CN104653801A - Low voltage driven knife-type gate valve body - Google Patents
Low voltage driven knife-type gate valve body Download PDFInfo
- Publication number
- CN104653801A CN104653801A CN201510123560.0A CN201510123560A CN104653801A CN 104653801 A CN104653801 A CN 104653801A CN 201510123560 A CN201510123560 A CN 201510123560A CN 104653801 A CN104653801 A CN 104653801A
- Authority
- CN
- China
- Prior art keywords
- valve body
- cavity
- flashboard
- low voltage
- type gate
- 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
Links
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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/06—Spindle sealings with stuffing-box ; Sealing rings with at least one ring attached to both spindle and housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a low voltage driven knife-type gate valve body. The low voltage driven knife-type gate valve body comprises a valve body, wherein a cavity is formed in the valve body; one side of the lower part of the cavity is communicated with a pipe joint at an inlet end; the other side of the lower part of the cavity is communicated with the pipe joint at an outlet end; a position, communicated with the pipe joint at the inlet end, inside the cavity, is provided with an annular step; a gate plate is mounted inside the cavity and forms close fit with the annular step; a valve seat is mounted at the top of the cavity; a valve rod is arranged inside the valve seat; the valve rod and the valve seat are sealed by a sealing part; the lower part of the valve rod is provided with external threads. The low voltage driven knife-type gate valve body disclosed by the invention has the advantages of being long in service life, low in fault rate of an executing mechanism, capable of being maintained in the current state after the power is off and needing no continuous power supply, relatively low in energy consumption, stable in operation, unlikely to block by foreigner materials and unlikely to rust and deform; the gate plate can be completely opened without increasing the resistance of the system and without moving up and down; during installation, no space needs to be preset in the upper direction; meanwhile, the sealing effect of the low voltage driven knife-type gate valve body is effectively improved.
Description
Technical field
The present invention relates to a kind of room temperature control valve, specifically a kind of low voltage drive blade type gate valve body.
Background technique
The room temperature control valve adopted in power-supply metering system is at present divided into electric valve, electric heating valve two class substantially.Easily occur Actuators Failures after electric heating valve uses for a long time, cause defective valve, the electric heating valve often opened needs stable power supply continued power, and therefore energy consumption is higher, electric valve is divided into again electric ball valve and electric gate valve, electric ball valve is easily stuck by foreign matter or cannot rotate because corrosion causes valve ball facial disfigurement at work, and the flashboard of existing electric gate valve is opened form and is mostly directly driven flashboard to promote for screw rod, and most of screw rod is exposed outside at valve body when promoting, the gate travel of the electric gate valve of this structure is limited, be difficult to realize opening completely, therefore system resistance can be made relatively large, certain influence is produced to for heat flow, in addition, screw rod need move up and down, therefore the sealing intensity at screw rod place is limited, repeatedly be elevated and after exposed screw rod adhering dust, understand the sealing intensity that affect screw rod place further, in addition, also a part of space need be reserved above valve during installation, for screw rod lifting.
Summary of the invention
It is stable to the object of this invention is to provide a kind of low voltage drive blade type gate valve body, can not stuck by foreign matter, not easy rusting alteration shape, flashboard can all be opened, system resistance can not be increased, can not have an impact to for heat flow, drive the valve rod of flashboard to be positioned at valve inner, and do not need to move up and down, therefore compared with prior art its sealing effect is effectively promoted.
The present invention for achieving the above object, be achieved through the following technical solutions: comprise valve body, in valve body, cavity is set, side, cavity bottom is communicated with entry end pipe joint, cavity bottom opposite side is communicated with outlet end pipe joint, the position that cavity inside communicates with entry end pipe joint arranges ring-shaped step, ring-shaped step inside forms the intake tunnel communicated with entry end pipe joint, in cavity, flashboard is installed, flashboard and ring-shaped step closely cooperate, cavity top installs valve seat, in valve seat, valve rod is set, sealed by Sealing between valve rod and valve seat, stem lower portion arranges outside thread, outside thread installs swivel nut, swivel nut is connected with flashboard, flashboard lifting can be driven by outside thread and swivel nut when valve rod rotates, intake tunnel in ring-shaped step can be closed when extreme lower position is down to by flashboard.Described Sealing comprises the bulge loop being arranged on valve rod border, and bulge loop end face contacts with valve base inner wall, arranges briquetting below bulge loop, and briquetting is connected with valve seat by screw thread.Between briquetting and bulge loop, seal washer is set.Between valve rod and valve seat, O-ring seal is set.Described swivel nut is positioned at the side of flashboard away from ring-shaped step.The plane that described flashboard coordinates with ring-shaped step is clinoplain, and the plane that described ring-shaped step coordinates with flashboard is annular slope, and clinoplain and annular slope are parallel to each other and opposed vertical direction tilts 1 °-5 °.
The invention has the advantages that: long service life, actuator failure rate is low, can keep current state after power-off, do not need continued power, energy consumption is lower, stable, can not stuck by foreign matter, not easy rusting alteration shape, flashboard can all be opened, and can not increase system resistance, can not have an impact to for heat flow, the valve rod of flashboard is driven to be positioned at valve inner, and do not need to move up and down, do not need headspace above during installation, its sealing effect is effectively promoted simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, is valve-closed state shown in figure;
Fig. 2 is structural representation of the present invention, is valve open state shown in figure.
Embodiment
Low voltage drive blade type gate valve body of the present invention comprises valve body 1, cavity 2 is set in valve body 1, side, cavity 2 bottom is communicated with entry end pipe joint 3, cavity 2 bottom opposite side is communicated with outlet end pipe joint 4, the position that cavity 2 inside communicates with entry end pipe joint 3 arranges ring-shaped step 5, ring-shaped step 5 inside forms the intake tunnel 11 communicated with entry end pipe joint 3, in cavity 2, flashboard 6 is installed, flashboard 6 and ring-shaped step 5 closely cooperate, valve seat 7 is installed at cavity 2 top, valve rod 8 is set in valve seat 7, sealed by Sealing between valve rod 8 and valve seat 7, valve rod 8 bottom arranges outside thread 9, outside thread 9 is installed swivel nut 10, swivel nut 10 is connected with flashboard 6, flashboard 6 can be driven to be elevated by outside thread 9 and swivel nut 10 when valve rod 8 rotates, intake tunnel 11 in ring-shaped step 5 can be closed when extreme lower position is down to by flashboard 6.During installation, valve rod 8 upper end of the present invention is connected with electric actuator, and can rotate under the driving of electric actuator, when valve rod 8 rotates, drives flashboard 6 to be elevated by the cooperation of outside thread 9 and swivel nut 10, thus realizes opening or throttle down.The present invention compared with existing electric heating valve, longer service life, actuator failure rate is low, and can keep current state after power-off, and do not need continued power, energy consumption is lower; Compared with existing electric ball valve, the thickness of flashboard is less, stable, can not stuck by foreign matter, not easy rusting alteration shape; Compared with existing electric gate valve, flashboard can all be opened, and can not increase system resistance, can not have an impact to for heat flow, drive the valve rod of flashboard to be positioned at valve inner, and do not need to move up and down, do not need headspace above during installation, its sealing effect can effectively promote simultaneously.
Sealing of the present invention can adopt various structures, wherein preferred structure is: described Sealing comprises the bulge loop 12 being arranged on valve rod 8 border, bulge loop 12 end face and valve seat 7 contact internal walls, arrange briquetting 13 below bulge loop 12, briquetting 13 is connected with valve seat 7 by screw thread.This structure can be realized valve rod 8 and be coordinated by multiple sealing surface with valve seat 7, gap between valve rod 8 and valve seat 7 is repeatedly bent commutate, can sealing intensity significantly between poppet stem 8 and valve seat 7, prevent valve from seeping water, due to gap repeatedly bending commutation, therefore sealing structure still can keep good sealing intensity when rubber components occurs aging.Above-mentioned briquetting 13 and valve seat 7 two parts are to can also play clamping position-limiting action to bulge loop 12 simultaneously, the position of valve rod 8 is fixed, it is inner that the briquetting 13 that this structure can be dismantled is arranged on valve gap 7, be conducive to preventing briquetting 13 accidental or loosening under the effect of external force, cause valve normally to work.In addition, Sealing of the present invention also can adopt other various structures, such as rubber seal etc., but the sealing intensity that these structures can provide is limited, is difficult to keep enough sealing intensities after rubber components is aging.
The present invention strengthens the sealing intensity between valve rod 8 and valve seat 7 further, can arrange seal washer 14 between briquetting 13 and bulge loop 12, also can arrange O-ring seal 15 between valve rod 8 and valve seat 7.
The present invention, in order to reduce the thickness of flashboard 6 further, reduces flashboard 6 by the load of the stuck probability of foreign matter and electric actuator, can adopt following structure: described swivel nut 10 is positioned at the side of flashboard 6 away from ring-shaped step 5.This structure also helps the volume reducing valve body 1, reduces cost taken by themselves and takes up room.
The present invention is the sealing intensity of fitting surface between flashboard 6 and ring-shaped step 5 when strengthening valve closing, following structure can be adopted: the plane that described flashboard 6 coordinates with ring-shaped step 5 is clinoplain 16, the plane that described ring-shaped step 5 coordinates with flashboard 6 is annular slope 17, and clinoplain 16 and annular slope 17 are parallel to each other and opposed vertical direction tilts 1 °-5 °.This structure can realize the pressure strengthened gradually in flashboard 6 decline process between flashboard 6 and ring-shaped step 5 fitting surface, guarantees that flashboard 6 and ring-shaped step 5 closely cooperate.The angle of inclination in clinoplain 16 and annular slope 17 opposed vertical direction is greater than 5 °, although flashboard 6 and ring-shaped step 5 still can be kept to closely cooperate, can have an impact to the water (flow) direction passed through in valve body 1, thus increase system resistance, impact is for heat flow.
Claims (6)
1. low voltage drive blade type gate valve body, comprise valve body (1), it is characterized in that: cavity (2) is set in valve body (1), cavity (2) side, bottom is communicated with entry end pipe joint (3), cavity (2) bottom opposite side is communicated with outlet end pipe joint (4), the position that cavity (2) inside communicates with entry end pipe joint (3) arranges ring-shaped step (5), ring-shaped step (5) inside forms the intake tunnel (11) communicated with entry end pipe joint (3), in cavity (2), flashboard (6) is installed, flashboard (6) and ring-shaped step (5) closely cooperate, valve seat (7) is installed at cavity (2) top, valve rod (8) is set in valve seat (7), sealed by Sealing between valve rod (8) and valve seat (7), valve rod (8) bottom arranges outside thread (9), outside thread (9) is installed swivel nut (10), swivel nut (10) is connected with flashboard (6), valve rod (8) can pass through outside thread (9) when rotating and swivel nut (10) drives flashboard (6) lifting, intake tunnel (11) in ring-shaped step (5) can be closed when extreme lower position is down to by flashboard (6).
2. low voltage drive blade type gate valve body according to claim 1, it is characterized in that: described Sealing comprises the bulge loop (12) being arranged on valve rod (8) border, bulge loop (12) end face and valve seat (7) contact internal walls, bulge loop (12) below arranges briquetting (13), and briquetting (13) is connected with valve seat (7) by screw thread.
3. low voltage drive blade type gate valve body according to claim 2, is characterized in that: arrange seal washer (14) between briquetting (13) and bulge loop (12).
4. low voltage drive blade type gate valve body according to claim 1 and 2, is characterized in that: arrange O-ring seal (15) between valve rod (8) and valve seat (7).
5. low voltage drive blade type gate valve body according to claim 1, is characterized in that: described swivel nut (10) is positioned at the side of flashboard (6) away from ring-shaped step (5).
6. low voltage drive blade type gate valve body according to claim 1, it is characterized in that: the plane that described flashboard (6) coordinates with ring-shaped step (5) is clinoplain (16), the plane that described ring-shaped step (5) coordinates with flashboard (6) is annular slope (17), and clinoplain (16) and annular slope (17) are parallel to each other and opposed vertical direction tilts 1 °-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123560.0A CN104653801A (en) | 2015-03-20 | 2015-03-20 | Low voltage driven knife-type gate valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123560.0A CN104653801A (en) | 2015-03-20 | 2015-03-20 | Low voltage driven knife-type gate valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653801A true CN104653801A (en) | 2015-05-27 |
Family
ID=53245264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510123560.0A Pending CN104653801A (en) | 2015-03-20 | 2015-03-20 | Low voltage driven knife-type gate valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066582A (en) * | 2023-03-07 | 2023-05-05 | 山东宏丰智能装备有限公司 | Automatic pressure relief single valve seat gate valve |
-
2015
- 2015-03-20 CN CN201510123560.0A patent/CN104653801A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066582A (en) * | 2023-03-07 | 2023-05-05 | 山东宏丰智能装备有限公司 | Automatic pressure relief single valve seat gate valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |
|
| RJ01 | Rejection of invention patent application after publication |