CN201434457Y - Constant temperature and humidity unit with two condensers - Google Patents
Constant temperature and humidity unit with two condensers Download PDFInfo
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- CN201434457Y CN201434457Y CN2009200783129U CN200920078312U CN201434457Y CN 201434457 Y CN201434457 Y CN 201434457Y CN 2009200783129 U CN2009200783129 U CN 2009200783129U CN 200920078312 U CN200920078312 U CN 200920078312U CN 201434457 Y CN201434457 Y CN 201434457Y
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Abstract
The utility model relates to a constant temperature and humidity unit with two condensers, wherein, by being regulated by an electric three-way valve and an electronic expansion valve, high-temperature and high-pressure refrigerant at the outlet of a compressor allows a proper proportion of refrigerant overheat gas to flow into an auxiliary condenser to reheat low-temperature treated air from an evaporator during releasing heat and condensing, by controlling the pressure balance in a main refrigerant pipeline and an auxiliary refrigerant pipeline with a condensation pressure regulating valve,the pressure in a liquid storage device remains still within a certain value, and a temperature sensitive device at the outlet of the auxiliary condenser feeds temperature back to the controller to regulate to what extent can the electric three-way valve and the electronic expansion valve be opened, thereby controlling the rate of refrigerant flowing through the auxiliary condenser, that is controlling the reheat quantity. The scheme has the advantages of reducing the condensing temperature in the unit, improving the efficiency of the unit, reducing the heat pollution to environment through utilizing the heat of condensation to reheat air, obviating the use of an electrical heating system, reducing the electrical power consumption of the unit, and saving energy.
Description
Technical field
The utility model relates to a kind of air-conditioning unit, particularly a kind of double-condenser constant temperature and humidity unit.
Background technology
In traditional constant temperature and humidity unit, air in order to reach the wind pushing temperature requirement, adopts electrical heating to come hot processed air behind cooling dehumidification usually again.Though this method is easy to use, it is easy to regulate, because cold and hot amount offsets, has wasted the electric energy of a large amount of preciousnesses, and has discharged a large amount of condensation heat simultaneously in environment, causes thermal pollution.Therefore in the construction of country, need a kind of constant-temperature constant-humidity air-conditioner of energy-conservation environmental protection, and have good automatic control ability, can control heat more accurately.
Summary of the invention
The utility model is the problem that has energy loss at present traditional constant temperature and humidity unit, a kind of double-condenser constant temperature and humidity unit has been proposed, the good control ability of regulating is automatically arranged, can use condensation heat to heat modularization unit through the air of constant temperature and humidity machine evaporator cools.
The technical solution of the utility model is: a kind of double-condenser constant temperature and humidity unit, comprise compressor, electric T-shaped valve, flow control valve, main condenser, heating power expansion valve, evaporimeter, liquid reservoir, gas-liquid separator, blower fan, the PLC control module, device for drying and filtering, visor, PLC control module control electric T-shaped valve and flow control valve, also comprise auxiliary condenser, the condensation pressure regulation valve, differential valve, after the compressed machine compression of refrigerant vapour, through electric T-shaped valve and flow control valve assignment of traffic, a part enters auxiliary condenser heat release condensation, another part superheated refrigerant steam enters main condenser, by entering liquid reservoir after the outdoor fan condensation; Adorn a condensation pressure regulation valve and liquid reservoir joins in the outlet of auxiliary condenser, and between liquid reservoir and auxiliary condenser inlet, adorn a differential valve, the cold refrigerant liquid of the mistake that liquid reservoir comes out is through device for drying and filtering and visor, after the heating power expansion valve throttling, enter the evaporator evaporation heat absorption, suck by compressor again through the gas-liquid separator evaporated refrigerant vapor.
A septum valve is adorned in described main condenser outlet, makes condensing pressure be higher than evaporating pressure.
A temperature sensor is established in the rear end of auxiliary condenser, temperature sensor signal input PLC control module.
The beneficial effects of the utility model are: the utility model double-condenser constant temperature and humidity unit, reduced the condensation temperature of unit, and improved the efficient of unit; Utilize condensation heat hot-air again, reduced thermal pollution environment; Save electric heating system, reduced the power consumption of unit, saved the energy.
Description of drawings
Fig. 1 is the utility model double-condenser constant temperature and humidity unit structured flowchart.
The specific embodiment
Utilize the aperture of PLC control electric T-shaped valve and electric expansion valve, control in the refrigeration system pressure balanced double-condenser constant temperature and humidity unit in two condenser pipes with the condensation pressure regulation valve.Double-condenser constant temperature and humidity unit comprises compressor 1, electric T-shaped valve 2, flow control valve 3, main condenser 4, auxiliary condenser 5, electric expansion valve, heating power expansion valve 14, condensation pressure regulation valve 6, septum valve 10, evaporimeter 8, liquid reservoir 7, gas-liquid separator 9, differential valve 11, blower fan 15, PLC control module, device for drying and filtering 12 and visor 13.After compressed machine 1 compression of refrigerant vapour, after electric T-shaped valve 2 and flow control valve 3 assignment of traffic, a part enters auxiliary condenser 5 heat release condensations, simultaneously hot more processed air; Most of superheated refrigerant steam enters main condenser 4, by entering liquid reservoir 7 after outdoor fan 15 condensations; Condensation temperature in the auxiliary condenser 5 is low to cause condensing pressure also lower, in order to keep the constant operating pressure of liquid reservoir 7, adorn a condensation pressure regulation valve 6 and between liquid reservoir 7 and auxiliary condenser 5 inlets, adorn a differential valve 11 in the outlet of auxiliary condenser 5, make the pressure of condensation pressure regulation valve 6 outlets and the pressure balance in the main condenser pipeline; Cross cold refrigerant liquid through device for drying and filtering 12 and visor 13, after heating power expansion valve 14 throttlings, enter evaporimeter 8 evaporation heat absorptions, simultaneously processed air is carried out cooling and dehumidifying, suck by compressor 1 again, so move in circles through gas-liquid separator 9 evaporated refrigerant vapor.
The refrigerant vapour of heat absorption evaporation from evaporimeter 8, after compressed machine 1 compression heats up, control and distribute the flow of the superheated refrigerant steam of flow through main condenser 4 and auxiliary condenser 5 by electric T-shaped valve 2 and flow control valve 3, make heat that the cold-producing medium that enters auxiliary condenser 5 condensation heat releases puts and required heat balance again; Other condensation loads are born by main condenser 4.Because main condenser 4 is different with the condensation temperature of auxiliary condenser 5, cause the condensing pressure difference, main condenser pressure is greater than auxilliary condensing pressure, and must keep certain pressure just can make heating power expansion valve 14 front and back that certain choke pressure is arranged in the liquid reservoir 7.Solution is to increase a condensation pressure regulation valve 6 in auxiliary condenser 5 outlets, makes auxiliary condenser 5 outlet pressures identical with main condenser 4 pressure, thereby guarantees in the liquid reservoir 7 pressure stable is arranged.
One big characteristics of constant-temperature constant-humidity air-conditioner are whole year operations, even also need move by cooling condition in the winter time, this phenomenon of evaporating pressure and condensing pressure reversal of the natural order of things will occur, and promptly evaporating pressure is greater than condensing pressure, and this moment, system can't move.Solution is to adorn a septum valve 10 in the main condenser outlet, makes condensing pressure be higher than evaporating pressure, and unit can be moved safely normally.
The flow of cold-producing medium is the crucial difficult problem whether this unit of decision can accurately be controlled in the auxiliary condenser 5, solution is to establish a temperature sensor in the rear end of auxiliary condenser 5 in the air-treatment side, when temperature is below or above design temperature, increase or reduce the aperture of flow control valve 3, to increase or to reduce the refrigerant flow in the auxiliary condenser 5 of flowing through.
Claims (3)
1, a kind of double-condenser constant temperature and humidity unit, comprise compressor, electric T-shaped valve, flow control valve, main condenser, heating power expansion valve, evaporimeter, liquid reservoir, gas-liquid separator, blower fan, the PLC control module, device for drying and filtering, visor, PLC control module control electric T-shaped valve and flow control valve, it is characterized in that, also comprise auxiliary condenser, the condensation pressure regulation valve, differential valve, after the compressed machine compression of refrigerant vapour, through electric T-shaped valve and flow control valve assignment of traffic, a part enters auxiliary condenser heat release condensation, another part superheated refrigerant steam enters main condenser, by entering liquid reservoir after the outdoor fan condensation; Adorn a condensation pressure regulation valve and liquid reservoir joins in the outlet of auxiliary condenser, and between liquid reservoir and auxiliary condenser inlet, adorn a differential valve, the cold refrigerant liquid of the mistake that liquid reservoir comes out is through device for drying and filtering and visor, after the heating power expansion valve throttling, enter the evaporator evaporation heat absorption, suck by compressor again through the gas-liquid separator evaporated refrigerant vapor.
According to the described double-condenser constant temperature and humidity of claim 1 unit, it is characterized in that 2, a septum valve is adorned in described main condenser outlet, makes condensing pressure be higher than evaporating pressure.
According to the described double-condenser constant temperature and humidity of claim 1 unit, it is characterized in that 3, a temperature sensor is established in the rear end of described auxiliary condenser, temperature sensor signal input PLC control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200783129U CN201434457Y (en) | 2009-07-16 | 2009-07-16 | Constant temperature and humidity unit with two condensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200783129U CN201434457Y (en) | 2009-07-16 | 2009-07-16 | Constant temperature and humidity unit with two condensers |
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| Publication Number | Publication Date |
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| CN201434457Y true CN201434457Y (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200783129U Expired - Fee Related CN201434457Y (en) | 2009-07-16 | 2009-07-16 | Constant temperature and humidity unit with two condensers |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865552A (en) * | 2010-06-22 | 2010-10-20 | 合肥天鹅制冷科技有限公司 | Air conditioning equipment |
| CN101984880A (en) * | 2010-10-29 | 2011-03-16 | 浙江大学 | Diffusion absorbing refrigeration-based constant temperature and humidity system |
| CN102620406A (en) * | 2011-01-30 | 2012-08-01 | 蓝斯（广州）能源科技有限公司 | Air cooling split air conditioner system for controlling relative humidity of indoor air |
| CN103518165A (en) * | 2011-05-10 | 2014-01-15 | 株式会社富士金 | Pressure-based flow control device with flow monitor |
| CN103575006A (en) * | 2013-11-25 | 2014-02-12 | 广东申菱空调设备有限公司 | Low-temperature refrigeration type air-cooling water chilling unit and control method thereof |
| CN103691495A (en) * | 2013-12-28 | 2014-04-02 | 苏州市东华试验仪器有限公司 | Constant temperature and humidity chamber provided with refrigerating and moisture removing device |
| CN103743167A (en) * | 2013-11-26 | 2014-04-23 | 中山市蓝水能源科技发展有限公司 | Adjustable air conditioner circulation system |
| CN103925668A (en) * | 2014-04-28 | 2014-07-16 | 上海理工大学 | Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method |
| CN106545977A (en) * | 2016-12-29 | 2017-03-29 | 广东申菱环境系统股份有限公司 | The control method of shunting Wind-cooling type thermostatic and humidistatic air conditioning unit |
| CN106765965A (en) * | 2016-12-29 | 2017-05-31 | 广东申菱环境系统股份有限公司 | The control method of shunting water-cooling type thermostatic and humidistatic air conditioning unit |
| CN107806675A (en) * | 2016-09-06 | 2018-03-16 | 深圳市昊昱环保科技有限公司 | A kind of air-cooled dehumidification system of four seasons type and its control method |
| CN109893956A (en) * | 2019-04-08 | 2019-06-18 | 南京工业大学 | Soft package lithium battery thermal runaway gas filtering and collecting device and operation method thereof |
| CN112254384A (en) * | 2020-10-27 | 2021-01-22 | 苏州连海制冷科技有限公司 | Air cooling box type low-temperature refrigerating unit |
| CN114710932A (en) * | 2022-03-29 | 2022-07-05 | 苏州黑盾环境股份有限公司 | Refrigeration/heat pipe composite type cabinet air conditioning system and control method thereof |
-
2009
- 2009-07-16 CN CN2009200783129U patent/CN201434457Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865552A (en) * | 2010-06-22 | 2010-10-20 | 合肥天鹅制冷科技有限公司 | Air conditioning equipment |
| CN101984880A (en) * | 2010-10-29 | 2011-03-16 | 浙江大学 | Diffusion absorbing refrigeration-based constant temperature and humidity system |
| CN102620406A (en) * | 2011-01-30 | 2012-08-01 | 蓝斯（广州）能源科技有限公司 | Air cooling split air conditioner system for controlling relative humidity of indoor air |
| CN103518165A (en) * | 2011-05-10 | 2014-01-15 | 株式会社富士金 | Pressure-based flow control device with flow monitor |
| CN103575006A (en) * | 2013-11-25 | 2014-02-12 | 广东申菱空调设备有限公司 | Low-temperature refrigeration type air-cooling water chilling unit and control method thereof |
| CN103743167A (en) * | 2013-11-26 | 2014-04-23 | 中山市蓝水能源科技发展有限公司 | Adjustable air conditioner circulation system |
| CN103691495A (en) * | 2013-12-28 | 2014-04-02 | 苏州市东华试验仪器有限公司 | Constant temperature and humidity chamber provided with refrigerating and moisture removing device |
| CN103925668A (en) * | 2014-04-28 | 2014-07-16 | 上海理工大学 | Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method |
| CN107806675A (en) * | 2016-09-06 | 2018-03-16 | 深圳市昊昱环保科技有限公司 | A kind of air-cooled dehumidification system of four seasons type and its control method |
| CN106545977A (en) * | 2016-12-29 | 2017-03-29 | 广东申菱环境系统股份有限公司 | The control method of shunting Wind-cooling type thermostatic and humidistatic air conditioning unit |
| CN106765965A (en) * | 2016-12-29 | 2017-05-31 | 广东申菱环境系统股份有限公司 | The control method of shunting water-cooling type thermostatic and humidistatic air conditioning unit |
| CN106765965B (en) * | 2016-12-29 | 2019-07-16 | 广东申菱环境系统股份有限公司 | The control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit |
| CN106545977B (en) * | 2016-12-29 | 2019-07-23 | 广东申菱环境系统股份有限公司 | The control method of shunt Wind-cooling type thermostatic and humidistatic air conditioning unit |
| CN109893956A (en) * | 2019-04-08 | 2019-06-18 | 南京工业大学 | Soft package lithium battery thermal runaway gas filtering and collecting device and operation method thereof |
| CN112254384A (en) * | 2020-10-27 | 2021-01-22 | 苏州连海制冷科技有限公司 | Air cooling box type low-temperature refrigerating unit |
| CN114710932A (en) * | 2022-03-29 | 2022-07-05 | 苏州黑盾环境股份有限公司 | Refrigeration/heat pipe composite type cabinet air conditioning system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20100716 |