CN110454375A - Use nitrogen as the system of refrigerant detection compressor effect - Google Patents
Use nitrogen as the system of refrigerant detection compressor effect Download PDFInfo
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- CN110454375A CN110454375A CN201910611783.XA CN201910611783A CN110454375A CN 110454375 A CN110454375 A CN 110454375A CN 201910611783 A CN201910611783 A CN 201910611783A CN 110454375 A CN110454375 A CN 110454375A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
Use nitrogen as the system of refrigerant detection compressor effect, including for separation of nitrogen and cooling medium separator, nitrogen heat-exchanging component, cooling medium heat-exchanging component, for nitrogen component, coolant compressor to be detected, separator, nitrogen heat-exchanging component are in turn connected to form nitrogen loop, described to be used to provide nitrogen to nitrogen loop for nitrogen component, the cooling medium heat-exchanging component is in circulation loop.Nitrogen is used to replace refrigerant as operation medium, due to the incoagulability of nitrogen, and its liquefaction point is very low, need extremely low cooling medium that can just condense the steam into liquid, therefore it exists in circulation with gaseous state always, it absorbs heat under the action of nitrogen and cooling medium to coolant compressor to be detected, it is merely whether verify the starting of coolant compressor, load, Load Alleviation Function effective that the use of nitrogen can satisfy only completely, and nitrogen is pollution-free, do not destroy ozone layer, the influence of not no greenhouse effects, and very low relative to refrigerant cost.
Description
Technical field
The present invention relates to the technical fields of coolant compressor effect detection, more particularly to nitrogen is used to examine as refrigerant
The system of measured compressed machine effect.
Background technique
In recent years, the construction of the refrigerant compressor test unit of coolant compressor producer is more and more, according to standard
The requirement of GB/T 5773 " positive displacement refrigerant compressor method for testing performance ", does a refrigerant pressure in refrigerant system
The experimental test of contracting machine, the machine from installing to tearing open at least obtain 2 hours, and the quantity tested daily is seldom.For mass production
For producer, needs to build the demand that more set refrigerant systems are just able to satisfy output, it is very high to build totle drilling cost.
Complete refrigerant circulation process includes four big components: coolant compressor, condenser, expansion valve and evaporator.
The high pressure, high temperature refrigerant overheated gas that coolant compressor exhaust outlet comes out is by condenser heat exchange condensation (release heat)
Afterwards, the refrigerant liquid of high pressure medium temperature becomes the vehicle repair major state of low-temp low-pressure after expansion valve throttles, into evaporator
Heat exchange evaporation (absorbing heat) becomes the refrigerant superheat gas of low pressure medium temperature afterwards.Condenser portion need to provide cold source heat exchange, steam
Hair device part need to provide heat source heat exchange, to maintain the cold and hot balance of circulation.
Summary of the invention
In order to overcome above-mentioned detection coolant compressor simple in the prior art whether can normally start, load, off-load function
Can whether effectively, the problem of being easily destroyed ozone layer using refrigerant, cause greenhouse effects, for this purpose, the present invention, which provides, uses nitrogen
System of the gas as refrigerant detection coolant compressor effect, may be implemented in the case of testing goal to environment in this way without dirt
Dye, does not also destroy ozone layer, will not generate greenhouse effects, and at low cost relative to refrigerant.
To achieve the above object, the invention adopts the following technical scheme:
Use nitrogen as the system of refrigerant detection compressor effect, including point for separation of nitrogen and cooling medium
From device, nitrogen heat-exchanging component, cooling medium heat-exchanging component, for nitrogen component, coolant compressor to be detected, separator, nitrogen
Gas heat-exchanging component is in turn connected to form nitrogen loop, described to be used to provide nitrogen, the cooling to nitrogen loop for nitrogen component
Media for heat exchange component is connect for cooling down to coolant compressor to be detected and lubricating with coolant compressor to be detected.
Further, system further includes adjusting the first valve group of air pressure, vacuum pump VP, first valve group on nitrogen loop
Including three ports, the corresponding both ends with coolant compressor air inlet and air outlet of two of them input terminal are connect,
The vacuum pump VP is by the air that is connect in the coolant compressor for evacuating new clothes with the output end of the first valve group to vacuum shape
State, in the air inlet of nitrogen component output gas to coolant compressor.
Restriction to the first valve group, first valve group include third pneumatic operated valve PBV3, the 4th pneumatic operated valve PBV4, the 5th gas
Dynamic valve PBV5, third pneumatic operated valve PBV3 and the 4th pneumatic operated valve PBV4 are connected to the air inlet and air outlet of coolant compressor
Both ends, pipeline connect after merging with the 5th one end pneumatic operated valve PBV5, the other end of the 5th pneumatic operated valve PBV5 and vacuum pump VP company
It connects.
To the restriction for nitrogen component, it is described for nitrogen component include first gas supply branch road on the 5th pump housing Pump5,
Air accumulator, the first pressure reducing valve PRV1, the 8th pneumatic operated valve PBV8, the 9th pneumatic operated valve PBV9 on the second gas supply branch road, first supplies
Gas branch is connect with source nitrogen close to one end of one end of the 5th pump housing Pump5 and the second gas supply branch, after other end connection
As the output end for nitrogen component, the pressure-measuring-point and for the 4th pressure gauge PG4 measurement is additionally provided on the air accumulator
Four safety valve RelfV4.
Restriction to the second valve group and third valve group is provided on the nitrogen loop between coolant compressor and separator
Second valve group, second valve group include the second switch valve BV2 being connected on nitrogen loop, the second pneumatic operated valve PBV2, are also wrapped
Include the first safety valve RelfV1 with turned on outside；
Third valve group is provided on the nitrogen loop of the coolant compressor input terminal, third valve group includes the first ball valve
BV1, the first pneumatic operated valve PBV1.
Restriction to cooling medium heat-exchanging component and fuel feeding component, the cooling medium in the cooling medium heat-exchanging component are
Oil, oil inlet C corresponding with coolant compressor and oil outlet D are connected and to be formed respectively at the both ends of the cooling medium heat-exchanging component
The oil circuit output end of the oil inlet pipe and oil outlet pipe of coolant compressor, oil eliminator is output in oil outlet pipe；It is described go out
It is also parallel on oil pipe line to the fuel feeding component of fuel-displaced oil pipe line fuel feeding, the fuel feeding component includes oil storage tank, gives oil storage tank confession
The oil drum of oil, the oil inlet branch and fuel-displaced branch connecting with oil outlet pipe, oil inlet branch road have been arranged in series the 8th switch valve BV8
With the 6th solenoid valve SV6, fuel-displaced branch road has been arranged in series the 9th ball valve BV9, the 7th pneumatic operated valve PBV7, the oil warp in oil storage tank
It crosses fuel-displaced branch to be output in oil outlet pipe, has been arranged in parallel fuel charger and oil treater on the 9th ball valve BV9.
Restriction to the 5th valve group is arranged the 5th between the cooling medium heat-exchanging component output end and coolant compressor
Valve group, the 5th valve group include with cooling medium heat-exchanging component be connected in series third pump housing Pump3, the second safety valve RelfV2,
Second flowmeter FM2, the 4th ball valve BV4, the first check valve CV1, the 7th switch valve BV7 further include being connected in parallel on the third pump housing
The 6th pneumatic operated valve PBV6 at the both ends Pump3；
Restriction to the 6th valve group is provided between the cooling medium heat-exchanging component input terminal and coolant compressor
Six valve groups, the 6th valve group include the 5th switch valve BV5, the 6th switch valve BV6, the 5th electromagnetism being connected in oil outlet pipe
Valve SV5 further includes the first needle-valve NV1 for being connected in parallel on the 6th both ends switch valve BV6.
Restriction to the 4th valve group, pipeline and the first ball valve between the first check valve CV1 and the 7th switch valve BV7
Piping connection between BV1 and the first pneumatic operated valve PBV1 forms air-breathing oil return line, and the is provided on the air-breathing oil return line
Four valve groups, the 4th valve group include the second needle-valve NV2.
The oil circuit output end of restriction to the 7th valve group, the oil eliminator passes through the 7th valve group and cooling medium heat exchange group
The input terminal of part connects, and the 7th valve group includes the third switch valve BV3 being arranged in series, the 4th solenoid valve SV4, second unidirectional
Valve CV2.
Restriction to pressure-regulating valve group, pressure-regulating valve group is additionally provided on the nitrogen loop, and the pressure is adjusted
Valve group includes first pressure adjuster PR1, second pressure adjuster PR2, third pressure regulator PR3, further include respectively with phase
First pressure adjuster PR1, second pressure adjuster PR2, the third pressure regulator PR3 answered forms concatenated first electricity of gas circuit
Magnet valve SV1, second solenoid valve SV2, third solenoid valve SV3 form pressure-regulating valve group after three gas circuits parallel connection after series connection
One input terminal and an output end.
The present invention has the advantages that
(1) nitrogen is used to replace refrigerant as operation medium, due to the incoagulability of nitrogen, and its liquefaction point is very low, needs
Extremely low cooling medium can just condense the steam into liquid, therefore it exists in circulation with gaseous state always, in nitrogen and cooling medium
Under the action of absorb heat to coolant compressor to be detected, nitrogen use can satisfy completely only be merely verifying refrigeration
Whether the starting of agent compressor, load, Load Alleviation Function are effective, and nitrogen is pollution-free, does not destroy ozone layer, without greenhouse effects
Influence, and it is very low relative to refrigerant cost.
(2) when nitrogen alternative refrigerant is run, examination judgement only is done to the load of coolant compressor and off-load, if system
The load of refrigerant compressor is normal with off-load, illustrates that refrigerant compression function runs well.Entire examination process only needs rather
Clock.Meanwhile the system equipment is few, so that cost of equipment less investment, occupation area of equipment is small, and power consumption is few.
(3) then the high pressure-temperature nitrogen of coolant compressor discharge passes through nitrogen heat-exchanging component after oil eliminator,
It exchanges heat through nitrogen heat-exchanging component, nitrogen cooling, the nitrogen after cooling throttles using valve group is adjusted into low-pressure gas, overheated gas
It is measured through flowmeter, returns to the suction end of coolant compressor.The pressure of inspiration(Pi) of coolant compressor by system initial balance
Pressure determines that pressure at expulsion determines by the charging amount of nitrogen in system, without phase-change due to nitrogen, therefore nitrogen heat-exchanging component and cold
But the cooling effect of media for heat exchange component is little to the pressure influence in nitrogen loop, the main temperature for influencing nitrogen temperature and oil
Degree, therefore do not need complicated pressure regulating mechanism.
(4) cooling medium has not only acted as the heat of absorption coolant compressor to be detected using oil, oil, additionally it is possible to play
Lubricate the effect of each component in coolant compressor.
(5) nitrogen will not be undergone phase transition in the present invention, therefore not need evaporator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of system in the present invention.
Fig. 2-5 is the local structural graph in system.
The meaning of label symbol is as follows in figure:
1- pressure-regulating valve group 2- nitrogen heat-exchanging component 3- separator 4- fuel feeding component
5- coolant compressor 6- is for nitrogen component 7- cooling medium heat-exchanging component
The 4th valve group of 11- the first valve group 12- the second valve group 13- third valve group 14-
The 7th valve group of the 5th the 6th valve group 17- of valve group 16- of 15-
Specific embodiment
As shown in Figs. 1-2, use nitrogen as the system of refrigerant detection 5 effect of coolant compressor, including for dividing
From nitrogen and the separator of cooling medium 3, nitrogen heat-exchanging component 2, cooling medium heat-exchanging component 7, for nitrogen component 6, pressure tune
Save valve group 1, the 4th valve group 14.Cooling medium heat-exchanging component 7 is oily heat-exchanging component in this embodiment, and separator 3 is oil separation
Device 3.
The gas circuit output end of coolant compressor 5 to be detected, separator 3, nitrogen heat-exchanging component 2, pressure-regulating valve group
1, the nitrogen input terminal of coolant compressor 5 is in turn connected to form nitrogen loop, described to be used to give nitrogen loop for nitrogen component 6
Nitrogen is provided, the cooling medium heat-exchanging component 7 is connect with coolant compressor 5 to be detected for refrigerant to be detected
Compressor 5 cools down.
System further includes adjusting the first valve group 11 of air pressure, vacuum pump VP on nitrogen loop.First valve group 11 includes
Three ports, the corresponding both ends with 5 air inlet and air outlet of coolant compressor of two of them input terminal are connect, described
Vacuum pump VP is by the air that is connect in the coolant compressor 5 for evacuating new clothes with the output end of the first valve group 11 to vacuum shape
State, for being additionally provided on the nitrogen loop first-class in the air inlet of 6 output gas of nitrogen component to coolant compressor 5
Meter FM1.
Specifically, the first valve group 11 includes third pneumatic operated valve PBV3, the 4th pneumatic operated valve PBV4, the 5th pneumatic operated valve PBV5, the
The both ends of the air inlet and air outlet of coolant compressor 5 are connected in parallel on after three pneumatic operated valve PBV3 and the 4th pneumatic operated valve PBV4 series connection,
Third pneumatic operated valve PBV3 and the 4th pneumatic operated valve PBV4 is connected to the both ends of the air inlet and air outlet of coolant compressor 5,
Pipeline is connect after merging with the 5th one end pneumatic operated valve PBV5, and the other end of the 5th pneumatic operated valve PBV5 is connect with vacuum pump VP, third
First pressure gauge PG1 is provided on pipeline between 5 input terminal of pneumatic operated valve PBV3 and coolant compressor in the first measuring point PS01
Place's measurement pressure.
The pressure-regulating valve group 1 includes first pressure adjuster PR1, second pressure adjuster PR2, the adjusting of third pressure
Device PR3, further include respectively with corresponding first pressure adjuster PR1, second pressure adjuster PR2, third pressure regulator PR3
Form the concatenated first solenoid valve SV1 of gas circuit, second solenoid valve SV2, third solenoid valve SV3, three gas circuit parallel connections after series connection
The input terminal and an output end of pressure-regulating valve group 1 are formed afterwards.5th pneumatic operated valve PBV5 can again plus one with it simultaneously
The valve of connection opens third pneumatic operated valve PBV3, the 4th pneumatic operated valve PBV4, the 5th gas when loading onto coolant compressor 5 to be measured
Dynamic valve PBV5, starting vacuum pump VP start to vacuumize, and after exhausting vacuum, close this third pneumatic operated valve PBV3, the 4th pneumatic operated valve
PBV4, the 5th pneumatic operated valve PBV5, then stop vacuum pump VP.After finishing test, it is pneumatic to open third pneumatic operated valve PBV3 and the 4th
Valve PBV4 and that valve in parallel, the gas of 5 part of coolant compressor to be detected are exhausted, so that it may tear machine open.Pressure tune
Save valve group 1 in pressure regulator quantity according to the actual situation depending on.
The second valve group 12, second valve group 12 are provided on nitrogen loop between coolant compressor 5 and separator 3
It further include the first safety with turned on outside including second switch valve BV2, the second pneumatic operated valve PBV2 being connected on nitrogen loop
Valve RelfV1 is additionally provided with the second temperature detector for detection gas temperature on the nitrogen loop that the second valve group 12 is arranged
PT02, the second pressure gauge PG2 for detecting pressure measure pressure at the second measuring point PS02.Coolant compressor to be detected
The second valve group on 5 gas exhaust piping closes the second pneumatic operated valve PBV2, the second ball valve BV2 is normally opened when vacuumizing.It exhausts true
The second pneumatic operated valve PBV2 is opened after sky, is finished test and is closed.
Third valve group 13, third valve group are provided on nitrogen loop between pressure-regulating valve group 1 and coolant compressor 5
13 include concatenated first ball valve BV1, the first pneumatic operated valve PBV1.First ball valve BV1, the pipe of the first pneumatic operated valve PBV1 between the two
Road connection is for the output terminals A of nitrogen component 6 and the output end B of the 4th valve group 14.The both ends of the cooling medium heat-exchanging component 7
Oil inlet C corresponding with coolant compressor 5 and oil outlet D connects the oil inlet pipe to form coolant compressor 5 and goes out respectively
Oil pipe line.Oil in the oil circuit output end E of separator 3 returns in oil outlet pipe.The third of 5 suction line of coolant compressor
Valve group closes the first pneumatic operated valve PBV1, the first ball valve BV1 is normally opened when vacuumizing.The first pneumatic operated valve is opened after exhausting vacuum
PBV1 finishes test and closes.
The third temperature detector PT03 being arranged between nitrogen heat-exchanging component 2 and pressure-regulating valve group 1.In setting second
It is additionally provided on the nitrogen loop of valve group 12 for the first temperature detector PT01 of detection gas temperature and the 4th temperature detection
Device PT04, the third pressure gauge PG3 for detecting pressure；Wherein the first temperature detector PT01 setting is in the first ball valve BV1, the
Between one pneumatic operated valve PBV1, the input terminal of first flowmeter FM1, third pressure gauge PG3 is arranged in the 4th temperature detector PT04
Pressure is measured at third measuring point PS03, third measuring point PS03 is close to the 4th temperature detector PT04.It is above-mentioned to be detected to detector
Result as the foundation for controlling each threshold switch time.
As shown in figure 3, it is described for nitrogen component 6 include first gas supply branch road on the 5th pump housing Pump5, air accumulator,
First pressure reducing valve PRV1, the 8th pneumatic operated valve PBV8, the 9th pneumatic operated valve PBV9 on the second gas supply branch road.First gas supply branch leans on
One end of nearly 5th pump housing Pump5 and one end of the second gas supply branch are connect with source nitrogen, as nitrogen after other end connection
The output end of pneumatic module 6 is additionally provided with the peace of pressure-measuring-point PS07 and the 4th for the 4th pressure gauge PG4 measurement on the air accumulator
Full valve RelfV4.
As shown in figure 4, on oil inlet pipe between 7 output end of cooling medium heat-exchanging component and coolant compressor 5
5th valve group 15 is set, and the 5th valve group 15 includes connecting with cooling medium heat-exchanging component 7 and exporting from cooling medium heat-exchanging component 7
Hold sequentially connected third pump housing Pump3, the second safety valve RelfV2, second flowmeter FM2, the 4th ball valve BV4, first unidirectionally
Valve CV1, the 7th switch valve BV7 further include the 6th pneumatic operated valve PBV6 for being connected in parallel on the both ends third pump housing Pump3.Cooling medium is changed
The input end of hot component 7 is provided with the 5th temperature detector PT05 and the 4th measuring point PS04 for pressure detecting, and output end is set
It is equipped with the 6th temperature detector PT06.
The 6th is provided in oil outlet pipe between 7 input terminal of cooling medium heat-exchanging component and coolant compressor 5
Valve group 16, the 6th valve group 16 include for being connected in oil outlet pipe and setting gradually from 5 output end of coolant compressor
Five switch valve BV5, the 6th switch valve BV6, the 5th solenoid valve SV5 further include the first needle for being connected in parallel on the 6th both ends switch valve BV6
Valve NV1.
As shown in figure 4, the pipeline and the first ball valve BV1 between the first check valve CV1 and the 7th switch valve BV7 and
B point on pipeline between one pneumatic operated valve PBV1 connects to form air-breathing oil return line, and the 4th valve group 14 setting is returned in air-breathing
On oil pipe line, the 4th valve group 14 includes the second needle-valve NV2, and the 5th pressure gauge is additionally provided on air-breathing oil return line
PG5 measures pressure at the 5th measuring point PS05.
The oil circuit output end of the oil eliminator 3 is connected by the 7th valve group 17 and the input terminal of cooling medium heat-exchanging component 7
It connects, the 7th valve group 17 includes third switch valve BV3, the 4th solenoid valve connected and set gradually from 3 output end of separator
SV4, second one-way valve CV2.
As shown in figure 5, being also parallel in the oil outlet pipe to the fuel feeding component 4 of oil outlet pipe fuel feeding, tie point is located at
F point and G point in oil outlet pipe, the fuel feeding component 4 include oil storage tank, oil drum and the oil outlet pipe company to oil storage tank fuel feeding
The oil inlet branch and fuel-displaced branch connect, oil inlet branch road has been arranged in series the 8th switch valve BV8 and the 6th solenoid valve SV6, fuel-displaced
Branch road has been arranged in series the 9th ball valve BV9, the 7th pneumatic operated valve PBV7, and the oil in oil storage tank is output to fuel-displaced by fuel-displaced branch
On pipeline, fuel charger and oil treater have been arranged in parallel on the 9th ball valve BV9.It is provided on the oil drum for detecting storage
7th temperature detector PT07 of oil temperature in oil tank, after the oil in oil drum passes sequentially through third pump housing Pump4, the tenth ball valve BV10
It is flowed into oil storage tank, the exhaust branch of balance oil drum air pressure is additionally provided with above oil storage tank, branch road is provided with the 11st
Ball valve BV11, and it is additionally provided with the 6th pressure-measuring-point PS06.Oil conservator is past when shortage of oil in system for the setting of fuel feeding component 4
Oiling in system, and when oil is excessive in system, extra oil can be discharged in oil conservator and be stored.
Nitrogen heat-exchanging component 2 and cooling medium heat-exchanging component 7 in Fig. 1 is as shown in Figure 2 and Figure 4, as shown in Fig. 2, nitrogen
Heat-exchanging component 2 includes First Heat Exchanger HX1 and the component for making First Heat Exchanger HX1 normal work, as shown in figure 4, cooling medium
Heat-exchanging component 7 includes First Heat Exchanger HX2 and the component for making First Heat Exchanger HX2 normal work, and details are not described herein.
The initial balance pressure of system is provided by the pressure of source nitrogen, if this pressure is relatively low, can pass through the 5th pump housing
Enter in system after Pump5 pressurization.Source nitrogen must provide clean nitrogen, and purity is not less than 98%.
Nitrogen heat-exchanging component 2 on nitrogen loop is cooling by the nitrogen of high pressure-temperature, but nitrogen is without phase-change, and then high pressure is high
After the nitrogen of temperature becomes low-pressure gas after pressure-regulating valve group 1, the suction end of coolant compressor 5 is returned to；Meanwhile from system
The oil that refrigerant compressor 5 comes out exchanges heat by cooling medium heat-exchanging component 7 and cools down, returns to coolant compressor 5.Nitrogen heat exchange
Component 2 and oil cooler jointly take away the heat that coolant compressor 5 generates, and the cold and hot balance of circulation are maintained, so that testing
Whether the starting, load, Load Alleviation Function for demonstrate,proving coolant compressor 5 can effectively run well in the process.
The oil that above-mentioned 4th valve group 14 is used to control in oil return line enters in nitrogen loop, and the 5th valve group 15 controls cold
But whether the oil in media for heat exchange component 7 enters in coolant compressor 5 and air-breathing oil return line, the 6th valve group 16 control system
It is cooling whether the oil in refrigerant compressor 5 is flowed into cooling medium heat-exchanging component 7.7th valve group 17 controls in oil eliminator 3
Oil flow back into cooling medium heat-exchanging component 7.
Whether effective the starting of system verifying coolant compressor 5, load, Load Alleviation Function step be specific as follows:
Coolant compressor 5 starts after S1, energization, then loads the included solenoid valve classification of coolant compressor 5 itself
It acts, after every grade of electromagnetism valve events that coolant compressor 5 itself carries, is according to whether current value reaches setting value judgement
It is no to load in place, if continuing the load of next stage in place, until being completely loaded into 100%.
S2, since 100% at full capacity off-load, when every grade of off-load, judge whether according to whether current value reaches setting value
Off-load in place, if continuing the off-load of next stage in place, until off-load is to initial load.
The above is only the preferred embodiments of the invention, are not intended to limit the invention creation, all in the present invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the invention within the spirit and principle of creation
Within the scope of shield.
Claims (10)
1. using nitrogen as the system of refrigerant detection compressor effect, which is characterized in that including for separation of nitrogen and cold
But the separator (3) of medium, nitrogen heat-exchanging component (2), cooling medium heat-exchanging component (7), for nitrogen component (6), it is to be detected
Coolant compressor (5), separator (3), nitrogen heat-exchanging component (2) are in turn connected to form nitrogen loop, described for nitrogen component
(6) for providing nitrogen to nitrogen loop, the cooling medium heat-exchanging component (7) and coolant compressor to be detected (5) are even
It connects for cooling down to coolant compressor to be detected (5) and lubricating.
2. the system according to claim 1 for using nitrogen as refrigerant detection compressor effect, which is characterized in that be
System further includes adjusting the first valve group (11) of air pressure, vacuum pump VP on nitrogen loop, and first valve group (11) includes three ends
Mouthful, the corresponding both ends with coolant compressor (5) air inlet and air outlet of two of them input terminal are connect, the vacuum
Air in coolant compressor (5) of the pump VP by connect evacuation new clothes with the output end of the first valve group (11) is to vacuum shape
State, in the air inlet of nitrogen component (6) output gas to coolant compressor (5).
3. the system according to claim 2 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
Stating the first valve group (11) includes third pneumatic operated valve PBV3, the 4th pneumatic operated valve PBV4, the 5th pneumatic operated valve PBV5, third pneumatic operated valve PBV3
Be connected to the both ends of the air inlet and air outlet of coolant compressor (5) with the 4th pneumatic operated valve PBV4, pipeline merge after with
The connection of 5th one end pneumatic operated valve PBV5, the other end of the 5th pneumatic operated valve PBV5 are connect with vacuum pump VP.
4. the system according to claim 1 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
Stating for nitrogen component (6) includes the 5th pump housing Pump5, air accumulator, the first pressure reducing valve PRV1, the 8th on the first gas supply branch road
Pneumatic operated valve PBV8, the 9th pneumatic operated valve PBV9 on the second gas supply branch road, the first gas supply branch is close to the one of the 5th pump housing Pump5
End and one end of the second gas supply branch are connect with source nitrogen, as the output end for nitrogen component (6), institute after other end connection
State the pressure-measuring-point and the 4th safety valve RelfV4 being additionally provided on air accumulator for the 4th pressure gauge PG4 measurement.
5. the system according to claim 1 for using nitrogen as refrigerant detection compressor effect, which is characterized in that
It is provided on nitrogen loop between coolant compressor (5) and separator (3) the second valve group (12), second valve group
(12) include the second switch valve BV2 being connected on nitrogen loop, the second pneumatic operated valve PBV2, further include first with turned on outside
Safety valve RelfV1；
It is provided with third valve group (13) on the nitrogen loop of coolant compressor (5) input terminal, third valve group (13) includes
First ball valve BV1, the first pneumatic operated valve PBV1.
6. the system according to claim 1 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
Cooling medium in cooling medium heat-exchanging component (7) is stated as oil, the both ends of the cooling medium heat-exchanging component (7) respectively with refrigeration
The corresponding oil inlet C of agent compressor (5) connects the oil inlet pipe and oil outlet pipe to form coolant compressor (5) with oil outlet D,
The oil circuit output end of oil eliminator (3) is output in oil outlet pipe；It is also parallel in the oil outlet pipe and is supplied to fuel-displaced oil pipe line
The fuel feeding component (4) of oil, the fuel feeding component (4) include oil storage tank, connect to the oil drum of oil storage tank fuel feeding, with oil outlet pipe
Oil inlet branch and fuel-displaced branch, oil inlet branch road have been arranged in series the 8th switch valve BV8 and the 6th solenoid valve SV6, fuel-displaced branch
On be arranged in series the 9th ball valve BV9, the 7th pneumatic operated valve PBV7, the oil in oil storage tank is output to oil outlet pipe by fuel-displaced branch
On, fuel charger and oil treater have been arranged in parallel on the 9th ball valve BV9.
7. the system according to claim 5 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
State the 5th valve group (15) of setting, the 5th valve group (15) between cooling medium heat-exchanging component (7) output end and coolant compressor (5)
Including third pump housing Pump3, the second safety valve RelfV2, second flowmeter being connected in series with cooling medium heat-exchanging component (7)
FM2, the 4th ball valve BV4, the first check valve CV1, the 7th switch valve BV7 further include be connected in parallel on the both ends third pump housing Pump3
Six pneumatic operated valve PBV6；
The 6th valve group (16) is provided between cooling medium heat-exchanging component (7) input terminal and coolant compressor (5), it is described
6th valve group (16) includes the 5th switch valve BV5, the 6th switch valve BV6, the 5th solenoid valve SV5 being connected in oil outlet pipe,
It further include the first needle-valve NV1 for being connected in parallel on the 6th both ends switch valve BV6.
8. the system according to claim 7 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
State the pipe between the pipeline and the first ball valve BV1 and the first pneumatic operated valve PBV1 between the first check valve CV1 and the 7th switch valve BV7
Road connects to form air-breathing oil return line, and the 4th valve group (14), the 4th valve group (14) are provided on the air-breathing oil return line
Including the second needle-valve NV2.
9. the system according to claim 7 for using nitrogen as refrigerant detection compressor effect, which is characterized in that institute
The oil circuit output end for stating oil eliminator (3) is connect by the 7th valve group (17) with the input terminal of cooling medium heat-exchanging component (7), institute
Stating the 7th valve group (17) includes third switch valve BV3, the 4th solenoid valve SV4, second one-way valve CV2 being arranged in series.
10. the system according to claim 1 for using nitrogen as refrigerant detection compressor effect, which is characterized in that
It is additionally provided on the nitrogen loop pressure-regulating valve group (1), the pressure-regulating valve group (1) includes first pressure adjuster
PR1, second pressure adjuster PR2, third pressure regulator PR3, further include respectively with corresponding first pressure adjuster PR1,
Second pressure adjuster PR2, third pressure regulator PR3 formed the concatenated first solenoid valve SV1 of gas circuit, second solenoid valve SV2,
Third solenoid valve SV3 forms an input terminal of pressure-regulating valve group (1) after three gas circuits parallel connection after series connection and one exports
End.
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Application publication date: 20191115 |