CN201731575U - An energy-saving and environment-friendly purification air-conditioning system - Google Patents

Abstract

The utility model discloses an energy-concerving and environment-protective type purifies air conditioning system, including purifying factory building F and system connection pipeline, it comprises heat recovery constant temperature and humidity unit A, purification pressurization wind cabinet B, cooling system C, waste heat utilization system D, air-cooled heat transfer system E: the heat recovery constant temperature and humidity unit and the purification pressurization air cabinet provided by the utility model can provide sufficient constant temperature and humidity clean air for a purification plant, effectively solve the problems of temperature and humidity uniformity and cleanliness in the environment, and carry out energy-saving purification treatment on a cooling water system by adopting a secondary air return method and using a hydraulic scale cleaning and absorbing antirust device through recycling condensation waste heat generated during refrigeration of an air conditioner host, thereby playing the roles of scale prevention, sterilization and algae removal, no pollution discharge and heat exchange performance improvement and achieving the purposes of energy conservation, emission reduction and environmental protection; the heat supply in winter is carried out through the outdoor air-cooled heat exchange system, and the requirement of required temperature and humidity in the four seasons of a purified factory building is met.

Description

An energy-saving and environment-friendly purification air-conditioning system

technical field

The utility model belongs to the technical field of air refrigeration, and relates to air conditioning and purification technology, in particular to an energy-saving and environment-friendly purification air-conditioning system for plant purification and air conditioning.

Background technique

The purification air-conditioning system of the factory building is a large energy-consuming household, and its power consumption exceeds 30% of the total power consumption of the purification system. , temperature and humidity control and other aspects have been continuously improved, the patent number is 02219004.X "purifying air conditioner stand-alone" Chinese patent, a sterilization device is installed on the air conditioner stand-alone to improve hygiene performance; The Chinese patent for the installation of the air-conditioning unit, which is mainly to solve the temperature and humidity uniformity and cleanliness in the environment; the patent number is: 94107167.7 "Large space purification air-conditioning system energy-saving method and device" Chinese patent , using the method of compressing and purifying the space, using the nozzle self-purifier to generate a short cycle process and using the side-sent turbulent air and small air exchange times technology to achieve partial purification of tall and large spaces, and receive significant effects of saving capital and energy. Even so, the above-mentioned patented technologies do not take into account the high energy consumption of the air conditioner.

Contents of the invention

The purpose of this utility model is to provide an energy-saving purification and environmental protection air-conditioning system that recycles and utilizes the condensed waste heat generated when the main unit of the air conditioner is refrigerated, adopts the method of secondary return air, and uses a hydraulic cleaning, suction, and anti-rust device to treat the cooling water system. Anti-scaling, sterilization and algae removal, no pollution discharge, and improved heat transfer performance. The heat recovery constant temperature and humidity unit and the purification and pressurization air cabinet of this energy-saving purification and environmental protection air-conditioning system can provide sufficient clean air with constant temperature and humidity for the purification plant , effectively solve the problem of temperature and humidity uniformity and cleanliness in the environment, and achieve the goal of energy saving, emission reduction and environmental protection;

The technical solution of the utility model is as follows: an energy-saving and environment-friendly purification air-conditioning system, including a purification workshop F and system connecting pipes, characterized in that it consists of a heat recovery constant temperature and humidity unit A, a purification and pressurization air cabinet B, and a cooling system C. Composition of waste heat utilization system D. Air-cooled heat exchange system E; where:

-The heat recovery constant temperature and humidity unit A is equipped with a condenser, a compressor, a heat recovery heat exchanger, an expansion valve, a first primary filter, an evaporator, a hot water heat exchanger, a humidifier, a fan assembly and Flow equalization device; the outdoor fresh air is connected to the air volume regulating valve through the pipeline, and the return air volume regulating valve is connected to the return air pipe of the purification workshop F by the return air shaft; the air supply air volume regulating valve is connected to the inlet of the static pressure box by the air pipe; The exhaust port of the machine is connected with the refrigerant inlet of the heat recovery heat exchanger with pipes; the refrigerant outlet of the heat recovery heat exchanger is connected with the refrigerant inlet of the condenser with pipes;

-The purifying and pressurizing wind cabinet B is provided with differential pressure controller, the 2nd primary effect filter, air supply unit, flow equalizing device and intermediate effect filter; the air volume regulating valve is connected with the outlet of the static pressure box with the air supply pipe ;

-The cooling system C is provided with a cooling tower, a hydraulic cleaning and rust-absorbing device, a valve, a filter, a water pump, the supply water is connected to the cooling tower through a valve, and the water outlet of the cooling tower passes through a valve and a filter through a cooling water pipeline 1. The water pump is connected to the water inlet of the condenser; the water return port of the cooling tower is connected to the water outlet of the condenser with a cooling water pipe;

- The waste heat utilization system D is equipped with a hot water tank, a mechanical filter, and a circulating water pump; the heat recovery heat exchanger and the hot water heat exchanger of the heat recovery constant temperature and humidity unit A are connected to the hot water pipeline for supply water The hot water tank is connected to form a loop;

-The air-cooled heat exchange system E is provided with an air-cooled heat exchanger and a fan: the refrigerant inlet of the air-cooled heat exchanger is connected with the pipeline between the valve and the condenser and the expansion valve, and the air-cooled heat exchanger The pipeline for the refrigerant inlet is connected to the pipeline between the evaporator and the return air pipe of the compressor through the valve.

The energy-saving and environment-friendly purification air-conditioning system described in the utility model is also characterized in that:

The purification plant F is provided with return air shutters, return air shaft pipelines, high-efficiency filter units, and air volume control valves: the air volume control valves are connected with the air volume control valves of the purification and pressurization air cabinet B through the clean air pipelines; The return air pipeline is divided into two paths, one path is connected with the air volume regulating valve of the purifying pressurized air cabinet B, and the other path is connected with the return air volume regulating valve of the heat recovery constant temperature and humidity unit.

The beneficial effect of the utility model energy-saving and environment-friendly purification air-conditioning system is that,

1. The heat recovery constant temperature and humidity unit and the purification and pressurization air cabinet provided by the utility model can provide sufficient clean air with constant temperature and humidity for the purification plant, effectively solving the problems of temperature and humidity uniformity and cleanliness in the environment.

2. The hydraulic scale removal and rust prevention device set in the utility model can effectively treat the cooling water system, and play the role of preventing scale, sterilizing algae, pollution-free discharge, improving heat transfer performance, and stabilizing system pressure, so as to achieve energy saving, environmental protection and reduction row target;

3. The secondary return air is used to reduce the cooling and heating load on the air side, reduce the temperature difference of the air supply, and achieve the energy-saving effect and comfort of the operation of the purification room, thereby reducing the power consumption of the main engine and greatly saving energy;

4. The waste heat utilization system provided by the utility model recycles and utilizes condensation waste heat, replaces the electric heating device, and saves a large amount of electric heating energy consumption;

5. Set up an outdoor air-cooled heat exchange system for heating in winter to ensure that the purification room meets the required temperature and humidity requirements in all seasons.

Compared with the existing purification air-conditioning system, the utility model can save energy by 30%-40%.

Description of drawings

Fig. 1 is a schematic structural diagram of an energy-saving and environment-friendly purification air-conditioning system of the present invention.

In the figure, 1. Return air louvers, 2. Return air shaft pipe, 3. High-efficiency filter unit, 4. Air volume regulating valve, 5. Return air pipe, 6. Clean air pipe, 7. Condenser, 8. Compressor, 9. Heat recovery heat exchanger, 10. Refrigerant pipeline, 11. Expansion valve, 12. Return air volume control valve, 13. First primary filter, 14 Evaporator, 15. Hot water heat exchanger, 16. Humidification Device, 17. Fan assembly, 18. Air supply air volume regulating valve, 19. Static pressure box, 20. Air supply pipe, 21. Air volume regulating valve, 22. Pressure difference controller, 23. The second primary filter, 24 .Blower unit, 25. Air volume regulating valve, 26. Medium-efficiency filter, 27. Air volume regulating valve, 28. Cooling tower, 29. Hydraulic cleaning, suction and rust prevention device, 30. Cooling water pipeline, 31. Air-cooled heat exchange Device, 32. fan, 33. hot water pipe, 34. hot water tank, 35. air volume regulating valve, 36. mechanical filter, 37. circulating water pump.

A. Heat recovery constant temperature and humidity unit, B. Purification pressurized air cabinet, C. Cooling system, D. Waste heat utilization system, E. Air-cooled heat exchange system, F. Purification workshop.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

An energy-saving and environment-friendly purification air-conditioning system, as shown in Figure 1, includes a purification plant F and system connecting pipes, which consists of a heat recovery constant temperature and humidity unit A, a purification and pressurization air cabinet B, a cooling system C, a waste heat utilization system D, The air-cooled heat exchange system E constitutes; where:

Heat recovery constant temperature and humidity unit A is equipped with condenser 7, compressor 8, heat recovery heat exchanger 9, expansion valve 11, first primary filter 13, evaporator 14, hot water heat exchanger 15, humidifier 16 , fan assembly 17 and flow equalization device; the outdoor fresh air is connected with the air volume control valve 35 through the pipeline, and the return air volume control valve 12 is connected with the return air shaft pipeline 2 of the purification workshop F with the return air line 5; the air supply air volume control valve 18 is used to send The air duct 20 is connected with the inlet of the static pressure box 19; the outlet of the compressor 8 is connected with the refrigerant inlet of the heat recovery heat exchanger 9 with the refrigerant pipeline 10; the refrigerant outlet of the heat recovery heat exchanger 9 is connected with the refrigerant pipeline 10 with the condensation The refrigerant inlet of the condenser 7 is connected; the refrigerant outlet of the condenser 7 is divided into two routes through the refrigerant pipeline 10 after the liquid storage tank and the valve, one is connected with the inlet of the air-cooled heat exchanger 31, and the other is connected with the expansion valve 11 and the evaporator 14 The refrigerant inlet is connected; the refrigerant outlet of the evaporator 14 is divided into two paths by the refrigerant pipeline 10 through a valve, one path is connected with the outlet of the air-cooled heat exchanger 31, and the other path is connected with the return air pipe of the compressor 8; the water inlet of the condenser 7 Use cooling water pipeline 30 to be connected with the water outlet of cooling tower 28 through check valve, valve, water pump, filter, the water outlet of condenser 7 is connected with the water inlet of cooling tower 28 with cooling water pipeline 30; Heat recovery heat exchanger The water inlet of 9 is connected with hot water tank 34 water outlets through check valve, valve, water pump, filter with hot water pipeline 33; Connect; the water inlet of the hot water heat exchanger 15 is connected with the water outlet of the hot water tank 34 through the circulating water pump 37 with the hot water pipe 33; connect.

Purification and pressurization wind cabinet B is provided with differential pressure controller 22, the second primary effect filter 23, blower unit 24, flow equalization device and medium effect filter 26; The outlet of the air volume control valve 25 is connected with the air return pipeline 5; the air volume control valve 27 is connected with the air volume control valve 4 with the clean air pipeline 6.

The cooling system C is provided with a cooling tower 28, a hydraulic scale removal and rust prevention device 29, a valve, a filter, and a water pump, and the supply water is connected to the cooling tower 28 through a valve; In the plate, the water outlet of cooling tower 28 is connected with the water inlet of condenser 7 through valve, filter, water pump with cooling water pipeline 30;

The waste heat utilization system D is equipped with a hot water tank 34, a mechanical filter 36, and a circulating water pump 37; the heat recovery heat exchanger 9 and the hot water heat exchanger 15 of the heat recovery constant temperature and humidity unit A pass through the hot water pipeline for supply water 33 is connected with the hot water tank 34 to form a circuit; the supply water is connected with the hot water tank 34 through a mechanical filter 36 and a valve; a water outlet of the hot water tank 34 is connected with a hot water pipe 33 through a valve, a water pump, a check valve and heat recovery The water inlet of the heat exchanger 9 is connected, the water return port of the hot water tank 34 is connected with the water outlet of the heat recovery heat exchanger 9 and the hot water heat exchanger 15 respectively, and the other water outlet of the hot water tank 34 is connected with a hot water pipe 33 After the valve, the circulating water pump 37 and the check valve, it is divided into two roads, one road is connected with the water inlet of the hot water heat exchanger 15 through the valve, and the other road is sent to the domestic water point through the valve.

The air-cooled heat exchange system E is equipped with an air-cooled heat exchanger 31 and a fan 32: the refrigerant pipeline 10 used for the refrigerant inlet of the air-cooled heat exchanger 31 is connected to the pipeline between the condenser 7 and the expansion valve 11 through a valve, and the air-cooled heat exchanger The refrigerant inlet of the heater 31 is connected with the pipeline between the evaporator 14 and the air return pipe of the compressor 8 through the valve through the refrigerant pipeline 10 .

The purification plant F of this energy-saving and environment-friendly purification air-conditioning system is equipped with return air louvers 1, return air shaft pipe 2, high-efficiency filter unit 3, and air volume regulating valve 4: the air volume regulating valve 4 passes through the clean air pipe 6 and purifies pressurized air cabinet B The air volume regulating valve 27 is connected to the air volume regulating valve 27; the return air shaft pipeline 2 is divided into two routes with the return air duct 5, one is connected with the air volume regulating valve 25 of the purifying pressurized air cabinet B, and the other is connected with the return air volume of the heat recovery constant temperature and humidity unit A Regulating valve 12 is connected.

Operation mode of the utility model energy-saving and environment-friendly purification air-conditioning system

1. The operation mode of the purification system: After the outdoor fresh air is mixed with the part of the return air from the purification plant input through the air volume control valve 12 through the air volume control valve 35, 40% of the dust larger than 5 microns is filtered through the first primary filter 13, and after evaporation After the device 14 is cooled (or heated), it enters the hot water heat exchanger 15 for heating and humidity control, and humidifies through the humidifier 16, and then is sent to the static pressure box 19 by the fan 17 through the air volume regulating valve 18, and the mixed wind is discharged in the static pressure box 19. Enter the 2nd initial effect filter 23 of purifying pressurization wind cabinet B through air supply pipeline 20, air volume regulating valve 21 after the medium steady pressure and filter out 40% again and be greater than the dust of 5 microns, then with the second coming from air volume regulating valve 25 After the secondary return air is mixed twice, it is sent to the medium-efficiency filter 26 by the pressurized fan 24 to filter out 80% of the dust greater than 5 microns, and then through the clean air duct 6 and the air volume control valve 4, it is sent to the high-efficiency filter in the purification plant. The filter unit 3 filters out 99% of the dust larger than 2 microns, and then sends it into the purification plant F for heat and moisture exchange. Send back the heat recovery constant temperature and humidity unit A and the purification and pressurization air cabinet B to form a wind system circulation.

2. Refrigeration system operation mode:

(1) Cooling operation mode: the system selects the cooling mode, the heat recovery constant temperature and humidity unit A is powered on, the compressor 8 runs, the refrigerant enters through the refrigerant pipeline 10, and passes through the heat recovery heat exchanger 9, condenser 7, and expansion valve 11 in sequence , Evaporator 14, compressor 8 air return pipes form a closed loop.

(2) Heating operation mode: the system selects the heating mode, the heat recovery constant temperature and humidity unit A is powered on, the compressor 8 runs, the refrigerant enters the refrigerant pipeline 10, and passes through the heat recovery heat exchanger 9, condenser 7, and expansion valve in sequence 11. The air-cooled heat exchanger 31 and the air return pipe of the compressor 8 form a closed loop.

(3), cooling system operation mode: the water pump of cooling system C runs, and the cold water in the cooling tower 28 water pan is sent to the condenser 7 through the purified water after the hydraulic cleaning and suction scale antirust device 29 descaling, sterilization, and algae elimination. Heat exchange, hot water returns to the cooling tower 28 for isenthalpic cooling, forming a cooling cycle. In winter, due to the low temperature, the water temperature can be lowered by natural cooling, so the cooling water system is stopped.

(4) Operation mode of the heat recovery system: the waste heat utilization system D is running, the supplementary water enters the hot water tank 34 through the mechanical filter 36, and the relatively low temperature water in the lower part of the hot water tank 34 passes through the heat recovery and heat exchange connected by the water pump and the hot water pipe 33 Device 9, hot water tank 34 form an endothermic cycle; hot water forms a heat release cycle through hot water tank 34, valves, circulating water pump 37, and hot water heat exchanger 15 connected by hot water pipe 33; hot water passes through hot water pipe 33 forms an open use system through a hot water tank 34, a valve, a circulating water pump 37, and domestic hot water water points.

The above-mentioned embodiment is only an example of the utility model, and is not used to limit the implementation of the utility model and the scope of rights. All equivalent changes and modifications made according to the content of the patent protection scope of the utility model application shall be included in this utility model. Within the scope of utility model patent application.

Claims (2)

1. An energy-saving and environment-friendly purification air-conditioning system, comprising a purification plant F and system connecting pipes, characterized in that it consists of a heat recovery constant temperature and humidity unit A, a purification and pressurization air cabinet B, a cooling system C, a waste heat utilization system D, The air-cooled heat exchange system E constitutes; where: -The heat recovery constant temperature and humidity unit A is provided with a condenser (7), a compressor (8), a heat recovery heat exchanger (9), an expansion valve (11), the first primary filter (13), Evaporator (14), hot water heat exchanger (15), humidifier (16), blower fan assembly (17) and flow equalization device; Outdoor fresh air is connected with air volume control valve (35) through pipeline, return air volume control valve ( 12) Connect the return air duct (5) with the return air shaft duct (2) of the purification plant F; The outlet of (8) is connected with the refrigerant inlet of the heat recovery heat exchanger (9) with the refrigerant pipeline (10); the refrigerant outlet of the heat recovery heat exchanger (9) is connected with the refrigerant pipeline (10) with the condenser (7) The refrigerant inlet connection; -Described purifying and pressurizing wind cabinet B is provided with differential pressure controller (22), the 2nd primary effect filter (23), blower unit (24), current equalizing device and intermediate effect filter (26); Air volume adjustment Valve (21) is connected with the outlet of static pressure box (19) with air supply pipe (20); -Described cooling system C is provided with cooling tower (28), hydraulic cleaning scale suction anti-rust device (29), valve, filter, water pump, feed water is connected with cooling tower (28) through valve, cooling tower (28) The water outlet of the cooling tower (28) is connected with the water inlet of the condenser (7) with the cooling water pipeline (30) through the valve, the filter, the water pump; outlet connection; -The waste heat utilization system D is provided with a hot water tank (34), a mechanical filter (36), a circulating water pump (37); The water heat exchanger (15) is connected to the hot water tank (34) through the hot water pipeline (33) for supply water to form a circuit; -The air-cooled heat exchange system E is provided with an air-cooled heat exchanger (31), a fan (32): the refrigerant inlet of the air-cooled heat exchanger (31) uses a refrigerant pipeline (10) through a valve and an expansion valve (11) ) and the pipeline connection between the hot water heat exchanger (15), the refrigerant inlet of the air-cooled heat exchanger (31) uses the refrigerant pipeline (10) between the valve and the return pipe of the evaporator (14) and the compressor (8) pipe connection between. 2. The energy-saving and environment-friendly purification air-conditioning system according to claim 1, characterized in that, said purification plant F is provided with return air shutters (1), return air shaft pipelines (2), high-efficiency filter units (3), Air volume regulating valve (4): the air volume regulating valve (4) is connected with the air volume regulating valve (27) of the purifying pressurized wind cabinet B through the clean air duct (6); the return air shaft duct (2) uses the return air duct (5) Divide into two roads, one road is connected with the air volume regulating valve (25) of purifying pressurized wind cabinet B, and the other road is connected with the return air volume regulating valve (12) of heat recovery constant temperature and humidity unit.

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