CN110005817A - A kind of containment heat derives mechanical seal for pump and auxiliary system devices - Google Patents
A kind of containment heat derives mechanical seal for pump and auxiliary system devices Download PDFInfo
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- CN110005817A CN110005817A CN201910197614.6A CN201910197614A CN110005817A CN 110005817 A CN110005817 A CN 110005817A CN 201910197614 A CN201910197614 A CN 201910197614A CN 110005817 A CN110005817 A CN 110005817A
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- medium
- ring
- sealing mechanism
- mechanical seal
- atmospheric
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Abstract
The invention discloses a kind of containment heat derives mechanical seal for pump and auxiliary system devices, including double mechanical seal system and the auxiliary system being connected with the double seals system, the double mechanical seal system includes: transmission mechanism, for axis rotary motion to be transferred to the double seals system；Sealing mechanism, for avoiding the high radiation medium in containment heat derives pump to atmospheric air leakage；The auxiliary system includes thermal siphon tank and the coil pipe with thermal siphon tank welded connecting, and the thermal siphon tank is full of insulating liquid, coolant liquid is full of in the coil pipe, coolant liquid and insulating liquid carry out heat exchange, for cooling down and lubricating seal face.Mechanical seal provided by the invention and auxiliary system devices structure are simple, reliable performance stable operation and can realize that high radiation medium to atmospheric side zero leakage, and passes through thermosyphon effect in the high radiation environment of high temperature for a long time, improve sealing running environment, guarantees the stabilization longtime running of mechanical seal.
Description
Technical field
The present invention relates to nuclear power equipment mechanical seal field more particularly to a kind of containment heat derives mechanical seal for pump
And auxiliary system devices.
Background technique
In magnificent imperial No.1 nuclear power technology, containment heat derives pump is the important composition portion of containment heat derives system
Point.It is mainly used under super design reference operating condition fetching water (intake is provided with strainer) from containment material-changing water tank (IRWST)
Container spray, active reactor pit water filling and the backwash of melt pit strainer are carried out, so that the pressure and guarantee that limit in containment decline
Heating is exported from containment.It plays an important role to a kind of npp safety operation using the imperial No.1 nuclear power technology of China.Hua Long
No.1 nuclear power technology containment heat derives pump requires mechanical seal and auxiliary system to have high reliability, can be in multiplexing
While operation under condition point, have and bear violent earthquake and thermal shock, and there may be impurity in cooling water depletion and medium
Under equal accident conditions, remain to execute expectation function.Meanwhile the medium of containment heat derives pump is boron water, in accident conditions
Irradiation dose is high afterwards, it is desirable that mechanical seal has high radiation-resistant property, and does not allow radiating medium to leak into environment.Mesh
Before, conventional mechanical seal and auxiliary system are unable to satisfy magnificent imperial No.1 nuclear power technology containment heat derives pump multi-state
It is required that.
In practical applications, for same type pump mechanical sealing in stand-by heat operating condition, mechanical seal rinsing water leaving water temperature is super
Mark, influences the safety of pump group.The mechanical seal rinsing scheme of one of the prior art is that self-loopa is rinsed, when the pump is operated, heat
Screen plays the role of cooling isolation, at the same the pumping member on mechanical sealing linkage ring the hot water in seal chamber is pumped to it is mechanical close
It seals cooler and carries out heat exchange, recirculated cooling water takes away the heat that sealing surface friction generates.But it is close when pump is in stand-by state
Pumping member in envelope chamber stops working, and the medium in seal chamber is in stationary state, close when pump intake water temperature increases
Medium between envelope chamber and the pump housing can generate microfluidic and part heat exchange, and these heats are only capable of, sealing cooling by heat shielding
Cavity temperature accordingly increases, the temperature setting alarming value of seal flush liquid when having eventually exceeded operation, under long-time high-temperature condition
It is serious to nonmetal parts aging, it is not able to satisfy service life requirement, and then influence the reliability of pump group.
Therefore, it is badly in need of providing a kind of device, solving unit existing in the prior art, (high temperature is static under stand-by heat operating condition
Operating condition), mechanical seal chamber is chronically at high temperature, the problem of causing nonmetal parts heat ageing serious, be not able to satisfy service life.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of containment heat derives to pump with mechanical close
Envelope and auxiliary system devices, the technical solution is as follows: a kind of containment heat derives mechanical seal for pump and auxiliary system dress
It sets, including double mechanical seal system and the auxiliary system being connected with the double seals system, wherein
The double mechanical seal system includes:
Transmission mechanism, for the rotary motion of axis circumferentially to be transferred to the double seals system；
Sealing mechanism, for avoiding the high radiation medium in containment heat derives pump to atmospheric air leakage；
The auxiliary system includes thermal siphon tank and the coil pipe with thermal siphon tank welded connecting, and the thermal siphon tank fills
Expire insulating liquid, coolant liquid is full of in the coil pipe, for cooling down and lubricating the seal face of the double mechanical seal system.
Wherein, the transmission mechanism includes that the wedge shape for being set in the axle sleeve outside axis and being set in outside the axle sleeve seizes
Device, for safe and reliable transmitting power, the axle sleeve includes the first axle sleeve being mounted in first seal groove of axle sleeve
Sealing ring and the second sleeve sealing circle being mounted in second seal groove of axle sleeve.
Wherein, the sealing mechanism includes medium side sealing mechanism and atmosphere side sealing mechanism, the side medium sealer
Structure and atmosphere side sealing mechanism arrangement are back-to-back arrangement, form an individual cavity, for being flowed for the insulating liquid,
Avoid the insulating liquid and the high radiation media contact；The medium side sealing mechanism and atmosphere side sealing mechanism are set in
Outside the axle sleeve.
Wherein, the medium side sealing mechanism includes internal pressure cap assemblies and side medium rotary components, the internal pressure cap assemblies
Including side medium stationary ring sealing ring, side medium stationary ring (2113), retaining ring and the side medium stationary ring being sequentially arranged on internal gland
Retainer ring；The side medium rotary components include the medium lateral spring being sequentially arranged on side medium spring base, side medium throw-out collar, are situated between
Matter side seal ring of moving ring, side medium rotating ring and side medium rotating ring retainer ring, the side medium stationary ring and the side medium rotating ring connect
Touching.
Wherein, the medium side sealing mechanism further includes side medium holding screw and screw-casing, the side medium clamp screw
The screw-casing and the side medium rotary components are fastened on the axle sleeve by nail.
Wherein, the atmosphere side sealing mechanism includes external pressure cap assemblies and atmospheric side rotary components, the external pressure cap assemblies
Including atmospheric side stationary ring sealing ring, atmospheric side stationary ring and the restrictor ring being sequentially arranged on outer press cover；The atmospheric side rotation
Component includes the atmosphere lateral spring being sequentially arranged on atmospheric side spring base, atmospheric side throw-out collar, atmospheric side seal ring of moving ring, atmosphere
Side rotating ring and atmospheric side rotating ring retainer ring, the atmospheric side stationary ring and the atmospheric side rotating ring are in contact.
Wherein, the atmospheric side seal assembly further includes atmospheric side holding screw, and the atmospheric side holding screw will be described
Atmospheric side rotary components are fastened on the axle sleeve.
Wherein, the sealing mechanism further includes screw, locating piece and bolt, and the screw is by the atmospheric side sealer
Structure is connected with the medium side sealing mechanism, and the locating piece is by the atmosphere side sealing mechanism and the side medium sealer
Structure integrates, and is tightened by the bolt.
Wherein, the sealing mechanism further includes the first internal gland sealing ring, the second internal gland sealing ring and outer press cover sealing
Circle, the first internal gland sealing ring and the second internal gland sealing ring are mounted respectively in the internal gland, and the outer press cover is close
Seal is installed into the outer press cover.
Wherein, the double mechanical seal system further include: isolation buffer liquid entrance, the outlet of isolation buffer liquid and leakage
Mouthful, the isolation buffer liquid entrance and the outlet of isolation buffer liquid flowing in and out for insulating liquid；The leakage hole be used for into
The zero leakage of one step realization medium.
Wherein, the thermal siphon tank include storage tank and the pressurization mouth being connect with welding in storage tank, exhaust outlet, leakage fluid dram, every
Chaotropic entrance, insulating liquid outlet and coil pipe；
Wherein, the coil pipe and coolant inlet, cooling liquid outlet are welded to connect；The insulating liquid entrance is isolated with described
Buffer outlet, insulating liquid outlet are connected to the isolation buffer liquid entrance, realize insulating liquid in the hot rainbow
Circulation between cucurbitula and the double mechanical seal system.
Technical solution provided in an embodiment of the present invention has the benefit that (1) double seals system of the invention
Using the sealing device of two sets of back-to-back arrangements, an individual cavity is formed, so that the insulating liquid for being higher than pump chamber pressure is full of it
In, and insulating liquid is not directly contacted with medium, avoids the impurity effect in medium, realizes the zero leakage of medium；(2) of the invention
Screw-casing is set at medium side sealing mechanism, circulation power can be provided for insulating liquid, increases power device without additional；(3)
The present invention transmits torque using holding screw, and the kind of drive is simple and direct reliable；(4) multiple springs are used in double seals system,
Guarantee that elastic force is uniform, seal face load is uniform；(5) present invention seizes device using wedge shape and is driven to axle sleeve, securely and reliably；
(6) present invention is realized by locating piece and is automatically positioned, and without adjusting, eliminates artificial installation error.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the both-end of containment heat derives mechanical seal for pump and auxiliary system devices provided in an embodiment of the present invention
Face sealing system schematic diagram；
Fig. 2 is that containment heat derives mechanical seal for pump and auxiliary system devices machinery provided in an embodiment of the present invention are close
Seal cavity temperature distribution schematic diagram；
Fig. 3 is the auxiliary of containment heat derives mechanical seal for pump and auxiliary system devices provided in an embodiment of the present invention
The main view of system structure diagram；
Fig. 4 is the auxiliary of containment heat derives mechanical seal for pump and auxiliary system devices provided in an embodiment of the present invention
The left view of system structure diagram；
Fig. 5 is the auxiliary of containment heat derives mechanical seal for pump and auxiliary system devices provided in an embodiment of the present invention
Structural schematic diagram at the coil pipe of system.
Specific embodiment
It is mechanical close in order to solve to cannot achieve in the prior art nuclear power unit (the static operating condition of high temperature) under stand-by heat operating condition
The technical issues of envelope chamber is chronically at high temperature, causes nonmetal parts heat ageing serious, be not able to satisfy service life, the present invention is directed to
A kind of containment heat derives mechanical seal for pump and auxiliary system devices are provided, core concept is: providing a kind of safety
Shell heat derives mechanical seal for pump and auxiliary system devices, including double mechanical seal system and with the double seals
The auxiliary system that system is connected, wherein the double mechanical seal system includes: transmission mechanism, is used for axis circumferentially
Rotary motion be transferred to the double seals system；Sealing mechanism, for avoiding the height in containment heat derives pump from putting
Medium is penetrated to atmospheric air leakage；The auxiliary system includes thermal siphon tank, and the thermal siphon tank is full of insulating liquid, for cooling down and moistening
The seal face of the sliding double mechanical seal system.Mechanical seal provided by the invention and auxiliary system devices structure letter
It is single, reliable performance, can for a long time in the high radiation environment of high temperature stable operation and can realize high radiation medium to atmospheric side zero leakage,
And by thermosyphon effect, improves sealing running environment, guarantee the stabilization longtime running of mechanical seal.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Fig. 1 is the both-end of containment heat derives mechanical seal for pump and auxiliary system devices provided in an embodiment of the present invention
Face sealing system schematic diagram, a kind of containment heat derives mechanical seal for pump and auxiliary system devices as shown in Figure 1:, including
Double mechanical seal system 10, the double mechanical seal system 10 include: transmission mechanism 100, for by axis circumferentially
Rotary motion is transferred to the double seals system；Sealing mechanism 200, for avoiding the height in containment heat derives pump from putting
Medium is penetrated to atmospheric air leakage.
Further, transmission mechanism 100 includes the axle sleeve 101 being set in outside axis and the wedge being set in outside the axle sleeve
Shape seizes device 102, specific power train process are as follows: and axle sleeve 101 and axis are interference fitted, when axis circumferentially rotates, axle sleeve 101
It following axis to rotate, and device 102 is seized by wedge shape and spreads out of the power of axis, wedge shape seizes device 102, and to transmit power safety reliable, into
One step, the first seal groove 1011 and the second seal groove 1013 are offered on axle sleeve 101, it, will in actual moving process
First axle sleeve sealing ring 1012 and the second sleeve sealing circle 1014 are separately mounted to the first seal groove 1011 and the second sealing ring
In slot 1013, for preventing medium from revealing.As can be seen from Figure, the first axle sleeve sealing ring 1012 and the second axle sleeve of the invention are close
Seal 1014 is using O-ring seal, and O-ring seal sealing position structure is simple, and installation position is compact, lighter in weight, and
It is with self sealing action.
Further, sealing mechanism 200 includes the sealing mechanism of two sets of back-to-back arrangements, is medium side sealing mechanism respectively
210 and atmosphere side sealing mechanism 220, medium side sealing mechanism 210 and the back-to-back arrangement of atmosphere side sealing mechanism 220 will form one
A individual cavity 230 avoids insulating liquid and high radiation media contact for flowing for insulating liquid；And medium side sealing mechanism 210
It is set in outside axle sleeve 101 with atmosphere side sealing mechanism 220, for sealing mechanism will to be transferred to from the power of axle sleeve 101
200。
Further, medium side sealing mechanism 210 includes internal pressure cap assemblies 211 and side medium rotary components 212, internal gland
Component 211 includes side medium stationary ring sealing ring 2112, the side medium stationary ring 2113, retaining ring for being sequentially arranged on internal gland 2111
2114 and side medium stationary ring retainer ring 2115；Side medium rotary components 212 include being sequentially arranged on side medium spring base 2121
Medium lateral spring 2122, side medium throw-out collar 2123, side medium seal ring of moving ring 2124, side medium rotating ring 2125 and side medium it is dynamic
Ring retainer ring 2126, and side medium stationary ring 2113 and side medium rotating ring 2125 are in contact, and it is secondary to form friction.
Further, medium side sealing mechanism 210 further includes side medium holding screw 213 and screw-casing 214, and side medium is tight
Determine screw 213 screw-casing 214 and side medium rotary components 212 are fastened on axle sleeve 101, specifically, in actual motion process
In, internal pressure cap assemblies 211 are remain stationary, and side medium rotary components 212 pass through side medium clamp screw under the drive of axle sleeve 101
Power is transferred to side medium rotary components 212 by nail 213, so that side medium rotary components 212 are moved with the movement of axis, from
And realize fitting closely for side medium rotary components 212 and internal pressure cap assemblies 211.Meanwhile working as 212 He of side medium rotary components
When wearing in the case where the contact surface long-play of internal pressure cap assemblies 211, pass through medium lateral spring 2122 and side medium
Throw-out collar 2123 realizes automatic compensation, remains fitting closely for side medium stationary ring 2113 and side medium rotating ring 2125.Meanwhile being situated between
Matter lateral spring 2122 and the whole prepackage of side medium throw-out collar 2123, can prevent element from deviating from, be easily installed.Screw-casing 214 be full of
The insulating liquid of individual cavity 230 provides circulation power, increases power device without additional.
Further, atmosphere side sealing mechanism 220 includes external pressure cap assemblies 221 and atmospheric side rotary components 222, outer press cover
Component 221 includes the atmospheric side stationary ring sealing ring 2212 being sequentially arranged on outer press cover 2211, atmospheric side stationary ring 2213 and section
Flow ring 2214；Atmospheric side rotary components 222 include the atmosphere lateral spring 2222 being sequentially arranged on atmospheric side spring base 2221, big
Gas side throw-out collar 2223, atmospheric side seal ring of moving ring 2224, atmospheric side rotating ring 2225 and atmospheric side rotating ring retainer ring 2226, and atmospheric side
Stationary ring 2213 and atmospheric side rotating ring 2225 are in contact, and form the friction pair of atmospheric side.
Further, atmospheric side seal assembly 220 further includes atmospheric side holding screw 223, and atmospheric side holding screw 223 will
Atmospheric side rotary components 220 are fastened on the axle sleeve 101.Specifically, external pressure cap assemblies 221 are protected during actual motion
Hold static, power is transferred to greatly by atmospheric side rotary components 222 under the drive of axle sleeve 101, through atmospheric side holding screw 223
Gas side rotary components 222, so that atmospheric side rotary components 222 are moved with the movement of axis, to realize atmospheric side rotation group
Part 222 and external pressure cap assemblies 221 fit closely.Meanwhile in connecing when atmospheric side rotary components 222 and external pressure cap assemblies 221
When wearing in the case where contacting surface long-play, automatic benefit is realized by atmosphere lateral spring 2222 and atmospheric side throw-out collar 2223
It repays, remains fitting closely for atmospheric side stationary ring 2213 and atmospheric side rotating ring 2225, and atmosphere lateral spring 2222 and atmospheric side
The whole prepackage of throw-out collar 2223, can prevent element from deviating from, be easily installed.
Wherein, atmosphere lateral spring 2222 and medium lateral spring 2122 are all made of multiple springs, guarantee that elastic force is uniform, seal face
Load is uniform.
Further, sealing mechanism 200 further includes screw 240, locating piece 250 and bolt 260, and screw 240 is by atmosphere
Side sealing mechanism 220 is connected with medium side sealing mechanism 210, and locating piece 250 is close by atmosphere side sealing mechanism 220 and side medium
Sealing mechanism 210 integrates, and is fastened by bolt 260.Sealing device is automatically positioned by locating piece 250, nothing
It need to be adjusted, eliminate artificial installation error.
Further, sealing mechanism 200 further includes the first internal gland sealing ring 2127,2128 and of the second internal gland sealing ring
Outer press cover sealing ring 2227, the first internal gland sealing ring 2127 and the second internal gland sealing ring 2128 are mounted respectively to internal gland
In 2111, for preventing media leaks；Outer press cover sealing ring 2227 is installed into outer press cover 2211, for preventing insulating liquid from seeping
Leakage；And above-mentioned sealing ring is all made of O-ring seal.
Further, double mechanical seal system 10 further include: isolation buffer liquid entrance 300, the outlet of isolation buffer liquid
400 and leakage hole 500, isolation buffer liquid entrance 300 be provided with the top of outer press cover, for realizing the inflow of insulating liquid, isolation
Buffer outlet 400 is provided with the top of internal gland, for realizing the outflow of insulating liquid；Leakage hole 500 is provided with outer press cover
Bottom further prevents media leaks into atmosphere, is used for for collecting the medium for leaking to double mechanical seal system 10
Realize the zero leakage of medium.
Further, mechanical close as shown in Fig. 2, being analyzed by the stand-by heat operating condition pumped to containment heat derives
It is as shown in Figure 2 to seal cavity temperature distribution.After the insulating liquid of outlet side is heated, density, which reduces, obtains certain lift, into
Enter to be cooled in storage tank and return seal chamber, this circulating cooling forms barrier action to pump side high-temperature medium.After barrier,
It is being substantially reduced close to internal gland 2111 with the temperature at the pump housing, while impregnating side medium rotating ring 2125 and medium in the medium
Due to the thermosyphon effect of medium, temperature also obtains to be greatly lowered side stationary ring 2113.In the effect for not accounting for pump side throttling
When fruit, setting 1012 temperature of the first sealing ring at axle sleeve is higher, causes the heat ageing of sealing ring at this, directly injures inside
The medium of high irradiation dose leaks outward, therefore containment heat derives mechanical sealing device used for pump is set in the rear end close to axle sleeve
The second sealing ring 1014 together has been set, and the temperature gradient at axle sleeve is made full use of to influence, has reduced the second sealing ring 1014
High temperature ageing influence, to further improve the reliability and safety of mechanical seal.
Further, in conjunction with Fig. 3, thermal siphon tank 21 includes storage tank 201 and the pressurization mouth with the welded connecting of storage tank 201
202 and exhaust outlet 203, the upper left quarter of storage tank 201 is arranged in pressurization mouth 202, and the pipeline being folded upward at by one is connected to storage
Tank 201, for being pressurizeed by the pressurized mouth P (2) of external pressure source to storage tank (1), so that insulating liquid is higher than pump chamber pressure.
The top of storage tank 201 is arranged in exhaust outlet 203, for the gas in let-down vessel 201.
Further, in conjunction with Fig. 4, thermal siphon tank 21 further includes leakage fluid dram 204, insulating liquid entrance 205, insulating liquid outlet
206 and with coil pipe 22 be welded to connect coolant inlet 208 and cooling liquid outlet 209；Leakage fluid dram 204 is arranged in storage tank 201
Bottom, for emptying the insulating liquid in storage tank 201 as needed；Insulating liquid entrance 205 and insulating liquid outlet 206 are in an angle of 90 degrees
It is welded on the outer wall of storage tank 201, for being discharged and being discharged into insulating liquid；Coolant inlet 208 and cooling liquid outlet 209 are welded on
The two sides of tank bottom, for accessing and picking out coolant liquid, in actual moving process, insulating liquid in storage tank 201 be full of
The coolant liquid of coil pipe 22 carries out heat exchange and cools down for cooling down insulating liquid to double seals system 10；Further,
In conjunction with Fig. 1, insulating liquid entrance, 205 are connected to isolation buffer liquid outlet 400, insulating liquid outlet 206 and isolation buffer liquid entrance
Circulation of the insulating liquid between thermal siphon tank 21 and double mechanical seal system 10 is realized in 300 connections.It should be understood that
Total interface is connected with flange method.
Further, in conjunction with Fig. 5, coil pipe 22 is inserted into inside storage tank 201, contacts with insulating liquid, and 22 spiral of coil pipe is upward, to the greatest extent
The possible contact area for increasing coil pipe 22 and storage tank makes the coolant liquid in insulating liquid and coil pipe 22 carry out sufficient heat exchange,
Cooling insulating liquid to greatest extent, realizes the cooling of insulating liquid and lubricates seal face, takes away end face frictional heat, improves sealing fortune
Row environment guarantees the stabilization longtime running of mechanical seal.The serial number of the above embodiments of the invention is only for description, does not represent implementation
The superiority and inferiority of example.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
In conclusion a kind of containment heat derives mechanical seal for pump provided in an embodiment of the present invention and auxiliary system dress
It sets, by using the double seals system of two sets of back-to-back arrangements, forms an individual cavity, so that being higher than pump chamber pressure
Insulating liquid is full of wherein, and insulating liquid is not directly contacted with medium, avoids the impurity effect in medium, realizes that the zero of medium lets out
Leakage；Meanwhile by the way that the thermal siphon tank that is connected with sealing system is arranged, realize the storage tank full of insulating liquid and is full of the cooling of coil pipe
Liquid carries out heat exchange, realizes the cooling of insulating liquid and lubricates seal face, takes away end face frictional heat, improves sealing running environment,
Guarantee the stabilization longtime running of mechanical seal；In addition, screw-casing is arranged in the present invention at medium side sealing mechanism, it can be insulating liquid
Circulation power is provided, increases power device without additional, simplifies device, reduce cost；And the present invention is transmitted using holding screw
Torque, the kind of drive are simple and direct reliable；And multiple springs are used in double seals system, guarantee that elastic force is uniform, seal face
Load is uniform；The present invention seizes device using wedge shape and is driven to axle sleeve, securely and reliably；The present invention is realized automatic by locating piece
Positioning eliminates artificial installation error without adjusting.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of containment heat derives mechanical seal for pump and auxiliary system devices, including double mechanical seal system (10)
And the auxiliary system (20) being connected with the double seals system (10), which is characterized in that
The double mechanical seal system (10) includes:
Transmission mechanism (100), for the rotary motive power of axis circumferentially to be transferred to the double seals system；
Sealing mechanism (200), for avoiding the high radiation medium in containment heat derives pump to atmospheric air leakage；
The auxiliary system (20) includes thermal siphon tank (21) and the coil pipe (22) with the thermal siphon tank (21) welded connecting, institute
It states thermal siphon tank (21) and is full of insulating liquid, coolant liquid is full of in the coil pipe (22), coolant liquid and insulating liquid carry out heat exchange, use
In the seal face for cooling down and lubricating the double mechanical seal system (10).
2. the apparatus according to claim 1, which is characterized in that the transmission mechanism (100) includes being set in outside axis
Axle sleeve (101) and the wedge shape being set in outside the axle sleeve seize device (102), for safe and reliable transmitting power, the axis
Set (101) includes the first axle sleeve sealing ring (1012) being mounted in first seal groove of axle sleeve (1011) and is mounted on
The second sleeve sealing circle (1014) in second seal groove of axle sleeve (1013).
3. the apparatus of claim 2, which is characterized in that the sealing mechanism (200) includes medium side sealing mechanism
(210) and atmosphere side sealing mechanism (220), the medium side sealing mechanism (210) and atmosphere side sealing mechanism (220) arrangement side
Formula is back-to-back arrangement, forms an individual cavity (230), for flowing for the insulating liquid, avoids the insulating liquid and institute
State high radiation media contact；The medium side sealing mechanism (210) and atmosphere side sealing mechanism (220) are set in the axle sleeve
(101) external.
4. device according to claim 3, which is characterized in that the medium side sealing mechanism (210) includes internal gland group
Part (211) and side medium rotary components (212), the internal pressure cap assemblies (211) include being sequentially arranged on internal gland (2111)
Side medium stationary ring sealing ring (2112), side medium stationary ring (2113), retaining ring (2114) and side medium stationary ring retainer ring (2115)；
The side medium rotary components (212) include be sequentially arranged on side medium spring base (2121) medium lateral spring (2122),
Side medium throw-out collar (2123), side medium seal ring of moving ring (2124), side medium rotating ring (2125) and side medium rotating ring retainer ring
(2126), the side medium stationary ring (2113) and the side medium rotating ring (2125) are in contact.
5. device according to claim 4, which is characterized in that the medium side sealing mechanism further includes side medium clamp screw
(213) and screw-casing (214) are followed closely, the side medium holding screw (213) rotates the screw-casing (214) and the side medium
Component (212) is fastened on the axle sleeve (101).
6. device according to claim 3, which is characterized in that the atmosphere side sealing mechanism (220) includes outer press cover group
Part (221) and atmospheric side rotary components (222), the external pressure cap assemblies (221) include being sequentially arranged on outer press cover (2211)
Atmospheric side stationary ring sealing ring (2212), atmospheric side stationary ring (2213) and restrictor ring (2214)；The atmospheric side rotary components
It (222) include the atmosphere lateral spring (2222) being sequentially arranged on atmospheric side spring base (2221), atmospheric side throw-out collar (2223), big
Gas side seal ring of moving ring (2224), atmospheric side rotating ring (2225) and atmospheric side rotating ring retainer ring (2226), the atmospheric side stationary ring
(2213) it is in contact with the atmospheric side rotating ring (2225).
7. device according to claim 6, which is characterized in that the atmospheric side seal assembly (220) further includes atmospheric side
The atmospheric side rotary components (220) are fastened on the axle sleeve by holding screw (223), the atmospheric side holding screw (223)
(101) on.
8. device according to claim 3, which is characterized in that the sealing mechanism (200) further includes screw (240), determines
Position block (250) and bolt (260), the screw (240) is by the atmosphere side sealing mechanism (220) and the medium side seal
Mechanism (210) is connected, and the locating piece (250) is by the atmosphere side sealing mechanism (220) and the medium side sealing mechanism
(210) it integrates, and is fastened by the bolt (260).
9. device according to claim 4, which is characterized in that the sealing mechanism (200) further includes that the first internal gland is close
Seal (2127), the second internal gland sealing ring (2128) and outer press cover sealing ring (2227), the first internal gland sealing ring
(2127) it is mounted respectively in the internal gland (2111) with the second internal gland sealing ring (2128), the outer press cover sealing ring
(2227) installation is into the outer press cover (2211).
10. the apparatus according to claim 1, which is characterized in that the double mechanical seal system (10) further include: every
From buffer inlet (300), isolation buffer liquid outlet (400) and leakage hole (500), the isolation buffer liquid entrance (300) and
Isolation buffer liquid outlet (400) is flowed in and out for insulating liquid；The leakage hole (500) is for further realizing medium
Zero leakage.
11. the apparatus according to claim 1, which is characterized in that the thermal siphon tank (21) include storage tank (201) and with
Pressurization mouth (202), exhaust outlet (203), leakage fluid dram (204), insulating liquid entrance (205) and the isolation that storage tank (201) is welded to connect
Liquid exports (206).
12. device according to claim 11, which is characterized in that the coil pipe (22) and coolant inlet (208), cooling
Liquid exports (209) and is welded to connect；Insulating liquid is by the coil pipe (22) and coolant liquid heat exchange, for cooling down insulating liquid；It is described
Insulating liquid entrance (205) exports (400) with the isolation buffer liquid and is connected to, insulating liquid outlet (206) with it is described be isolated delay
Fliud flushing entrance (300) connection, realize insulating liquid the thermal siphon tank (21) and the double mechanical seal system (10) it
Between circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197614.6A CN110005817A (en) | 2019-03-15 | 2019-03-15 | A kind of containment heat derives mechanical seal for pump and auxiliary system devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197614.6A CN110005817A (en) | 2019-03-15 | 2019-03-15 | A kind of containment heat derives mechanical seal for pump and auxiliary system devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005817A true CN110005817A (en) | 2019-07-12 |
Family
ID=67167194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197614.6A Pending CN110005817A (en) | 2019-03-15 | 2019-03-15 | A kind of containment heat derives mechanical seal for pump and auxiliary system devices |
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| Country | Link |
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| CN (1) | CN110005817A (en) |
Cited By (3)
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| CN113028064A (en) * | 2021-03-18 | 2021-06-25 | 北京航天石化技术装备工程有限公司 | Mechanical seal and pressure-reducing and temperature-reducing system and method for water circulating pump of high-pressure furnace |
| CN117646797A (en) * | 2024-01-30 | 2024-03-05 | 中密控股股份有限公司 | Sealing suitable for coolant circulating pump of ship power device |
| CN117646797B (en) * | 2024-01-30 | 2024-05-14 | 中密控股股份有限公司 | Sealing suitable for coolant circulating pump of ship power device |
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| CN113028064A (en) * | 2021-03-18 | 2021-06-25 | 北京航天石化技术装备工程有限公司 | Mechanical seal and pressure-reducing and temperature-reducing system and method for water circulating pump of high-pressure furnace |
| CN117646797A (en) * | 2024-01-30 | 2024-03-05 | 中密控股股份有限公司 | Sealing suitable for coolant circulating pump of ship power device |
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Application publication date: 20190712 |