CN102829519B - Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger - Google Patents

Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger Download PDF

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Publication number
CN102829519B
CN102829519B CN201210344621.2A CN201210344621A CN102829519B CN 102829519 B CN102829519 B CN 102829519B CN 201210344621 A CN201210344621 A CN 201210344621A CN 102829519 B CN102829519 B CN 102829519B
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heat exchanger
air
water source
fresh air
dehumidifying
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CN102829519A (en
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姚永明
倪庆海
赵红梅
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JIANGSU HIGH-TECH APPLIED SCIENCE RESEARCH INSTITUTE Co Ltd
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JIANGSU HIGH-TECH APPLIED SCIENCE RESEARCH INSTITUTE Co Ltd
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Abstract

The invention discloses a dehumidifying unit of a double cold source all fresh air heat pump provided with a cold carrying heat exchanger. The dehumidifying unit is applied to an environment in which return air is not suitable to be adopted or the dehumidifying unit has a special purpose specially designed for control temperature and humidity independently. The dehumidifying unit of the double cold source all fresh air heat pump provided with the cold carrying heat exchanger comprises a primary surface air cooler and a secondary water source and air source heat pump temperature regulating and dehumidifying system, wherein a refrigerant is directly evaporated in the secondary water source and air source heat pump temperature regulating and dehumidifying system. The water source and air source heat pump temperature regulating and dehumidifying system has a structure that a water source and an air source are connected and installed in series. A water source heat exchanger is a temperature regulating device provided with the cold carrying heat exchanger. The cold carrying heat exchanger and the water source heat exchanger are installed in a combined frame. The dehumidifying unit of the double cold source all fresh air heat pump provided with the cold carrying heat exchanger has the functions of refrigerating, dehumidifying, regulating temperate, heating and the like. With the adoption of the combined structure, the structure is divided into upper and lower layers. The lower layer is a fresh air processing system while the upper layer is an exhaust processing system, so that the dehumidifying unit of the double cold source all fresh air heat pump provided with the cold carrying heat exchanger is high in integration level and convenient to install.

Description

With two low-temperature receiver all fresh air heat pump dehumidifying units of refrigerating heat exchanger
Technical field
The present invention relates to a kind of two low-temperature receiver all fresh air heat pump dehumidifying units of novel band refrigerating heat exchanger, two low-temperature receiver is specifically adopted summer to carry out degree of depth dehumidifying and refrigeration to all-fresh air, winter starting heat pump heats new wind, season in spring and autumn starts refrigerating heat exchanger and carries out temperature adjusting and dehumidifying to all-fresh air, belongs to refrigerating machine field.
Background technology
Novel wind-dehumidifier is mainly used in needs the new wind of a large amount of introduction, but do not wish that increase air-conditioned room is cold, the place of humidity load, require that unit accurately can control dry-bulb temperature and the dew-point temperature of air-out in the scope that new air temperature is wider, being specially adapted to medicine and hygiene fields, military project, chemical industry, hot laboratory, Animal Lab., paint shop etc. has dehumidifying, temperature requirement but do not allow to adopt the place of return air.
The whole of Novel wind-dehumidifier process are outdoor new wind, adopt the mode that direct sending is in line, belong to single flow air treatment system.Traditional processing mode water chiller-heater unit adds air-treatment unit to realize, the general arranged cold of air-treatment unit (heat) water coil and assisted heating device; Its shortcoming is very low based on the cold water temperature of all-fresh air dehumidifying needs, refrigeration unit poor efficiency; Special in plum rain season, temperature is when high humility is not king-sized, and all-fresh air not only needs refrigerated dehumidification but also need reheating, now reduces energy consumption and has become key issue.
At present, most widely used on market is plain edition CT dehumidifier, this is a kind of with air-cooled and temperature-adjustable dehumidifier that is water-cooled 2 condensers, for the all-fresh air of summer high temperature high humidity, plain edition dehumidifier can not meet the dehumidification requirements of this environment: plain edition dehumidifier does not have enough colds new wind dew-point temperature to be controlled to blow at below 11g/kg, so often adopt the mode of two-stage plain edition dehumidifier series connection to dehumidify, for the refrigerating capacity of the object prime dehumidifier reaching degree of depth dehumidifying often designs bigger than normal, thus the mode of this tandem working often brings many problems: along with the change of all-fresh air state point, front stage dehumidifier live load changes greatly, also more difficult to the control of dew-point temperature, and the rear class dehumidifier EAT being in downstream is low, evaporator operation efficiency is low, cause the duty of complete machine poor, often there will be the phenomenon of shutting down because of evaporimeter frosting, bring inconvenience thus to the design and running of system.
The domestic You Jijia unit of two cold source full fresh air dehumidifier develops, and on energy-conservation basis, function and implementation respectively have partially long; Some employing heat pumps recover energy, but lack air reheating to the regulatory function of wind pushing temperature, and particularly larger to humidity transition season application is limited to some extent; What have has the function that air reheating regulates wind pushing temperature, but the heat pump that cannot realize winter reclaims.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art part, propose a kind of two low-temperature receiver all fresh air heat pump dehumidifying units of novel band refrigerating heat exchanger: adopt summer two low-temperature receiver to carry out degree of depth dehumidifying and refrigeration to all-fresh air, winter starting heat pump heats new wind, and season in spring and autumn starts refrigerating heat exchanger and carries out temperature adjusting and dehumidifying to all-fresh air.
For achieving the above object, the present invention is by the following technical solutions:
A kind of two low-temperature receiver all fresh air heat pump dehumidifying units with refrigerating heat exchanger, comprise air source heat pump temperature adjusting and dehumidifying system and water source heat-exchange system that prime surface cooler and rear class cold-producing medium directly evaporate, described air source heat pump temperature adjusting and dehumidifying system is connected with described water source heat-exchange system, and wherein water source heat-exchange system is configured with refrigerating heat exchanger, this refrigerating heat exchanger is arranged in combined frame in the lump.
Described refrigerating heat exchanger is nested on the water source heat exchanger in water source heat-exchange system, and its refrigerating medium closed circuit is connected and composed successively by water source heat exchanger, magnetic valve, refrigerating heat exchanger, water circulating pump, water source heat exchanger.
Described air source heat pump temperature adjusting and dehumidifying system is connected with described water source heat-exchange system and is formed refrigeration cycle and heat closed circuit; Described refrigeration cycle by compressor, cross valve, water source heat exchanger, air exhaust heat exchange device, heat liquid-dividing head, the first check valve, reservoir, filter, heat pump expansion valve, the second check valve, refrigeration liquid-dividing head, fresh air heat exchanger, cross valve, gas-liquid separator, compressor connect and compose successively; Described heat loop back compressors, cross valve, fresh air heat exchanger, refrigeration liquid-dividing head, the 3rd check valve, reservoir, filter, heat pump expansion valve, the 4th check valve, heat liquid-dividing head, air exhaust heat exchange device, water source heat exchanger, cross valve, gas-liquid separator, compressor connect and compose successively.
Between described compressor and gas-liquid separator, low-pressure meter is installed, installation high-voltage table between compressor and cross valve, setting pressure controller between low-pressure meter and high pressure gauge.
The exit of described air exhaust heat exchange device is provided with exhaust blower; The exit of described fresh air heat exchanger and refrigerating heat exchanger is provided with pressure fan.
In the import department of described air exhaust heat exchange device, electric air volume adjusting valve is installed.
beneficial effect:
The present invention includes water source+air source heat pump temperature adjusting and dehumidifying system that prime cold (heat) water meter cooler and rear class cold-producing medium directly evaporate, the low dew point that the relay of two low-temperature receiver two-stage effectively can realize minimum 9 DEG C controls.The heat pump of the water source heat exchanger (nested refrigerating heat exchanger) of rear class and air-source series connection, the function such as can realize refrigeration, dehumidifying, temperature adjustment, heat.For adapting to the requirement of energy saving standard, cooling in summer adopts condensation, winter heating discharges after adopting heat pump techniques to reclaim the energy of return air, and transition season adopts condensation to regulate wind pushing temperature, substantially increases the Energy Efficiency Ratio of unit.
The present invention is particularly suitable for being specially adapted to medicine and hygiene fields, military project, chemical industry, hot laboratory, Animal Lab., paint shop etc. dehumidifying, temperature requirement but do not allow to adopt the place of return air.
accompanying drawing illustrates:
Fig. 1 is flowage structure schematic diagram of the present invention.
Wherein: 1, compressor; 2, low-pressure meter; 3, liquid/gas separator; 4, pressure controller; 5, high pressure gauge; 6, cross valve; 7, the 4th check valve; 8, the second check valve; 9, expansion valve; 10, filter; 11, reservoir; 12, the first check valve; 13, the 3rd check valve; 14, electric air volume adjusting valve; 15, air exhaust heat exchange device, 16, exhaust blower; 17, knockout is heated; 18, surface cooler; 19, freeze knockout; 20, fresh air heat exchanger; 21, water source heat exchanger; 22, water circulating pump; 23, refrigerating heat exchanger; 24, magnetic valve; 25, pressure fan; 26, combined frame.
concrete implementing method:
As shown in the figure, two low-temperature receiver all fresh air heat pump dehumidifying units of the band refrigerating heat exchanger of the present invention's design, when unit starting cool-down dehumidification, when two low-temperature receiver all fresh air heat pump dehumidifying in summer unit works, by prime cold (heat) water meter cooler to after pre-cooling of fresh air, the air source heat pump system directly evaporated by rear class cold-producing medium again or water source heat exchanger (driving refrigerating heat exchanger)+air source heat pump temperature adjusting and dehumidifying system carry out degree of depth dehumidifying and refrigeration, condensation heat side is discharged separately through air exhaust heat exchange device, side is by sending and partly discharged by air exhaust heat exchange device after refrigerating heat exchanger heating wind pushing temperature, the relay of two low-temperature receiver two-stage effectively can realize the low dew point control of minimum 9 DEG C.
When unit starting temperature adjusting and dehumidifying, spring and autumn seasonal zone refrigerating heat exchanger two low-temperature receiver all fresh air heat pump dehumidifying units work time, prime cold (heat) water meter cooler quits work, the water source that rear class cold-producing medium directly evaporates+air source heat pump system starts kind of refrigeration cycle, meanwhile water source heat exchanger drives refrigerating heat exchanger to start, carry out temperature adjustment, in the import department of unit upper strata air exhaust heat exchange device, electric air volume adjusting valve is installed.When starting temperature adjusting and dehumidifying system and dehumidifying, regulate electric air volume adjusting valve, change the air quantity by air exhaust heat exchange device, affect the distribution of condensation heat between air exhaust heat exchange device and water source heat exchanger, reach the object regulating wind pushing temperature.
When unit starting heats, when winter, the two low-temperature receiver all fresh air heat pump dehumidifying units with refrigerating heat exchanger worked, by prime cold (heat) water meter cooler to after fresh air preheating, the air source heat pump system (water source part does not work) that rear class cold-producing medium directly evaporates starts heat pump and heats, close electric air volume adjusting valve simultaneously, allow return air all carry out maximum energy regenerating by air exhaust heat exchange device.
Prime cold (heat) water meter cooler, summer leads to cold water, and winter leads to hot water, and season in spring and autumn closes, and in order to improve the efficiency of hot water or cold water's unit, suitably can improve cold water supply water temperature to 12-15 DEG C with reduce hot water supply water temperature to 30-35 DEG C.
When rear class water source+air source heat pump system runs on cooling condition, cross valve starts refrigeration setting; When running on heating condition, cross valve startup heats setting, and water source part does not work, and electric air volume adjusting valve is closed completely, allows return air all carry out maximum energy regenerating by air exhaust heat exchange device.
During system cloud gray model temperature adjusting and dehumidifying, magnetic valve, water circulating pump are opened, and electric air volume adjusting valve carries out aperture adjustment according to air-supply working condition requirement, and water source heat exchanger, by the operation of refrigerating heat exchanger, shares partial condensation heat, heat up after realizing dehumidifying; During system cloud gray model cool-down dehumidification, magnetic valve, water circulating pump are closed, and electric air volume adjusting valve is opened completely, and condensation heat is all born by air exhaust heat exchange device.
Structure adopts fabricated structure, and frame is divided into two-layer up and down, and lower floor is fresh air treatment system, and upper strata is Air exhaust system, and integrated level is high, easy for installation.
Compressor adopts scroll compressor, and water source heat exchanger adopts plate type heat exchanger, and other heat exchangers adopt copper pipe aluminum fin form.
Control section, adopts PLC, Based Intelligent Control, touch Chinese and English display man-machine interface.

Claims (4)

1. the two low-temperature receiver all fresh air heat pump dehumidifying units with refrigerating heat exchanger, it is characterized in that: comprise air source heat pump temperature adjusting and dehumidifying system and water source heat-exchange system that prime surface cooler (18) and rear class cold-producing medium directly evaporate, described air source heat pump temperature adjusting and dehumidifying system is connected with described water source heat-exchange system, and wherein water source heat-exchange system is configured with refrigerating heat exchanger (23), this refrigerating heat exchanger (23) is arranged in combined frame (26) in the lump; Combined frame (26) is divided into upper and lower two-layer, and lower floor is fresh air treatment system, and upper strata is Air exhaust system;
Described refrigerating heat exchanger (23) is nested on the water source heat exchanger in water source heat-exchange system, and its refrigerating medium closed circuit is connected and composed successively by water source heat exchanger (21), magnetic valve (24), refrigerating heat exchanger (23), water circulating pump (22), water source heat exchanger (21); Described air source heat pump temperature adjusting and dehumidifying system is connected with described water source heat-exchange system and is formed refrigeration cycle and heat closed circuit; Described refrigeration cycle by compressor (1), cross valve (6), water source heat exchanger (21), air exhaust heat exchange device (15), heat liquid-dividing head (17), the first check valve (12), reservoir (11), filter (10), expansion valve (9), the second check valve (8), refrigeration liquid-dividing head (19), fresh air heat exchanger (20), cross valve (6), gas-liquid separator (3), compressor (1) connect and compose successively; Described heat loop back compressors (1), cross valve (6), fresh air heat exchanger (20), refrigeration liquid-dividing head (19), the 3rd check valve (13), reservoir (11), filter (10), expansion valve (9), the 4th check valve (7), heat liquid-dividing head (17), air exhaust heat exchange device (15), water source heat exchanger (21), cross valve (6), gas-liquid separator (3), compressor (1) connect and compose successively.
2. two low-temperature receiver all fresh air heat pump dehumidifying units of band refrigerating heat exchanger according to claim 1, it is characterized in that, low-pressure meter (2) is installed between described compressor (1) and gas-liquid separator (3), installation high-voltage table (5) between compressor (1) and cross valve (6), setting pressure controller (4) between low-pressure meter (2) and high pressure gauge (5).
3. two low-temperature receiver all fresh air heat pump dehumidifying units of band refrigerating heat exchanger according to claim 1 and 2, it is characterized in that, the exit of described air exhaust heat exchange device (15) is provided with exhaust blower (16); The exit of described fresh air heat exchanger (20) and refrigerating heat exchanger (23) is provided with pressure fan (25).
4. two low-temperature receiver all fresh air heat pump dehumidifying units of band refrigerating heat exchanger according to claim 1, is characterized in that, be provided with electric air volume adjusting valve (14) in the import department of described air exhaust heat exchange device (15).
CN201210344621.2A 2012-09-17 2012-09-17 Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger Active CN102829519B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108954604A (en) * 2018-05-22 2018-12-07 北京艾尔绿能科技有限公司 A kind of fresh air integral system of the comprehensive distribution of upper and lower level
CN110617567A (en) * 2019-08-30 2019-12-27 江苏致远高科能源科技有限公司 Method for designing double-cold-source fresh air dehumidifier according to cold quantity division ratio

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2305593Y (en) * 1996-11-25 1999-01-27 许福盛 Water saving indoor machine of air conditioner
CN2409436Y (en) * 2000-01-24 2000-12-06 潘启川 Calorie recovering device for dehumidifying air-conditioner
CN1699855A (en) * 2005-06-07 2005-11-23 威海际高制冷空调设备有限公司 One-unit double system household ventilating dehumidifier
CN202835624U (en) * 2012-09-17 2013-03-27 江苏高科应用科学研究所有限公司 Double-cold-source full-fresh-air heat pump dehumidification machine set with cold-source-carrying heat exchanger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2816789B2 (en) * 1992-12-01 1998-10-27 株式会社日立製作所 Cold water supply device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2305593Y (en) * 1996-11-25 1999-01-27 许福盛 Water saving indoor machine of air conditioner
CN2409436Y (en) * 2000-01-24 2000-12-06 潘启川 Calorie recovering device for dehumidifying air-conditioner
CN1699855A (en) * 2005-06-07 2005-11-23 威海际高制冷空调设备有限公司 One-unit double system household ventilating dehumidifier
CN202835624U (en) * 2012-09-17 2013-03-27 江苏高科应用科学研究所有限公司 Double-cold-source full-fresh-air heat pump dehumidification machine set with cold-source-carrying heat exchanger

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