CN105697354A - Method for determining locking temperature of pump elevated temperature test - Google Patents
Method for determining locking temperature of pump elevated temperature test Download PDFInfo
- Publication number
- CN105697354A CN105697354A CN201610150158.6A CN201610150158A CN105697354A CN 105697354 A CN105697354 A CN 105697354A CN 201610150158 A CN201610150158 A CN 201610150158A CN 105697354 A CN105697354 A CN 105697354A
- Authority
- CN
- China
- Prior art keywords
- temperature
- pump housing
- locking
- pump
- calorstat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Provided is a method for determining the locking temperature of a pump elevated temperature test. The pump elevated temperature test is the basic verification test of design of a pump body, and whether each interval is the optimal interval or not when the pump body is in a working state is determined by determining the locking temperature and unlocking temperature of the pump body. The method comprises the steps that 1, the rotary type compressor pump body is assembled, and all the assembly intervals are adjusted to be the minimum interval stipulated in a drawing; 2, the assembled pump body is rotated, and whether the pump body can normally operate or not is determined; 3, the pump body is put into a calorstat, and the locking temperature of the pump body is determined; 4, the unlocking temperature of the pump body is determined; and 5, disassembly is conducted after the pump body resets to the normal temperature, and the parameters of the pump body are determined. The pump elevated temperature test is used for determining the intervals of the compressor pump body, and the method is used for determining the locking temperature of the pump elevated temperature test.
Description
Technical field: the present invention relates to a kind of rotary compressor fundamental test method
Background technology:
Rotary compressor production technology comes from Japan, and the pump housing includes rolling-rotor, cylinder, bent axle, metal (upper, blade, spring。Work process is that motor passes through bent axle to power, the off-centre operation driving eccentric crankshaft drives cylindrical rolling-rotor to rotate in cylinder, blade is pressed on rolling-rotor by the spring push-tight side on top, the left side of rolling-rotor and right side are divided into suction muffler and discharge chamber, right side suction muffler correspondence position cylinder there is air entry, the bearing of left side discharge chamber correspondence position there is air vent, cylinder has aerofluxus otch。The front and back of cylinder are passed through bearing seal, the major axis of bent axle and short axle and are supported respectively through metal (upper, and major axis and the rotor of bent axle are held tightly, and the rotating torque being subject to motor drives。
Rotary type compressor pump body provided therewith is equivalent to its stomach, is the vitals realizing compressor work。The pump housing all can prolong fit-up gap in operating compression gas process to be revealed, and gap is more big, and leakage rate is more big。The coefficient of performance of the more little compressor in gap and refrigerating capacity are more high within the specific limits, the pump housing is cold conditions in assembling process, and be hot in operation process, compressor pump body temperature in the course of the work is about 60-115 degree, the difference to some extent depending on the working condition of compressor is different。Therefore confirm compressor operating time the pump housing optimum gap, confirm cold conditions assembling time gap, make the pump housing after intensification be work under pump housing optimum gap condition be exactly compressor pump design technical essential。
Pump elevated temperature test is the basic checking test of pump body design, pump elevated temperature test is exactly assemble the pump housing in the cold state, in heated up by calorstat simulation pump housing actual work temperature and condition, whether each gap when confirming pump housing duty by the locking temperature and unlocking temperature confirming the pump housing is optimum gap。It is long to there is test period in traditional pump elevated temperature test, temperature confirms the shortcomings such as inaccurate, owing to there being radial canal inside calorstat, easily lock generally proximate to the inboard pump housing, and not easily lock near the pump housing pole of door side, the pump housing takes out from calorstat, can be influenced by cool when rotating, with hands, the state being confirmed whether locking, if being placed again into calorstat to unlock, sometimes being difficult to confirmation is suffer from cold outside, return to non-uniform temperature in calorstat unlocked still stable at such a temperature after unlock, it is exactly that this confirmation result can be subject to ambient temperature and the impact of operator's level, and have sizable inaccuracy。
Summary of the invention:
The method confirming pump elevated temperature test locking temperature, the first step: assembling rotary type compressor pump body provided therewith, and all fit-up gaps are adjusted on drawing the minimum clearance of regulation；Second step: the pump housing described in having assembled is rotated, confirms whether the described pump housing can run well；Calorstat put into by the described pump housing by the 3rd step, confirms pump housing locking temperature；4th step: confirm pump housing unlocking temperature；5th step: wait the described pump housing to disintegrate after being returned to room temperature, confirms described pump housing parameter。
The method confirming pump elevated temperature test locking temperature, described confirmation pump housing locking temperature includes: the pump housing is put into calorstat dorsal part corner, and head is relative with calorstat heat-generating pipe towards lower bearing side, side, and bent axle is put in the middle of calorstat；Calorstat initial temperature being set as 90 degree, confirms whether the pump housing locks after stablizing 4 hours, after reducing by 5 degree of temperature stabilizations such as locking, 2 as a child confirmed whether the pump housing unlocks, and is unlocking temperature as unlocked this temperature, adds 5 degree by being locked temperature；As do not unlock drop again 5 degree stablize two hours be confirmed whether unlock, be repeated up to unlock；As initial temperature is not locked, the 5 degree of waits that heat up see whether lock for 2 hours, repeat to heat up 5 degree until locking as do not locked。
The method confirming pump elevated temperature test locking temperature, the maximum gauge A of the assembling pre-test pump housing, square being multiplied by A 3.14 and be multiplied to the distance of pump housing upper bearing (metal) upper surface with pump housing lower bearing lower surface with A divided by 2, in the long-pending addition being multiplied by 3.14, calculates the equivalent scale area obtaining the pump housing；Described pump housing initial temperature is set as 180 degree, confirm whether the pump housing locks after stablizing 4 hours, test such as unlocked tight knot bundle or calorstat temperature is increased to 240 degree and stablize 4 hours referring again to whether the pump housing locks, as locked, the pump housing is taken out from calorstat, utilize the equivalent scale area into the aforementioned pump housing, the temperature stable with in calorstat, according to indoor temperature and humidity, the result that the specific heat of employing indoor air velocity 5 meter per second calculating heat exchange and pump housing steel and pump housing quality employing thermal conduction study simulation method obtain is, initial temperature 240 degree, when A value is 12.1 centimetres, temperature in calorstat deducts the unlocked time after the pump housing takes out from calorstat and is multiplied by 10 probable values obtaining pump housing unblock and locking temperature；This probable value is initial temperature, adopts as above method to confirm locking and the unlocking temperature of the pump housing。
The method confirming pump elevated temperature test locking temperature, when the maximum gauge measuring the pump housing is not 12.1 centimetres, computational methods with reference to claim 3 carry out equal proportion correction, calculate and confirm that pump housing locking temperature carries out confirming pump housing locking temperature and unlocking temperature in the method described with reference to claim 1 or 3。
The beneficial effect of this method:
1. this method adopts and the pump housing is first heated to the temperature being certain to locking, again the pump housing is taken out from calorstat, by measuring pump housing surface area, pump housing quality, the parameter simulations such as heat transfer coefficient calculate the temperature lowering curve of the pump housing, the time length unlocked after being taken out from calorstat by the measurement pump housing calculates pump housing locking and unlocking temperature by pump housing temperature lowering curve, again through this unblock of Standard method test tested and locking temperature。This method operational approach is simple, saves substantial amounts of progressively intensification heat balance test time and the loaded down with trivial details test period repeatedly confirmed。
2. this method obtains being approximately the temperature lowering curve of 1 time by analysis of Heat Transfer and verification experimental verification, utilizes temperature lowering curve to have only to measure temperature fall time and can be obtained by pump housing locking and unlocking temperature。Simple to operate, confirm that the process middle pump body of temperature has only to after reaching constant temperature take out 1 time from calorstat。Owing to the temperature of the now pump housing must be the temperature within calorstat, eliminate original test and confirm that pump housing locking and unlocking temperature need repeatedly to be taken out from calorstat by the pump housing, the step whether manual confirmation locks, improve accuracy rate and the credibility of test, reduce the professional and dangerous of test operation。
3. this method passes through analysis of Heat Transfer and verification experimental verification, improves the pump housing locking of conventional pump elevated temperature test confirmation and the accuracy of unlocking temperature。Traditional experiment is owing to confirming that 1 temperature spot needs at least 2 hours, and test accuracy is not high, and end product is to be accurate to about 10 degree, and locking and unblock temperature accuracy bring up to 2 degree to adopt this method to say。Being difficult within changing traditional experiment 1 day, cooling intensification makes the deformation after pump housing generation flatulence of heat type and shrinkage, etc. shortcoming。Have only to after calculating confirm result by standard test method, decrease the pump housing and repeatedly heat and suffer from cold to testing the inaccurate factor brought, stringency of test is risen to 2 degree simultaneously。
Detailed description of the invention:
Embodiment 1:
A kind of method confirming pump elevated temperature test locking temperature, the first step: assembling rotary type compressor pump body provided therewith, and all fit-up gaps are adjusted on drawing the minimum clearance of regulation；Second step: the pump housing described in having assembled is rotated, confirms whether the described pump housing can run well；Calorstat put into by the described pump housing by the 3rd step, confirms pump housing locking temperature；4th step: confirm pump housing unlocking temperature；5th step: wait the described pump housing to disintegrate after being returned to room temperature, confirms described pump housing parameter。
Embodiment 2:
The method confirming pump elevated temperature test locking temperature, described confirmation pump housing locking temperature includes: the pump housing is put into calorstat dorsal part corner, and head is relative with calorstat heat-generating pipe towards lower bearing side, side, and bent axle is put in the middle of calorstat；Calorstat initial temperature being set as 90 degree, confirms whether the pump housing locks after stablizing 4 hours, after reducing by 5 degree of temperature stabilizations such as locking, 2 as a child confirmed whether the pump housing unlocks, and is unlocking temperature as unlocked this temperature, adds 5 degree by being locked temperature；As do not unlock drop again 5 degree stablize two hours be confirmed whether unlock, be repeated up to unlock；As initial temperature is not locked, the 5 degree of waits that heat up see whether lock for 2 hours, repeat to heat up 5 degree until locking as do not locked。
Embodiment 3:
The method confirming pump elevated temperature test locking temperature,: the maximum gauge A of the assembling pre-test pump housing, square being multiplied by A 3.14 and be multiplied to the distance of pump housing upper bearing (metal) upper surface with pump housing lower bearing lower surface with A divided by 2, in the long-pending addition being multiplied by 3.14, calculates the equivalent scale area obtaining the pump housing；Described pump housing initial temperature is set as 180 degree, confirm whether the pump housing locks after stablizing 4 hours, test such as unlocked tight knot bundle or calorstat temperature is increased to 240 degree and stablize 4 hours referring again to whether the pump housing locks, as locked, the pump housing is taken out from calorstat, utilize the equivalent scale area into the aforementioned pump housing, the temperature stable with in calorstat, according to indoor temperature and humidity, the result that the specific heat of employing indoor air velocity 5 meter per second calculating heat exchange and pump housing steel and pump housing quality employing thermal conduction study simulation method obtain is, initial temperature 240 degree, when A value is 12.1 centimetres, temperature in calorstat deducts the unlocked time after the pump housing takes out from calorstat and is multiplied by 10 probable values obtaining pump housing unblock and locking temperature；This probable value is initial temperature, adopts as above method to confirm locking and the unlocking temperature of the pump housing。
Embodiment 4:
The method confirming pump elevated temperature test locking temperature, when the maximum gauge measuring the pump housing is not 12.1 centimetres, computational methods with reference to claim 3 carry out equal proportion correction, calculate and confirm that pump housing locking temperature carries out confirming pump housing locking temperature and unlocking temperature in the method described with reference to embodiment 1 or 3。Such as when pump housing maximum gauge is 11.9 centimetres, weight pump housing quality, this pump housing parameter being brought into and be calculated, the result substantially all unanimously therefore calculated except size due to rotary type compressor pump body provided therewith structure has the general property of can refer to for the pump housing pump elevated temperature test of each series。
Claims (4)
1. the method confirming pump elevated temperature test locking temperature, is characterized in that: the first step: assembling rotary type compressor pump body provided therewith, and all fit-up gaps are adjusted on drawing the minimum clearance of regulation；Second step: the pump housing described in having assembled is rotated, confirms whether the described pump housing can run well；Calorstat put into by the described pump housing by the 3rd step, confirms pump housing locking temperature；4th step: confirm pump housing unlocking temperature；5th step: wait the described pump housing to disintegrate after being returned to room temperature, confirms described pump housing parameter。
2. the method for confirmation pump elevated temperature test according to claim 1 locking temperature, it is characterized in that: described confirmation pump housing locking temperature includes: the pump housing is put into calorstat dorsal part corner, head is relative with calorstat heat-generating pipe towards lower bearing side, side, and bent axle is put in the middle of calorstat；Calorstat initial temperature being set as 90 degree, confirms whether the pump housing locks after stablizing 4 hours, after reducing by 5 degree of temperature stabilizations such as locking, 2 as a child confirmed whether the pump housing unlocks, and is unlocking temperature as unlocked this temperature, adds 5 degree by being locked temperature；As do not unlock drop again 5 degree stablize two hours be confirmed whether unlock, be repeated up to unlock；As initial temperature is not locked, the 5 degree of waits that heat up see whether lock for 2 hours, repeat to heat up 5 degree until locking as do not locked。
3. the method for confirmation pump elevated temperature test according to claim 1 locking temperature, it is characterized in that: the maximum gauge A of the assembling pre-test pump housing, square being multiplied by A 3.14 and be multiplied to the distance of pump housing upper bearing (metal) upper surface with pump housing lower bearing lower surface with A divided by 2, in the long-pending addition being multiplied by 3.14, calculate the equivalent scale area obtaining the pump housing；Described pump housing initial temperature is set as 180 degree, confirm whether the pump housing locks after stablizing 4 hours, test such as unlocked tight knot bundle or calorstat temperature is increased to 240 degree and stablize 4 hours referring again to whether the pump housing locks, as locked, the pump housing is taken out from calorstat, utilize the equivalent scale area into the aforementioned pump housing, the temperature stable with in calorstat, according to indoor temperature and humidity, the result that the specific heat of employing indoor air velocity 5 meter per second calculating heat exchange and pump housing steel and pump housing quality employing thermal conduction study simulation method obtain is, initial temperature 240 degree, when A value is 12.1 centimetres, temperature in calorstat deducts the unlocked time after the pump housing takes out from calorstat and is multiplied by 10 probable values obtaining pump housing unblock and locking temperature；This probable value is initial temperature, adopts as above method to confirm locking and the unlocking temperature of the pump housing。
4. the method confirming pump elevated temperature test locking temperature according to claim 1 or 3, it is characterized in that: when the maximum gauge measuring the pump housing is not 12.1 centimetres, computational methods with reference to claim 3 carry out equal proportion correction, calculate and confirm that pump housing locking temperature carries out confirming pump housing locking temperature and unlocking temperature in the method described with reference to claim 1 or 3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150158.6A CN105697354A (en) | 2016-03-16 | 2016-03-16 | Method for determining locking temperature of pump elevated temperature test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150158.6A CN105697354A (en) | 2016-03-16 | 2016-03-16 | Method for determining locking temperature of pump elevated temperature test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697354A true CN105697354A (en) | 2016-06-22 |
Family
ID=56220678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610150158.6A Pending CN105697354A (en) | 2016-03-16 | 2016-03-16 | Method for determining locking temperature of pump elevated temperature test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697354A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572087A (en) * | 2017-03-08 | 2018-09-25 | 研祥智能科技股份有限公司 | The parameter test method and its system of temperature test chamber |
-
2016
- 2016-03-16 CN CN201610150158.6A patent/CN105697354A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572087A (en) * | 2017-03-08 | 2018-09-25 | 研祥智能科技股份有限公司 | The parameter test method and its system of temperature test chamber |
| CN108572087B (en) * | 2017-03-08 | 2022-05-20 | 研祥智能科技股份有限公司 | Parameter testing method and system of temperature test box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866061B (en) | A kind of blast furnace crucible corrosion deviation monitoring method | |
| US11885693B2 (en) | Method for measuring heat dissipation of electromechanical device | |
| CN203770116U (en) | Performance testing device for carbon dioxide trans-critical compressor | |
| CN106441472A (en) | Method for temperature drift inhibition of constant power type thermal type gas flowmeter | |
| CN103884220B (en) | Be applicable to the oval fin with circular hole of fin tube type refrigerated heat exchanger under frozen condition | |
| CN105697354A (en) | Method for determining locking temperature of pump elevated temperature test | |
| CN104483269A (en) | Optical cavity for testing natural gas absorption spectrum | |
| CN109186815A (en) | A kind of low temperature High Mach number detecting probe temperature calibration device | |
| CN104361147A (en) | Design method of counter flow cooling tower | |
| CN202204791U (en) | Heat transfer coefficient determining device for heat exchange tube of heating furnace | |
| US20090025482A1 (en) | Pressure sensor | |
| CN207300178U (en) | A kind of laser thickness gauge | |
| CN105445028A (en) | Measurement and calculation method for turbine heat rate | |
| CN105864017A (en) | Optimal clearance determination method for rotary compressor pump body in working state | |
| CN110108595B (en) | Humidity monitoring device adopting gas-steam mixing method | |
| CN108981969B (en) | Device and method for testing air friction heat generation capacity of geotechnical centrifuge in vacuum environment | |
| CN110738011A (en) | Temperature evaluation method and system for structural components in engines | |
| JP4231024B2 (en) | Absorption diagnosis method and apparatus for absorption refrigerator | |
| CN115541281A (en) | Energy efficiency test board of electric water heater | |
| Sánta et al. | Investigation of the Pressure Drop in the Shell Side of the Evaporator | |
| Tyurin et al. | Study of oil free scroll vacuum pump characteristics: Comparison of experimental and calculated data | |
| CN106894853B (en) | Condensing turbine cold end diagnosis of energy saving method | |
| CN106556479B (en) | A kind of heat loss survey device and its heat loss survey method | |
| CN203518714U (en) | Gland steam cooler | |
| CN111929065A (en) | Method for measuring thermal economy of driving steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |