CN204827931U - Vacuum control device is prevented to screw rod host computer - Google Patents
Vacuum control device is prevented to screw rod host computer Download PDFInfo
- Publication number
- CN204827931U CN204827931U CN201520563307.2U CN201520563307U CN204827931U CN 204827931 U CN204827931 U CN 204827931U CN 201520563307 U CN201520563307 U CN 201520563307U CN 204827931 U CN204827931 U CN 204827931U
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- valve
- oil
- aeration
- host computer
- deaerator
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Abstract
The utility model discloses a vacuum control device is prevented to screw rod host computer, its motor is connected with the host computer, and host computer, the control valve that admits air, air cleaner connect gradually, and inverse proportion valve, atmospheric valve and aeration valve are still connected respectively to the control valve that admits air, oil and gas separator is located oil gas bucket top to connect the host computer, oil and gas separator still connects atmospheric valve and aeration valve respectively, inverse proportion valve, aeration valve and solenoid valve are still connected respectively to the atmospheric valve, oil and gas separator is last to be equipped with minimum pressure valve, and the shuttle valve is parallelly connected with minimum pressure valve, and solenoid valve and pressure sensor are still connected respectively to the shuttle valve, solenoid valve, pressure sensor and switch connect gradually, oil gas bucket, temperature -sensing valve, oil filter, host computer connect gradually, and oil cooler connects in parallel on the pipeline between temperature -sensing valve and oil filter. The utility model discloses installed the aeration valve between blow -down pipe on the control system pipeline that admits air and the admission valve additional, made the unit operation good, the up to standard requirement.
Description
Technical field
The utility model belongs to fluid machinery compressor industry, relates to the anti-vacuum control unit of a kind of screw host be applied on screw air compressor.
Background technique
When designing huge discharge screw machine, due to when zero load, suction valve cuts out, and little gas inlet hole, main frame inner chamber easily forms vacuum, causes the gas of main exhaust end to aggravate.Unit vibration and noise are obviously increased, has a strong impact on the reliability of unit.
Model utility content
For solving the problems of the technologies described above, the utility model provides the anti-vacuum control unit of a kind of screw host.
To achieve these goals, the utility model adopts following technological scheme.
The anti-vacuum control unit of screw host, comprising: motor, main frame, air intake control valve, air-strainer, inverse proportion valve, atmospheric valve, aeration valve, solenoid valve, shuttle valve, deaerator, barrel of oil and gas, minimum pressure valve, thermostat valve, oil cooler, oil strainer, pressure transducer, switch.
Described motor is connected with main frame, and main frame, air intake control valve, air-strainer connect successively, and air intake control valve also connects inverse proportion valve, atmospheric valve and aeration valve respectively.
Described deaerator is positioned at above barrel of oil and gas, and connects main frame, and deaerator also connects atmospheric valve and aeration valve respectively; Described atmospheric valve also connects inverse proportion valve, aeration valve and solenoid valve respectively.
Described deaerator is provided with minimum pressure valve, and shuttle valve is in parallel with minimum pressure valve, and shuttle valve also distinguishes connected electromagnetic valve and pressure transducer; Solenoid valve, pressure transducer are connected successively with switch; Described barrel of oil and gas, thermostat valve, oil strainer, main frame connect successively, and oil cooler is connected in parallel on the pipeline between thermostat valve and oil strainer.
As further improvement of the utility model, described deaerator is also provided with deaerator differential pressure switch.
Described oil strainer is provided with oil strainer differential pressure switch.
In the utility model, compressor operating principle is as follows.
(1) starting period.
Press starting button, motor drives compressor starts to rotate.Solenoid valve power-off, suction valve cuts out, and under the effect of aspirator vacuum degree, suction valve aperture enters a small amount of fresh air, build-up pressure in deaerator.Motor completes Y-△ (star-delta) and starts under lower back pressure.After about 6 seconds, Y-△ starts EOC.
(2) conventional operation.
After Y-△ starts EOC, solenoid valve obtains electric, and control gas circuit and connect, INO, compressor enters full load condition, and when the pressure in catch pot reaches about 0.35MPa, minimum pressure valve is opened, the outside air feed of compressor starts.At this moment, suction valve keeps maximum opening, and unit is in the state of oepration at full load.As long as system internal pressure is no more than compressor rated pressure, this state will be kept always.
(3) unloading runs.
When client's gas consumption is less than 30% of rated discharge amount, intrasystem pressure can raise rapidly.When reaching rated pressure value+0.02MPa, solenoid valve cuts out because of dead electricity, and automatic air release valve opens venting release, and the pressure in oil content is declined rapidly, compressor just under a lower back pressure no-load running save energy consumption.If client's gas consumption increases, then system pressure declines.When pressure is lower than when unloading pressure, solenoid valve obtains electric and opens, and automatic air release valve is closed, and stops emptying. and meanwhile, capacity regulating valve regulation enters the control tolerance of suction valve, so suction valve is just opened, compressor enters again the state that full load is run.
(5) emptying is shut down.
Press stop botton, compressor is out of service, and meanwhile, solenoid valve cuts out because of dead electricity, cutting-off controlling gas circuit, so atmospheric valve is opened, venting release, realizes shutting down emptying.
When turning because main frame is dynamic, the enclosed volume of the particularly larger formation of its root diameter of huge discharge helical-lobe compressor is also large, if when inter-tooth volume starts to expand, can not start breathing process immediately, will produce air-breathing enclosed volume.Owing to inhaling the existence of closed air space, make the initial stage that inter-tooth volume is expanding, the gas pressure in it is lower than the gas pressure at intakeport place.When inter-tooth volume is communicated with suction port, the gas pressure in it can be elevated to pressure of inspiration(Pi) suddenly, then just carries out normal breathing process.So the existence of air-breathing enclosed volume, have impact on the normal inflation of inter-tooth volume.Therefore air-breathing enclosed volume should be made less during design.Thus, when main frame entry into service and unloading running no load, air inlet valve position is in closed condition, and little gas inlet hole, when main frame inner chamber formation vacuum is larger, causes the gas of main exhaust end to aggravate.Unit vibration and noise are obviously increased, has a strong impact on the reliability of unit.
Tonifying Qi principle of the present utility model: installed aeration valve between blow-down pipe and suction valve additional, time unloaded, solenoid valve dead electricity, aeration valve action, toward tonifying Qi in main frame in oil content barrel, reduce the degree of vacuum in head, gas is reduced, and when solenoid valve obtains electric, air compressor loads, make aeration valve close valve, stop venting.
The beneficial effects of the utility model are, the blow-down pipe on air intake control system pipeline and installed aeration valve additional between suction valve, make unit operation good, reach standard-required.
Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Wherein, 1, motor; 2, main frame; 3, air intake control valve; 4, air-strainer; 5, inverse proportion valve; 6, atmospheric valve; 7, aeration valve; 8, solenoid valve; 9, shuttle valve; 10, deaerator; 11, barrel of oil and gas; 12, minimum pressure valve; 13, thermostat valve; 14, oil cooler; 15, oil strainer; 16, pressure transducer; 17, switch; 18, deaerator differential pressure switch; 19, oil strainer differential pressure switch.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
As shown in Figure 1, the anti-vacuum control unit of screw host of the present embodiment, comprising: motor 1, main frame 2, air intake control valve 3, air-strainer 4, inverse proportion valve 5, atmospheric valve 6, aeration valve 7, solenoid valve 8, shuttle valve 9, deaerator 10, barrel of oil and gas 11, minimum pressure valve 12, thermostat valve 13, oil cooler 14, oil strainer 15, pressure transducer 16, switch 17, deaerator differential pressure switch 18, oil strainer differential pressure switch 19.
Described motor 1 is connected with main frame 2, and main frame 2, air intake control valve 3, air-strainer 4 connect successively, and air intake control valve 3 also connects inverse proportion valve 5, atmospheric valve 6 and aeration valve 7 respectively.
Described deaerator 10 is positioned at above barrel of oil and gas 11, and connects main frame 2, and deaerator 10 also connects atmospheric valve 6 and aeration valve 7 respectively; Described atmospheric valve 6 also connects inverse proportion valve 5, aeration valve 7 and solenoid valve 8.
Described deaerator 10 is provided with minimum pressure valve 12, and shuttle valve 9 is in parallel with minimum pressure valve 12, and shuttle valve 9 also distinguishes connected electromagnetic valve 8 and pressure transducer 16; Solenoid valve 8, pressure transducer 16 are connected successively with switch 17; Described barrel of oil and gas 11, thermostat valve 13, oil strainer 15, main frame 2 connect successively, and oil cooler 14 is connected in parallel on the pipeline between thermostat valve 13 and oil strainer 15.
Described deaerator 10 is also provided with deaerator differential pressure switch 18.
Described oil strainer 15 is provided with oil strainer differential pressure switch 19.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (3)
1. the anti-vacuum control unit of screw host, it is characterized in that, comprising: motor, main frame, air intake control valve, air-strainer, inverse proportion valve, atmospheric valve, aeration valve, solenoid valve, shuttle valve, deaerator, barrel of oil and gas, minimum pressure valve, thermostat valve, oil cooler, oil strainer, pressure transducer, switch; Described motor is connected with main frame, and main frame, air intake control valve, air-strainer connect successively, and air intake control valve also connects inverse proportion valve, atmospheric valve and aeration valve respectively; Described deaerator is positioned at above barrel of oil and gas, and connects main frame, and deaerator also connects atmospheric valve and aeration valve respectively; Described atmospheric valve also connects inverse proportion valve, aeration valve and solenoid valve respectively; Described deaerator is provided with minimum pressure valve, and shuttle valve is in parallel with minimum pressure valve, and shuttle valve also distinguishes connected electromagnetic valve and pressure transducer; Solenoid valve, pressure transducer are connected successively with switch; Described barrel of oil and gas, thermostat valve, oil strainer, main frame connect successively, and oil cooler is connected in parallel on the pipeline between thermostat valve and oil strainer.
2. the anti-vacuum control unit of screw host as claimed in claim 1, is characterized in that, described deaerator is also provided with deaerator differential pressure switch.
3. the anti-vacuum control unit of screw host as claimed in claim 1 or 2, it is characterized in that, described oil strainer is provided with oil strainer differential pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563307.2U CN204827931U (en) | 2015-07-31 | 2015-07-31 | Vacuum control device is prevented to screw rod host computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563307.2U CN204827931U (en) | 2015-07-31 | 2015-07-31 | Vacuum control device is prevented to screw rod host computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827931U true CN204827931U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520563307.2U Expired - Fee Related CN204827931U (en) | 2015-07-31 | 2015-07-31 | Vacuum control device is prevented to screw rod host computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827931U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889073A (en) * | 2016-05-26 | 2016-08-24 | 珠海格力电器股份有限公司 | Compressor, capacity regulation system and capacity regulation method thereof |
| CN107829916A (en) * | 2017-11-24 | 2018-03-23 | 盐城市建龙机电设备制造有限公司 | A kind of air compressor machine air-path control system |
| CN108061037A (en) * | 2017-11-14 | 2018-05-22 | 济南临工矿山设备科技有限公司 | A kind of air compressor energy saving control system open in usual |
| CN108533521A (en) * | 2018-03-30 | 2018-09-14 | 萨震压缩机（上海）有限公司 | Waste gas reuse air compressor machine |
| CN108825503A (en) * | 2018-08-31 | 2018-11-16 | 重庆开山压缩机有限公司 | The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump |
| CN108825478A (en) * | 2018-08-03 | 2018-11-16 | 宁波欣达螺杆压缩机有限公司 | A kind of control system of air compressor |
| CN112879295A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Vacuum pumping device |
| CN112879298A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Control mechanism of vacuum pumping system |
| CN112879296A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Vacuum pumping system |
| CN113107824A (en) * | 2021-03-25 | 2021-07-13 | 浙江志高机械股份有限公司 | Intelligent air supplement system and method for air compressor of rock drilling machine |
-
2015
- 2015-07-31 CN CN201520563307.2U patent/CN204827931U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889073B (en) * | 2016-05-26 | 2018-04-20 | 珠海格力电器股份有限公司 | Compressor, capacity modulation and its capacity regulation method |
| CN105889073A (en) * | 2016-05-26 | 2016-08-24 | 珠海格力电器股份有限公司 | Compressor, capacity regulation system and capacity regulation method thereof |
| CN108061037A (en) * | 2017-11-14 | 2018-05-22 | 济南临工矿山设备科技有限公司 | A kind of air compressor energy saving control system open in usual |
| CN107829916A (en) * | 2017-11-24 | 2018-03-23 | 盐城市建龙机电设备制造有限公司 | A kind of air compressor machine air-path control system |
| CN108533521A (en) * | 2018-03-30 | 2018-09-14 | 萨震压缩机（上海）有限公司 | Waste gas reuse air compressor machine |
| CN108825478B (en) * | 2018-08-03 | 2023-09-19 | 宁波欣达螺杆压缩机有限公司 | Air compressor control system |
| CN108825478A (en) * | 2018-08-03 | 2018-11-16 | 宁波欣达螺杆压缩机有限公司 | A kind of control system of air compressor |
| CN108825503A (en) * | 2018-08-31 | 2018-11-16 | 重庆开山压缩机有限公司 | The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump |
| CN108825503B (en) * | 2018-08-31 | 2024-01-23 | 重庆开山流体机械有限公司 | Air supplementing device of oil injection screw type vacuum pump |
| CN112879298A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Control mechanism of vacuum pumping system |
| CN112879296B (en) * | 2021-01-22 | 2022-01-04 | 重庆开山流体机械有限公司 | Vacuum pumping system |
| CN112879295B (en) * | 2021-01-22 | 2023-03-14 | 重庆开山流体机械有限公司 | Vacuum pumping device |
| CN112879296A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Vacuum pumping system |
| CN112879295A (en) * | 2021-01-22 | 2021-06-01 | 重庆开山流体机械有限公司 | Vacuum pumping device |
| CN113107824A (en) * | 2021-03-25 | 2021-07-13 | 浙江志高机械股份有限公司 | Intelligent air supplement system and method for air compressor of rock drilling machine |
| CN113107824B (en) * | 2021-03-25 | 2022-11-29 | 浙江志高机械股份有限公司 | Intelligent air supplement system for air compressor of rock drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |