CN207831739U - A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit - Google Patents
A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit Download PDFInfo
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- CN207831739U CN207831739U CN201820172288.4U CN201820172288U CN207831739U CN 207831739 U CN207831739 U CN 207831739U CN 201820172288 U CN201820172288 U CN 201820172288U CN 207831739 U CN207831739 U CN 207831739U
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Abstract
The utility model discloses a kind of devices for reducing refrigeration and compressor exhaust temperature in heat pump unit, the device is designed with a hydrojet main line and the sub- pipeline of a No.1 hydrojet and No. two sub- pipelines of hydrojet, and hydrojet main line is linked on the pipeline between condenser and throttle expansion valve.Hydrojet electric expansion valve, the mouth spray connection of the sub- pipeline of No.1 hydrojet and compressor are equipped on hydrojet main line, the air entry connection of the sub- pipeline of No. two hydrojets and compressor is equipped with throttle capillary tube on No. two sub- pipelines of hydrojet.When delivery temperature is more than set temperature, start hydrojet electric expansion valve and carries out hydrojet, due to the presence of throttle capillary tube, therefore the refrigerant liquid measure of compressor liquid-spraying mouth and air entry can be reached with reasonable distribution, pass through the combination of two kinds of hydrojet modes, the refrigerant liquid measure excessive caused compressor abrasion damage in middle pressure chamber is entered when can effectively reduce the delivery temperature of compressor, while also avoid the hydrojet mouth spray liquid only by compressor.
Description
Technical field
The utility model is related to a kind of devices for reducing refrigeration and compressor exhaust temperature in heat pump unit.
Background technology
Freezing with heat pump unit, in order to reduce the delivery temperature of compressor, is ensureing that refrigeration oil is not damaged, usually make
The compressor of h and c pump assembly provides two kinds of Liquid injection cooling (tonifying Qi) modes.
Mode one：Gas or liquid or gas-liquid mixed refrigerant are sprayed by the mouth spray (also known as gas supplementing opening) of compressor
In to middle pressure chamber (i.e. among vortex or helical-lobe compressor compression chamber or intermediate position later), to reduce delivery temperature.
The advantages of such fluid infusion mode, is that system effectiveness loss is small, the disadvantage is that, when the spouting liquid mistake for needing reduction temperature
When big, liquid cannot fully flash to gaseous state, so as to cause spray into Machining of Vortex Disk of Vortex Compressor in or helical-lobe compressor screw chamber
The interior refrigerant liquid scale of construction is big, and lubricating oil film dilution damages so as to cause compressor abrasion, reduces the service life of compressor.
Mode two：Refrigerant liquid is injected to by the air entry of compressor in low pressure chamber, to reduce compressor air-discharging
Temperature.
The advantages of such fluid infusion mode, is safety, the disadvantage is that since such mode is the air-breathing temperature by reducing compressor
The delivery temperature to reduce compressor is spent, thus the refrigerant flow needed is big, causes system effectiveness decaying big.
It can be seen that above two hydrojet mode is when individually reducing the delivery temperature of compressor in place of equal Shortcomings.
Utility model content
The purpose of this utility model is that proposing a kind of for reducing refrigeration and compressor exhaust temperature in heat pump unit
Device reduces the temperature of compressor in conjunction with above two hydrojet mode when excessive discharge temperature, to reduce the mill of compressor
Damage.
The utility model to achieve the goals above, adopts the following technical scheme that：
A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit, including a hydrojet main line,
The sub- pipeline of one No.1 hydrojet, the sub- pipeline of No. two hydrojets and a hydrojet electric expansion valve；
One end of hydrojet main line is linked on the pipeline in refrigeration and heat pump unit between condenser and throttle expansion valve,
The other end and the sub- pipeline of No.1 hydrojet, No. two sub- piping connections of hydrojet；Hydrojet electric expansion valve is arranged on hydrojet main line；
The other end of the sub- pipeline of No.1 hydrojet is connected on the mouth spray of compressor；The other end of No. two sub- pipelines of hydrojet connects
It is connected on the air entry of compressor, throttle capillary tube is equipped on No. two sub- pipelines of hydrojet.
Preferably, it is additionally provided with hydrojet solenoid valve on No. two sub- pipelines of hydrojet.
Preferably, hydrojet main line is linked into refrigeration and condenser and throttling expansion in heat pump unit by No.1 three-way pipe
On pipeline between valve, the other end passes through No. two three-way pipes and the sub- pipeline of No.1 hydrojet, No. two sub- piping connections of hydrojet.
Preferably, economizer is equipped between the pipeline between condenser and throttle expansion valve and hydrojet main line.
The utility model has the following advantages that：
Device in the utility model is designed with a hydrojet main line and the sub- pipeline of a No.1 hydrojet and one two
Number sub- pipeline of hydrojet, wherein hydrojet main line is linked on the pipeline between condenser and throttle expansion valve.In hydrojet main line
It is equipped with hydrojet electric expansion valve, the mouth spray connection of the sub- pipeline of No.1 hydrojet and compressor, No. two sub- pipelines of hydrojet and compression
The air entry of machine connects, and throttle capillary tube is equipped on No. two sub- pipelines of hydrojet.When delivery temperature is more than set temperature, start
Hydrojet electric expansion valve carries out hydrojet, due to the presence of throttle capillary tube, can reach compressor liquid-spraying mouth with reasonable distribution
The delivery temperature of compressor can effectively be reduced, simultaneously by the combination of two kinds of hydrojet modes with the refrigerant liquid measure of air entry
The refrigerant liquid measure excessive caused compression in middle pressure chamber is entered when also avoiding the hydrojet mouth spray liquid only by compressor
Machine abrasive damage.A kind of preferred embodiment is additionally provided with hydrojet solenoid valve on No. two sub- pipelines of hydrojet, when delivery temperature is more than setting
When temperature is smaller, hydrojet can be carried out only by the sub- pipeline of No.1 hydrojet, when delivery temperature is more than that set temperature is larger,
While the sub- pipeline of No.1 hydrojet continues hydrojet, start hydrojet solenoid valve, liquid refrigerant also passes through No. two sub- pipelines of hydrojet
Hydrojet solenoid valve, throttle capillary tube spray into compressor air suction mouth, and compressor is reduced by reducing the suction temperature of compressor
Delivery temperature.
Description of the drawings
Fig. 1 is the structural schematic diagram of the device for reducing compressor exhaust temperature in the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of the device for reducing compressor exhaust temperature in the utility model embodiment 2；
Fig. 3 is the structural schematic diagram of the device for reducing compressor exhaust temperature in the utility model embodiment 3；
Fig. 4 is the structural schematic diagram of the device for reducing compressor exhaust temperature in the utility model embodiment 4；
Wherein, 1- hydrojets main line, the sub- pipeline of 2- No.1 hydrojets, No. bis- sub- pipelines of hydrojet of 3-, 4- hydrojet electric expansion valves,
5- condensers, 6- throttle expansion valves, 7- No.1 three-way pipes, No. bis- three-way pipes of 8-, 9- compressors；
10- throttle capillary tubes, 11- four-way valves, 12- evaporators, 13- hydrojet solenoid valves, 14- economizers.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific implementation mode is described in further detail the utility model：
Embodiment 1
As shown in Figure 1, a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit comprising one
The sub- pipeline 3 of 2, No. two hydrojets of the sub- pipeline of 1, No.1 hydrojet of hydrojet main line and a hydrojet electric expansion valve 4.
Wherein, one end of hydrojet main line 1 is linked into refrigeration and heat pump unit between condenser 5 and throttle expansion valve 6
Pipeline on, the sub- pipeline of the other end and No.1 hydrojet 2, No. two hydrojets of sub- pipeline 3 is connect.
Specifically, hydrojet main line 1 is linked into the pipeline between condenser 5 and throttle expansion valve 6 by No.1 three-way pipe 7
On, the other end is connect by the sub- pipeline of No. two three-way pipes 8 and No.1 hydrojet 2, No. two hydrojets of sub- pipeline 3.
Hydrojet electric expansion valve 4 is arranged on hydrojet main line 1.The effect of hydrojet electric expansion valve 4 is, works as compressor
When 9 delivery temperature is more than set temperature, start hydrojet electric expansion valve 4, carries out hydrojet cooling.
The other end of the sub- pipeline of No.1 hydrojet 2 is linked on the mouth spray A of compressor 9；The sub- pipeline of No. two hydrojets 3 it is another
End is linked on the air entry B of compressor 9, and throttle capillary tube 10 is equipped on the sub- pipeline of No. two hydrojets 3.
Air heat exchanger both may be used in condenser 5 in the present embodiment 1, can also use water cooling heat exchanger.
Refrigeration and heat pump unit structure in the present embodiment 1 are known, can be briefly described herein：
Refrigeration and heat pump unit include compressor 9, four-way valve 11, condenser 5, throttle expansion valve 6 and evaporator 12.
Wherein, on the public port that the exhaust outlet C of compressor 9 passes through piping connection to four-way valve 11.
One commutation port of four-way valve 11 is connect by pipeline with condenser 5, another commutation port of four-way valve is logical
It crosses pipeline to connect with evaporator, the third commutation port of four-way valve is connect by pipeline with the air entry of compressor 9.
Condenser 5 is connect by pipeline with throttle expansion valve 6, and throttle expansion valve 6 is connect by pipeline with evaporator 12.
The substantially operation principle of the present embodiment 1 is：
When the delivery temperature of compressor 9 is more than set temperature, starts hydrojet electric expansion valve 4 and carry out hydrojet, due to section
The presence of capillary 10 is flowed, therefore the refrigerant liquid measure of 9 mouth spray of compressor and air entry can be reached with reasonable distribution, passes through two
The combination of kind hydrojet mode, to reduce the delivery temperature of compressor 9, while effectively preventing the mouth spray only by compressor
The refrigerant liquid measure excessive caused compressor abrasion damage in middle pressure chamber is entered when hydrojet, extend compressor uses the longevity
Life.
Embodiment 2
The present embodiment 2 has addressed a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit, the dress
It sets in addition to following technical characteristic and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
As shown in Fig. 2, being additionally provided with hydrojet solenoid valve 13 on the sub- pipeline of No. two hydrojets 3.
The substantially operation principle of the present embodiment 2 is：
When delivery temperature is more than that set temperature is smaller, hydrojet can be carried out only by the sub- pipeline 2 of No.1 hydrojet, work as row
When temperature degree is more than that set temperature is larger, while the sub- pipeline 2 of No.1 hydrojet continues hydrojet, start hydrojet solenoid valve 13, liquid
Cryogen also passes through the hydrojet solenoid valve 13 of the sub- pipeline of No. two hydrojets 3, throttle capillary tube 10 sprays into 9 air entry of compressor.
When excessive discharge temperature, since the present embodiment 2 can reduce compressor by spraying into 9 air entry refrigerant of compressor
Temperature reduces the liquid refrigerant flow for spraying into middle pressure chamber, therefore, it is possible to prevent compressor abrasion from service life being caused to reduce.
Embodiment 3
The present embodiment 3 has addressed a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit, the dress
It sets in addition to following technical characteristic and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
As shown in figure 3, economizer 14 is additionally provided between the pipeline between condenser and throttle expansion valve and hydrojet main line,
The temperature of refrigerant liquid in pipeline before throttle expansion valve 6 can be reduced by the way that the economizer 14 is arranged.
Plate heat exchanger may be used in economizer 14, naturally it is also possible to use flash vessel or other structures form.
Embodiment 4
The present embodiment 4 has addressed a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit, the dress
It sets in addition to following technical characteristic and 2 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 2.
As shown in figure 4, economizer 14 is additionally provided between the pipeline between condenser and throttle expansion valve and hydrojet main line,
The temperature of refrigerant liquid in pipeline before throttle expansion valve 6 can be reduced by the way that the economizer 14 is arranged.
Plate heat exchanger may be used in economizer 14, naturally it is also possible to use flash vessel or other structures form.
Certainly, the preferred embodiment of only the utility model described above, the utility model is not limited to enumerate above-mentioned
Embodiment, it should be noted that for any technical person familiar with the field under the introduction of this specification, that is made is all etc.
With replacement, apparent variant, all falls within the essential scope of this specification, ought to be protected by the utility model.
Claims (4)
1. a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit, which is characterized in that sprayed including one
Liquid main line, the sub- pipeline of a No.1 hydrojet, the sub- pipeline of No. two hydrojets and a hydrojet electric expansion valve；
One end of hydrojet main line is linked on the pipeline in refrigeration and heat pump unit between condenser and throttle expansion valve, another
End and the sub- pipeline of No.1 hydrojet, No. two sub- piping connections of hydrojet；Hydrojet electric expansion valve is arranged on hydrojet main line；
The other end of the sub- pipeline of No.1 hydrojet is connected on the mouth spray of compressor；The other end of No. two sub- pipelines of hydrojet is connected to
On the air entry of compressor, throttle capillary tube is equipped on No. two sub- pipelines of hydrojet.
2. a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit according to claim 1,
It is characterized in that, hydrojet solenoid valve is additionally provided on No. two sub- pipelines of hydrojet.
3. a kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit according to claim 1,
It is characterized in that, hydrojet main line is linked into refrigeration and heat pump unit by No.1 three-way pipe between condenser and throttle expansion valve
Pipeline on, the other end passes through No. two three-way pipes and the sub- pipeline of No.1 hydrojet, No. two sub- piping connections of hydrojet.
4. according to any one of claims 1 to 3 a kind of for reducing refrigeration and compressor exhaust temperature in heat pump unit
Device, which is characterized in that between the pipeline between condenser and throttle expansion valve and hydrojet main line be equipped with economizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172288.4U CN207831739U (en) | 2018-01-31 | 2018-01-31 | A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172288.4U CN207831739U (en) | 2018-01-31 | 2018-01-31 | A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207831739U true CN207831739U (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820172288.4U Active CN207831739U (en) | 2018-01-31 | 2018-01-31 | A kind of device for reducing refrigeration and compressor exhaust temperature in heat pump unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021008331A1 (en) * | 2019-07-15 | 2021-01-21 | 青岛海尔空调电子有限公司 | Heat pump unit |
| CN113405245A (en) * | 2021-06-09 | 2021-09-17 | 海信（山东）空调有限公司 | Method for controlling air conditioner, storage medium and air conditioner |
-
2018
- 2018-01-31 CN CN201820172288.4U patent/CN207831739U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021008331A1 (en) * | 2019-07-15 | 2021-01-21 | 青岛海尔空调电子有限公司 | Heat pump unit |
| CN113405245A (en) * | 2021-06-09 | 2021-09-17 | 海信（山东）空调有限公司 | Method for controlling air conditioner, storage medium and air conditioner |
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