CN201802861U - Liquid sealing device for mechanical seal - Google Patents
Liquid sealing device for mechanical seal Download PDFInfo
- Publication number
- CN201802861U CN201802861U CN2010205308726U CN201020530872U CN201802861U CN 201802861 U CN201802861 U CN 201802861U CN 2010205308726 U CN2010205308726 U CN 2010205308726U CN 201020530872 U CN201020530872 U CN 201020530872U CN 201802861 U CN201802861 U CN 201802861U
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- liquid
- pressure
- liquid container
- storage tank
- sealing
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- Expired - Fee Related
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Abstract
Disclosed is a liquid sealing device for mechanical seal. A circulating liquid inlet valve and a circulating liquid outlet valve are mounted on a liquid storage tank; a cooling water coil pipe is mounted in the liquid storage tank; a liquid adding funnel is mounted at the top of the liquid storage tank; and connected with a bladder type energy accumulator; a pressure alarm device switch is mounted on the liquid storage tank; and the liquid storage tank is connected with a manual liquid supplementing pump by the aid of a liquid supplementing component. Liquid sealing pressure provided by the bladder type energy accumulator is 0.2-0.3MPa higher than the pressure of media, the liquid sealing device is independent of an external environment, and a gas bottle can be used for supplementing gas conveniently when gas in a bladder is consumed. Accordingly, a system is extremely high in operational reliability, avoids damage to sealing because of sudden interruption of an external pressure source, prolongs the service life of a mechanical seal and decreases loss of production caused by mechanical pump halting.
Description
Technical field
The utility model relates to a kind of mechanical seal device, relates to a kind of mechanical seal sealing liquid device specifically.
Background technique
In petrochemical industry, pump plays a part to carry various fluids as " heart " of technological process.The type of fluid that pump is carried is various, and chemical property has nothing in common with each other.When carrying inflammable and explosive, poisonous and harmful medium, pump often adopts series connection or double seals, leaks to atmospheric side to stop medium, avoids having an accident the protection environment.Realize that above-mentioned functions just need install a cover system additional for mechanical seal.System provides sealing liquid, circulates between secondary seal, and the pressure of sealing liquid is higher than pressure medium, plays the effect that intercepts medium.Previous System is that the external pressure source of dependence is system's pressurization, when pressure source interrupts, because the machine envelope is subjected to back-pressure, causes end face to open, the leakage of machine envelope.In order to improve the reliability of system, we are changed into system and carry pressure source by external pressure source.
Summary of the invention
At the defective that existing machinery sealing sealing liquid device exists, it is sealing liquid pressurization between the two-stage sealing that the utility model provides a kind of external pressure source that do not rely on, the sealing liquid device that stops medium to leak to atmospheric side.
Solving the problems of the technologies described above the concrete technical measures of being taked is: a kind of mechanical seal sealing liquid device, it is characterized in that: liquid container (1) is installed in support (2) one sides, on liquid container (1) top circulating liquid inlet valve (3) is housed, in liquid container (1) bottom circulating liquid outlet valve (4) is housed, liquid container is provided with coil pipe in (1), the coil pipe inlet is equipped with cooling sea water inlet valve (5), at the coil pipe the other end cooling sea water outlet valve (13) is housed, addition funnel (6) is equipped with at liquid container (1) top, pressure gauge (7) and pressure warning unit switch (8) are equipped with in liquid container (1) top, at support (2) opposite side by the fixing pressure bag type accumulator (11) of pipe collar (10), pressure bag type accumulator (11) is connected with addition funnel (6), manual fluid infusion pump (12) is housed on support (2), manually fluid infusion pump (12) connects the fluid infusion assembly of being made up of ball valve and high pressure hose (9), and the high pressure hose the other end of fluid infusion assembly (9) connects liquid container (1).
The beneficial effects of the utility model: provide the pressure of sealing liquid to be higher than pressure medium 0.2～0.3MPa by bladder type hydropneumatic accumulator, do not rely on external environment condition, when the gas consumption in the capsule, can be by the gas cylinder tonifying Qi, easily.Therefore, system's reliability in the running is very high, has avoided the unexpected interruption of external pressure source to cause the damage of sealing, in the working life of having improved the machine envelope, has reduced pump and has shut down the loss that causes to production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the utility model sealing liquid theory diagram.
Embodiment
Be described with reference to the accompanying drawings structure of the present utility model.
A kind of mechanical seal sealing liquid device, as depicted in figs. 1 and 2, liquid container 1 is installed, circulating liquid inlet valve 3 is housed in liquid container 1 bottom in support 2 one sides, circulating liquid inlet valve 3 is connected with the Seal cage outlet, circulating liquid outlet valve 4 is equipped with on liquid container 1 top, in the circulating liquid outlet port thermometer is housed, and thermometer shows the temperature of sealing liquid, circulating liquid outlet valve 4 is connected with the Seal cage inlet, liquid container 1 links to each other with machine envelope Seal cage, forms a closed system, for sealing provides sealing liquid.In the liquid container 1 coil pipe is set, the coil pipe inlet end connects cooling sea water inlet valve 5, and cooling sea water inlet valve 5 connects outside circulating water, circulating water circulates in coil pipe, with the sealing liquid heat exchange of outside, reduce the temperature of sealing liquid, at the coil pipe the other end cooling sea water outlet valve 13 is housed.At liquid container 1 top addition funnel 6 is housed, addition funnel 6 is equipped with ball valve, for liquid container 1 adds sealing liquid.Pressure gauge 7 is housed on the liquid container 1, shows the force value of sealing liquid, pressure warning unit switch 8 is housed in pressure gauge 7 bottoms.At the pressure bag type accumulator 11 of support 2 opposite sides by pipe collar 10 fixing promising sealing liquid pressurizes, pressure bag type accumulator 11 is connected the control valve bottom of addition funnel 6, pressure bag type accumulator 11 is filled with the gas of certain pressure, and for whole system provides certain pressure, the maintenance system normally moves.Manual fluid infusion pump 12 is housed on support 2, and manually fluid infusion pump 12 connects the fluid infusion assembly of being made up of ball valve and high pressure hose 9, and the high pressure hose the other end of fluid infusion assembly 9 connects liquid container 1, and liquid container 1 and manual fluid infusion pump 12 couple together, and are system's fluid infusion.
This device sealing liquid principle as shown in Figure 3, the circulating liquid inlet valve of liquid container 13 connects formed Seal cage outlet between side mediums sealing and the atmospheric side sealing, circulating liquid outlet valve 4 connects formed Seal cage outlet between side mediums sealing and the atmospheric side sealing.Its effect is the sealing liquid that pressurization is provided to Seal cage, and the pressure of sealing liquid can not leak in the atmosphere sealing medium greater than the pressure 0.2～0.3MPa of sealing medium.In the atmospheric side sealing pumping ring is housed, effect is similar to the impeller of pump, and sealing liquid is circulated between pump and sealing liquid jar, takes away machine envelope frictional heat, lubricated machine envelope.Adopt bladder type hydropneumatic accumulator 11 pressurizations can not rely on the ambient pressure source.In addition, coil pipe is installed in sealing liquid jar 1, is connected with cooling water in the coil pipe, make the sealing liquid of derivation after cooling, return Seal cage, thereby improve the working environment of mechanical seal, improve the reliability and the working life of mechanical seal.For the safe operation of assurance machine envelope, supervisory device is set, when the machine envelope was leaked build-up of pressure decline, pressure warning unit can in time be reported to the police, and the user can in time take maintenance measures.In system, also be provided with pressure gauge and thermometer, can in time understand the pressure and the temperature variations of system.Adopt this device can realize protecting the effect of environment and safety in production, enlarge the Applicable scope of mechanical seal.
Claims (1)
1. mechanical seal sealing liquid device, it is characterized in that: liquid container (1) is installed in support (2) one sides, on liquid container (1) top circulating liquid inlet valve (3) is housed, in liquid container (1) bottom circulating liquid outlet valve (4) is housed, liquid container is provided with coil pipe in (1), the coil pipe inlet is equipped with cooling sea water inlet valve (5), at the coil pipe the other end cooling sea water outlet valve (13) is housed, addition funnel (6) is equipped with at liquid container (1) top, pressure gauge (7) and pressure warning unit switch (8) are equipped with in liquid container (1) top, at support (2) opposite side by the fixing pressure bag type accumulator (11) of pipe collar (10), pressure bag type accumulator (11) is connected with addition funnel (6), manual fluid infusion pump (12) is housed on support (2), manually fluid infusion pump (12) connects the fluid infusion assembly of being made up of ball valve and high pressure hose (9), and the high pressure hose the other end of fluid infusion assembly (9) connects liquid container (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205308726U CN201802861U (en) | 2010-09-16 | 2010-09-16 | Liquid sealing device for mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205308726U CN201802861U (en) | 2010-09-16 | 2010-09-16 | Liquid sealing device for mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802861U true CN201802861U (en) | 2011-04-20 |
Family
ID=43872360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205308726U Expired - Fee Related CN201802861U (en) | 2010-09-16 | 2010-09-16 | Liquid sealing device for mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802861U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705515A (en) * | 2012-06-07 | 2012-10-03 | 宁波伏尔肯机械密封件制造有限公司 | Spacer fluid circulating system used for mechanical seal |
| CN102797695A (en) * | 2012-08-17 | 2012-11-28 | 金庆明 | Cyclic protection control system and cyclic protection control method for mechanical seal |
| CN104315323A (en) * | 2014-09-25 | 2015-01-28 | 天津西澳维密封技术发展有限公司 | Oil-based lubricating pump station and method for realizing environment suitability of mechanical sealing structure by using same |
| CN104329459A (en) * | 2014-09-25 | 2015-02-04 | 天津西澳维密封技术发展有限公司 | Pressure tracking liquid sealing tank system and method for realizing constant pressure of mechanical sealing structure |
| CN105257600A (en) * | 2015-11-02 | 2016-01-20 | 北京科技大学 | Emergency mechanical-sealing-water adding device and method for paste thickener underflow pump |
| CN105443960A (en) * | 2014-09-25 | 2016-03-30 | 天津西澳维密封技术发展有限公司 | Water-based lubricating pump station |
| CN105605225A (en) * | 2016-03-04 | 2016-05-25 | 浙江长城减速机有限公司 | Balance tank for liquid supplement under pressure |
| CN105782440A (en) * | 2016-05-04 | 2016-07-20 | 无锡市伊利亚特机械制造有限公司 | Double-layer liquid sealing tank facilitating liquid supplementing |
| CN110274023A (en) * | 2019-06-25 | 2019-09-24 | 杭州电子科技大学 | A kind of enclosure seal lubrication assistant boosting method |
-
2010
- 2010-09-16 CN CN2010205308726U patent/CN201802861U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705515A (en) * | 2012-06-07 | 2012-10-03 | 宁波伏尔肯机械密封件制造有限公司 | Spacer fluid circulating system used for mechanical seal |
| CN102705515B (en) * | 2012-06-07 | 2015-09-09 | 宁波伏尔肯机械密封件制造有限公司 | For the insulating liquid circulatory system of mechanical seal |
| CN102797695A (en) * | 2012-08-17 | 2012-11-28 | 金庆明 | Cyclic protection control system and cyclic protection control method for mechanical seal |
| CN104315323A (en) * | 2014-09-25 | 2015-01-28 | 天津西澳维密封技术发展有限公司 | Oil-based lubricating pump station and method for realizing environment suitability of mechanical sealing structure by using same |
| CN104329459A (en) * | 2014-09-25 | 2015-02-04 | 天津西澳维密封技术发展有限公司 | Pressure tracking liquid sealing tank system and method for realizing constant pressure of mechanical sealing structure |
| CN105443960A (en) * | 2014-09-25 | 2016-03-30 | 天津西澳维密封技术发展有限公司 | Water-based lubricating pump station |
| CN105257600A (en) * | 2015-11-02 | 2016-01-20 | 北京科技大学 | Emergency mechanical-sealing-water adding device and method for paste thickener underflow pump |
| CN105605225A (en) * | 2016-03-04 | 2016-05-25 | 浙江长城减速机有限公司 | Balance tank for liquid supplement under pressure |
| CN105782440A (en) * | 2016-05-04 | 2016-07-20 | 无锡市伊利亚特机械制造有限公司 | Double-layer liquid sealing tank facilitating liquid supplementing |
| CN110274023A (en) * | 2019-06-25 | 2019-09-24 | 杭州电子科技大学 | A kind of enclosure seal lubrication assistant boosting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20120916 |