CN209569924U - Air friction drag and its liquid-spraying control device - Google Patents
Air friction drag and its liquid-spraying control device Download PDFInfo
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- CN209569924U CN209569924U CN201920260386.8U CN201920260386U CN209569924U CN 209569924 U CN209569924 U CN 209569924U CN 201920260386 U CN201920260386 U CN 201920260386U CN 209569924 U CN209569924 U CN 209569924U
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Abstract
The utility model provides a kind of air friction drag and its liquid-spraying control device, belongs to air friction drag technical field.It, which solves the prior art, cannot be guaranteed the problems such as compressor sucks enough refrigerants.This air friction drag and its liquid-spraying control device, one end with connect condenser and be connected to the refrigerant general pipeline of evaporator, the other end is connected to gas-liquid separator inner cavity, the present apparatus includes the sparge pipe for conveying liquid refrigerants, refrigerant general pipeline between one end and condenser and evaporator of sparge pipe is connected to, the other end is direct and independent communication is in gas-liquid separator inner cavity, it further include first throttle part, and the refrigerant control valve between the one end and first throttle part on the sparge pipe etc. on sparge pipe.The advantages of this air friction drag and its liquid-spraying control device, is: can effectively control compressor sucking coolant quantity, cooling compressor internal temperature reduces the purpose of compressor exhaust temperature.
Description
Technical field
The utility model belongs to air friction drag technical field, more particularly, to a kind of control compressor refrigerant
The liquid-spraying control device of soakage and delivery temperature and air friction drag equipped with this device.
Background technique
In the case where national energy conservation and emission reduction and " coal changes electricity " policy push, air friction drag industry is sent out rapidly
Exhibition.Air-source hot water is used not only in domestic hot-water, heating, and many high water temperature industries also gradually use air-source hot water, for example slaughter
It kills.Air-source hot water effluent temperature is high, and compressor exhaust temperature is high, under some high load capacities and low-pressure ratio operating condition, compressor with
The increase of load or the deficiency of refrigerant soakage, can causing to cannot get inside compressor enough coolings, delivery temperature occur super
The phenomenon that height, motor internal or bearing are burnt out.
The common liquid-spraying control device of industry is that mouth spray is arranged before unit gas-liquid separator to pipeline (see Fig. 1 at present
And Fig. 2) or gas-liquid separator after pipeline (see Fig. 3 and Fig. 4), as depicted in figs. 1 and 2, when will be located in dotted line frame marked as
11 mouth spray setting in the unit marked as 6 gas-liquid separator preceding pipeline (i.e. on gas-liquid separator marked as
The refrigerant general pipeline marked as 1 of 19 air inlet connection) on when, can exist from the sparge pipe marked as 7a when operation and pass through the spray
The hydrojet refrigerant that liquid mouth sprays into the liquid in the preceding pipeline of the gas-liquid separator on unit, which gasifies, to cool down, and enters gas-liquid from preceding pipeline
The suction temperature of the gaseous coolant of air inlet on separator reduces, and pressure does not change simultaneously, forms suction superheat and becomes
Small illusion, expansion valve turn aperture down according to the degree of superheat, further result in inspiratory capacity and reduce delivery temperature raising, hydrojet is not achieved
The purpose of cooling is more likely to phenomena such as low pressure alarming occur, causes the system suction degree of superheat chaotic, as shown in Figure 3 and Figure 4, when
The rear pipeline marked as 6 gas-liquid separator in the unit will be set (i.e. marked as 11 mouth spray in dotted line frame
The refrigerant general pipeline marked as 1 being connect with the gas outlet on gas-liquid separator) on and be located at compressor air suction mouth before when, operation
When can have liquid in the rear pipeline for spraying into the gas-liquid separator on unit by the mouth spray marked as the sparge pipe of 7a
Hydrojet refrigerant cannot be gasified totally into the compressor marked as 2, cause compressor liquid hammer or oil starvation, compressor is caused when serious
The phenomenon that motor is burnt or compact disk is stuck.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of guarantee compressor can suck under various operating conditions
Enough refrigerants, to prevent compressor internal temperature is excessively high from burning motor or bearing, and do not influence the unit degree of superheat control and
It reduces compressor and the air friction drag liquid-spraying control device of the probability of liquid hammer occurs.
Another purpose of the utility model be in view of the above-mentioned problems, provide it is a kind of guarantee unit in compressor various
Enough refrigerants are sucked under operating condition, improve the air friction drag of the service life of compressor.
In order to achieve the above objectives, the utility model uses following technical proposal: the air source heat pump heat of the utility model
Water dispenser group liquid-spraying control device, one end with connect condenser and be connected to the refrigerant general pipeline of evaporator, the other end is connected to gas-liquid
Interior separator cavity, it is characterised in that: the present apparatus includes the sparge pipe for conveying liquid refrigerants, one end of sparge pipe and condenser
Refrigerant general pipeline between evaporator is connected to, the other end is direct and independent communication is in gas-liquid separator inner cavity, further includes being set to spray
First throttle part in liquid pipe, and the refrigerant control valve between the one end and first throttle part on the sparge pipe,
And the mouth spray independently of air inlet on gas-liquid separator, the other end of sparge pipe are connected to the mouth spray.This
Technical solution is directly entered gas-liquid separator by sparge pipe sparge pipe by opening refrigerant control valve, liquid refrigerants according to demand
On mouth spray, hence into the big cavity inside gas-liquid separator, and in an existing technology as shown in Fig. 1 to 2
In scheme, due to being that the liquid refrigerants of high temperature, high pressure is mixed with the gaseous coolant of low temperature, low pressure directly in refrigerant general pipeline
, it will affect pressure of inspiration(Pi) and temperature, simultaneously because the volume space in refrigerant general pipeline is limited, the liquid being sprayed onto refrigerant general pipeline
It can gasify quickly, cool down, and pressure does not change simultaneously, forms the illusion that suction superheat becomes smaller, and control exhaust is not achieved
The purpose of temperature, and the technical program is gasified in the big cavity being put into liquid refrigerants inside gas-liquid separator, it can
It is final to realize control pressure to effectively prevent influencing the illusion that the degree of superheat is less than normal, malfunctions so as to cause expansion valve because of liquid spraying gasifying
The purpose of contracting machine delivery temperature, and since gas-liquid separator internal capacity is very big, liquid refrigerants can be completely in gas-liquid separator
Gasification, causes compressor to run with liquid without what is occurred in another existing technical solution as shown in Figs. 3-4
Situation, so that this programme tool can effectively control compressor sucking coolant quantity, cooling compressor internal temperature reduces compressor row
The purpose of temperature degree.
In above-mentioned air friction drag liquid-spraying control device, first throttle part is in capillary and expansion valve
Any one.
In above-mentioned air friction drag liquid-spraying control device, mouth spray is located at the upper half of gas-liquid separator
Portion.To guarantee that the air intake duct inside gas-liquid separator is not easy to siphon away the liquid coolant that spirt is gone, to reduce to from gas-liquid separation
The influence of the pressure and temperature for the gaseous coolant that air inlet on device enters.
Above-mentioned air friction drag is as described below: this air friction drag, including by refrigerant general pipeline
It is sequentially connected compressor, first heat exchanger, the second throttling element, second heat exchanger and gas-liquid separator and being recycled back to for forming
Road, it is characterised in that: be connected to the refrigerant general pipeline between first heat exchanger and second heat exchanger and between gas-liquid separator
Equipped with any air friction drag liquid-spraying control device of such as claims 1 to 3.Air friction drag hydrojet control
The setting of device processed realizes that the coolant quantity of effective control compressor sucking, cooling compressor internal temperature reduce compressor row
The purpose of temperature degree.
In above-mentioned air friction drag, for the unit in the state of heating, first heat exchanger is condenser,
Second heat exchanger is evaporator, and one end on sparge pipe in air friction drag liquid-spraying control device is located at connection
On refrigerant general pipeline between condenser and the second throttling element.
In above-mentioned air friction drag, the unit further includes a reversal valve, four ends on reversal valve
Mouthful on the outlet side on compressor, one end in first heat exchanger, one end and gas-liquid separator in second heat exchanger
Air inlet be connected to one by one.The setting of reversal valve makes the unit while having the function of heating and defrosting.
In above-mentioned air friction drag, for the unit in the state of heating, first heat exchanger is condenser,
Second heat exchanger is evaporator, and one end on sparge pipe in air friction drag liquid-spraying control device is located at connection
On refrigerant general pipeline between condenser and the second throttling element；For the unit in defrosting state, first heat exchanger is evaporator,
Second heat exchanger is condenser, and one end on sparge pipe in air friction drag liquid-spraying control device is located at connection
On refrigerant general pipeline between the second throttling element and evaporator.
In above-mentioned air friction drag, the second throttling element is expansion valve.
In above-mentioned air friction drag, on the refrigerant general pipeline of connection first heat exchanger and the second throttling element
Equipped with filter, one end on sparge pipe in air friction drag liquid-spraying control device, which is located at, is connected to the second throttling
On refrigerant general pipeline between part and filter.The setting of filter improves the quality of refrigerant, improves guarantee for safe operation.
Compared with prior art, the advantages of this air friction drag liquid-spraying control device, is: beating according to demand
Open refrigerant control valve, liquid refrigerants is directly entered gas-liquid separator by the mouth spray on gas-liquid separator, in gas-liquid separator
Portion's volume is very big, and liquid refrigerants is gasified totally in gas-liquid separator, and not only there is a phenomenon where compressor liquid hammers for reduction, but also drop
Low suction temperature increases compressor refrigerant soakage, while not influencing suction superheat, so that finally realizing reduces compressor
The purpose of delivery temperature.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 provides heating working principle when mouth spray to be arranged in pipeline before unit gas-liquid separator in the prior art
Figure.
Fig. 2 provides defrosting working principle when mouth spray to be arranged in pipeline before unit gas-liquid separator in the prior art
Figure.
Fig. 3 provides heating working principle when mouth spray to be arranged in pipeline after unit gas-liquid separator in the prior art
Figure.
Fig. 4 provides defrosting working principle when mouth spray to be arranged in pipeline after unit gas-liquid separator in the prior art
Figure.
Fig. 5 provides the heating working principle diagram of the utility model embodiment.
Fig. 6 provides the defrosting working principle diagram of the utility model embodiment.
In figure, refrigerant general pipeline 1, compressor 2, first heat exchanger 3, second heat exchanger 4, the second throttling element 5, gas-liquid point
From device 6, sparge pipe 7a, first throttle part 7b, refrigerant control valve 7c, reversal valve 8, filter 9, liquid storage device 10, mouth spray 11, inhale
Gas temperature sensor 12, exhaust gas temperature sensor 13, condensation temperature sensor 14, fin temperature sensor 15, environment temperature pass
Sensor 16, low tension switch 17, high-voltage switch gear 18, air inlet 19.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
As shown in the dotted line frame in Fig. 5 to 6, this air friction drag liquid-spraying control device, one end and company
Connect that condenser is connected to the refrigerant general pipeline 1 of evaporator, the other end is connected to 6 inner cavity of gas-liquid separator, it is characterised in that: the present apparatus
Refrigerant general pipeline 1 including the sparge pipe 7a for conveying liquid refrigerants, between one end and condenser and evaporator of sparge pipe 7a
Connection, the other end are directly and independent communication is in 6 inner cavity of gas-liquid separator, further include the first throttle part on sparge pipe 7a
7b, and the refrigerant control valve 7c between the one end and first throttle part 7b on sparge pipe 7a, refrigerant here
Control valve 7c is solenoid valve, the solenoid valve of optional conventional refrigerant system, model need to according to the model of heat pump water-heating machine into
Row selection, and the mouth spray 11 independently of air inlet 19 on gas-liquid separator 6, the other end of sparge pipe 7a with should
Mouth spray 11 is connected to.The technical program passes through sparge pipe 7a hydrojet by opening refrigerant control valve 7c, liquid refrigerants according to demand
Pipe 7a is directly entered the mouth spray 11 on gas-liquid separator 6, hence into the big cavity inside gas-liquid separator 6, and such as
In an existing technical solution shown in Fig. 1 to 2, due to being directly in refrigerant general pipeline 1 high temperature, the liquid refrigerants of high pressure
It is mixed with the gaseous coolant of low temperature, low pressure, will affect pressure of inspiration(Pi) and temperature, simultaneously because the volume in refrigerant general pipeline 1 is empty
Between it is limited, the liquid being sprayed onto refrigerant general pipeline 1 can gasify quickly, cool down, and pressure does not change simultaneously, formed suction superheat
The illusion to become smaller is spent, the purpose of control delivery temperature is not achieved, and the technical program is that liquid refrigerants is put into gas-liquid separator 6
Gasify in internal big cavity, can be effectively prevented because liquid spraying gasifying influence the degree of superheat it is less than normal, so as to cause expansion valve
The illusion of malfunction, the final purpose for realizing control 2 delivery temperature of compressor, and since 6 internal capacity of gas-liquid separator is very big,
Liquid refrigerants can be gasified totally in gas-liquid separator 6, without another existing technical side as shown in Figs. 3-4
What is occurred in case causes the case where compressor 2 is with liquid operation, so that this programme tool, which can effectively control compressor 2, sucks refrigerant
Amount, cooling 2 internal temperature of compressor, reduces the purpose of compressor exhaust temperature.
Specifically, first throttle part 7b is any one in capillary and expansion valve, it is preferable that capillary is selected,
Model need to be selected according to the model of heat pump water-heating machine.
Further, mouth spray 11 is located at the upper half of gas-liquid separator 6.To guarantee to spray into 6 the inside of gas-liquid separator
Liquid refrigerants can be gasified totally, it is often more important that guarantee that the liquid refrigerants for spraying into 6 the inside of gas-liquid separator will not be by compressor 2
Compressor 2 is sucked from the exhaust outlet of gas-liquid separator 6, to avoid occurring compressing existing for prior art side as shown in Figs. 3-4
The case where 2 liquid hammer of machine.
As shown in FIG. 5 and 6, the specific embodiment of this air friction drag includes but is not limited to following implementation
Example.
Embodiment 1
This air friction drag, including compressor 2, first heat exchanger 3, are sequentially connected by refrigerant general pipeline 1
The circulation loop of two throttling elements 5, second heat exchanger 4 and gas-liquid separator 6 and composition, it is characterised in that: be connected to the first heat
It is equipped between refrigerant general pipeline 1 between exchanger 3 and second heat exchanger 4 and gas-liquid separator 6 as claims 1 to 3 is any
Air friction drag liquid-spraying control device.The setting of air friction drag liquid-spraying control device is realized effective
The coolant quantity that compressor 2 sucks is controlled, cooling 2 internal temperature of compressor reduces the purpose of 2 delivery temperature of compressor.
Specifically, for the unit in the state of heating, first heat exchanger 3 is condenser, and second heat exchanger 4 is evaporation
Device, one end on sparge pipe 7a in air friction drag liquid-spraying control device, which is located at, is connected to condenser and the second section
It flows on the refrigerant general pipeline 1 between part 5.
Further, the second throttling element 5 is expansion valve, preferably, connection first heat exchanger 3 and the second throttling element 5
Refrigerant general pipeline 1 be equipped with filter 9, one end on sparge pipe 7a in air friction drag liquid-spraying control device is set
On the refrigerant general pipeline 1 being connected between the second throttling element 5 and filter 9.The setting of filter 9 improves the quality of refrigerant,
Guarantee is improved for safe operation.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that: this air friction drag further includes one
Reversal valve 8, the outlet side on four ports and compressor 2 on reversal valve 8, one end in first heat exchanger 3, the second heat are handed over
One end on parallel operation 4 is connected to one by one with the air inlet 19 on gas-liquid separator 6.The setting of reversal valve 8 makes the unit while having
The function of heating and defrosting, for the unit in the state of heating, first heat exchanger 3 is condenser, and second heat exchanger 4 is evaporation
Device, one end on sparge pipe 7a in air friction drag liquid-spraying control device, which is located at, is connected to condenser and the second section
It flows on the refrigerant general pipeline 1 between part 5, for the unit in defrosting state, first heat exchanger 3 is evaporator, second heat exchanger 4
For condenser, one end on sparge pipe 7a in air friction drag liquid-spraying control device, which is located at, is connected to the second throttling
On refrigerant general pipeline 1 between part 5 and evaporator.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although refrigerant general pipeline 1, compressor 2, first heat exchanger 3, second heat exchanger 4, is used more herein
Two throttling elements 5, gas-liquid separator 6, sparge pipe 7a, first throttle part 7b, refrigerant control valve 7c, reversal valve 8, filter 9, liquid storage
Device 10, mouth spray 11, suction temperature sensor 12, exhaust gas temperature sensor 13, condensation temperature sensor 14, fin temperature sensing
The terms such as device 15, environment temperature sensor 16, low tension switch 17, high-voltage switch gear 18, air inlet 19, but be not precluded using other
A possibility that term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；Them
It is contrary to the spirit of the present invention for being construed to any additional limitation all.
Claims (9)
1. a kind of air friction drag liquid-spraying control device, one end and the refrigerant general pipeline for connecting condenser and evaporator
(1) connection, the other end are connected to gas-liquid separator (6) inner cavity, it is characterised in that: the present apparatus includes for conveying liquid refrigerants
Sparge pipe (7a), the refrigerant general pipeline (1) between one end and condenser and evaporator of the sparge pipe (7a) is connected to, the other end
Directly and independent communication is in gas-liquid separator (6) inner cavity, further includes the first throttle part (7b) on sparge pipe (7a), and set
In the refrigerant control valve (7c) between the one end and first throttle part (7b) on the sparge pipe (7a), and it is set to gas
The mouth spray (11) independently of air inlet (19) on liquid/gas separator (6), the other end and the hydrojet of the sparge pipe (7a)
Mouth (11) connection.
2. air friction drag liquid-spraying control device according to claim 1, which is characterized in that described first
Throttling element (7b) is any one in capillary and expansion valve.
3. air friction drag liquid-spraying control device according to any one of claims 1 to 2, which is characterized in that institute
The mouth spray (11) stated is located at the upper half of gas-liquid separator (6).
4. a kind of air friction drag, including compressor (2), first heat exchanger are sequentially connected by refrigerant general pipeline (1)
(3), the second throttling element (5), second heat exchanger (4) and gas-liquid separator (6) and form circulation loop, it is characterised in that:
The refrigerant general pipeline (1) being connected between the first heat exchanger (3) and second heat exchanger (4) and gas-liquid separator (6)
Between be equipped with air friction drag liquid-spraying control device as described in claims 1 to 3 is any.
5. air friction drag according to claim 4, which is characterized in that the unit is in the state of heating, and
One heat exchanger (3) is condenser, and second heat exchanger (4) is evaporator, air friction drag liquid-spraying control device
In sparge pipe (7a) on one end be located on the refrigerant general pipeline (1) being connected between condenser and the second throttling element (5).
6. air friction drag according to claim 4, which is characterized in that the unit further includes a reversal valve
(8), the outlet side on four ports on the reversal valve (8) and the compressor (2), in first heat exchanger (3)
One end, one end in second heat exchanger (4) is connected to one by one with the air inlet (19) on gas-liquid separator (6).
7. air friction drag according to claim 6, which is characterized in that the unit is in the state of heating, and
One heat exchanger (3) is condenser, and second heat exchanger (4) is evaporator, air friction drag liquid-spraying control device
In sparge pipe (7a) on one end be located on the refrigerant general pipeline (1) being connected between condenser and the second throttling element (5)；The machine
For group in defrosting state, first heat exchanger (3) is evaporator, and second heat exchanger (4) is condenser, air source heat pump hot water
One end on sparge pipe (7a) in unit liquid-spraying control device be located at be connected to it is cold between the second throttling element (5) and evaporator
On matchmaker general pipeline (1).
8. according to any air friction drag of claim 4 to 7, which is characterized in that second throttling
Part (5) is expansion valve.
9. air friction drag according to claim 4, which is characterized in that connect the first heat exchanger
(3) and the refrigerant general pipeline (1) of the second throttling element (5) is equipped with filter (9), air friction drag liquid-spraying control device
In sparge pipe (7a) on one end be located on the refrigerant general pipeline (1) being connected between the second throttling element (5) and filter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920260386.8U CN209569924U (en) | 2019-02-28 | 2019-02-28 | Air friction drag and its liquid-spraying control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920260386.8U CN209569924U (en) | 2019-02-28 | 2019-02-28 | Air friction drag and its liquid-spraying control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023613A (en) * | 2019-11-27 | 2020-04-17 | 合肥通用制冷设备有限公司 | Accurate temperature control refrigerating system |
| CN113530794A (en) * | 2021-08-13 | 2021-10-22 | 合肥天鹅制冷科技有限公司 | High-temperature area compressor overheating control system and control method |
| CN115143612A (en) * | 2021-03-31 | 2022-10-04 | 重庆美的通用制冷设备有限公司 | Control method and control device of heat pump system, heat pump system and air conditioner |
-
2019
- 2019-02-28 CN CN201920260386.8U patent/CN209569924U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023613A (en) * | 2019-11-27 | 2020-04-17 | 合肥通用制冷设备有限公司 | Accurate temperature control refrigerating system |
| CN115143612A (en) * | 2021-03-31 | 2022-10-04 | 重庆美的通用制冷设备有限公司 | Control method and control device of heat pump system, heat pump system and air conditioner |
| CN113530794A (en) * | 2021-08-13 | 2021-10-22 | 合肥天鹅制冷科技有限公司 | High-temperature area compressor overheating control system and control method |
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Address after: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Patentee after: Zhejiang Zhongguang Electric Appliance Group Co.,Ltd. Address before: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Patentee before: ZHEJIANG ZHONGGUANG ELECTRIC APPLIANCES Co.,Ltd. |