CN101776319A - Energy-saving device of heat pipe counter flow back-heating air-conditioning box - Google Patents

Energy-saving device of heat pipe counter flow back-heating air-conditioning box Download PDF

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Publication number
CN101776319A
CN101776319A CN201010104191A CN201010104191A CN101776319A CN 101776319 A CN101776319 A CN 101776319A CN 201010104191 A CN201010104191 A CN 201010104191A CN 201010104191 A CN201010104191 A CN 201010104191A CN 101776319 A CN101776319 A CN 101776319A
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China
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heat
air
conditioning box
coil pipe
rearmounted
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Granted
Application number
CN201010104191A
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Chinese (zh)
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CN101776319B (en
Inventor
王厉
骆菁菁
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Zhejiang Sci Tech University ZSTU
Zhejiang University of Science and Technology ZUST
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Zhejiang Sci Tech University ZSTU
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Abstract

The invention discloses an energy-saving device of a heat pipe counter flow back-heating air-conditioning box. An entrance of an air-conditioning box body (22) is provided with a return air inlet (1) and a fresh air inlet (2) respectively, and an exit of the air-conditioning box body (22) is provided with an air outlet (12); a preposed filter (3), a preposed pre-cooling/heating device (4), a heat insulation spray humidifier (5), a preposed heat absorption coiled tube bank (6), a post-posed surface cooler (7), a post-posed heat release coiled tube bank (8), a heater (9), a ventilating blower (10) and a post-posed filter (11) are arranged in the air-conditioning box body (22) in turn according to the flow direction of wind; the preposed heat absorption coiled tube bank (6) is communicated with the post-posed heat release coiled tube bank (8) through a heat tube bank (13); and water inlet and outlet circulating pipes of the preposed pre-cooling/heating device (4), the post-posed surface cooler (7) and the heater (9) are provided with waterway electric valves respectively. The energy-saving device of the heat pipe counter flow back-heating air-conditioning box has the characteristics of strong back-heating capacity and good controllability.

Description

Energy-saving device of heat pipe counter flow back-heating air-conditioning box
Technical field
The present invention relates to a kind of energy-saving device of heat pipe counter flow back-heating air-conditioning box.
Background technology
The temperature of air, humidity are two important parameters that air-conditioning process need be controlled, and especially control is particularly strict in the technological air conditioning system.In summer condition, usually adopt surface cooler that air is carried out dehumidification treatments, because dehumidification process makes surface cooler apparatus dew point temperature be lower than the pairing dew-point temperature of room air parameter, be easy to the problem that causes the dew point wind pushing temperature low excessively, and in order to prevent that room temperature is lower than the design parameter lower limit, just need carry out manually heat again, thereby cause serious cold-hot counteraction situation the surface cooler outlet air.In order to address this problem, can consider hot-air before the surface cooler and the cold air behind the surface cooler are carried out heat exchange, promptly air is carried out backheat, reduce the generation of cold-hot counteraction.Generally can consider following scheme for this reason, the one, use the air to air heat exchanger backheat, but this method requires the heat exchange area of heat exchanger big, and require air in unit, to realize turning back, exploitativeness is relatively poor, and is difficult to the air backheating temperature is controlled; The 2nd, heat exchange coil is set before and after the surface cooler, adopt and force the water circulation to realize heat transmission, can flexible modulation air backheating temperature, but water pump will consume a part of electric energy, heat transfer temperature difference is bigger during heat convection simultaneously, makes the recuperation of heat ability be subjected to certain limitation; Utility model patent 02240565.8 utilizes the heat pipe boiling heat transfer coefficient to reach the characteristics of unidirectional heat transfer greatly, propose to adopt integrated thermal to transmit the scheme of front and back heat exchange coil heat, has energy-conservation preferably value, but reckon without following two aspect problems: the one, the heat pipe heat exchanging temperature constant potential difference that causes conducting heat is big, has lost the defective of backheat ability to a certain extent; The 2nd, the integrated thermal poor controllability is difficult to the backheat air themperature is control effectively.These problems make the practicality of this method greatly reduce.
Summary of the invention
The technical problem to be solved in the present invention provides the energy-saving device of heat pipe counter flow back-heating air-conditioning box that a kind of backheat ability is strong, controllability is good.
In order to solve the problems of the technologies described above, the invention provides a kind of energy-saving device of heat pipe counter flow back-heating air-conditioning box, comprise air conditioning box body, return air inlet and new wind inlet are set respectively in the porch of air conditioning box body, set out the air port in the exit of air conditioning box body; The flow direction according to wind in air conditioning box body sets gradually fore filter, preposition precooling/hot device, adiabatic atomizing humidifier, preposition heat absorption coil pipe group, rearmounted surface cooler, rearmounted heat release coil pipe group, heater, pressure fan and post-filter; Preposition heat absorption coil pipe group and rearmounted heat release coil pipe group are connected by heat pipe heat; Water route electrically operated valve I is set on the Inlet and outlet water circulation pipe of preposition precooling/hot device, water route electrically operated valve II is set on the Inlet and outlet water circulation pipe of rearmounted surface cooler, water route electrically operated valve III is set on the Inlet and outlet water circulation pipe of heater.
Improvement as energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention: be provided with return air temperature sensor in the return air inlet, thermoregulator links to each other with return air temperature sensor, water route electrically operated valve I and water route electrically operated valve III signal respectively.
Further improvement as energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention: be provided with humidity sensor in the return air inlet, temperature sensor be set in the air side of rearmounted surface cooler; Humidistat links to each other with temperature sensor signal with humidity sensor, water route electrically operated valve I, water route electrically operated valve II respectively.
Further improvement as energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention: preposition heat absorption coil pipe group is made up of at least 2 preposition heat absorption coil pipe, and rearmounted heat release coil pipe group is made up of the rearmounted heat release coil pipe that quantity equals preposition heat absorption coil pipe; Each preposition heat absorption coil pipe is connected with a corresponding rearmounted heat release coil pipe by a heat pipe.
Further improvement as energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention: in preposition heat absorption coil pipe and rearmounted heat release coil pipe, refrigerant is set, for example optional water of this refrigerant.
In the present invention, because preposition heat absorption coil pipe group is made up of several separate preposition heat absorption coil pipes, equally, rearmounted heat release coil pipe group also is made up of several separate rearmounted heat release coil pipes, and utilize a plurality of heat pipes former and later two independent heat exchange coils to be connected in twos (promptly to link to each other with rearmounted heat release coil pipe near rearmounted surface cooler near the preposition heat absorption coil pipe of rearmounted surface cooler according to from inside to outside corresponded manner, link to each other with rearmounted heat release coil pipe away from the preposition heat absorption coil pipe of rearmounted surface cooler) away from rearmounted surface cooler, form unique countercurrent flow structure, reduced the heat transfer potential difference, effectively improved the backheat ability, and adopted single coil pipe group to compare to have clear superiority.
The present invention is used for heat pipe one-way heat conduction characteristics the backheat of the processed air of air-conditioning box, connected mode by above-mentioned preposition heat absorption coil pipe group and rearmounted heat release coil pipe group, the realization countercurrent flow is arranged, make the air of wanting precooling and will promote the backheat effect by countercurrent flow by hot again air, effectively avoided the cold-hot counteraction situation; By preposition precooling/hot device is set, also solved the problem that simple use heat pipe is difficult to carry out the control of backheat wind pushing temperature simultaneously.
The present invention is by being provided with preposition precooling/hot device, and the heat exchange amount of utilizing the return air temperature signal to regulate preposition precooling/hot device or heater by the thermoregulator by-pass valve control is effectively controlled the backheat wind pushing temperature, has satisfied the needs of indoor sensible heat load.Utilize the return air moisture signal to establish the dew point wind pushing temperature of rearmounted surface cooler again by humidistat, and the feedback signal of temperature sensor of utilizing the air side of rearmounted surface cooler is controlled the heat exchange amount of rearmounted surface cooler, make that setting dew point is guaranteed, promptly satisfied the needs of decontamination chamber internal latent heat load.Under the operating mode, this air-conditioning box still can carry out hot wet process to air according to traditional preheating, adiabatic humidiflcation and hot again pattern in the winter time, but heat pipe heat exchanging system and rearmounted surface cooler are not worked.Backheat ability of the present invention is strong, and controllability is good, and system's structure is novel, implement easily, effectively reduced the cold-hot counteraction phenomenon in the air-treatment, have bigger energy-conservation value, be specially adapted to place, as clean room, textile mills etc. to air temperature, humidity requirement strictness.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention;
Fig. 2 is the control schematic diagram of Fig. 1.
The specific embodiment
Fig. 1~Fig. 2 comprises air conditioning box body 22 in conjunction with having provided a kind of energy-saving device of heat pipe counter flow back-heating air-conditioning box, and return air inlet 1 and new wind inlet 2 are set respectively in the porch of air conditioning box body 22, sets out air port 12 in the exit of air conditioning box body 22; The flow direction according to wind in air conditioning box body 22 sets gradually fore filter 3, preposition precooling/hot device 4, adiabatic atomizing humidifier 5, preposition heat absorption coil pipe group 6, rearmounted surface cooler 7, rearmounted heat release coil pipe group 8, heater 9, pressure fan 10 and post-filter 11.
Preposition heat absorption coil pipe group 6 is made up of 3 arranged side by side and separate preposition heat absorption coil pipes 61, and rearmounted heat release coil pipe group 8 is made up of 3 arranged side by side and separate rearmounted heat release coil pipes 81; Heat pipe heat 13 is made up of 3 heat pipes 131.A preposition heat absorption coil pipe 61 near rearmounted surface cooler 7 is connected by the rearmounted heat release coil pipe 81 of a heat pipe 131 with close rearmounted surface cooler 7; Be connected with a rearmounted heat release coil pipe 81 by another root heat pipe 131 away from a preposition heat absorption coil pipe 61 of rearmounted surface cooler 7 away from rearmounted surface cooler 7; That the preposition heat absorption coil pipe 61 that is positioned at the centre is connected with that the rearmounted heat release coil pipe 81 that is positioned at the centre by another heat pipe 131; Thereby form 3 independently heat pipe heat exchanging systems.In each preposition heat absorption coil pipe 61, each rearmounted heat release coil pipe 81 and every heat pipe 131, all fill and establish refrigerant, the optional water of this refrigerant.
Water route electrically operated valve I14 is set on the Inlet and outlet water circulation pipe of preposition precooling/hot device 4, water route electrically operated valve II15 is set on the Inlet and outlet water circulation pipe of rearmounted surface cooler 7, water route electrically operated valve III16 is set on the Inlet and outlet water circulation pipe of heater 9.That is, water route electrically operated valve I14 is used to control the water circulation of preposition precooling/hot device 4, and water route electrically operated valve II15 is used to control the water circulation of rearmounted surface cooler 7, and water route electrically operated valve III16 is used for the water circulation of control heater 9.
In return air inlet 1, be respectively equipped with return air temperature sensor 17 and humidity sensor 18, temperature sensor 19 be set in the air side of rearmounted surface cooler 7; Thermoregulator 20 links to each other with return air temperature sensor 17, water route electrically operated valve I14 and water route electrically operated valve III16 signal respectively; Humidistat 21 links to each other with humidity sensor 18, water route electrically operated valve I14, water route electrically operated valve II15 and temperature sensor 19 signals respectively.
During the actual use of energy-saving device of heat pipe counter flow back-heating air-conditioning box of the present invention, water route electrically operated valve I14, water route electrically operated valve II15 all link to each other with air-conditioner circulating water system with the Inlet and outlet water circulation pipe of water route electrically operated valve III16; New wind enters in the air conditioning box body 22 from new wind inlet 2, and return air inlet 1 links to each other with backwind tube; Air after the processing is sent into the air-conditioning ajutage through air outlet 12 under the effect of pressure fan 10.Concrete mode of operation is divided into following 2 kinds:
1, summer condition:
Adiabatic atomizing humidifier 5 is not worked; In running order by the heat pipe heat exchanging system that preposition heat absorption coil pipe group 6, rearmounted heat release coil pipe group 8 and heat pipe heat 13 are formed.
Return air temperature sensor 17 passes to thermoregulator 20 with the return air temperature signal that records, and thermoregulator 20 is controlled the aperture of water route electrically operated valve I14 and water route electrically operated valve III16 according to above-mentioned return air temperature; Thereby reach the adjusting indoor temperature, satisfy the purpose of indoor sensible heat load demand.In adjustment process, when water route electrically operated valve I14 is tending towards closing and return air temperature is lower than under the air-conditioned room design temperature in limited time, thermoregulator 20 switches to the aperture of control water route electrically operated valve III16, thereby regulates heater 9 work.When water route electrically operated valve III16 is tending towards closing and return air temperature is higher than on the air-conditioned room design temperature in limited time, thermoregulator 20 switches to the aperture of control water route electrically operated valve I14, thereby regulates preposition precooling/hot device 4 work.Under this summer condition, preposition precooling/hot device 4 is a forecooler.
Humidity sensor 18 passes to humidistat 21 with the return air moisture signal that records, and humidistat 21 is set the dew point wind pushing temperature of rearmounted surface cooler 7 according to above-mentioned return air moisture signal.It is as follows to set rule: when return air humidity during greater than air-conditioned room humidity capping, reduce dew point wind pushing temperature setting value; Set down in limited time less than air-conditioned room humidity when return air humidity, increase dew point wind pushing temperature setting value; When return air humidity was between air-conditioned room humidity setting district, former dew point wind pushing temperature setting value remained unchanged.
Temperature sensor 19 passes to humidistat 21 with the dew point blast temperature signals that records, and humidistat 21 compares the dew point wind pushing temperature that records and the dew point wind pushing temperature of setting; When the dew point wind pushing temperature that records when setting the dew point wind pushing temperature, humidistat 21 order water route electrically operated valve II15 open greatly; When the dew point wind pushing temperature that records when setting the dew point wind pushing temperature, humidistat 21 order water route electrically operated valve II15 turn down; Thereby reach the adjusting indoor humidity, satisfy the purpose of indoor latent heat load demand.
2, winter condition:
Different with above-mentioned summer condition, during operating mode, water route electrically operated valve II15 is in closed condition, is not worked under the operating mode in the winter time by heat pipe heat exchanging system and rearmounted surface cooler 7 that preposition heat absorption coil pipe group 6, rearmounted heat release coil pipe group 8 and heat pipe heat 13 are formed in the winter time.
Device winter condition of the present invention down can be routinely preheating, adiabatic humidiflcation, heat pattern is handled air again: after new, return air mixes, under the effect of pressure fan 10, at first through the filtration of fore filter 3, then by preposition precooling/hot device 4 preheatings, then arrive saturated by adiabatic atomizing humidifier 5 humidifications, by heater 9 air heat is arrived suitable wind pushing temperature again, after discharge from air outlet 12 after the filtration once more of post-filter 11.Under this winter condition, preposition precooling/hot device 4 is a preheater.
Return air temperature sensor 17 passes to thermoregulator 20 with the return air temperature signal that records, and thermoregulator 20 is controlled water route electrically operated valve III16 according to above-mentioned return air temperature.When return air temperature is higher than the indoor air temperature in air conditioned building capping, thermoregulator 20 control water route electrically operated valve III16 turn down, when being lower than indoor air temperature in air conditioned building, return air temperature sets down in limited time, thermoregulator 20 control water route electrically operated valve III16 leave greatly, thereby reach the adjusting indoor temperature, satisfy the purpose of indoor sensible heat load demand.
Humidity sensor 18 passes to humidistat 21 with the moisture signal that records, and humidistat 21 is set dew point wind pushing temperature behind the adiabatic atomizing humidifier 5 according to the return air moisture signal.It is as follows to set rule: when return air humidity during greater than air-conditioned room humidity capping, reduce dew point wind pushing temperature setting value; Set down in limited time less than air-conditioned room humidity when return air humidity, increase dew point wind pushing temperature setting value; When return air humidity was between air-conditioned room humidity setting district, former dew point wind pushing temperature setting value remained unchanged.
Temperature sensor 19 passes to humidistat 21 with the dew point blast temperature signals that records, and humidistat 21 compares the dew point wind pushing temperature that records and the dew point wind pushing temperature of setting; When the dew point wind pushing temperature that records when setting the dew point wind pushing temperature, humidistat 21 order water route electrically operated valve I14 open greatly; When the dew point wind pushing temperature that records when setting the dew point wind pushing temperature, humidistat 21 order water route electrically operated valve I14 turn down; Thereby reach the adjusting indoor humidity, satisfy the purpose of indoor latent heat load demand.
Under the operating mode, adiabatic atomizing humidifier 5 is not regulated in the winter time, always by the design conditions operation, to guarantee all the time preheated air to be handled saturation state.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims (6)

1. energy-saving device of heat pipe counter flow back-heating air-conditioning box, comprise air conditioning box body (22), it is characterized in that: return air inlet (1) and new wind inlet (2) are set respectively in the porch of described air conditioning box body (22), set out air port (12) in the exit of air conditioning box body (22); The flow direction according to wind in air conditioning box body (22) sets gradually fore filter (3), preposition precooling/hot device (4), adiabatic atomizing humidifier (5), preposition heat absorption coil pipe group (6), rearmounted surface cooler (7), rearmounted heat release coil pipe group (8), heater (9), pressure fan (10) and post-filter (11); Described preposition heat absorption coil pipe group (6) and rearmounted heat release coil pipe group (8) are connected by heat pipe heat (13); On the Inlet and outlet water circulation pipe of described preposition precooling/hot device (4) water route electrically operated valve I (14) is set, on the Inlet and outlet water circulation pipe of rearmounted surface cooler (7) water route electrically operated valve II (15) is set, water route electrically operated valve III (16) is set on the Inlet and outlet water circulation pipe of heater (9).
2. energy-saving device of heat pipe counter flow back-heating air-conditioning box according to claim 1, it is characterized in that: be provided with return air temperature sensor (17) in the described return air inlet (1), thermoregulator (20) links to each other with return air temperature sensor (17), water route electrically operated valve I (14) and water route electrically operated valve III (16) signal respectively.
3. energy-saving device of heat pipe counter flow back-heating air-conditioning box according to claim 2 is characterized in that: be provided with humidity sensor (18) in the described return air inlet (1), in the air side of rearmounted surface cooler (7) temperature sensor (19) be set; Humidistat (21) links to each other with humidity sensor (18), water route electrically operated valve I (14), water route electrically operated valve II (15) and temperature sensor (19) signal respectively.
4. energy-saving device of heat pipe counter flow back-heating air-conditioning box according to claim 3, it is characterized in that: described preposition heat absorption coil pipe group (6) is made up of at least 2 preposition heat absorption coil pipe (61), and rearmounted heat release coil pipe group (8) is made up of the rearmounted heat release coil pipe (81) that quantity equals preposition heat absorption coil pipe (61); Each preposition heat absorption coil pipe (61) is connected with a corresponding rearmounted heat release coil pipe (81) by a heat pipe (131).
5. energy-saving device of heat pipe counter flow back-heating air-conditioning box according to claim 4 is characterized in that: in preposition heat absorption coil pipe (61) and rearmounted heat release coil pipe (81) refrigerant is set.
6. energy-saving device of heat pipe counter flow back-heating air-conditioning box according to claim 5 is characterized in that: described refrigerant is a water.
CN2010101041918A 2010-01-28 2010-01-28 Energy-saving device of heat pipe counter flow back-heating air-conditioning box Expired - Fee Related CN101776319B (en)

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CN2010101041918A CN101776319B (en) 2010-01-28 2010-01-28 Energy-saving device of heat pipe counter flow back-heating air-conditioning box

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Application Number Priority Date Filing Date Title
CN2010101041918A CN101776319B (en) 2010-01-28 2010-01-28 Energy-saving device of heat pipe counter flow back-heating air-conditioning box

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CN101776319B CN101776319B (en) 2012-05-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287878A (en) * 2011-04-14 2011-12-21 友达光电股份有限公司 External air conditioning system
CN102410582A (en) * 2011-11-07 2012-04-11 太仓新凯裕电子科技有限公司 Air conditioning system
CN102425828A (en) * 2011-09-15 2012-04-25 上海交通大学 Energy saving device suitable for accurate control air conditioner in machine room
CN102818319A (en) * 2012-09-10 2012-12-12 浙江中孚环境设备有限公司 Air conditioning unit for spun-bonded melt-blown non-woven process
CN111637574A (en) * 2020-06-12 2020-09-08 上海朗绿建筑科技股份有限公司 Fresh air handling unit capable of being accurately regulated and controlled and regulation and control method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287878A (en) * 2011-04-14 2011-12-21 友达光电股份有限公司 External air conditioning system
CN102287878B (en) * 2011-04-14 2014-04-16 友达光电股份有限公司 External air conditioning system
CN102425828A (en) * 2011-09-15 2012-04-25 上海交通大学 Energy saving device suitable for accurate control air conditioner in machine room
CN102425828B (en) * 2011-09-15 2013-08-07 上海交通大学 Energy saving device suitable for accurate control air conditioner in machine room
CN102410582A (en) * 2011-11-07 2012-04-11 太仓新凯裕电子科技有限公司 Air conditioning system
CN102818319A (en) * 2012-09-10 2012-12-12 浙江中孚环境设备有限公司 Air conditioning unit for spun-bonded melt-blown non-woven process
CN111637574A (en) * 2020-06-12 2020-09-08 上海朗绿建筑科技股份有限公司 Fresh air handling unit capable of being accurately regulated and controlled and regulation and control method

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