CN101413730B - Energy-saving type refrigeration and dehumidification integrated machine - Google Patents

Energy-saving type refrigeration and dehumidification integrated machine Download PDF

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Publication number
CN101413730B
CN101413730B CN2008102232328A CN200810223232A CN101413730B CN 101413730 B CN101413730 B CN 101413730B CN 2008102232328 A CN2008102232328 A CN 2008102232328A CN 200810223232 A CN200810223232 A CN 200810223232A CN 101413730 B CN101413730 B CN 101413730B
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regenerator
valve
evaporimeter
condenser
indoor
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CN101413730A (en
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杨雁梅
钱晓峰
柯钢
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BEIJING KOOLAND SCIENCE AND TECHNOLOGY Co Ltd
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BEIJING KOOLAND SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The invention belongs to the refrigeration technical field and particularly relates to an energy-saving refrigeration dehumidifying all-in-one machine. The machine is composed of a compressor, an outdoor condenser, an indoor condenser, a heat regenerator, an evaporator and electronic expansion valves, wherein, the outdoor condenser is connected with the indoor condenser in parallel, and each condenser is corresponding to one electronic expansion valve. When heating up or constant temperature dehumidifying is needed, the indoor condenser and the heat regenerator work. The design of the invention has the functions of refrigeration dehumidifying, heating up or constant temperature dehumidifying, and low-temperature dehumidifying. As the indoor condenser and the heat regenerator are used, the energy consumption is reduced and the dehumidifying capacity is improved. By optimal control, the machine of the invention can adjust the ratio of refrigerants under different working conditions, thus realizing optimal utilization and recovery of energy. The machine of the invention can be used in the fields of a refrigeratory, an artificial climate chamber and the like with the dehumidifying requirement.

Description

Energy-saving type refrigeration and dehumidification integrated machine
Technical field
The invention belongs to the cooled dehumidifier unit of refrigeration technology field, particularly a kind of energy-saving refrigeration and dehumidification integrated machine is used to have the occasion such as freezer, phjytotron of low temperature or low humidity demand.
Background technology
Freeze drying is the comparatively general the earliest dehumanization method of a kind of use, is widely used in production fields such as machine-building, optical instrument, electronics, food, chemistry, medicine, industrialized agriculture.Freeze drying is to utilize humid air to be cooled to below the dew-point temperature, the dehumanization method that condensed water is removed.
Energy-conservation and environmental protection is the long-term national policy of China, domestic most of refrigeration systems are not installed heat reclamation device at present, a large amount of condensation heat directly enters atmosphere, lose in vain, cause great energy waste, distributing and causing ambient temperature to raise of these heats causes the serious environmental thermal pollution.If use heat recovery technology, working medium condensation exothermic process liberated heat in the kind of refrigeration cycle is reclaimed, can improve energy utilization rate greatly, reduce energy resource consumption and to the pollution of environment.Abroad, obtained prominent achievement, and at home, for the research of condensation heat recovery device aspect with use actually rare for the research of refrigeration unit condensation heat recovery technology.For cooled dehumidifier unit, in dehumidification process,, must carry out heat compensation in order to satisfy constant temperature or intensification demand, conventional method is to adopt mode such as electrical heating to carry out heat compensation, this mode of vulcanizing can cause the consumption of additional energy.Therefore by setting up indoor condenser, condensation heat is recycled, become a kind of effective conservation measures.Existing system such as Fig. 4, shown in Figure 5 that adopts indoor condenser and outdoor condenser parallel connection to utilize condensation heat, the distribution of refrigerant flow of two condensers (indoor condenser 3 among Fig. 4, Fig. 5 and outdoor condenser 2) of flowing through be behind compressor and two condensers before connecting line in carry out (Fig. 4), or behind two condensers, carry out (Fig. 5) in the connecting line before the choke valve 7; By the adjusting of magnetic valve 1 and magnetic valve 2 22 apertures being realized the distribution of indoor and outdoor condenser refrigerant flow.Because the difference of two condensers, the difference (comprising caliber and pipe range) of connecting pipe, installation difference (comprising setting height(from bottom), technology) etc. can cause the inconsistent of two parallel branch resistances, and the inconsistent of two parallel branch resistances can not be eliminated or reduce to this assignment of traffic structure well, therefore in application, tend to occur the phenomenon that cold-producing medium only flows through from a condenser, and first kind of method of salary distribution is owing to be that gas is directly shunted, cause the inhomogeneous of downstream pressure easily, be difficult to refrigerant flow is carried out level and smooth distribution control.
In addition, for constant temperature or intensification freeze drying, particularly low dew point dehumidifying, because the air themperature of evaporator outlet is lower, will certainly bring height to vulcanize demand, by being equipped with regenerative apparatus, as shown in Figure 3, after the cold dry air that evaporimeter comes out heated through regenerator, temperature raise, and has reduced entering indoor refrigeration duty; Room air enters evaporimeter after the regenerator cooling, though refrigerating capacity can reduce slightly, evaporimeter goes out the back temperature to be reduced, help dehumidifying, therefore installing additional of regenerator improved the dehumidifying effect of unit, yet for the system that has used regenerative apparatus, though systematic function has improved, but when low temperature dehumidification and the dehumidifying of low dew point, because the existence of defrosting demand is often carried out defrosting by electrical heating, also there is potential safety hazard in a large amount of consumption that this has not only caused energy.
Summary of the invention
The object of the present invention is to provide a kind of more energy-conservation, use energy-saving type refrigeration and dehumidification integrated machine widely; This energy-saving type refrigeration and dehumidification integrated machine can be regulated temperature smoothly, and can be with the heat recovery of part system works; Compare with equal refrigerated dehumidification machine, dehumidifying effect is stronger, especially is suitable for low temperature, low dew point dehumidifying.
Technical scheme of the present invention is as follows:
Energy-conservation refrigeration and dehumidification integrated machine provided by the invention comprises: link to each other successively and form compressor 1, outdoor condenser 2, reservoir 8, first electric expansion valve 7, evaporimeter 4 and the gas-liquid separator 9 of refrigerating circuit; And the indoor condenser 3 and second electric expansion valve 6 that are connected in compressor 1 output and evaporimeter 4 inputs successively; Energy-conservation freeze drying dehumidifying integrated machine provided by the invention also can comprise a regenerator 5; Described regenerator 5 is connected with described evaporimeter 4 by the air channel; Described outdoor condenser 2, indoor condenser 3 and regenerator 5 all are equipped with blower fan;
Described regenerator 5 fresh inlets and regenerator 5 old wind gas outlets communicate with indoor; Regenerator 5 new wind gas outlets link to each other with evaporimeter 4 air inlets, and evaporimeter 4 gas outlets link to each other with regenerator 5 old wind air inlets; Indoor condenser 3 air inlets, indoor condenser 3 gas outlets communicate with indoor;
The gas outlet of described regenerator 5 old wind air inlets and indoor condenser 3 communicates with indoor, regenerator 5 new wind gas outlets link to each other with evaporimeter 4 air inlets, evaporimeter 4 gas outlets link to each other with regenerator 5 old wind air inlets, and regenerator 5 old wind gas outlets link to each other with indoor condenser 3 air inlets.
On described indoor condenser 3 and second electric expansion valve, 6 connecting lines second reservoir 10 is housed.
Energy-conservation freeze drying dehumidifying integrated machine provided by the invention also can comprise cross valve 13, heat pump electric expansion valve 11, magnetic valve 12, first check valve 16, second check valve 17, the 3rd check valve 18, the 4th check valve the 19, the 5th check valve 20, first triple valve 14 and second triple valve 15;
Described cross valve 13 is installed on described compressor 1 output, and links to each other with gas-liquid separator 9, evaporimeter 4 and outdoor condenser 2 simultaneously;
Described magnetic valve 12 and the 3rd check valve 18, described first check valve 16 and described the 4th check valve 19 are connected in series successively on the bypass connecting line between reservoir 8 outlets and evaporimeter 4 outlets;
Described heat pump electric expansion valve 11 and described second check valve 17 are connected on the connecting line between described outdoor condenser 2 and described first reservoir 8 in parallel;
Described first triple valve 14 and second triple valve 15 are installed on the new wind air inlet end of described regenerator 5 and the old wind gas outlet end of regenerator 5 respectively.
Compare with existing reclaiming system for condensation heat, double-condenser among the present invention and double electronic expansion-valve structure be by the adjusting of electric expansion valve, can be continuously, smoothly the refrigerant sendout of indoor condenser and outdoor condenser is regulated; Compare with existing refrigeration system, of the present inventionly vulcanize the recovery that energy comes from condensation heat, need not adopt extra heating measure to vulcanize, the use of regenerator has improved the dehumidifying effect of refrigeration system, has reduced the demand of vulcanizing, and energy-saving effect is remarkable; In addition, the defrosting simultaneously of evaporimeter and regenerator makes range of application of the present invention be expanded, and can be applicable to low temperature dehumidification, low dew point dehumidifying.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the structural representation of embodiment 3;
The existing method 1 of Fig. 4 adopts indoor condenser to reclaim the system architecture schematic diagram of condensation heat;
The existing method 2 of Fig. 5 adopts indoor condenser to reclaim the system architecture schematic diagram of condensation heat.
The specific embodiment
Embodiment 1:
The energy-saving type refrigeration and dehumidification integrated machine of embodiment 1, its structure comprises as shown in Figure 1: link to each other successively and form compressor 1, outdoor condenser 2, reservoir 8, first electric expansion valve 7, evaporimeter 4 and the gas-liquid separator 9 of refrigerating circuit; And the indoor condenser 3 and second electric expansion valve 6 that are connected in compressor 1 output and evaporimeter 4 inputs successively; Described outdoor condenser 2, indoor condenser 3 and regenerator 5 all are equipped with blower fan;
On the connecting line of described indoor condenser 3 and described first electric expansion valve 6 second reservoir 10 can be housed also;
When the cooling demand, this device enters cooling condition, and second electric expansion valve 6 is closed; When intensification or constant temperature demand, second electric expansion valve 6 is opened; Can be according to the difference of indoor temperature and design temperature, running status, by special algorithm, (aperture of first electric expansion valve 7 and second electric expansion valve 6 is dynamically controlled to two electric expansion valves, can obtain continuously, the refrigerant sendout between conditioning chamber inner condenser 3 and the outdoor condenser 2 smoothly, realize the temperature adjustment of refrigeration system.
Embodiment 2:
The energy-saving type refrigeration and dehumidification integrated machine of embodiment 2, its structure as shown in Figure 2, this energy-saving type refrigeration and dehumidification integrated machine comprises:
Comprise: link to each other successively and form compressor 1, outdoor condenser 2, reservoir 8, first electric expansion valve 7, evaporimeter 4 and the gas-liquid separator 9 of refrigerating circuit; And the indoor condenser 3 and second electric expansion valve 6 that are connected in compressor 1 output and evaporimeter 4 inputs successively; Described outdoor condenser 2, indoor condenser 3 and regenerator 5 all are equipped with blower fan;
Differently with implementation column 1 be also to comprise regenerator 5, described indoor condenser 3 air inlets communicate with indoor; Described regenerator 5 new wind air inlets, old wind gas outlet all communicate with indoor, described regenerator 5 new wind gas outlets link to each other with evaporimeter 4 air inlets, evaporimeter 4 gas outlets link to each other with regenerator 5 old wind air inlets, and described indoor condenser 3 air inlet/outlets communicate with indoor;
Described indoor condenser 3 air inlets can link to each other with the old wind of regenerator gas outlet; Described regenerator 5 new wind air inlets communicate with indoor, and described regenerator 5 new wind gas outlets link to each other with evaporimeter 4 air inlets, and evaporimeter 4 gas outlets link to each other with regenerator 5 old wind air inlets, and described indoor condenser 3 gas outlets communicate with indoor;
The employing of present embodiment regenerator 5 can reduce the air themperature that enters evaporimeter 4, can improve dehumidifying effect, and the Cryogenic air that evaporimeter 4 comes out has reduced the demand of vulcanizing after regenerator 5 heating.
Embodiment 3:
1, the energy-saving type refrigeration and dehumidification integrated machine structure of implementation column 3 as shown in Figure 3, difference is: increased at the technical of embodiment 2: cross valve 13, heat pump electric expansion valve 11, magnetic valve 12, first check valve 16, second check valve 17, the 3rd check valve 18, the 4th check valve the 19, the 5th check valve 20, first triple valve 14 and second triple valve 15;
Described cross valve 13 is installed on described compressor 1 output, and links to each other with gas-liquid separator 9, evaporimeter 4 and outdoor condenser 2 simultaneously;
Described magnetic valve 12 and the 3rd check valve 18, described first check valve 16 and described the 4th check valve 19 are connected in series successively on the bypass connecting line between reservoir 8 outlets and evaporimeter 4 outlets;
Described heat pump electric expansion valve 11 and described second check valve 17 are connected on the connecting line between described outdoor condenser 2 and described first reservoir 8 in parallel;
Described first triple valve 14 and second triple valve 15 are installed on the fresh inlet end and the old wind port of export of described regenerator 5 respectively.
Wherein, compressor 1 constitutes the defrosting heat pump circuit with cross valve 13, evaporimeter 4, first reservoir 8, heat pump electric expansion valve 11, outdoor condenser 2 and four check valves (first check valve 16, second check valve 17, the 3rd check valve 18 and the 4th check valve 19) and magnetic valve 12;
Regenerator 5 old wind outlets link to each other with regenerator 5 fresh inlets by second triple valve 15, first triple valve 14; Regenerator 5 new wind inlets link to each other with room atmosphere by first triple valve 14, and regenerator 5 old wind outlets link to each other with room atmosphere by second triple valve 15;
Air circulation when evaporimeter 4 should be guaranteed non-defrosting and defrosting with the installation site that is connected blower fan in the air channel of 5 of regenerators in the air channel can be carried out;
Evaporimeter 4 and regenerator 5 can carry out hot gas defrosting simultaneously; When defrosting, regulate electric expansion valve 6 and close; First triple valve 14 and 15 commutations of second triple valve make air channel e be communicated with, and air channel f, g close; Four-way change-over valve 13 commutations, refrigeration system enters heat pump cycle, and evaporimeter 4 carries out defrosting by high temperature refrigerant, and the air circulation that evaporimeter 4 and regenerator are 5 continues, and regenerator 5 carries out defrosting by hot-air.

Claims (4)

1. an energy-conservation refrigeration and dehumidification integrated machine is characterized in that, comprising: link to each other successively and form compressor (1), outdoor condenser (2), reservoir (8), first electric expansion valve (7), evaporimeter (4) and the gas-liquid separator (9) of refrigerating circuit; And the indoor condenser (3) and second electric expansion valve (6) that are connected in compressor (1) output and evaporimeter (4) input successively; Also comprise a regenerator (5); Described regenerator (5) is connected with described evaporimeter (4) by the air channel; Described outdoor condenser (2), indoor condenser (3) and regenerator (5) all are equipped with blower fan; Described regenerator (5) fresh inlet and old wind gas outlet communicate with indoor; The new wind gas outlet of regenerator (5) links to each other with evaporimeter (4) air inlet, and evaporimeter (4) gas outlet links to each other with the old wind air inlet of regenerator (5); Indoor condenser (3) air inlet, indoor condenser (3) gas outlet communicate with indoor;
The gas outlet of old wind air inlet of described regenerator (5) and indoor condenser (3) communicates with indoor, the new wind gas outlet of regenerator (5) links to each other with evaporimeter (4) air inlet, evaporimeter (4) gas outlet links to each other with the old wind air inlet of regenerator (5), and the old wind of regenerator (5) gas outlet links to each other with indoor condenser (3) air inlet.
2. energy-conservation freeze drying dehumidifying integrated machine according to claim 1 is characterized in that, on described indoor condenser (3) and second electric expansion valve (6) connecting line second reservoir (10) is housed.
3. energy-conservation freeze drying dehumidifying integrated machine according to claim 1, it is characterized in that, also comprise cross valve (13), heat pump electric expansion valve (11), magnetic valve (12), first check valve (16), second check valve (17), the 3rd check valve (18), the 4th check valve (19), the 5th check valve (20), first triple valve (14) and second triple valve (15);
Described cross valve (13) is installed on described compressor (1) output, and links to each other with gas-liquid separator (9), evaporimeter (4) and outdoor condenser (2) simultaneously;
Described magnetic valve (12) and the 3rd check valve (18), described first check valve (16) and described the 4th check valve (19) are connected in series successively on the bypass connecting line between reservoir (8) outlet and evaporimeter (4) outlet;
Described heat pump electric expansion valve (11) and described second check valve (17) are connected on the connecting line between described outdoor condenser (2) and described first reservoir (8) in parallel;
Described first triple valve (14) and second triple valve (15) are installed on the new wind air inlet end of described regenerator (5) and the old wind gas outlet end of regenerator (5) respectively.
4. according to claim 1,2 or 3 described energy-conservation freeze drying dehumidifying integrated machines, it is characterized in that the aperture of described first electric expansion valve (7) and second electric expansion valve (6) is adjustable.
CN2008102232328A 2008-09-27 2008-09-27 Energy-saving type refrigeration and dehumidification integrated machine Active CN101413730B (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486322B (en) * 2010-12-06 2014-11-05 中国科学院理化技术研究所 Thermoregulation dehumidification system and method
DE102011104546B4 (en) * 2011-06-18 2013-05-29 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Pump for conveying a cryogenic fluid
CN105276879A (en) * 2014-07-10 2016-01-27 青岛海信日立空调系统有限公司 Air conditioning unit
CN105928065B (en) * 2016-04-29 2019-06-28 海信(山东)空调有限公司 A kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioner
CN106482372B (en) * 2016-10-18 2019-01-01 章晓晓 A kind of dehumidifier
CN108955225A (en) * 2018-08-21 2018-12-07 广州晟启能源设备有限公司 A kind of air-cooled dehumidifying heat pump that can be realized temperature and adjust in due course
CN111263569B (en) * 2020-02-09 2021-07-27 苏州浪潮智能科技有限公司 Refrigerating system of data center machine room

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US20060090507A1 (en) * 2004-11-01 2006-05-04 Carrier Corporation Multiple condenser reheat system with tandem compressors
CN1256557C (en) * 2002-11-26 2006-05-17 乐金电子(天津)电器有限公司 Heat pump type multi-channel air conditioner
US20080229764A1 (en) * 2005-09-15 2008-09-25 Taras Michael F Refrigerant Dehumidification System with Variable Condenser Unloading

Patent Citations (3)

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US20080229764A1 (en) * 2005-09-15 2008-09-25 Taras Michael F Refrigerant Dehumidification System with Variable Condenser Unloading

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