CN204917245U - Gas -force ash conveying system and check valve thereof - Google Patents
Gas -force ash conveying system and check valve thereof Download PDFInfo
- Publication number
- CN204917245U CN204917245U CN201520700886.0U CN201520700886U CN204917245U CN 204917245 U CN204917245 U CN 204917245U CN 201520700886 U CN201520700886 U CN 201520700886U CN 204917245 U CN204917245 U CN 204917245U
- Authority
- CN
- China
- Prior art keywords
- valve
- rubber pad
- flow plate
- return valve
- valve 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.)
- Active
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a gas -force ash conveying system and check valve thereof, check valve include two hemispherical valve casings, and two valve casings cooperation backs form and hold the chamber, hold the intracavity be provided with with the inside wall complex circulation board of valve casing, the bottom of circulation board is provided with the rubber pad, the axle center of circulation board and rubber pad is provided with the through -hole, is provided with the valve rod with the through -hole cooperation, the end of valve rod pass the through -hole and lock nut fixed connection, the top of valve rod is provided with the spring of putting for the standing valve pole position with circulating between the board. The utility model also discloses a gas -force ash conveying system of including above -mentioned check valve. Above -mentioned check valve has been avoided losing elasticity owing to the ageing of rubber pad, leads to the ash to flow backwards and gets into compressed air pipe's phenomenon.
Description
Technical field
The utility model relates to mechanical engineering technical field, particularly a kind of non-return valve.The utility model also relates to a kind of pneumatic ash transmitting system with this non-return valve.
Background technology
Along with the fast development of China's economic construction, market increases day by day for the demand of the pneumatic ash transmitting system with non-return valve.
At present, ash is transported to grey storehouse by pneumatic ash transmitting system after being collected by flying dust in flue gas by the dust exhaustor of modern large-size thermal power plant.Dust conveying system by pressurized air, grey gas is mixed into certain proportion to form Condensed transportation.In order to ensure the good mixing of pressurized air and ash in defeated grey process, need in specific position, pressurized air to be injected in delivery duct.
Owing to having pressure in ash conveying pipe time conveying is carried out, flow backwards to not allow ash and enter compressed air piping, need to install non-return valve additional on the arm that each pressurized air enters ash pipeline, due to special working environment and ash cutting, here conventional non-return valve adopts rubber seal, and the elasticity by rubber forms check sealing.Long-play rubber pad is easily aging to follow the string, and cause ash to flow backwards and enter in compressed air tube, cause blocked primary orifice, influential system runs.
Therefore, how solving service life of non-return valve shorter is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of non-return valve, and this non-return valve can solve the problem that its sealing property is bad, service life is shorter.Another object of the present utility model is to provide a kind of pneumatic ash transmitting system comprising above-mentioned non-return valve.
For achieving the above object, the utility model provides a kind of non-return valve, comprises two hemispheric valve casings, forms container cavity after two described valve casings coordinate, be provided with the flow plate coordinated with the madial wall of described valve casing in described container cavity, the bottom of described flow plate is provided with rubber pad; The axle center of described flow plate and rubber pad is provided with through hole, valve rod is equipped with described through hole, the end of described valve rod passes described through hole and is fixedly connected with jam nut, is provided with the spring in order to fixing described stem position between the top of described valve rod and described flow plate.
Preferably, also loading plate is provided with between described rubber pad and described jam nut.
Preferably, the diameter of described valve rod is reduced by its top terminad.
Preferably, described flow plate, described rubber pad and described loading plate are provided with passing for described valve rod and the convergent through hole fitted tightly with described valve rod.
Preferably, two described valve casings form the annular groove in order to fixing described flow plate position after coordinating.
Preferably, two described valve casings are provided with the journal stirrup cooperatively interacted, and the described journal stirrup cooperatively interacted is bolted.
The utility model also provides a kind of pneumatic ash transmitting system, the ash pipeline arm comprising ash pipeline and be connected with described ash pipeline, and described ash pipeline arm is provided with non-return valve; Described non-return valve is the non-return valve described in above-mentioned any one.
Relative to above-mentioned background technology, the non-return valve that the utility model provides, comprises two hemispheric valve casings, and in order to arrange flow plate therein after two hemispheric valve casings cooperations; The bottom of flow plate is provided with rubber pad; Because the upper and lower two ends of valve casing are provided with breather port, the air of non-return valve outside is contacted with flow plate by breather port; Flow plate is provided with valve rod herein, the spring between valve rod and flow plate is utilized to form even failure-free elastic force, so just, flow plate can be realized and rubber pad remains unchanged relative to the position of valve casing, thus the sealing realizing non-return valve is reliable, avoid due to the aging of rubber pad and follow the string, causing ash to flow backwards and enter the phenomenon of compressed air tube.
In addition, the utility model also relates to a kind of pneumatic ash transmitting system, and this pneumatic ash transmitting system comprises the non-return valve being arranged on ash pipeline arm, and the phenomenon making pneumatic ash transmitting system that ash refluence can be avoided to enter compressed air tube occurs.
Accompanying drawing explanation
The structural representation of the non-return valve that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the structural representation that the flow plate in Fig. 1 is connected with valve rod.
Wherein:
Loading plate 1, valve casing 2, jam nut 3, rubber pad 4, flow plate 5, valve rod 6, spring 7.
Detailed description of the invention
Core of the present utility model is to provide a kind of non-return valve, and this non-return valve can improve its sealing property, improves service life; Another core of the present utility model is to provide a kind of pneumatic ash transmitting system comprising above-mentioned non-return valve.
In order to make those skilled in the art understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 and Fig. 2, the structural representation of the non-return valve that Fig. 1 provides for the utility model embodiment; Fig. 2 is the structural representation that the flow plate in Fig. 1 is connected with valve rod.
The non-return valve that the utility model relates to, comprises after two hemispheric valve casings, 2, two valve casings 2 coordinate and forms container cavity, specifically as shown in Figure of description 1; Can be found out by Figure of description 1, the two ends up and down of two valve casings 2 are respectively arranged with breather port, are used for realizing the inflow of outside air.In addition, the material of two valve casings 2 can be cast iron or other, will repeat no more herein herein.
Form container cavity after two valve casings 2 coordinate, the madial wall of this container cavity can match with flow plate 5, thus realizes flow plate 5 and remain unchanged relative to the position of container cavity; The bottom of flow plate 5 arranges rubber pad 4, and flow plate 5 and rubber pad 4 are provided with through hole, herein the preferred axle center place this through hole being arranged on flow plate 5 and rubber pad 4; Through hole coordinates with valve rod 6, and the end of valve rod 6 is fixedly connected with jam nut 3 through after through hole from top to bottom, is provided with spring 7 between valve rod 6 and flow plate 5.
, arrange limiting component on the top of valve rod 6 herein preferably, one end of spring 7 contacts with the limiting component on valve rod 6 top, and the other end contacts with flow plate 5, thus utilizes the elastic force of spring 7 to flow plate 5 applied thrust; Because flow plate 5 and the through hole of rubber pad 4 are arranged on respective shaft core position, make the thrust-neutral that the spring 7 through through hole can apply flow plate 5, thus make the sealing of non-return valve reliable.
Adopt above-mentioned set-up mode, just can solve non-return valve in use for some time, seal insecure problem; The thrust utilizing spring 7 to apply herein can effective this problem.
In addition, the preferred range by non-return valve is set to 5mm herein; And the thickness of rubber pad 4 is set to 8mm, the material of rubber pad 4 is viton, so, just can reach the mode of operation of non-return valve optimum.
The preferred external diameter of valve rod 6 and spring 7 diameter compatible conjunctions leaves certain interval herein, and the rigidity of spring 7 is consolidated, and so, spring 7 can not unstability be toppled under pressure, thus guarantees that the sealing of non-return valve is reliable.
Further, rubber pad 4 bottom of this paper is also provided with loading plate 1; That is, non-return valve is disposed with flow plate 5, rubber pad 4 and loading plate 1 from top to bottom, and this three fits tightly.Certainly, loading plate 1 also should be provided with through hole, makes valve rod 6 to pass flow plate 5, rubber pad 4 and loading plate 1 successively and to coordinate with jam nut 3.
It should be noted that, the end of valve rod 6 should be provided with screw thread, and this screw thread can match with jam nut 3, thus guarantee flow plate 5, rubber pad 4 and loading plate 1 three connection reliable.Certainly, the concrete size of jam nut 3 can be determined according to actual conditions, does not do too much restriction herein.
Utilize loading plate 1 pair of flow plate 5 and rubber pad 4 to support in above-mentioned, thus better rubber pad 4 be fixed, guarantee flow plate 5, rubber pad 4 and loading plate 1 three connection reliable.
Herein according to actual needs, the diameter of valve rod 6 is reduced by its top terminad; And flow plate 5, rubber pad 4 and loading plate 1 are provided with passing for valve rod 6 and the convergent through hole fitted tightly with valve rod 6.
That is, for optimizing structure, valve rod 6 is set to the form of similar stepped shaft, the largest diameter on the top of valve rod 6, the section diameter matched with the through hole of flow plate 5 is little compared with its top end diameter, the section diameter matched with the through hole of rubber pad 4 is little compared with the diameter of the part that it matches with the through hole of flow plate 5, by that analogy, the diameter of valve rod 6 is reduced by its top terminad, the various piece that the diameter of valve rod 6 is different coordinates with the through hole of flow plate 5, rubber pad 4 and loading plate 1 respectively, so just can realize sealing failure-free object better.
Certainly; according to actual needs; flow plate 5, rubber pad 4 and loading plate 1 three are not only connected by coordinating with the through hole of flow plate 5, rubber pad 4 and loading plate 1 by valve rod 6; valve rod 6 can also adopt other connection modes flow plate 5, rubber pad 4 and loading plate 1 three to be fixed, no matter valve rod 6 adopt which kind of mode to fix flow plate 5, rubber pad 4 and loading plate 1 three all should within protection domain herein.
In addition, the madial wall of two valve casings 2 can also be provided with annular groove, and the position of flow plate 5 can be fixed by this annular groove; That is, the thickness of annular groove is identical with the thickness of flow plate 5, thus realizes the fixing object in the position of flow plate 5; Specifically as shown in Figure of description 1.Certainly, the parts such as friction lining can also be provided with between annular groove and flow plate 5, to guarantee that the position of annular groove and flow plate 5 is fixed.
In addition, the lateral wall of two valve casings 2 can also be provided with journal stirrup, and after two valve casings 2 coordinate, journal stirrup mutually can mate and connect for bolt.Certainly, the concrete shape structure of journal stirrup can have multiple set-up mode, will repeat no more herein.
The utility model also relates to a kind of pneumatic ash transmitting system, the ash pipeline arm comprising ash pipeline and be connected with ash pipeline, and ash pipeline arm is provided with non-return valve; The non-return valve being arranged at ash pipeline arm is the non-return valve described by above-described embodiment; Other parts of pneumatic ash transmitting system with reference to prior art, no longer can be launched herein.
Above pneumatic ash transmitting system provided by the utility model and non-return valve thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (7)
1. a non-return valve, comprise two hemispheric valve casings (2), container cavity is formed after two described valve casings (2) coordinate, be provided with the flow plate (5) coordinated with the madial wall of described valve casing (2) in described container cavity, the bottom of described flow plate (5) is provided with rubber pad (4); It is characterized in that, the axle center of described flow plate (5) and rubber pad (4) is provided with through hole, valve rod (6) is equipped with described through hole, the end of described valve rod (6) passes described through hole and is fixedly connected with jam nut (3), is provided with the spring (7) in order to fixing described valve rod (6) position between the top of described valve rod (6) and described flow plate (5).
2. non-return valve according to claim 1, is characterized in that, is also provided with loading plate (1) between described rubber pad (4) and described jam nut (3).
3. non-return valve according to claim 2, is characterized in that, the diameter of described valve rod (6) is reduced by its top terminad.
4. non-return valve according to claim 3, it is characterized in that, described flow plate (5), described rubber pad (4) and described loading plate (1) are provided with passing for described valve rod (6) and the convergent through hole fitted tightly with described valve rod (6).
5. the non-return valve according to Claims 1-4 any one, is characterized in that, forms the annular groove in order to fixing described flow plate (5) position after two described valve casings (2) coordinate.
6. non-return valve according to claim 5, is characterized in that, two described valve casings (2) are provided with the journal stirrup cooperatively interacted, and the described journal stirrup cooperatively interacted is bolted.
7. a pneumatic ash transmitting system, the ash pipeline arm comprising ash pipeline and be connected with described ash pipeline, described ash pipeline arm is provided with non-return valve; It is characterized in that, described non-return valve is the non-return valve described in the claims 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700886.0U CN204917245U (en) | 2015-09-11 | 2015-09-11 | Gas -force ash conveying system and check valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700886.0U CN204917245U (en) | 2015-09-11 | 2015-09-11 | Gas -force ash conveying system and check valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204917245U true CN204917245U (en) | 2015-12-30 |
Family
ID=54966393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520700886.0U Active CN204917245U (en) | 2015-09-11 | 2015-09-11 | Gas -force ash conveying system and check valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204917245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823843A (en) * | 2019-03-18 | 2019-05-31 | 杭州回水科技股份有限公司 | Pneumatic conveying pipeline check intake valve |
| CN110432781A (en) * | 2019-08-26 | 2019-11-12 | 珠海格力电器股份有限公司 | A kind of more steam room cooking wares and the steam box with the vessel |
-
2015
- 2015-09-11 CN CN201520700886.0U patent/CN204917245U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823843A (en) * | 2019-03-18 | 2019-05-31 | 杭州回水科技股份有限公司 | Pneumatic conveying pipeline check intake valve |
| CN109823843B (en) * | 2019-03-18 | 2024-04-05 | 杭州回水科技股份有限公司 | Check air inlet valve for pneumatic conveying pipeline |
| CN110432781A (en) * | 2019-08-26 | 2019-11-12 | 珠海格力电器股份有限公司 | A kind of more steam room cooking wares and the steam box with the vessel |
| CN110432781B (en) * | 2019-08-26 | 2024-01-26 | 珠海格力电器股份有限公司 | Cooking vessel with multiple steaming chambers and steaming box with cooking vessel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912698B (en) | A kind of bleeder valve | |
| CN204917245U (en) | Gas -force ash conveying system and check valve thereof | |
| CN203717965U (en) | Four-eccentric butterfly valve structure with purging function | |
| CN204624363U (en) | With the ash-storing bin of broken arch system | |
| CN204042902U (en) | A kind of new type nozzle being applicable to gas generator | |
| CN204643168U (en) | A kind of powder continus convergence pumping system | |
| CN205064944U (en) | Hangingly in small -bore valve clack can dismantle check valve fast | |
| CN204051975U (en) | A kind of denitration spray gun | |
| CN204042088U (en) | Automatic suberization valve | |
| CN204458479U (en) | For the oil pipe of electric blower main oil pump gateway | |
| CN205347351U (en) | Defeated grey house steward's of gas producer anti -clogging device | |
| CN204943010U (en) | A kind of type that patches seamless steel pipe of modified node method | |
| CN204692857U (en) | A kind of pipe arrangement manifold | |
| CN204284734U (en) | A kind of structure for the conversion of pumping hole footpath | |
| CN203842331U (en) | Shooting type vibration air hammer of upper air exhausting drying machine | |
| CN204226682U (en) | A kind of quick position installs choke stop evacuation valve flap assembly | |
| CN203784388U (en) | Release valve | |
| CN206913748U (en) | Large pressing machine air pipe line | |
| CN207497677U (en) | A kind of conveying device of nano silica fume | |
| CN106122555A (en) | A kind of oil-free lining | |
| CN104989480A (en) | Butt joint valve rod of double-distribution opposed engine | |
| CN206159527U (en) | Cylinder bleeder valve | |
| CN203155454U (en) | Remote gas supply device for paint workshop | |
| CN203963267U (en) | By the vertical airduct of wall | |
| CN204628823U (en) | For the link that automobile hard tube connects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |