CN108223498A - A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism - Google Patents
A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism Download PDFInfo
- Publication number
- CN108223498A CN108223498A CN201810211307.4A CN201810211307A CN108223498A CN 108223498 A CN108223498 A CN 108223498A CN 201810211307 A CN201810211307 A CN 201810211307A CN 108223498 A CN108223498 A CN 108223498A
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- China
- Prior art keywords
- hydraulic oil
- hydraulic
- executing agency
- circulating pump
- heat exchanger
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/16—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by adjusting the capacity of dead spaces of working chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism, including the executing agency with heat exchanger components, the first hydraulic cavities and the second hydraulic cavities of executing agency with heat exchanger components are connected respectively by pipeline with hydraulic oil container, the hydraulic oil container is equipped with circulating pump inlet port and circulating pump oil return opening, circulating pump inlet port is connected by circulating pump, valve and pipeline with the heat transferring medium import of heat exchanger components, and the heat transferring medium outlet of heat exchanger components is connected by valve and pipeline with the circulating pump oil return opening of hydraulic oil container.The present invention is using the above scheme, it is simple in structure, reasonable design, electric energy or thermal energy that heating hydraulic oil expends have been saved, while executing agency has been cooled down, has reduced the power consumption of compressor, a large amount of recirculated cooling water can also be saved, the manufacture cost and operating cost of executing agency are reduced, eliminates corrosion of the chlorion to executing agency, extends the service life of executing agency.
Description
Technical field：
The present invention relates to a kind of energy conservation of compressor change system, more specifically it relates to which a kind of cool down clearance using hydraulic oil
The hydraulic control system of adjustment actuating mechanism.
Background technology：
Clearance adjusting is one of reciprocating compressor tolerance adjusting method, this method by original compresser cylinder cylinder cap more
Clearance regulating system executing agency is changed to, the piston component and lock of clearance regulating system executing agency are driven by modes such as hydraulic pressure
It is tight in place, to change the size of compresser cylinder clearance volume, so as to obtain the compressor tolerance for meeting technological requirement,
Realize maximum energy conservation of compressor target.
According to thermodynamic principles, compresser cylinder temperature is reduced, the isothermal efficiency of compressor can be improved, reduces compressor
Power consumption.Clearance regulating system executing agency is such as not provided with heat exchanger components, then the temperature of medium can reach 50 DEG C in clearance cylinder
~120 DEG C, power consumption increases；Clearance regulating system executing agency such as sets heat exchanger components, can reduce executing agency's clearance cylinder
Temperature, and then reduce compresser cylinder temperature.
The hydraulic fluid temperature requirement control of executing agency is driven in clearance regulating system between 30 DEG C~55 DEG C, at this time liquid
Viscosity, lubricity and the wearability of pressure oil are in optimum state, and therefore, hydraulic fluid temperature is needed when being less than 30 DEG C to hydraulic oil
It is heated, extra consumption electric energy or thermal energy.
At present, the cooling medium of reciprocating compressor redundant gap regulating system executing agency is recirculated cooling water, and cycle is cold
But the water conditioning process of water is complicated, cost is higher, and usually carried in cooling water the chlorine of etching apparatus and process pipelines from
Son etc., therefore, material, manufacturing process to executing agency etc. propose very high requirement, and manufacturing cost is high, and causes
The waste of the electric energy and thermal energy of a part, it is difficult to meet the requirement of power-saving industrial production.
Invention content：
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of clearance adjustment actuating mechanism is cooled down using hydraulic oil
Hydraulic control system, it is simple in structure, reasonable design, and the partial heat of clearance adjustment actuating mechanism clearance cylinder is transmitted to
Hydraulic oil container both can ensure that the hydraulic fluid temperature for driving executing agency is controlled between 30 DEG C~55 DEG C for heating hydraulic oil,
Electric energy or thermal energy that heating hydraulic oil expends are saved, moreover it is possible to which the temperature of clearance adjustment actuating mechanism clearance cylinder is down to 50
DEG C hereinafter, meet apparatus and process service requirement, compresser cylinder temperature is reduced, reduces compressor power consumption, can also be saved a large amount of
Recirculated cooling water, reduce the manufacture cost and operating cost of executing agency, eliminate corrosion of the chlorion to executing agency, extend
The service life of executing agency, it is applied widely, solve problems of the prior art.
The used to solve above-mentioned technical problem technical solution of the present invention is：
A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism, including the execution with heat exchanger components
Mechanism, the first hydraulic cavities and the second hydraulic cavities of the executing agency with heat exchanger components are connected respectively by pipeline with hydraulic oil container,
The hydraulic oil container is equipped with circulating pump inlet port and circulating pump oil return opening, and circulating pump inlet port passes through circulating pump, valve and pipe
Road is connected with the heat transferring medium import of heat exchanger components, and the heat transferring medium outlet of heat exchanger components passes through valve and pipeline and hydraulic oil container
Circulating pump oil return opening be connected, in hydraulic oil container, heat exchanger components and pipeline be equipped with circulation hydraulic oil, in hydraulic oil container
Interior to be equipped with hydraulic fluid temperature switch or sensor, hydraulic fluid temperature switch or sensor are connected by electric signal with circulating pump.
Preferably, the executing agency with heat exchanger components is external-cooling type executing agency or inner-cooled executing agency.
Preferably, the circulating pump inlet port is set at the top of hydraulic oil container, and circulating pump oil suction is equipped in circulating pump inlet port
Pipe, the circulating pump oil return opening are set on one side lower part of hydraulic oil container.
Preferably, the circulating pump inlet port lower end is equipped with circulating pump oil absorption filter.
Preferably, the intermediate bulkhead being vertically arranged is equipped on oil tank bottom plate.
Preferably, executing agency's heat transferring medium inlet valve is equipped in the heat transferring medium import of heat exchanger components, in heat exchanger components
Heat transferring medium outlet be equipped with executing agency's heat transferring medium outlet valve.
Preferably, pressure sensor is equipped between circulating pump and executing agency's heat transferring medium inlet valve.
Preferably, it is equipped with execution machine between the outlet of the heat transferring medium of heat exchanger components and executing agency's heat transferring medium outlet valve
Structure heat exchange medium temperature switchs or sensor.
The present invention using the above scheme, provides a kind of hydraulic control using hydraulic oil cooling clearance adjustment actuating mechanism
System, it is simple in structure, reasonable design, and hydraulic oil is driven by clearance adjustment actuating mechanism clearance cylinder by the circulating pump added
Partial heat is transmitted to hydraulic oil container for heating hydraulic oil, passes through the temperature detect switch (TDS) on hydraulic oil container or sensor control loop
Start and stop of pump or to motor frequency modulation, make hydraulic fluid temperature be maintained in preference temperature scope for a long time, solve driving executing agency
Hydraulic oil the problems of different trade mark hydraulic oil is replaced in Various Seasonal, saved electric energy or heat that heating hydraulic oil expends
Can, while executing agency is cooled down, the power consumption of compressor is reduced, a large amount of recirculated cooling water can also be saved, is reduced
The manufacture cost and operating cost of executing agency eliminate corrosion of the chlorion to executing agency, and extend executing agency uses the longevity
Life.
Description of the drawings：
Fig. 1 is the principle of the present invention schematic diagram；
Fig. 2 is the structure diagram of the embodiment of the present invention 1；
Fig. 3 is the structure diagram of the embodiment of the present invention 2；
Fig. 4 is the structure diagram of hydraulic oil container；
Fig. 5 is the structure diagram of external-cooling type executing agency；
Fig. 6 is the structure diagram of inner-cooled executing agency.
In figure, 1, circulating pump inlet port, 2, hydraulic fluid temperature switch or sensor, 3, hydraulic oil liquid bit switch or sensing
Device, 4, circulating pump, 5, pressure sensor, 6, executing agency's heat transferring medium inlet valve, 7, executing agency's displacement sensor, 8, band changes
The executing agency of thermal part, 9, executing agency heat exchange medium temperature switch or sensor, 10, the outlet of executing agency's heat transferring medium
Valve, 11, hydraulic oil container, 12, external-cooling type executing agency, 13, inner-cooled executing agency, 11-1, fuel tank lower margin, 11-2, oil tank bottom
Plate, 11-3, bleeder plug, 11-4, intermediate bulkhead, 11-5, oil return pipe, 11-6, air filter, 11-7, tank cover, 11-8,
Hydraulic pressure oil pump suction tube, 11-9, liquid level thermometer, 11-10, cycle oil pump suction tube, 11-11, circulating pump oil absorption filter, 11-12,
12-2, hydraulic pump oil absorption filter, 11-13, circulating pump oil return opening, 11-14, fuel tank side board, 12-1, heat transferring medium outlet A are held
Row mechanism shell A, 12-3, oily piston seal assembly A, 12-4, piston rod seal pack A, 12-5, the first hydraulic cavities A, 12-6,
Oily piston A, 12-7, the second hydraulic cavities A, 12-8, leakage monitoring chamber A, 12-9, heat transferring medium import A, 12-10, clearance volume chamber
A, 12-11, clearance piston seal component A, 12-12, clearance piston A, 12-13, piston rod A, 12-14, heat exchange jacket, 12-15,
Mounting flange A, 12-16, heat transferring medium chamber A, 13-1, clearance piston seal component B, 13-2, heat transferring medium outlet B, 13-3, work
Rod seal pack B, 13-4, oily piston B, 13-5, the first hydraulic cavities B, 13-6, the second hydraulic cavities B, 13-7, oily piston sealing
Component B, 13-8, executing agency shell B, 13-9, heat transferring medium import B, 13-10, leakage monitoring inner cylinder seal assembly, 13-11,
Leakage monitoring intracavitary cylinder, 13-12, clearance volume chamber B, 13-13, leakage monitoring chamber B, 13-14, clearance piston B, 13-15, piston
Bar B, 13-16, heat transferring medium chamber B, 13-17, mounting flange B.
Specific embodiment：
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
Embodiment 1：
As shown in Fig. 1,2,4,5, a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism, including
Executing agency 8 with heat exchanger components, the first hydraulic cavities and the second hydraulic cavities of the executing agency 8 with heat exchanger components pass through pipe respectively
Road is connected with hydraulic oil container 11, and the hydraulic oil container 11 is equipped with circulating pump inlet port 1 and circulating pump oil return opening 11-13, cycle
Pumping hydraulic fluid port 1 is connected by circulating pump 4, valve and pipeline with the heat transferring medium import of heat exchanger components, and the heat exchange of heat exchanger components is situated between
Matter outlet is connected by valve and pipeline with the circulating pump oil return opening 11-13 of hydraulic oil container, hydraulic oil container 11, heat exchanger components and
The hydraulic oil of circulation is equipped in pipeline, hydraulic fluid temperature switch or sensor 2, hydraulic fluid temperature are equipped in hydraulic oil container
Switch or sensor 2 are connected by electric signal with circulating pump 4.
The executing agency 8 with heat exchanger components is external-cooling type executing agency 12.
External-cooling type executing agency 12 is mainly by executing agency's displacement sensor 7, heat transferring medium outlet A 12-1, executing agency
Shell A 12-2, oily piston seal assembly A 12-3, piston rod seal pack A 12-4, the first hydraulic cavities A 12-5, oily piston A
12-6, the second hydraulic cavities A 12-7, leakage monitoring chamber A 12-8, heat transferring medium import A 12-9, clearance volume chamber A 12-10,
Clearance piston seal component A 12-11, clearance piston A 12-12, piston rod A 12-13, heat exchange jacket 12-14, mounting flange A
12-15, heat transferring medium chamber A 12-16 are formed.Clearance volume chamber A 12-10 are the working chamber that system carries out tolerance adjusting, are controlled
Hydraulic oil enter the second hydraulic cavities A 12-7 or the first hydraulic cavities A 12-5 drivings oily piston A 12-6, piston rod A 12-13 and
Clearance piston A 12-12, and then clearance volume chamber A 12-10 are adjusted, leakage monitoring chamber A 12-8 are used for leakage monitoring,
Heat exchange jacket 12-14 and heat transferring medium chamber A 12-16 is the heat exchanger components of external-cooling type executing agency 12.
The hydraulic oil container mainly by circulating pump inlet port 1, hydraulic oil liquid bit switch or sensor 3, fuel tank lower margin 11-1,
Oil tank bottom plate 11-2, bleeder plug 11-3, intermediate bulkhead 11-4, oil return pipe 11-5, air filter 11-6, tank cover 11-7,
Hydraulic pressure oil pump suction tube 11-8, liquid level thermometer 11-9, cycle oil pump suction tube 11-10, circulating pump oil absorption filter 11-11, hydraulic pressure
Pumping oil strainer 11-12, circulating pump oil return opening 11-13, fuel tank side board 11-14 compositions.The circulating pump inlet port 1 is set on liquid
11 top of pressure oil case, interior cycle the oil pump suction tube 11-10, the circulating pump oil return opening 11-13 of being equipped with of circulating pump inlet port 1 are set on liquid
11 1 side lower part of pressure oil case.
The cycle oil pump suction tube 11-10 lower ends are equipped with circulating pump oil absorption filter 11-11.
The intermediate bulkhead 11-4 being vertically arranged is equipped on oil tank bottom plate 11-2.
Executing agency's heat transferring medium inlet valve 6 is equipped in the heat transferring medium import of heat exchanger components, in the heat exchange of heat exchanger components
Media outlet is equipped with executing agency's heat transferring medium outlet valve 10.
Pressure sensor 5 is equipped between circulating pump 4 and executing agency's heat transferring medium inlet valve 6.
It is changed between the heat transferring medium outlet of heat exchanger components and executing agency's heat transferring medium outlet valve 10 equipped with executing agency
Heat medium temperature switchs or sensor 9.
In the present embodiment, using hydraulic oil as heat transferring medium, hydraulic oil is driven to recycle pumping from hydraulic oil container by circulating pump 4
The heat transferring medium chamber A 12-16 that oil pipe 11-10 enters external-cooling type executing agency 12 by executing agency's heat transferring medium inlet valve 6 inhale
Heat, by executing agency's heat transferring medium outlet valve 10, circulating pump oil return opening 11-13 hydraulic returns fuel tank 11, circulating pump 4 is by hydraulic pressure
Fuel tank temperature detect switch (TDS) or sensor 2 control start and stop and rotating speed, control that pass to hydraulic oil by external-cooling type executing agency 12 appropriate
Heat, specifically, according to executing agency's operating temperature, the heat generated number, the environment temperature of hydraulic oil container, heat dissipation feelings
The appropriate working temperature of condition and hydraulic oil determines the flow of circulating pump 4, and for the hydraulic oil of the different trades mark, it is appropriate to set
Pump temperature T1 and termination of pumping temperature T2 are opened, 4 start and stop are pumped or to circulating pump electricity by hydraulic fluid temperature switch or 2 control loop of sensor
Machine carries out frequency modulation, controls and passes to the appropriate heat of hydraulic oil by the executing agency 8 with heat exchanger components, so as to make hydraulic oil always
Within suitable operating temperature range.
Embodiment 2：
As shown in Fig. 1,3,4,6, it is in place of the present embodiment and the difference of embodiment 1：
The executing agency 8 with heat exchanger components is inner-cooled executing agency 13.
Inner-cooled executing agency 13 is mainly by executing agency's displacement sensor 7, clearance piston seal component B13-1, heat exchange
Media outlet B 13-2, piston rod seal pack B 13-3, oily piston B 13-4, the first hydraulic cavities B 13-5, the second hydraulic cavities B
13-6, oily piston seal assembly B 13-7, executing agency shell B 13-8, heat transferring medium import B 13-9, leakage monitoring inner cylinder
Seal assembly 13-10, leakage monitoring intracavitary cylinder 13-11, clearance volume chamber B 13-12, leakage monitoring chamber B 13-13, clearance are lived
Fill in B 13-14, piston rod B 13-15, heat transferring medium chamber B 13-16, mounting flange B 13-17 compositions.
Clearance volume chamber B 13-12 are the working chamber that system carries out tolerance adjusting, and control hydraulic oil enters the second hydraulic cavities B
13-6 or the first hydraulic cavities B 13-5 driving oily pistons B 13-4, piston rod B 13-15 and clearance piston B 13-14, so it is right
Clearance volume chamber B 13-12 are adjusted, and leakage monitoring chamber B 13-13 are used for leakage monitoring, and heat transferring medium chamber B 13-16 are interior
The heat exchanger components of cold type executing agency 13.
In the present embodiment, using hydraulic oil as heat transferring medium, hydraulic oil is driven to recycle pumping from hydraulic oil container by circulating pump 4
The heat transferring medium chamber B 13-16 that oil pipe 11-10 enters inner-cooled executing agency 13 by executing agency's heat transferring medium inlet valve 6 inhale
Heat, by executing agency's heat transferring medium outlet valve 10, circulating pump oil return opening 11-13 hydraulic returns fuel tank 11, circulating pump 4 is by hydraulic pressure
Fuel tank temperature detect switch (TDS) or sensor 2 control start and stop and rotating speed, control the heat that hydraulic oil is passed to by inner-cooled executing agency 12
Suitably, so as to which hydraulic oil be made to be constantly within suitable operating temperature range.
The present invention cools down clearance adjustment actuating mechanism using hydraulic oil, while hydraulic oil is kept to be chronically at suitable services temperature
In the range of degree, form a kind of energy saving change system of new type compressor, the system adapt to different geographical, Various Seasonal it is reciprocal
The requirement of formula compressor amount regulating system, energy-saving effect is apparent, highly practical.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are all fallen in protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (8)
1. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism, including the execution machine with heat exchanger components
Structure, the first hydraulic cavities and the second hydraulic cavities of the executing agency with heat exchanger components are connected respectively by pipeline with hydraulic oil container,
It is characterized in that：The hydraulic oil container be equipped with circulating pump inlet port and circulating pump oil return opening, circulating pump inlet port by circulating pump,
Valve and pipeline are connected with the heat transferring medium import of heat exchanger components, the outlet of the heat transferring mediums of heat exchanger components by valve and pipeline with
The circulating pump oil return opening of hydraulic oil container is connected, and the hydraulic oil of circulation is equipped in hydraulic oil container, heat exchanger components and pipeline,
Hydraulic fluid temperature switch or sensor are equipped in hydraulic oil container, hydraulic fluid temperature switch or sensor pass through electric signal and circulating pump
It is connected.
2. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 1,
It is characterized in that：The executing agency with heat exchanger components is external-cooling type executing agency or inner-cooled executing agency.
3. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 1 or 2,
It is characterized in that：The circulating pump inlet port is set at the top of hydraulic oil container, and cycle oil pump suction tube, institute are equipped in circulating pump inlet port
Circulating pump oil return opening is stated set on one side lower part of hydraulic oil container.
4. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 3,
It is characterized in that：The circulating pump inlet port lower end is equipped with circulating pump oil absorption filter.
5. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 3,
It is characterized in that：The intermediate bulkhead being vertically arranged is equipped on oil tank bottom plate.
6. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 1,
It is characterized in that：Executing agency's heat transferring medium inlet valve is equipped in the heat transferring medium import of heat exchanger components, in the heat exchange of heat exchanger components
Media outlet is equipped with executing agency's heat transferring medium outlet valve.
7. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 6,
It is characterized in that：Pressure sensor is equipped between circulating pump and executing agency's heat transferring medium inlet valve.
8. a kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism according to claim 6,
It is characterized in that：Executing agency is equipped between the heat transferring medium outlet of heat exchanger components and executing agency's heat transferring medium outlet valve to exchange heat
Medium temperature switchs or sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211307.4A CN108223498A (en) | 2018-03-14 | 2018-03-14 | A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211307.4A CN108223498A (en) | 2018-03-14 | 2018-03-14 | A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223498A true CN108223498A (en) | 2018-06-29 |
Family
ID=62658429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810211307.4A Withdrawn CN108223498A (en) | 2018-03-14 | 2018-03-14 | A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648265A (en) * | 2021-01-05 | 2021-04-13 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
| CN112832995A (en) * | 2021-02-26 | 2021-05-25 | 山东易阳技术服务有限公司 | Compact clearance stepless regulation air flow actuating mechanism |
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| EP0026793A1 (en) * | 1979-10-08 | 1981-04-15 | Jenbacher Werke AG | Heat pump driven by a combustion engine |
| CN202883335U (en) * | 2012-06-15 | 2013-04-17 | 九江大安自控工程有限公司 | The compressor air adjusting system in diesel hydrogenation device |
| CN203335360U (en) * | 2013-05-20 | 2013-12-11 | 北京天高隔膜压缩机有限公司 | Novel variable working condition multi-stage diaphragm compressor |
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| CN203516006U (en) * | 2013-10-29 | 2014-04-02 | 金帝子 | Passive clearance adjusting system of reciprocating compressor |
| CN205330918U (en) * | 2016-01-29 | 2016-06-22 | 山东易阳石化节能装备有限公司 | Interior cold type compressor clearance tolerance governing system actuating mechanism |
| CN105781957A (en) * | 2016-01-29 | 2016-07-20 | 山东易阳石化节能装备有限公司 | Multifunctional leakage monitoring system of executing mechanisms of compressor and clearance air flow regulation system |
| CN207921036U (en) * | 2018-03-14 | 2018-09-28 | 顾兴坤 | A kind of hydraulic control system cooling down clearance adjustment actuating mechanism using hydraulic oil |
-
2018
- 2018-03-14 CN CN201810211307.4A patent/CN108223498A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0026793A1 (en) * | 1979-10-08 | 1981-04-15 | Jenbacher Werke AG | Heat pump driven by a combustion engine |
| CN202883335U (en) * | 2012-06-15 | 2013-04-17 | 九江大安自控工程有限公司 | The compressor air adjusting system in diesel hydrogenation device |
| CN203335360U (en) * | 2013-05-20 | 2013-12-11 | 北京天高隔膜压缩机有限公司 | Novel variable working condition multi-stage diaphragm compressor |
| CN203477891U (en) * | 2013-07-26 | 2014-03-12 | 中国科学院工程热物理研究所 | Distributed energy comprehensive utilization system for natural gas station |
| CN203516006U (en) * | 2013-10-29 | 2014-04-02 | 金帝子 | Passive clearance adjusting system of reciprocating compressor |
| CN205330918U (en) * | 2016-01-29 | 2016-06-22 | 山东易阳石化节能装备有限公司 | Interior cold type compressor clearance tolerance governing system actuating mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648265A (en) * | 2021-01-05 | 2021-04-13 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
| CN112648265B (en) * | 2021-01-05 | 2023-11-21 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
| CN112832995A (en) * | 2021-02-26 | 2021-05-25 | 山东易阳技术服务有限公司 | Compact clearance stepless regulation air flow actuating mechanism |
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Application publication date: 20180629 |