CN108253675A - Test header compressor joint detection guard method - Google Patents

Test header compressor joint detection guard method Download PDF

Info

Publication number
CN108253675A
CN108253675A CN201810061859.1A CN201810061859A CN108253675A CN 108253675 A CN108253675 A CN 108253675A CN 201810061859 A CN201810061859 A CN 201810061859A CN 108253675 A CN108253675 A CN 108253675A
Authority
CN
China
Prior art keywords
expansion valve
adjustment
electric expansion
major loop
temperature
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
Application number
CN201810061859.1A
Other languages
Chinese (zh)
Inventor
张波
李申
何渝泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Tomilo Environmental Testing Equipment Co Ltd
Original Assignee
Jiangsu Tomilo Environmental Testing Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Tomilo Environmental Testing Equipment Co Ltd filed Critical Jiangsu Tomilo Environmental Testing Equipment Co Ltd
Priority to CN201810061859.1A priority Critical patent/CN108253675A/en
Publication of CN108253675A publication Critical patent/CN108253675A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/28—Means for preventing liquid refrigerant entering into the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The present invention is experiment header compressor joint detection guard method, is adjusted including circuit electric expansion valve, and step is：Compressor exhaust temperature is acquired, is set as T0；Compressor pressure is acquired, is set as P0；Chamber actual temperature is acquired as target temperature, is set as：It is measured based on T0, P0, T1, adjusted value Z0 is obtained using PID arithmetic by controller；Controller carries out major loop electric expansion valve adjustment by adjusting value Z0, adjusts the aperture size of major loop electric expansion valve；After the aperture size of major loop electric expansion valve, the acquisition of temperature TO, pressure P0 and chamber actual temperature T1 are exhausted again, and the adjustment of the aperture size of major loop electric expansion valve is adjusted after the calculating acquisition of value Z0 and is adjusted again again, and then realize that detection adjusted value Z0 calculates the repetitive cycling of feedback adjustment major loop electric expansion valve opening width.

Description

Test header compressor joint detection guard method
Technical field
The present invention relates to testing equipment and testing equipment means of defence, specifically, it shows a kind of experiment header compressor connection Close detecting guard method.
Background technology
Core system of the cryogenic system as chamber, and compressor is cryogenic system " heart " element, not only from There is critically important status in performance, in cost for be also chamber the first element；So protection pole of compressor Its is important, once unexpected compressor damage occurs, can not only cause larger economic loss, equipment performance can not be protected Card, it is impossible to be continuing with.
Therefore, it is necessary to a kind of experiment header compressor joint detection guard method is provided to solve the above problems.
Invention content
The object of the present invention is to provide a kind of experiment header compressor joint detection guard methods.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of experiment header compressor joint detection guard method, including the adjustment of major loop electric expansion valve and auxiliary electron valve tune It is whole；
The adjustment of major loop electric expansion valve includes the following steps：
S1 compressor exhaust temperature) is acquired, is set as T0；
S2 compressor pressure) is acquired, is set as P0；
S3) acquisition chamber actual temperature is set as target temperature：
S4 it) is measured based on T0, P0, T1, adjusted value Z0 is obtained using PID arithmetic by controller；
S5）Controller carries out major loop electric expansion valve adjustment by adjusting value Z0, adjusts the aperture of major loop electric expansion valve Size；
S6）After the aperture size of major loop electric expansion valve, temperature TO, pressure P0, Yi Jishi are exhausted again The acquisition of tryoff actual temperature T1, and after the calculating for being adjusted value Z0 again obtains and to be adjusted major loop electronics again swollen The adjustment of the aperture size of swollen valve, and then realize detection-adjusted value Z0 calculating-feedback adjustment major loop electric expansion valve opening width Repetitive cycling.
Further, the auxiliary electron valve adjustment includes the following steps：
A1 compressor exhaust temperature) is acquired, is set as T01；
A2）It is measured based on T01, adjusted value Z1 is obtained using PID arithmetic by controller；
A3）Controller carries out auxiliary electron expansion valve adjustment by adjusting value Z1, and the aperture for adjusting auxiliary route electric expansion valve is big It is small；
A4）After the aperture size of auxiliary electron expansion valve, be exhausted the acquisition of temperature TO1 again, and again into The adjustment of the aperture size of auxiliary electron expansion valve is adjusted after the calculating of row adjusted value Z1 obtains and again, and then realizes inspection The repetitive cycling of survey-adjusted value Z1 calculating-feedback adjustment auxiliary electron expansion valve opening width.
Further, compressor exhaust temperature, compressor pressure, chamber actual temperature are integrated by chamber PLC carries out data acquisition.
Compared with prior art, the delivery temperature and pressure of the invention by acquiring compressor, while according to actual tests Case temperature control situation carries out the tune of the aperture size of the adjusted value progress major loop electric expansion valve of PID arithmetic meeting by controller It is whole, reduce compressor operating load；And controller can also judge the unlatching of subsidiary loop electric expansion valve according to delivery temperature Degree, it is ensured that thermal warning etc. in liquid hammer or temperature overheating generation will not occur because of supercooling and be unfavorable for working conditions of compressor for compressor Failure occur；Ensure that compressor works normally under stable operating mode always.
Description of the drawings
Fig. 1 is the step schematic diagram of the embodiment of the present invention.
Specific embodiment
Embodiment：
A kind of experiment header compressor joint detection guard method of present invention displaying is please referred to Fig.1, including major loop electric expansion valve Adjustment and the adjustment of auxiliary electron valve；
The adjustment of major loop electric expansion valve includes the following steps：
S1 compressor exhaust temperature) is acquired, is set as T0；
S2 compressor pressure) is acquired, is set as P0；
S3) acquisition chamber actual temperature is set as T1 as target temperature：
S4 it) is measured based on T0, P0, T1, adjusted value Z0 is obtained using PID arithmetic by controller；
S5）Controller carries out major loop electric expansion valve adjustment by adjusting value Z0, adjusts the aperture of major loop electric expansion valve Size；
S6）After the aperture size of major loop electric expansion valve, temperature TO, pressure P0, Yi Jishi are exhausted again The acquisition of tryoff actual temperature T1, and after the calculating for being adjusted value Z0 again obtains and to be adjusted major loop electronics again swollen The adjustment of the aperture size of swollen valve, and then realize detection-adjusted value Z0 calculating-feedback adjustment major loop electric expansion valve opening width Repetitive cycling.
The auxiliary electron valve adjustment includes the following steps：
A1 compressor exhaust temperature) is acquired, is set as T01；
A2）It is measured based on T01, adjusted value Z1 is obtained using PID arithmetic by controller；
A3）Controller carries out auxiliary electron expansion valve adjustment by adjusting value Z1, and the aperture for adjusting auxiliary route electric expansion valve is big It is small；
A4）After the aperture size of auxiliary electron expansion valve, be exhausted the acquisition of temperature TO1 again, and again into The adjustment of the aperture size of auxiliary electron expansion valve is adjusted after the calculating of row adjusted value Z1 obtains and again, and then realizes inspection The repetitive cycling of survey-adjusted value Z1 calculating-feedback adjustment auxiliary electron expansion valve opening width.
Compressor exhaust temperature, compressor pressure, chamber actual temperature carry out data by the PLC that chamber integrates Acquisition.
Compared with prior art, the delivery temperature and pressure of the invention by acquiring compressor, while according to actual tests Case temperature control situation carries out the tune of the aperture size of the adjusted value progress major loop electric expansion valve of PID arithmetic meeting by controller It is whole, reduce compressor operating load；And controller can also judge the unlatching of subsidiary loop electric expansion valve according to delivery temperature Degree, it is ensured that thermal warning etc. in liquid hammer or temperature overheating generation will not occur because of supercooling and be unfavorable for working conditions of compressor for compressor Failure occur；Ensure that compressor works normally under stable operating mode always.
Above is only some embodiments of the present invention.For those of ordinary skill in the art, it is not departing from Under the premise of the invention is conceived, various modifications and improvements can be made, these belong to protection scope of the present invention.

Claims (3)

1. a kind of experiment header compressor joint detection guard method, it is characterised in that：
Including the adjustment of major loop electric expansion valve and the adjustment of auxiliary electron valve；
The adjustment of major loop electric expansion valve includes the following steps：
S1 compressor exhaust temperature) is acquired, is set as T0；
S2 compressor pressure) is acquired, is set as P0；
S3) acquisition chamber actual temperature is set as target temperature：
S4 it) is measured based on T0, P0, T1, adjusted value Z0 is obtained using PID arithmetic by controller；
S5）Controller carries out major loop electric expansion valve adjustment by adjusting value Z0, adjusts the aperture of major loop electric expansion valve Size；
S6）After the aperture size of major loop electric expansion valve, temperature TO, pressure P0, Yi Jishi are exhausted again The acquisition of tryoff actual temperature T1, and after the calculating for being adjusted value Z0 again obtains and to be adjusted major loop electronics again swollen The adjustment of the aperture size of swollen valve, and then realize detection-adjusted value Z0 calculating-feedback adjustment major loop electric expansion valve opening width Repetitive cycling.
2. a kind of experiment header compressor joint detection guard method according to claim 1, it is characterised in that：The auxiliary Electronic valve adjustment includes the following steps：
A1 compressor exhaust temperature) is acquired, is set as T01；
A2）It is measured based on T01, adjusted value Z1 is obtained using PID arithmetic by controller；
A3）Controller carries out auxiliary electron expansion valve adjustment by adjusting value Z1, and the aperture for adjusting auxiliary route electric expansion valve is big It is small；
A4）After the aperture size of auxiliary electron expansion valve, be exhausted the acquisition of temperature TO1 again, and again into The adjustment of the aperture size of auxiliary electron expansion valve is adjusted after the calculating of row adjusted value Z1 obtains and again, and then realizes inspection The repetitive cycling of survey-adjusted value Z1 calculating-feedback adjustment auxiliary electron expansion valve opening width.
3. a kind of experiment header compressor joint detection guard method according to claim 1 or 2, it is characterised in that：Compression Machine delivery temperature, compressor pressure, chamber actual temperature carry out data acquisition by the PLC that chamber integrates.
CN201810061859.1A 2018-01-23 2018-01-23 Test header compressor joint detection guard method Pending CN108253675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810061859.1A CN108253675A (en) 2018-01-23 2018-01-23 Test header compressor joint detection guard method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810061859.1A CN108253675A (en) 2018-01-23 2018-01-23 Test header compressor joint detection guard method

Publications (1)

Publication Number Publication Date
CN108253675A true CN108253675A (en) 2018-07-06

Family

ID=62741781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810061859.1A Pending CN108253675A (en) 2018-01-23 2018-01-23 Test header compressor joint detection guard method

Country Status (1)

Country Link
CN (1) CN108253675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123823A (en) * 2019-12-16 2020-05-08 中国科学院工程热物理研究所 Measurement and control system for indirect cooling compressor test bed

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628201A (en) * 1995-04-03 1997-05-13 Copeland Corporation Heating and cooling system with variable capacity compressor
CN200986353Y (en) * 2006-11-08 2007-12-05 江阴精亚空调工程有限公司 Device for controlling amount of feeding liquid of full liquid type water-cooling screw rod water chilling unit
CN105509257A (en) * 2016-01-14 2016-04-20 广东美的暖通设备有限公司 Air conditioner system and detection method of accumulated liquid failure of four-way valve of air conditioner system
CN106288140A (en) * 2016-07-25 2017-01-04 珠海格力电器股份有限公司 Air-conditioning and control method, device and system
CN106440251A (en) * 2016-11-04 2017-02-22 珠海格力电器股份有限公司 Variable-frequency air conditioning system with large refrigeration capacity, air conditioner and control method for throttling device of variable-frequency air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628201A (en) * 1995-04-03 1997-05-13 Copeland Corporation Heating and cooling system with variable capacity compressor
CN200986353Y (en) * 2006-11-08 2007-12-05 江阴精亚空调工程有限公司 Device for controlling amount of feeding liquid of full liquid type water-cooling screw rod water chilling unit
CN105509257A (en) * 2016-01-14 2016-04-20 广东美的暖通设备有限公司 Air conditioner system and detection method of accumulated liquid failure of four-way valve of air conditioner system
CN106288140A (en) * 2016-07-25 2017-01-04 珠海格力电器股份有限公司 Air-conditioning and control method, device and system
CN106440251A (en) * 2016-11-04 2017-02-22 珠海格力电器股份有限公司 Variable-frequency air conditioning system with large refrigeration capacity, air conditioner and control method for throttling device of variable-frequency air conditioning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
时阳: "《制冷技术》", 30 June 2015, 中国轻工业出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123823A (en) * 2019-12-16 2020-05-08 中国科学院工程热物理研究所 Measurement and control system for indirect cooling compressor test bed

Similar Documents

Publication Publication Date Title
CN111023435B (en) Control method and system for expansion valve of air conditioner and air conditioner
US9605893B2 (en) Heat source device
US8833089B2 (en) Plasma processing apparatus and maintenance method therefor
CN106440582B (en) The control method of water-cooling screw rod unit
CN109373501B (en) A kind of control method of electric expansion valve, device and multi-line system
US8707709B2 (en) Systems and methods for controlling compressor extraction cooling
CN105466094B (en) Liquid level detection system, the air-conditioning system and liquid level controlling method with the system
US20160377333A1 (en) Components cross-mapping in a refrigeration system
EP1850354A1 (en) Circulation cooling system for cryogenic cable
CN103256767B (en) Method for controlling evaporating temperature of water-side heat exchanger of air conditioner and air conditioner
JP2015045487A (en) Air conditioner
CN109855251A (en) Discharge superheat modification method, device, computer product and the air-conditioning of air-conditioning
CN109282420A (en) Amount of refrigerant detection method, device, system and the air-conditioning of temperature control equipment
CN107560761A (en) The temperature sensor fails judgment means and method of heat pump, heat pump
CN108253675A (en) Test header compressor joint detection guard method
CN103575005B (en) The control method of compressor exhaust temperature and device
CN109927504A (en) Control method for cabin and battery
CN103671050B (en) The controlling method of compressor liquid-spraying, device and air-conditioning system
US20210302084A1 (en) Control device, refrigerator, control method, and abnormality detection method
CN104566830A (en) Method for detecting quantity of refrigerant in multiple online systems
JP2009115325A (en) Cooling device
CN203687479U (en) Monitoring device for abnormal throttling of refrigerant in air conditioner and air conditioner
CN108627711B (en) Fault detection system and method for refrigeration system and refrigeration system
SA517390600B1 (en) Method for cooling a turbo machine
CN106969563A (en) Compression set, temprature control method and air conditioner with second vapor injection

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180706