CN110260567A - A kind of spraying condenser, the cold refrigeration machine of evaporation, the cold air conditioner of evaporation and its application method - Google Patents

Abstract

The invention discloses a spray condenser, an evaporative cooling refrigerator, an evaporative cooling air conditioner and an application method thereof. The spray condenser comprises a gas-liquid heat exchanger with a transverse connecting channel, and the gas-liquid heat exchanger There is a forward spray assembly on the top, and a reverse spray assembly on the lower side of the horizontal connection channel. The water spray port of the reverse spray assembly faces the bottom of the horizontal connection channel. The spray condenser has a water supply assembly and forward and reverse spray The components are connected; the evaporative cooling refrigerator includes an evaporator assembly and a spray condenser; the evaporative air conditioner includes an air conditioner body with the aforementioned spray condenser and evaporator assembly; the application method of the evaporative air conditioner includes Control the evaporative cooling air conditioner to perform one of the multi-mode cooling operations. The invention can prevent the deterioration of the heat exchange performance caused by fouling of the condenser; it can greatly reduce the energy consumption of the air conditioner for the air conditioner system operating all the year round, ensure the safe operation of the system throughout the year, and break through the limitation of the application of the evaporative cooling technology.

Description

A spray condenser, evaporative cooling refrigerator, evaporative cooling air conditioner and its application method

technical field

The invention relates to air treatment equipment, in particular to a spray condenser, an evaporative cooling refrigerator, an evaporative cooling air conditioner and an application method thereof.

Background technique

According to the statistics of relevant departments, the electricity consumption of air-conditioning systems has reached more than 15% of the total electricity consumption of the whole society. Certain industries and places that generate large amounts of heat, require high temperature and humidity, and require refrigeration all year round account for as much as 40% of their energy consumption. %above. Therefore, the energy saving of air conditioning system is of great significance.

The energy consumption of the air conditioning system is composed of refrigeration energy consumption, refrigerant transmission energy consumption and fan energy consumption, and refrigeration energy consumption accounts for the highest proportion. The condenser is an important part in the refrigeration cycle. In addition to the form of the compressor, the cooling method of the condenser is highly related to the energy consumption and economy of the system. Air cooling system: the system is simple, but the cooling energy consumption is high, and the condenser is easy to corrode in the polluted environment; water cooling system: the compressor energy consumption is low, but the transportation energy consumption and water consumption are high, and it occupies a large area, the investment of the water system is large, and it is operated in winter Antifreeze needs to be added, which has a large leakage and is slightly toxic. Theoretically, the evaporative cooling method has the highest efficiency, and its modularity can have the advantages of both air-cooled and water-cooled systems, but the following two reasons limit its application.

1. The condenser is easy to foul and difficult to remove.

Currently commonly used tubular condensers, spray water from top to bottom to form a large area of back water surface, splashing water on the back water surface is easy to produce dry spots, forming serious scaling, reducing heat transfer efficiency and not easy to remove.

2. The use is limited by climatic conditions.

When the outdoor temperature drops to 0°C, the water mist in the exhaust air will easily cause the surface of the filter at the air outlet and air inlet to freeze, block the flow channel and make it impossible to operate normally, which means that in the north of the Yangtze River Basin and most of the Yangtze River Basin , the use of evaporative cooling technology for refrigeration in the above-mentioned occasions is limited.

Therefore, how to reduce the energy consumption of the air-conditioning system, especially the energy consumption of the above-mentioned air-conditioning system that runs all year round, and break through the application limitation of evaporative cooling technology has become a key technical problem that needs to be solved urgently.

Contents of the invention

Aiming at the above problems in the prior art, the present invention provides a spray condenser, an evaporative refrigerator, an evaporative air conditioner and an application method thereof. The spray condenser, the evaporative cooling refrigerator and the evaporative cooling air conditioner of the present invention comprise a reverse spray assembly arranged on the lower side of the horizontal connection channel, the water spray port of the reverse spray assembly is arranged upward, and the reverse spray assembly lowers the The possibility of fouling of the condenser is reduced, the risk of fouling at the bottom of the condenser and its horizontal connecting channels is reduced, and the heat exchange performance is prevented from deteriorating due to fouling of the condenser. The invention also provides an application method of the evaporative cooling air conditioner, which can realize six working modes adaptable to different climate conditions, ensure that the evaporative cooling air conditioner can adapt to different climates and different seasons, and make the energy consumption of the evaporative cooling air conditioner the lowest.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The invention provides a spray condenser, which comprises a gas-liquid heat exchanger with horizontal connecting passages on the upper and lower parts, a forward spray assembly is arranged above the gas-liquid heat exchanger, and the horizontal connecting passage A reverse spray assembly is provided on the lower side of the reverse spray assembly, and the water spray port of the reverse spray assembly is arranged upward.

The gas-liquid heat exchanger includes a frame and a plurality of plate heat exchange plates arranged in series, and the plurality of plate heat exchange plates are respectively fixed on the frame at specified distances, so that the interval between adjacent plate heat exchange plates is Form air flow channels; each plate heat exchange plate is provided with hollow guide areas at the upper and lower ends, and there are multiple hollow longitudinal flow channels connected between the guide areas at the upper and lower ends. The lower horizontal connection passage of the gas-liquid heat exchanger is a liquid supply pipe, the upper horizontal connection passage is a liquid collection pipe, the lower flow guide area of the plate heat exchange plate communicates with the liquid supply pipe, and the upper horizontal connection passage is connected with the liquid supply pipe. The diversion area communicates with the liquid collection pipe, and the reverse spray assembly is arranged on the lower side of the liquid supply pipe and/or the liquid collection pipe.

The outside of the gas-liquid heat exchanger has a closed shell, and the shell is respectively provided with an air inlet and an air outlet, and the air inlet is equipped with a filter, and the air outlet is equipped with at least one exhaust fan, A water supply assembly for supplying water to the forward spray assembly and the reverse spray assembly is installed in the housing.

The present invention also provides an evaporative cooling refrigerator, comprising a condenser, an evaporator assembly, a compressor and a throttle valve connected in sequence to form a refrigeration circuit, and the condenser is the aforementioned spray condenser.

The present invention also provides an evaporative cooling air conditioner, the evaporative cooling air conditioner includes an air conditioner body equipped with the aforementioned spray condenser.

The evaporative cooling air conditioner also includes an air-air heat exchanger, an evaporator assembly, a compressor, and a throttle valve. The air-air heat exchanger is a plate structure with cold air channels and hot air channels that are not connected to each other. The flow channel, the hot air side outlet of the air-air heat exchanger is connected to the hot air inlet of the evaporator assembly through a channel, and the evaporator assembly is one of the following two structures:

The first structure: the evaporator assembly is an evaporator, and the evaporator, compressor, spray condenser, throttle valve and connecting pipe form a refrigeration circuit;

The second structure: the evaporator assembly is composed of a chilled water pump, a surface cooler, and an evaporator. The chilled water pump, the surface cooler, the evaporator and connecting pipes form a chilled water circulation loop. The evaporator, compressor, sprayer A shower condenser, a throttle valve and connecting pipes form a refrigeration circuit.

The evaporative cooling air conditioner also includes a high-frequency oscillating atomizing device, and the high-frequency oscillating atomizing device is arranged in the channel before the cold air inlet of the air-air heat exchanger.

A first hot air side air valve and no less than one hot air side fan are arranged between the hot air side inlet of the air-air heat exchanger and the corresponding first hot air inlet c. A first cold air side air valve and no less than one cold air side fan are arranged between the cold air side outlet and the corresponding cold air outlet f, and the hot air side fan adopts a press-fit design so that the heat inside the air-air heat exchanger The air channel forms a positive pressure, and the cold air side fan adopts a suction design so that the cold air channel inside the air-air heat exchanger forms a negative pressure.

The evaporative cooling air conditioner includes a first hot air passage, a second hot air passage and a cold air passage;

The first hot air channel, including the channel between the hot air side inlet of the air-air heat exchanger and the first hot air inlet c, the hot air flow channel inside the air-air heat exchanger, and the air-air heat exchanger The passage between the outlet on the hot air side and the air supply port d, the passage between the outlet on the hot air side of the air-air heat exchanger and the air supply outlet d is provided with an evaporator assembly, a high-frequency oscillation humidifying device and at least one blower in sequence ;

The second hot air channel, including the first hot air channel meeting point connected in parallel between the hot air side outlet of the air-gas heat exchanger and the air inlet of the evaporator assembly, and the channel between the second hot air inlet e connected indoors , the second hot air channel is provided with a second air inlet and a second hot air side air valve;

The cold air channel, including the channel between the cold air side inlet of the air-air heat exchanger and the cold air inlet f, the cold air flow channel inside the air-air heat exchanger, and the cold air side of the air-air heat exchanger The channel between the outlet and the cold air outlet f, the cold air channel exchanges heat with the first hot air channel through the air-air heat exchanger, and the cold air channel is located at the cold air side inlet of the air-air heat exchanger The front end is equipped with an auxiliary heater, and the cold air channel is located between the cold air side outlet of the air-air heat exchanger and the cold air outlet f, and a second cold air side air valve is arranged in turn, and no less than one cold air side DC frequency conversion fan.

The evaporative cooling air conditioner also includes a hot air flow channel and an air return channel: the hot air flow channel is a channel connecting the hot air side inlet and the cold air side inlet of the air-air heat exchanger, and the hot air flow channel There is an electric air valve for hot air drainage; the air return channel is a channel connecting the outlet of the auxiliary heater and the air outlet of the DC frequency conversion fan on the cold wind side, and the air return channel is provided with an air return electric air valve.

The present invention provides an application method of the aforementioned evaporative cooling air conditioner, the evaporative cooling air conditioner is controlled to execute any one of the following first to sixth modes, and the first to sixth modes The targeted ambient temperature decreases in turn:

The first mode: the refrigeration circuit, spray condenser, and water supply components work, the gas-air heat exchanger and high-frequency oscillation atomization device do not work, the cold source is completely provided by the refrigeration circuit, and the indoor return air enters from the second hot air The air outlet e enters the second hot air channel, and the indoor return air flowing through is cooled by the refrigeration circuit, and then returns to the room through the air supply outlet d, keeping the sink drain valve of the water supply component closed;

The second mode: the refrigeration circuit, spray condenser, water supply components, gas-air heat exchanger and high-frequency oscillating atomization device work at the same time, the cold source is provided by the refrigeration circuit and the gas-gas heat exchanger, and the indoor return air comes from The first hot air inlet c enters the first hot air channel, and is first cooled by the air-air heat exchanger, and then the indoor return air flowing through it is cooled by the refrigeration circuit, and then returned to the room through the air supply port d, so as to keep the water tank of the water supply component drained valve closed;

The third mode: the refrigeration circuit, spray condenser, and water supply components do not work, the gas-gas heat exchanger and high-frequency oscillating atomization device work, the gas-gas heat exchanger provides a natural cold source, and the indoor return air comes from the second A hot air inlet c enters the first hot air channel, the indoor return air flowing through is cooled by the air-air heat exchanger, and then returns to the room through the air supply port d, keeping the sink drain valve of the water supply component closed;

The fourth mode: the refrigeration circuit, spray condenser, water supply components, and high-frequency oscillating atomization device are not working, and the gas-gas heat exchanger is working, and the gas-gas heat exchanger provides a natural cooling source; the indoor return air is from The first hot air inlet c enters the first hot air channel, the air-air heat exchanger cools the indoor return air flowing through it, and then returns to the room through the air supply port d, keeping the sink drain valve of the water supply component closed, and when the temperature drops to the specified When the critical freezing threshold of the water supply unit is reached, open the water tank drain valve of the water supply unit to prevent the water tank of the water supply unit from freezing;

The fifth mode: the refrigeration circuit, spray condenser, water supply components, and high-frequency oscillating atomization device are not working, the gas-gas heat exchanger is working, the electric air valve is opened to the specified opening, and part of the hot air is drained due to pressure difference To the air inlet channel before the inlet of the cold air side of the air-air heat exchanger, increase the temperature of the cold air inlet to prevent frost; the indoor return air enters the first hot air channel from the first hot air inlet c, and is provided by the air-air heat exchanger As a natural cold source, the air-air heat exchanger cools the indoor return air flowing through it and then returns to the room through the air supply port d, and opens the water tank drain valve of the water supply component to prevent the water tank of the water supply component from freezing;

Sixth mode: the refrigeration circuit, spray condenser, water supply components, and high-frequency oscillating atomization device are not working, the air-air heat exchanger and auxiliary heater are working, and the electric air valve for air return is opened to make the cold air side DC frequency conversion Part of the cold air exhausted from the fan outlet side flows back into the cold air inlet channel in front of the auxiliary heater outlet side, mixes with the cold air inlet and heats up, and then is heated by the auxiliary heater to prevent frost; the indoor return air is from the first heater. The air inlet c enters the first hot air channel, and the air-air heat exchanger provides a natural cold source, and the air-air heat exchanger cools the indoor return air flowing through it, and then returns to the room through the air supply port d, and opens the water tank of the water supply component Drain valve to prevent freezing of the sink in the water supply assembly.

Compared with the prior art, the spray condenser of the present invention has the following advantages: the spray condenser of the present invention is provided with a forward spray assembly and a reverse spray assembly, and the evaporative cooling efficiency is high, reducing the cost of mechanical refrigeration. Energy consumption; the reverse spray assembly reduces the risk of fouling at the bottom of the condenser and its horizontal connecting channels, and can prevent the deterioration of heat transfer performance caused by fouling.

Both the evaporative cooling refrigerator and the evaporative cooling air conditioner of the present invention include the spray condenser of the present invention, and therefore also have the aforementioned advantages of the spray condenser of the present invention. Moreover, in addition to the advantages of the aforementioned spray condenser of the present invention, the evaporative cooling air conditioner of the present invention further adopts a combination of an air-air heat exchanger, a high-frequency oscillation spray device and an evaporator assembly In the above-mentioned occasions where the air-conditioning system needs to be operated all year round, the natural cold source is used to greatly reduce the energy consumption of the air-conditioning system; when the outdoor temperature drops to around 0°C, the gas-air heat exchanger can obtain 100% of the natural cold source, It avoids the situation of turning on the refrigeration circuit for cooling at 0°C, thus breaking through the geographical restrictions of using evaporative air conditioners in the above scenarios. The design of the hot air side of the evaporative cooling air conditioner with double air inlets, double fans and double channels saves the conveying kinetic energy of the fans; the pressure difference design and the drainage channel of the cold and hot channels of the air-air heat exchanger can prevent penetration and frost; The invented evaporative cold air return channel saves energy when preventing frost in severe cold areas. High-frequency oscillating spray device and high-frequency oscillating humidifier are used, there is no water in the unit, no bacteria, no need to consider the antifreeze of the spray water system in winter, and the maintenance workload is reduced; the high-frequency oscillating humidifier is adopted, and the energy consumption ratio Dry humidification reduces about 85%, and can provide negative ions, which has the function of purifying air and improving air quality.

The application method of the evaporative cooling air conditioner of the present invention has the following advantages: the application method of the evaporative cooling air conditioner of the present invention controls the evaporative cooling air conditioner to execute any one of the first mode to the sixth mode, and the first The ambient air temperature targeted by the mode to the sixth mode decreases successively, has the aforementioned advantages of the evaporative cooling air conditioner and the spray condenser of the present invention, and can also ensure the normal operation of the evaporative cooling air conditioner throughout the year, so that each mode Energy consumption can be reduced to a minimum.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the spray condenser of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the spray condenser of the present invention.

Fig. 3 is a schematic structural view of another embodiment of the spray condenser of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of another embodiment of the spray condenser of the present invention.

Fig. 5 is a schematic diagram of an embodiment of the evaporative cooling air conditioner of the present invention.

Fig. 6 is a schematic diagram of another embodiment of the evaporative cooling air conditioner of the present invention.

Legend: 1. First hot air filter; 2. Air-air heat exchanger; 3. High-frequency oscillating atomization device; 4. Chilled water pump; 5. Surface cooler; 6. Auxiliary heater; 7. High Frequency oscillation humidification device; 8. Water tank; 9. Blower fan; 10. Filter; 11. Hot air side fan; 12. First hot air side air valve; 13. Fan; 14. Cold air side air valve; 15. Second air inlet ;16, the second hot air side air valve; 17, electric air valve; 18, the second hot air filter; 19, spray water pump; 20, water filter; 21, compressor; 22, gas-liquid heat exchanger ; 221, frame; 222, plate heat exchange plate; 223, diversion area; 224, longitudinal flow channel; 225, liquid supply pipe; 226, liquid collection pipe; 23, throttle valve; Exhaust fan; 26. Sink drain valve; 27. Forward spray assembly; 28. Reverse spray assembly; 29. Drip tray; 30. Water seal; 31. Stop valve; 32. Air return electric air valve.

Detailed ways

As shown in Figures 1 and 2, this embodiment provides a spray condenser, including a gas-liquid heat exchanger 22 with a horizontal connection channel on the upper and lower parts, and a positive air-liquid heat exchanger 22 is arranged above the gas-liquid heat exchanger 22. The reverse spray assembly 27 is arranged on the lower side of the transverse connecting channel, and the water spray port of the reverse spray assembly 28 is arranged upward (including directly above and obliquely above). The reverse spraying assembly 28 sprays water in reverse to the bottom of the gas-liquid heat exchanger 22, so that the water spraying operation scope also covers the bottom of the horizontal connecting channel in addition to the conventional spraying operation from top to bottom to form an all-round coverage. Scale can be prevented from forming on the bottom of the lateral connecting pipes, and the heat dissipation performance of the spray condenser can be prevented from deteriorating due to scaling.

As shown in Figures 1 and 2, the gas-liquid heat exchanger 22 includes a frame 221 and a plurality of plate heat exchange plates 222 arranged in series, and the plurality of plate heat exchange plates 222 are respectively fixed on the frame 221 at specified distances. , so that the adjacent plate heat exchange plates 222 are spaced to form air flow passages; the upper and lower ends of each plate heat exchange plate 222 are provided with hollow flow guide areas 223, and the flow guide areas at the upper and lower ends A plurality of hollow longitudinal passages 224 (not limited to linear structures) communicating with them are arranged between the regions 223, and the horizontal connection passages at the lower part of the gas-liquid heat exchanger 22 are liquid supply pipes 225 (see FIG. 1, inlet is a), the upper horizontal connection channel is the liquid collection pipe 226 (see Figure 1, the outlet is b), the flow guide area 223 at the lower end of the plate heat exchange plate 222 communicates with the liquid supply pipe 225, and the flow guide area 223 at the upper end and The liquid collection pipe 226 communicates, and the reverse spray assembly 28 is arranged on the lower side of the liquid supply pipe 225 and the liquid collection pipe 226 . Most of the existing gas-liquid heat exchangers are tubular structures that bend back and forth. There are a large number of backwater surfaces during spray cooling, and the heat transfer effect is not good. Splashing water forms dry spots on the backwater surfaces, causing serious scaling, and the scaling is difficult to remove. . The gas-liquid heat exchanger 22 in this embodiment includes a frame 221 and a plurality of plate heat exchange plates 222 arranged in series. During spray cooling, the water flow covers the plate heat exchange plates 222 from top to bottom, and the water passing area is larger, so that The heat exchange works better. The gas-liquid heat exchanger 22 adopts a plate structure, which greatly reduces the area of its back surface, reduces the possibility of fouling of the condenser, and can prevent the heat exchange performance from deteriorating due to fouling of the spray condenser.

Referring to FIG. 2 , in this embodiment, a reverse spray assembly 28 is provided at the left and right sides of the lower part of the liquid supply pipe 225 , and a reverse spray assembly 28 is provided at the lower part of the liquid collection pipe 226 . In addition, the reverse spray assembly 28 may also be selected to be arranged only on the lower side of the liquid supply pipe 225 or the liquid collection pipe 226 as required.

As an implementation, as shown in Figure 1 and Figure 2, the liquid supply pipe 225 and the liquid collection pipe 226 can adopt a structure directly connected to each plate heat exchange plate 222; in addition, as another implementation, the liquid supply The tube 225 and the liquid collecting tube 226 can also be connected to each plate heat exchange plate 222 through branch tubes, as shown in FIG. 3 and FIG. 4 .

Referring to Fig. 5, the outside of the gas-liquid heat exchanger 22 has a closed shell, and the shell is respectively provided with an air inlet and an air outlet, and the air inlet is equipped with a filter 10 (which can prevent sundries from entering the shell 13), and the air outlet At least one exhaust fan 25 is installed, and a water supply assembly for supplying water to the forward spray assembly 27 and the reverse spray assembly 28 is installed in the casing. The filter 10 and the exhaust fan 25 form a cooling assembly, and the ventilation accelerates the evaporation of the spray water, and the water evaporates and absorbs heat to reduce the temperature of the water and the air, thereby obtaining a better cooling effect. As shown in Figure 5, the water supply assembly includes a water tank 8, a spray water pump 19, a water filter 20, a water tank drain valve 26 and a shut-off valve 31, and the water inlet of the spray water pump 19 is communicated with the water tank 8 through the water filter 20, and the water outlet The pipes communicate with the forward spraying assembly 27 and the reverse spraying assembly 28 respectively, the water tank drain valve 26 is arranged on the drain pipe of the water tank 8 , and the shut-off valve 31 is arranged on the water inlet pipe of the water tank 8 . In order to prevent the water in the water tank 8 from freezing when the air temperature is low, the water tank drain valve 26 can be opened to discharge the water in the water tank 8 as required.

In addition, this embodiment also provides an evaporative cooling refrigerator, which includes a condenser, an evaporator assembly, a compressor 21 and a throttle valve 23 connected in sequence to form a refrigeration circuit. condenser.

As shown in FIG. 5 , this embodiment also provides an evaporative cooling air conditioner, which includes an air conditioner body on which the aforementioned spray condenser is installed. It should be noted that the evaporative cooling air conditioner can adopt either an integrated structure or a split structure (such as the part marked with box G in Fig. 5 and Fig. 6). Since the evaporative cooling air conditioner includes the above-mentioned spray condenser in this embodiment, the spray condenser is not easy to foul, and the condensation effect of using the spray condenser is better. As an implementation example, the evaporative cooling air conditioner in this embodiment adopts an integrated structure.

In this embodiment, the evaporative cooling air conditioner also includes an air-air heat exchanger 2, an evaporator assembly, a compressor 21, and a throttle valve 23, and the air-air heat exchanger 2 is a plate structure (larger heat exchange area, larger better thermal effect), the air-air heat exchanger 2 has a cold air flow channel and a hot air flow channel that are not connected to each other, and the hot air side outlet of the air-air heat exchanger 2 passes through the channel and the hot air inlet of the evaporator assembly Connected, the evaporator assembly is one of the following two structures:

The first structure: referring to Fig. 5, the evaporator assembly is an evaporator 24, and the evaporator 24, a compressor 21, a spray condenser, a throttle valve 23 and connecting pipes form a refrigeration circuit;

The second structure: see Figure 6, the evaporator assembly is composed of the chilled water pump 4, the surface cooler 5 and the evaporator 24, the chilled water pump 4, the surface cooler 5, the evaporator 24 and the connecting pipes form a chilled water circulation loop, the evaporator 24 , a compressor 21, a spray condenser, a throttle valve 23 and connecting pipes form a refrigeration circuit.

The evaporative air conditioner of this embodiment also includes a high-frequency oscillating atomizing device 3 , and the high-frequency oscillating atomizing device 3 is arranged in the channel before the cold air inlet of the air-air heat exchanger 2 . Utilize the high-frequency oscillating atomization device 3 to spray to the cold air channel, the water mist evaporates and absorbs heat, which reduces the temperature of the cold air and the heat exchange wall, enhances the heat exchange efficiency of the cold and hot air, and prolongs the time of using the natural cold source. The high-frequency oscillating atomizing device 3 has the characteristics of extremely low energy consumption, uniform humidification, and high sensitivity. The 1~5μm ultra-fine water particles produced by the high-frequency oscillating atomizing device can evaporate instantly without causing water accumulation in the unit. To avoid the breeding of bacteria, there is no need to consider the antifreeze of the sprinkler system during shutdown in winter, which reduces the maintenance workload.

The evaporative cooling air conditioner of this embodiment is equipped with an air-air heat exchanger 2 and an evaporator assembly at the same time, the two can be combined to form a variety of different cooling methods for hot air, and can be further combined with the high-frequency oscillating atomization device 3 Whether it is working or not, more cooling methods can be implemented for hot air, so the air conditioner can be controlled to operate in different modes according to changes in weather conditions, and the natural cold source can be used to the maximum extent while ensuring safe operation, thereby greatly reducing Air-conditioning system energy consumption; the above-mentioned occasions that need to run the air-conditioning system all year round, using this combination of cooling methods, can use more efficient evaporative cooling technology to reduce cooling energy consumption in summer, and when the temperature drops to about 0°C in winter, gas-gas cooling can be used The heat exchanger 2 obtains 100% of the natural cold source, avoiding the need to turn on the refrigeration circuit for cooling at 0°C, thereby breaking through the geographical limitation of using the evaporative cooling air conditioner of this embodiment in the above scenarios.

In this embodiment, the inlet/outlet of the cold air side and the inlet/outlet of the hot air side of the air-air heat exchanger 2 are connected to the integrated box of the air conditioner body through a partition, and the inlet and outlet of the cold and hot air, the partition The integrated box with the air conditioner body has 4 small chambers, which have the effect of stabilizing the airflow.

As shown in Figure 5, a first hot air side air valve 12 and no less than one hot air side blower 11 are arranged between the hot air side inlet of the air-air heat exchanger 2 and the corresponding first hot air inlet c. A first cold air side air valve 14 and no less than one cold air side fan 13 are arranged between the cold air side outlet of the air heat exchanger 2 and the corresponding cold air outlet f, and the hot air side fan 11 adopts a press-fit design so that the air- The hot air passage inside the air heat exchanger 2 forms a positive pressure, and the cold air side fan 13 adopts a suction design to make the cold air passage inside the air-air heat exchanger 2 form a negative pressure. Through the above structure, the air-air exchange The pressure difference formed between the hot air passage and the cold air passage of the heater 2 can prevent outdoor air from infiltrating in a polluted environment, and is also beneficial to reduce unnecessary energy consumption.

As shown in Figure 5, the evaporative cooling air conditioner includes a first hot air passage, a second hot air passage and a cold air passage;

The first hot air passage includes the passage between the hot air side inlet of the air-air heat exchanger 2 and the first hot air inlet c, the hot air passage inside the air-air heat exchanger 2, and the air-air heat exchange The channel between the outlet of the hot air side of the device 2 and the air outlet d, the channel between the outlet of the hot air side of the air-gas heat exchanger 2 and the outlet d is provided with an evaporator assembly, a high frequency oscillation humidifying device 7 and at least A blower 9; in the present embodiment, the first hot air channel is also provided with a first hot air filter 1 after the first hot air inlet c, which has ensured that the hot air returning to the room is clean; because the hot air passes through the first hot air After the passage, the humidity will decrease due to the refrigeration of the refrigeration circuit. The high-frequency oscillation humidifier 7 can be used to humidify the hot air adaptively to keep the humidity of the indoor air constant. The high-frequency oscillation humidifier 7 has extremely low energy consumption and uniform humidification. , high sensitivity, can also produce negative ions to purify the air, improve air quality, and purify the air. The 1~5μm ultra-fine water particles produced by its high-frequency oscillating atomization device can evaporate instantly without causing water accumulation in the unit, avoiding Breeding bacteria, there is no need to consider the antifreeze of the sprinkler system in winter, which reduces the maintenance workload, and the energy consumption is 85% to 90% lower than that of traditional dry humidification.

The second hot air channel, including the intersection of the first hot air channel connected in parallel between the hot air side outlet of the air-gas heat exchanger 2 and the air inlet of the evaporator assembly, and between the second hot air inlet e connected to the room channel, the second hot air channel is provided with a second air inlet 15 and a second hot air side air valve 16; in this embodiment, the second hot air channel is also provided with a second hot air channel after the second hot air inlet e filter 18 to ensure the cleanliness of the hot air returning to the room; when the air-air heat exchanger 2 is not working, the air is sent to the air outlet d through the second hot air channel, the system resistance is smaller, and the fan consumes more energy. Low;

The cold air passage includes the passage between the cold air side inlet of the air-air heat exchanger 2 and the cold air inlet f, the cold air passage inside the air-air heat exchanger 2, and the air-air heat exchanger 2 The channel between the cold air side outlet and the cold air outlet f, the cold air channel is located at the front end of the cold air side inlet of the air-air heat exchanger 2 and is provided with an auxiliary heater 6, and the cold air channel is located at the end of the air-air heat exchanger 2 A second cold air side air valve 14 and no less than one cold air side DC frequency conversion fan 13 are sequentially arranged between the cold air side outlet and the cold air outlet f. The cold and hot air are respectively subjected to indirect heat exchange in the cold and hot air passages inside the air-air heat exchanger 2 to obtain a natural cold source and reduce cooling energy consumption. Turning on the auxiliary heater 6 in severe cold weather can prevent the hot air side inlet of the air-air heat exchanger 2 from freezing, blocking the flow path or even destroying the equipment. Because the auxiliary heater 6 has a small heating area, the overall energy consumption is not high. In order to achieve further energy saving, waste heat can be used first (especially suitable for factories with waste heat output).

As shown in Figure 5, the evaporative cooling air conditioner also includes a hot air drainage channel and an air return channel:

The hot air drainage channel is a channel connecting the hot air side inlet and the cold air side inlet of the air-air heat exchanger 2, and the hot air drainage channel is provided with a hot air drainage electric damper 17 for controlling the on-off of the hot air drainage channel and opening. Using the pressure difference between the hot air inlet side channel and the cold air inlet side channel of the air-air heat exchanger 2, guide the hot air to flow from the hot air inlet side channel of the air-air heat exchanger 2 to the cold air inlet side channel, Raise the temperature of cold air without heat consumption to achieve the purpose of anti-frost, suitable for use in cold areas.

The air return passage is a passage between the outlet of the auxiliary heater 6 and the air outlet of the cold air side DC frequency conversion fan 13, and the air return passage is provided with an air return electric damper 32, which is used to control the on and off of the air return passage and opening. The cold air has a certain temperature rise after exchanging heat with the hot air through the air-air heat exchanger. In severe cold areas, the positive pressure of the air outlet of the DC frequency conversion fan 13 on the cold wind side is used to return part of the heated cold air to the cold air inlet channel. , mixed with the cold air to increase the inlet temperature of the cold air, used in conjunction with the auxiliary heater 6 in severe cold areas to reduce energy consumption and prevent frost.

In this embodiment, the lower part of the gas-gas heat exchanger 2 and the evaporator assembly (evaporator 24 or surface cooler 5) is provided with a drip pan 29, through which a small amount of condensed water can be received, and the drip pan 29 With a water seal 30, the drip tray 29 has a slope towards the water seal 30, which can realize uninterrupted drainage.

To sum up, the evaporative cooling air conditioner of this embodiment, in addition to the aforementioned: use the aforementioned spray condenser to prevent fouling, enhance heat exchange efficiency, and reduce refrigeration energy consumption; - Air heat exchanger, high-frequency oscillating spray device, and evaporator combined cooling method, obtain natural cooling source and greatly reduce cooling energy consumption; through the conversion of multiple operating modes, it can ensure the safe operation of the air conditioner throughout the year and in each mode The operating energy consumption is low, and it breaks through the application limitation of evaporative cooling air conditioners. It also has the following advantages: the hot air side of the air conditioner adopts the design of double air inlet, double fan and double flow channel, which saves the conveying kinetic energy of the fan; the pressure difference design of the cold and hot channels of the air-air heat exchanger can prevent penetration and guide hot air to prevent frost; Air return channels save energy when protecting against frost in severe cold regions. Using high-frequency oscillating spray and humidification, there is no water in the unit, avoiding the growth of bacteria, no need to drain and prevent freezing during shutdown in winter, and reducing maintenance workload; using high-frequency oscillating humidifier, its energy consumption is about 85% lower than that of dry humidification, which can provide Negative ions purify the air and improve air quality.

This embodiment provides an application method of the aforementioned evaporative cooling air conditioner. The evaporative cooling air conditioner is controlled to execute any one of the following first to sixth modes, and the environments targeted by the first to sixth modes The temperature decreases in order:

The first mode: the refrigeration circuit, spray condenser, and water supply components work, the gas-gas heat exchanger 2 and the high-frequency oscillating atomization device 3 do not work, the cold source is completely provided by the refrigeration circuit, and the indoor return air is from the second heat source. The air inlet e enters the second hot air channel, and the indoor return air flowing through is cooled by the refrigeration circuit, and then returns to the room through the air supply port d, keeping the sink drain valve 26 of the water supply assembly closed;

The second mode: the refrigeration circuit, the spray condenser, the water supply assembly, the air-air heat exchanger 2 and the high-frequency oscillating atomization device 3 work at the same time, and the refrigeration circuit and the air-air heat exchanger 2 jointly provide the cold source, indoor The return air enters the first hot air channel from the first hot air inlet c, and is first cooled by the air-air heat exchanger 2, and then the indoor return air flowing through the refrigeration circuit is cooled and returned to the room through the air supply port d to maintain the water supply The sink drain valve 26 of the assembly is closed;

The third mode: the refrigeration circuit, spray condenser, and water supply components do not work, the gas-gas heat exchanger 2 and the high-frequency oscillating atomization device 3 work, the gas-gas heat exchanger 2 provides a natural cold source, and the indoor return The wind enters the first hot air channel from the first hot air inlet c, and the air-air heat exchanger 2 cools the indoor return air flowing through it, and then returns to the room through the air supply port d, keeping the sink drain valve 26 of the water supply component closed;

The fourth mode: the refrigeration circuit, spray condenser, water supply components, and high-frequency oscillating atomization device 3 are not working, and the gas-gas heat exchanger 2 is working, and the gas-gas heat exchanger 2 provides a natural cold source; indoor The return air enters the first hot air channel from the first hot air inlet c, the air-air heat exchanger 2 cools the indoor return air flowing through it, and then returns to the room through the air supply port d, keeping the sink drain valve 26 of the water supply component closed, and When the air temperature drops to the designated freezing critical threshold, the water tank drain valve 26 of the water supply assembly is opened to prevent the water tank 8 of the water supply assembly from freezing;

The fifth mode: the refrigeration circuit, the spray condenser, the water supply component, and the high-frequency oscillating atomization device 3 are not working, the gas-gas heat exchanger 2 is working, the electric air valve 17 is opened to the specified opening, and part of the hot air is caused by The pressure difference is diverted to the air inlet channel in front of the cold air side inlet of the air-air heat exchanger 2, and the temperature of the cold air inlet is raised to prevent frost; the indoor return air enters the first hot air channel from the first hot air inlet c, and the The heat exchanger 2 provides a natural cold source, and the air-air heat exchanger 2 cools the indoor return air flowing through it and then returns to the room through the air outlet d, and opens the water tank drain valve 26 of the water supply component to prevent the water tank 8 of the water supply component from freezing ;

The sixth mode: the refrigeration circuit, the spray condenser, the water supply assembly, and the high-frequency oscillating atomization device 3 are not working, the air-air heat exchanger 2 and the auxiliary heater 6 are working, and the air return electric air valve 32 is opened, so that Part of the cold air exhaust on the air outlet side of the DC frequency conversion fan 13 on the cold wind side flows back into the cold air inlet channel in front of the outlet side of the auxiliary heater 6, mixes with the cold air inlet and heats up, and then is heated by the auxiliary heater 6 to prevent frost; The indoor return air enters the first hot air passage from the first hot air inlet c, and the air-air heat exchanger 2 provides a natural cold source, and the air-air heat exchanger 2 cools the indoor return air flowing through it and then passes through the air outlet d return to the room, open the water tank drain valve 26 of the water supply assembly to prevent the water tank 8 from freezing.

The first mode to the sixth mode of this embodiment can realize the coverage of all regions and all climate conditions: high temperature weather, medium temperature weather, medium and low temperature weather, low temperature weather, cold weather (about -5~-10°C), and severe cold weather. Therefore, the evaporative cooling air conditioner of this embodiment breaks through the geographical limitation of using the evaporative cooling air conditioner in the scene, and can ensure that the evaporative cooling air conditioner of this embodiment can achieve maximum consumption reduction in any working mode. In this embodiment, The first mode to the sixth mode are actually a variety of modes that can be switched step by step from summer to winter. The above-mentioned modes can be switched manually through preset methods, and can be further designed into fully intelligent automatic switching methods according to needs.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of spraying condenser, there is the gas liquid exchanger (22) in lateral connection channel including upper and lower part, the solution-air is changed The top of hot device (22) is equipped with positive spray assemblies (27), it is characterised in that: the downside in the lateral connection channel is equipped with reverse The water jet of spray assemblies (28), the inversely spraying component (28) is upwardly disposed.

2. spraying condenser according to claim 1, it is characterised in that: the gas liquid exchanger (22) includes rack (221) it is respectively separated distance to a declared goal with the board-like heat exchanger plates of muti-piece (222) of concatenation arrangement, the board-like heat exchanger plates of muti-piece (222) and fixes On rack (221), so that interval forms air flow channel between adjacent plate-type heat-exchange plate (222)；Every block of plate-type heat-exchange plate (222) upper/lower terminal in is equipped with hollow guiding region (223), and be equipped between the guiding region (223) of upper/lower terminal A plurality of hollow longitudinal runner (224), the lateral connection channel of gas liquid exchanger (22) lower part be liquid supply pipe (225), on The lateral connection channel in portion is collector tube (226), the guiding region (223) of the lower end of the plate-type heat-exchange plate (222) and liquid supply pipe (225) connection, upper end guiding region (223) be connected to collector tube (226), the inversely spraying component (28) is set on liquid supply pipe (225) and/or the downside of collector tube (226).

3. spraying condenser according to claim 1, it is characterised in that: the external tool of the gas liquid exchanger (22) There is closed shell, air inlet and air outlet is respectively equipped on the shell, and the air inlet is equipped with filter (10), institute State air outlet and an at least exhaust blower (25) be installed, be equipped in the shell for the positive spray assemblies (27), The water supply component that inversely spraying component (28) is supplied water.

4. a kind of cold refrigeration machine of evaporation, including being sequentially connected the condenser to form refrigerating circuit, evaporator assemblies, compressor (21) And throttle valve (23), it is characterised in that: the condenser is spraying condenser described in any one of claims 1 to 3.

5. a kind of cold air conditioner of evaporation, it is characterised in that: the cold air conditioner of evaporation includes being equipped in claims 1 to 3 to appoint The air conditioner ontology of spraying condenser described in meaning one.

6. the cold air conditioner of evaporation according to claim 5, which is characterized in that the cold air conditioner of evaporation further includes gas-gas Heat exchanger (2), evaporator assemblies, compressor (21) and throttle valve (23), the gas-to-gas heat exchanger (2) are plank frame Heat exchanger, the gas-to-gas heat exchanger (2) have not connected cold air flow passage and hot-air runner, the gas-to-gas heat exchanger (2) warm air side outlet is connected by channel with the hot-air inlets of evaporator assemblies, and the evaporator assemblies are following two One of kind structure:

The first structure: the evaporator assemblies are evaporator (24), and the evaporator (24), compressor (21), fountain are cold Condenser, throttle valve (23) and connecting tube form refrigerating circuit；

Second of structure: the evaporator assemblies are made of chilled water pump (4), surface air cooler (5) and evaporator (24), the freezing Water pump (4), surface air cooler (5) and evaporator (24) and connecting tube form freezing water-flow circuit, the evaporator (24), compressor (21), spraying condenser, throttle valve (23) and connecting tube form refrigerating circuit.

7. the cold air conditioner of evaporation according to claim 6, which is characterized in that the cold air conditioner of evaporation further includes high frequency vibrating It swings atomising device (3), the high frequency oscillation atomizer (3) is arranged in the channel before the cool air inlet of gas-to-gas heat exchanger (2) It is interior.

8. the cold air conditioner of evaporation according to claim 7, which is characterized in that the warm air side of the gas-to-gas heat exchanger (2) The first hot wind crosswind valve (12) and a no less than hot wind crosswind machine are provided between the first corresponding hot-air inlets c of entrance (11), the first cold wind side is provided between the corresponding cold-air vent f of the cold air side outlet of the gas-to-gas heat exchanger (2) Air-valve (14) and no less than a cold wind crosswind machine (13), the hot wind crosswind machine (11) is using forced design so that gas-gas The internal hot-air runner of heat exchanger (2) forms positive pressure, and the cold wind crosswind machine (13) is designed using suction-type so that gas-gas is changed The internal cold air flow passage of hot device (2) forms negative pressure.

9. the cold air conditioner of evaporation according to claim 8, which is characterized in that the cold air conditioner of evaporation includes that the first heat is empty Gas channel, the second hot-air channel, cold air channel, hot wind drainage channel and air return plenum:

First hot-air channel, channel between hot wind side entrance and the first hot-air inlets c including gas-to-gas heat exchanger (2), Between the internal hot-air runner of gas-to-gas heat exchanger (2) and the hot wind side outlet and air outlet d of gas-to-gas heat exchanger (2) Channel is successively arranged evaporator assemblies, height on the channel between the hot wind side outlet and air outlet d of the gas-to-gas heat exchanger (2) Frequency vibration swings humidifier (7) and at least a pressure fan (9)；

Second hot-air channel, including being connected in parallel between the hot wind side outlet and evaporator assemblies air inlet of gas-to-gas heat exchanger (2) The first hot-air channel joint, indoor connection the second hot-air air inlet e between channel, second hot-air is logical Road is equipped with the second air inlet (15) and the second hot wind crosswind valve (16)；

Cold air channel, channel, gas-gas between cold air side entrance and inlet of cold air f including gas-to-gas heat exchanger (2) Between the internal cold air flow passage of heat exchanger (2) and the cold air side outlet and cold-air vent f of gas-to-gas heat exchanger (2) Channel, the cold air channel are exchanged heat by gas-to-gas heat exchanger (2) with the first hot-air channel, the cold air channel Auxiliary heater (6) are equipped with positioned at the cold air side entrance front end of gas-to-gas heat exchanger (2), the cold air channel is located at gas-gas The second cold wind crosswind valve (14), no less than one are successively arranged between the cold air side outlet and cold-air vent f of heat exchanger (2) Cold wind side DC frequency-changing blower (13)；

The hot wind drainage channel is to be connected to leading between the warm air side entrance and cold air side entrance of gas-to-gas heat exchanger (2) Road, and the hot wind drainage channel is equipped with hot wind drainage Electric air valve (17)；

The air return plenum is the outlet for connecting auxiliary heater (6), the air outlet of cold wind side DC frequency-changing blower (13) Between channel, and the air return plenum be equipped with air return Electric air valve (32).

10. the application method of the cold air conditioner of evaporation described in a kind of claim 9, which is characterized in that the cold air conditioner quilt of evaporation Control is executes any one in following first mode~the 6th modes, and the first mode~the 6th mode is targeted Ambient air temperature successively reduces:

First mode: refrigerating circuit, spraying condenser, water supply component work, gas-to-gas heat exchanger (2) and higher-order of oscillation atomization Device (3) does not work, and provides cold source by refrigerating circuit completely, and indoor return air enters the second heat sky from the second hot-air air inlet e Gas channel is indoor by air outlet d return after being cooled down by refrigerating circuit to the indoor return air flowed through, keeps water supply component Drain valve of wash tank (26) is closed；

Second mode: refrigerating circuit, spraying condenser, water supply component, gas-to-gas heat exchanger (2) and high frequency oscillation atomizer (3) it works at the same time, provides cold source jointly by refrigerating circuit and gas-to-gas heat exchanger (2), indoor return air is from the first hot-air inlets c Into the first hot-air channel, first cooled down by gas-to-gas heat exchanger (2), then through refrigerating circuit to the indoor return air flowed through into Interior is returned to by air outlet d after row is cooling, the drain valve of wash tank (26) of water supply component is kept to close；

The third mode: refrigerating circuit, spraying condenser, water supply component do not work, gas-to-gas heat exchanger (2) and higher-order of oscillation mist (3) work is set in makeup, provides natural cold source by gas-to-gas heat exchanger (2), indoor return air enters first from the first hot-air inlets c Hot-air channel returns to indoor, holding by air outlet d after being cooled down by gas-to-gas heat exchanger (2) to the indoor return air flowed through The drain valve of wash tank (26) of water supply component is closed；

Fourth mode: refrigerating circuit, spraying condenser, water supply component, high frequency oscillation atomizer (3) do not work, gas-gas Heat exchanger (2) work provides natural cold source by gas-to-gas heat exchanger (2)；Indoor return air enters first from the first hot-air inlets c Hot-air channel, gas-to-gas heat exchanger (2) return to indoor, holding confession by air outlet d after cooling down to the indoor return air flowed through The drain valve of wash tank (26) of water assembly is closed, and when temperature is down to specified icing threshold limit value, opens the water of water supply component Slot drain valve (26) is to prevent the sink (8) of water supply component from freezing；

5th mode: refrigerating circuit, spraying condenser, water supply component, high frequency oscillation atomizer (3) do not work, gas-gas Heat exchanger (2) work, Electric air valve (17) open specified aperture, and part hot-air is drained to gas-to-gas heat exchanger (2) because of pressure difference Cold wind side entrance before air intake passage, promoted cool air inlet temperature frost protection；Indoor return air from the first hot-air inlets c into Enter the first hot-air channel, provide natural cold source by gas-to-gas heat exchanger (2), the interior flowed through is returned by gas-to-gas heat exchanger (2) Wind carries out returning to interior by air outlet d after cooling down, and opens the drain valve of wash tank (26) of water supply component to prevent water supply component Sink (8) freezes；

6th mode: refrigerating circuit, spraying condenser, water supply component, high frequency oscillation atomizer (3) do not work, gas-gas Heat exchanger (2), auxiliary heater (6) work, air return Electric air valve (32) is opened, so that cold wind side DC frequency-changing blower (13) in the cold air air intake passage before the part cold air exhaust gas recirculation of air outlet side to auxiliary heater (6) outlet side, with Frost protection is heated through auxiliary heater (6) again after cold air air inlet mixing heating；Indoor return air enters from the first hot-air inlets c First hot-air channel provides natural cold source by gas-to-gas heat exchanger (2), by gas-to-gas heat exchanger (2) to the indoor return air flowed through It carries out returning to interior by air outlet d after cooling down, opens the drain valve of wash tank (26) of water supply component to prevent the water of water supply component Slot (8) freezes.