CN203147937U - Constant temperature and humidity air conditioning unit - Google Patents
Constant temperature and humidity air conditioning unit Download PDFInfo
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- CN203147937U CN203147937U CN 201320057334 CN201320057334U CN203147937U CN 203147937 U CN203147937 U CN 203147937U CN 201320057334 CN201320057334 CN 201320057334 CN 201320057334 U CN201320057334 U CN 201320057334U CN 203147937 U CN203147937 U CN 203147937U
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- heat exchanger
- air conditioning
- conditioning unit
- main heat
- cross valve
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Abstract
The utility model discloses a constant temperature and humidity air conditioning unit which comprises a circulation loop formed by sequentially connecting a compressor, a condenser, throttling devices and a main heat exchanger and further comprises a four-way valve, an auxiliary heat exchanger and a humidifier. The auxiliary heat exchanger is arranged between the main heat exchanger and an outlet of an air supply channel, the humidifier is arranged between a heat exchanger fan and the main heat exchanger, the A end of the four-way valve is connected with the output end of the condenser, the C end of the four-way valve is connected with an air suction end of the compressor, the B end of the four-way valve is connected with the output end of the auxiliary heat exchanger through a first throttling device and connected with the input end of the main heat exchanger through a second throttling device, the D end of the four-way valve is connected with the input end of the auxiliary heat exchanger, and a control unit is further connected with a temperature sensor and a humidity sensor. The constant temperature and humidity air conditioning unit can recover energy of air conditioning refrigerant, the energy of the air conditioning refrigerant can be used for heating air, no electric heating tube needs to be arranged specially, energy utilization rate is high, constant temperature and humidity conditions are guaranteed, and energy is saved.
Description
Technical field
The utility model relates to a kind of thermostatic and humidistatic air conditioning unit group and control method, belongs to air-conditioning and refrigeration technology field.
Background technology
To the temperature and humidity place that has certain requirements, as food, processing such as tealeaves or storage place, temperature and humidity there is certain requirement, but it is low that control accuracy requires, need the thermostatic and humidistatic air conditioning unit group to carry out temperature and humidity in the control room, the principle of present thermostatic and humidistatic air conditioning unit group generally is to utilize indoor heat exchanger to freeze or dehumidify, because refrigeration can be accompanied by dehumidification process, therefore, when humidity too high, temperature is suitable, in the time of also namely only need dehumidifying, temperature also can descend thereupon, and electric heater need rerun, to guarantee temperature constant, sometimes temperature is low excessively, humidity is too high, when needing to promote temperature and reducing humidity, also needs to move electric heater and heats, to reach the purpose that improves temperature, use powerful electric heater to control temperature like this, power consumption is big, energy utilization rate is low, is unfavorable for energy-conservation.
Based on this, a kind of thermostatic and humidistatic air conditioning unit group of utility model how improves the energy utilization rate of air-conditioning, and reaching purpose of energy saving when ensureing the constant temperature and humidity condition is the problem that the utility model mainly solves.
Summary of the invention
The utility model is in order to solve the existing low problem of thermostatic and humidistatic air conditioning unit group energy utilization rate, a kind of thermostatic and humidistatic air conditioning unit group is provided, the energy that reclaims air-conditioning refrigerant is used for adding hot-air, need not to arrange specially electric heating tube, the energy utilization rate height reaches purpose of energy saving when ensureing the constant temperature and humidity condition.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of thermostatic and humidistatic air conditioning unit group, comprise compressor, condenser, throttling arrangement, and the main heat exchanger closed circuit that is linked in sequence and forms, also comprise the cross valve that is connected with control module respectively, supplementary heat exchanger, and humidifier, described supplementary heat exchanger is arranged between main heat exchanger and the air-supply passage outlet, described humidifier is arranged between heat exchanger fan and the main heat exchanger, described throttling arrangement comprises first throttle device and second throttling arrangement, the A end of described cross valve is connected with the output of condenser, the C end of described cross valve is connected with the suction end of compressor, the B end of described cross valve connects the output of supplementary heat exchanger on the one hand by the first throttle device, the input that connects main heat exchanger in addition on the one hand by second throttling arrangement, the D end of described cross valve is connected with the input of supplementary heat exchanger, and described control module also is connected with temperature sensor and humidity sensor.
Further, the B of described cross valve end also is connected with check valve.
Further again, described first throttle device comprises electric expansion valve and check valve.
Preferably, described second throttling arrangement is electric expansion valve.
Preferably, described condenser, main heat exchanger, supplementary heat exchanger are copper pipe aluminum fin formula heat exchanger.
Compared with prior art, advantage of the present utility model and good effect are: thermostatic and humidistatic air conditioning unit group of the present utility model, by a supplementary heat exchanger is set, when need not cooling or needing to heat up, the control cold-producing medium supplementary heat exchanger of flowing through, the recovery section energy utilizes the energy that reclaims that air is heated, improve energy utilization rate, when keeping constant temperature and humidity, reached purpose of energy saving.
After reading the detailed description of the utility model embodiment by reference to the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of a kind of thermostatic and humidistatic air conditioning unit group of proposing of the utility model;
Fig. 2 is a kind of embodiment flow chart of a kind of thermostatic and humidistatic air conditioning unit group control method of proposing of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done explanation in further detail.
Embodiment one, referring to shown in Figure 1, a kind of thermostatic and humidistatic air conditioning unit group, comprise compressor 1, condenser 2, throttling arrangement, and main heat exchanger, the above-mentioned parts formation closed circuit that is linked in sequence, the air-conditioning unit of present embodiment also comprises the cross valve 4 that is connected with control module respectively, supplementary heat exchanger 5, and humidifier 11, supplementary heat exchanger 5 is arranged between main heat exchanger 10 and the air-supply passage outlet, humidifier 11 is arranged between heat exchanger fan 12 and the main heat exchanger 10, the above-mentioned throttling arrangement of mentioning comprises first throttle device 8 and second throttling arrangement 9, the A end of cross valve 4 is connected with the output of condenser 2, the C end of cross valve 4 is connected with the suction end of compressor 1, the B end of cross valve 4 connects the output of supplementary heat exchanger 5 on the one hand by first throttle device 8, the input that connects main heat exchanger 10 in addition on the one hand by second throttling arrangement 9, the D end of cross valve 4 is connected with the input of supplementary heat exchanger 5, wherein, control module also is connected with temperature sensor and humidity sensor (not showing) in Fig. 1, be respectively applied to measure temperature and humidity, control module is controlled the work of above-mentioned electronic devices and components, by outage and the power down of control cross valve 4, and then the flow direction of control cold-producing medium.When cross valve 4 power down, refrigerant flow direction is A → B, this moment, duty was: compressor 1 start, the high temperature and high pressure gas of discharging enters condenser 2, cold-producing medium in condenser 2 by carrying out condensation under the effect of condensation fan 3, the refrigerant liquid of condensed relative higher temperature enters indoor set by online pipe, at first by cross valve 4, at this moment, reversal valve is in off-position, flows to be A → B, then through the throttling hypotensive effect of second throttling arrangement 9, cold-producing medium become low-temp low-pressure liquid enter main heat exchanger 10 absorb heat the evaporation after, get back to compressor 1 by online pipe, reached the purpose of cool-down dehumidification.When cross valve 4 powers on, refrigerant flow direction is A → D, this moment, duty was: compressor 1 start, the high temperature and high pressure gas of discharging enters condenser 2, cold-producing medium in condenser by carrying out condensation under the effect of condensation fan 3, the refrigerant liquid of condensed relative higher temperature enters indoor set by online pipe, at first by four-way change-over valve 4, at this moment, reversal valve is in "on" position, flowing to is A → D, and cold-producing medium enters auxilliary heat exchanger 5 further condensation heat releases, passes through the preliminary throttling step-down of first throttle device 8 then, further throttling hypotensive effect through second throttling arrangement, cold-producing medium becomes low-temp low-pressure liquid and enters main heat exchanger 10 and absorb heat after the evaporation, gets back to compressor 1 by online pipe, has reached constant temperature this moment or has heated up the purpose of dehumidifying.
In the present embodiment by supplementary heat exchanger 5 and cross valve 4 are set, when needs dehumidify and keep former temperature or intensification, enter main heat exchanger 10 by control cross valve 4 and then control cold-producing medium then through supplementary heat exchanger 5, condensation of refrigerant heat release during through supplementary heat exchanger 5, therefore, the wind that the quilt that blows out from main heat exchanger 10 is lowered the temperature is during through supplementary heat exchanger 5, heat, utilize supplementary heat exchanger 5 recovery section energy, therefore, can reach the air that makes after the dehumidifying and keep the temperature that enters before the main heat exchanger 10, by the rotating speed of control condenser fan 3 and by controlling the aperture of first throttle device 8, regulate refrigerant flow, regulate the load on main heat exchanger 10 and the auxilliary heat exchanger 5, realize improving the purpose of air-conditioning leaving air temp.Whole process need not to use electronic heater to heat, and is energy-conservation, improves heat utilization efficiency.
In order to prevent entering cross valve 4 from the cold-producing medium refluence that supplementary heat exchanger 5 flows out, preferably also be connected with check valve at the B of described cross valve end.
Further again, described first throttle device 8 comprises electric expansion valve 6 and check valve 7, realizes the effect of condensation of refrigerant heat release and prevents that cold-producing medium from flowing backwards.
Wherein, described second throttling arrangement 9 is electric expansion valve, and certainly, its device that also can adopt capillary, heating power expansion valve etc. to have throttling function is realized.
Preferably, described condenser, main heat exchanger, supplementary heat exchanger are copper pipe aluminum fin formula heat exchanger.
The control method of the thermostatic and humidistatic air conditioning unit group of present embodiment is specially, and in conjunction with flow chart shown in Figure 2, described control method may further comprise the steps:
(1), detects indoor humidity H, the section of declaring indoor humidity HS and the magnitude relationship of setting humidity H1;
(2), if H≤H1, then move humidification system, namely control humidifier unlatching work, carry out humidification;
(3), if H＞H1, temperature T in the sensing chamber then, the difference Δ T of the section of declaring indoor temperature T and design temperature T1 and the magnitude relationship of precision T2:
If Δ T＞T2, then move the cool-down dehumidification system, that is: control cross valve outage, the cold-producing medium that compressor extrudes is gone into the main heat exchanger evaporation of absorbing heat through cross valve, second throttling arrangement are laggard successively after condenser carries out the condensation heat release,
If ﹣ T2＜Δ T＜T2, then move the constant temperature dehumidification system, that is: control cross valve energising, the cold-producing medium that compressor extrudes is after the preliminary condensation heat release of condenser, enter the further condensation heat release of supplementary heat exchanger through cross valve, go into main heat exchanger, the evaporation of absorbing heat through first throttle device, second throttling arrangement are laggard successively then
If Δ T＜﹣ T2, then move the intensification dehumidification system, that is: control cross valve energising, reduce the rotating speed of the condensation fan of condenser, the cold-producing medium that compressor extrudes is after the preliminary condensation heat release of condenser, enter the further condensation heat release of supplementary heat exchanger through cross valve, go into main heat exchanger, the evaporation of absorbing heat through first throttle device, second throttling arrangement are laggard successively then.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (5)
1. thermostatic and humidistatic air conditioning unit group, comprise compressor, condenser, throttling arrangement, and the main heat exchanger closed circuit that is linked in sequence and forms, it is characterized in that, also comprise the cross valve that is connected with control module respectively, supplementary heat exchanger, and humidifier, described supplementary heat exchanger is arranged between main heat exchanger and the air-supply passage outlet, described humidifier is arranged between heat exchanger fan and the main heat exchanger, described throttling arrangement comprises first throttle device and second throttling arrangement, the A end of described cross valve is connected with the output of condenser, the C end of described cross valve is connected with the suction end of compressor, the B end of described cross valve connects the output of supplementary heat exchanger on the one hand by the first throttle device, the input that connects main heat exchanger in addition on the one hand by second throttling arrangement, the D end of described cross valve is connected with the input of supplementary heat exchanger, and described control module also is connected with temperature sensor and humidity sensor.
2. thermostatic and humidistatic air conditioning unit group according to claim 1 is characterized in that, the B end of described cross valve also is connected with check valve.
3. thermostatic and humidistatic air conditioning unit group according to claim 1 and 2 is characterized in that, described first throttle device comprises electric expansion valve and check valve.
4. thermostatic and humidistatic air conditioning unit group according to claim 1 and 2 is characterized in that, described second throttling arrangement is electric expansion valve.
5. thermostatic and humidistatic air conditioning unit group according to claim 1 and 2 is characterized in that, described condenser, main heat exchanger, supplementary heat exchanger are copper pipe aluminum fin formula heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057334 CN203147937U (en) | 2013-02-01 | 2013-02-01 | Constant temperature and humidity air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057334 CN203147937U (en) | 2013-02-01 | 2013-02-01 | Constant temperature and humidity air conditioning unit |
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| Publication Number | Publication Date |
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| CN203147937U true CN203147937U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320057334 Expired - Lifetime CN203147937U (en) | 2013-02-01 | 2013-02-01 | Constant temperature and humidity air conditioning unit |
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| CN (1) | CN203147937U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN111031759A (en) * | 2019-12-20 | 2020-04-17 | 漳州科华技术有限责任公司 | Machine room air conditioning device and control method |
| CN112797598A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
-
2013
- 2013-02-01 CN CN 201320057334 patent/CN203147937U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN103075768B (en) * | 2013-02-01 | 2016-01-27 | 海信（山东）空调有限公司 | Thermostatic and humidistatic air conditioning unit group and control method |
| CN111031759A (en) * | 2019-12-20 | 2020-04-17 | 漳州科华技术有限责任公司 | Machine room air conditioning device and control method |
| CN112797598A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
| CN112797598B (en) * | 2020-12-30 | 2022-07-26 | 宁波奥克斯电气股份有限公司 | Indoor unit control method and device of multi-connected air conditioner and air conditioner |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |