CN204921968U - Full automatically regulated - circulation system's mechanical seal system - Google Patents
Full automatically regulated - circulation system's mechanical seal system Download PDFInfo
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- CN204921968U CN204921968U CN201520656887.XU CN201520656887U CN204921968U CN 204921968 U CN204921968 U CN 204921968U CN 201520656887 U CN201520656887 U CN 201520656887U CN 204921968 U CN204921968 U CN 204921968U
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Abstract
The utility model relates to a full automatically regulated - circulation system's mechanical seal system, the splendid attire container of keeping apart liquid including the splendid attire, install the relief valve on the splendid attire container, liquid level sight glass, liquid level changer, blow -down valve, that connects the splendid attire container enters to seal the circulation way, goes out sealed circulation way, and the container adds - the decompression way, container fluid infusion way. Because the utility model discloses in used self -supporting pressure -increasing valves, self -supporting relief pressure valve, differential pressure transmitter, circulating pump, plunger pump in the system after, compare with ordinary mechanical seal system, connect the nitrogen gas source and the liquid source that keeps apart liquid, do not need operating personnel to field operation, avoided personnel to on -the -spot danger. The self -supporting adds owing to having had, the relief pressure valve, can replace the piston cylinder scheme that is suitable for sealed chamber pressure variation, and automatically regulated is realized to pressure, and the while also is suitable for the mechanical seal of major diameter, high pressure, high temperature.
Description
Technical field
The utility model belongs to mechanical sealing system technical field, particularly relates to a kind of mechanical sealing system of full-automatic regulation-circulatory system.
Background technique
At present, for the situation of pump chamber pressure, the fluctuation of still internal pressure, major part adopts the scheme pressurization of piston cylinder.Piston cylinder utilizes the difference in areas mineralization pressure of piston both sides poor, and large size side joint enters in pump chamber or still, and small size side joint enters Seal cage, keeps Seal cage pressure all the time higher than the pressure in pump chamber or still.Because area is definite value, differential pressure is similarly definite value, and when fluctuation appears in pressure, differential pressure is constant.
In piston cylinder pressurization scheme, there are many deficiencys.
One is that piston requirement machining accuracy is high, and cost is higher.
Two is pistons when moving up and down, and have frictional force to exist, deviation appears in pressure reduction.
Three is, when having impurity to enter piston and cylinder interior, easily scratch cylinder body, and maintenance there will be interior leakage or piston clamping stagnation not in time.
Four is have rubber parts to seal between piston and cylinder body, and inapplicable medium is the operating mode of high temperature.
Five be piston cylinder also inapplicable medium have impurity or medium to have the operating mode of crystallization.
Six is medium contacts in piston cylinder and pump or in still, to the limited material system of piston cylinder.
Seven is medium contacts in piston cylinder and pump or in still, and when medium is poisonous, rotten, piston cylinder maintenance cost is high.
Summary of the invention
The utility model provides a kind of mechanical sealing system of full-automatic regulation-circulation for solving in known technology the technical problem that exists, do not need the operation of staff simultaneously, system pressure can select Cheng Zidong to regulate, in pump, in medium and still, medium does not meet place with system, easy to maintenance, reduce equipment cost, be suitable for mechanical seal widely.
The technological scheme that the utility model is taked for the technical problem existed in solution known technology is:
The utility model can also adopt following technical measures:
The advantage that the utility model has and good effect are: after employing self-erecting type pressure charging valve, self-supporting type pressure reducing valve, differential pressure transmitter, recycle pump, plunger pump in the mechanical sealing system due to the utility model full-automatic regulation-circulation, compared with mechanical sealing system, when sealed department pressure surge, differential pressure transmitter meeting and self-erecting type pressure charging valve, self-supporting type pressure reducing valve make the interlocking in program, maintenance differential pressure is constant, mechanical sealing part is kept to be fixing difference higher than pump chamber or still internal pressure, the automatic adjusting reaction time of pressure is fast, is applicable to sealing operating mode many.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, container containing; 2, safety valve; 3, fluid level transmitter; 4, liquid level visor; 5, escape cock; 6, container adds-reduces pressure road; 6-1, the first pressure transmitter; 6-2, the second hand stop valve; 6-3, differential pressure transmitter; 6-4, self-supporting type pressure reducing valve; 6-5, self-erecting type pressurizing valve; 6-6, the first hand stop valve; 7, container fluid infusion road; 7-1, one-way valve; 7-2, Electric Actuated Stop Valves; 7-3, the 8th hand stop valve; 7-4, the second pressure gauge; 7-5, plunger pump; 7-6, Y type filter; 7-7, the 7th hand stop valve; 8, enter to seal circulation road; 8-1, the 3rd hand stop valve; 8-2, recycle pump; 8-3, the first pressure gauge; 8-4, the second pressure transmitter; 8-5, the 4th hand stop valve; 9, go out to seal circulation road; 9-1, filter; 9-2, the 5th hand stop valve; 9-3, temperature transmitter; 9-4, heat exchanger; 9-5, the 6th hand stop valve; 9-6, flow transmitter; 10, mechanical sealing part.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of mechanical sealing system of full-automatic regulation-circulation, comprises container containing 1, described container containing has been provided with safety valve 2, fluid level transmitter 3, liquid level visor 4, escape cock 5; Connect that the container of container containing adds-reduces pressure road 6, enters to seal circulation road 8, goes out to seal circulation road 9, container fluid infusion road 7 and mechanical sealing part 10.
Described container adds-reduces pressure road 6 and comprises and be connected the first hand stop valve 6-6 with elevated pressure nitrogen source of the gas, and then connect self-erecting type pressurizing valve 6-5, be divided into two-way afterwards, a road connects self-supporting type pressure reducing valve 6-4, receives air or specify safety assembly point after self-supporting type pressure reducing valve; Another road connects the second hand stop valve 6-2, has the first pressure transmitter 6-1 and pressure difference transmitter 6-3 after the second hand stop valve respectively, is finally connected to the container containing 1 of insulating liquid.
Described enter to seal circulation road 8 comprise container containing lower end connect the 3rd hand stop valve 8-1, recycle pump (band variable-frequency motor) 8-2 is connected after 3rd stop valve, be connected to the first pressure gauge 8-3 and the second pressure transmitter 8-4 afterwards, more manually the 4th hand stop valve 8-5 enters mechanical sealing part 10.
Go out to seal circulation road 9 to comprise exporting with mechanical sealing part 10 and connect filter 9-1, the 5th hand stop valve 9-2 is connected after filter, then cut-in temperature transmitter 9-3 and heat exchanger 9-4, point two-way after heat exchanger, one tunnel is the 6th hand stop valve 9-5, another road connects flow transmitter 9-6 in the middle of stop valve on two, finally accesses insulating liquid container containing 1.
4th container fluid infusion road 7 comprises and is connected the 7th hand stop valve 7-7 with insulating liquid medium source, then Y type filter 7-6 is accessed, enter plunger pump (translator) 7-5 again, plunger pumps and meets the second pressure gauge 7-4, connect Electric Actuated Stop Valves 7-3 respectively afterwards, 8th hand stop valve 7-2, accesses container containing 1 after one-way valve 7-1.
A kind of mechanical sealing system insulating liquid circulation process of full-automatic regulation-circulation:
When all pipelines have connected rear, fluid level transmitter 3 and plunger pump 7-5, Electric Actuated Stop Valves 7-2 make the interlocking in program simultaneously, after system is opened, automatically start plunger pump 7-5, open Electric Actuated Stop Valves, insulating liquid is driven into system pipeline by plunger pump 7-5 and is passed in container containing 1.Until when liquid level attains to a high place, fluid level transmitter 3 sends signal, stop plunger pump 7-5, and automatically closes Electric Actuated Stop Valves.When insulating liquid is depleted to liquid level low level, fluid level transmitter 3 sends signal again, carries out fluid infusion.
After fluid infusion, differential pressure transmitter 6-3 and self-erecting type pressurizing valve 6-5, self-supporting type pressure reducing valve 6-4 make the interlocking in program simultaneously, and start boosting in pump or in still, differential pressure transmitter 6-3 sends signal, open self-erecting type pressurizing valve 6-5, container containing 1 is pressurizeed.In work, when in pump or still internal pressure decline time, differential pressure transmitter 6-3 sends signal, opens self-supporting type pressure reducing valve 6-4, keep pressure reduction constant.When systematic failures overvoltage, pressure release opened by safety valve 2.Pressure transmitter 6-1 be with pump chamber on or pressure transmitter on still contrast, to the correction of differential pressure transmitter 6-3.
After insulating liquid pressure reduction is set up, recycle pump 8-2 and flow transmitter 8-9 makees the interlocking in program, before startup mechanical sealing part 10, start recycle pump 8-2, give the correct time when flow transmitter 8-9 is low, the electric machine frequency of recycle pump is regulated, increase speed, to reach circular flow.Give the correct time when flow transmitter 8-9 is high, the electric machine frequency of recycle pump is regulated, reduce rotating speed, to reach circular flow.
After system is set up, the change seeing on-the-spot differential pressure, pressure, flow, temperature is stopped up in middle control, and mechanical sealing part 10 realizes telecontrol.Do not need operator to arrive execute-in-place, the personnel that avoid are to on-the-spot danger.Owing to having had, self-erecting type adds, reduction valve, can substitute the piston cylinder scheme being suitable for the change of Seal cage pressure, and pressure realizes automatically regulating, and is also suitable for the mechanical sealing part of major diameter, high pressure, high temperature simultaneously.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (2)
1. a mechanical sealing system for full-automatic regulation-circulatory system, comprises the container containing of splendid attire insulating liquid, and described container containing is provided with safety valve, liquid level visor, fluid level transmitter, escape cock; What connect container containing enters to seal circulation road, and go out to seal circulation road, container adds-reduce pressure road, container fluid infusion road.
2. the mechanical sealing system of full-automatic regulation-circulatory system according to claim 1, it is characterized in that: described container adds-reduces pressure road and comprises and be connected the first hand stop valve with elevated pressure nitrogen source of the gas, then self-erecting type pressurizing valve is connected, be divided into two-way afterwards, one tunnel connects self-supporting type pressure reducing valve, receives air or specify safety assembly point after self-supporting type pressure reducing valve; Another road connects the second hand stop valve, has the first pressure transmitter and pressure difference transmitter respectively after the second hand stop valve, is finally connected to the container containing of splendid attire insulating liquid;
Described the 3rd hand stop valve entering to seal circulation road and comprise the connection of container containing lower end, connects recycle pump after the 3rd hand stop valve, is connected to the first pressure gauge and the second pressure transmitter afterwards, then enter mechanical sealing part by the 4th hand stop valve;
Go out to seal circulation road to comprise exporting with mechanical sealing part and connect filter, the 5th hand stop valve is connected after filter, then cut-in temperature transmitter and heat exchanger, point two-way after heat exchanger, one tunnel is the 6th hand stop valve, another road connects flow transmitter in the middle of two stop valves, finally accesses insulating liquid container containing;
Described container fluid infusion road comprises and is connected the 7th hand stop valve with insulating liquid medium source, then Y type filter is accessed, enter plunger pump again, outlet of plunger pump connects the second pressure gauge, accesses container containing after connecting the 8th hand stop valve, Electric Actuated Stop Valves, one-way valve respectively afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656887.XU CN204921968U (en) | 2015-08-27 | 2015-08-27 | Full automatically regulated - circulation system's mechanical seal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656887.XU CN204921968U (en) | 2015-08-27 | 2015-08-27 | Full automatically regulated - circulation system's mechanical seal system |
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| CN204921968U true CN204921968U (en) | 2015-12-30 |
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| CN201520656887.XU Active CN204921968U (en) | 2015-08-27 | 2015-08-27 | Full automatically regulated - circulation system's mechanical seal system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425842A (en) * | 2016-01-06 | 2016-03-23 | 北京化工大学 | Mechanical seal leakage rate online monitoring system |
| CN108591451A (en) * | 2018-07-02 | 2018-09-28 | 清华大学 | A kind of mechanical seal intelligent regulating system and method |
| CN111963905A (en) * | 2020-08-03 | 2020-11-20 | 西安泵阀总厂有限公司 | Automatic blocking liquid pressure regulating system for pressure double sealing |
| CN115876368A (en) * | 2022-12-28 | 2023-03-31 | 中机试验装备股份有限公司 | Force sensor for high-temperature and high-pressure water environment and assembling method thereof |
-
2015
- 2015-08-27 CN CN201520656887.XU patent/CN204921968U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425842A (en) * | 2016-01-06 | 2016-03-23 | 北京化工大学 | Mechanical seal leakage rate online monitoring system |
| CN105425842B (en) * | 2016-01-06 | 2017-12-29 | 北京化工大学 | A kind of mechanical seal leakage rate online monitoring system |
| CN108591451A (en) * | 2018-07-02 | 2018-09-28 | 清华大学 | A kind of mechanical seal intelligent regulating system and method |
| CN111963905A (en) * | 2020-08-03 | 2020-11-20 | 西安泵阀总厂有限公司 | Automatic blocking liquid pressure regulating system for pressure double sealing |
| CN111963905B (en) * | 2020-08-03 | 2021-11-16 | 西安泵阀总厂有限公司 | Automatic blocking liquid pressure regulating system for pressure double sealing |
| CN115876368A (en) * | 2022-12-28 | 2023-03-31 | 中机试验装备股份有限公司 | Force sensor for high-temperature and high-pressure water environment and assembling method thereof |
| CN115876368B (en) * | 2022-12-28 | 2024-05-31 | 中机试验装备股份有限公司 | Force transducer for high-temperature high-pressure water environment and assembly method thereof |
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