CN109798689A - A kind of heat pump system capacity regulation method - Google Patents
A kind of heat pump system capacity regulation method Download PDFInfo
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- CN109798689A CN109798689A CN201910154733.3A CN201910154733A CN109798689A CN 109798689 A CN109798689 A CN 109798689A CN 201910154733 A CN201910154733 A CN 201910154733A CN 109798689 A CN109798689 A CN 109798689A
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Abstract
The invention belongs to technical field of heat pumps, specifically a kind of heat pump system capacity regulation method, device for storing liquid is set in heat pump system, one end of device for storing liquid passes through the outlet of the first pipeline connection compressor, the other end passes through the medium circulation pipeline between the second pipeline connection condenser and throttling set, first pipeline is equipped with valve, include the following steps: in the case of heat pump system is run, detect condenser inflow temperature, condenser return water temperature, condensation temperature, condensing pressure, compressor exhaust temperature, the compressor air-discharging degree of superheat, one or more data in compressor current；According to any one or more data, the switch state or aperture state of the valve are adjusted, to participate in the coolant quantity of circulation in adjusting heat pump system, and then realizes the adjusting to heat pump system capacity.
Description
Technical field
The invention belongs to technical field of heat pumps, specifically a kind of heat pump system capacity regulation method.
Background technique
Currently, capacity (the refrigerating capacity and heating capacity) variation of heat pump system uses always frequency-changeable compressor and electric expansion valve
In conjunction with mode be adjusted, but structure is complicated for heat pump system involved in this regulative mode, and cost is high, electrical piano power loss
Greatly, it is unfavorable for minimizing, and adjustable range is smaller, regulating power is limited.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of heat pump system capacity regulation method,
Can by participated in active adjusting heat pump system circulation coolant quantity, thus capacity (refrigerating capacity and the system of adjusting heat pump system
Heat), and it is easy to adjust.
In order to solve the above technical problems, heat pump system capacity regulation method of the present invention the technical solution adopted is that:
A kind of heat pump system capacity regulation method, is arranged device for storing liquid in heat pump system, and one end of device for storing liquid passes through
The outlet of first pipeline connection compressor, the other end pass through the refrigerant circulation between the second pipeline connection condenser and throttling set
Pipeline, the first pipeline are equipped with valve, and the heat pump system capacity regulation method includes the following steps:
Step 1: in the case of heat pump system operation, detection condenser inflow temperature, condenser return water temperature, condensation
Temperature, condensing pressure, compressor exhaust temperature, the compressor air-discharging degree of superheat, one or more data in compressor current；
Step 2: according to any one or more data, adjusting the switch state or aperture state of the valve,
To participate in the coolant quantity of circulation in adjusting heat pump system, and then realize the adjusting to heat pump system capacity.
It is preferred that the step 2 includes following manner:
(1) it as condenser supply water temperature≤T1, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2
Second；As condenser supply water temperature >=T2, then the valve is closed.
It is preferred that the step 2 further includes following manner:
(2) it as condenser return water temperature≤T3, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2
Second；As condenser return water temperature >=T4, then the valve is closed；
(3) it as condenser supply water temperature≤T1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As condenser supply water temperature >=T2, then the valve is closed；
(4) it as condenser return water temperature≤T3, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As condenser return water temperature >=T4, then the valve is closed；
(5) it as condensation temperature≤T5, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening extremely
X2 continues S4 seconds；As condensation temperature >=T6, then the valve is closed；
(6) it as condensing pressure≤P1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening extremely
X2 continues S4 seconds；As condensing pressure >=P2, then the valve is closed；
(7) it as compressor exhaust temperature≤T7, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As compressor exhaust temperature >=T8, then the valve is closed；
(8) it as the compressor air-discharging degree of superheat≤D1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Door aperture continues S4 seconds to X2；As the compressor air-discharging degree of superheat >=D2, then the valve is closed；
(9) it as compressor current≤I1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening
Continue S4 seconds to X2；As the compressor air-discharging degree of superheat >=I2, then the valve is closed；
Mode (1)-(9) can work independently or any two or more work in combination.
It is preferred that the T1 is preferably 46 DEG C, the T2 is preferably 50 DEG C；The T3 is preferably 42 DEG C, and the T4 is preferably
45℃；The S1 is preferably 60 seconds, and the S2 is preferably 30 minutes.
It is preferred that the range of the X1 is 0 < X1≤100%, the range of the X2 is 0≤X2 < 100%.
It is preferred that the X1 is preferably 90%, the X2 is preferably 10%, and the S3 is preferably 90 seconds, and the S4 is preferably
60 minutes.
It is preferred that the T5 is preferably 51 DEG C, and the T6 is preferably 56 DEG C, and the P1 is preferably when refrigerant is R410a
31.3bar, the P2 are preferably 35bar；When refrigerant is R22, the T5 is preferably 51 DEG C, and the T6 is preferably 56 DEG C, institute
Stating P1 is preferably 19.9bar, and the P2 is preferably 22.7bar；When refrigerant is R134a, the T5 is preferably 57 DEG C, the T6
Preferably 63 DEG C, the P1 is preferably 15.7bar, and the P2 is preferably 18bar.
It is preferred that the T7 is preferably 95 DEG C, the T8 is preferably 105 DEG C.
It is preferred that the D1 is preferably 50 DEG C, the D2 is preferably 60 DEG C.
It is preferred that closing the valve after heat pump system is converted to refrigeration mode by heating mode；It is converted in refrigeration mode
After heating mode, the valve is first opened to certain aperture or standard-sized sheet, after continuing for some time, in the manner described (1)-
(9) it works.
It is preferred that the heat pump system closes the valve at the stage of defrosting, or the valve is first opened to centainly opening
After degree continues for some time, the valve is closed.
When the valve is closed, refrigerant extra in medium circulation pipeline slowly can be back to device for storing liquid by the second pipeline
In, and mostly liquid refrigerants；When the valve is open, the high pressure-temperature gaseous coolant of the outlet discharge of compressor passes through the
One pipeline enters device for storing liquid, to squeezing the liquid refrigerants in device for storing liquid into medium circulation pipeline.Pass through regulating valve
The switch state or aperture state of door, it will be able to actively adjust the coolant quantity in medium circulation pipeline, can actively adjust
The coolant quantity of circulation is participated in heat pump system, thus the capacity of adjusting heat pump system, and structure is simple, and it is easy to adjust.
It is described further below with reference to effect of the attached drawing to design of the invention, specific structure and generation, with abundant
Ground understands the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of heat pump system in embodiment 1.
Wherein: compressor 1, four-way valve 2, condenser 3, throttling set 4, evaporator 5, device for storing liquid 6, the first pipeline 7, the
Two pipelines 8, valve 9.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that say that the specific embodiment of description is used only for explaining the present invention herein, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of heat pump system, including be sequentially communicated by medium circulation pipeline compressor 1, four-way valve 2,
Condenser 3, throttling set 4 and evaporator 5 further include device for storing liquid 6, and one end of the device for storing liquid 6 is connected by the first pipeline 7
The outlet of logical compressor 1, the other end are connected to the medium circulation pipeline between condenser 3 and throttling set 4 by the second pipeline 8,
First pipeline 7 is equipped with valve 9, and the valve 9 is the adjustable valve of aperture or motor-driven valve.
A kind of capacity regulation method of above-mentioned heat pump system, including the following steps:
Step 1: in the case of heat pump system operation, detection condenser inflow temperature, condenser return water temperature, condensation
Temperature, condensing pressure, compressor exhaust temperature, the compressor air-discharging degree of superheat, one or more data in compressor current；
Step 2: according to any one or more data, adjusting the switch state or aperture state of the valve,
To participate in the coolant quantity of circulation in adjusting heat pump system, and then realize the adjusting to heat pump system capacity.
The step 2 includes following manner:
(1) it as condenser supply water temperature≤T1, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2
Second；As condenser supply water temperature >=T2, then the valve is closed；
(2) it as condenser return water temperature≤T3, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2
Second；As condenser return water temperature >=T4, then the valve is closed；
(3) it as condenser supply water temperature≤T1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As condenser supply water temperature >=T2, then the valve is closed；
(4) it as condenser return water temperature≤T3, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As condenser return water temperature >=T4, then the valve is closed；
(5) it as condensation temperature≤T5, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening extremely
X2 continues S4 seconds；As condensation temperature >=T6, then the valve is closed；
(6) it as condensing pressure≤P1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening extremely
X2 continues S4 seconds；As condensing pressure >=P2, then the valve is closed；
(7) it as compressor exhaust temperature≤T7, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Aperture continues S4 seconds to X2；As compressor exhaust temperature >=T8, then the valve is closed；
(8) it as the compressor air-discharging degree of superheat≤D1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve
Door aperture continues S4 seconds to X2；As the compressor air-discharging degree of superheat >=D2, then the valve is closed；
(9) it as compressor current≤I1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening
Continue S4 seconds to X2；As the compressor air-discharging degree of superheat >=I2, then the valve is closed；
Mode (1)-(9) can work independently or any two or more work in combination, preferred embodiment (1).
The T1 is preferably 46 DEG C, and the T2 is preferably 50 DEG C；The T3 is preferably 42 DEG C, and the T4 is preferably 45 DEG C；
The S1 is preferably 60 seconds, and the S2 is preferably 30 minutes.
The range of the X1 is 0 < X1≤100%, and the range of the X2 is 0≤X2 < 100%.
The X1 is preferably 90%, and the X2 is preferably 10%, and the S3 is preferably 90 seconds, and the S4 is preferably 60 points
Clock.
When refrigerant is R410a, the T5 is preferably 51 DEG C, and the T6 is preferably 56 DEG C, and the P1 is preferably
31.3bar, the P2 are preferably 35bar；When refrigerant is R22, the T5 is preferably 51 DEG C, and the T6 is preferably 56 DEG C, institute
Stating P1 is preferably 19.9bar, and the P2 is preferably 22.7bar；When refrigerant is R134a, the T5 is preferably 57 DEG C, the T6
Preferably 63 DEG C, the P1 is preferably 15.7bar, and the P2 is preferably 18bar.
The T7 is preferably 95 DEG C, and the T8 is preferably 105 DEG C.
The D1 is preferably 50 DEG C, and the D2 is preferably 60 DEG C.
After heat pump system is converted to refrigeration mode by heating mode, the valve is closed；System is converted in refrigeration mode
After heat pattern, the valve is first opened to certain aperture or standard-sized sheet, after continuing for some time, (1)-(9) in the manner described
Work.
The heat pump system closes the valve at the stage of defrosting, or first opens the valve to certain aperture and hold
After continuous a period of time, the valve is closed.
When valve 9 is closed, extra refrigerant slowly can be back to liquid storage dress by the second pipeline 8 in medium circulation pipeline
It sets in 6, and mostly liquid refrigerants；When valve 9 is opened, the high pressure-temperature gaseous coolant of the outlet discharge of compressor 1
Enter device for storing liquid 6 by the first pipeline 7, to squeezing the liquid refrigerants in device for storing liquid 6 into medium circulation pipeline.It is logical
Overregulate the switch state or aperture state of valve 9, it will be able to the coolant quantity in medium circulation pipeline is actively adjusted, it can
The coolant quantity of circulation is participated in active adjusting heat pump system, thus the capacity (heating capacity and refrigerating capacity) of adjusting heat pump system, and
And structure is simple, it is easy to adjust.
Presently preferred embodiments of the present invention is given in attached drawing.But the invention can be realized in many different forms,
It is not limited to this specification described embodiment.On the contrary, purpose of providing these embodiments is makes to disclosure of the invention
The understanding of content is more thorough and comprehensive.
Claims (10)
1. a kind of heat pump system capacity regulation method, device for storing liquid is set in heat pump system, one end of device for storing liquid passes through the
The outlet of one pipeline connection compressor, the other end pass through the refrigerant circulation pipe between the second pipeline connection condenser and throttling set
Road, the first pipeline are equipped with valve, which is characterized in that the heat pump system capacity regulation method includes the following steps:
Step 1: heat pump system operation in the case of, detection condenser inflow temperature, condenser return water temperature, condensation temperature,
Condensing pressure, compressor exhaust temperature, the compressor air-discharging degree of superheat, one or more data in compressor current；
Step 2: according to any one or more data, adjusting the switch state or aperture state of the valve, thus
The coolant quantity of circulation is participated in adjusting heat pump system, and then realizes the adjusting to heat pump system capacity.
2. heat pump system capacity regulation method according to claim 1, which is characterized in that the step 2 includes with lower section
Formula:
(1) it as condenser supply water temperature≤T1, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2 seconds；
As condenser supply water temperature >=T2, then the valve is closed.
3. heat pump system capacity regulation method according to claim 2, which is characterized in that the step 2 further includes with lower section
Formula:
(2) it as condenser return water temperature≤T3, then opens the valve and continues S1 seconds, be then shut off the valve and continue S2 seconds；
As condenser return water temperature >=T4, then the valve is closed；
(3) it as condenser supply water temperature≤T1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening
Continue S4 seconds to X2；As condenser supply water temperature >=T2, then the valve is closed；
(4) it as condenser return water temperature≤T3, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening
Continue S4 seconds to X2；As condenser return water temperature >=T4, then the valve is closed；
(5) it as condensation temperature≤T5, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening and hold to X2
It is S4 seconds continuous；As condensation temperature >=T6, then the valve is closed；
(6) it as condensing pressure≤P1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening and hold to X2
It is S4 seconds continuous；As condensing pressure >=P2, then the valve is closed；
(7) it as compressor exhaust temperature≤T7, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening
Continue S4 seconds to X2；As compressor exhaust temperature >=T8, then the valve is closed；
(8) it as the compressor air-discharging degree of superheat≤D1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve and open
It spends to X2 and continues S4 seconds；As the compressor air-discharging degree of superheat >=D2, then the valve is closed；
(9) it as compressor current≤I1, then opens the valve opening X1 and continues S3 seconds, then adjust the valve opening to X2
Continue S4 seconds；As the compressor air-discharging degree of superheat >=I2, then the valve is closed；
Mode (1)-(9) can work independently or any two or more work in combination.
4. heat pump system capacity regulation method according to claim 3, which is characterized in that the T1 is preferably 46 DEG C, described
T2 is preferably 50 DEG C；The T3 is preferably 42 DEG C, and the T4 is preferably 45 DEG C；The S1 is preferably 60 seconds, and the S2 is preferably
30 minutes.
5. heat pump system capacity regulation method according to claim 3, which is characterized in that the range of the X1 be 0 < X1≤
The range of 100%, the X2 are 0≤X2 < 100%.
6. heat pump system capacity regulation method according to claim 5, which is characterized in that the X1 is preferably 90%, described
X2 is preferably 10%, and the S3 is preferably 90 seconds, and the S4 is preferably 60 minutes.
7. heat pump system capacity regulation method according to claim 3, which is characterized in that when refrigerant is R410a, the T5
Preferably 51 DEG C, the T6 is preferably 56 DEG C, and the P1 is preferably 31.3bar, and the P2 is preferably 35bar；When refrigerant is R22
When, the T5 is preferably 51 DEG C, and the T6 is preferably 56 DEG C, and the P1 is preferably 19.9bar, and the P2 is preferably 22.7bar；
When refrigerant is R134a, the T5 is preferably 57 DEG C, and the T6 is preferably 63 DEG C, and the P1 is preferably 15.7bar, the P2
Preferably 18bar.
8. heat pump system capacity regulation method according to claim 3, which is characterized in that the T7 is preferably 95 DEG C, described
T8 is preferably 105 DEG C, and the D1 is preferably 50 DEG C, and the D2 is preferably 60 DEG C.
9. heat pump system capacity regulation method according to claim 3, which is characterized in that turned in heat pump system by heating mode
After being changed to refrigeration mode, the valve is closed；After refrigeration mode is converted to heating mode, the valve is first opened to centainly opening
Degree or standard-sized sheet, after continuing for some time, (1)-(9) work in the manner described.
10. heat pump system capacity regulation method according to claim 3, which is characterized in that the heat pump system is in defrosting rank
Duan Shi closes the valve, or first opens after the valve continues for some time to certain aperture, closes the valve.
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Cited By (4)
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| CN111486611A (en) * | 2020-04-24 | 2020-08-04 | 深圳麦克维尔空调有限公司 | Air conditioning system and control method thereof |
| CN112178978A (en) * | 2020-10-15 | 2021-01-05 | 广东纽恩泰新能源科技发展有限公司 | Protection control method for overhigh exhaust temperature of variable frequency heat pump |
| CN112833597A (en) * | 2021-01-21 | 2021-05-25 | 广东积微科技有限公司 | Exhaust side parameter-based refrigerant quantity detection control method for multi-split air conditioning system |
| CN113639485A (en) * | 2021-07-23 | 2021-11-12 | 青岛海尔空调电子有限公司 | Method and device for adjusting exhaust superheat degree of heat pump equipment and heat pump equipment |
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| CN112833597A (en) * | 2021-01-21 | 2021-05-25 | 广东积微科技有限公司 | Exhaust side parameter-based refrigerant quantity detection control method for multi-split air conditioning system |
| CN113639485A (en) * | 2021-07-23 | 2021-11-12 | 青岛海尔空调电子有限公司 | Method and device for adjusting exhaust superheat degree of heat pump equipment and heat pump equipment |
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Application publication date: 20190524 |