CN205173531U - Knife gate valve - Google Patents
Knife gate valve Download PDFInfo
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- CN205173531U CN205173531U CN201520866399.1U CN201520866399U CN205173531U CN 205173531 U CN205173531 U CN 205173531U CN 201520866399 U CN201520866399 U CN 201520866399U CN 205173531 U CN205173531 U CN 205173531U
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- knife gate
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Abstract
The utility model discloses a knife gate valve is cylinder, valve gap and valve body extremely down in proper order on the follow, the cylinder all passes through bolted connection with valve gap, valve gap and valve body, the valve body is equipped with valve door hole and sliding passage, be equipped with the flashboard in the sliding passage, the flashboard can cut out or open valve door hole, be equipped with the valve rod in the valve gap, the floodgate body is connected with the cylinder through the valve rod, its characterized in that, the valve body is equipped with the recess with valve cover connection's tip, is equipped with carbon packing and uses gland seal in the recess, the valve gap is equipped with the briquetting that matches with the gland with the tip that the valve body is connected. The utility model discloses a knife gate valve leakproofness is good, long service life.
Description
Technical field
The utility model relates to the control field in fluid delivery system, especially relates to the knife gate valve in Valve controlling field.
Background technique
Knife gate valve is also known as cutter door gate valve, and blade type Parallel Slide Valves, enters China from the eighties.Less than in the vicennial time, its using scope extend to more wide all trades and professions from general field.From the coal separation of mine power plant, discharge refuse, deslagging.Develop into the sewage treatment in city, develop into the special pipeline systems such as food, health, medicine from general industrial pipeline.After extra-thin knife gate valve is little with its volume, flow resistance is little, lightweight, easy installation, the advantage knife gate valve such as quick detachable occur, a large amount of general cut-out class valves and regulating valve by replacement.To today, what global knife gate valve consumption was maximum is the U.S. and Japan.
Existing knife gate valve in use, take out of outside valve, and its sealing effect is not good by the mobile chamber setting that solid phase class fluid is easily brought into valve plate; On the other hand, such knife gate valve difficulty of processing is large, and sealed precision is difficult to control.And the control of transmission knife gate valve needs field control, cannot telecontrol be carried out, very inconvenient.
Conventional knives gate valve material is heavier, have a strong impact on and install and use, and the corrosion resistance of traditional material is poor, and long-time use there will be the situations such as knife gate valve leakage.
Summary of the invention
Problem to be solved in the utility model is, for above-mentioned shortcoming of the prior art, propose improvement project or alternative, especially one can realize telecontrol, and the knife gate valve that quality is lighter, seal is better, corrosion resistance is stronger.
For solving the problem, the scheme that the utility model adopts is as follows: a kind of knife gate valve, is followed successively by cylinder, valve gap and valve body from top to bottom; Described cylinder and valve gap, valve gap and valve body are all bolted; Described valve body is provided with valve hole and sliding channel; Be provided with lock body in described sliding channel, valve hole be closed or be opened to described lock body can; Valve rod is provided with in described valve gap; Described lock body is connected with cylinder by valve rod, it is characterized in that, the end that described valve body is connected with valve gap is provided with groove, is provided with graphite packing and uses gland seal in groove; The end that described valve gap is connected with valve body is provided with the briquetting mated with gland.
The Valve controlling of knife gate valve of the present utility model can do local and remote control, can also realize remote location display and remote control according to the requirement of user.Lightweight: body adopts carbon steel to make, and the more traditional gate valve weight saving of weight is about 20%-30%, and installation and maintenance are convenient.Use this valve can improve the closedown sealability of delivery pipeline system; sliding channel and lock body adopt packing seal, take filler double seal to stop to greatest extent to leak between valve gap and valve rod; to enhancing productivity, protection of the environment will play positive progradation.Sealing surface adopts high abrasion, resistant material, and adopt embedding technique, corrosion resistance is high, and wear resistance is good, thus makes life of valve long, and cost performance comparatively common valve improves 10 times.
Further, knife gate valve according to above-mentioned design proposal, described valve hole and sliding channel joint are provided with a circle Intermediate gasket; Compact siro spinning technology inside described Intermediate gasket and valve hole.
On the basis of above-mentioned design, one circle Intermediate gasket is set in valve hole and sliding channel joint, the sealability produced when can strengthen lock body whereabouts draught excluder aperture of door, promotes the sealing of knife gate valve.
Further, knife gate valve according to above-mentioned design proposal, the connecting end of described valve rod and lock body is provided with clamping part; Described clamping part comprises holding limb, cotter pin and bearing pin; Described lock body is provided with the connecting end of valve rod the joint mated with clamping part; Described joint and retaining part are in the midline position of lock body and valve rod.
The stability of the connection of valve rod and lock body determines knife gate valve stability operationally, therefore arranges a clamping part at the end of valve rod, coordinate the connecting end of brake application body upper end, and clamping part and connecting end is arranged on the midline position of lock body and valve rod.Ensure that valve rod can remain vertical all the time when lifting or decline lock body, make lock body to decline easily or to rise, reduce the friction between lock body and valve body.
Further, knife gate valve according to above-mentioned design proposal, described valve gap is hollow cylinder structure; Described valve gap outer surface is provided with many stiffening ribs.
Because valve gap is hollow-core construction, and valve gap needs to bear larger pressure when lock body promotes or decline, and for ensureing the ability to bear of valve gap, sets up many stiffening ribs in the outside of valve gap.
Further, knife gate valve according to above-mentioned design proposal, the end that described valve gap is connected with cylinder is provided with annular groove, is provided with graphite packing and seals with annular gland in annular groove; Described cylinder is provided with support, and is connected with valve gap by support, and when described support is connected with valve gap, support withstands annular gland.
The end be connected with cylinder at valve gap is provided with annular groove, is provided with graphite packing and seals with annular gland in annular groove.Cylinder arranges a support, and is connected with valve gap by cylinder by support, the axle of cylinder is connected with valve rod, and valve rod is promoted or descending motion under the promotion of cylinder.Support support when being connected with valve gap can withstand annular gland, makes annular gland have a pressure to graphite packing, thus ensures the sealing that graphite packing provides.
Further, knife gate valve according to above-mentioned design proposal, described graphite packing is Expanded graphite.
As a kind of preferred version, graphite packing is preferably Expanded graphite.
Further, knife gate valve according to above-mentioned design proposal, described valve body and valve gap are obtained by carbon steel.
As a kind of preferred version, valve body and valve gap adopt carbon steel to obtain.
Further, knife gate valve according to above-mentioned design proposal, described knife gate valve also comprises controller; Described controller is connected with cylinder, and controls qigong operation and stop.
Increase controller to knife gate valve, coordinate upper cylinder, the telecontrol of knife gate valve can be realized.
Technique effect of the present utility model is as follows: the Valve controlling of knife gate valve of the present utility model can do local and remote control, can also realize remote location display and remote control according to the requirement of user.Lightweight: body adopts carbon steel to make, and the more traditional gate valve weight saving of weight is about 20%-30%, and installation and maintenance are convenient.Use this valve can improve the closedown sealability of delivery pipeline system, between sliding channel valve body and valve gap, adopt packing seal; Take filler double seal to stop to greatest extent to leak between valve gap and valve rod, to enhancing productivity, protection of the environment will play positive progradation.Sealing surface adopts high abrasion, resistant material, and adopt embedding technique, corrosion resistance is high, and wear resistance is good, thus makes life of valve long, and cost performance comparatively common valve improves 10 times.
Accompanying drawing explanation
Fig. 1 is knife gate valve structural representation.
Wherein, 1-cylinder, 2-support, 3-annular gland, 4-graphite packing, 5-valve gap, 6-valve rod, 7-clamping part, 8-cotter pin, 9-bearing pin, 10-gland, 11-Intermediate gasket, 12-valve body, 13-valve hole, 14-sliding channel, 15-joint, 16-stiffening rib.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
A kind of knife gate valve, is followed successively by cylinder, valve gap and valve body from top to bottom; Described cylinder and valve gap, valve gap and valve body are all bolted; Described valve body is provided with valve hole and sliding channel; Be provided with lock body in described sliding channel, described flashboard can cut out or open valve hole; Valve rod is provided with in described valve gap; Described flashboard is connected with cylinder by valve rod, it is characterized in that, the end that described valve body is connected with valve gap is provided with groove, is provided with graphite packing and uses gland seal in groove; The end that described valve gap is connected with valve body is provided with the briquetting mated with gland.
Valve hole and sliding channel joint are provided with a circle Intermediate gasket; Compact siro spinning technology inside described Intermediate gasket and valve hole, the end that described valve gap is connected with cylinder is provided with annular groove, is provided with graphite packing and seals with annular gland in annular groove; Described cylinder is provided with support, and is connected with valve gap by support, and when described support is connected with valve gap, support withstands annular gland.
Claims (8)
1. a knife gate valve, is followed successively by cylinder, valve gap and valve body from top to bottom; Described cylinder and valve gap, valve gap and valve body are all bolted; Described valve body is provided with valve hole and sliding channel; Be provided with flashboard in described sliding channel, described flashboard can cut out or open valve hole; Valve rod is provided with in described valve gap; Described flashboard is connected with cylinder by valve rod, it is characterized in that, the end that described valve body is connected with valve gap is provided with groove, is provided with graphite packing and uses gland seal in groove; The end that described valve gap is connected with valve body is provided with the briquetting mated with gland.
2. knife gate valve according to claim 1, it is characterized in that, described valve hole and sliding channel joint are provided with a circle Intermediate gasket; Compact siro spinning technology inside described Intermediate gasket and valve hole.
3. knife gate valve according to claim 1, it is characterized in that, the connecting end of described valve rod and flashboard is provided with clamping part; Described clamping part comprises holding limb, cotter pin and bearing pin; Described flashboard is provided with the connecting end of valve rod the joint mated with clamping part; Described joint and retaining part are in the midline position of lock body and valve rod.
4. knife gate valve according to claim 1, it is characterized in that, described valve gap is hollow cylinder structure; Described valve gap outer surface is provided with many stiffening ribs.
5. knife gate valve according to claim 1, it is characterized in that, the end that described valve gap is connected with cylinder is provided with annular groove, is provided with graphite packing and seals with annular gland in annular groove; Described cylinder is provided with support, and is connected with valve gap by support, and when described support is connected with valve gap, support withstands annular gland.
6. knife gate valve according to claim 1 or 5, is characterized in that, described graphite packing is Expanded graphite.
7., according to the arbitrary described knife gate valve of claim 1-5, it is characterized in that, described valve body and valve gap are obtained by carbon steel.
8., according to the arbitrary described knife gate valve of claim 1-5, it is characterized in that, described knife gate valve also comprises controller; Described controller is connected with cylinder, and controls qigong operation and stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866399.1U CN205173531U (en) | 2015-11-03 | 2015-11-03 | Knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866399.1U CN205173531U (en) | 2015-11-03 | 2015-11-03 | Knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173531U true CN205173531U (en) | 2016-04-20 |
Family
ID=55737525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866399.1U Active CN205173531U (en) | 2015-11-03 | 2015-11-03 | Knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082656A1 (en) * | 2022-10-19 | 2024-04-25 | 上海凯研机械设备有限公司 | Fireproof remotely operating mechanism |
-
2015
- 2015-11-03 CN CN201520866399.1U patent/CN205173531U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082656A1 (en) * | 2022-10-19 | 2024-04-25 | 上海凯研机械设备有限公司 | Fireproof remotely operating mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |