CN205641396U - Double -cold -source fresh air conditioning unit - Google Patents

Double -cold -source fresh air conditioning unit Download PDF

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Publication number
CN205641396U
CN205641396U CN201620508060.9U CN201620508060U CN205641396U CN 205641396 U CN205641396 U CN 205641396U CN 201620508060 U CN201620508060 U CN 201620508060U CN 205641396 U CN205641396 U CN 205641396U
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air
condenser
heat exchanger
cabinet
supply
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CN201620508060.9U
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Chinese (zh)
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于林中
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SHANDONG YASHI CO Ltd
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SHANDONG YASHI CO Ltd
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Abstract

The utility model discloses a double -cold -source fresh air conditioning unit is provided with fresh air intake, indoor return air inlet, supply -air outlet and outdoor air outlet on quick -witted case, in sending air chamber, along the air supply direction, set gradually air cleaner, low temperature evaporator and forced draught blower, be provided with condenser and exhaust fan in row air chamber, compressor and expansion valve link to each other with condenser and low temperature evaporator and form the refrigerant return circuit, be provided with heat exchanger at quick -witted incasement, heat exchanger is located low temperature evaporator's air -out side, and is located the air inlet side of condenser. Can utilize the return air heat to make the air supply temperature rise, hygrometry descends, avoids low -temperature high -humidity's air supply messenger to send the mouth condensation phenomenon to appear, utilize the cold volume of supplying air to make air return temperature descend, increase the heat dissipation capacity of condenser, improve low temperature evaporator's dehumidification ability, satisfy air -conditioned room's moisture load requirement, the reduction of condenser air inlet temperature can reduce refrigeration cycle's condensing pressure, is favorable to promoting the energy efficiency ratio, has energy -conserving effect.

Description

Double low-temperature receiver fresh air handining units
Technical field
This utility model belongs to fresh air handining unit field, refers more particularly to a kind of double low-temperature receiver fresh air handining unit.
Background technology
Humiture independent adjusting air conditioner system, as the term suggests, this system is temperature and humidity independently to be entered Row controls.In actual applications, humidity typically can be undertaken by a certain amount of new wind, and i.e. new wind needs to protect Demonstrate,prove certain mass dryness fraction, undertake the humidity load of indoor, indoor normal humidity level can be maintained.General feelings Under condition, outdoor new wind dustiness and water capacity are the biggest, cause being processed to suitable state needs The biggest energy expenditure, so the fresh air proportion of air-conditioning is the most not too large, typically to meet personnel's Health or technological requirement, say, that in the case of indoor humidity load is certain, if the wind of new wind Measure less it is necessary to wind of looking for novelty has higher mass dryness fraction.
Current way realizes typically by double cold source air conditioning groups.So-called double low-temperature receiver, it is simply that have two The low-temperature receiver of different evaporating temperatures, is also dual temperature.As in figure 2 it is shown, new wind is entered air-supply by new wind air inlet 2 Storehouse 15, after air filter 3, first passes through pyrometric scale cooler 4 and carries out cooling and dehumidifying, then through low temperature Vaporizer 5 carries out degree of depth dehumidifying, makes the water capacity in air reach to meet the requirement of humidity load, by pressure fan 9 send into indoor through air outlet 8, and indoor return air is entered air draft storehouse 16 by indoor return air mouth 7, through condenser 12 cool down, meanwhile, the condensation heat that kind of refrigeration cycle produces, indoor air draft passed through by exhaust blower 14 Outdoor exhaust outlet 13 heat exchange is taken away, and dispels the heat in outside atmosphere.
This air-treatment measure exists following the most not enough:
Firstly, because whole dehumidification process be surface cooling cooling down dehumidifying, new wind through dehumidifying after, its Dry-bulb temperature can be the lowest, and relative humidity, close to 100%, can make ajutage or air outlet 8 produce low temperature and coagulate Dew phenomenon, causes and damages the hidden danger of installations and facilities in around ajutage and room.
Secondly, the temperature that air draft enters condenser 12 is higher, is typically not less than 26 DEG C, due to cold-producing medium The restriction of condensation temperature, the heat dissipation capacity of condenser 12 has certain limitation, causes the cryogenic vaporizer of air-supply side The dehumidifying effect of 5 also has certain restriction, does not reaches desired dehumidifying effect, thus air-supply can be caused dry Degree deficiency, humidity over limit in room.
Again, the inlet temperature that condenser 12 is higher, it is unfavorable for the Energy Efficiency Ratio of refrigeration system, is unfavorable for energy-conservation.
Summary of the invention
Technical problem to be solved in the utility model is: provides a kind of double low-temperature receiver fresh air handining unit, prevents Low temperature dew condensation phenomenon, improves dehumidifying effect and the Energy Efficiency Ratio of refrigeration system.
For solving above-mentioned technical problem, the technical solution of the utility model is: double low-temperature receiver fresh air handining units, Including: cabinet, described cabinet is provided with new wind air inlet, air outlet, indoor return air mouth and outdoor row Air port, the inner space of described cabinet is divided into air-supply storehouse and air draft storehouse;In described air-supply storehouse, along air supply direction, It is disposed with air filter, pyrometric scale cooler, cryogenic vaporizer and pressure fan, wherein, described air Filter is near described new wind air inlet, and described pressure fan is near described air outlet;In described air draft storehouse, edge Air draft direction, is disposed with condenser, exhaust blower, and described exhaust blower is near described outdoor exhaust outlet;Also Including compressor and expansion valve, described compressor and described expansion valve by pipeline and described condenser and described Cryogenic vaporizer is connected formation refrigerant loop;Being provided with heat exchanger in described cabinet, described heat is handed over Parallel operation is positioned at the air side of described cryogenic vaporizer, and is positioned at the inlet side of described condenser, and described low temperature steams Heat exchange is there is in the air intake of the air-out and described condenser of sending out device in described heat exchanger.
Further, described heat exchanger is preferably heat-exchangers of the plate type, or is rotary heat exchanger, Or it is tube coil type heat exchanger.
Further, described compressor and described expansion valve are placed in described cabinet inside, or are placed in described machine Outside case.
Owing to have employed technique scheme, the beneficial effects of the utility model are, double low-temperature receiver fresh air air conditioner for machines Group, including cabinet, is provided with new wind air inlet, indoor return air mouth, air outlet and outdoor air draft on cabinet Mouthful;The inside of cabinet is divided into air-supply storehouse and air draft storehouse, in air-supply storehouse, along air supply direction, sets gradually Having air filter, cryogenic vaporizer and pressure fan, air filter is near new wind air inlet;In air draft storehouse Inside it is provided with condenser and exhaust blower;Also include that compressor and expansion valve, compressor and expansion valve pass through pipeline It is connected to form refrigerant loop with condenser and cryogenic vaporizer;Being provided with heat exchanger in cabinet, heat is handed over Parallel operation is positioned at the air side of cryogenic vaporizer, and is positioned at the inlet side of condenser.Air side and row at new wind The inlet side of wind is provided with heat exchanger, it is possible to use the air-supply that the heat temperature of return air is relatively low, makes to send Air temperature rises, and relative humidity declines simultaneously, it is to avoid the air-supply of low temperature and high relative humidity causes airduct or air outlet to occur Dew condensation phenomenon;The return air that the cold chilling temperature of air-supply is higher can be utilized, at a temperature of making return air temperature simultaneously Fall, increases the heat dissipation capacity of condenser, improves the dehumidifying effect of cryogenic vaporizer, meets the wet negative of air-conditioned room Lotus requirement;The reduction of inlet air temperature of condenser, can make the condensing pressure of kind of refrigeration cycle reduce, and is conducive to system The lifting of SAPMAC method Energy Efficiency Ratio, has energy-saving effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment;
Fig. 2 is the structural representation of double low-temperature receiver fresh air handining units of prior art;
In figure, arrow represents air-flow direction;
In figure, 1, cabinet, 2, new wind air inlet, 3, air filter, 4, pyrometric scale cooler, 5, Cryogenic vaporizer, 6, heat exchanger, 7, indoor return air mouth, 8, air outlet, 9, pressure fan, 10, swollen Swollen valve, 11, compressor, 12, condenser, 13, outdoor exhaust outlet, 14, exhaust blower, 15, air-supply storehouse, 16, air draft storehouse.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
As it is shown in figure 1, double low-temperature receiver fresh air handining units, including: cabinet 1, described cabinet 1 is arranged There are new wind air inlet 2, air outlet 8, indoor return air mouth 7 and outdoor exhaust outlet 13, described cabinet 1 interior Space, portion is divided into air-supply storehouse 15 and air draft storehouse 16;In described air-supply storehouse 15, along air supply direction, set gradually There are air filter 3, pyrometric scale cooler 4, cryogenic vaporizer 5 and pressure fan 9, wherein, described air mistake Filter 3 is near described new wind air inlet 2, and described pressure fan 9 is near described air outlet 8;Described air draft storehouse In 16, along air draft direction, being disposed with condenser 12, exhaust blower 14, described exhaust blower 14 is near institute State outdoor exhaust outlet 13;Also include compressor 11 and expansion valve 10, described compressor 11 and described expansion valve 10 are connected with described condenser 12 and described cryogenic vaporizer 5 formation refrigerant loop by pipeline;? Being provided with heat exchanger 6 in described cabinet 1, described heat exchanger 6 is positioned at going out of described cryogenic vaporizer 5 Wind side, and it is positioned at the inlet side of described condenser 12, the air-out of described cryogenic vaporizer 5 and described condenser Heat exchange is there is in the air intake of 12 in described heat exchanger 6.Described heat exchanger 6 is preferably board-like heat exchange Device, or be rotary heat exchanger, or be tube coil type heat exchanger.
It is internal that described compressor 11 and described expansion valve 10 are placed in described cabinet 1, or is placed in described cabinet Outside 1.
Below in conjunction with a kind of specific embodiment of the present utility model, to using of the present utility model pair of low-temperature receiver The work process of fresh air handining unit is described: extraneous fresh air enters cabinet 1 through new wind air inlet 2 Internal air-supply storehouse 15, new wind sequentially passes through air filter 3 and filters, and pyrometric scale cooler 4 carries out preliminary Cool-down dehumidification, cryogenic vaporizer 5 carries out secondary degree of depth, dehumidifies thoroughly, thoroughly the new wind after dehumidifying Carry out Re Jiaore in air side by heat-exchangers of the plate type and indoor return air, absorb the heat in indoor return air; The return air that temperature is higher absorbs the cold of new wind air-supply, makes return air temperature reduce.After carrying out heat exchange, indoor The temperature of return air reduces, and alleviates compressor 11 and expansion valve 10 and is steamed with condenser 12 and low temperature by pipeline Send out device 5 to be connected the restriction of the refrigerant temperature formed in refrigerant loop, break condenser 12 heat dissipation capacity Limitation, improve the dehumidifying effect of air-supply side cryogenic vaporizer 5 simultaneously, the relatively low return air of temperature is through system The condenser 12 of SAPMAC method, takes away its heat dissipation capacity, eventually passes through outdoor exhaust outlet 13 and is discharged in outside atmosphere.
Although the foregoing describing detailed description of the invention of the present utility model, but those skilled in the art should Understanding, described embodiment is only a part of embodiment of the present utility model rather than whole enforcement Example, these are merely illustrative, and protection domain of the present utility model is to be defined by the appended claims. Those skilled in the art is on the premise of without departing substantially from principle of the present utility model and essence, not through appointing Under what performing creative labour, these embodiments can be made various changes or modifications, but these changes and Amendment each falls within protection domain of the present utility model.

Claims (3)

1. pair low-temperature receiver fresh air handining unit, including: cabinet (1), described cabinet (1) is provided with new Wind air inlet (2), air outlet (8), indoor return air mouth (7) and outdoor exhaust outlet (13), described cabinet (1) inner space is divided into air-supply storehouse (15) and air draft storehouse (16);
In described air-supply storehouse (15), along air supply direction, it is disposed with air filter (3), pyrometric scale Cooler (4), cryogenic vaporizer (5) and pressure fan (9), wherein, described air filter (3) is close Described new wind air inlet (2), described pressure fan (9) is near described air outlet (8);
In described air draft storehouse (16), along air draft direction, it is disposed with condenser (12), exhaust blower (14), Described exhaust blower (14) is near described outdoor exhaust outlet (13);
Also include compressor (11) and expansion valve (10), described compressor (11) and described expansion valve (10) It is connected with described condenser (12) and described cryogenic vaporizer (5) formation refrigerant loop by pipeline;
It is characterized in that, in described cabinet (1), be provided with heat exchanger (6), described heat exchanger (6) It is positioned at the air side of described cryogenic vaporizer (5), and is positioned at the inlet side of described condenser (12), described The air intake of the air-out of cryogenic vaporizer (5) and described condenser (12) is sent out in described heat exchanger (6) Heat exchanges.
2. double low-temperature receiver fresh air handining unit as claimed in claim 1, it is characterised in that described heat exchanger (6) For heat-exchangers of the plate type, or it is rotary heat exchanger, or is tube coil type heat exchanger.
3. double low-temperature receiver fresh air handining unit as claimed in claim 1 or 2, it is characterised in that described compressor (11) it is placed in inside described cabinet (1) with described expansion valve (10), or is placed in described cabinet (1) Outside.
CN201620508060.9U 2016-05-30 2016-05-30 Double -cold -source fresh air conditioning unit Active CN205641396U (en)

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Application Number Priority Date Filing Date Title
CN201620508060.9U CN205641396U (en) 2016-05-30 2016-05-30 Double -cold -source fresh air conditioning unit

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107664328A (en) * 2017-11-08 2018-02-06 山西新华化工有限责任公司 The split type new blower fan of unidirectionally stream with dehumidification function and with interior circularly purifying
CN110094820A (en) * 2019-05-30 2019-08-06 南安市三落工业设计有限公司 A kind of double cold source dehumidification fresh airs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107664328A (en) * 2017-11-08 2018-02-06 山西新华化工有限责任公司 The split type new blower fan of unidirectionally stream with dehumidification function and with interior circularly purifying
CN110094820A (en) * 2019-05-30 2019-08-06 南安市三落工业设计有限公司 A kind of double cold source dehumidification fresh airs
CN110094820B (en) * 2019-05-30 2020-12-04 浙江美臣环境科技有限公司 New fan of two cold sources dehumidification

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