CN205014519U - Energy -conserving dehumidification system of precooling - Google Patents

Energy -conserving dehumidification system of precooling Download PDF

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CN205014519U
CN205014519U CN201520723728.7U CN201520723728U CN205014519U CN 205014519 U CN205014519 U CN 205014519U CN 201520723728 U CN201520723728 U CN 201520723728U CN 205014519 U CN205014519 U CN 205014519U
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air
refrigeration working
cooled condenser
cooler
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丛旭日
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丛旭日
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Abstract

The utility model discloses an energy -conserving dehumidification system of precooling belongs to the air conditioner field, and dehumidification system includes the casing and set up the dehumidification unit in the casing that the dehumidification unit is equipped with compressor, water -cooled condenser, air -cooled condenser, expansion valve, surface cooler gentleness gas plate heat exchanger, be equipped with first refrigeration working medium circulation circuit between compressor, water -cooled condenser, expansion valve and the surface cooler, be equipped with second refrigeration working medium circulation circuit between compressor, air -cooled condenser, expansion valve and the surface cooler, be equipped with a cooling water circulation return circuit between water -cooled condenser and the outside cooling water system, the room air is flowed through in proper order and is sent into indoor route again behind gas plate heat exchanger, surface cooler, gas plate heat exchanger, the air -cooled condenser and be equipped with the air dewetting passageway. The utility model discloses a dehumidification system has simple structure, low, the good advantage of stability of energy consumption.

Description

A kind of precooling energy-saving dehumidifying system
Technical field
The utility model relates to a kind of dehumidification system of filed of air conditioning, especially relates to a kind of heat-pump-type freeze drying system possessing precooling function.
Background technology
In filed of air conditioning, dehumidifying to air is wherein important program.Traditional cooled dehumidifier unit mainly utilizes compression refrigeration principle by Air flow and removes steam, to realize the object that dehumidifies.But the humidity load of removing in this dehumidification mode is born by refrigeration system, causes the moisture removal of overall unit unit of electrical energy lower, and function singleness.Based on this situation, those skilled in the art have researched and developed a unit double system fresh air dehumidifier, as CN1699855, it is provided with casing and is arranged on evaporimeter, air-cooled condenser, compressor, water-cooled condenser, device for drying and filtering, expansion valve, hot gas bypass valve, water fender, the blower fan in casing, be provided with cooling coil before evaporimeter, cooling coil and water-cooled condenser are in series, to reduce the air-treatment scope of refrigeration system, cold water, after cooling coil heat absorption, enters water-cooled condenser.It is compared with common dehumidifier, and unit of electrical energy moisture removal increases than common dehumidifier.But it is in practical work process, the temperature of air when not entering cooling coil is in 26 DEG C substantially, and after evaporator cools, air themperature is down to about 10 DEG C, because this temperature is too low, be not suitable for directly sending into indoor, need to heat to air, cause the secondary waste of the energy.
Utility model content
The purpose of this utility model is to provide a kind of precooling energy-saving dehumidifying system, and it has, and structure is simple, energy consumption is low, the advantage of good stability.
For the moisture removal solving cooled dehumidifier unit unit of electrical energy in prior art is lower, function singleness, the technical problem wasted energy, a kind of precooling energy-saving dehumidifying system of the utility model, comprise housing and be arranged at the dehumidifying unit in housing, dehumidifying unit is provided with compressor, water-cooled condenser, air-cooled condenser, expansion valve, the gentle gas plate type heat exchanger of surface cooler; Compressor, water-cooled condenser, between expansion valve and surface cooler, be provided with the first refrigeration working medium closed circuit, compressor, air-cooled condenser, be provided with the second refrigeration working medium closed circuit between expansion valve and surface cooler, the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit alternate run under normal mode and energy saver mode; The first cooling water circulation loop is provided with between water-cooled condenser and external refrigeration water system; Room air is sent into indoor path again and is provided with air dewetting air channel after flowing through gas gas plate type heat exchanger, surface cooler, gas gas plate type heat exchanger, air-cooled condenser successively, the porch in described air dewetting air channel is provided with blower fan.
Further, a kind of precooling energy-saving dehumidifying system of the utility model, wherein, is provided with the first refrigeration working medium passage and cooling-water duct, is provided with the second refrigeration working medium passage in air-cooled condenser, be provided with the 3rd refrigeration working medium passage in surface cooler in described water-cooled condenser; The first air channel arranged in a crossed manner and the second air channel is provided with in gas gas plate type heat exchanger; Flow to by arranging three-way control valve conversion refrigeration working medium between described first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit;
Described first refrigeration working medium closed circuit is, the liquid outlet of compressor passes through the inlet of pipeline connecting tee control valve, a liquid outlet of three-way control valve connects the inlet of the first refrigeration working medium passage in water-cooled condenser by pipeline, in water-cooled condenser, the liquid outlet of the first refrigeration working medium passage connects the inlet of expansion valve by pipeline, the liquid outlet of expansion valve passes through the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler, and in surface cooler, the liquid outlet of the 3rd refrigeration working medium passage connects the inlet of compressor by pipeline;
Described second refrigeration working medium closed circuit is, the liquid outlet of compressor passes through the inlet of pipeline connecting tee control valve, another liquid outlet of three-way control valve connects the inlet of the second refrigeration working medium passage in air-cooled condenser by pipeline, in air-cooled condenser, the liquid outlet of the second refrigeration working medium passage connects the inlet of expansion valve by pipeline, the inlet of expansion valve passes through the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler, and in surface cooler, the liquid outlet of the 3rd refrigeration working medium passage connects the inlet of compressor by pipeline;
Described first cooling water circulation loop is, in water-cooled condenser, inlet and the liquid outlet of cooling-water duct to be communicated with external refrigeration water lines respectively by pipeline and to form loop;
Described air dewetting air channel is, room air sends into indoor passage after flowing through the second air channel in the first air channel in gas gas plate type heat exchanger, surface cooler, gas gas plate type heat exchanger, air-cooled condenser successively again.
Further, a kind of precooling energy-saving dehumidifying system of the utility model, wherein, the pipeline in described water-cooled condenser between the liquid outlet of the first refrigeration working medium passage and the inlet of expansion valve is provided with the first check valve; Pipeline in described air-cooled condenser between the liquid outlet of the second refrigeration working medium passage and the inlet connecing expansion valve is provided with the second check valve.
Further, a kind of precooling energy-saving dehumidifying system of the utility model, wherein, the front end being in gas gas plate type heat exchanger in described air dewetting air channel is also provided with coiled pipe cooler, is provided with the second cooling water circulation loop between described coiled pipe cooler and external refrigeration water system.
Further, a kind of precooling energy-saving dehumidifying system of the utility model, wherein, also comprises electric control unit, and electric control unit is used for controlling the electric distribution of parts each in unit and operational factor.
A kind of precooling energy-saving dehumidifying system of the utility model compared with prior art, have the following advantages: as the dehumidifying unit in dehumidification system, 1. the utility model is by arranging compressor, water-cooled condenser, air-cooled condenser, expansion valve, the gentle gas plate type heat exchanger of surface cooler, and at compressor, water-cooled condenser, first refrigeration working medium closed circuit is set between expansion valve and surface cooler, at compressor, air-cooled condenser, second refrigeration working medium closed circuit is set between expansion valve and surface cooler, first cooling water circulation loop is set between water-cooled condenser and external refrigeration water, gas gas plate type heat exchanger is flowed through successively at air, surface cooler, gas gas plate type heat exchanger, indoor channel setting air dewetting air channel is sent into again after air-cooled condenser.Just by the unlatching of control first refrigeration working medium closed circuit processed, the second refrigeration working medium closed circuit and the first cooling water circulation loop or can close down thus, make utility model works in different modes.Be specially: when there is people normal condition indoor, by closing down the second refrigeration working medium closed circuit, and open the first refrigeration working medium closed circuit and the first cooling water circulation loop, make utility model works in the normal mode, refrigeration working medium circular flow in the first refrigeration working medium closed circuit, on the one hand, refrigeration working medium absorbs heat at surface cooler place and carries out heat exchange with the air flowed through, air themperature is reduced and realizes freeze drying object, on the other hand, refrigeration working medium is in water-cooled condenser place release heat and carry out heat exchange with the first cooling water circulation loop, by the first cooling water circulation loop, heat is passed, air temperature control in suitable scope, in the normal mode, owing to having closed down the second refrigeration working medium closed circuit, air-cooled condenser is inoperative.When situation vacation indoor are unmanned, only need carry out dehumidification treatments to room air, and do not need to control air themperature, now by unlatching second refrigeration working medium closed circuit, and close down the first refrigeration working medium closed circuit and the first cooling water circulation loop, make utility model works in the power save mode, refrigeration working medium circular flow in the second refrigeration working medium closed circuit, on the one hand, refrigeration working medium absorbs heat at surface cooler place and carries out heat exchange with the air flowed through, and air themperature is reduced and realizes freeze drying object; On the other hand, refrigeration working medium is in air-cooled condenser place release heat and carry out heat exchange with the air flowed through, and air themperature is raised, owing to having closed down the first refrigeration working medium closed circuit and corresponding first cooling water circulation loop, greatly can reduce energy consumption, realize energy-conservation object.2. the utility model is by arranging gas gas plate type heat exchanger, room air is made to flow through the first air channel in gas gas plate type heat exchanger successively, surface cooler, the second air channel in gas gas plate type heat exchanger, indoor are sent into again after air-cooled condenser, in the process, flow through the air after surface cooler, can carry out heat exchange with refrigeration working medium makes temperature reduce, when it flows through the second air channel in gas gas plate type heat exchanger, heat exchange can be carried out as low-temperature receiver and the air just entering the first air channel in gas plate type heat exchanger, precooling treatment is carried out to the air just entering the first air channel in gas plate type heat exchanger, and therefore own temperature raises, the situation that temperature is too low can be avoided, this structural design, not only can make full use of the cold energy of cold air, realize recycling of the energy, reduce energy consumption, and the air themperature flowing through the first air channel can be made to reach relative equilibrium with the air themperature flowing through the second air channel, strengthen the stability of dehumidification system.
Below in conjunction with detailed description of the invention shown in accompanying drawing, a kind of precooling energy-saving dehumidifying system of the utility model is described in further detail:
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the detailed description of the invention of a kind of precooling energy-saving dehumidifying system of the utility model;
In figure, 1 is compressor, and 2 is water-cooled condenser, and 3 is air-cooled condenser, and 4 is expansion valve, and 5 is surface cooler, and 6 is gas gas plate type heat exchanger, and 7 is three-way control valve, and 8 is the first check valve, and 9 is the second single valve, and 10 is coiled pipe cooler.
Detailed description of the invention
A kind of detailed description of the invention of precooling energy-saving dehumidifying system in the utility model as shown in Figure 1, comprise housing generally and be arranged at the dehumidifying unit in housing, dehumidifying unit is provided with compressor 1, water-cooled condenser 2, air-cooled condenser 3, expansion valve 4, the gentle gas plate type heat exchanger 6 of surface cooler 5, and at compressor 1, water-cooled condenser 2, the first refrigeration working medium closed circuit is set between expansion valve 4 and surface cooler 5, allow the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit alternate run under normal mode and energy saver mode; At compressor 1, air-cooled condenser 3, the second refrigeration working medium closed circuit is set between expansion valve 4 and surface cooler 5; First cooling water circulation loop is set between water-cooled condenser 2 and external refrigeration water; Simultaneously and send into indoor channel setting after room air is flowed through gas gas plate type heat exchanger 6, surface cooler 5, gas gas plate type heat exchanger 6, air-cooled condenser 3 successively again and become air dewetting air channel, and blower fan is set in the porch in air dewetting air channel, to guide room air along air dewetting duct flows.
As detailed description of the invention, the concrete structure of dehumidifying unit is in water-cooled condenser 2, arrange the first refrigeration working medium passage and cooling-water duct, arranges the second refrigeration working medium passage, arrange the 3rd refrigeration working medium passage in surface cooler 5 in air-cooled condenser 3; In gas gas plate type heat exchanger 6, the first air channel arranged in a crossed manner and the second air channel are set.
Allow the liquid outlet of compressor 1 by the inlet of pipeline connecting tee control valve 7, a liquid outlet of three-way control valve 7 is allowed to connect the inlet of the first refrigeration working medium passage in water-cooled condenser 2 by pipeline, the liquid outlet of the first refrigeration working medium passage in water-cooled condenser 2 is allowed to be connected the inlet of expansion valve 4 by pipeline, allow the liquid outlet of expansion valve 4 by the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler 5, the liquid outlet of the 3rd refrigeration working medium passage in surface cooler 5 is allowed to be connected the inlet of compressor 1 by pipeline, to form the first refrigeration working medium closed circuit.And allow another liquid outlet of three-way control valve 7 connect the inlet of the second refrigeration working medium passage in air-cooled condenser 3 by pipeline, the liquid outlet of the second refrigeration working medium passage in air-cooled condenser 3 is allowed to be connected the inlet of expansion valve 4 by pipeline, allow the inlet of expansion valve 4 by the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler 5, the liquid outlet of the 3rd refrigeration working medium passage in surface cooler 5 is allowed to be connected the inlet of compressor 1 by pipeline, to form the second refrigeration working medium closed circuit.Above vibrational power flow, can realize by three-way control valve 7 flow direction changing refrigeration working medium, and and then the operation of control the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit.
Meanwhile, the inlet of cooling-water duct in water-cooled condenser 2 and liquid outlet is allowed to be communicated with external refrigeration water lines respectively by pipeline and to form loop; To form the first cooling water circulation loop; Send into indoor to form air dewetting air channel after allowing room air flow through the second air channel in the first air channel in gas gas plate type heat exchanger 6, surface cooler 5, gas gas plate type heat exchanger 6, air-cooled condenser 3 successively again.
Above vibrational power flow, by the unlatching of control first refrigeration working medium closed circuit processed, the second refrigeration working medium closed circuit and the first cooling water circulation loop or close down, under dehumidifying unit of the present utility model just can be made to be operated in different patterns.Be specially: when there is people normal condition indoor, by closing down the second refrigeration working medium closed circuit, and open the first refrigeration working medium closed circuit and the first cooling water circulation loop, make utility model works in the normal mode, refrigeration working medium circular flow in the first refrigeration working medium closed circuit, on the one hand, refrigeration working medium absorbs heat at surface cooler 5 place and carries out heat exchange with the air flowed through, air themperature is reduced and realizes freeze drying object, on the other hand, refrigeration working medium is in water-cooled condenser 2 place's release heat and carry out heat exchange with the first cooling water circulation loop, by the first cooling water circulation loop, heat is passed, air temperature control in suitable scope, in the normal mode, owing to having closed down the second refrigeration working medium closed circuit, air-cooled condenser 3 is inoperative.When situation vacation indoor are unmanned, do not need to carry out cooling process to air, by opening the second refrigeration working medium closed circuit, and close down the first refrigeration working medium closed circuit and the first cooling water circulation loop, make utility model works in the power save mode, refrigeration working medium circular flow in the second refrigeration working medium closed circuit, on the one hand, refrigeration working medium absorbs heat at surface cooler 5 place and carries out heat exchange with the air flowed through, and air themperature is reduced and realizes freeze drying object; On the other hand, refrigeration working medium is in air-cooled condenser 3 place's release heat and carry out heat exchange with the air flowed through, and air themperature is raised, owing to having closed down the first refrigeration working medium closed circuit and corresponding first cooling water circulation loop, greatly can reduce energy consumption, realize energy-conservation object.Simultaneously, the utility model is by arranging gas gas plate type heat exchanger 6, and make room air flow through the first air channel in gas gas plate type heat exchanger 6 successively, surface cooler 5, the second air channel in gas gas plate type heat exchanger 6, indoor are sent into again after air-cooled condenser 3, in the process, air flows through the board-like parallel operation 6 of gas gas for twice, flow through the air after surface cooler 5, can carry out heat exchange with refrigeration working medium makes temperature reduce, when it flows through the second air channel in gas gas plate type heat exchanger 6, heat exchange can be carried out as low-temperature receiver and the air just entering the first air channel in gas plate type heat exchanger 6, precooling treatment is carried out to the air just entering the first air channel in gas gas plate type heat exchanger 6, and therefore himself temperature raises, the situation that temperature is too low can be avoided.This structural design, not only can make full use of the cold energy of cold air, realize recycling of the energy, reduce energy consumption, and the air themperature flowing through the first air channel can be made to reach relative equilibrium with the air themperature flowing through the second air channel, thus strengthen the stability of dehumidification system.
It should be noted that, first refrigeration working medium closed circuit of above annexation and the second refrigeration working medium closed circuit, structure can be simplified, reduce the volume of dehumidifying unit, and correspondingly reduce costs, but its annexation is not limited to enumerate mode above, two inlets and two liquid outlets can also be set on compressor 1, be connected with water-cooled condenser 2 and air-cooled condenser 3 respectively by pipeline, and be connected expansion valve 4 and surface cooler 5 form the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit, in practical application, by controlling being communicated with or closedown of different inlet and liquid outlet on compressor 1, realize unlatching or the closedown of control first refrigeration working medium closed circuit or the second refrigeration working medium closed circuit, equally the purpose of this utility model can be realized.
As prioritization scheme, in this detailed description of the invention, the pipeline in water-cooled condenser 2 between the liquid outlet of the first refrigeration working medium passage and the inlet of expansion valve 4 is provided with the first check valve 8; Pipeline in air-cooled condenser 3 between the liquid outlet of the second refrigeration working medium passage and the inlet connecing expansion valve 4 is provided with the second check valve 9.The object arranging the first check valve 8 and the second check valve 9 is mainly to control the flow direction of refrigeration working medium in the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit, avoids unnecessary energy loss, thus raises the efficiency.It should be noted that, first check valve 8 and the second check valve 9 are also inessential, if do not arranged the first check valve 8 and the second check valve 9, also can realize controlling the flow direction of refrigeration working medium in the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit by three-way control valve 7, but refrigeration working medium can flow into unnecessary path and carry out heat exchange, cause energy loss, affect efficiency.
As prioritization scheme, in this detailed description of the invention, the front end being also in gas gas plate type heat exchanger 6 in air dewetting air channel is provided with coiled pipe cooler 10, and allows the inlet of coiled pipe cooler 10 be communicated with formation second cooling water circulation loop by pipeline with outside cold water with liquid outlet.By arranging coiled pipe cooler 10 and the second cooling water circulation loop, the cooling water in the air of flowing pipe cooler 10 and the second cooling water circulation loop is made to carry out heat exchange, cooling processing is carried out to air, thus further increases freeze drying ability of the present utility model and effect on moisture extraction.
It is to be noted, the utility model is provided with electric control unit (not shown), by electric control unit, the electric distribution of parts each in dehumidification system and operational factor controlled and regulated, automatic management degree can be improved, ensureing the stability of unit operation.In the utility model, electric control unit mainly comprises the devices such as detecting sensor, actuator, DDC or PLC single-chip microcomputer.
For helping skilled in the art to understand the utility model, making schematic illustration below, first it should be noted that running of the present utility model, the utility model runs with two quasi-modes:
Normal condition indoor are run under having people's situation in the normal mode, and detailed process is,
(1) the second refrigeration working medium closed circuit is closed down, open the first refrigeration working medium closed circuit and the first cooling water circulation loop, make refrigeration working medium circular flow in the first refrigeration working medium closed circuit, make cooling water circular flow in the first cooling water circulation loop;
(2) open blower fan, after guiding room air to flow through the second air channel in the first air channel in gas gas plate type heat exchanger 6, surface cooler 5, gas gas plate type heat exchanger 6, air-cooled condenser 3 successively, send into indoor again;
(3) make refrigeration working medium in water-cooled condenser 2 place's release heat and carry out heat exchange with cooling water, making refrigeration working medium absorb heat at surface cooler 5 place and carry out heat exchange with air.
When being provided with coiled pipe cooler 10, also the second cooling water circulation loop should be opened in above-mentioned steps (1), in above-mentioned steps (2), before first air channel that room air should be allowed to flow through in gas gas plate type heat exchanger 6, first flow through coiled pipe cooler 10 and carry out heat exchange with the cooling water in the second cooling water circulation loop.
In the indoor unmanned situation of situation vacation, run with energy saver mode, detailed process is,
(1) open the second refrigeration working medium closed circuit, close down the first refrigeration working medium closed circuit and the first cooling water circulation loop, make refrigeration working medium circular flow in the second refrigeration working medium closed circuit;
(2) open blower fan, after guiding room air to flow through the second air channel in the first air channel in gas gas plate type heat exchanger 6, surface cooler 5, gas gas plate type heat exchanger 6, air-cooled condenser 3 successively, send into indoor again;
(3) make refrigeration working medium in air-cooled condenser 3 place's release heat and carry out heat exchange with air, making refrigeration working medium absorb heat at surface cooler 5 place and carry out heat exchange with air.
Similarly, when being provided with coiled pipe cooler 10, also the second cooling water circulation loop should be closed down in above-mentioned steps (1), in above-mentioned steps (2), before first air channel that room air should be allowed to flow through in gas gas plate type heat exchanger 6, first flow through coiled pipe cooler 10 and carry out heat exchange with the cooling water in the second cooling water circulation loop.
Above embodiment is only the description carried out the utility model preferred embodiment; the restriction not the utility model request protection domain carried out; under the prerequisite not departing from the utility model design spirit; the various forms of distortion that this area engineers and technicians make according to the technical solution of the utility model, all should fall in protection domain that claims of the present utility model determine.

Claims (5)

1. a precooling energy-saving dehumidifying system, comprise housing and be arranged at the dehumidifying unit in housing, it is characterized in that: described dehumidifying unit is provided with compressor (1), water-cooled condenser (2), air-cooled condenser (3), expansion valve (4), the gentle gas plate type heat exchanger (6) of surface cooler (5); Compressor (1), water-cooled condenser (2), between expansion valve (4) and surface cooler (5), be provided with the first refrigeration working medium closed circuit, compressor (1), air-cooled condenser (3), be provided with the second refrigeration working medium closed circuit between expansion valve (4) and surface cooler (5), the first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit alternate run under normal mode and energy saver mode; The first cooling water circulation loop is provided with between water-cooled condenser (2) and external refrigeration water system; Room air is sent into indoor path again and is provided with air dewetting air channel after flowing through gas gas plate type heat exchanger (6), surface cooler (5), gas gas plate type heat exchanger (6), air-cooled condenser (3) successively, the porch in described air dewetting air channel is provided with blower fan.
2. according to a kind of precooling energy-saving dehumidifying system according to claim 1, it is characterized in that: in described water-cooled condenser (2), be provided with the first refrigeration working medium passage and cooling-water duct, be provided with the second refrigeration working medium passage in air-cooled condenser (3), in surface cooler (5), be provided with the 3rd refrigeration working medium passage; The first air channel arranged in a crossed manner and the second air channel is provided with in gas gas plate type heat exchanger (6); Flow to by arranging three-way control valve (7) conversion refrigeration working medium between described first refrigeration working medium closed circuit and the second refrigeration working medium closed circuit;
Described first refrigeration working medium closed circuit is, the liquid outlet of compressor (1) passes through the inlet of pipeline connecting tee control valve (7), a liquid outlet of three-way control valve (7) connects the inlet of the first refrigeration working medium passage in water-cooled condenser (2) by pipeline, in water-cooled condenser (2), the liquid outlet of the first refrigeration working medium passage connects the inlet of expansion valve (4) by pipeline, the liquid outlet of expansion valve (4) passes through the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler (5), in surface cooler (5), the liquid outlet of the 3rd refrigeration working medium passage connects the inlet of compressor (1) by pipeline,
Described second refrigeration working medium closed circuit is, the liquid outlet of compressor (1) passes through the inlet of pipeline connecting tee control valve (7), another liquid outlet of three-way control valve (7) connects the inlet of the second refrigeration working medium passage in air-cooled condenser (3) by pipeline, in air-cooled condenser (3), the liquid outlet of the second refrigeration working medium passage connects the inlet of expansion valve (4) by pipeline, the inlet of expansion valve (4) passes through the inlet of the 3rd refrigeration working medium passage in pipeline connection table cooler (5), in surface cooler (5), the liquid outlet of the 3rd refrigeration working medium passage connects the inlet of compressor (1) by pipeline,
Described first cooling water circulation loop is, inlet and the liquid outlet of cooling-water duct to be communicated with external refrigeration water lines respectively by pipeline and to form loop in water-cooled condenser (2);
Described air dewetting air channel is, room air sends into indoor passage after flowing through the second air channel in the first air channel in gas gas plate type heat exchanger (6), surface cooler (5), gas gas plate type heat exchanger (6), air-cooled condenser (3) successively again.
3. according to a kind of precooling energy-saving dehumidifying system according to claim 2, it is characterized in that: the pipeline in described water-cooled condenser (2) between the liquid outlet of the first refrigeration working medium passage and the inlet of expansion valve (4) is provided with the first check valve (8); Pipeline in described air-cooled condenser (3) between the liquid outlet of the second refrigeration working medium passage and the inlet connecing expansion valve (4) is provided with the second check valve (9).
4. according to a kind of precooling energy-saving dehumidifying system according to claim 3, it is characterized in that: the front end being in gas gas plate type heat exchanger (6) in described air dewetting air channel is also provided with coiled pipe cooler (10), is provided with the second cooling water circulation loop between described coiled pipe cooler (10) and external refrigeration water system.
5. according to a kind of precooling energy-saving dehumidifying system described in any one of claim 1-4, it is characterized in that: also comprise electric control unit, electric control unit is used for controlling the electric distribution of parts each in unit and operational factor.
CN201520723728.7U 2015-09-17 2015-09-17 Energy -conserving dehumidification system of precooling Active CN205014519U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135554A (en) * 2015-09-17 2015-12-09 丛旭日 Pre-cooling energy-saving dehumidifying system and method
CN107940626A (en) * 2017-12-22 2018-04-20 广东美的制冷设备有限公司 Dehumidifier
CN108151172A (en) * 2017-12-22 2018-06-12 广东美的制冷设备有限公司 Dehumidifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135554A (en) * 2015-09-17 2015-12-09 丛旭日 Pre-cooling energy-saving dehumidifying system and method
CN107940626A (en) * 2017-12-22 2018-04-20 广东美的制冷设备有限公司 Dehumidifier
CN108151172A (en) * 2017-12-22 2018-06-12 广东美的制冷设备有限公司 Dehumidifier
CN107940626B (en) * 2017-12-22 2020-02-11 广东美的制冷设备有限公司 Dehumidifier

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