CN108547763A - A kind of air inlet regulating device for reciprocating compressor enclosed performance test system - Google Patents
A kind of air inlet regulating device for reciprocating compressor enclosed performance test system Download PDFInfo
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- CN108547763A CN108547763A CN201810663734.6A CN201810663734A CN108547763A CN 108547763 A CN108547763 A CN 108547763A CN 201810663734 A CN201810663734 A CN 201810663734A CN 108547763 A CN108547763 A CN 108547763A
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 45
- 238000011056 performance test Methods 0.000 title claims abstract description 33
- 238000004880 explosion Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 230000003434 inspiratory effect Effects 0.000 claims description 5
- 230000010349 pulsation Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 4
- 230000002195 synergetic effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 42
- 238000003860 storage Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004320 controlled atmosphere Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention belongs to compressor test correlative technology fields, it discloses a kind of air inlet regulating devices for reciprocating compressor enclosed performance test system, the air inlet regulating device includes the tonifying Qi component being connected and air inlet temperature and pressure adjusting part, and the air inlet regulating device is connected to the gas exhaust piping and air inlet of compressor to be measured by the air inlet temperature and pressure adjusting part；The tonifying Qi component acts synergistically with the air inlet temperature and pressure adjusting part so that the intake air temperature and admission pressure of the compressor to be measured are stablized in predetermined intake-air temperature and predetermined admission pressure；The tonifying Qi component is for providing stable air source to be inflated to the air inlet temperature and pressure adjusting part comprising is sequentially connected the air supply compressor connect, tonifying Qi air accumulator and control valve group；The air inlet temperature and pressure adjusting part includes air inlet air accumulator, and the air inlet air accumulator is used to stablize the charge air flow of compressor to be measured.The present invention improves stability and precision, and flexibility is higher, and practicability is stronger.
Description
Technical field
The invention belongs to compressor test correlative technology fields, are closed for reciprocating compressor more particularly, to one kind
The air inlet regulating device of formula performance test system.
Background technology
Compressor is widely used in the fields such as petrochemical industry, building machinery as universal machine, to compressor progressive
It can test, examine whether finished product compressor is qualified, optimization compressor arrangement and performance etc. is significant.
Reciprocating compressor enclosed performance test system has two kinds of open system and closed system, the wherein behaviour of open system
Make simply, equipment installation requirement and advantage of lower cost, existing reciprocating compressor performance test stand mostly use this cycle side
Formula, and compressor induction part is directly connected with air in open system, for air inlet operating mode close to air operating mode, experiment working medium is limited
(being only air) leads to operating condition of test substantial deviation design conditions etc..
At this stage, the performance test stand for being partly directed to Miniature reciprocating compressor design uses closed cycle mode, passes through
Air-breathing operating mode, medium type are regulated and controled, experimental condition is made to be more nearly the design condition of compressor, this mode solves well
It has determined working medium present in open system, operating mode limitation problem.But existing Miniature reciprocating compressor closed cycle experiment
Induction part is usually not provided with buffering and storage device in system, but is directly filled to closed system pipeline using tonifying Qi bottle
Gas, and so on the air-breathing pulsation of formula compressor has an impact the precision of flow measurement and the stabilization of air inlet, and control accuracy
It is more demanding, if there are tonifying Qi not in time or when air compensation deficiency, safety accident easily occurs.Correspondingly, this field exists
A kind of stability of development and the higher air inlet regulating device for reciprocating compressor enclosed performance test system of precision
Technical need.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides one kind being used for reciprocating compressor enclosed
The air inlet regulating device of performance test system, the work based on existing reciprocating compressor enclosed performance test system are special
Point, study and devise a kind of stability and precision be preferably used for reciprocating compressor enclosed performance test system into controlled atmosphere
Regulating device.The air inlet regulating device by tonifying Qi component and air inlet temperature and pressure adjusting part to compressor inlet air temperatures and pressure into
Row is adjusted, while buffering inspiratory airflow by air inlet air accumulator, cuts down gas, by valve group accuracy-control system tonifying Qi,
Thus it under conditions of ensuring pilot system operation stability, processing safety, test accuracy, realizes and is waited under more air inlet operating modes
The air inlet adjustment of measured compressed unit and performance test.
To achieve the above object, the present invention provides a kind of air inlets for reciprocating compressor enclosed performance test system
Regulating device, the air inlet regulating device include tonifying Qi component and air inlet temperature and pressure adjusting part, and the tonifying Qi component is connected to institute
Air inlet temperature and pressure adjusting part is stated, the air inlet regulating device is connected to compressor to be measured by the air inlet temperature and pressure adjusting part
Gas exhaust piping and air entry；
The tonifying Qi component and the air inlet temperature and pressure adjusting part act synergistically so that the compressor to be measured into temperature
Degree and admission pressure are stablized in predetermined intake-air temperature and predetermined admission pressure；Wherein, the tonifying Qi component is stable for providing
Air source is to be inflated the air inlet temperature and pressure adjusting part comprising is sequentially connected the air supply compressor connect, tonifying Qi air accumulator
And control valve group, the tonifying Qi air accumulator is for storing make-up gas；The air inlet temperature and pressure adjusting part is waited for for keeping described
The temperature and pressure of measured compressed machine air inlet are constant comprising air inlet air accumulator, the air inlet air accumulator wait for measured compressed for stabilization
The charge air flow of machine.
Further, the air inlet temperature and pressure adjusting part further includes fine tune temperature heat exchanger, and the air inlet air accumulator passes through
The fine tune temperature heat exchanger is connected to the gas exhaust piping.
Further, the control valve group includes hand stop valve, pressure reducing valve, solenoid valve, automatic regulating valve and check-valves,
The tonifying Qi air accumulator, the shut-off valve, the pressure reducing valve, the solenoid valve, the automatic regulating valve, the check-valves and institute
It states air inlet air accumulator and is sequentially connected and connect.
Further, the tonifying Qi component includes the first shut-off valve and device for drying and filtering, and the air supply compressor leads to successively
It crosses the device for drying and filtering and first shut-off valve is connected to the tonifying Qi air accumulator.
Further, the tonifying Qi component further includes the second shut-off valve and special working medium tonifying Qi bottle, second shut-off valve
One end be connected to the pipeline between the tonifying Qi air accumulator and first shut-off valve, the other end is connected to the special working medium
Tonifying Qi bottle；First shut-off valve is interlocked with second shut-off valve, i.e., described first shut-off valve or second shut-off valve
When unlatching, second shut-off valve or first shut-off valve are closed.
Further, the tonifying Qi component further includes the first temperature sensor being separately positioned on the tonifying Qi air accumulator
And first pressure sensor, first temperature sensor and the first pressure sensor are respectively used to detect the tonifying Qi storage
Gas temperature in gas tank and pressure.
Further, the tonifying Qi component further includes the first safety valve being separately positioned on the tonifying Qi air accumulator and
One pressure release electromagnetic valve, first safety valve and first pressure release electromagnetic valve are all connected to drain.
Further, the air inlet temperature and pressure adjusting part further includes the second blowdown valve, second temperature sensor, second pressure
Sensor opens air inlet electromagnetic valve and anti-negative pressure of vacuum control valve, second blowdown valve, the second temperature sensor, institute soon
It states second pressure sensor, described open air inlet electromagnetic valve soon and the anti-negative pressure of vacuum control valve is separately positioned on the air inlet storage
On gas tank.
Further, the air inlet temperature and pressure adjusting part further includes rupture disk and bump joint, the bump joint connection
In the air inlet air accumulator, the rupture disk is arranged in the bump joint.
Further, the rupture disk includes reversed anti-explosion holder, rupture disk and isolation net, and the rupture disk setting exists
Between the reversed anti-explosion holder and isolation net, the isolation net is arranged adjacent to the air inlet air accumulator；The air inlet
The volume of air accumulator is 100 times of the compressor single maximal inspiratory capacity to be measured.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, use provided by the invention
It is mainly had the advantages that in the air inlet regulating device of reciprocating compressor enclosed performance test system：
1. the tonifying Qi component acts synergistically with the air inlet temperature and pressure adjusting part, it can ensure air inlet operating mode constant temperature and pressure
Under conditions of, a variety of air inlet operating modes levels of accurate simulation are automatically controlled by the valve group, a variety of examinations are realized by pipeline switching
The test for testing Alternative Refrigerant Compressors type has the wider scope of application.
2. the tonifying Qi air accumulator is used for storage section make-up gas, to prevent the frequent start-stop of the air supply compressor,
The exhaust gas pulses that tonifying Qi air-flow can also be buffered, cut down the air supply compressor, meanwhile, the air inlet air accumulator stablizes air inlet gas
Stream cuts down air-breathing pulsation, to prevent the influence to the flow measurement accuracy in system, improves the stability and flow of system
Measurement accuracy.
3. it is provided with simultaneously on the air inlet air accumulator and opens air inlet electromagnetic valve, anti-negative pressure of vacuum control valve and rupture disk soon,
It is exploded with preventing the air inlet air accumulator from forming vacuum from multiple angles, it is therefore prevented that negative pressure risk stores up the air inlet
Gas tank has carried out multiple protective；The gas flow in tonifying Qi pipeline is controlled by automatic regulating valve in the tonifying Qi component, really
Safety has been protected, and has been caused danger by minimum valve position being arranged valve is avoided to shut, the processing safety of system is improved.
4. the rupture disk setting is between the reversed anti-explosion holder and isolation net, the isolation net is adjacent to institute
The setting of air inlet air accumulator is stated, the reversed anti-explosion holder is close to the rupture disk to prevent the rupture disk reversed under positive pressure
Explosion, the isolation net is for preventing the residual fragment after explosion from blocking pipeline into the air inlet air accumulator.
Description of the drawings
Fig. 1 be first embodiment of the invention provide for reciprocating compressor enclosed performance test system into controlled atmosphere
The schematic diagram of regulating device.
Fig. 2 is the air inlet regulating device borehole blasting piece knot for reciprocating compressor enclosed performance test system in Fig. 1
The partial sectional view of structure.
Fig. 3 is the reverse demolition of the air inlet regulating device for reciprocating compressor enclosed performance test system in Fig. 2
The schematic diagram of holder.
Fig. 4 is the rupture disk of the air inlet regulating device for reciprocating compressor enclosed performance test system in Fig. 2
Schematic diagram.
Fig. 5 is the isolation net of the air inlet regulating device for reciprocating compressor enclosed performance test system in Fig. 2
Schematic diagram.
In all the appended drawings, identical reference numeral is used for indicating identical element or structure, wherein：1- tonifying Qi components,
10- hand stop valves, 11- pressure reducing valves, 12- solenoid valves, 13- automatic regulating valves, 14- check-valves, 15- tonifying Qi air accumulators, 16-
One blowdown valve, the first temperature sensors of 17-, 18- first pressure sensors, the first safety valves of 19-, the first pressure release electromagnetic valves of 20-,
The first shut-off valves of 21-, 22- devices for drying and filtering, 23- air supply compressors, the second shut-off valves of 24-, the special working medium tonifying Qi bottles of 25-, 2-
Air inlet temperature and pressure adjusting part, 30- air inlet air accumulators, the second blowdown valves of 31-, 32- second temperature sensors, 33- second pressures pass
Sensor, 34- open air inlet electromagnetic valve soon, the anti-negative pressure of vacuum control valves of 35-, 36- rupture disks, the second safety valves of 37-, and 38- second is let out
Pressure electromagnetic valve, 39- fine tune temperature heat exchangers, 40- bump joints, 41- holding rings, the reversed anti-explosion holders of 42-, 43- rupture disks,
44- completely cuts off net.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
It please refers to Fig.1 and Fig. 2, first embodiment of the invention offer is used for reciprocating compressor enclosed performance test system
The air inlet regulating device of system is connected to compressor to be measured comprising tonifying Qi component 1 and air inlet temperature and pressure adjusting part 2, the tonifying Qi
Component 1 is connected to the air inlet temperature and pressure adjusting part 2, and the air inlet temperature and pressure adjusting part 2 is for connecting compressor to be measured.
The tonifying Qi component 1 is inflated for establishing stable air source with treating tonifying Qi component comprising manual shutoff
Valve 10, pressure reducing valve 11, solenoid valve 12, automatic regulating valve 13, check-valves 14, tonifying Qi air accumulator 15, first the 16, first temperature of blowdown valve
Spend sensor 17, first pressure sensor 18, the first safety valve 19, the first pressure release electromagnetic valve 20, the first shut-off valve 21, dried
Filter 22, air supply compressor 23, the second shut-off valve 24 and special working medium tonifying Qi bottle 25.
The entrance of the device for drying and filtering 22 and outlet are connected to the air supply compressor 23 and first cut-off
The other end of one end of valve 21, first shut-off valve 21 is connected to the tonifying Qi air accumulator 15.Second shut-off valve 24
One end is connected on the pipeline between the tonifying Qi air accumulator 15 and first shut-off valve 21, and the other end is connected to the spy
Different working medium tonifying Qi bottle 25.The tonifying Qi air accumulator 15 pass sequentially through the hand stop valve 10, pressure reducing valve 11, solenoid valve 12, from
Dynamic regulating valve 13 and check-valves 14 are connected to the air inlet temperature and pressure adjusting part 2.First blowdown valve 16, first temperature
Sensor 17 and the first pressure sensor 18 are separately positioned on the tonifying Qi air accumulator 15.First safety valve 19
One end is connected to the tonifying Qi air accumulator 15, and the other end is connected to evacuation port.One end of first pressure release electromagnetic valve 20 connects
In the tonifying Qi air accumulator 15, the other end is connected to the evacuation port.
The hand stop valve 10, the pressure reducing valve 11, the solenoid valve 12, the automatic regulating valve 13 and the non-return
14 composition control valve group of valve, the control valve group is for accurately controlling tonifying Qi operation.Wherein, the hand stop valve 10 is used for
The air supply compressor 23 establishes the backpressure condition needed for the gas exhaust piping of the air supply compressor 23 when starting；In the tonifying Qi
When the pressure at expulsion of compressor 23 is constant, different superfeed pressures is obtained by setting the downstream pressure value of the pressure reducing valve 11
(the superfeed pressure value is equal with the air inlet pressure force value of compressor to be measured), and then it is adapted to various inlet pressure type；The electromagnetism
Valve 12 is used to control the keying of tonifying Qi pipeline, terminates tonifying Qi process to cut off tonifying Qi pipeline when tonifying Qi is completed；It is described automatic
Regulating valve 13 is used to control the gas flow in tonifying Qi pipeline, and to ensure to adjust safety, the automatic regulating valve 13 has minimum
Control of valve position, to avoid valve is shut and is caused danger；The check-valves 14 is used to showing for gas backstreaming occur in tonifying Qi pipeline
As.
The tonifying Qi air accumulator 15 can in tonifying Qi storage section make-up gas, to prevent the air supply compressor 23
Frequent start-stop, the exhaust gas pulses that tonifying Qi air-flow can also be buffered, cut down the air supply compressor 23.It is arranged in the tonifying Qi gas storage
First temperature sensor 17 and the first pressure sensor 18 on tank 15 are respectively used to detect the tonifying Qi air accumulator
Gas temperature in 15 and pressure；First safety valve 19 is used to prevent the gas superpressure in the tonifying Qi air accumulator 15；Institute
The first pressure release electromagnetic valve 20 is stated for carrying out pressure discharge operations to the tonifying Qi air accumulator 15 when shutting down；The blowdown valve 16 for pair
The tonifying Qi air accumulator 15 carries out blowdown.
When make-up gas is special gas (such as natural gas), first shut-off valve 21 is cut off, and opens described the
Two shut-off valves 24, the special working medium tonifying Qi bottle 25 treat tonifying Qi component by the tonifying Qi air accumulator 15 and the control valve group
Carry out tonifying Qi.
Fig. 3, Fig. 4 and Fig. 5 are please referred to, the air inlet temperature and pressure adjusting part 2 is for ensuring air inlet in closed circulation system
Temperature and pressure is constant comprising air inlet air accumulator 30, the second blowdown valve 31, second temperature sensor 32, second pressure sensing
Device 33 opens air inlet electromagnetic valve 34, anti-negative pressure of vacuum control valve 35, rupture disk 36, the second safety valve 37, the second pressure release electromagnetic valve soon
38, fine tune temperature heat exchanger 39 and bump joint 40.
The fine tune temperature heat exchanger 39 is connected to the gas exhaust piping of compressor to be measured, is set gradually on the gas exhaust piping
There are cooling component, reducing pressure by regulating flow component and flow measuring components, one end of the fine tune temperature heat exchanger 39 to be connected to the stream
Measurement component and the other end is connected to the air inlet air accumulator 30, be used to treat measured compressed machine delivery temperature carry out it is accurate
It adjusts.In present embodiment, the flow of the heat transferring medium in the fine tune temperature heat exchanger 39 is according to the air inlet air accumulator
What the gas temperature signal in 30 was adjusted.
The air inlet air accumulator 30 is used to establish the admission pressure operating mode of compressor to be measured, and stablizes charge air flow, cuts down
Air-breathing is pulsed, to prevent the accuracy to the flow measurement in system from having an impact.In present embodiment, the air inlet air accumulator
30 volume is 100 times of compressor single maximal inspiratory capacity to be measured, utmostly to reduce air-breathing pulsation；The air inlet gas storage
One interface of tank 30 is connected to the air inlet of compressor to be measured.
Second safety valve 37 and second pressure release electromagnetic valve 38 are separately positioned on the air inlet air accumulator 30, and
It is all connected to the evacuation port.Second blowdown valve 31, the second temperature sensor 32, the second pressure sensor
33, described to open air inlet electromagnetic valve 34 soon and the anti-negative pressure of vacuum control valve 35 is separately positioned on the air inlet air accumulator 30.
In present embodiment, it is contemplated that closed system is not connected with air, if occur flowing back or tonifying Qi not in time, fill
The problems such as gas velocity rate is improper can cause to form vacuum or superpressure in 30 short time of air inlet air accumulator and explode, this
When so that air inlet air accumulator 30 is connected with air by the quick unlatching for opening air inlet electromagnetic valve 34 soon, be rapidly introduced into gas
Stream thus prevents the air inlet air accumulator 30 and forms vacuum and explode.The anti-negative pressure of vacuum control valve 35 is for preventing
The only negative pressure risk of the air inlet air accumulator 30, to carry out second protection to the air inlet air accumulator 30.The bump joint 40
It is connected to the air inlet air accumulator 30, the rupture disk 36 is arranged by a pair of of holding ring 41 in the bump joint 40.When
Gas pressure in the air inlet air accumulator 30 is relatively low or when close to vacuum, the rupture disk 36 moment inside explosion, with big
Area is released gas, and then is avoided the air inlet air accumulator 30 flat because inhaling due to exploded.
The rupture disk 36 includes that reversed anti-explosion holder 42, rupture disk 43 and isolation net 44, the rupture disk 43 are arranged
Described reversed between anti-explosion holder 42 and the isolation net 44, the isolation net 44 is set adjacent to the air inlet air accumulator 30
It sets.The reversed anti-explosion holder 42 is circular sheet-like structures, offers multiple spaced through-holes thereon.Present embodiment
In, the reversed anti-explosion holder 42 is rigid structure, and edge is connected on the inner wall of the bump joint 40, and is close to institute
Rupture disk 43 is stated to prevent the reverse demolition under positive pressure of the rupture disk 43.The isolation net 44 is circular rigid net knot
Structure, edge are connected to the inner wall of the bump joint 40, for preventing the residual fragment after explosion from being stored up into the air inlet
Gas tank 30 and block pipeline.
Second safety valve 37 and second pressure release electromagnetic valve 38 are for preventing 30 superpressure of air inlet air accumulator.When
When the pressure of the air inlet air accumulator 30 is more than predetermined value, second safety valve 37 and second pressure release electromagnetic valve 38 are opened
And automatic leakage deflation body, then prevent the air inlet air accumulator 30 from causing explosion because of superpressure.Second pressure release electromagnetic valve 38
It is additionally operable to carry out pressure release to the air inlet air accumulator 30 after experiment.
The second temperature sensor 32 and the second pressure sensor 33 are respectively used to detect the air inlet air accumulator
The gas temperature angle value detected is also transferred to controller by the gas temperature in 30 and pressure, the second temperature sensor 32,
The controller according to the gas temperature angle value received to the heat transferring medium flow in the fine tune temperature heat exchanger 39 into
The corresponding adjusting of row.Equally, second blowdown valve 31 is used to carry out blowdown to the air inlet air accumulator 30.
Below in conjunction with specific compressor to be measured to provided by the present invention for reciprocating compressor enclosed performance test system
Air inlet regulating device be described in further detail.Used compressor to be measured is large reciprocating compressor, setting
Admission pressure P1=5.4MPa, intake air temperature T1=25 DEG C, compressed media is air.
The high temperature and high pressure gas warp that compressor to be measured in large reciprocating compressor enclosed performance test system is discharged
Cross and be just back to air inlet regulating device after cooling, expenditure and pressure, flow measurement, be thus provided commonly for ensuring compressor to be measured into
Temperature degree and pressure are constant.
Gas working medium flows through the fine tune temperature heat exchanger 39 and is finely adjusted to suction temperature, and the controller is according to coming from
The gas temperature that the second temperature sensor 32 detects adjusts the heat transferring medium in the fine tune temperature heat exchanger 39
Flow, temperature is down to the setting intake air temperature T of compressor to be measured just after guarantee is cooling1=25 DEG C.
The admission pressure of compressor to be measured is constant common come real by the air inlet air accumulator 30 and the tonifying Qi component 1
Existing, the air inlet air accumulator 30, into row buffering, eliminates inspiratory airflow pulsation to incoming, ensures that the pressure of inspiration(Pi) of compressor to be measured is flat
Surely.Compressor to be measured is starting to stable operation stage, and exhaust side gas pressure improves, and volume reduces, thus need to system into
Row inflation.The maximum pressure at expulsion of the air supply compressor 23 in the tonifying Qi component 1 is set as 9MPa, tonifying Qi air-flow is through institute
It is stored temporarily in the tonifying Qi air accumulator 15 after stating 22 dry filter of device for drying and filtering.Tonifying Qi air-flow flows through the pressure reducing valve 11
Pressure reduction is to 5.4MPa (admission pressure of compressor to be measured) afterwards, to the air inlet air accumulator 30 namely closed circulation system into
Row inflation.In gas replenishment process, tonifying Qi air flow rate, the automatic tune are controlled by controlling the aperture of the automatic regulating valve 13
The monitoring index for saving the aperture regulation of valve 13 is the pressure of the air inlet air accumulator 30, the corresponding second pressure sensor 33
When detecting that the pressure of the air inlet air accumulator 30 is higher than setup pressure value (5.4MPa) of the air inlet air accumulator 30, control subtracts
Minor valve aperture, and then reduce flow of air supply, on the contrary increase valve opening, increase flow of air supply.By controlling the solenoid valve
12 aperture controls the keying of tonifying Qi pipeline, and the monitoring index that the solenoid valve 12 opens and closes is the pressure of the air inlet air accumulator 30
The pressure at expulsion of power and compressor to be measured, when both reaching setting value, then tonifying Qi is completed, and controls the closing of the solenoid valve 12
To terminate tonifying Qi process.Each component synergistic effect is to ensure to wait for pressure measurement in the air inlet air accumulator 30 and the tonifying Qi component 1
The admission pressure of contracting machine is stablized in setting admission pressure P1=5.4MPa.
When compressor to be measured is special working medium using working medium, first shut-off valve 21 need to be cut off, using described special
Working medium gas cylinder 25 is inflated closed circulation system.It is protected when intake air temperature, compress control method are with the above-mentioned test using air
It holds consistent.
It is described into controlled atmosphere provided by the present invention for the air inlet regulating device of reciprocating compressor enclosed performance test system
Regulating device avoids influence of the gas to system by the coordinated of tonifying Qi air accumulator, air inlet air accumulator and related valves,
It ensure that steady and system operation the safety of tonifying Qi, it is therefore prevented that the generation of system vacuum and superpressure improves systematic survey
Accuracy.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of air inlet regulating device for reciprocating compressor enclosed performance test system, it is characterised in that：
The air inlet regulating device includes tonifying Qi component (1) and air inlet temperature and pressure adjusting part (2), tonifying Qi component (1) connection
In the air inlet temperature and pressure adjusting part (2), the air inlet regulating device is separately connected by the air inlet temperature and pressure adjusting part (2)
In the gas exhaust piping and air inlet of compressor to be measured；
The tonifying Qi component (1) is with the air inlet temperature and pressure adjusting part (2) synergistic effect so that the air inlet of the compressor to be measured
Temperature and admission pressure are stablized in predetermined intake-air temperature and predetermined admission pressure；Wherein, the tonifying Qi component (1) is steady for providing
Fixed air source is to be inflated the air inlet temperature and pressure adjusting part (2) comprising be sequentially connected the air supply compressor (23) connect,
Tonifying Qi air accumulator (15) and control valve group, the tonifying Qi air accumulator (15) is for storing and buffering make-up gas；It is described into temperature
Pressure adjusting part (2) is for keeping the temperature of the compressor air inlet to be measured and pressure constant comprising air inlet air accumulator, it is described
The charge air flow that air inlet air accumulator is used to cut down air-breathing pulsation, stablizes compressor to be measured.
2. being used for the air inlet regulating device of reciprocating compressor enclosed performance test system, feature as described in claim 1
It is：The air inlet temperature and pressure adjusting part (2) further includes fine tune temperature heat exchanger (39), and the air inlet air accumulator (30) passes through institute
It states fine tune temperature heat exchanger (39) and is connected to the gas exhaust piping.
3. being used for the air inlet regulating device of reciprocating compressor enclosed performance test system, feature as described in claim 1
It is：The control valve group includes hand stop valve (10), pressure reducing valve (11), solenoid valve (12), automatic regulating valve (13) and stops
Return valve (14), it is the tonifying Qi air accumulator (15), the shut-off valve, the pressure reducing valve (11), the solenoid valve (12), described automatic
Regulating valve (13), the check-valves (14) and the air inlet air accumulator are sequentially connected and connect.
4. the air inlet adjustment as described in any one of claims 1-3 for reciprocating compressor enclosed performance test system fills
It sets, it is characterised in that：The tonifying Qi component (1) includes the first shut-off valve (21) and device for drying and filtering (22), the tonifying Qi compression
Machine (23) passes sequentially through the device for drying and filtering (22) and first shut-off valve (21) is connected to the tonifying Qi air accumulator (15).
5. being used for the air inlet regulating device of reciprocating compressor enclosed performance test system, feature as claimed in claim 4
It is：The tonifying Qi component (1) further includes the second shut-off valve (24) and special working medium tonifying Qi bottle (25), second shut-off valve
(24) one end is connected to the pipeline between the tonifying Qi air accumulator (15) and first shut-off valve (21), and the other end is connected to
The special working medium tonifying Qi bottle (25)；First shut-off valve (21) interlocks with second shut-off valve (24), i.e., and described first
Shut-off valve (21) second shut-off valve (24) or first shut-off valve when either second shut-off valve (24) is opened
(21) it closes.
6. the air inlet adjustment as described in any one of claims 1-3 for reciprocating compressor enclosed performance test system fills
It sets, it is characterised in that：The tonifying Qi component (1) further includes that the first temperature being separately positioned on the tonifying Qi air accumulator (15) passes
Sensor (17), first pressure sensor (18), the first safety valve (19) and the first pressure release electromagnetic valve (20)；First temperature passes
Sensor (17) and the first pressure sensor (18) be respectively used to detect gas temperature in the tonifying Qi air accumulator (15) and
Pressure；First safety valve (19) and first pressure release electromagnetic valve (20) are all connected to drain.
7. the air inlet adjustment as described in any one of claims 1-3 for reciprocating compressor enclosed performance test system fills
It sets, it is characterised in that：The air inlet temperature and pressure adjusting part (2) further includes being separately positioned on driving into soon on the air inlet air accumulator
Pneumoelectric magnet valve (34), anti-negative pressure of vacuum control valve (35), the second safety valve (37) and the second pressure release electromagnetic valve (38), it is described to open soon
Air inlet electromagnetic valve (34) and the anti-negative pressure of vacuum control valve (35) are separately positioned on the air inlet air accumulator to prevent tank body
Instantaneously it is emptied and causes danger；Second safety valve (37) and the second pressure release electromagnetic valve (38) are all connected to system drain,
It explodes for preventing tank body superpressure during tonifying Qi.
8. the air inlet adjustment as described in any one of claims 1-3 for reciprocating compressor enclosed performance test system fills
It sets, it is characterised in that：The air inlet temperature and pressure adjusting part (2) further includes the second row being separately positioned on the air inlet air accumulator
Dirty valve (31), second temperature sensor (32) and second pressure sensor (33), second blowdown valve (31), second temperature
Degree sensor (32) and the second pressure sensor (33) are respectively used to carry out blowdown, temperature to the air inlet air accumulator (30)
Detection and pressure detecting.
9. the air inlet adjustment as described in any one of claims 1-3 for reciprocating compressor enclosed performance test system fills
It sets, it is characterised in that：The air inlet temperature and pressure adjusting part (2) further includes rupture disk (36) and bump joint (40), the flange
Connector (40) is connected to the air inlet air accumulator (30), and rupture disk (36) setting is in the bump joint (40).
10. being used for the air inlet regulating device of reciprocating compressor enclosed performance test system, feature as claimed in claim 9
It is：The rupture disk (36) includes reversed anti-explosion holder (42), rupture disk (43) and isolation net (44), the rupture disk
(43) setting is described reversed between anti-explosion holder (42) and the isolation net (44), the isolation net (44) described in into
Gas air accumulator is arranged；The volume of the air inlet air accumulator (30) is 100 times of the compressor single maximal inspiratory capacity to be measured.
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| CN201810663734.6A CN108547763B (en) | 2018-06-25 | 2018-06-25 | Air inlet adjusting device for closed performance test system of reciprocating compressor |
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| CN201810663734.6A CN108547763B (en) | 2018-06-25 | 2018-06-25 | Air inlet adjusting device for closed performance test system of reciprocating compressor |
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