CN108036465A - Pressure for air conditioner test adjusts simulator and its operating method - Google Patents
Pressure for air conditioner test adjusts simulator and its operating method Download PDFInfo
- Publication number
- CN108036465A CN108036465A CN201711158548.9A CN201711158548A CN108036465A CN 108036465 A CN108036465 A CN 108036465A CN 201711158548 A CN201711158548 A CN 201711158548A CN 108036465 A CN108036465 A CN 108036465A
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- Prior art keywords
- pressure
- pressure sensor
- simulator
- adjusts
- flow regulator
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- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000011017 operating method Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims description 54
- 239000003507 refrigerant Substances 0.000 claims description 16
- 238000004378 air conditioning Methods 0.000 claims description 9
- 238000013507 mapping Methods 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims description 3
- 238000012356 Product development Methods 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
Abstract
The invention belongs to air conditioner technical field, and in particular to a kind of pressure for air conditioner test adjusts simulator and its operating method.Put into solve the problems, such as existing multi-line system in the high drop of new product development step simulations, Super long tube environment huge, time-consuming and laborious, the pressure of the present invention, which adjusts simulator, includes fluid circuit, first pressure sensor, second pressure sensor and flow regulator, and first pressure sensor, flow regulator and second pressure sensor are sequentially connected in series and are arranged on fluid circuit；When fluid flows in fluid circuit, first pressure sensor detects the first pressure of fluid, second pressure sensor detects the second pressure of fluid, and the aperture of flow regulator is controlled according to the difference between first pressure and second pressure, to simulate the pipeline pressure difference needed for air conditioner test.The present invention dramatically reduces huge input of the multi-line system in the new product development stage, time saving and energy saving, cost-effective.
Description
Technical field
The invention belongs to air conditioner technical field, and in particular to a kind of pressure for air conditioner test adjust simulator and
Its operating method.
Background technology
Multi-line system is commonly called as " one drag more ", be commonly referred to as an outdoor unit by some indoor units of pipe connection and
The coolant circulating system of composition.Multi-line system is often the pipeline in high drop, the environment of Super long tube, this environment
Height and length can cause the pressure loss of refrigerant, and crushing of the refrigerant in cyclic process directly affects the system of air conditioner
Cold/heating effect.Therefore, in the development phase of new product, generally require to test multi-line system according to application environment,
But if the environment of this high drop, Super long tube is simulated by entity device, cost of either installing or workload are all
Need to increase huge input, it is time-consuming and laborious.
Therefore, the present invention proposes a kind of new apparatus and method to solve the above problems.
The content of the invention
It has been the existing multi-line system of solution in the new product development stage to solve the above problem of the prior art
The problem of huge, time-consuming and laborious is put into when simulating high drop, Super long tube environment, the present invention provides a kind of for air conditioner test
Pressure adjusts simulator, and the pressure, which adjusts simulator, includes fluid circuit, first pressure sensor, second pressure sensing
Device and flow regulator, the first pressure sensor, the flow regulator and the second pressure sensor are successively
It is arranged in series on the fluid circuit；When fluid flows in the fluid circuit, the first pressure sensor detection
The first pressure of the fluid, the second pressure sensor detect the second pressure of the fluid, the flow regulator
Aperture controlled according to the difference between the first pressure and the second pressure, to simulate the pipe needed for air conditioner test
Road pressure difference.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the fluid circuit includes liquid line；It is described
First pressure sensor includes the first liquid pipe pressure sensor being arranged on the liquid line, the second pressure sensor
Including the second liquid pipe pressure sensor being arranged on the liquid line, the flow regulator includes being arranged at the liquid
Fluid flow on body pipeline and between the first liquid pipe pressure sensor and the second liquid pipe pressure sensor
Regulating device.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the fluid circuit includes gas piping；It is described
First pressure sensor includes the first pipe pressure sensor being arranged on the gas piping, the second pressure sensor
Including the second pipe pressure sensor being arranged on the gas piping, the flow regulator includes being arranged at the gas
Gas flow on body pipeline and between first pipe pressure sensor and second pipe pressure sensor
Regulating device.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the fluid circuit further includes gas piping；Institute
State first pressure sensor and further include the first pipe pressure sensor being arranged on the gas piping, the second pressure passes
Sensor further includes the second pipe pressure sensor being arranged on the gas piping, and the flow regulator further includes setting
In on the gas piping and between first pipe pressure sensor and second pipe pressure sensor
Gas flow adjusting means.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the liquid flow-conditioning is set including parallel connection
At least two liquid pipe pressure variable expansion valves put.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the gas flow adjusting means are set including parallel connection
At least two tracheal pressure variable expansion valves put.
In the preferred embodiment that above-mentioned pressure adjusts simulator, the liquid pipe pressure variable expansion valve and/or institute
It is electric expansion valve to state tracheal pressure variable expansion valve.
In the preferred embodiment that above-mentioned pressure adjusts simulator, it is more for simulating that the pressure adjusts simulator
Pressure loss value of the online air-conditioning system in high drop, Super long tube environment；The pressure adjusts simulator and is arranged at outdoor
In online pipeline between machine and indoor unit；And/or the pressure adjusts simulator and is arranged at multi-online air-conditioning system
Every indoor unit air inlet/inlet pipe in.
Present invention also offers the operating method that a kind of pressure adjusts simulator, it is upper that the pressure, which adjusts simulator,
The pressure stated adjusts simulator, and the operating method includes：Obtain the first pressure sensor first pressure value and
The second pressure value of the second pressure sensor；Calculate the difference of the first pressure value and the second pressure value；According to
The difference adjusts the aperture of the flow regulator.
In the preferred embodiment of aforesaid operations method, " opening for the flow regulator is adjusted according to the difference
The step of degree ", specifically includes：Desired pressure loss value is obtained according to the default pressure loss table of comparisons；By the difference and institute
Desired pressure loss value is stated to be compared；The aperture of the flow regulator is adjusted according to comparative result；Wherein, it is described pre-
If the pressure loss table of comparisons be multi-online air-conditioning system in refrigerant pressure loss with online caliber, the mapping table of length
In the inventive solutions, simulator is adjusted using pressure to simulate the pressure of refrigerant in multi-line system
Loss, it is not necessary to recycle entity device to simulate high drop, the environment of Super long tube, exist so as to dramatically reduce multi-line system
The huge input in new product development stage, it is time saving and energy saving, it is cost-effective.Also, the pressure of the present invention adjusts simulator structure
Simply, it is cold according to the pressure differential of two pressure sensors, the aperture of combination pressure loss table of comparisons control flow control valve, control
The flow of matchmaker is to reach desired pressure loss value, simple operation.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of existing multi-line system；
Fig. 2 is that the pressure-regulating device of the present invention is applied to the structure diagram in multi-line system test；
Fig. 3 is that the pressure of the present invention adjusts the structure principle chart of simulator；
Fig. 4 is the flow chart that the pressure of the present invention adjusts the operating method of simulator.
Embodiment
To make the embodiment of the present invention purpose, technical scheme and advantage more obvious, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that the embodiment of the description be the present invention part of the embodiment, and
It is not all of embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining the skill of the present invention
Art principle, it is not intended that limit the scope of the invention.
With reference first to Fig. 1, Fig. 1 is the mounting structure schematic diagram of existing multi-line system.As shown in Figure 1, existing multi-connected machine
System is often installed on often installed in high drop, the ring of Super long tube (drop height and piping length are not limited to concrete numerical value)
Border, thus certain pressure loss occurs during refrigerant flows between outdoor unit and indoor unit.Obtained by experiment
Refrigerant pressure loss and online caliber, the relation such as table 1 of length obtained：
| Caliber (mm) | 6.35 | 9.52 | 12.7 | 15.88 | 19.05 | 22.22 | 25.4 | 28.58 |
| The pressure loss (bar/5m) | △P1 | △P2 | △P3 | △P4 | △P5 | △P6 | △P7 | △P8 |
Table 1
For example, it is assumed that：The online length of tube of outdoor unit to indoor units is X meters, and the liquid pipe caliber of online pipe is
15.88mm, the tracheae caliber of online pipe is 25.4mm；According to table 1 can calculate refrigerant outdoor unit and indoor units it
Between pressure loss situation be：Liquid pipe pressure loss value is △ PLiquid=△ P4*X/5；Tracheal pressure penalty values are △ PGas=△ P7*
X/5, unit bar.
Since crushing of the refrigerant in cyclic process can directly affect the refrigerating/heating effect of air conditioner.Therefore, produced newly
The development phase of product, generally requires to test multi-line system according to application environment, but this high drop, Super long tube
If environment is simulated by entity device, time-consuming and laborious.Based on this, the present invention proposes a kind of pressure for air conditioner test
Simulator is adjusted, it includes fluid circuit, first pressure sensor, second pressure sensor and flow regulator；First
Pressure sensor, flow regulator, second pressure sensor are once arranged in series on fluid circuit so that in fluid circuit
Fluid flow successively through first pressure sensor, flow regulator and second pressure sensor.When fluid is in fluid circuit
During flowing, first pressure sensor is used for the first pressure for detecting fluid, and second pressure sensor is used to detect the second of fluid
Pressure, the aperture of flow regulator are controlled according to the difference between first pressure and second pressure, are surveyed to simulate air-conditioning
Pipeline pressure difference needed for examination.
It should be noted that the aperture of flow regulator can by staff according to first pressure and second pressure it
Between difference control the aperture of flow regulator manually, a controller can also be increased, by controller according to first pressure
The aperture of difference automatic control flow regulating device between second pressure.These are without departure from protection scope of the present invention.
In the new product development stage of multi-line system, adjust simulator using the pressure and simulate refrigerant in online pipe
The pressure loss in (high drop, Super long tube environment i.e. in practice).With reference to Fig. 2, the pressure-regulating device that Fig. 2 is the present invention should
Structure diagram in being tested for multi-line system.As shown in Fig. 2, since the pressure of the present invention adjusts the operation of simulator
It is convenient, simple in structure, after the high drop of pressure adjusting simulator simulation multi-line system, Super long tube environment, it is only necessary to
The actual pressure penalty values of refrigerant can be calculated according to the pressure differential between first pressure sensor and second pressure sensor,
Then the mapping relations again in the table of comparisons 1 calculate desired pressure loss value, and stream is adjusted according to desired pressure loss value
The aperture of quantity regulating device, to obtain the pipeline pressure difference needed for air conditioner test.So as to dramatically reduce multi-line system new
The huge input of product development stage, it is time saving and energy saving, it is cost-effective.
The pressure for illustrating the present invention with reference to Fig. 3 adjusts a kind of embodiment of simulator.
Fig. 3 is that the pressure of the present invention adjusts the structure principle chart of simulator.As shown in figure 3, in the present embodiment, pressure
Adjust the fluid circuit of simulator and include liquid line 11, that first pressure sensor includes being arranged on liquid line 11
One liquid pipe pressure sensor 12 (being used to detect the first liquid pressure of liquid refrigerants here), second pressure sensor includes setting
The second liquid pipe pressure sensor 13 (being used to detect the second liquid pressure of liquid refrigerants here) being placed on liquid line 11,
Flow regulator includes the liquid flow-conditioning 14 being arranged on liquid line 11；Liquid flow-conditioning 14 is opened
Degree is controlled according to the difference between the first liquid pressure and the second liquid pressure, to simulate the pipeline pressure needed for air conditioner test
Difference.
In the present embodiment, the fluid circuit of pressure adjusting simulator further includes gas piping 21, first pressure sensing
Device further includes the first pipe pressure sensor 22 being arranged on gas piping 21 and (is used to detect first of gaseous coolant here
Amounts of pressurized gaseous), second pressure sensor further includes the second pipe pressure sensor 23 being arranged on gas piping 21 and (is used to examine
Survey the second amounts of pressurized gaseous of gaseous coolant here), flow regulator further includes the gas stream being arranged on gas piping 21
Quantity regulating device 24；The aperture of gas flow adjusting means 24 is according to the difference between the first amounts of pressurized gaseous and the second amounts of pressurized gaseous
Controlled, to simulate the pipeline pressure difference needed for air conditioner test.
In the above-described embodiments, pressure, which adjusts simulator, had both included liquid line 11 or including gas piping 21, more
In on-line system, the online pipe of liquid between outdoor unit and indoor units is connected with liquid line 11, the online Guan Yuqi of gas
Body pipeline 21 connects.The aperture of liquid flow-conditioning 14 is according to the difference between the first liquid pressure and the second liquid pressure
Controlled, the aperture of gas flow adjusting means 24 is controlled according to the difference between the first amounts of pressurized gaseous and the second amounts of pressurized gaseous
System.
In addition, pressure of the invention, which adjusts analog module, can also be arranged at every interior of multi-online air-conditioning system
In air inlet/inlet pipe of machine.In this case, pressure adjusts simulator and can only include liquid line 11 or only include
Gas piping 21.That is, the structure that the pressure of the present invention adjusts simulator can be carried out according to specific application scenarios
Flexibly set.
In a preferred embodiment, liquid flow-conditioning 14 includes at least two liquid pipe pressures being arranged in parallel
Power variable expansion valve 141；Gas flow adjusting means 24 include at least two tracheal pressure variable expansion valves being arranged in parallel
241.Preferably, liquid pipe pressure variable expansion valve 141, tracheal pressure variable expansion valve 242 are electric expansion valve.Pass through adjusting
The aperture of liquid pipe pressure variable expansion valve 141 and tracheal pressure variable expansion valve 242, you can the stream of control liquid/gaseous coolant
Amount, namely change pressure of the liquid/gaseous coolant by liquid pipe pressure variable expansion valve 141 or tracheal pressure variable expansion valve 242
Power is lost.
In conclusion the present invention adjusts simulator to simulate the pressure loss of refrigerant in multi-line system using pressure,
Entity device need not be recycled to simulate high drop, the environment of Super long tube, produced so as to dramatically reduce multi-line system newly
The huge input of product development phase, it is time saving and energy saving, it is cost-effective.Also, the pressure adjusting simulator of the present invention is simple in structure,
According to the pressure differential of two pressure sensors, with reference to the aperture of the pressure loss table of comparisons control flow control valve in table 1, control
The flow of refrigerant is to reach desired pressure loss value, simple operation.
Present invention also offers the operating method that a kind of pressure adjusts simulator, and with reference to Fig. 4, Fig. 4 is the pressure of the present invention
Power adjusts the flow chart of the operating method of simulator.As shown in figure 4, the operating method of the present invention includes：S110, obtain first
The first pressure value of pressure sensor and the second pressure value of second pressure sensor；S120, calculate first pressure value and the
The difference of two pressure values；S130, the aperture according to difference adjusting flow regulator.
In step s 130, desired pressure loss value is obtained according to the default pressure loss table of comparisons first；Then will
The difference is compared with desired pressure loss value；The aperture of flow regulator is adjusted according to comparative result.Wherein, preset
The pressure loss table of comparisons be multi-online air-conditioning system in refrigerant pressure loss with online caliber, the mapping table of length.
Specific regulating calculation method refers to above, and details are not described herein.
So far, the preferred embodiment shown in the drawings technical solution that the invention has been described, still, this area are had been combined
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make correlation technique feature equivalent change or replacement, these
Technical solution after changing or replacing it is fallen within protection scope of the present invention.
Claims (10)
1. a kind of pressure for air conditioner test adjusts simulator, it is characterised in that the pressure, which adjusts simulator, to be included
Fluid circuit, first pressure sensor, second pressure sensor and flow regulator,
The first pressure sensor, the flow regulator and the second pressure sensor be sequentially connected in series be arranged at it is described
On fluid circuit；
When fluid flows in the fluid circuit, the first pressure sensor detects the first pressure of the fluid, institute
The second pressure that second pressure sensor detects the fluid is stated, the aperture of the flow regulator is according to the first pressure
Difference between the second pressure is controlled, to simulate the pipeline pressure difference needed for air conditioner test.
2. pressure according to claim 1 adjusts simulator, it is characterised in that the fluid circuit includes liquid line
Road；
The first pressure sensor includes the first liquid pipe pressure sensor being arranged on the liquid line, second pressure
Force snesor includes the second liquid pipe pressure sensor being arranged on the liquid line, and the flow regulator includes setting
In on the liquid line and between the first liquid pipe pressure sensor and the second liquid pipe pressure sensor
Liquid flow-conditioning.
3. pressure according to claim 1 adjusts simulator, it is characterised in that the fluid circuit includes flue
Road；
The first pressure sensor includes the first pipe pressure sensor being arranged on the gas piping, second pressure
Force snesor includes the second pipe pressure sensor being arranged on the gas piping, and the flow regulator includes setting
In on the gas piping and between first pipe pressure sensor and second pipe pressure sensor
Gas flow adjusting means.
4. pressure according to claim 2 adjusts simulator, it is characterised in that the fluid circuit further includes flue
Road；
The first pressure sensor further includes the first pipe pressure sensor being arranged on the gas piping, and described second
Pressure sensor further includes the second pipe pressure sensor being arranged on the gas piping, and the flow regulator also wraps
Include and be arranged on the gas piping and positioned at first pipe pressure sensor and second pipe pressure sensor
Between gas flow adjusting means.
5. pressure according to claim 4 adjusts simulator, it is characterised in that the liquid flow-conditioning includes
At least two liquid pipe pressure variable expansion valves being arranged in parallel.
6. pressure according to claim 5 adjusts simulator, it is characterised in that the gas flow adjusting means include
At least two tracheal pressure variable expansion valves being arranged in parallel.
7. pressure according to claim 6 adjusts simulator, it is characterised in that the liquid pipe pressure variable expansion valve
And/or the tracheal pressure variable expansion valve is electric expansion valve.
8. pressure according to any one of claim 1 to 7 adjusts simulator, it is characterised in that the pressure is adjusted
Simulator is used to simulate pressure loss value of the multi-online air-conditioning system in high drop, Super long tube environment；
The pressure adjusts simulator and is arranged in the online pipeline between outdoor unit and indoor unit；And/or
The pressure is adjusted in the air inlet/inlet pipe for every indoor unit that simulator is arranged at multi-online air-conditioning system.
9. a kind of pressure adjusts the operating method of simulator, it is characterised in that the pressure adjusts simulator will for right
The pressure any one of 1 to 8 is asked to adjust simulator, the operating method includes：
Obtain the first pressure value of the first pressure sensor and the second pressure value of the second pressure sensor；
Calculate the difference of the first pressure value and the second pressure value；
The aperture of the flow regulator is adjusted according to the difference.
10. operating method according to claim 9, it is characterised in that " adjust the flow-rate adjustment according to the difference to fill
The step of aperture put ", specifically includes：
Desired pressure loss value is obtained according to the default pressure loss table of comparisons；
By the difference compared with the desired pressure loss value；
The aperture of the flow regulator is adjusted according to comparative result；
Wherein, the default pressure loss table of comparisons be multi-online air-conditioning system in refrigerant pressure loss with online caliber,
The mapping table of length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158548.9A CN108036465A (en) | 2017-11-20 | 2017-11-20 | Pressure for air conditioner test adjusts simulator and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158548.9A CN108036465A (en) | 2017-11-20 | 2017-11-20 | Pressure for air conditioner test adjusts simulator and its operating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036465A true CN108036465A (en) | 2018-05-15 |
Family
ID=62093977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711158548.9A Pending CN108036465A (en) | 2017-11-20 | 2017-11-20 | Pressure for air conditioner test adjusts simulator and its operating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108036465A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038398A (en) * | 1996-07-23 | 1998-02-13 | Toshiba Ave Corp | Controller of electric expansion valve |
| JP2009156516A (en) * | 2007-12-26 | 2009-07-16 | Samsung Electronics Co Ltd | Refrigerating cycle evaluation system |
| CN101498535A (en) * | 2005-04-07 | 2009-08-05 | 大金工业株式会社 | Air conditioner coolant amount judgment system |
| CN102706396A (en) * | 2011-03-28 | 2012-10-03 | 乐金电子(天津)电器有限公司 | Capillary tube flow testing device |
| CN104748262A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multi-split system |
| CN207585012U (en) * | 2017-11-20 | 2018-07-06 | 青岛海尔空调电子有限公司 | Simulator is adjusted for the pressure of air conditioner test |
-
2017
- 2017-11-20 CN CN201711158548.9A patent/CN108036465A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038398A (en) * | 1996-07-23 | 1998-02-13 | Toshiba Ave Corp | Controller of electric expansion valve |
| CN101498535A (en) * | 2005-04-07 | 2009-08-05 | 大金工业株式会社 | Air conditioner coolant amount judgment system |
| JP2009156516A (en) * | 2007-12-26 | 2009-07-16 | Samsung Electronics Co Ltd | Refrigerating cycle evaluation system |
| CN102706396A (en) * | 2011-03-28 | 2012-10-03 | 乐金电子(天津)电器有限公司 | Capillary tube flow testing device |
| CN104748262A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multi-split system |
| CN207585012U (en) * | 2017-11-20 | 2018-07-06 | 青岛海尔空调电子有限公司 | Simulator is adjusted for the pressure of air conditioner test |
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Application publication date: 20180515 |
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