CN202734105U - Parallel type air conditioner and temperature regulation cabinet all-in-one machine - Google Patents
Parallel type air conditioner and temperature regulation cabinet all-in-one machine Download PDFInfo
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- CN202734105U CN202734105U CN 201220314865 CN201220314865U CN202734105U CN 202734105 U CN202734105 U CN 202734105U CN 201220314865 CN201220314865 CN 201220314865 CN 201220314865 U CN201220314865 U CN 201220314865U CN 202734105 U CN202734105 U CN 202734105U
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Abstract
The utility model discloses a parallel type air conditioner and temperature regulation cabinet all-in-one machine which is characterized in that a compressor and an outdoor heat exchanger are connected by a copper pipe to form a circulation pipeline; the indoor air conditioner heat exchanger and an indoor temperature regulation cabinet heat exchanger are connected in parallel and then connected between the compressor and the outdoor heat exchanger; a jet conduction device is arranged between the indoor air conditioner heat exchanger and the suction inlet of the compressor; the outlet end of the indoor air conditioner heat exchanger is connected with the jetting end of the jet conduction device through a refrigerant pipe; the outlet end of the jet conduction device is connected with the suction inlet of the compressor; and the outlet end of the indoor air conditioner heat exchanger is connected with the conduction end of the jet conduction device. The indoor air conditioner heat exchanger and the indoor temperature regulation cabinet heat exchanger of the all-in-one machine adopt a tandem design, so that the problem of reflux resulting from pressure imbalance is solved.
Description
Technical field
The utility model relates to air-conditioning controlled temperature cabinet all-in-one technical field, particularly a kind of parallel type air-conditioner and controlled temperature cabinet all-in-one.
Background technology
Existing air-conditioning controlled temperature cabinet all-in-one has following two kinds of production methods:
One, air-conditioning and controlled temperature cabinet respectively have and overlap independently refrigerant-cycle systems; Both are made of one for certain purpose in manufacture process, and the simple stack of two refrigerant circulation systems has not only increased bulk without reason, and does not have novelty in technical field, does not repeat them here.
Two, the air-conditioning controlled temperature cabinet shares a cover refrigerant-cycle systems, and the room conditioning heat exchanger is connected that parallel way connects with indoor temperature control case heat exchanger.In this kind mode, because two heat exchangers are in parallel.Yet the required temperature range of room conditioning heat exchanger and indoor temperature control case heat exchanger is different; Namely the outlet pressure of the cold-producing medium in two heat exchangers is different.If establishing two heat exchanger entrance point refrigerant pressures is P, in order to realize the temperature effect of air-conditioning and controlled temperature cabinet, refrigerant pressure is P1 behind the then shunting process room conditioning heat exchanger, is P2 through refrigerant pressure behind the indoor temperature control case heat exchanger, and P1 P2, and difference is larger.After through two heat exchangers, when compiling one the tunnel, cold-producing medium can cause room conditioning heat exchanger branch road cold-producing medium to reflux to indoor temperature control case heat exchanger branch road so; Can have a strong impact on like this performance of room conditioning and indoor temperature control case.
The utility model content
Utility model purpose of the present utility model is the technical deficiency for existing air-conditioning controlled temperature cabinet all-in-one, provides a kind of preventing to cause the parallel type air-conditioner and the controlled temperature cabinet all-in-one that reflux because of pressure imbalance.
For realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is:
A kind of parallel type air-conditioner and controlled temperature cabinet all-in-one are provided, and compressor, outdoor heat exchanger connect into into circulation line by copper pipe, the room conditioning heat exchanger with access between compressor and the outdoor heat exchanger after indoor temperature control case heat exchanger is in parallel; The room conditioning heat exchanger forms room conditioning heat exchanger branch road, and indoor temperature control case heat exchanger forms indoor temperature control case heat exchanger branch road; Described room conditioning heat exchanger branch road is provided with the first throttle expansion valve, and described indoor temperature control case heat exchanger branch road is provided with the second throttle expansion valve; Be provided with the injection drainage system between the suction inlet of described room conditioning heat exchanger and compressor; The port of export of room conditioning heat exchanger is connected with the ejection end of spraying drainage system by refrigerant pipe, and the port of export that sprays drainage system is connected with the suction inlet of compressor, and indoor temperature control case heat exchanger exit end is connected with the drainage end that sprays drainage system.
Preferably, described compressor is frequency-changeable compressor, and first throttle expansion valve and the second throttle expansion valve are electric expansion valve.
Preferably, be provided with the first control valve on the described room conditioning heat exchanger branch road, described the first control valve is used for the break-make that the control cold-producing medium flows at the room conditioning heat exchanger.
Preferably, be provided with the second control valve on the described indoor temperature control case heat exchanger branch road, described the second control valve is used for the break-make that the control cold-producing medium flows at indoor temperature control case heat exchanger.
Preferably, the mode that described air-conditioning and controlled temperature cabinet all-in-one air-conditioning and controlled temperature cabinet move simultaneously has three kinds, is respectively that air-conditioning and controlled temperature cabinet are taken into account the method for operation, the preferential method of operation of air-conditioning and the preferential method of operation of controlled temperature cabinet.
Preferably, described air-conditioning and controlled temperature cabinet all-in-one are when air-conditioning and controlled temperature cabinet are taken into account the method for operation, and the first throttle expansion valve is according to air-conditioning cold flow demand size adjustment aperture; The second throttle expansion valve is according to controlled temperature cabinet refrigeration requirement size adjustment aperture; The frequency of compressor is taken into account the demand of room conditioning heat exchanger and controlled temperature cabinet, and take the compressor frequency Hy of air-conditioning requirement as main, the compressor frequency Ht that requires take indoor temperature control case heat exchanger is as auxiliary.
Preferably, described air-conditioning and controlled temperature cabinet all-in-one are when the preferential method of operation of air-conditioning, according to air-conditioning cold flow demand size adjustment, the second throttle expansion valve is regulated aperture according to the difference of the real time temperature in the controlled temperature cabinet and design temperature fully for first throttle expansion valve and compressor frequency.
Preferably, described air-conditioning and controlled temperature cabinet all-in-one are when the preferential method of operation of controlled temperature cabinet, and first throttle expansion valve opening, the second throttling expansion valve opening and compressor frequency are all taken into account the method for operation less than both.
The utility model has following beneficial effect with respect to prior art:
The utility model air-conditioning controlled temperature cabinet all-in-one has adopted the injection drainage system, by unified refrigeration system, satisfy simultaneously the operation of various ways, guarantee when using respectively, good operational effect is arranged in the various situations of using simultaneously, when demand is large, can efficiently satisfy the demands, when demand is little, reduce the frequency energy saving of compressor.
Description of drawings
Fig. 1 is the system diagram of the utility model embodiment one;
Fig. 2 is the air-conditioning of the utility model embodiment three and the system diagram that controlled temperature cabinet moves simultaneously;
Fig. 3 is the system diagram of the controlled temperature cabinet isolated operation of the utility model embodiment three;
Fig. 4 is the system diagram of the air-conditioning isolated operation of the utility model embodiment three.
The specific embodiment
Below in conjunction with the drawings and specific embodiments utility model purpose of the present utility model is described in further detail, embodiment can not give unnecessary details one by one at this, but therefore embodiment of the present utility model is not defined in following examples.Unless stated otherwise, material and the processing method of the utility model employing are the art conventional material and processing method.
As shown in Figure 1, compressor 1, outdoor heat exchanger 2, first throttle expansion valve 4 and room conditioning heat exchanger 5 connect into circulation line by copper pipe successively.The cold-producing medium that closes in the copper pipe flows along refrigerant flow direction 11 directions.Between room conditioning heat exchanger 5 and compressor 1 suction inlet, be provided with and spray drainage system 6.Spray drainage system and comprise ejection end, drainage end and the port of export, after the cold-producing medium of high-pressure high-flow enters ejection end, through spraying flow guiding structure, the cold-producing medium of ejection end can form certain negative pressure, after the refrigerant mixed that the cold-producing medium of the low-pressure low flow that the drainage end enters just can enter with ejection end, discharge from the port of export like this.
As shown in Figure 1, the refrigerant pipe that flows out from room conditioning heat exchanger 5 connects the ejection end of spraying drainage system 6, and the port of export that sprays drainage system 6 connects the suction inlet of compressor 1; Between described first throttle expansion valve 4 and the outdoor heat exchanger 2 branch road 10 is arranged, this branch road 10 be linked in sequence the second throttle expansion valve 8, indoor temperature control case heat exchanger 9, indoor temperature control case heat exchanger 9 ports of export are connected to the drainage end that sprays drainage system 6, discharging from the port of export through the cold-producing medium that sprays drainage system 6 mixing, enter into the air entry of compressor 1.In this system, owing to increased injection drainage system 6, so through room conditioning heat exchanger 5, after indoor temperature control case heat exchanger 9 compiles, the a large amount of cold-producing mediums that flow through from room conditioning heat exchanger 5 become jet in spraying drainage system 6, this effluxvelocity is very fast, the zone forms low-pressure area around, this low-pressure area pressure is less than the pressure of the cold-producing medium that flows out from indoor temperature control case heat exchanger 9, so this fluid can import the cold-producing medium that flows out from room conditioning heat exchanger 5, namely can not occur because the refrigerant pressure that cold-producing medium warm area difference causes is different, and make the situation of back flow of refrigerant.
Present embodiment is except following characteristics, and other are all identical with embodiment 1: compressor 1 is frequency-changeable compressor, and first throttle expansion valve 4 and the second throttle expansion valve 8 are electric expansion valve.Compressor selects frequency-changeable compressor and throttle mechanism to select electric expansion valve, and variation real-time regulation system refrigerant circulation flow that can be according to the actual requirements is through the pressure reduction of the cold-producing medium of room conditioning heat exchanger 5 and indoor temperature control case heat exchanger 9.
The concrete method of operation has following three kinds, is respectively that air-conditioning and controlled temperature cabinet move simultaneously both and take into account that operation, air-conditioning preferentially move, controlled temperature cabinet preferentially moves.According to the operational mode operation that the user sets, perhaps adopt automatic mode, satisfy situation according to the priority condition that whether reaches setting, automatically take three kinds of operation forms.
The method of operation one, air-conditioning and controlled temperature cabinet move simultaneously both and take into account operation.When air-conditioning and controlled temperature cabinet moved simultaneously, this moment, system will take into account both situation simultaneously, and wherein air-conditioning is controlled to be the characteristic according to common convertible frequency air-conditioner, and when the refrigerating capacity of demand was large, the aperture of first throttle expansion valve was also larger, and the frequency of compressor is higher simultaneously; When the refrigerating capacity of demand hour, the first throttle expansion valve opening reduces, and the frequency of compressor reduces; Controlled temperature cabinet operates according to common refrigerating box (cooling condition), and when the refrigerating capacity of demand was large, the aperture of the second throttle expansion valve was also larger, and when the refrigerating capacity of demand hour, the first throttle expansion valve opening reduces.The frequency of compressor is taken into account the demand of air-conditioning and controlled temperature cabinet, and take the compressor frequency Hy of air-conditioning requirement as main, the compressor frequency Ht that requires take controlled temperature cabinet is as auxiliary, as: take 80%*Hy+20%*Ht as actual running frequency.The method of operation that adopts both to take into account can make air-conditioning and controlled temperature cabinet all reach a comparatively desirable effect.Make things convenient for the user to the demand of two kinds of electrical equipment.
The method of operation two, it is preferential that air-conditioning and controlled temperature cabinet move air-conditioning simultaneously, when air-conditioning and controlled temperature cabinet move simultaneously, this moment, preferential air-conditioning was regulated interior space temperature because user's demand is different, as, when entering the room of not turning on the aircondition, and the requirement of this time controlled temperature cabinet refrigeration is so not high.With both take into account comparison simultaneously in the method for operation one, air-conditioning is controlled to be the characteristic according to common convertible frequency air-conditioner, and when the refrigerating capacity of demand was large, the aperture of first throttle expansion valve was also larger, and the frequency of compressor is higher simultaneously; When the refrigerating capacity of demand hour, the first throttle expansion valve opening reduces, and the frequency of compressor reduces, and the frequency of compressor determines according to the demand of operation of air conditioner.Usually, the refrigerant flow of this kind form air-conditioning side is sufficient, so, in spraying drainage system 6, form the very negative pressuren zone of low-pressure, can strengthen like this pressure reduction of controlled temperature cabinet heat exchanger inlet and outlet, thereby realize that the second throttle expansion valve 8 can regulate aperture according to the difference of the real time temperature in the controlled temperature cabinet and design temperature, and realize lower temperature perhaps reaching faster design temperature.
The method of operation three, it is preferential that air-conditioning and controlled temperature cabinet move controlled temperature cabinet simultaneously, and when described air-conditioning and controlled temperature cabinet moved simultaneously, this moment, user priority was regulated the temperature in the controlled temperature cabinet, and the effect requirements of air-conditioning is not high.Take into account simultaneously comparison with both, for air-conditioning, as assistance application, the first throttle expansion valve 4 of its stream is far smaller than the aperture when taking into account simultaneously; For controlled temperature cabinet, the refrigerant amount of indoor temperature control case heat exchanger 9 of need to flowing through is less, this moment, the frequency of compressor was less, the aperture of the second throttle expansion valve is also at a smaller value, and namely first throttle expansion valve opening, the second throttling expansion valve opening and compressor frequency are all taken into account the method for operation less than both.Although the outlet pressure of compressor increases, but because the aperture of two throttle expansion valves is all less, so the import of compressor and the larger pressure reduction that gone out interruption-forming, thereby the temperature that can guarantee the controlled temperature cabinet space can have larger adjustable range, and realize lower temperature perhaps realizing faster design temperature.Simultaneously, the frequency of compressor is low, so that the energy consumption of whole system obviously reduces.
Embodiment 3
Present embodiment is except following characteristics, other are all identical with embodiment 1: as shown in Figure 2, be from the different of embodiment 1, outdoor heat exchanger 2 exports on the pipeline of room conditioning heat exchanger 5 and is provided with the first control valve 3, same, this first control valve 3 is arranged on the back of room conditioning heat exchanger 5 also can play the effect of blocking room conditioning heat exchanger 5 flow of refrigerant.
As shown in Figure 3, when the first control valve 3 is closed, when the second control valve 7 is opened, by 9 heat absorptions of indoor temperature control case heat exchanger, flow to the air entry of compressor 1 along refrigerant flow direction 11 after the cold-producing medium throttling.Because the first control valve 3 is closed, so air-conditioning does not move.In excessive season, when perhaps indoor temperature is suitable, can adopt this mode, the function of chilled food and other article is provided.
As shown in Figure 4, the first control valve 3 is opened, and when the second control valve 7 is closed, by 5 heat absorptions of room conditioning heat exchanger, flows to the air entry of compressor 1 along refrigerant flow direction 11 after the cold-producing medium throttling.Because the first control valve 7 is closed, so controlled temperature cabinet does not move.When not needing chilled food, can adopt this form, reduce unnecessary cold waste.
Situation when below only having described system's running refrigerating after increasing four-way change-over valve, can so that refrigeration system becomes heat pump, can realize the function of air-conditioning heating and controlled temperature cabinet heating equally.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model.Be that all equalizations of doing according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (4)
1. a parallel type air-conditioner and controlled temperature cabinet all-in-one, compressor, outdoor heat exchanger connect by copper pipe, it is characterized in that: the room conditioning heat exchanger with access between compressor and the outdoor heat exchanger after indoor temperature control case heat exchanger is in parallel; The room conditioning heat exchanger forms room conditioning heat exchanger branch road, and indoor temperature control case heat exchanger forms indoor temperature control case heat exchanger branch road; Described room conditioning heat exchanger branch road is provided with the first throttle expansion valve, and described indoor temperature control case heat exchanger branch road is provided with the second throttle expansion valve; Be provided with the injection drainage system between the suction inlet of described room conditioning heat exchanger and compressor; The port of export of room conditioning heat exchanger is connected with the ejection end of spraying drainage system by refrigerant pipe, and the port of export that sprays drainage system is connected with the suction inlet of compressor, and indoor temperature control case heat exchanger exit end is connected with the drainage end that sprays drainage system.
2. parallel type air-conditioner according to claim 1 and controlled temperature cabinet all-in-one, it is characterized in that: described compressor is frequency-changeable compressor, first throttle expansion valve and the second throttle expansion valve are electric expansion valve.
3. parallel type air-conditioner according to claim 1 and controlled temperature cabinet all-in-one is characterized in that: be provided with the first control valve on the described room conditioning heat exchanger branch road, the break-make that described the first control valve flows at the room conditioning heat exchanger for the control cold-producing medium.
4. parallel type air-conditioner according to claim 1 and controlled temperature cabinet all-in-one is characterized in that: be provided with the second control valve on the described indoor temperature control case heat exchanger branch road, the break-make that described the second control valve flows at indoor temperature control case heat exchanger for the control cold-producing medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314865 CN202734105U (en) | 2012-06-29 | 2012-06-29 | Parallel type air conditioner and temperature regulation cabinet all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314865 CN202734105U (en) | 2012-06-29 | 2012-06-29 | Parallel type air conditioner and temperature regulation cabinet all-in-one machine |
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| CN202734105U true CN202734105U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220314865 Expired - Lifetime CN202734105U (en) | 2012-06-29 | 2012-06-29 | Parallel type air conditioner and temperature regulation cabinet all-in-one machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734886A (en) * | 2012-06-29 | 2012-10-17 | 广东美的电器股份有限公司 | Parallel air conditioner and temperature regulating box all-in-one machine and operation control method thereof |
| CN104135839B (en) * | 2014-08-13 | 2017-01-04 | 苏州市朗吉科技有限公司 | A kind of machine room-refrigerating plant integrated cabinet system |
| CN107606695A (en) * | 2017-08-22 | 2018-01-19 | 合肥美的暖通设备有限公司 | A kind of air conditioner and its control method |
-
2012
- 2012-06-29 CN CN 201220314865 patent/CN202734105U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734886A (en) * | 2012-06-29 | 2012-10-17 | 广东美的电器股份有限公司 | Parallel air conditioner and temperature regulating box all-in-one machine and operation control method thereof |
| CN104135839B (en) * | 2014-08-13 | 2017-01-04 | 苏州市朗吉科技有限公司 | A kind of machine room-refrigerating plant integrated cabinet system |
| CN107606695A (en) * | 2017-08-22 | 2018-01-19 | 合肥美的暖通设备有限公司 | A kind of air conditioner and its control method |
| CN107606695B (en) * | 2017-08-22 | 2020-06-26 | 合肥美的暖通设备有限公司 | Air conditioner and control method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131202 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Guangdong, Shunde Town, Penglai Road, Industrial Avenue, Patentee before: GD MIDEA HOLDING CD., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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| CX01 | Expiry of patent term |