Forum Posts

• Shawn Lu

  • 235 posts
  Posted in the topic The first Wind snookball club open in Handan in the forum Technology

  July 25, 2023 10:10 PM EDT

  The first Wind snookball club open in Handan. Snookball is a new sport born after the perfect fusion of football and billiards. Its sport form is a kind of billiards kicked with feet. Not with a rod. Pool football is very interactive, but the competition method is relatively simple, and the exercise intensity is relatively small. Therefore, pool football has a very wide audience and is not only loved by young men and women, but even the elderly and children can also use their fists. Not only can you play pool in the store, but you can also play billiards and football darts.

  

• Shawn Lu

  • 235 posts
  Posted in the topic How do cooling towers work for HVAC in the forum Technology

  June 7, 2023 3:18 AM EDT

  How do cooling towers work? Those systems are used in many Atlanta, GA business facilities for effective aircon. Commercial HVAC systems with cooling towers are greater electricity green than different devices, however how do they paintings? With the most practical system required for your facility’s cooling desires, such cooling structures provide a solution to the hassle.
  
  What Are Cooling Towers?
  A cooling tower gets rid of unwanted heat from chillers. Particularly, how do cooling towers work – as a warmth elimination device that utilizes water as a warmness switch medium. warmth is removed from the water supply thru evaporation.
  
  To try this, it pumps water to the top of the tower and actions down flow plates to the basin. Air goes through the plates and over the water, which releases warmness thru evaporation because it cycles thru the cooling tower. Latent warmth from vaporization is launched while warm water and cool air mixes.
  
  Wherein Are Cooling Towers Used?
  Cooling towers are an fundamental a part of refrigeration systems in facilities that require procedure cooling. They are often visible in facilities serving industries such as:
  
  Chemical processing
  metal turbines
  energy flowers
  manufacturing
  Refineries
  natural gasoline processing
  meals processing
  How do cooling towers paintings isn’t restrained to technique cooling – they are also used for comfort manipulate in quite large industrial buildings. you can discover cooling towers as part of a comfort gadget in:
  
  Colleges
  accommodations
  Hospitals
  Airports
  workplace buildings
  How Do Cooling Towers paintings in business HVAC?
  The intention of HVAC structures in commercial buildings is to warmth and funky an extremely large region. due to this, the dimensions of devices have to proportionally growth to the space they need to deliver conditioned air. Cooling towers healthy in here. they are larger, sturdier, and take on more paintings than smaller systems. when utilized in a business HVAC, cooling towers allow for awesome air with some distance less power.
  
  Cooling towers are designed and sized based totally at the cooling load of the space they're set up to serve. Building size, relative humidity tiers, and different factors are taken into consideration whilst determining cooling tower size.
  
  Condenser coils are the primary consciousness of these tower structures. Coils generate a whole lot of warmth because the gadget cycles. Once they overheat, problems begin to stand up with the air con. Cooling towers move cold water via the warm coils, then right into a warmth exchanger.
  
  A heat exchanger pulls the warmth from the water and pushes it returned to the coils, which reduces the amount of work for the system as an entire.
  
  Due to the fact business HVAC gadgets want to chill such big regions, this affords a smart way to sudden breakdowns. The work an HVAC unit does to cool business areas far exceeds that of a residential unit, so these towers offer a wanted crutch for the unit. Cooling towers remove some of the strain for the HVAC gadget, which lessens the risk of a breakdown.
  
  Right upkeep for Cooling Towers
  due to the fact cooling towers are their own beast in terms of cooling era, they require specific maintenance. Clever renovation programs improve upon how cooling towers paintings to save centers money and time.
  
  Here are some pointers for his or her preservation:
  
  Thorough cleaning
  elimination of scale deposits
  Water remedy
  issue inspection
  easy very well
  Water pools for long periods of time in a cooling tower, which affords the capability for bacterial growth. Well, disinfect and preserve the indoors of the cooling tower at the least two instances a yr to save you harmful bacteria from forming. Chemical cleaning answers are circulated thru the gadget and flushed out. strain washing and vacuums also are used to do away with contaminants from the cooling tower.
  
  Because of the large volumes of water involved in how cooling towers work, those additives are ability breeding grounds for the improvement of Legionella micro organism. the warmth contained in cooling tower water also performs a function. Due to this hazard, proper disinfection and preservation is critical to prevent outbreaks of Legionnaires’ disorder caused by a infected cooling tower.
  
  Clean scale deposits
  Minerals present in evaporated water keep on with cooling towers, which decreases the performance of the system. put off limescale buildup to 3 instances a year for a functional cooling tower.
  
  Deal with the water
  Water first-rate plays a massive part inside the functionality of cooling towers. Gadget breakdowns arise more regularly while your water isn’t top excellent. Water remedies ensure your water is the best first-rate and does not harm your cooling tower. Water treatment is usually finished on a monthly basis unless the gadget producer specifies otherwise.
  
  Factor Inspection
  A cooling tower’s mechanical components require consistent inspection and low modifications. Those additives consist of automobiles, enthusiasts, and belts. electrical additives additionally need everyday inspection and monitoring for alternative needs of capacitors and wiring.
  
  Cooling Tower services from Estes industrial
  Cooling towers offer business HVAC structures with a miles-wished strain reliever. Because they're so useful, keep in mind them on your commercial area. heat and Georgia move hand-in-hand, but you don’t must go through thru excessive temperatures if you have the assist of an effective cooling device.
  
  How do cooling towers paintings for facilities throughout the Atlanta vicinity? With the help of Estes business, of route! For extra statistics about these benefits, supply Estes’ business group a name. We offer free carrier estimates and carry out business HVAC preservation, upkeep and installations.
  
  Estes commercial also offers constructing automation device answers in addition to thermostats/controls and air flow assist. You’ll discover us supporting industrial clients at some point of Atlanta, consisting of Dunwoody, Decatur, Roswell, Peachtree city and Kennesaw.
  
  We also serve clients in Johns Creek, Sandy Springs, Virginia Highland, Druid Hills, Midtown, Buckhead, Marietta and Fayetteville.

• Shawn Lu

  • 235 posts
  Posted in the topic Environmental Benefits from cooling towers in the forum Technology

  May 24, 2023 4:00 AM EDT

  Industrial Cooling Tower

   

   

  Industrial cooling towers are a must-have in most industries due to their ability to facilitate heat transfer between power plants, factories, and numerous other building systems. Cooling towers are very specific in how they operate. However, as technology has advanced, so have the options for efficient industrial cooling tower systems. One of the most efficient technologies available is known as a cross flow cooling tower.

   

  Crossflow towers are a newer type of industrial cooling tower developed to increase the efficiencies and longevity of traditional cooling towers. Using a combination of state-of-the-art technologies, crossflow cooling towers offer several benefits as opposed to more traditional cooling systems.

   

  Environmental Benefits

   

   

  Crossflow cooling towers provide an eco-friendly alternative to conventional cooling towers. As traditional towers must be operated in warm weather conditions, the amount of water consumed by these systems is quite substantial. Crossflow cooling towers significantly cut down on water use, which helps to reduce industrial water consumption and lower the negative environmental impact.

   

  Additionally, crossflow cooling towers help to reduce emissions associated with conventional cooling methods. Crossflow towers provide an efficient way to dissipate heat, thus avoiding emissions and reducing the overall energy demands of industrial cooling systems.

   

  Power Efficiency

   

   

  Crossflow towers are also designed for maximum power efficiency. Because of its advanced design, a crossflow cooling tower requires less energy than traditional cooling towers. In order to maximize efficiency, these towers use a two-stage cooling process, which helps to reduce energy consumption and optimize cooling performance.

   

  Crossflow towers also require less maintenance than standard cooling towers. Reduced maintenance requirements can help to save time and money when it comes to repairing and replacing parts of the cooling system.

   

  Overall, crossflow cooling towers provide a reliable and efficient way to power industrial cooling systems. With a reduced environmental footprint, less water consumption, and higher power efficiency, crossflow cooling towers are the ideal choice for many industrial applications. By choosing to use a crossflow cooling tower in their respective cooling system, many companies have been able to reduce operational costs and improve overall performance.

• Shawn Lu

  • 235 posts
  Posted in the topic What is a cooling tower? in the forum Technology

  May 23, 2023 10:46 PM EDT

  1. What is a cooling tower?

  See the picture, the chubby green tank in the picture is the cooling tower.

   

  2. What types of cooling towers are there?

  Cooling towers can be divided into open cooling towers and closed cooling towers;

   

  1. The picture above is an open cooling tower. By spraying the circulating water onto the glass fiber filler, the contact between the water and the air can achieve heat exchange, and then the fan drives the air circulation in the tower to combine with the water The hot air flow after heat exchange is taken out to achieve cooling.
  Features: Simple structure and low price, but the water quality of circulating water is not easy to control, and the water quality is poor.

   

  2. The picture above is a closed cooling tower, the air intake passes through the air intake grille, there is no filler, and the main core part is a copper tube surface cooler. And the tower body is designed with internal circulation and external circulation in two ways. The outer circulation is the control spray system, and the inner circulation is the cooling medium pipeline. Multiple fans are designed on the top. The closed cooling tower consumes less water and has a long service life, but the price is 2~3 times more expensive than the open cooling tower and the maximum water volume of a single cooling tower is 300CMH.

  The advantage is that the circulating water quality is easy to control and the water quality is good.

  ——————————————————————————————————————

  The following types are introduced:

  Cross-flow cooling towers and counter-flow cooling towers (belonging to open cooling towers)

   

  1. Cross flow tower refers to a cooling tower in which hot water passes through the packing from top to bottom, while air flows through the packing from the horizontal direction, and the flow direction of hot water and air is nearly 90 degrees.

   

  2. The countercurrent tower refers to a cooling tower in which hot water passes through the packing from top to bottom, while air flows through the packing from bottom to top. The flow direction of hot water and air is nearly 180 degrees.

  The cross-flow cooling tower is more stable than the counter-flow cooling tower, with lower failure rate and low noise, so the cross-flow cooling tower is mostly used in civil buildings.

   

  FRP cooling tower and stainless steel cooling tower

   

  1. The FRP cooling tower has high cost performance, good corrosion resistance and light weight. Open cooling towers often use FRP materials.

   

  2. The stainless steel cooling tower is relatively heavy, but it has good fire resistance, long service life and slightly expensive price. Closed cooling towers are often made of stainless steel.
  ——————————————————————————————————————

   

  3. The characteristics of the cooling tower in the project

  1. Noise

  Sources: splashing water noise, fan noise, motor water pump and pipeline vibration noise
  Treatment: basic measures for cooling tower noise control,

  1), physical treatment: muffler, sound insulation screen, energy dissipation and noise reduction device for barrier falling into water, shock absorber and rubber soft connection

   

  2) Due to the huge sound source of the cooling tower, the noise level decays very slowly within 10-25 m from the air inlet, so the cooling tower should be far away from the user if conditions permit.
  3) Change the air inlet direction of the cooling tower to reduce the noise value.

   

  2. Large size

  Take a super high-rise office building as an example

  The construction area is 165,000 square meters, the main engine is 4900RT, equipped with 8 cooling towers, 6 sets of 600CMH (each size is 6.3mX4.5mX7m), 1 set of 700CMH (7.4mX4.9mX8m), and 1 set of 400CMH ( 5.9 meters X4.0 meters X6.5 meters), covers an area of about 230 square meters, nearly 8 meters high.

  If you want to lower the cooling tower, you need to splice and place two cooling towers to increase the floor area. The actual design should be in accordance with the building and structure to determine the location.

   

  3. Whether noise elimination and aesthetics can avoid cooling towers

  The function of the cooling tower is that the cooling water carries the waste heat in the air conditioning system to exchange heat with the air, and dissipates the waste heat into the atmosphere. If the surrounding wall is covered to affect its normal heat dissipation, the evaporator of the main engine in the refrigeration room will overheat, and the efficiency of the main engine will be greatly reduced or even crashed, which will affect the normal operation of the air conditioning system. Not only directly affect the functional use of the building, but also reduce the life of the air conditioner host.

   

  4. Application of cross flow cooling tower

  1. Air intake from one side or both sides, wind out from the top

   

   

  2. Side air cooling tower

   

  5. Several special ventilation methods for cooling towers

  1. In the form of single-sided air inlet and top air outlet, it is necessary to increase the capacity of the cooling tower.

   

  2. To be placed in a pit, there needs to be a pit large enough to ensure the wind, and the drainage problem needs to be solved.

   

  6. The relationship between the location of the cooling tower and the building

  1. Set up on the first floor: Due to the size and noise of the cooling tower, this case is rarely used in civil buildings, and it is used in industrial projects or projects with more green areas.

   

  2. Located on the roof of the tower

  The cooling tower is located in the tower (148.75 meters)

  a. Advantages: It has little impact on the facade of the building, but it needs to coordinate with the track of the window cleaning machine on the roof of the tower. Improve the commercial value of podium roof use;

  b. Disadvantages: The cooling water supply and return waterway is long, about 320 meters; the power of the water pump is relatively large, and the operating cost is high.

  The condenser end of the chiller and the cooling water pipe system are all greater than 1.0 Mpa; it is necessary to use 2.0 MPa equipment to increase the initial investment and increase the probability of valve leakage damage.

   

  3. Located on the roof of the podium

  The cooling tower is located on the roof (elevation 20.9 meters)

  a. Advantages: less cooling water supply and return pipelines, about 100 meters;

  The power of the water pump is small and the operating cost is low.

  The condenser end of the chiller and the cooling water pipe system are all less than 1.0 Mpa; valves and equipment operate at low pressure to reduce the probability of water leakage damage

  b. Disadvantages: It has an impact on the podium roof swimming pool, roof landscape and building facade; it has an impact on heat dissipation, floating water and noise on the podium roof pool, roof activity area, and low-level users of the office tower; it has adverse effects on the 5th floor conference room noise impact.

   

  4. Located on the top floor of a high-rise over 180 meters

  When there is no podium or the location of the podium cannot meet the requirements of the cooling tower, the cooling tower should be placed on the top of the super high-rise building

  a. Since the maximum pressure of the main engine is 2.0MPa, considering the safety, when the building exceeds 180 meters, the cooling tower needs to be installed on the roof to use a plate heat exchanger to reduce the pressure of the air conditioner main engine.

  b. The impact on areas with high commercial value such as podium buildings is reduced, but the impact of equipment such as intermediate cooling water pumps on the upper and lower floors needs to be considered. At the same time, due to the addition of transmission equipment in the system, the operating cost of the system will be greatly increased, and the efficiency of the air-conditioning system will be reduced at the same time. The increased equipment and valves will not only increase the equipment room, but also increase the workload of later maintenance. The water pipe (DN700) , also affects the storey height near the equipment room. The power of the 34-layer cooling water pump (not including the standby) is 132X3+55X2=506kw, which costs about 5,000 yuan per day (10 hours of operation) on the hottest day.

  7. Problems to be paid attention to when setting up cooling towers

  Principle: The heat dissipation power of the cooling tower must be at the maximum design outdoor wet bulb temperature, which can meet the heat dissipation requirements of the refrigeration system at full load. When selecting a cooling tower, attention must be paid to the relevant noise requirements. The cooling tower must not exceed the allowable noise level when it operates alone or simultaneously with other equipment.

  1. Due to the noise problem of the cooling tower, the location of the cooling needs to be confirmed by the EIA and passed the acceptance.

  2. The cooling tower needs to be far away from the user if possible, and requires noise reduction and vibration isolation treatment.

  3. Avoid the cooling tower being surrounded by walls, improve the ventilation and heat dissipation effect of the cooling tower, and improve the efficiency of the cooling tower.

  4. The noise-generating rooms such as water pumps on the middle floor need to be treated with sound-absorbing and shock-absorbing treatment, including floating platforms.

  5. The cooling water pipe well needs to be close to the air-conditioning machine room and cooling tower, far away from the office space. If it cannot be avoided, it needs to be silenced and shock-absorbed.

  6. When it is located in the podium, the side air cooling tower can be used to match the building facade.

• Shawn Lu

  • 235 posts
  Posted in the topic HONMING Air Handling units Maintenance in the forum Technology

  May 17, 2023 4:30 AM EDT

  Air Handling units Maintenance

  Air handlers, sometimes referred to as HVAC Air Handler Units, are an essential part of a hospital’s indoor air quality. They help to stabilize the temperature, humidity, and cleanliness of the air inside a facility, and if maintained properly, can even improve the bacteria and toxicity levels within the indoor air. Without air handlers, the air in a hospital would become stagnant and filled with particles, germs and bacteria that could be harmful to the health of patients and staff. It is essential to a hospital’s HVAC system that the air handlers be routinely cleaned and maintained to ensure that they are functioning properly and safely.

  To ensure optimal air quality and reliable performance, there are several maintenance tasks that should be performed on air handlers in a hospital. First, the filters in the unit should be routinely replaced and checked for signs of wear and tear. Additionally, the exhaust grills should be regularly cleaned and inspected for any signs of dirt buildup or clogged vents. It is also important to inspect the air handler and its components for any loose parts or potential safety hazards. Finally, the fan coil blowers and motors should be inspected to ensure they are running properly and efficiently. Failure to perform regular maintenance can result in not only inefficient system performance, but also in indoor air quality issues such as high levels of dust, allergens and other pollutants.

  HVAC Air Handler Units

  Hospitals rely on HVAC air handlers to provide stable, efficient, and healthy air within the facility at all times. The air handler is the centerpiece of the HVAC system and performs the most important job: controlling and cleaning the air. The air handler is composed of several components including blowers, motors, and filters that work closely together to move air throughout a building and clean it of contaminants.

  Air handling units typically consist of a fan, filter section, blower, refrigerant, coil, and drain pan. The fan draws air across the filter, which catches airborne particles like dust and pollen. The blower then compresses and pushes the now cleaned air throughout the building. The refrigerant then absorbs heat from the air, cooling it down before the coil moves it through the entire building. Finally, the drain pan collects excess moisture that is removed from the air.

  Air handlers are critical pieces of equipment in hospitals, as they help to ensure that air is of the highest quality and free of any contaminants that could put staff and patients at risk. It is essential that hospital administrators ensure that their air handler units are regularly serviced and maintained in order to ensure proper performance, safety, and indoor air quality.

  Regular checks of each of the different components of the system should be performed as well as replacing filters, checking motors and blowers, and inspecting the filter section. Additionally, any components that are in need of repair should be addressed immediately to ensure that the air handler is functioning properly. Lastly, it is important for the proper amount of refrigerant to be present in the system to help with cooling and humidity control.

  By performing regular maintenance and checks, air handling units in hospitals are able to function properly and keep indoor air quality at a healthy level, free of any contaminants that could adversely affect patients and employees. Maintaining a well-functioning air handler unit is essential to a healthy hospital environment.