CN116498796A - Automatic exhaust valve and degassing filter - Google Patents

Automatic exhaust valve and degassing filter Download PDF

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Publication number
CN116498796A
CN116498796A CN202310468998.7A CN202310468998A CN116498796A CN 116498796 A CN116498796 A CN 116498796A CN 202310468998 A CN202310468998 A CN 202310468998A CN 116498796 A CN116498796 A CN 116498796A
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CN
China
Prior art keywords
valve
exhaust
automatic exhaust
exhaust valve
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310468998.7A
Other languages
Chinese (zh)
Inventor
高扬
庄磊
佟秀娟
徐勇
罗维
刘皓天
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Xinlian Petrochemical Equipment Co Ltd
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Shenyang Xinlian Petrochemical Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Xinlian Petrochemical Equipment Co Ltd filed Critical Shenyang Xinlian Petrochemical Equipment Co Ltd
Priority to CN202310468998.7A priority Critical patent/CN116498796A/en
Publication of CN116498796A publication Critical patent/CN116498796A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
    • F16K31/22—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with the float rigidly connected to the valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/88—Replacing filter elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses an automatic exhaust valve and an air-removing filter. The automatic exhaust valve is simple and reasonable in structure, the automatic exhaust valve is connected with the exhaust filter shell through the mounting piece with the exhaust channel, the exhaust channel is used as an exhaust mechanism communicated with the exhaust port, and meanwhile, the automatic exhaust valve is also used as an adaptive duct of the valve rod, compared with the existing valve rod and the exhaust port on the exhaust filter shell, the automatic exhaust valve is directly spliced and matched with the exhaust port on the exhaust filter shell, when the automatic exhaust valve is used in mounting, whether the valve rod is matched with the exhaust port on the exhaust filter shell or not is not required to be considered, the automatic exhaust valve is only required to be connected with the shell and the exhaust channel is guaranteed to be communicated with the exhaust port, so that the mounting mode of the automatic exhaust valve is simplified, the automatic exhaust valve is easy and convenient to assemble and convenient to use, and the automatic exhaust valve can be rapidly installed into different exhaust filters by a user according to needs, so that convenience is provided for maintenance in later periods of the user. The degassing filter comprises the automatic exhaust valve, and has all advantages of the automatic exhaust valve, which are not described herein.

Description

Automatic exhaust valve and degassing filter
Technical Field
The invention relates to the technical field of valves, in particular to an automatic exhaust valve and an air-removing filter.
Background
When liquid enters the degassing filter, the liquid firstly impacts the partition plate to disperse the liquid flow, and the liquid and the gas rise to the top of the filter shell along the partition plate to form a gas phase space. With the continuous expansion of the gas phase space, the liquid interface is continuously lowered, the floating ball of the automatic exhaust valve is lowered along with the liquid interface under the action of dead weight and drives the valve rod to move, so that the exhaust port is opened, and a part of gas is exhausted. If the residual gas quantity in the degassing filter is larger than the gas quantity discharged before, the floating ball of the automatic exhaust valve continuously descends to drive the valve rod to open the exhaust port, and the residual gas is discharged successively. Then, the liquid-gas interface gradually rises to drive the floating ball to gradually rise and close the exhaust port. The purpose of exhausting is repeatedly achieved in this way.
The automatic exhaust valve used by the existing degassing filter is a product produced by each manufacturer, and the valve rod on the automatic exhaust valve is directly matched with the exhaust port on the degassing filter shell to realize exhaust or stop exhaust (sealing), so that in the structure, the installation structure is complex, the disassembly and assembly are difficult, the valve universality is poor, and a lot of inconvenience is brought to the later maintenance of a user.
Disclosure of Invention
The invention aims to provide a novel automatic exhaust valve and an air-relief filter, which are used for solving the problems of complex installation structure, difficult disassembly and assembly and poor valve universality of the existing automatic exhaust valve for the air-relief filter.
In order to achieve the above object, the present invention provides the following solutions:
the present invention provides an automatic exhaust valve, comprising:
the valve body comprises a floating ball and a valve rod arranged above the floating ball;
the mounting piece is provided with an exhaust passage and a connecting structure used for being connected with the degassing filter shell, the valve body is connected to the lower side of the mounting piece through a valve body connecting piece, wherein the top end of the exhaust passage is used for being communicated with an exhaust port on the degassing filter shell, and the bottom end of the exhaust passage is used for being in adaptive plug-in connection with the valve rod.
Optionally, the connection structure is an internal thread or an external thread disposed at the top end of the mounting member.
Optionally, the floating ball is connected with the valve rod through a floating ball connecting block; the valve body connector includes:
the folding frame comprises a plurality of connecting rods which are sequentially hinged end to end;
the first hinge block is arranged on the mounting piece, and the connecting rod at one end of the folding frame is hinged with the first hinge block;
the second hinge block is arranged on the floating ball connecting block, and the connecting rod at the other end of the folding frame is hinged with the second hinge block.
Optionally, the valve body connector is provided with a plurality of groups at the periphery of the valve rod.
Optionally, a tapered hole is arranged at the bottom end of the exhaust channel, the tapered hole comprises a first tapered section and a second tapered section which are sequentially connected from top to bottom, and an included angle between a bus of the first tapered section and a vertical surface is smaller than an included angle between a bus of the second tapered section and the vertical surface; the valve rod is a conical valve rod which can be in sealing connection with the first conical section.
Optionally, the valve rod is a rubber valve rod.
Optionally, the valve further comprises a protective cover sleeved on the periphery of the valve body, the protective cover is connected with the mounting piece, and the protective cover is provided with a hollow structure allowing fluid to pass through.
Optionally, an annular round table is arranged on the periphery of the mounting piece, and a limiting step is arranged on the periphery of the annular round table; the protective cover comprises:
the protective cover connecting flange is sleeved on the limit step;
the columnar protection cover body, the open top of columnar protection cover body sets up, the top periphery of columnar protection cover body is provided with the flange, the columnar protection cover body passes through go up flange joint in protection cover flange's below.
Optionally, any one of the hollow structures is provided with a filter screen, so that liquid impurities are intercepted outside the protective cover.
Optionally, the filter screen can dismantle through the mounting set up in the lateral wall of protection casing.
The invention also provides a degassing filter, which comprises a shell, a mounting seat and the automatic exhaust valve, wherein the top of the shell is provided with an exhaust port, the mounting seat is arranged on the inner wall of the shell, an air passage communicated with the exhaust port is arranged in the mounting seat, the mounting piece is connected to the lower part of the mounting seat through the connecting structure, and the exhaust passage is communicated with the air passage.
Compared with the prior art, the invention has the following technical effects:
the automatic exhaust valve provided by the invention has a simple and reasonable structure, the exhaust channel is connected with the exhaust filter shell through the mounting piece with the exhaust channel, the exhaust channel is used as an exhaust mechanism communicated with the exhaust port and is also used as an adaptive duct of the valve rod, compared with the existing valve rod which is directly spliced and matched with the exhaust port on the exhaust filter shell, when the automatic exhaust valve is used for mounting, whether the valve rod is matched with the exhaust port on the exhaust filter shell or not is not required, the mounting piece is only required to be connected with the shell, and the exhaust channel is ensured to be communicated with the exhaust port, so that the mounting mode of the automatic exhaust valve is simplified, the automatic exhaust valve is convenient to mount and dismount, has strong universality, and a user can rapidly mount the automatic exhaust valve into different exhaust filters according to requirements, thereby providing convenience for later maintenance of the user.
In some technical schemes of the invention, the mounting piece is connected with the mounting seat screw thread on the inner wall of the degassing filter shell through the external screw thread structure, so that the automatic exhaust valve can be quickly disassembled and assembled in the degassing filter, the mounting structure is simple, the space is saved, and the universality of the automatic exhaust valve is improved.
The degassing filter disclosed by the invention comprises the automatic exhaust valve, and has all the advantages of the automatic exhaust valve, and the description is omitted herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an automatic exhaust valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of an automatic exhaust valve according to an embodiment of the present invention;
FIG. 3 is a front view of a valve body in an automatic exhaust valve according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the valve body shown in FIG. 3 at A;
FIG. 5 is a schematic view showing the overall structure of a valve body in an automatic exhaust valve according to an embodiment of the present invention;
FIG. 6 is a schematic view showing the overall structure of a shield in an automatic exhaust valve according to an embodiment of the present invention;
FIG. 7 is a front view of a shield in an automatic exhaust valve according to an embodiment of the present invention;
fig. 8 is a schematic view of the cross-sectional B-B structure of fig. 7.
Wherein, the reference numerals are as follows:
100. an automatic exhaust valve; 200. a degassing filter;
1. a valve body; 11. a floating ball; 12. a valve stem; 13. a floating ball connecting block;
2. a mounting member; 21. an exhaust passage; 211. a first conical section; 212. a second conical section; 22. an external thread; 23. an annular round table; 231. a limit step;
3. a valve body connector; 31. a first link; 32. a first hinge block; 33. a second link; 34. a second hinge block;
4. a protective cover; 41. the protective cover is connected with the flange; 42. a columnar shield body; 43. an upper flange; 44. a lower flange; 45. a hollow structure; 46. a side filter screen; 47. a laryngeal cuff; 48. a lower filter screen; 49. a filter screen fixing flange;
5. a housing; 51. an exhaust port;
6. a mounting base; 61. an airway;
7. and (3) sealing rings.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an automatic exhaust valve for an air-relief filter, which solves the problems of complex installation structure, difficult disassembly and assembly and poor valve universality of the existing automatic exhaust valve for the air-relief filter.
Another object of the present invention is to provide a degassing filter having the above automatic degassing valve.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
As shown in fig. 1 to 5, this embodiment provides an automatic exhaust valve 100, which mainly includes a valve body 1 and a mounting member 2, wherein the valve body 1 includes a floating ball 11 and a valve rod 12 disposed above the floating ball 11, the mounting member 2 is provided with an exhaust passage 21 and a connection structure for connecting with a housing 5 of an air-removing filter 200, the valve body 1 is connected below the mounting member 2 through a valve body connecting member 3, wherein the exhaust passage 21 is vertically arranged through the mounting member 2, the top end of the exhaust passage 21 is used for communicating with an exhaust port 51 on the housing 5 of the air-removing filter 200, and generally after the automatic exhaust valve 100 is mounted in place with the housing 5 through the connection structure on the mounting member 2, the top end of the exhaust passage 21 is communicated with the exhaust port 51; the bottom end of the exhaust channel 21 is used for being inserted and connected with the valve rod 12 in an adapting way, in the process that the floating ball 11 is lifted along with the liquid interface in the housing 5 of the degassing filter 200, the valve rod 12 is inserted or separated with the bottom end of the exhaust channel 21, when the valve rod 12 is inserted and connected with the bottom end of the exhaust channel 21, the valve rod 12 is generally in tight insertion connection with the bottom end of the exhaust channel 21, so that the gas in the housing 5 cannot be discharged through the exhaust port 51, and when the valve rod 12 is separated from the bottom end of the exhaust channel 21 or is in a non-tight insertion state, the bottom end of the exhaust channel 21 is not plugged, the exhaust port 51 is still communicated with the interior of the housing 5 through the exhaust channel 21, and at the moment, the gas in the housing 5 is normally discharged through the exhaust port 51. In the process that the floating ball 11 is lifted along with the liquid interface in the housing 5 of the degassing filter 200, and then the valve rod 12 is controlled to seal or open the bottom end of the degassing channel 21, the valve body connecting piece 3 mainly plays two roles: firstly, the valve body 1 and the mounting piece 2 are ensured to be kept in a connected state, and secondly, the lifting movement of the floating ball 11 and the valve rod 12 is basically guided, so that the valve rod 12 can be smoothly inserted into the bottom end of the exhaust channel 21. Above-mentioned automatic exhaust valve 100 links to each other with shell 5 through mounting 2 that has exhaust passage 21, exhaust passage 21 both as the exhaust mechanism with gas vent 51 intercommunication, simultaneously also regard as the adaptation pore of valve rod 12, compare current valve rod and shell 5 on gas vent 51 direct grafting cooperation, when this scheme's automatic exhaust valve 100 is installed and is used, need not to consider valve rod 12 and shell 5 on gas vent 51 adaptation, only need link to each other with shell 5 through mounting 2 and ensure exhaust passage 21 and gas vent 51 intercommunication can, not only the dismouting is simple and convenient, and the commonality is strong moreover, the user can install automatic exhaust valve 100 rapidly to use in the different air relief filter 200 as required, the maintenance of later stage for the user provides convenience.
In this embodiment, the connection structure on the mounting member 2 may take various forms, such as a plug structure (only a corresponding insertion tube structure is required to be provided on the inner wall of the housing 5 for insertion, etc.), a screwing structure (the internal thread or the external thread 22), or a mounting flange (the mounting flange may be connected to the housing 5 through a structure such as a bolt, etc.). In order to improve the installation convenience of the automatic exhaust valve 100 and ensure the connection stability thereof, in this embodiment, the connection structure is a screwing structure, for example, the top end of the mounting member 2 is a round rod structure, the round rod structure is provided with an internal thread or an external thread 22, and meanwhile, the inner wall of the housing 5 is provided with a mounting seat with a through hole, the mounting seat can be fixed at the top of the inner wall of the housing 5 through a structure such as a bolt, and the through hole inside the mounting seat is communicated with the exhaust port 51 at the top of the housing 5; when the internal thread is arranged on the round rod structure at the top end of the mounting piece 2, the internal thread is positioned on the inner wall of the exhaust channel 21 and is communicated with the exhaust channel 21, and correspondingly, the external thread matched with the internal thread can be arranged on the periphery of the mounting seat on the inner wall of the shell 5 at the moment, the round rod structure at the top end of the mounting piece 2 is sleeved on the outer wall of the mounting seat, the two are screwed and matched through the internal thread and the external thread, and the exhaust channel 21 is communicated with the internal through hole of the mounting seat; and when setting up external screw thread 22 on the mounting 2 top round bar structure, this external screw thread 22 is located this round bar structure outer wall, and correspondingly, can set up the internal thread with this external screw thread 22 adaptation at the mount pad through-hole inner wall of shell 5 inner wall this moment, in the mounting 2 top round bar structure inserts the through-hole of mount pad, and both pass through the cooperation of internal and external screw thread screwing, and exhaust passage 21 and mount pad internal hole intercommunication. In actual operation, the specific setting form of the connecting structure on the mounting piece 2 can be set according to actual requirements, and the mounting piece is preferably set to be positioned as the external thread 22 on the outer wall of the top end of the mounting piece 2, so that the mounting piece is simple in structure, convenient to assemble and disassemble, beneficial to processing, and capable of reducing processing cost and later maintenance cost of the mounting piece 2.
Further, in this embodiment, the top end of the valve body connecting piece 3 is connected with the mounting piece 2, the bottom end is connected with the valve body 1, and in particular, the valve body connecting piece 3 can be connected with the floating ball 11 or the valve rod 12, in order to avoid the influence of the valve body connecting piece 3 on the function of the floating ball 11 or the valve rod 12, in this embodiment, a floating ball connecting block 13 is preferably arranged between the floating ball 11 and the valve rod 12, that is, the valve rod 12 is connected with the top of the floating ball 11 through the floating ball connecting block 13. Correspondingly, the bottom end of the valve body connecting piece 3 is connected with the floating ball connecting block 13. In actual operation, in order to ensure accurate plug-in connection between the valve rod 12 and the bottom end of the exhaust channel 21, the floating ball 11 should vertically float up and down relative to the mounting member 2, and at this time, the valve body connecting member 3 may be configured to have a variable structure in the up-down direction only, such as a vertical telescopic loop rod, a scissor structure or a simple folding structure.
Further, the present embodiment provides the valve body connector 3 in a simple folded structure in consideration of the manufacturing cost, the structural simplicity, and the maintenance convenience of the automatic exhaust valve 100. Specifically, the valve body connecting piece 3 includes a folding frame, a first hinge block 32 and a second hinge block 34, the folding frame includes a plurality of links hinged end to end in sequence, the first hinge block 32 is disposed on the mounting piece 2, the link at one end (i.e. the top end) of the folding frame is hinged with the first hinge block 32, the second hinge block 34 is disposed on the floating ball connecting block 13, the link at the other end (i.e. the bottom end) of the folding frame is hinged with the second hinge block 34, when the floating ball 11 is lifted along with the liquid interface, the folding frame is only contracted or expanded in the up-down direction, so as to ensure that the floating ball 11 can vertically float in a short distance up-down. As a further preferred scheme, the folding frame only comprises two connecting rods, namely a first connecting rod 31 and a second connecting rod 32, as shown in fig. 2, 3 and 5, the top end of the first connecting rod 31 is hinged with the first hinging block 32, the top end of the second connecting rod 33 is hinged with the bottom end of the first connecting rod 31, the bottom end of the second connecting rod 33 is hinged with the second hinging block 34, when the floating ball 11 floats up and down along with the liquid interface, the top end of the first connecting rod 31 and the bottom end of the second connecting rod 33 are mutually close to or far away from each other, and the maximum extension length of the first connecting rod 31 and the second connecting rod 33 corresponds to the maximum floating distance of the floating ball 11, and the distance can meet the exhaust requirement of the automatic exhaust valve 100 on the gas filter 200. In actual operation, the number of the connecting rods in the folding frame and the length of each connecting rod can be appropriately increased or decreased according to different exhaust requirements of different air-relief filters 200, so that the automatic exhaust valve 100 can meet different exhaust requirements of different air-relief filters 200. The second hinge block 34 may be provided with a threaded rod, the valve rod 12 is provided with a connecting through hole, the floating ball connecting block 13 is provided with a corresponding threaded hole, after the connecting through hole on the valve rod 12 is aligned with the threaded hole on the floating ball connecting block 13, the threaded rod of the second hinge block 34 penetrates through the connecting through hole and the threaded hole on the floating ball connecting block 13 from top to bottom, and is screwed with the threaded hole on the floating ball connecting block 13, at this time, the connection between the second hinge block 34 and the floating ball connecting block 13 is realized, and the valve rod 12 is fixed on the floating ball connecting block 13 through the second hinge block 34. The scheme of directly connecting the valve rod 12 and the floating ball connecting block 13 by adopting the second hinging block 34 further simplifies the structure of the automatic exhaust valve. Meanwhile, as a further preferable scheme, the first link 31 and the second link 33, the first link 31 and the first hinge block 32, and the second link 33 and the second hinge block 34 are all hinged by adopting a conventional pin structure, which is not described herein.
In this embodiment, it is preferable that the valve body connector 3 is provided with plural sets on the outer periphery of the valve stem 12, and it is preferable that the valve body connector 3 be uniformly distributed on the outer periphery of the valve stem 12. As shown in fig. 3, two groups of valve body connectors 3 are symmetrically arranged on the periphery of the valve rod 12, so that the floating ball 11 can be further ensured to vertically lift relative to the mounting part 2.
In this embodiment, as shown in fig. 3 and 4, the bottom end of the exhaust channel 21 is preferably provided as a tapered hole, and the tapered hole includes a first tapered section 211 and a second tapered section 212 sequentially connected and penetrating from top to bottom, wherein the top end of the first tapered section 211 is a small end thereof and is communicated with the exhaust channel 21, the bottom end of the first tapered section 211 is a large end thereof, the top end of the second tapered section 212 is a small end thereof and is connected and communicated with the large end of the first tapered section 211, and the bottom end of the second tapered section 212 is a large end thereof. The included angle between the bus bar of the first conical section 211 and the vertical surface is smaller than the included angle between the bus bar of the second conical section 212 and the vertical surface, and a flare is formed at the bottom end of the exhaust passage 21. Accordingly, the valve rod 12 is a conical valve rod capable of being in sealing connection with the first conical section 211, and in order to improve the sealing performance, the valve rod 12 is made of rubber or silica gel. The second conical section 212 is mainly used as an introduction hole of the valve rod 12, and the taper of the first conical section 211 at the top is matched with that of the conical valve rod to play a role in sealing.
Further, in order to reduce the impact on the valve body 1 caused by the severe fluctuation of the liquid medium in the housing 5, the present embodiment further provides a protective cover 4 which is sleeved on the outer periphery of the valve body 1. As shown in fig. 1 and 2, the protection cover 4 is connected with the mounting member 2, and the protection cover 4 is provided with a hollow structure 45 allowing fluid to pass through, so as to ensure that the floating ball 11 is inside the protection cover 4 and can normally contact with a liquid interface in the housing 5.
Further, in the present embodiment, the mount 2 is integrally provided in a round bar structure, the exhaust passage 21 is located on the axis thereof, and both ends of the exhaust passage 21 are disposed through both ends of the mount 2. In order to facilitate the assembly and disassembly of the protection cover 4, in this embodiment, the circular truncated cone 23 is disposed on the periphery of the mounting member 2 having a round rod structure, as shown in fig. 3 and 5, a limiting step 231 is disposed on the periphery of the circular truncated cone 23, and the corresponding first hinge block 32 in the valve body connecting member 3 may be connected to the circular truncated cone 23 through an external connecting member (such as a bolt or a screw), or an external thread is disposed on the first hinge block.
Further, the protection cover 4 of the embodiment includes a protection cover connection flange 41 and a cylindrical protection cover body 42, the protection cover connection flange 41 is sleeved on the limit step 231, and preferably the upper surface of the protection cover connection flange 41 is flush with the upper surface of the annular round table 23, when the mounting piece 2 is screwed with the mounting seat on the housing 5 through the external thread 22 on the top of the mounting piece, the lower surface of the mounting seat can just abut against the upper surface of the protection cover connection flange 41 and the upper surface of the annular round table 23, and at this time, the protection cover connection flange 41 is clamped between the mounting seat on the housing 5 and the limit step 231, so as to fix the protection cover connection flange 41; meanwhile, in order to improve the sealing property between the lower surface of the mounting seat and the upper surface of the annular round table 23, a sealing ring 7 may be disposed therebetween, and the sealing ring 7 is preferably disposed on the upper surface of the annular round table 23. The top opening of the columnar protection cover body 42 is provided, and the top periphery of the columnar protection cover body 42 is provided with an upper flange 43, and the columnar protection cover body 42 is connected below the protection cover connecting flange 41 through the upper flange 43. The lower surfaces of the shield attachment flange 41 and the annular boss 23 together block the top opening of the cylindrical shield body 42. The cylindrical protective cover body 42 is preferably in a cylindrical structure, and the side wall and the bottom plate of the cylindrical protective cover body can be integrally formed or can be arranged in a split mode, and when the cylindrical protective cover body 42 is arranged in the split mode, the bottom plate of the cylindrical protective cover body 42 is arranged to be a lower flange 44 which is detachably connected with the side wall of the cylindrical protective cover body 42. In order to avoid the influence of the protection cover 4 on the flow of the liquid in the shell 5, the hollow structure 45 can be arranged on the side wall and the bottom plate (namely, the lower flange 44) of the columnar protection cover body 42, and the size of the hollow structure 45 can meet the pressure balance of the liquid inside and outside the columnar protection cover body 42.
Further, in this embodiment, a filter screen is disposed at any hollow structure 45 to intercept the liquid impurities outside the protective cover 4. The filter screen can be embedded into the corresponding hollow structure 5, and can also be arranged on the inner wall or the outer wall of the columnar protective cover body 42. As a preferred scheme, the filter screen at any hollow structure 45 is detachably arranged on the outer wall of the protective cover 4 through a fixing piece. For example, the plurality of hollow structures 45 on the side wall of the columnar protective cover body 42 are circumferentially arranged on the side wall of the columnar protective cover body 42, so that a strip-shaped side filter screen 46 can be adopted to surround the periphery of the columnar protective cover body 42 and cover each hollow structure 45, and then the strip-shaped side filter screen 46 is fixed on the outer wall of the columnar protective cover body 42 through a hose clamp 47, so that the filter screen can be conveniently disassembled and replaced. For another example, a plurality of hollow structures 45 are uniformly arranged on the bottom plate (i.e. the lower flange 44) of the columnar protective cover body 42, a round lower filter screen 48 can be arranged below the lower flange 44 and connected with the lower flange 44 through a filter screen fixing flange 49, the lower filter screen 48 is fixed between the lower flange 44 and the filter screen fixing flange 49, the round lower filter screen 48 can cover each hollow structure 45 on the lower flange 44, and when the filter screen needs to be maintained and detached, the filter screen fixing flange 49 can be detached.
Further, any hollow structure 45 in this embodiment may be a regular pattern such as a rectangle, a hexagon, a pentagon, or a circle, or may be an irregular pattern, and the hollow structures 45 may or may not be identical in shape and size. As a preferable scheme, all the hollow structures 45 are set to be equal-sized circles, and the diameter size is about 20 mm. The side wall of the columnar protective cover body 42 and the hollow-out structure 45 on the lower flange 44 are uniformly distributed.
The following describes the specific installation and use of the automatic exhaust valve 100 according to the present embodiment.
The top end of the mounting piece 2 of the automatic exhaust valve 100 is set to be a connecting shaft structure, external threads 22 are arranged outside the top end of the connecting shaft structure, the automatic exhaust valve 100 is in threaded connection with a corresponding mounting seat on the shell 5 through the external threads 22, and therefore the connection between the automatic exhaust valve 100 and the degassing filter 200 is achieved, the mounting structure is simple, and the dismounting is convenient. After the external threads 22 are screwed in place in the mounting seat, the sealing ring 7 can intercept the liquid in the shell 5 outside the exhaust duct communicated with the exhaust port 51, so that the liquid in the shell 5 is effectively prevented from overflowing through the exhaust port 51. The valve body connecting piece 3 adopts a symmetrical connecting rod telescopic design, so that the bottom floating ball 11 can vertically float up and down by a short distance, and the automatic exhaust valve 100 can be ensured to exhaust stably and effectively during working. The protective cover 4 is arranged outside the valve body 1, so that impact on the valve body 1 caused by severe fluctuation of a liquid medium in the shell 5 can be reduced, the hollow structure 45 on the side surface and the bottom of the protective cover 4 is provided with the filter screen, and sand particles and impurities can be intercepted outside the filter screen, so that the exhaust channel 21 of the valve body 1 is prevented from being blocked.
Therefore, the automatic exhaust valve is simple in valve body structure, parts are convenient to process and easy to assemble, the later maintenance cost is reduced, the automatic exhaust valve is simple in installation structure, the automatic exhaust valve is quickly installed inside the degassing filter through the installation piece with the exhaust channel and the installation seat on the shell in threaded connection, space is saved, the exhaust channel is used as an exhaust mechanism communicated with the exhaust port, and meanwhile, the automatic exhaust valve is used as an adaptation duct of the valve rod, compared with the existing valve rod and the exhaust port on the shell, the automatic exhaust valve is directly spliced and matched with the exhaust port on the shell, and when the automatic exhaust valve is installed and used, whether the valve rod is matched with the exhaust port on the shell or not is not required, the automatic exhaust valve is only connected with the shell through the installation piece and the exhaust channel is guaranteed to be communicated with the exhaust port, so that the automatic exhaust valve is convenient to disassemble and high in universality, and a user can quickly detach the automatic exhaust valve from the degassing filter and quickly install the automatic exhaust valve into another different degassing filters according to the needs, and convenience is provided for later maintenance of the user.
Example two
As shown in fig. 1, the present embodiment proposes a degassing filter 200, which includes a housing 5, a mounting seat 6 and an automatic exhaust valve 100 as disclosed in embodiment one, an exhaust port 51 is provided at the top of the housing 5, the mounting seat 6 is disposed on the inner wall of the housing 5, an air passage 61 communicating with the exhaust port 51 is provided in the mounting seat 6, the mounting member 2 is connected below the mounting seat 6 by a connection structure, and the exhaust passage 21 communicates with the air passage 61.
Further, the connection structure on the mounting member 2 of the present embodiment may take various forms, such as a plug structure (the mounting base 6 is configured to be plugged into the insertion tube structure), a screwing structure (the internal or external screw threads 22), or a mounting flange (the mounting flange may be connected to the mounting base 6 by a bolt or the like). In order to improve the installation convenience of the automatic exhaust valve 100 and ensure the connection stability of the automatic exhaust valve 100, the connection structure is set to be a screwing structure, for example, an internal thread or an external thread 22 is set at the top end of the installation piece 2, the installation seat 6 is fixed at the top of the inner wall of the shell 5 through a structure such as a bolt, and an air channel 61 in the installation seat 6 is communicated with the air outlet 51 at the top of the shell 5; when the top end of the mounting piece 2 is provided with an internal thread, the internal thread is positioned on the inner wall of the exhaust channel 21 and is communicated with the exhaust channel 21, correspondingly, the periphery of the mounting seat 6 is provided with an external thread matched with the internal thread, the top end of the mounting piece 2 is sleeved on the outer wall of the mounting seat 6, the two are in screwing fit through the internal thread and the external thread, and the exhaust channel 21 is communicated with the inner air channel 61 of the mounting seat 6; when the top end of the mounting piece 2 is provided with the external thread 22, the external thread 22 is positioned on the outer wall of the mounting piece 2, correspondingly, the inner wall of the air channel 61 of the mounting seat 6 can be provided with the internal thread matched with the external thread 22, the top end of the mounting piece 2 is inserted into the air channel 61 of the mounting seat 6, the two are screwed and matched through the internal thread and the external thread, and the exhaust channel 21 is communicated with the air channel 61 in the mounting seat 6. In actual operation, the specific arrangement form of the connecting structure on the mounting piece 2 can be set according to actual requirements, and the embodiment is preferably arranged as the external thread 22 positioned on the outer wall of the top end of the mounting piece 2, and correspondingly, the mounting seat 6 is provided with an internal thread hole communicated with the internal air passage 61; the mounting device is mounted in a screwing mode of the internal and external threads, is simple in structure, convenient to assemble and disassemble, beneficial to processing, and capable of reducing processing cost and later maintenance cost of the mounting piece 2.
As shown in fig. 1 and 2, after the mounting piece 2 is screwed with the mounting seat 6 through the external thread 22 at the top of the mounting piece, the lower surface of the mounting seat 6 can be just abutted against the upper surface of the protective cover connecting flange 41 and the upper surface of the annular round table 23, and at this time, the protective cover connecting flange 41 is clamped between the mounting seat and the limiting step 231 on the housing 5, so that the protective cover connecting flange 41 is fixed. Meanwhile, in order to improve the sealability between the lower surface of the mounting seat 6 and the upper surface of the annular round table 23, a sealing ring 7 may be disposed therebetween to intercept the liquid in the housing 5 outside the exhaust duct communicating with the exhaust port 51. The sealing ring 7 is preferably arranged on the upper surface of the annular round table 23.
The following describes the specific installation and use of the automatic exhaust valve 100 according to the present embodiment.
The top end of the mounting piece 2 of the automatic exhaust valve 100 is provided with a connecting shaft structure, external threads 22 are arranged outside the top end of the connecting shaft structure, the automatic exhaust valve 100 is in threaded connection with the mounting seat 6 through the external threads 22, and then the automatic exhaust valve 100 is connected with the degassing filter 200, so that the automatic exhaust valve is simple in mounting structure and convenient to mount and dismount. After the external threads 22 are screwed in place in the mounting seat 6, the sealing ring 7 can intercept the liquid in the shell 5 outside the exhaust duct communicated with the exhaust port 51, so that the liquid in the shell 5 is effectively prevented from overflowing through the exhaust port 51. The valve body connecting piece 3 adopts a symmetrical connecting rod telescopic design, so that the bottom floating ball 11 can vertically float up and down by a short distance, and the automatic exhaust valve 100 can be ensured to exhaust stably and effectively during working. The protective cover 4 is arranged outside the valve body 1, so that impact on the valve body 1 caused by severe fluctuation of a liquid medium in the shell 5 can be reduced, the hollow structure 45 on the side surface and the bottom of the protective cover 4 is provided with the filter screen, and sand particles and impurities can be intercepted outside the filter screen, so that the exhaust channel 21 of the valve body 1 is prevented from being blocked.
Therefore, the automatic exhaust valve is simple in valve body structure, parts are convenient to process and easy to assemble, the later maintenance cost is reduced, the automatic exhaust valve is simple in installation structure, the automatic exhaust valve is quickly installed inside the degassing filter through the installation piece with the exhaust channel and the installation seat on the shell in threaded connection, space is saved, the exhaust channel is used as an exhaust mechanism communicated with the exhaust port, and meanwhile, the automatic exhaust valve is used as an adaptation duct of the valve rod, compared with the existing valve rod and the exhaust port on the shell, the automatic exhaust valve is directly spliced and matched with the exhaust port on the shell, and when the automatic exhaust valve is installed and used, whether the valve rod is matched with the exhaust port on the shell or not is not required, the automatic exhaust valve is only connected with the shell through the installation piece and the exhaust channel is guaranteed to be communicated with the exhaust port, so that the automatic exhaust valve is convenient to disassemble and high in universality, and a user can quickly detach the automatic exhaust valve from the degassing filter and quickly install the automatic exhaust valve into another different degassing filters according to the needs, and convenience is provided for later maintenance of the user.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (10)

1. An automatic exhaust valve, comprising:
the valve body comprises a floating ball and a valve rod arranged above the floating ball;
the mounting piece is provided with an exhaust passage and a connecting structure used for being connected with the degassing filter shell, the valve body is connected to the lower side of the mounting piece through a valve body connecting piece, wherein the top end of the exhaust passage is used for being communicated with an exhaust port on the degassing filter shell, and the bottom end of the exhaust passage is used for being in adaptive plug-in connection with the valve rod.
2. The automatic exhaust valve according to claim 1, wherein the connection structure is an internal thread or an external thread provided at the top end of the mounting member.
3. The automatic exhaust valve according to claim 1, wherein the float ball is connected to the valve stem through a float ball connection block; the valve body connector includes:
the folding frame comprises a plurality of connecting rods which are sequentially hinged end to end;
the first hinge block is arranged on the mounting piece, and the connecting rod at one end of the folding frame is hinged with the first hinge block;
the second hinge block is arranged on the floating ball connecting block, and the connecting rod at the other end of the folding frame is hinged with the second hinge block.
4. The automatic exhaust valve according to claim 3, wherein the valve body connector is provided with a plurality of groups at an outer periphery of the valve stem.
5. The automatic exhaust valve according to any one of claims 1 to 4, wherein a tapered hole is formed at the bottom end of the exhaust passage, and the tapered hole comprises a first tapered section and a second tapered section which are sequentially connected from top to bottom, and an included angle between a bus of the first tapered section and a vertical surface is smaller than an included angle between a bus of the second tapered section and the vertical surface; the valve rod is a conical valve rod which can be in sealing connection with the first conical section.
6. The automatic exhaust valve according to any one of claims 1 to 4, wherein the valve stem is a rubber valve stem.
7. The automatic exhaust valve according to any one of claims 1 to 4, further comprising a protective cover sleeved on the outer periphery of the valve body, wherein the protective cover is connected with the mounting member, and a hollow structure allowing fluid to pass through is arranged on the protective cover.
8. The automatic exhaust valve according to claim 7, wherein an annular round table is arranged on the periphery of the mounting piece, and a limiting step is arranged on the periphery of the annular round table; the protective cover comprises:
the protective cover connecting flange is sleeved on the limit step;
the columnar protection cover body, the open top of columnar protection cover body sets up, the top periphery of columnar protection cover body is provided with the flange, the columnar protection cover body passes through go up flange joint in protection cover flange's below.
9. The automatic exhaust valve according to claim 7, wherein a filter screen is provided at any one of the hollow structures to intercept liquid impurities outside the protective cover.
10. The air-removing filter is characterized by comprising a shell, a mounting seat and the automatic exhaust valve according to any one of claims 1-9, wherein an exhaust port is formed in the top of the shell, the mounting seat is arranged on the inner wall of the shell, an air passage communicated with the exhaust port is formed in the mounting seat, and the mounting piece is connected to the lower portion of the mounting seat through the connecting structure, and the exhaust passage is communicated with the air passage.
CN202310468998.7A 2023-04-27 2023-04-27 Automatic exhaust valve and degassing filter Pending CN116498796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310468998.7A CN116498796A (en) 2023-04-27 2023-04-27 Automatic exhaust valve and degassing filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310468998.7A CN116498796A (en) 2023-04-27 2023-04-27 Automatic exhaust valve and degassing filter

Publications (1)

Publication Number Publication Date
CN116498796A true CN116498796A (en) 2023-07-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310468998.7A Pending CN116498796A (en) 2023-04-27 2023-04-27 Automatic exhaust valve and degassing filter

Country Status (1)

Country Link
CN (1) CN116498796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118128942A (en) * 2024-05-08 2024-06-04 沈阳鑫联石化设备有限公司 Automatic exhaust valve for degassing filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118128942A (en) * 2024-05-08 2024-06-04 沈阳鑫联石化设备有限公司 Automatic exhaust valve for degassing filter
CN118128942B (en) * 2024-05-08 2024-07-05 沈阳鑫联石化设备有限公司 Automatic exhaust valve for degassing filter

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