CN207814470U - A kind of multi-sealed combination valve - Google Patents
A kind of multi-sealed combination valve Download PDFInfo
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- CN207814470U CN207814470U CN201820042207.9U CN201820042207U CN207814470U CN 207814470 U CN207814470 U CN 207814470U CN 201820042207 U CN201820042207 U CN 201820042207U CN 207814470 U CN207814470 U CN 207814470U
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- stop
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- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 15
- 238000012856 packing Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a kind of multi-sealed combination valve, including is internally provided with the valve body of runner, further includes along the distribution arrangement setting of the runner, controlling at least two groups valve rod assembly of liquid break-make.The multi-sealed combination valve is provided at least two groups valve rod assembly along the distribution arrangement of valve inner runner, and at least two groups valve rod assembly coordinates jointly, realizes being turned on and off for valve body.When the impaired failure of one of which valve rod assembly, other valve rod assemblies remain to play sealing function, greatly improve the sealing performance of valve body entirety.Therefore, multi-sealed combination valve provided by the utility model, leakage prevention capability is stronger, and sealing performance is more preferable.
Description
Technical Field
The utility model relates to a combination valve technical field, more specifically say, relate to a multiple sealing combination valve.
Background
Under the environment of high temperature, high pressure, vacuum, etc., the sealing surface of the compound valve is very easy to erode and damage, and then leads to the internal leakage of the valve body, causes energy waste, and brings huge economic loss to users.
Most of the compound valves in the prior art are single-seal compound valves only having single-stage sealing, sealing surfaces of the compound valves are easy to damage, especially in high-temperature, high-pressure or vacuum environments, the flow rate of vapor and liquid media is easy to be too high due to high temperature difference and high pressure difference, the sealing surfaces are easy to form flash evaporation, cavitation erosion and other conditions which damage the sealing surfaces, and once the sealing surfaces are damaged, leakage can be increased rapidly.
Therefore, how to improve the sealing performance of the compound valve and reduce the use cost of the compound valve is a technical problem that needs to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multiple sealing combination valve, its problem that can solve liquid leakage under high temperature, the high-pressure environment.
The utility model provides a multiple sealing combination valve, including the inside valve body that is equipped with the runner, still include the edge the distribution direction of runner sets up, is used for controlling at least two sets of valve rod assembly of liquid medium break-make.
Preferably, at least two groups of valve rod assemblies are specifically two groups of valve rod assemblies, and each group of valve rod assemblies comprises a stop valve assembly and a ball valve assembly;
the stop valve assembly comprises a stop valve rod, a valve core arranged at the front end of the stop valve rod, a stop pressure sleeve sleeved on the outer diameter of the stop valve rod, a pressure plate arranged on the upper end surface of the stop pressure sleeve, a cage sleeve sleeved on the peripheral surface of the stop pressure sleeve, a valve seat used for fixing the cage sleeve and a first metal winding pad arranged on the lower end surface of the valve seat;
the ball valve assembly comprises a ball valve rod, a ball body arranged at the end part of the ball valve rod, a ball valve seat used for fixing the ball body, a ball pressure sleeve sleeved on the outer diameter of the ball valve rod and a ball pressure plate arranged on the upper end surface of the ball pressure sleeve.
Preferably, the valve body comprises a left valve body and a right valve body tightly matched with the left valve body;
the flow channel comprises a left flow channel arranged in the left valve body and a right flow channel transversely arranged in the right valve body and communicated with the left flow channel;
wherein,
the left flow channel comprises a feeding flow channel which is obliquely and downwards arranged along the flowing direction of the liquid and a middle flow channel which is vertically and upwards arranged and is communicated with the feeding flow channel and the right flow channel.
Preferably, the left valve body and the right valve body are sealed through a first metal winding pad.
Preferably, the cage sleeve and the left valve body are sealed through a second metal winding pad.
Preferably, the ball valve further comprises a transmission device which is respectively connected with the stop valve rod and the ball valve rod and is used for driving the stop valve rod to move longitudinally and the ball valve rod to rotate.
Preferably, the transmission device is a transmission hand wheel.
Compared with the prior art, the utility model provides a multiple sealing combination valve is provided with at least two sets of valve rod assembly along the distribution direction of the inside runner of valve body, and at least two sets of valve rod assembly cooperate jointly, realize opening and closing of valve body. When one of them group valve rod subassembly is impaired when inefficacy, other group valve rod subassemblies still can play sealed effect, very big improvement the leakproofness of valve body, its leak protection ability is stronger, and sealing performance is better.
In addition, when the valve rod assembly is installed, all the valve rod assemblies are integrally installed on the valve body, if one or more valve rod assemblies leak, only the assemblies with leakage need to be integrally disassembled and replaced, and other parts can still be continuously used, so that the assembling and disassembling process is simplified, and the maintenance cost is saved.
Therefore, the utility model provides a multiple sealing combination valve, its leakproofness is good, and cost of maintenance is low, can solve the problem that liquid medium leaked under adverse circumstances such as high temperature, high pressure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural cross-sectional view of the multiple sealing combination valve provided by the present invention.
The valve comprises a stop valve rod 1, a pressure plate 2, a stop pressure sleeve 3, a first packing layer 4, a third metal winding pad 5, a cage 6, a valve core 7, a valve seat 8, a second metal winding pad 9, a left valve body 10, a valve rod 11, a ball pressure plate 12, a ball pressure sleeve 13, a second packing layer 14, a right valve body 15, a right flow channel 16, a ball 17, a ball valve seat 18, a disc spring 19 and a left flow channel 20.
Detailed Description
The core of the utility model is to provide a multiple sealing combination valve, its leakproofness is good, can solve the problem that liquid medium leaked under high temperature, the high pressure environment.
It should be noted that the terms "left, right, transverse and longitudinal" directions as used herein refer to the left, right, transverse and longitudinal directions in fig. 1; "inner" refers to the direction of the inside of the left or right valve body in fig. 1, and "outer" refers to the direction of the outside of the left or right valve body in fig. 1. All directional terms used herein are based on the common usage of those skilled in the art and the accompanying drawings of the specification, and their presence should not affect the scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a cross-sectional view of a multiple sealing combination valve according to the present invention.
The utility model provides a multiple sealing composite valve, which comprises a valve body with a flow passage inside, wherein the valve body is made of high temperature and high pressure resistant materials so as to ensure that the valve body still has good working performance under severe environments such as high temperature, high pressure and the like; the inside of valve body is transversely located to the runner to supply the inside liquid circulation of valve body, the cross sectional shape of runner is circular mostly, in order to facilitate processing and clean, of course, the cross sectional shape of runner also can be diversified.
Install at least two sets of valve rod assembly on the valve body, all set up along the distribution direction of runner, it is corresponding, seted up a plurality of mounting holes on the valve body, install a set of valve rod assembly in arbitrary mounting hole, through multiunit valve rod assembly's common cooperation, can realize opening and closing of valve body, so set up, the promotion that is showing the holistic sealing performance of valve body, and can effectually prevent the leakage of the inside liquid medium of valve body.
Specifically, the number of the valve rod group rods is two, one of the valve rod group rods is a stop valve assembly, the other one of the valve rod group rods is a ball valve assembly, the stop valve assembly comprises a stop valve rod 1, a valve core 7 arranged at the front end of the stop valve rod 1, a stop pressure sleeve 3 sleeved on the outer diameter of the stop valve rod 1, a pressure plate 2 is arranged on the upper end face of the stop pressure sleeve 3, a cage sleeve 6 is sleeved on the outer peripheral face of the stop pressure sleeve 3, a first packing layer 4 is filled in the stop pressure sleeve 3, a valve seat 8 used for fixing the cage sleeve 6 is arranged at the lower end of the cage sleeve 6, and a first metal winding pad 9 is arranged on; in addition, the ball valve assembly comprises a ball valve rod 11, a ball body 17 arranged at the end part of the ball valve rod 11, a ball valve seat 18 used for fixing the ball body 17, a ball pressing sleeve 13 sleeved on the outer diameter of the ball valve rod 11 and a ball pressing plate 12 arranged on the upper end surface of the ball pressing sleeve 13 and sleeved on the outer diameter of the ball valve rod 11, wherein a second packing layer 14 is filled in the ball pressing sleeve 13, the first packing layer 4 and the second packing layer 14 are both made of graphite materials, and the first packing layer 4 and the second packing layer 14 in the ball pressing sleeve are respectively pressed tightly by the stop pressing sleeve 3 and the ball pressing sleeve 13 so as to press the stop valve rod 1 and the ball valve rod; in addition, to effect a seal between the shut-off valve assembly and the valve body, a third metal wound gasket 5 is provided between the cage 6 and the valve body.
In order to realize the installation of the stop valve assembly and the ball valve assembly, correspondingly, a stop valve assembly mounting hole and a ball valve assembly mounting hole which are used for respectively installing the stop valve assembly and the ball valve assembly are formed in the valve body, wherein the stop valve assembly mounting hole is a circular section hole with the same aperture size, and the structure of the hole bottom is the same as that of the second metal winding pad 9, so that the second metal winding pad 9 is attached to the hole bottom, and the installation and the fixation of the second metal winding pad 9 are realized; in addition, ball valve subassembly mounting hole is including being used for installing ball valve rod 11 and ball pressure cover 13 and with the club mounting hole of the axis parallel arrangement of stop valve subassembly mounting hole, still including locating the lower part of club mounting hole, and communicate with each other rather than, be used for installing spheroid mounting hole of spheroid 17, install ball dish spring 19 between spheroid mounting hole and the ball valve seat 18, in addition, the valve gap is still installed to the right-hand member face of valve body, offsets with spheroid 17's sphere, thereby realizes the installation and the fixing of spheroid 17.
When the valve rod assembly is installed, the stop valve assembly and the ball valve assembly are respectively installed in the stop valve installation hole and the ball valve installation hole through connecting pieces such as bolts, if the stop valve assembly and/or the ball valve assembly leak, only the whole leaked assembly needs to be disassembled and damaged parts need to be replaced, and a valve body does not need to be replaced, so that the assembling and disassembling process of the valve rod assembly is greatly simplified, and the use cost is saved.
In order to further simplify the assembling and disassembling process of the valve body, the valve body can be designed into a detachable split structure, specifically, the valve body comprises a left valve body 10 and a right valve body 15, the stop valve assembly mounting hole and the ball valve assembly mounting hole are both arranged on the left valve body 10, in addition, the left valve body 10 is provided with a left flow passage 20, the left flow passage comprises an access flow passage which is obliquely arranged downwards along the flowing direction of the liquid and a middle flow passage which is arranged at the tail end of the access flow passage and is vertically arranged upwards, the right valve body 15 is provided with a right flow passage 16 which is transversely arranged, and the access flow passage, the middle flow passage and the right flow passage 16 are communicated with each other so that the liquid medium transversely passes.
For realizing the good sealing of left valve body 10 and right valve body 15, set up first metal winding pad between left valve body 10 and right valve body 15, through set up first metal winding pad between left valve body 10 and right valve body 15, connecting pieces such as rethread bolt lock left valve body 10 and right valve body 15 mutually to realize left valve body 10 and right valve body 15 sealed and fixed.
When the valve body is opened, the stop valve rod 1 drives the valve core 7 to move upwards along the stop valve mounting hole, the valve core 7 is far away from the valve seat 8, so that a channel for containing a liquid medium is formed between the valve core 7 and the valve seat 8, the ball valve rod 11 drives the ball body 17 to rotate 90 degrees, at the moment, the ball hole is communicated with an outlet of the right flow channel 16 of the right valve body 15, and at the moment, the valve body is in a circulation state, so that the valve body is opened.
When the valve body is closed, the stop valve rod 1 drives the valve core 7 to move downwards along the stop valve mounting hole, the valve core 7 is close to the valve seat 8 until the valve core is completely attached to the valve seat 8, at the moment, the liquid medium in the flow channel is blocked, the ball valve rod 11 drives the ball body 17 to rotate 90 degrees in the opposite direction, at the moment, the outer peripheral surface of the solid body of the ball body 17 blocks the outlet of the right flow channel 16, the circulation of the liquid medium in the flow channel is further blocked, and therefore double blocking and double sealing of the valve body are achieved.
It should be noted that the first metal winding pad, the second metal winding pad 9, and the third metal winding pad 5 are formed by overlapping and spirally winding soft materials such as alloy, graphite, asbestos, polytetrafluoroethylene, and the like, and can maintain good sealing performance in environments such as high temperature, high pressure, or vacuum, and the sealing performance is stable and reliable.
The motion of the stop valve rod assembly and the ball valve assembly can be realized by the transmission device, when the transmission device drives the stop valve rod 1 and the ball valve rod 11 in sequence, the stop valve rod 1 moves upwards or downwards along the stop valve rod mounting hole, and the ball valve rod 11 drives the ball body 17 to rotate, so that the full opening or the full closing of the valve body double-sealing structure is realized, and the function of the valve body double-sealing is realized.
The transmission may be a manual transmission, such as a hand wheel, an electric transmission, such as an electric motor, or a pneumatic transmission, such as a hydraulic cylinder.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above is to the multi-sealing compound valve provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A multiple sealing compound valve comprises a valve body with a flow passage inside, and is characterized by also comprising at least two groups of valve rod assemblies which are arranged along the distribution direction of the flow passage and used for controlling the on-off of a liquid medium; the at least two groups of valve rod assemblies are specifically two groups of valve rod assemblies and comprise a stop valve assembly and a ball valve assembly;
the stop valve assembly comprises a stop valve rod (1), a valve core (7) arranged at the front end of the stop valve rod (1), a stop pressure sleeve (3) sleeved on the outer diameter of the stop valve rod (1), a pressure plate (2) arranged on the upper end surface of the stop pressure sleeve (3), a cage sleeve (6) sleeved on the outer peripheral surface of the stop pressure sleeve (3) and a stop valve seat (8) used for fixing the cage sleeve (6);
the ball valve assembly comprises a ball valve rod (11), a ball body (17) arranged at the end part of the ball valve rod (11), a ball valve seat (18) used for fixing the ball body (17), a ball pressure sleeve (13) sleeved on the outer diameter of the ball valve rod (11) and a ball pressure plate (12) arranged on the upper end surface of the ball pressure sleeve (13).
2. The multiple seal compound valve of claim 1, wherein the valve body comprises a left valve body (10) and a right valve body (15) that mates with the left valve body (10);
the flow channel comprises a left flow channel (20) arranged in the left valve body (10) and a right flow channel (16) transversely arranged in the right valve body (15) and communicated with the left flow channel (20);
wherein,
the left flow channel (20) comprises an inlet flow channel which is obliquely arranged downwards along the flowing direction of the liquid and a middle flow channel which is vertically arranged upwards and communicated with the inlet flow channel and the right flow channel (16).
3. Multiple seal combination valve according to claim 2, characterized in that the left valve body (10) and the right valve body (15) are sealed by a first metal wound gasket.
4. Multiple seal combination valve according to claim 3, characterized in that the cage (6) is sealed from the left valve body (10) by a second metal wound gasket (9).
5. The multiple-seal combination valve according to any one of claims 1 to 4, further comprising a transmission device connected to the shut-off valve stem (1) and the ball valve stem (11), respectively, for driving the shut-off valve stem (1) to move longitudinally and the ball valve stem (11) to rotate.
6. Multiple seal combination valve according to claim 5, wherein the transmission means is in particular a transmission hand wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820042207.9U CN207814470U (en) | 2018-01-10 | 2018-01-10 | A kind of multi-sealed combination valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820042207.9U CN207814470U (en) | 2018-01-10 | 2018-01-10 | A kind of multi-sealed combination valve |
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| CN207814470U true CN207814470U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820042207.9U Active CN207814470U (en) | 2018-01-10 | 2018-01-10 | A kind of multi-sealed combination valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725957A (en) * | 2019-09-24 | 2020-01-24 | 中泰阀门有限公司 | High pressure resistant double sealing gate valve |
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2018
- 2018-01-10 CN CN201820042207.9U patent/CN207814470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725957A (en) * | 2019-09-24 | 2020-01-24 | 中泰阀门有限公司 | High pressure resistant double sealing gate valve |
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