CN116624605A - Leak-proof gate valve - Google Patents
Leak-proof gate valve Download PDFInfo
- Publication number
- CN116624605A CN116624605A CN202310634805.0A CN202310634805A CN116624605A CN 116624605 A CN116624605 A CN 116624605A CN 202310634805 A CN202310634805 A CN 202310634805A CN 116624605 A CN116624605 A CN 116624605A
- Authority
- CN
- China
- Prior art keywords
- valve body
- case
- cylinder
- valve
- pull rod
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
-
- 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
- F16K3/0227—Packings
-
- 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
- F16K3/16—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 special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—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 special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
-
- 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
-
- 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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The utility model provides a leak prevention push-pull valve, relate to a valve technical field, including confined valve body case, the case of setting in confined valve body incasement, drive the cylinder of case reciprocates, the case includes the valve core, fix the braced frame in valve core side, connect the pull rod on braced frame, the perforation of valve body case lid of valve body case top surface is worn out to the pull rod, be provided with first sealing washer between pull rod and perforation, preceding tuber pipe and back tuber pipe are connected respectively to valve body case both sides, the valve body incasement corresponds case board both sides limit department and is provided with guide groove, the tip of back tuber pipe is provided with the second sealing washer, the case board leans on the second sealing washer, the cylinder sets up at valve body case lateral surface, the piston rod of cylinder is connected on the pull rod. Compared with the prior art, the invention has the advantages of leakage prevention, simple structure and low cost.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a leakage-proof gate valve.
Background
The gate valve has very wide application, and is especially used in flue gas containing and dust removing pipelines in ceramic industry. The flue gas contains harmful gases (such as SO2 and the like) and dust particles, SO that the physical health of people and the surrounding natural environment are seriously affected, and the sealing performance on the pipeline is high. Particularly, when a bypass pipeline is needed to cut off or switch the trend of smoke and dust, the leakage-proof sealing effect of the gate valve plays a vital role in uninterrupted operation of the whole equipment.
Most of gate valves (shown in figure 7) applied at present have poor sealing performance of valve bodies, particularly poor sealing performance of sliding contact positions of valve cores when opened and closed, so that smoke and dust have an escape phenomenon; a sealing device is not arranged between the valve core and the inner cavity of the valve body, so that smoke and dust are not completely separated from each other, zero leakage is realized on a pipeline with smoke, and a common gate valve cannot be realized. At present, most devices for installing the electric baffle door are adopted to solve, but the common electric baffle door is provided with complicated devices such as an actuator, an actuating mechanism, a rotating mechanism and the like, so that the cost is high, the factors such as a space narrow limiting device and the like are probably not reduced, meanwhile, a method of blocking smoke by opening a fan for a long time to generate wind pressure is also required to prevent leakage, and the operation cost is too high, so that the problems of the installation of the electric baffle door when smoke and a dust removing pipeline with infrequent use times are solved in a low-high-temperature (< 150 ℃) environment, and the manufacturing cost and the operation cost are very high, so that the electric baffle door is hardly accepted by owners.
Disclosure of Invention
The invention aims to provide a leakage-proof gate valve which is leakage-proof, simple in structure and low in cost.
The invention discloses a leakage-proof gate valve, which is realized by comprising a closed valve body box, a valve core arranged in the closed valve body box and an air cylinder driving the valve core to move up and down, wherein the valve core comprises a valve core plate, a reinforcing frame fixed on the side surface of the valve core plate and a pull rod connected to the reinforcing frame, the pull rod penetrates out of a perforation of a valve body box cover on the top surface of the valve body box, a first sealing ring is arranged between the pull rod and the perforation, two sides of the valve body box are respectively connected with a front air pipe and a rear air pipe, guide grooves are arranged in the closed valve body box corresponding to two side edges of the valve core plate, the end part of the rear air pipe is provided with a second sealing ring, the valve core plate leans against the second sealing ring, the air cylinder is arranged on the outer side surface of the valve body box, and a piston rod of the air cylinder is connected to the pull rod.
When the valve core plate is closed, under the action of wind pressure of the front air pipe, the valve core plate is tightly abutted against the end part of the rear air pipe and the second sealing ring, so that wind cannot enter the rear air pipe, and the closed valve body box communicated with the front air pipe seals the wind in the closed valve body box; the first sealing ring is adopted, so that the wind can not leak from the perforation; the reinforcing frame is adopted, so that the rigidity of the valve core plate is enhanced, and meanwhile, the connecting pull rod is convenient.
Compared with the prior art, the invention has the advantages of leakage prevention, simple structure and low cost.
Drawings
FIG. 1 is a schematic view of a leak-proof gate valve of the present invention;
FIG. 2 is a schematic front view of a leak-proof gate valve of the present invention;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
FIG. 4 is a sectional view of B-B of FIG. 2
FIG. 5 is an enlarged view of a portion of FIG. 4C;
FIG. 6 is a schematic diagram of a valve core structure;
fig. 7 is a schematic diagram of a prior art structure.
Reference numerals illustrate: 1-a valve body box; 101-valve body case cover; 102-side sealing plates; 103-reinforcing ribs; 2-valve core; 201-valve core plate; 202-reinforcing a frame; 203-a pull rod; 3-cylinder; 4-a first sealing ring; 5-a front air pipe; 6-a rear air pipe; 7-a guide groove; 8-front square tube; 9-a rear square tube; 10-a second sealing ring; 11-a cylinder base; 12-connecting plates.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples:
as shown in fig. 1 to 6, the leakage-proof gate valve of the present invention comprises a closed valve body case 1, a valve core 2 arranged in the closed valve body case 1, a cylinder 3 driving the valve core 2 to move up and down, the valve body case 1 comprises a valve body case cover 101, side sealing plates 102, reinforcing ribs 103, the valve body case cover 101 is bent into a groove-shaped section by a steel plate, then is connected into a frame-shaped frame by the groove-shaped section, the side sealing plates 102 are welded and fixed on both sides of the frame-shaped frame to form the closed valve body case 1, the reinforcing ribs 103 fix the outer side surfaces of the side sealing plates 102 to strengthen the rigidity of the side sealing plates 102, the valve core 2 comprises a valve core plate 201, a reinforcing frame 202 fixed on the side surface of the valve core plate 201, a pull rod 203 connected on the reinforcing frame 202, the pull rod 203 penetrates out of the perforation 104 of the valve body case cover 101 on the top surface of the valve body case 1, a first sealing ring 4 is arranged between the pull rod 203 and the perforation 104, the two sides of the valve body case 1 are respectively connected with the front air pipe 5 and the rear air pipe 6, guide grooves 7 are arranged in the closed valve body case 1 corresponding to the two sides of the valve core plate 3 (for example, a front pipe 8 and a rear pipe 9 are respectively arranged along the front and the rear in groove-shaped sectional materials on the two sides of the valve body case cover 101, a gap between the front pipe 8 and the rear pipe 9 forms the guide groove 7), a second sealing ring 10 is arranged at the end part of the rear air pipe 6, a valve core plate 201 leans against the second sealing ring 10, the air cylinder 3 is arranged on the outer side surface of the valve body case 1, and a piston rod 301 of the air cylinder 3 is connected to the pull rod 203.
Preferably, the side seal plate 102 is provided with a cylinder base 11 near the rear square tube 9, the bottom of the cylinder 3 is connected to the cylinder base 11, the body of the cylinder 3 is fixedly connected to the reinforcing rib 103, the top of the pull rod 203 is connected with a connecting plate 12, and the connecting plate 12 floats above the cylinder 3, so that the piston rod of the cylinder 3 is connected to the connecting plate 12.
Claims (2)
1. The utility model provides a leak-proof push-pull valve, a serial communication port, including confined valve body case, the case of setting in confined valve body incasement, drive the cylinder of case reciprocates, the case includes the valve core, fix the braced frame in valve core side, connect the pull rod on braced frame, the perforation of valve body case lid of valve body case top surface is worn out to the pull rod, be provided with first sealing washer between pull rod and perforation, preceding tuber pipe and back tuber pipe are connected respectively to valve body case both sides, the confined valve body incasement corresponds case board both sides limit department and is provided with guide groove, the tip of back tuber pipe is provided with the second sealing washer, the case board leans on the second sealing washer, the cylinder sets up at valve body case lateral surface, the piston rod of cylinder is connected on the pull rod.
2. The leakage-proof gate valve according to claim 1, wherein a cylinder base is arranged at a position, close to the rear side pipe, of the side sealing plate, the bottom of the cylinder is connected to the cylinder base, the body of the cylinder is fixedly connected to the reinforcing rib, the top of the pull rod is connected with a connecting plate, and the connecting plate floats out to the upper surface of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310634805.0A CN116624605A (en) | 2023-05-31 | 2023-05-31 | Leak-proof gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310634805.0A CN116624605A (en) | 2023-05-31 | 2023-05-31 | Leak-proof gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116624605A true CN116624605A (en) | 2023-08-22 |
Family
ID=87621028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310634805.0A Pending CN116624605A (en) | 2023-05-31 | 2023-05-31 | Leak-proof gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116624605A (en) |
-
2023
- 2023-05-31 CN CN202310634805.0A patent/CN116624605A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |