CN100392331C - Refrigeration and dehumidification adjustable refrigeration system - Google Patents
Refrigeration and dehumidification adjustable refrigeration system Download PDFInfo
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- CN100392331C CN100392331C CNB2006100279693A CN200610027969A CN100392331C CN 100392331 C CN100392331 C CN 100392331C CN B2006100279693 A CNB2006100279693 A CN B2006100279693A CN 200610027969 A CN200610027969 A CN 200610027969A CN 100392331 C CN100392331 C CN 100392331C
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Abstract
The present invention relates to a refrigeration system with adjustable cooling and dehumidifying capability, which belongs to the technical field of refrigeration. The present invention comprises a compressor, a condenser, a stop valve, a high temperature throttle valve, a middle heat exchanger, a low temperature throttle valve, an evaporator and a blower, wherein an outlet of the compressor is connected with an inlet of the condenser, an outlet of the condenser is divided into two paths, one path is connected with an inlet of the high pressure side of the middle heat exchanger, and the other path is connected with an inlet of the stop valve; an outlet of the stop valve is connected with an inlet of the high temperature throttle valve, and an outlet of the high temperature throttle valve is connected with an inlet of the lower pressure side of the middle heat exchanger; an outlet of the lower pressure side of the middle heat exchanger is connected with a middle air inlet of the compressor, and an outlet of the high pressure side of the middle heat exchanger is connected with an inlet of the low temperature throttle valve; an outlet of the low temperature throttle valve is connected with an inlet of the evaporator, and an outlet of the evaporator is connected with an inlet of the low pressure side of the compressor; the blower is positioned at the downstream of air flow passing through the evaporator. The present invention can cause the cooling capability and the dehumidifying capability to be mutually converted, which enhances the function of the system and is good for enhancing the efficiency of cooling and dehumidifying.
Description
Technical field
The present invention relates to a kind of refrigeration system, relate in particular to a kind of cooling and the adjustable refrigeration system of dehumidifying effect, be used for the cooling and the dehumidifying of air conditioning, belong to refrigeration technology field.
Background technology
When indoor air temperature is too high, can cause human body uncomfortable, therefore need refrigeration system to take away heat, reduce temperature.When air humidity is too high, can cause the uncomfortable of human body equally, need to rely on the refrigeration system dehumidifying.In order to reach the comfortableness requirement of room air, during the work of summer air-conditioning device, generally need bear the task of reducing air themperature and air humidity simultaneously.Iff being purpose to reduce air themperature, the cold-producing medium evaporating temperature in the air-conditioner does not need very low.Evaporating temperature is high more, and the refrigerating capacity of air-conditioner is just big, and efficient is also high simultaneously, if therefore light can be kept one than higher evaporating temperature from the cooling angle.If but air-conditioner needs dehumidifying simultaneously, then evaporating temperature should be starkly lower than the dew-point temperature of air, and the evaporating temperature of this moment is lower, causes the refrigerating capacity of air-conditioner and efficient all lower.
When present air-conditioner designs, considered the requirement of the cooling and two aspects that dehumidify.The advantage of these air-conditioners is to lower the temperature simultaneously and to dehumidify.Their shortcoming is that the ability of cooling and dehumidifying can not be regulated mutually, and when not too needing to dehumidify when need to strengthen the cooling ability under high-temperature condition, still in dehumidifying, the cooling ability does not increase air-conditioner; And when the not high and humidity of air themperature is very big, in the process of dehumidifying, make air themperature descend, thus be lower than needed temperature, not only energy-producing waste, and cause uncomfortable.
For can be when the big cooling ability of needs, make that system is huge a bigger cooling ability, and do not need to reduce and have bigger removal ability when only needing to dehumidify when indoor air temperature, need make refrigeration system in the air-conditioner have the function that cooling and dehumidifying effect transform adjusting mutually.
Find through open source literature retrieval prior art, the major measure that improves the air-conditioner comfortableness at present is to change air supply mode, rather than be main means to improve refrigeration system, for example Chinese patent application number is " many air supply patterns calm type split type room air conditioner " patent of 200410066799.0, promptly be by setting up multiple air supply pattern, reduce noise of air and increase comfortableness, do not relate to the conversion of cooling and dehumidifying effect.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, design provides a kind of cooling and the adjustable refrigeration system of dehumidifying effect.The present invention can make cooling ability and dehumidifying effect transform mutually, has not only promoted the function of system, and helps improving cooling and the efficient that dehumidifies.
The present invention is achieved by the following technical solutions, the present invention includes compressor, condenser, stop valve, high temperature choke valve, intermediate heat exchanger, cryogenic throttle valve, evaporimeter, blower fan.
Compressor outlet is connected with condenser inlet, condensator outlet is divided into two the tunnel, one the tunnel is connected with the import of intermediate heat exchanger high-pressure side, another road is connected with the stop valve import, the stop valve outlet is connected with the import of high temperature choke valve, the outlet of high temperature choke valve is connected with the import of intermediate heat exchanger low-pressure side, the outlet of intermediate heat exchanger low-pressure side links to each other with air inlet in the middle of the compressor, the outlet of intermediate heat exchanger high-pressure side is connected with the cryogenic throttle valve import, the cryogenic throttle valve outlet links to each other with evaporator, evaporator outlet is connected with the import of compressor low-pressure side, and blower fan is positioned at the downstream by the air stream of evaporimeter.
When the cooling Capability Requirement is big, and require to close stop valve when little for dehumidifying effect.Do not have cold-producing medium to flow through the low-pressure side pipeline of intermediate heat exchanger this moment, the low-pressure side pipeline of intermediate heat exchanger does not produce cold, the cold-producing medium that flows through intermediate heat exchanger high-pressure side pipeline like this can not obtain cooling at intermediate heat exchanger, thereby the feasible preceding refrigerant temperature of cryogenic throttle valve that enters is higher, and flow is bigger.By the aperture of suitable increasing cryogenic throttle valve and the rotating speed of blower fan, can make the cold-producing medium evaporating temperature in the evaporimeter higher, the refrigeration system refrigerating capacity is bigger, and it is more that the air themperature that flows through evaporimeter is descended, but humidity does not descend or descends seldom.
When needs strengthen dehumidifying effect, and when allowing the cooling ability to descend to some extent, open stop valve.The part cold-producing medium that this moment, condenser came out, the stop valve of flowing through, and the throttling cooling of process high temperature choke valve, in intermediate heat exchanger, emit the middle air inlet that flows back to compressor behind the cold, and remaining cold-producing medium, be further cooled cooling in intermediate heat exchanger, cryogenic throttle valve and the throttling cooling of flowing through again absorbs the import of returning compressor behind the heat in evaporimeter.Situation when closing with stop valve is compared, and the refrigerant flow before the cryogenic throttle valve descends, but temperature also descends, cold-producing medium evaporating temperature behind the feasible cryogenic throttle valve of flowing through is lower, therefore has bigger dehumidifying effect, but because flow is less, therefore refrigerating capacity descends, and causes the cooling ability drop.Further will reduce the ability that cold that air themperature uses is converted into dehumidifying if desired, and then need to turn down the aperture of cryogenic throttle valve, and suitably reduce the rotating speed of blower fan.
The present invention has significant advantage and good effect.Refrigeration system of the present invention can make cooling ability and dehumidifying effect transform mutually, has not only promoted the function of system, and helps improving cooling and the efficient that dehumidifies.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, the 1st, compressor, the 2nd, condenser, the 3rd, stop valve, the 4th, high temperature choke valve, the 5th, intermediate heat exchanger, the 6th, cryogenic throttle valve, the 7th, evaporimeter, the 8th, blower fan.
Solid line illustrates the glide path of cold-producing medium among the figure, is shown in dotted line air glide path.
The specific embodiment
As shown in Figure 1, the present invention includes compressor 1, condenser 2, stop valve 3, high temperature choke valve 4, intermediate heat exchanger 5, cryogenic throttle valve 6, evaporimeter 7, blower fan 8.
When the cooling Capability Requirement is big, and require when little for dehumidifying, stop valve 3 is closed.Do not have this moment cold-producing medium to flow through the low-pressure side pipeline of intermediate heat exchanger 5, flow through the cold-producing medium of intermediate heat exchanger 5 high-pressure side pipelines, do not obtain cooling at intermediate heat exchanger 5.By the aperture of suitable increasing cryogenic throttle valve 6 and the rotating speed of blower fan 8, can make evaporimeter 7 emit bigger cold, make the air themperature that flows through evaporimeter 7 descend more.
When needs strengthen dehumidifying effect, and when allowing the cooling ability to descend to some extent, open stop valve 3.The part cold-producing medium that this moment, condenser 2 came out, the stop valve 3 of flowing through, and the throttling cooling of process high temperature choke valve 4, flow back to the middle air inlet of compressor 1 after in intermediate heat exchanger 5, emitting cold, and remaining cold-producing medium is further cooled cooling in intermediate heat exchanger 5, cryogenic throttle valve 6 and the throttling cooling of flowing through again, in evaporimeter 7, return the import of compressor 1 behind the absorption heat,, therefore have bigger dehumidifying effect because the evaporating temperature of this moment is lower.Further will reduce the ability that cold that air themperature uses is converted into dehumidifying if desired, and then need to turn down the aperture of cryogenic throttle valve 6, and suitably reduce the rotating speed of blower fan 8.
Claims (5)
1. cooling and the adjustable refrigeration system of dehumidifying effect, comprise compressor (1), condenser (2), stop valve (3), high temperature choke valve (4), intermediate heat exchanger (5), cryogenic throttle valve (6), evaporimeter (7), blower fan (8), it is characterized in that: compressor (1) outlet is connected with condenser (2) import, condenser (2) outlet is divided into two the tunnel, one the tunnel is connected with intermediate heat exchanger (5) high-pressure side import, another road is connected with stop valve (3) import, stop valve (3) outlet is connected with high temperature choke valve (4) import, high temperature choke valve (4) outlet is connected with intermediate heat exchanger (5) low-pressure side import, the outlet of intermediate heat exchanger (5) low-pressure side links to each other with air inlet in the middle of the compressor (1), the outlet of intermediate heat exchanger (5) high-pressure side is connected with cryogenic throttle valve (6) import, cryogenic throttle valve (6) outlet links to each other with evaporimeter (7) import, evaporimeter (7) outlet is connected with compressor (1) low-pressure side import, and blower fan (8) is positioned at the downstream by the air stream of evaporimeter (7).
2. cooling as claimed in claim 1 and the adjustable refrigeration system of dehumidifying effect is characterized in that, compressor (1) is for there being the screw compressor of middle bleeding point.
3. cooling as claimed in claim 1 and the adjustable refrigeration system of dehumidifying effect is characterized in that high temperature choke valve (4) is heating power expansion valve or electric expansion valve.
4. cooling as claimed in claim 1 and the adjustable refrigeration system of dehumidifying effect is characterized in that cryogenic throttle valve (6) is a heating power expansion valve.
5. cooling as claimed in claim 1 and the adjustable refrigeration system of dehumidifying effect is characterized in that, blower fan (8) is the variable blower fan of rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100279693A CN100392331C (en) | 2006-06-22 | 2006-06-22 | Refrigeration and dehumidification adjustable refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100279693A CN100392331C (en) | 2006-06-22 | 2006-06-22 | Refrigeration and dehumidification adjustable refrigeration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865811A CN1865811A (en) | 2006-11-22 |
| CN100392331C true CN100392331C (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100279693A Expired - Fee Related CN100392331C (en) | 2006-06-22 | 2006-06-22 | Refrigeration and dehumidification adjustable refrigeration system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910339B (en) * | 2016-06-08 | 2017-12-08 | 郑州轻工业学院 | A kind of double-screw compressor superfeed pressure control system and method |
| CN109654615B (en) * | 2018-11-13 | 2022-01-21 | 重庆海尔空调器有限公司 | Apparatus for dehumidifying and control method thereof |
| CN110953755A (en) * | 2019-10-31 | 2020-04-03 | 清华大学 | Temperature-adjustable dehumidifying air-conditioning system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3779031A (en) * | 1970-08-21 | 1973-12-18 | Hitachi Ltd | Air-conditioning system for cooling dehumidifying or heating operations |
| US5305822A (en) * | 1992-06-02 | 1994-04-26 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having a dehumidifying operation function |
| JPH08261575A (en) * | 1995-03-22 | 1996-10-11 | Sanyo Electric Co Ltd | Freezing device using nonazeotropic refrigerant mixture |
| CN2495936Y (en) * | 2001-05-08 | 2002-06-19 | 潘启川 | Moisture removing type air conditioner with waste heat reutilization structure |
| JP2003232538A (en) * | 2002-02-07 | 2003-08-22 | Daikin Ind Ltd | Humidity controller |
| CN2703988Y (en) * | 2004-04-30 | 2005-06-08 | 广东科龙电器股份有限公司 | Multifunction air-conditioner |
-
2006
- 2006-06-22 CN CNB2006100279693A patent/CN100392331C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3779031A (en) * | 1970-08-21 | 1973-12-18 | Hitachi Ltd | Air-conditioning system for cooling dehumidifying or heating operations |
| US5305822A (en) * | 1992-06-02 | 1994-04-26 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having a dehumidifying operation function |
| JPH08261575A (en) * | 1995-03-22 | 1996-10-11 | Sanyo Electric Co Ltd | Freezing device using nonazeotropic refrigerant mixture |
| CN2495936Y (en) * | 2001-05-08 | 2002-06-19 | 潘启川 | Moisture removing type air conditioner with waste heat reutilization structure |
| JP2003232538A (en) * | 2002-02-07 | 2003-08-22 | Daikin Ind Ltd | Humidity controller |
| CN2703988Y (en) * | 2004-04-30 | 2005-06-08 | 广东科龙电器股份有限公司 | Multifunction air-conditioner |
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| Publication number | Publication date |
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| CN1865811A (en) | 2006-11-22 |
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