CN213984117U - Indoor radiant type cooling system in summer - Google Patents
Indoor radiant type cooling system in summer Download PDFInfo
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- CN213984117U CN213984117U CN202120060561.6U CN202120060561U CN213984117U CN 213984117 U CN213984117 U CN 213984117U CN 202120060561 U CN202120060561 U CN 202120060561U CN 213984117 U CN213984117 U CN 213984117U
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Abstract
The utility model provides a summer indoor radiation type cooling system and a control method thereof, comprising a heat exchange device and a radiation refrigerating device, wherein the heat exchange device comprises a first compressor, a gas-liquid separator, a four-way valve, a fin type heat exchanger, a first expansion valve, a filter, a liquid storage device, a sleeve type heat exchanger and a shell and tube type heat exchanger; the radiation refrigeration device comprises a ceiling radiation plate and a wall radiation plate, wherein the ceiling radiation plate and the wall radiation plate are connected in parallel between a shell pass water inlet and a shell pass water outlet of the shell-and-tube heat exchanger; the fresh air device comprises a fresh air precooling device, a fresh air dehumidifying device, a fresh air reheating device, a wet film humidifying device and an air supply device, and an air outlet of the fresh air precooling device is sequentially connected with the fresh air dehumidifying device, the fresh air reheating device, the wet film humidifying device and the air supply device. The utility model discloses can realize the multi-functional cooling of unit and room humidity requirement through different control logic modes to the different humiture differences in use place.
Description
Technical Field
The utility model relates to a cooling system, concretely relates to indoor radiant type cooling system in summer.
Background
With the development of economic technology in China, the demand and consumption of energy are gradually increased, researches find that the building field is one of the important main bodies of energy consumption, in the building energy consumption, the proportion of a cooling and heating system and a domestic hot water system is close to 60%, and with the improvement of the living standard of people, the energy consumption of the building cooling and heating system is in a continuously rising trend, so that the realization of high efficiency and energy conservation is particularly important.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an indoor radiant type cooling system in summer, cold volume utilization ratio is retrieved to the residual cooling, and radiation refrigeration and new trend dehumidification combined operation effectively prevent radiation refrigeration's dewfall problem.
In order to solve the technical problem, an embodiment of the utility model provides an indoor radiant type cooling system in summer, including heat transfer device and radiation refrigerating plant, heat transfer device includes first compressor, vapour and liquid separator, cross valve, finned heat exchanger, first expansion valve, filter, reservoir, double-pipe heat exchanger and shell and tube heat exchanger, the high temperature refrigerant export of first compressor links to each other through the tube side import of cross valve and shell and tube heat exchanger, the tube side export of shell and tube heat exchanger links to each other with the import of reservoir, the export of reservoir connects finned heat exchanger through first expansion valve and filter, the low temperature refrigerant export of finned heat exchanger loops through cross valve and vapour and liquid separator and links to each other with the backward flow mouth of first compressor; the double-pipe heat exchanger is connected in parallel to a pipeline between the shell-and-tube heat exchanger and the liquid reservoir;
the radiation refrigerating device comprises a ceiling radiation plate and a wall radiation plate, wherein the ceiling radiation plate and the wall radiation plate are connected in parallel between a shell pass water inlet and a shell pass water outlet of the shell-and-tube heat exchanger.
The summer indoor radiation type cooling system further comprises a fresh air device, the fresh air device comprises a fresh air precooling device, a fresh air dehumidifying device, a fresh air reheating device, a wet film humidifying device and an air supply device, and an air outlet of the fresh air precooling device is sequentially connected with the fresh air dehumidifying device, the fresh air reheating device, the wet film humidifying device and the air supply device.
The ceiling radiation plate and the wall radiation plate are respectively connected with a shell pass water inlet and a shell pass water outlet of the shell-and-tube heat exchanger through respective water dividing and collecting devices.
Wherein, the water inlet and the water outlet of the double-pipe heat exchanger are respectively connected with a water supply device through a water supply pipe and a water return pipe.
Furthermore, the fresh air device also comprises a second compressor and a second expansion valve, and the second compressor, the fresh air reheating device, the second expansion valve and the fresh air dehumidifying device are in circulating connection.
Preferably, the fresh air reheating device adopts a fin reheater, the fresh air dehumidifying device adopts a fin evaporator, the fresh air precooling device adopts a fin precooler, and the wet film humidifying device adopts a wet film humidifier.
The pipeline between the shell and tube heat exchanger and the liquid reservoir is provided with a No. 20 electromagnetic valve, the pipeline between the front side of the No. 20 electromagnetic valve and the double-pipe heat exchanger is provided with a No. 2 electromagnetic valve, and the pipeline between the rear side of the No. 20 electromagnetic valve and the double-pipe heat exchanger is provided with a No. 1 electromagnetic valve;
a water outlet pipe of the shell-and-tube heat exchanger is provided with a No. 10 electromagnetic valve, and a water return pipe is provided with a No. 11 electromagnetic valve;
a No. 13 electromagnetic valve is arranged on a pipeline between the front side of the No. 10 electromagnetic valve and the water inlet of the wall radiation plate, and a No. 12 electromagnetic valve is arranged on a pipeline between the water outlet of the wall radiation plate and the front side of the No. 11 electromagnetic valve;
no. 15 solenoid valves are arranged on pipelines between the front sides of the No. 10 solenoid valves and the water inlet of the ceiling radiation plate, and No. 14 solenoid valves are arranged on pipelines between the water outlet of the ceiling radiation plate and the front sides of the No. 11 solenoid valves.
A No. 3 electromagnetic valve is arranged on a pipeline between the inlet of the fresh air precooling device and the outlet of the double-pipe heat exchanger, and a No. 4 electromagnetic valve is arranged on a pipeline between the outlet of the fresh air precooling device and the inlet of the double-pipe heat exchanger;
a No. 8 electromagnetic valve is arranged on a pipeline between the outlet of the fresh air reheating device and the inlet of the fresh air dehumidifying device, and a No. 7 electromagnetic valve is arranged on a pipeline between the front side of the No. 8 electromagnetic valve and the outlet of the double-pipe heat exchanger;
and a No. 9 electromagnetic valve is arranged on a water supply pipe of the wet film humidifying device.
Wherein, a No. 18 electromagnetic valve is arranged on the water return pipe of the double-pipe heat exchanger, and a No. 19 electromagnetic valve is arranged on the water supply pipe.
The indoor radiation type cooling system in summer has the outdoor environment temperature T0>And (2) starting summer ceiling radiation and wall radiation refrigeration modes at the temperature of 30 ℃, and comprising the following steps of:
(1) high-temperature refrigerant discharged by the first compressor enters the finned heat exchanger through the four-way valve for heat exchange, is throttled and decompressed through the first expansion valve, then flows into the double-pipe heat exchanger through the filter and the liquid storage device for primary heat exchange, then enters the tube side of the shell-and-tube heat exchanger for heat exchange with water to be cooled in the shell side of the shell-and-tube heat exchanger to generate 18 ℃ high-temperature cold water, and enters the ceiling radiation plate and the wall radiation plate through the pipeline for cooling;
(2) the refrigerant in the tube side of the shell-and-tube heat exchanger returns to the first compressor after passing through the four-way valve and the gas-liquid separator;
(3) and (3) circulating refrigeration based on the steps (1) and (2).
Wherein, the step (1) comprises the following specific steps:
(1-1) outdoor ambient temperature T0>30 ℃ and relative humidity>When 60%, open summer furred ceiling radiation and wall body radiation refrigeration mode and new trend and handle the mode, including following step:
(1-1-1) residual cooling recovery process: high-temperature refrigerant steam discharged by the first compressor exchanges heat with the finned heat exchanger through the four-way valve, is throttled and depressurized through the first expansion valve, then sequentially flows through the filter and the liquid accumulator, and then exchanges heat with the primary heat of the double-pipe heat exchanger to generate cold water for precooling fresh air in the fresh air precooling device;
(1-1-2) the refrigerant flowing out of the double-pipe heat exchanger enters the tube side of the shell-and-tube heat exchanger, exchanges heat with water to be cooled in the shell side of the shell-and-tube heat exchanger, generates high-temperature cold water at 18 ℃, and enters a ceiling radiation plate and a wall radiation plate through pipelines for cooling;
(1-1-3) after the fresh air precooled in the fresh air precooling device is dehumidified by a fresh air dehumidifying device, reheated by a fresh air reheating device and humidified by a wet film humidifying device in sequence, blowing the fresh air indoors by an air supply device;
(1-2) outdoor ambient temperature T0>30 ℃ and relative humidity<When 40%, open summer furred ceiling radiation and wall body radiation refrigeration mode and new trend air conditioner refrigeration mode, including following step:
(1-2-1) high-temperature refrigerant steam discharged by a first compressor passes through a four-way valve to exchange heat with a finned heat exchanger, is throttled and depressurized by a first expansion valve, then sequentially flows through a filter and a liquid storage device, exchanges heat with water to be cooled in a shell side of a shell-and-tube heat exchanger to generate 18 ℃ high-temperature cold water, and enters a ceiling radiation plate and a wall radiation plate through pipelines for cooling;
(1-2-2) fresh air conditioning refrigeration: the fresh air precooled in the fresh air precooling device is dehumidified by a fresh air dehumidifying device, reheated by a fresh air reheating device and humidified by a wet film humidifying device in sequence, and then the fresh air is blown indoors by an air supply device;
the fresh air entering the fresh air dehumidifying device is subjected to refrigerant circulation refrigeration in advance: high-temperature refrigerant steam discharged by the second compressor flows through the double-pipe heat exchanger for heat exchange, is throttled and depressurized by the second expansion valve, exchanges heat in the fresh air dehumidifying device for fresh air, and then flows back to the second compressor, and thus the refrigerant is circulated for refrigeration.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
1. the utility model discloses can realize the multi-functional cooling of unit and room humidity requirement to the different humidity difference in use place through changing different control logic modes.
2. Traditional cooling system adopts the temperature to be 7 ℃ cold water, the utility model provides an indoor radiant cooling system in summer cooling cold water is 18 ℃ high temperature cold water, greatly reduced energy resource consumption and waste, and radiation refrigeration does not have the sense of blowing simultaneously, satisfies people's living comfort requirement.
3. The utility model discloses the innovation provides the air source heat pump residual cold is retrieved and is used for handling new trend humidity and is equipped with a whole set of new trend processing mode for solve the easy dewfall problem.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is an enlarged view of the heat exchange unit of FIG. 1;
FIG. 3 is an enlarged view of the radiant cooling unit of FIG. 1;
FIG. 4 is an enlarged view of the fresh air device of FIG. 1;
FIG. 5 is a control flow chart of the combination of the middle-cooling mode and the fresh air processing mode of the present invention;
fig. 6 is the control flow chart of the combined double-cooling mode and fresh air conditioning mode of the utility model.
Description of reference numerals:
1-1, a first compressor; 1-2, a gas-liquid separator; 1-3, a four-way valve; 1-4, fin type heat exchanger; 1-5, a first expansion valve; 1-6, a filter; 1-7, a liquid reservoir; 1-8, double-pipe heat exchanger; 1-9, shell and tube heat exchangers; 1-10 parts of wall radiation plate; 1-11, ceiling radiant panels;
2-1, a second compressor; 2-2, a second expansion valve; 2-3, a fresh air reheating device; 2-4, a fresh air dehumidifying device; 2-5, a fresh air precooling device; 2-6, a wet film humidifying device; 2-7, an air supply device;
1. a No. 1 electromagnetic valve; 2. no. 2 electromagnetic valve; 3. no. 3 electromagnetic valve; 4. no. 4 electromagnetic valve; 5. no. 5 electromagnetic valve; 6. no. 6 electromagnetic valve; 7. a No. 7 electromagnetic valve; 8. no. 8 electromagnetic valve; 9. solenoid valve No. 9; 10. solenoid valve No. 10; 11. solenoid valve No. 11; 12. a No. 12 electromagnetic valve; 13. no. 13 electromagnetic valve; 14. solenoid valve No. 14; 15. no. 15 electromagnetic valve; 18. solenoid valve number 18; 19. solenoid valve No. 19; 20. solenoid valve No. 20.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the utility model provides an indoor radiant type cooling system in summer, including heat transfer device and radiation refrigerating plant, heat transfer device includes first compressor 1-1, vapour and liquid separator 1-2, cross valve 1-3, finned heat exchanger 1-4, first expansion valve 1-5, filter 1-6, reservoir 1-7, double pipe heat exchanger 1-8 and shell and tube heat exchanger 1-9, the high temperature refrigerant export of first compressor 1-1 passes through cross valve 1-3 and links to each other with the tube side import of shell and tube heat exchanger 1-9, the tube side export of shell and tube heat exchanger 1-9 links to each other with the import of reservoir 1-7, the export of reservoir 1-7 passes through first expansion valve 1-5 and filter 1-6 and connects finned heat exchanger 1-4, a low-temperature refrigerant outlet of the finned heat exchanger 1-4 is connected with a reflux port of the first compressor 1-1 sequentially through a four-way valve 1-3 and a gas-liquid separator 1-2; the double-pipe heat exchanger 1-8 is connected in parallel to a pipeline between the shell-and-tube heat exchanger 1-9 and the reservoir 1-7. Wherein, the water inlet and the water outlet of the double-pipe heat exchanger 1-8 are respectively connected with a water supply device through a water supply pipe and a water return pipe.
The radiation refrigeration device comprises ceiling radiation plates 1-11 and wall radiation plates 1-10, wherein the ceiling radiation plates 1-11 and the wall radiation plates 1-10 are connected in parallel between a shell pass water inlet and a shell pass water outlet of a shell-and-tube heat exchanger 1-9. Preferably, the ceiling radiation plates 1 to 11 and the wall radiation plates 1 to 10 are respectively connected with the shell pass water inlet and the shell pass water outlet of the shell-and-tube heat exchanger 1 to 9 through respective water dividing and collecting devices.
The summer indoor radiation type cooling system further comprises a fresh air device, the fresh air device comprises a fresh air precooling device 2-5, a fresh air dehumidifying device 2-4, a fresh air reheating device 2-3, a wet film humidifying device 2-6 and an air supply device 2-7, and an air outlet of the fresh air precooling device 2-5 is sequentially connected with the fresh air dehumidifying device 2-4, the fresh air reheating device 2-3, the wet film humidifying device 2-6 and the air supply device 2-7.
The fresh air device also comprises a second compressor 2-1 and a second expansion valve 2-2, wherein the second compressor 2-1, the fresh air reheating device 2-3, the second expansion valve 2-2 and the fresh air dehumidifying device 2-4 are in circulating connection.
Preferably, the fresh air reheating device 2-3 is a fin reheater, the fresh air dehumidifying device 2-4 is a fin evaporator, the fresh air precooling device 2-5 is a fin precooler, and the wet film humidifying device 2-6 is a wet film humidifier.
In the utility model, a 20-numbered electromagnetic valve 20 is arranged on the pipeline between the shell-and-tube heat exchanger 1-9 and the liquid reservoir 1-7, a 2-numbered electromagnetic valve 2 is arranged on the pipeline between the 20-numbered electromagnetic valve front side and the 1-8 sleeve-type heat exchanger, and a 1-numbered electromagnetic valve 1 is arranged on the pipeline between the 20-numbered electromagnetic valve rear side and the 1-8 sleeve-type heat exchanger.
A pipeline between the outlet of the double-pipe heat exchanger 1-8 and the inlet of the fresh air precooling device 2-5 is provided with a No. 3 electromagnetic valve 3, and a pipeline between the outlet of the fresh air precooling device 2-5 and the inlet of the double-pipe heat exchanger 1-8 is provided with a No. 4 electromagnetic valve 4. No. 18 electromagnetic valves 18 are arranged on the water return pipes of the double-pipe heat exchangers 1-8, and No. 19 electromagnetic valves 19 are arranged on the water supply pipes.
A No. 6 electromagnetic valve 6 is arranged on a pipeline between the outlet of the second compressor 2-1 and the inlet of the fresh air reheating device 2-3, and a No. 5 electromagnetic valve 5 is arranged on a pipeline between the front side of the No. 6 electromagnetic valve 6 and the inlet of the double-pipe heat exchanger 1-8. A pipeline between the outlet of the fresh air reheating device 2-3 and the inlet of the fresh air dehumidifying device 2-4 is provided with a No. 8 electromagnetic valve 8, and a pipeline between the front side of the No. 8 electromagnetic valve 8 and the outlet of the double-pipe heat exchanger 1-8 is provided with a No. 7 electromagnetic valve 7.
And a No. 9 electromagnetic valve 9 is arranged on a water supply pipe of the wet film humidifying device 2-6.
A water outlet pipe of the shell and tube heat exchanger 1-9 is provided with a No. 10 electromagnetic valve 10, and a water return pipe is provided with a No. 11 electromagnetic valve 11. No. 13 electromagnetic valves 13 are arranged on pipelines between the front sides of the No. 10 electromagnetic valves 10 and the water inlets of the wall radiation plates 1-10, and No. 12 electromagnetic valves 12 are arranged on pipelines between the water outlets of the wall radiation plates 1-10 and the front sides of the No. 11 electromagnetic valves 11. No. 15 electromagnetic valves 15 are arranged on pipelines between the front sides of the No. 10 electromagnetic valves 10 and the water inlets of the suspended ceiling radiation plates 1-11, and No. 14 electromagnetic valves 14 are arranged on pipelines between the water outlets of the suspended ceiling radiation plates 1-11 and the front sides of the No. 11 electromagnetic valves 11.
The indoor radiation type cooling system in summer has the outdoor environment temperature T0>And (2) starting summer ceiling radiation and wall radiation refrigeration modes at the temperature of 30 ℃, and comprising the following steps of:
(1) high-temperature refrigerant discharged by a first compressor 1-1 enters a finned heat exchanger 1-4 through a four-way valve 1-3 for heat exchange, is throttled and decompressed by a first expansion valve 1-5, then flows into a sleeve type heat exchanger 1-8 for primary heat exchange after passing through a filter 1-6 and a liquid reservoir 1-7, then enters a tube side of a shell and tube type heat exchanger 1-9 for heat exchange with water to be cooled in the shell side of the shell and tube type heat exchanger 1-9 to generate high-temperature cold water at 18 ℃, and enters a ceiling radiation plate 1-11 and a wall radiation plate 1-10 for cooling through a pipeline. The method comprises the following specific steps:
(1-1) outdoor ambient temperature T0>30 ℃ and relative humidity>When 60%, open summer furred ceiling radiation and wall body radiation refrigeration mode and new trend and handle the mode, the step is as follows:
(1-1-1) residual cooling recovery process: high-temperature refrigerant steam discharged by a first compressor 1-1 exchanges heat with a finned heat exchanger 1-4 through a four-way valve 1-3, is throttled and depressurized through a first expansion valve 1-5, sequentially flows through a filter 1-6 and a liquid accumulator 1-7, and then exchanges heat with a sleeve type heat exchanger 1-8 primarily to generate cold water for precooling fresh air in a fresh air precooling device 2-5;
(1-1-2) the refrigerant flowing out of the double-pipe heat exchanger 1-8 enters the tube side of the shell-and-tube heat exchanger 1-9, exchanges heat with the water to be cooled in the shell side of the shell-and-tube heat exchanger 1-9 to generate high-temperature cold water at 18 ℃, and enters the ceiling radiation plates 1-11 and the wall radiation plates 1-10 through the pipeline for cooling;
(1-1-3) after the fresh air precooled in the fresh air precooling device 2-5 is dehumidified by the fresh air dehumidifying device 2-4, reheated by the fresh air reheating device 2-3 and humidified by the wet film humidifying device 2-6 in sequence, the fresh air is blown to the room by the air supply device 2-7. The step also comprises a refrigerant circulating process provided by a refrigerant circulating device, wherein the refrigerant circulating device is formed by circularly connecting a fresh air dehumidifying device 2-4, a second compressor 2-1, a fresh air reheating device 2-3 and a second expansion valve 2-2.
The flow chart of the control process is shown in fig. 5, in the cooling process, the solenoid valve 20 No. 20, the solenoid valve 5 No. 5 and the solenoid valve 7 No. 7 are closed, and the rest are all opened.
(1-2) outdoor ambient temperature T0>30 ℃ and relative humidity<When 40%, open summer furred ceiling radiation and wall body radiation refrigeration mode and new trend air conditioner refrigeration mode, the step is as follows:
(1-2-1) high-temperature refrigerant steam discharged by a first compressor 1-1 exchanges heat with a finned heat exchanger 1-4 through a four-way valve 1-3, is throttled and depressurized through a first expansion valve 1-5, then sequentially flows through a filter 1-6 and a liquid reservoir 1-7, exchanges heat with water to be cooled in a shell pass of a shell and tube heat exchanger 1-9 to generate 18 ℃ high-temperature cold water, and enters a ceiling radiation plate 1-11 and a wall radiation plate 1-10 through a pipeline for cooling;
(1-2-2) fresh air conditioning refrigeration: the fresh air precooled in the fresh air precooling device 2-5 is dehumidified by a fresh air dehumidifying device 2-4, reheated by a fresh air reheating device 2-3 and humidified by a wet film humidifying device 2-6 in sequence, and then the fresh air is blown to the room by an air supply device 2-7;
the fresh air entering the fresh air dehumidifying device 2-4 is subjected to refrigerant cycle refrigeration in advance: high-temperature refrigerant steam discharged by the second compressor 2-1 flows through the double-pipe heat exchanger 1-8 for heat exchange, is throttled and depressurized by the second expansion valve 2-2, exchanges heat in the fresh air dehumidifying device 2-4 for fresh air, and then flows back to the second compressor 2-1, and the refrigerant is circulated for refrigeration.
(2) Refrigerant in the tube pass of the shell-and-tube heat exchanger 1-9 flows through the four-way valve 1-3 and the gas-liquid separator 1-2 and then returns to the first compressor 1-1;
(3) and (3) circulating refrigeration based on the steps (1) and (2).
The flow chart of the control process is shown in fig. 6, in the cooling process, the solenoid valves 1, 2, 3, 4, 6 and 8 are closed, and the rest are all opened.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An indoor radiation type cooling system in summer is characterized by comprising a heat exchange device and a radiation refrigeration device, wherein the heat exchange device comprises a first compressor (1-1), a gas-liquid separator (1-2), a four-way valve (1-3), a finned heat exchanger (1-4), a first expansion valve (1-5), a filter (1-6), a liquid storage device (1-7), a double-pipe heat exchanger (1-8) and a shell-and-tube heat exchanger (1-9), a high-temperature refrigerant outlet of the first compressor (1-1) is connected with a pipe pass inlet of the double-pipe heat exchanger (1-9) through the four-way valve (1-3), a pipe pass outlet of the shell-and-tube heat exchanger (1-9) is connected with an inlet of the liquid storage device (1-7), and an outlet of the liquid storage device (1-7) is connected with an inlet of the first shell-and-tube heat exchanger (1-5) and the filter (1-6) The low-temperature refrigerant outlet of the finned heat exchanger (1-4) is connected with the reflux port of the first compressor (1-1) through a four-way valve (1-3) and a gas-liquid separator (1-2) in sequence; the double-pipe heat exchanger (1-8) is connected in parallel on a pipeline between the shell-and-tube heat exchanger (1-9) and the liquid reservoir (1-7);
the radiation refrigeration device comprises a ceiling radiation plate (1-11) and a wall radiation plate (1-10), wherein the ceiling radiation plate (1-11) and the wall radiation plate (1-10) are connected in parallel between a shell pass water inlet and a shell pass water outlet of a shell-and-tube heat exchanger (1-9).
2. The summer indoor radiant cooling system as claimed in claim 1, further comprising a fresh air device, wherein the fresh air device comprises a fresh air precooling device (2-5), a fresh air dehumidifying device (2-4), a fresh air reheating device (2-3), a wet film humidifying device (2-6) and an air supply device (2-7), and an air outlet of the fresh air precooling device (2-5) is sequentially connected with the fresh air dehumidifying device (2-4), the fresh air reheating device (2-3), the wet film humidifying device (2-6) and the air supply device (2-7).
3. A summer indoor radiant cooling system as claimed in claim 1, wherein the ceiling radiant panels (1-11) and the wall radiant panels (1-10) are respectively connected with the shell-side water inlet and outlet of the shell-and-tube heat exchanger (1-9) through respective water collecting and collecting devices.
4. A summer indoor radiant cooling system as claimed in claim 1, wherein the water inlet and outlet ports of the double pipe heat exchanger (1-8) are connected to a water supply means through a water supply pipe and a water return pipe, respectively.
5. Indoor radiant cooling system in summer according to claim 2, characterized in that the fresh air device further comprises a second compressor (2-1) and a second expansion valve (2-2), and the second compressor (2-1), the fresh air reheating device (2-3), the second expansion valve (2-2) and the fresh air dehumidifying device (2-4) are in circulation connection.
6. A summer indoor radiant cooling system as claimed in claim 2, wherein the fresh air reheating device (2-3) is a fin reheater, the fresh air dehumidifying device (2-4) is a fin evaporator, the fresh air precooling device (2-5) is a fin precooler, and the wet film humidifying device (2-6) is a wet film humidifier.
7. A summer indoor radiant cooling system according to claim 1, wherein a No. 20 solenoid valve (20) is provided on a pipe between the shell-and-tube heat exchanger (1-9) and the accumulator (1-7), a No. 2 solenoid valve (2) is provided on a pipe between a front side of the No. 20 solenoid valve (20) and the double pipe heat exchanger (1-8), and a No. 1 solenoid valve (1) is provided on a pipe between a rear side of the No. 20 solenoid valve (20) and the double pipe heat exchanger (1-8);
a water outlet pipe of the shell-and-tube heat exchanger (1-9) is provided with a No. 10 electromagnetic valve (10), and a water return pipe is provided with a No. 11 electromagnetic valve (11);
a No. 13 electromagnetic valve (13) is arranged on a pipeline between the front side of the No. 10 electromagnetic valve (10) and the water inlet of the wall radiation plate (1-10), and a No. 12 electromagnetic valve (12) is arranged on a pipeline between the water outlet of the wall radiation plate (1-10) and the front side of the No. 11 electromagnetic valve (11);
no. 15 electromagnetic valves (15) are arranged on pipelines between the front sides of the No. 10 electromagnetic valves (10) and the water inlets of the ceiling radiation plates (1-11), and No. 14 electromagnetic valves (14) are arranged on pipelines between the water outlets of the ceiling radiation plates (1-11) and the front sides of the No. 11 electromagnetic valves (11).
8. A summer indoor radiant cooling system according to claim 2, wherein a number 3 solenoid valve (3) is provided on a pipeline between an inlet of the fresh air precooling apparatus (2-5) and an outlet of the double pipe heat exchanger (1-8), and a number 4 solenoid valve (4) is provided on a pipeline between an outlet of the fresh air precooling apparatus (2-5) and an inlet of the double pipe heat exchanger (1-8);
a No. 8 electromagnetic valve (8) is arranged on a pipeline between the outlet of the fresh air reheating device (2-3) and the inlet of the fresh air dehumidifying device (2-4), and a No. 7 electromagnetic valve (7) is arranged on a pipeline between the front side of the No. 8 electromagnetic valve (8) and the outlet of the sleeve type heat exchanger (1-8);
and a water supply pipe of the wet film humidifying device (2-6) is provided with a No. 9 electromagnetic valve (9).
9. A summer indoor radiant cooling system as claimed in claim 4, wherein the number 18 solenoid valve (18) is provided on the return pipe of the double pipe heat exchanger (1-8), and the number 19 solenoid valve (19) is provided on the water supply pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120060561.6U CN213984117U (en) | 2021-01-11 | 2021-01-11 | Indoor radiant type cooling system in summer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120060561.6U CN213984117U (en) | 2021-01-11 | 2021-01-11 | Indoor radiant type cooling system in summer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526518A (en) * | 2022-02-18 | 2022-05-24 | 广州莱堡科技有限公司 | Air conditioning system and method for slit channel radiation convection |
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2021
- 2021-01-11 CN CN202120060561.6U patent/CN213984117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526518A (en) * | 2022-02-18 | 2022-05-24 | 广州莱堡科技有限公司 | Air conditioning system and method for slit channel radiation convection |
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