Wet film humidifying system additionally arranged at air inlet of precise air conditioner condenser

Abstract

The invention relates to a wet film humidifying system additionally arranged at an air inlet of a precise air conditioner condenser. The wet film humidifying system comprises a condenser body, a wet film humidifier for cooling the condenser body, a water spraying system for providing cooling water for the wet film humidifier and a water tank for collecting wet film spraying water. A wet film humidifier is installed at the rear end of the condenser body, a high-water-absorption wet film is vertically laid in the wet film humidifier, and a water distributor is installed on the top of the wet film humidifier and used for evenly distributing water flow. Water permeates downwards along the wet film under the action of gravity, and water is absorbed by the wet film to form a uniform water film. The heat exchange effect of the air conditioner condenser can be improved, the influence of the heat island effect on the condenser is avoided, the frequency of high-pressure protection warning of the compressor is reduced, and the maintenance and repair cost of the air conditioner is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of precision air conditioning, and relates to a wet film humidifier for precision air conditioning, and in particular to a wet film humidification system installed at an air inlet of a precision air conditioning condenser. Background Art

[0002] At present, our company has 3 IDC computer rooms and 1 power supply room. Currently, 21 computer room-specific precision air conditioners are installed, each of which is a dual system. However, due to the limited area of ​​the air conditioner condenser platform, the air conditioner condensers are densely installed, and the heat dissipation of the air conditioner condensers affects each other. The ventilation and heat dissipation effect of the air conditioner condensers is particularly poor, which seriously affects the normal operation of the computer room-specific air conditioners.

[0003] During the peak summer weather, the air conditioners in the computer room frequently experienced high-pressure alarm protection on multiple air conditioner compressors, and the alarm persisted after power failure and reset. After on-site maintenance and analysis, the main reason for the high-pressure alarm of the compressor was that the air inlet temperature in the middle of the outdoor unit platform was too high, with the measured temperature as high as about 53°C, which greatly exceeded the rated operating temperature of the outdoor unit condenser of 40°C. Once a compressor of an air conditioner has a high-pressure alarm protection, in order to meet the cooling needs of the equipment in the computer room, the actual cooling capacity of other air conditioners will be greater, the outdoor condenser will dissipate more heat, and the outdoor condenser heat will affect each other more, forming a heat island effect on the outdoor condenser platform, and the number of air conditioners with high-pressure alarm protection of compressors will gradually increase.

[0004] In extreme weather conditions, a temporary measure is to continuously flush the air conditioning condenser with a water pipe to lower the temperature of the outdoor unit platform and help improve the heat exchange efficiency of the outdoor condenser.

[0005] However, the above measures still have problems such as high pressure alarm of precision air conditioners and high maintenance and repair costs.

[0006] Therefore, in order to solve the above-mentioned problem, the present invention proposes a wet film humidification system for installation at the air inlet of the precision air conditioner condenser.

[0007] After searching, no public documents of the prior art identical or similar to the present invention were found. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and propose a wet film humidification system for installation at the air inlet of a precision air-conditioning condenser. By using non-contact wet film heat exchange technology on the air inlet side of the air-conditioning condenser, the heat exchange effect of the air-conditioning condenser can be improved, the influence of the heat island effect on the condenser can be avoided, the frequency of the compressor high-pressure protection alarm can be reduced, and the maintenance and repair costs of the air-conditioning can be reduced.

[0009] The present invention solves the practical problem by adopting the following technical solutions:

[0010] A wet film humidification system for installation at the air inlet of a precision air conditioner condenser, comprising a condenser body and a wet film humidifier for cooling the condenser body, a water spraying system for providing cooling water for the wet film humidifier, and a water tank for collecting wet film spraying water;

[0011] A wet film humidifier is installed at the rear end of the condenser body. A highly water-absorbent wet film is vertically laid inside the wet film humidifier, and a water distributor is installed on the top of the wet film for evenly distributing water flow. Water penetrates downward along the wet film under the action of gravity, and the moisture is absorbed by the wet film to form a uniform water film.

[0012] Moreover, the water sprinkling system includes: a water inlet solenoid valve, a wet film humidifier water sprinkling nozzle and a water supply pump; one end of the water inlet solenoid valve is connected to the water distributor, and a wet film humidifier water sprinkling nozzle is installed below the water distributor to control the water to be evenly sprayed on the wet film; the other end of the water inlet solenoid valve is connected to the water tank through the water supply pump to provide cooling water for the wet film humidifier.

[0013] Moreover, a condensing fan is installed in front of the condenser body to discharge the heat of the heat exchanger inside the condenser body.

[0014] Moreover, the water tank is also connected to a water tank cleaning sewage outlet.

[0015] Moreover, the water tank is also connected to a municipal water inlet valve for replenishing water to the water tank.

[0016] Moreover, the water tank is connected to the water outlet of the wet film humidifier through a PPR water pipeline, and is used to store the circulating water of the wet film humidifier.

[0017] Moreover, the number of the condensers is at least one, and the number of the required condensers can be matched according to the indoor cooling capacity.

[0018] Moreover, the system is provided with at least one wet film humidifier for cooling the condenser, a water spraying system for providing cooling water for the wet film, and a water tank for collecting the wet film spraying water.

[0019] Advantages and beneficial effects of the present invention:

[0020] 1. The present invention proposes a wet film humidification system for installation at the air inlet of the precision air conditioner condenser, which can solve the problem of high-pressure alarm protection of the compressor of the precision air conditioner dedicated to the computer room due to the poor heat dissipation effect of the condenser in high temperature weather. It includes at least one condenser, a wet film humidifier and a water tank. The wet film humidifier is used in conjunction with the condenser, and the porous wet surface of the wet film exchanges heat with the air to reduce the temperature of the air entering the condenser, and then exchanges heat with the condenser to achieve the technical effect of efficient cooling equipment. Practice has proved that the present invention can significantly reduce the temperature of the air inhaled by the condenser and improve the cooling capacity and overall energy efficiency ratio of the precision air conditioner.

[0021] 2. The present invention can reduce the maintenance of air-conditioning personnel, greatly improve the heat exchange efficiency of the precision air-conditioning condenser, reduce the frequency of the condensing fan, and save energy and reduce carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the system composition of the present invention;

[0023] Figure 2 It is a working principle diagram of the present invention.

[0024] Description of reference numerals:

[0025] 1. Condenser body; 2. Wet film humidifier; 3. Water inlet solenoid valve; 4. Wet film humidifier water nozzle; 5. Water supply pump; 6. Condensing fan; 7. Municipal water inlet valve; 8. Water tank; 9. Water distributor; 10. PPR water pipeline; 11. Water tank cleaning drain outlet. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0027] A wet film humidification system for installation at the air inlet of a precision air conditioner condenser, such as Figure 1 As shown, it includes a condenser body and a wet film humidifier for cooling the condenser body, a water spraying system for providing cooling water for the wet film humidifier, and a water tank for collecting wet film spraying water;

[0028] A wet film humidifier is installed at the rear end of the condenser body. A highly water-absorbent wet film is vertically laid inside the wet film humidifier, and a water distributor is installed on the top of the wet film for evenly distributing water flow. Water penetrates downward along the wet film under the action of gravity, and the moisture is absorbed by the wet film to form a uniform water film.

[0029] In this embodiment, the water sprinkling system includes: a water inlet solenoid valve, a wet film humidifier water sprinkling nozzle and a water supply pump; one end of the water inlet solenoid valve is connected to the water distributor, and a wet film humidifier water sprinkling nozzle is installed below the water distributor to control the water to be evenly sprayed on the wet film; the other end of the water inlet solenoid valve is connected to the water tank through the water supply pump to provide cooling water for the wet film humidifier.

[0030] In this embodiment, a condensing fan is installed in front of the condenser body to discharge the heat of the heat exchanger inside the condenser body.

[0031] In this embodiment, the water tank is also connected to a water tank cleaning drain outlet.

[0032] In this embodiment, the water tank is also connected to a municipal water inlet valve for replenishing water to the water tank.

[0033] In this embodiment, the water tank is connected to the water outlet of the wet film humidifier through a PPR water pipeline and is used to store the circulating water of the wet film humidifier.

[0034] In this embodiment, the number of the condenser is at least one, and the number of the required condensers can be matched according to the indoor cooling capacity.

[0035] In this embodiment, at least one wet film humidifier for cooling the condenser, a water spraying system for providing cooling water for the wet film, and a water tank for collecting the wet film spraying water are provided.

[0036] In order to achieve pre-cooling of the condenser inlet air temperature and reduce the temperature of the air around the condenser, the wet film cools the air around the condenser through the cooling water attached to the surface. The cooling water flows through the wet film and finally flows into the water tank.

[0037] The functions of each component are further described below:

[0038] The condenser body 1 (the bottom of the condenser is installed on a galvanized flat steel bracket and fixed to the bracket by fixing bolts on both sides), the condenser body 1 includes a heat exchanger, a condensing fan, and a condenser speed regulating board. The rotation frequency of the condensing fan is automatically adjusted according to the pressure value monitored by the condensing speed regulating board.

[0039] The wet film humidifier 2 (the bottom of the wet film humidification frame used to install the wet film humidifier is installed on a galvanized flat steel bracket. The bracket height is the same as the condenser bracket and is also fixed to the bracket by fixing bolts on both sides of the bottom) is installed close to the rear end of the condenser body. Water is sent to the water distributor 9 through the pipeline via the water pump 5 and the water inlet solenoid valve 3. The inside is a highly water-absorbent wet film. Under the action of gravity, water penetrates downward along the wet film material, and the moisture is absorbed by the wet film material to form a uniform water film. When dry air passes through the wet film material, water molecules fully absorb the heat in the air and vaporize and evaporate, thereby increasing the humidity of the air and forming humid air. The increase in air humidity causes the temperature to drop.

[0040] The water inlet solenoid valve 3 (connected to the PPR water pipeline 10 through a threaded connection) controls the water supply to the wet film humidifier.

[0041] The wet film humidifier water spray nozzle 4 (the spray nozzle is connected to the water distributor 9 through a plastic thread) controls the water to be sprayed evenly on the wet film.

[0042] The upper water pump 5 is connected to the PPR water pipeline 10 through a thread, pumping water from the inside of the water tank 8 to the top of the wet film humidifier to provide power for the water circulation pipeline.

[0043] The condensing fan 6 (fixedly connected to the condenser by bolts) discharges the heat of the heat exchanger inside the condenser.

[0044] The municipal water inlet valve 7 (connected to the municipal water inlet pipeline through a threaded connection) replenishes the water source for the water tank 8.

[0045] The water tank 8 (directly installed on the ground) stores the circulating water of the wet film humidifier.

[0046] The water distributor 9 (connected to the water inlet pipe 10 through a hot melt connection) evenly distributes the water flow to ensure uniform water distribution in the water treatment equipment.

[0047] PPR water pipeline 10 (connected with wet film humidification frame and water tank by hot melt and sealant).

[0048] The water tank cleaning drain outlet 11 (located at the bottom side opening of the water tank, a PPR pipe is installed, with a length of about 5 cm).

[0049] The working process of the present invention is:

[0050] An electronic water level sensor is installed inside the water tank 8 and is linked to the municipal water inlet valve 7 (to control the opening and closing of the water valve). The condenser body is equipped with a pressure switch. When the condenser fan rotates, the upper water pump 5 and the water inlet solenoid valve 3 are energized, and the water pump draws water from the water tank 8. The water passes through the PPR water pipe 10 and the water inlet solenoid valve 3 to the water distributor 9. Under the action of gravity, the water penetrates downward along the wet film material, and the moisture is absorbed by the wet film material to form a uniform water film, which reaches the bottom of the wet film and flows into the water tank 8 through the PPR water pipe 10, and circulates in sequence.

[0051] When dry air passes through the wet film material, water molecules fully absorb the heat in the air and vaporize and evaporate, increasing the humidity of the air to form humid air. The increase in air humidity causes the temperature to drop, achieving pre-cooling of the condenser inlet air temperature.

[0052] The working principle of the present invention is as follows: Figure 2 As shown:

[0053] A wet film humidification system installed at the air inlet of a precision air conditioner condenser is a cooling device that uses water evaporation to absorb sensible heat from the air to lower the air temperature. In actual applications, the wet film humidifier is used in conjunction with the condenser. The condensing fan draws out the air inside the machine to generate negative pressure, forcing the air outside the machine to pass through the surface water film of the porous wet film, converting a large amount of heat in the air, reducing the temperature of the air entering the machine by 4-9°C, and then exchanging heat with the condenser to achieve the technical effect of efficient cooling equipment.

[0054] From the physical principle of water evaporation and heat absorption, the efficiency of evaporation and heat absorption is mainly restricted by three related factors: the size of the contact surface area between water and air, the speed of air circulation, and the temperature of water supply. The wet film is matched with the existing air conditioning condenser to achieve complementarity. The wet film has a large surface area and a specific three-dimensional porous structure, which provides an ideal evaporation surface area for heat exchange between water and air: the large air volume fan configured in the outdoor unit of the air conditioning condenser ensures the circulation speed of air in the wet film outdoor unit; therefore, the combination of the wet film humidifier and the existing air conditioning condenser can achieve complementary advantages and a strong combination without changing the existing air conditioning unit, so as to achieve the best effect of improving the cooling of the condenser surface.

[0055] The working principle of a wet film humidification system installed at the air inlet of a precision air conditioning condenser is as follows: Figure 2 As shown in the figure, the circulating water pump has been operating normally to ensure that the municipal water with reduced temperature in the bottom water tank is brought to the top horizontal water distribution pipe of the wet film humidifier, and the water is sprayed evenly on the wet film through the water distribution pipe. Due to the resistance characteristics of the wet film, water molecules fully exchange heat with the outside air through gravity, and the water evaporates and absorbs heat, reducing the air temperature at the condenser inlet, so that the air at the condenser inlet is pre-cooled. After the heat exchange, the water with increased temperature in the wet film device flows into the water tank through the outlet pipe, forming a closed cycle, and no water resources are wasted.

[0056] Practice has proved that after the wet film humidification system is installed at the air inlet of the precision air-conditioning condenser, the temperature of the air inhaled by the condenser is reduced by 4-9°C. After pre-cooling by the wet film humidification system, the heat carried away by the air per unit flow rate increases, thereby reducing the condensing temperature of the precision air-conditioning unit, increasing and improving the heat exchange capacity of the condenser, increasing the cooling capacity of the precision air-conditioning, and improving the overall energy efficiency ratio of the air-conditioning unit.

[0057] It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A wet film humidification system installed at the air inlet of a precision air conditioner condenser, characterized in that: It includes a condenser body and a wet film humidifier for cooling the condenser body, a water spraying system for providing cooling water for the wet film humidifier, and a water tank for collecting wet film spraying water; A wet film humidifier is installed at the rear end of the condenser body. A highly water-absorbent wet film is vertically laid inside the wet film humidifier, and a water distributor is installed on the top of the wet film for evenly distributing water flow. Water penetrates downward along the wet film under the action of gravity, and the moisture is absorbed by the wet film to form a uniform water film.

2. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The water sprinkling system includes: a water inlet solenoid valve, a wet film humidifier water sprinkling nozzle and a water supply pump; one end of the water inlet solenoid valve is connected to the water distributor, and a wet film humidifier water sprinkling nozzle is installed below the water distributor to control the water to be evenly sprayed on the wet film; the other end of the water inlet solenoid valve is connected to the water tank through the water supply pump to provide cooling water for the wet film humidifier.

3. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: A condensing fan is installed in front of the condenser body to discharge the heat of the heat exchanger inside the condenser body.

4. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The water tank is also connected to a water tank cleaning sewage outlet.

5. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The water tank is also connected to a municipal water inlet valve for replenishing water to the water tank.

6. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The water tank is connected to the water outlet of the wet film humidifier through a PPR water pipeline and is used for storing circulating water of the wet film humidifier.

7. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The number of the condensers is at least one, and the number of the required condensers can be matched according to the indoor cooling capacity.

8. A wet film humidification system for installation at the air inlet of a precision air conditioner condenser according to claim 1, characterized in that: The system is provided with at least one wet film humidifier for cooling the condenser, a water spraying system for providing cooling water for the wet film, and a water tank for collecting the wet film spraying water.

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