CN212057674U - Heat recovery device of double-circulation solution pump - Google Patents
Heat recovery device of double-circulation solution pump Download PDFInfo
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- CN212057674U CN212057674U CN202020857084.1U CN202020857084U CN212057674U CN 212057674 U CN212057674 U CN 212057674U CN 202020857084 U CN202020857084 U CN 202020857084U CN 212057674 U CN212057674 U CN 212057674U
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Abstract
The utility model belongs to the technical field of the cold and hot volume of air is retrieved, concretely relates to two circulation solution pump heat reclamation device. The utility model is divided into three subsystems of a two-phase flow heat pipe cold and heat recovery system, a central control system and an air circulation system according to functions; the system comprises a heat pipe system, a heat pipe system and a heat pipe system, wherein the heat pipe system comprises a summer mode and a winter mode; the main body of the device is simple in structure, ingenious in design concept, convenient to design, use and maintain, environment-friendly in application and wide in market prospect.
Description
The technical field is as follows:
the utility model belongs to the technical field of the cold and hot volume of air is retrieved, concretely relates to two circulation solution pump heat reclamation device.
Background art:
at present, the production and manufacturing of various industries such as pharmacy, electronics, textile and the like have strict requirements on temperature and humidity and air cleanliness control, and a constant-temperature technological air-conditioning environment with a large fresh air ratio is required all the year round. The traditional technical air processing unit is generally a full-delivery full-discharge air processing system, outdoor air is filtered, cooled and dehumidified by the air processing unit and then delivered into a room in summer, and the indoor air is directly discharged into the atmosphere through an exhaust unit; in winter, fresh air is filtered, heated and humidified by the air handling unit and then sent into a room, and the indoor air is directly exhausted into the atmosphere by the exhaust unit. However, a large amount of cold or heat is carried in the indoor discharged air, which causes a large amount of energy waste due to direct discharge, and a large amount of energy is consumed for the air processing unit to process the outdoor air.
At present, most of air heat recovery units mainly comprise a runner heat recovery system, a cross plate type heat recovery system and an ethylene glycol heat recovery system. The runner heat recovery system and the cross plate type heat recovery system need to lead indoor exhaust air to a fresh air place through an air duct to exchange heat with fresh air, the site construction is complex, and the exhaust air and the fresh air have cross pollution risks. In the runner type heat recovery system, after the runner is contacted with indoor exhaust air, the runner carries a part of heat or cold in the exhaust air, then the runner is transferred to a fresh air side to be contacted with fresh air, the heat or cold is transferred to the fresh air, the waste heat recovery in the exhaust air is completed, but the runner can carry a part of substances in the exhaust air to pollute the fresh air; the cross plate type heat recovery system leads fresh air and exhaust air to the same cross plate type heat exchanger, the fresh air and the exhaust air exchange heat in a cross way, the indoor exhaust air with higher humidity and the fresh air with the temperature below 0 ℃ can be frozen after the heat exchange in a cross way in winter, and the cross plate type heat exchanger can be frozen in serious conditions; the ethylene glycol heat recovery system is characterized in that the ethylene glycol flowing in the system is used as secondary refrigerant to exchange heat with fresh air and exhaust air respectively, so that the cold and heat quantity of the exhaust air is recovered, and the heat recovery efficiency of the ethylene glycol heat recovery system is extremely low due to the fact that the temperature difference of the fresh air and the exhaust air is small and sensible heat carried by the ethylene glycol is small.
In conclusion, the runner heat recovery system, the cross plate type heat recovery system and the glycol heat recovery system have the problems of complex site construction, cross pollution of fresh air exhaust, low heat recovery efficiency and the like. Therefore, a double-circulation solution pump heat recovery device is sought, the unit is connected with two heat exchangers arranged in a fresh air unit and an exhaust unit by using two copper pipes, exhaust air does not need to be led to a fresh air position by using an air duct, the risk of cross pollution of fresh air exhaust is avoided, and the problems of complex site construction, cross pollution of fresh air exhaust and low heat recovery efficiency of the existing air heat recovery device are solved by using a heat pipe cold and heat recovery technology.
The utility model has the following contents:
the utility model discloses a utility model aims at overcoming the shortcoming that prior art exists, seeking to design a neotype, efficient, automatic switch-over cold and hot volume recovery, safe no cross contamination, the simple and convenient two circulation solution pump heat recovery unit of site operation.
For realizing the utility model purpose of complaining on, the utility model relates to a two circulation solution pump heat recovery unit realizes through following technical scheme:
the utility model is divided into three subsystems of a two-phase flow heat pipe cold and heat recovery system, a central control system and an air circulation system according to functions; the system comprises a heat pipe system, a heat pipe system and a heat pipe system, wherein the heat pipe system comprises a summer mode and a winter mode;
the concrete structure is as follows: a fresh air side heat exchanger is arranged in the fresh air unit box body, a fresh air front temperature sensor is arranged at the left side of the fresh air side heat exchanger, namely at the end close to the air inlet of the fresh air unit box body, and is used for measuring the temperature of outdoor fresh air, the left side of the fresh air side heat exchanger is connected with one end of a fresh air side heat exchanger liquid separator through a fresh air side heat exchanger equal-length liquid equalizing pipe, the other end of the fresh air side heat exchanger liquid separator is provided with two branches, one branch is connected with a summer mode electromagnetic valve through a fresh air side heat exchanger liquid working medium conveying pipe, and is connected with a liquid working medium conveying main pipe through a summer mode electromagnetic valve liquid supply pipe, the other branch is sequentially connected with a winter mode liquid storage device and a winter mode circulating solution pump through pipelines, and the winter mode circulating solution pump is connected with the liquid working medium conveying main pipe through pipelines;
the left end of the exhaust unit box body, namely the end close to the indoor space, is provided with an exhaust side heat exchanger, the left side of the exhaust side heat exchanger is close to a temperature sensor before exhaust, and the temperature sensor is used for measuring the temperature of indoor exhaust air; the upper end of the air exhaust side heat exchanger is connected with a fresh air side heat exchanger pipeline through a two-phase flow working medium conveying main pipe, the right end of the fresh air side heat exchanger is connected with one end of an air exhaust side heat exchanger liquid separator through an air exhaust side heat exchanger equal-length liquid equalizing pipe, two branch pipelines are respectively arranged at the other end of the air exhaust side heat exchanger liquid separator, one branch pipeline is sequentially connected with a winter mode electromagnetic valve and a winter mode electromagnetic valve liquid supply pipe through an air exhaust side heat exchanger liquid working medium conveying pipe, the other end of the winter mode electromagnetic valve liquid supply pipe is connected with a liquid working medium conveying main pipe pipeline, the other branch pipeline is sequentially connected with a summer mode liquid reservoir and a summer mode circulating solution pump, and the other end of the;
the summer mode electromagnetic valve, the winter mode electromagnetic valve, the temperature sensor before the fresh air, the temperature sensor after the fresh air, the temperature sensor before the air exhaust, the temperature sensor after the air exhaust, the winter mode circulating solution pump and the summer mode circulating solution pump are electrically connected with the PLC control cabinet, the start and stop of the components are controlled by the PLC control cabinet, and the use under different working conditions in summer and winter is realized by controlling the start and stop of different components.
Further, the utility model discloses well two-phase flow working medium carries still to be provided with the two-phase flow working medium sight glass who is used for observing intraductal working medium on the female pipe.
The utility model discloses when using, concrete operation mode goes on according to following step: the summer mode exhaust side heat exchanger recovers cold energy in air exhausted from a room, so that gas-liquid two-phase flow working media entering the exhaust side heat exchanger from a two-phase flow working media main pipe of the heat pipe system are completely condensed into liquid, the liquid enters a summer mode heat pipe system circulating solution pump through a liquid working media conveying pipe of the exhaust side heat exchanger under the action of gravity, the liquid is conveyed to a fresh air side heat exchanger liquid distributor through a summer mode electromagnetic valve by the liquid working media conveying main pipe after pressure is increased, the liquid is uniformly distributed and then is conveyed to the fresh air side heat exchanger through a uniform length liquid distribution pipe of the fresh air side heat exchanger, heat absorbed from air sucked from the outside is converted into gas-liquid two-phase flow working media, the two-phase flow working media are conveyed to the exhaust side heat exchanger through the two-phase flow working media conveying main pipe again, circulation is formed, the cold energy is continuously;
the heat exchanger at the exhaust side recovers the heat in the air exhausted from the room in winter mode, so that the liquid working medium entering the heat exchanger at the exhaust side from the liquid equalizing pipe with the same length as the heat exchanger at the exhaust side is evaporated and converted into a gas-liquid two-phase flow working medium, the gas-liquid two-phase flow working medium passes through the two-phase flow working medium conveying main pipe, the two-phase flow working medium is conveyed into the fresh air side heat exchanger, the cold energy absorbed from the outdoor air is absorbed, so that the gas-liquid two-phase flow working medium is completely condensed into liquid, the liquid enters a winter mode circulating solution pump through a liquid working medium conveying pipe of the fresh air side heat exchanger under the action of gravity, is conveyed into a liquid distributor of the exhaust side heat exchanger through a winter mode electromagnetic valve through a liquid working medium conveying main pipe after the pressure is increased, and enters an exhaust side heat exchanger through a uniform length liquid distribution pipe on the exhaust side of the heat pipe system after uniform liquid distribution, thus, the circulation is formed, heat is continuously recovered from the air exhausted from the room, and the air sucked from the outside is preheated.
The utility model relates to a central control subsystem, by arranging temperature sensor before the new trend in the wind channel, temperature signal line before the new trend, temperature sensor before the air exhaust and temperature signal transmission line before the air exhaust obtain temperature before the new trend, temperature before the air exhaust, central controller changes the flow direction of two-phase flow working medium in the heat pipe system through the control to summer mode circulation solution pump, summer mode solenoid valve, winter mode circulation solution pump and winter mode solenoid valve, realize retrieving the automatic switch-over of cold volume or heat; the central controller controls the working frequency of the summer mode circulating solution pump or the winter mode circulating solution pump to realize the automatic regulation of the circulation volume of the two-phase flow working medium and the recovery volume of the cold and heat volume; the central control subsystem has the following effects: the free switching of the cold or heat recovery and the automatic adjustment of the cold and heat recovery are realized.
The utility model discloses realize that the start-up and the operation process of air cooling volume, heat recovery are: the two-phase flow heat pipe subsystem is pumped out and filled with proper working medium, the fan of the fresh air unit and the fan of the exhaust unit are started, the heat pipe cold and heat recovery subsystem is started after about minutes, and the system can reach the working stage of stably recovering cold and heat after minutes, so that the cold or heat in the exhaust air can be continuously and efficiently recovered.
Compared with the prior art, the utility model, the unit only uses two copper pipes to connect two heat exchangers arranged in the fresh air unit and the exhaust fan unit, the system structure is simple, the exhaust air is not needed to be led to the fresh air place by utilizing the air duct, the influence of the site construction condition is less, and the risk of cross contamination of the fresh air exhaust air is avoided; the heat pipe cold and heat recovery technology is utilized, and the air cold and heat recovery efficiency is greatly improved; the main body of the device is simple in structure, ingenious in design concept, convenient to design, use and maintain, environment-friendly in application and wide in market prospect.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: fresh air side heat exchanger liquid working medium conveying pipe 1, summer mode electromagnetic valve 2, summer mode electromagnetic valve liquid supply pipe 3, liquid working medium conveying main pipe 4, fresh air side heat exchanger liquid separator 5, winter mode electromagnetic valve liquid supply pipe 6, winter mode electromagnetic valve 7, exhaust side heat exchanger liquid working medium conveying pipe 8, outdoor fresh air 9, fresh air side heat exchanger equal length liquid equalizing pipe 10, unit air supply 11, indoor exhaust 12, exhaust side heat exchanger equal length liquid equalizing pipe 13, exhaust unit exhaust 14, fresh air unit box 15, fresh air front temperature sensor 16, fresh air side heat exchanger 17, fresh air rear temperature sensor 18, fresh air unit fan 19, PLC control cabinet 20, exhaust front temperature sensor 21, exhaust side heat exchanger 22, exhaust rear temperature sensor 23, exhaust unit fan 24, exhaust unit box 25, winter mode reservoir 26, winter mode circulating solution pump 27, cold air circulation pump, cold, The system comprises a two-phase flow working medium conveying main pipe 28, a summer mode circulating solution pump 29, a summer mode liquid storage device 30, a two-phase flow working medium liquid viewing mirror 31, an exhaust side heat exchanger liquid separator 32, a summer mode electromagnetic valve control line 33, a fresh air front temperature signal transmission line 34, a fresh air rear temperature signal transmission line 35, a winter mode circulating solution pump control line 36, a summer mode circulating solution pump control line 37, a exhaust front temperature signal transmission line 38, an exhaust rear temperature signal transmission line 39 and a winter mode electromagnetic valve control line 40.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example (b):
the heat recovery device of the double-circulation solution pump is realized by the following technical scheme:
the system is divided into three subsystems, namely a two-phase flow heat pipe cold and heat recovery system, a central control system and an air circulation system according to functions; the system comprises a heat pipe system, a heat pipe system and a heat pipe system, wherein the heat pipe system comprises a summer mode and a winter mode;
the concrete structure is as follows: a fresh air side heat exchanger 17 is arranged in a fresh air unit box body 15, a fresh air front temperature sensor 16 is arranged at the left side of the fresh air side heat exchanger 17, namely, at one end close to an air inlet of the fresh air unit box body 15, and is used for measuring the temperature of outdoor fresh air 9, a fresh air rear temperature sensor 18 is arranged at the right side of the fresh air side heat exchanger 17, a fresh air unit fan 19 is arranged at an air outlet of the fresh air unit box body 15, the left side of the fresh air side heat exchanger 17 is connected with one end of a fresh air side heat exchanger liquid separator 5 through a fresh air side heat exchanger equal-length liquid equalizing pipe 10, the other end of the fresh air side heat exchanger liquid separator 5 is provided with two branches, one branch is connected with a summer mode electromagnetic valve 2 through a fresh air side heat exchanger liquid working medium conveying pipe 1, and then is connected with a, meanwhile, the winter mode circulating solution pump 27 is connected with the liquid working medium conveying main pipe 4 through a pipeline;
an exhaust side heat exchanger 22 is arranged at the left end of the exhaust unit box body 25, namely close to the indoor end, a pre-exhaust temperature sensor 21 is arranged at the left side of the exhaust side heat exchanger 22, namely close to the indoor end, and is used for measuring the temperature of indoor exhaust air 12, an exhaust rear temperature sensor 23 is arranged at the right side of the exhaust side heat exchanger 22, and an exhaust unit fan 24 is positioned at an air outlet at the right end of the exhaust unit box body 25 and exhausts exhaust 14 of the exhaust unit from the air outlet; the upper end of the air exhaust side heat exchanger 22 is connected with a pipeline of a fresh air side heat exchanger 17 through a two-phase flow working medium conveying main pipe 28, the right end of the fresh air side heat exchanger 17 is connected with one end of an air exhaust side heat exchanger liquid separator 32 through an air exhaust side heat exchanger equal-length liquid equalizing pipe 13, two branch pipelines are respectively arranged at the other end of the air exhaust side heat exchanger liquid separator 32, one branch pipeline is sequentially connected with a winter mode electromagnetic valve 7 and a winter mode electromagnetic valve liquid supply pipe 6 through an air exhaust side heat exchanger liquid working medium conveying pipe 8, the other end of the winter mode electromagnetic valve liquid supply pipe 6 is connected with a liquid working medium conveying main pipe 4 through a pipeline, the other branch pipeline is sequentially connected with a summer mode liquid reservoir 30 and a summer mode circulating solution pump 29, and the other end of;
the summer mode electromagnetic valve 2, the winter mode electromagnetic valve 7, the fresh air front temperature sensor 16, the fresh air rear temperature sensor 18, the air exhaust front temperature sensor 21, the air exhaust rear temperature sensor 23, the winter mode circulating solution pump 27 and the summer mode circulating solution pump 29 are electrically connected with the PLC control cabinet 20, the start and stop of the components are controlled by the PLC control cabinet 20, and the use under different working conditions in summer and winter is realized by controlling the start and stop of different components.
Further, in the present embodiment, the two-phase flow working medium delivery main pipe 28 is further provided with a two-phase flow working medium liquid observation mirror 31 for observing the working medium in the pipe.
When the method is used, the specific operation mode is as follows: the heat exchanger 22 at the exhaust side in summer recovers the cold energy in the air exhausted from the room, so that the working medium of the gas-liquid two-phase flow entering the heat exchanger 22 at the exhaust side from the main pipe 28 of the working medium of the two-phase flow of the heat pipe system is completely condensed into liquid, under the action of gravity, the liquid enters a circulating solution pump 29 of the summer mode heat pipe system through a liquid working medium conveying pipe 8 of the air exhaust side heat exchanger, is conveyed to a fresh air side heat exchanger liquid separator 5 through a summer mode electromagnetic valve 2 through a liquid working medium conveying main pipe 4 after the pressure is increased, is conveyed to a fresh air side heat exchanger 17 through a fresh air side heat exchanger equal-length liquid-sharing pipe 10 after the liquid is uniformly separated, the heat absorbed from the outdoor air is converted into the gas-liquid two-phase flow working medium, the two-phase flow working medium is sent to the exhaust side heat exchanger 22 again through the two-phase flow working medium conveying main pipe 28, circulation is formed in this way, cold energy is continuously recycled from the discharged air, and the air sucked from the outdoor is precooled;
the winter mode exhaust side heat exchanger 22 recovers heat in air exhausted from the room, so that liquid working medium entering the exhaust side heat exchanger 22 from the equal-length liquid equalizing pipe 13 of the exhaust side heat exchanger is evaporated and converted into gas-liquid two-phase flow working medium, the gas-liquid two-phase flow working medium passes through the two-phase flow working medium conveying main pipe 28, the two-phase flow working medium is conveyed into the fresh air side heat exchanger 17, the cold energy absorbed from the air sucked from the outside is absorbed, the gas-liquid two-phase flow working medium is completely condensed into liquid, the liquid enters the winter mode circulating solution pump 27 through the liquid working medium conveying pipe 1 of the fresh air side heat exchanger under the action of gravity, the liquid is conveyed into the exhaust side heat exchanger liquid divider 32 through the winter mode electromagnetic valve 7 by the liquid working medium conveying main pipe 4 after pressure is increased, the liquid is uniformly divided, and then enters the exhaust side heat exchanger 22 through the equal-length liquid equalizing pipe 13 of the, preheating air sucked from the outside.
The central control subsystem related to this embodiment obtains the temperature before fresh air and the temperature before exhaust by the temperature sensor before fresh air 16, the temperature signal line before fresh air 34, the temperature sensor before exhaust 21 and the temperature signal transmission line before exhaust 38 which are arranged in the air duct, and the central controller changes the flow direction of the two-phase flow working medium in the heat pipe system by controlling the summer mode circulating solution pump 29, the summer mode electromagnetic valve 2, the winter mode circulating solution pump 27 and the winter mode electromagnetic valve 7, thereby realizing the automatic switching of the recovered cold or heat; the temperature after fresh air and the temperature after air exhaust are obtained through a fresh air rear temperature sensor 18, a fresh air rear temperature signal transmission line 35, an air exhaust rear temperature sensor 23 and an air exhaust rear temperature signal transmission line 39 which are arranged in the air duct, and the central controller realizes the automatic regulation of the circulation volume of the two-phase flow working medium and the cold and heat recovery volume in the heat pipe system through the control of the working frequency of the summer mode circulating solution pump 29 or the winter mode circulating solution pump 27; the central control subsystem has the following effects: the free switching of the cold or heat recovery and the automatic adjustment of the cold and heat recovery are realized.
The starting and running processes for realizing air cold and heat recovery in the embodiment are as follows: the two-phase flow heat pipe subsystem is firstly pumped out and filled with proper working medium, the fan 19 of the fresh air unit and the fan 22 of the exhaust unit are started, the heat and cold recovery subsystem of the heat pipe is started after about 10 minutes, and the system can reach the working stage of stably recovering the heat and cold after 10 minutes, so that the cold or heat in the exhaust air can be continuously and efficiently recovered.
Claims (2)
1. A heat recovery device of a double-circulation solution pump is characterized by being realized by the following scheme: a fresh air side heat exchanger is arranged in the fresh air unit box body, a fresh air front temperature sensor is arranged at the left side of the fresh air side heat exchanger, namely at the end close to the air inlet of the fresh air unit box body, the left side of the fresh air side heat exchanger is connected with one end of a fresh air side heat exchanger liquid separator through a fresh air side heat exchanger equal-length liquid equalizing pipe, the other end of the fresh air side heat exchanger liquid separator is provided with two branches, one branch is connected with a summer mode electromagnetic valve through a fresh air side heat exchanger liquid working medium conveying pipe, and is connected with a liquid working medium conveying main pipe through a summer mode electromagnetic valve liquid supply pipe, the other branch is sequentially connected with a winter mode liquid storage device and a winter mode circulating solution pump through pipelines, and the winter mode circulating solution pump is connected with the liquid working medium conveying main pipe through pipelines; an exhaust side heat exchanger is arranged at the left end of the exhaust unit box body, namely close to the indoor end, a temperature sensor before exhaust is arranged at the left side of the exhaust side heat exchanger, namely close to the indoor end, a temperature sensor after exhaust is arranged at the right side of the exhaust side heat exchanger, and an exhaust unit fan is positioned at an air outlet at the right end of the exhaust unit box body and exhausts air from the exhaust unit; the upper end of the air exhaust side heat exchanger is connected with a fresh air side heat exchanger pipeline through a two-phase flow working medium conveying main pipe, the right end of the fresh air side heat exchanger is connected with one end of an air exhaust side heat exchanger liquid separator through an air exhaust side heat exchanger equal-length liquid equalizing pipe, two branch pipelines are respectively arranged at the other end of the air exhaust side heat exchanger liquid separator, one branch pipeline is sequentially connected with a winter mode electromagnetic valve and a winter mode electromagnetic valve liquid supply pipe through an air exhaust side heat exchanger liquid working medium conveying pipe, the other end of the winter mode electromagnetic valve liquid supply pipe is connected with a liquid working medium conveying main pipe pipeline, the other branch pipeline is sequentially connected with a summer mode liquid reservoir and a summer mode circulating solution pump, and the other end of the; the summer mode electromagnetic valve, the winter mode electromagnetic valve, the front fresh air temperature sensor, the rear fresh air temperature sensor, the front exhaust air temperature sensor, the rear exhaust air temperature sensor, the winter mode circulating solution pump and the summer mode circulating solution pump are electrically connected with the PLC control cabinet.
2. The heat recovery device of a dual cycle solution pump as claimed in claim 1, wherein the two-phase flow working medium delivery main pipe is further provided with a two-phase flow working medium sight glass for observing the working medium in the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857084.1U CN212057674U (en) | 2020-05-21 | 2020-05-21 | Heat recovery device of double-circulation solution pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857084.1U CN212057674U (en) | 2020-05-21 | 2020-05-21 | Heat recovery device of double-circulation solution pump |
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| Publication Number | Publication Date |
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| CN212057674U true CN212057674U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020857084.1U Active CN212057674U (en) | 2020-05-21 | 2020-05-21 | Heat recovery device of double-circulation solution pump |
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| CN (1) | CN212057674U (en) |
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- 2020-05-21 CN CN202020857084.1U patent/CN212057674U/en active Active
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