CN113063027A - Water hammer-proof check valve - Google Patents
Water hammer-proof check valve Download PDFInfo
- Publication number
- CN113063027A CN113063027A CN202110446068.2A CN202110446068A CN113063027A CN 113063027 A CN113063027 A CN 113063027A CN 202110446068 A CN202110446068 A CN 202110446068A CN 113063027 A CN113063027 A CN 113063027A
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- China
- Prior art keywords
- check valve
- valve
- water outlet
- protection plate
- water hammer
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The invention provides a water hammer prevention check valve with a simple structure and a water hammer prevention function, which comprises a check valve body, a protection plate, a fluid channel arranged in the check valve body, a water inlet channel and a water outlet channel which are arranged along the radial direction of the check valve body, a first valve seat and a second valve seat which are arranged on the water inlet channel and the water outlet channel of the check valve body, and a valve rod which can be slidably arranged on the second valve seat in a penetrating way, wherein a valve clack used for sealing the water inlet channel and the water outlet channel is arranged on the valve rod, the protection plate is slidably sleeved on the valve rod, the protection plate is positioned above the valve clack, the diameter of the protection plate is larger than that of the valve clack and smaller than that of the water outlet channel.
Description
Technical Field
The invention relates to the field of valves, in particular to a check valve for a water hammer.
Background
The silencing check valve is a valve which automatically opens and closes a valve clack by medium flowing, and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a silencing check valve and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. Check valves may also be used to provide make-up lines to auxiliary systems where the pressure may rise above the system pressure. The check valve can be mainly divided into a swing check valve and a lift check valve. The poppet check valve is similar in construction to a shut-off valve in that media flows in from the inlet end (lower side) and out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. When the water pump stops working or the valve is closed, the water hammer effect is generated by the backwater inside the valve body, the valve clack in the valve body is damaged, the service life of the valve clack is influenced, and the service life of the check valve is further influenced.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides a water hammer-proof check valve with a simple structure and a water hammer-proof function.
In order to achieve the purpose, the technical scheme of the invention is to provide a water hammer prevention check valve, which comprises a check valve body, a protection plate, a fluid channel arranged in the check valve body, a water inlet channel and a water outlet channel which are arranged along the radial direction of the check valve body, a first valve seat and a second valve seat which are arranged on the water inlet channel and the water outlet channel of the check valve body, and a valve rod which can be slidably arranged on the second valve seat in a penetrating way, wherein a valve clack used for sealing the water inlet channel and the water outlet channel is arranged on the valve rod, the protection plate is slidably sleeved on the valve rod, the protection plate is positioned above the valve clack, the diameter of the protection plate is larger than that of the valve clack and smaller than that of the.
The further improvement is that: the pressure reducing device comprises a first magnetic block which is fixedly arranged in the valve clack, and a second magnetic block which is magnetically repellent with the first magnetic block is arranged in the protective plate.
The further improvement is that: and an anti-collision device for preventing the protection plate from impacting the valve clack is arranged between the protection plate and the valve clack.
The further improvement is that: the anti-collision device is a supporting spring, the supporting spring is sleeved on the valve rod, one end of the supporting spring is abutted against the valve clack, and the other end of the supporting spring is abutted against the protection plate.
The further improvement is that: the protection plate is provided with a groove, and a plurality of medium channels penetrating through the protection plate are arranged on the protection plate.
The further improvement is that: the medium channel is a Z-shaped medium channel.
The further improvement is that: and a third magnetic block which is magnetically attracted with the first magnetic block is fixedly arranged on the first valve seat.
The further improvement is that: the second valve seat is arranged on the water outlet channel through a first connecting device, and the valve clack is arranged on the valve rod through a second connecting device.
The further improvement is that: the first connecting device comprises a connecting sleeve, the second valve seat is fixedly arranged in the connecting sleeve, the connecting sleeve is arranged on the check valve body through threaded connection, and a sealing device is arranged between the connecting sleeve and the check valve body.
The further improvement is that: the check valve comprises a check valve body, a fluid channel and a pressure reducing device, wherein the check valve body is provided with a plurality of pressure reducing water outlet channels, one ends of the pressure reducing water outlet channels extend to the water outlet channels and are communicated with the water outlet channels, the other ends of the pressure reducing water outlet channels are communicated with the fluid channel, and the pressure reducing device is arranged in the pressure reducing channels.
The further improvement is that: the pressure reducing device comprises a sealing ball, the sealing ball is arranged in the pressure reducing water outlet channel and is positioned at one end of the fluid channel, and an elastic piece is arranged between the inner wall of the pressure reducing water outlet channel and the sealing ball.
The further improvement is that: one end of the elastic part is fixedly connected with the sealing ball, and the other end of the elastic part is fixedly connected with the inner wall of the water outlet channel.
The further improvement is that: the pressure-reducing water outlet channel is positioned at the end of the water outlet channel and is obliquely arranged.
The further improvement is that: the second connecting device is as follows: the valve clack is in threaded connection with the valve rod.
The further improvement is that: the outer end of the check valve body is fixedly wrapped with silencing cotton.
The further improvement is that: a first inclined plane is formed on the valve clack, and a second inclined plane is formed on the first valve seat.
The further improvement is that: the pressure-reducing water outlet channel is positioned at the end of the sealing ball and is provided with a chamfer.
The invention has the advantages and beneficial effects that:
1. simple structure can effectively prevent the influence of water hammer to the valve clack. Through the protection shield, when the check valve non return, when fluid medium backward flow, strike on the protection shield, because first magnetic path and second magnetic path magnetic force repel each other, hinder fluid medium downward impact, under the effect of first magnetic path and second magnetic path, the entering fluid passage internal pressure has been reduced, and the protection shield is as first impact thing, further protect the valve clack, the effectual water hammer effect that prevents the valve clack, the life of improvement valve clack, and then make the valve clack keep the best sealed effect, reduce the change maintenance of valve clack, and use cost is reduced.
2. The supporting spring can avoid the protection plate from impacting the valve clack to damage the valve clack, and can further reduce the pressure when the fluid medium flows back, so that the water hammer effect is further prevented.
3. The groove can enable the fluid medium to impact, direct impact force of the fluid medium can be dispersed, the service life of the protection plate is prolonged, the medium channel can enable the fluid to directly flow through, water outlet efficiency when the check valve is opened can be improved, and pipeline conveying efficiency is improved. And the Z-shaped medium channel can enable downward fluid medium to impact the inner wall of the channel after entering the Z-shaped medium channel, so that the decompression effect is achieved, the phenomenon that the downward fluid medium directly flows out through the medium channel is avoided, and the protection effect of the protection plate is improved.
4. The third magnetic block and the first magnetic block can attract each other, so that the valve clack can be better sealed on the water inlet channel opening, and loss caused by backflow of fluid media is avoided.
5. The first connecting device and the second connecting device can conveniently replace accessories in the check valve body, the utilization rate of the check valve body is improved, and resources can be continuously utilized.
6. The noise elimination cotton can reduce the noise that the check valve produced and influence production and life, improves the user and uses experience and feels, is favorable to the popularization of product.
7. The first inclined plane and the second inclined plane can further improve the sealing performance of the check valve body and avoid backflow of fluid media.
8. The pressure reduction water outlet channel and the pressure reduction device channel can reduce the pressure of the inner wall periphery of the water outlet channel at the position where the protective plate does not extend to the pole, so that the valve clack is better protected, the integral water hammer effect of the check valve is improved, and the water hammer prevention effect is further improved.
9. The slope of the water inlet end of the pressure-reducing water outlet channel is arranged to enable the fluid to directly flow into the pressure-reducing water outlet channel better, and the effect of the water hammer is further improved. .
10. The chamfer can make the sealing ball return better, get into in the water outlet channel of decompression.
Drawings
Fig. 1 is a schematic view of a cut-away structure of a check valve of a waterproof hammer according to an embodiment of the present invention.
Fig. 2 is a schematic top view of a check valve for a water hammer according to the present invention.
FIG. 3 is a schematic diagram of the house loan structure at location A of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-3, a check valve for preventing water hammer comprises a check valve body 1, a protection plate 8, a fluid passage arranged in the check valve body 1, a water inlet passage 2 and a water outlet passage 3 radially arranged along the check valve body 1, a first valve seat 5 and a second valve seat 4 arranged in the water inlet passage 2 and the water outlet passage 3 of the check valve body 1, and a valve rod 7 slidably arranged on the second valve seat 4, wherein a valve clack 6 for closing the water inlet passage 2 and the water outlet passage 3 is arranged on the valve rod 7, the protection plate 8 is slidably sleeved on the valve rod 7, the protection plate 8 is positioned above the valve clack 6, the diameter of the protection plate 8 is larger than the valve clack 6 and smaller than the water outlet passage 3, a pressure reducing device for reducing water pressure is arranged on the protection plate 8, the pressure reducing device comprises a first magnetic block 11, the first magnetic block 11 is fixedly arranged in the valve cla, a second magnetic block (not shown) magnetically repelling the first magnetic block 11 is arranged in the protective plate 8. Through being provided with protection shield 8, when the check valve non return, when fluid medium backward flow, strike on protection shield 8, because first magnetic path 11 and second magnetic path magnetic force repel each other, hinder fluid medium downward impact, under the effect of first magnetic path 11 and second magnetic path, the fluid passage internal pressure has been reduced to the entering, and protection shield 8 is as first impact thing, further protect valve clack 6, the effectual water hammer effect to valve clack 6 that prevents, improve valve clack 6's life, and then make valve clack 6 keep the best sealed effect, reduce valve clack 6's change maintenance, and use cost is reduced.
In order to prevent the protection plate 8 from sliding downwards to impact the valve clack 6 and damage the valve clack 6 when the protection plate 8 bears backflow, a support spring 10 for preventing the protection plate 8 from impacting the valve clack 6 is arranged between the protection plate 8 and the valve clack 6, the support spring 10 is sleeved on the valve rod 7, one end of the support spring 10 is abutted against the valve clack 6, and the other end of the support spring 10 is abutted against the protection plate 8. The supporting spring 10 not only can prevent the protecting plate 8 from impacting the valve flap 6, but also can further reduce the pressure when the fluid medium flows back, and further prevent the water hammer effect.
In order to prolong the service life of the protection plate 8, the protection plate 8 is provided with a groove 12, the protection plate 8 is provided with a plurality of medium channels 9 penetrating through the protection plate 8, and the medium channels 9 are Z-shaped medium channels. The protective plate 8 is provided with the groove 12, so that fluid media can be impacted, the direct impact force of the fluid media can be dispersed, the service life of the protective plate is prolonged, the media channel 9 can enable the fluid to directly flow through, the water outlet efficiency when the check valve is opened can be increased, and the pipeline conveying efficiency is improved. And the Z-shaped medium channel can enable downward fluid medium to impact the inner wall of the channel after entering the Z-shaped medium channel, so that the decompression effect is achieved, the downward fluid medium is prevented from directly flowing out through the medium channel, and the protection effect of the protection plate 8 is improved.
In order to reduce the pressure of the inner wall of the water outlet channel 3 at the position where the protective plate does not extend to the pole and to better protect the valve flap 6, the check valve body 1 is provided with a plurality of pressure-reducing water outlet channels 19, one end of each pressure-reducing water outlet channel 19 extends to the water outlet channel 3 and is communicated with the water outlet channel 3, the other end of each pressure-reducing water outlet channel 19 is communicated with the fluid channel, a sealing ball 22 is slidably arranged in the pressure-reducing water outlet channel 19, the sealing ball 22 is arranged in the pressure-reducing water outlet channel 19 and is located at the end of the fluid channel, an extension spring 20 is arranged between the inner wall of the pressure-reducing water outlet channel 19 and the sealing ball 22, one end of the extension spring 20 is fixedly connected with the sealing ball 22, and the other end of the extension. When the fluid medium flows back, the fluid medium flows downwards from the inner wall of the water outlet channel 3, flows into the pressure-reducing water outlet channel 19 at the moment, pushes the sealing ball 22 into the fluid channel, stretches the extension spring 20 when pushing the sealing ball 22, reduces the pressure of the fluid medium, realizes the treatment of the whole water hammer effect, and further improves the effect of the water hammer.
In order to enable a better direct flow of fluid into the pressure-reducing outlet channel 19, the pressure-reducing outlet channel 19 is arranged obliquely 21 at the end of the outlet channel 3.
In order to enable the sealing ball 22 to return better, the water enters the pressure-reducing water outlet channel 19, and the end, located at the sealing ball 22, of the pressure-reducing water outlet channel 19 is provided with a chamfer 23.
In order to prevent the valve clack 6 from being affected by the pressure reduction of the fluid medium and other accessories, a third magnetic block 14 which is magnetically attracted with the first magnetic block 11 is fixedly arranged on the first valve seat 5. The third magnetic block 14 is attracted to the first magnetic block 11, so that the valve clack 6 can be better sealed on the opening of the water inlet channel 2, and loss caused by backflow of fluid media is avoided.
In order to conveniently change the accessory in the check valve body 1, improve the utilization ratio of check valve body 1, make resource sustainable use, second valve seat 4 is located through first connecting device on the water outlet channel 3, first connecting device includes adapter sleeve 17, second valve seat 4 is fixed to be located in adapter sleeve 17, adapter sleeve 17 is located through threaded connection on the check valve body 1, be equipped with sealing washer 18 between adapter sleeve 17 and the check valve body 1, valve clack 6 and valve rod 7 threaded connection.
In order to reduce the noise generated by the check valve and influence the production and life, the outer end part of the check valve body 1 is fixedly coated with silencing cotton 16.
In order to further improve the sealing performance of the check valve body, the valve flap 6 is provided with a first inclined surface 13, and the first valve seat 5 is provided with a second inclined surface 15.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a water hammer prevention check valve, includes the check valve body, sets up the fluidic channel in the check valve body, along the radial inhalant canal and the exhalant canal of seting up of check valve body, locate check valve body inhalant canal and exhalant canal's first disk seat and second disk seat, slidable wear to locate the valve rod of second disk seat, be equipped with on the valve rod and be used for the inclosed valve clack of inhalant canal and exhalant canal, its characterized in that: the valve rod is sleeved with the protective plate in a sliding mode, the protective plate is located above the valve clack, the diameter of the protective plate is larger than that of the valve clack and smaller than the water outlet channel, and the protective plate is provided with a pressure reducing device used for reducing water pressure.
2. The water hammer resistant check valve of claim 1, wherein: the pressure reducing device comprises a first magnetic block which is fixedly arranged in the valve clack, and a second magnetic block which is magnetically repellent with the first magnetic block is arranged in the protective plate.
3. The water hammer resistant check valve of claim 1, wherein: and an anti-collision device for preventing the protection plate from impacting the valve clack is arranged between the protection plate and the valve clack.
4. The water hammer resistant check valve of claim 1, wherein: the anti-collision device is a supporting spring, the supporting spring is sleeved on the valve rod, one end of the supporting spring is abutted against the valve clack, and the other end of the supporting spring is abutted against the protection plate.
5. The water hammer resistant check valve of claim 1, wherein: the protection plate is provided with a groove, and a plurality of medium channels penetrating through the protection plate are arranged on the protection plate.
6. The water hammer resistant check valve of claim 5, wherein: the medium channel is a Z-shaped medium channel.
7. The water hammer resistant check valve of claim 2, wherein: and a third magnetic block which is magnetically attracted with the first magnetic block is fixedly arranged on the first valve seat.
8. The water hammer resistant check valve of claim 1, wherein: the second valve seat is arranged on the water outlet channel through a first connecting device, and the valve clack is arranged on the valve rod through a second connecting device.
9. The water hammer resistant check valve of claim 8, wherein: the first connecting device comprises a connecting sleeve, the second valve seat is fixedly arranged in the connecting sleeve, the connecting sleeve is arranged on the check valve body through threaded connection, and a sealing device is arranged between the connecting sleeve and the check valve body.
10. The water hammer resistant check valve of claim 1, wherein: the check valve comprises a check valve body, a fluid channel and a pressure reducing device, wherein the check valve body is provided with a plurality of pressure reducing water outlet channels, one ends of the pressure reducing water outlet channels extend to the water outlet channels and are communicated with the water outlet channels, the other ends of the pressure reducing water outlet channels are communicated with the fluid channel, and the pressure reducing device is arranged in the pressure reducing channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446068.2A CN113063027B (en) | 2021-04-25 | 2021-04-25 | Waterproof hammer check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446068.2A CN113063027B (en) | 2021-04-25 | 2021-04-25 | Waterproof hammer check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113063027A true CN113063027A (en) | 2021-07-02 |
| CN113063027B CN113063027B (en) | 2023-05-12 |
Family
ID=76567640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110446068.2A Active CN113063027B (en) | 2021-04-25 | 2021-04-25 | Waterproof hammer check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113063027B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412310A (en) * | 2023-04-11 | 2023-07-11 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871539A (en) * | 2010-07-08 | 2010-10-27 | 厦门松霖科技有限公司 | Magnetic check valve |
| CN202545901U (en) * | 2012-04-26 | 2012-11-21 | 王海鹏 | Ceramic microresistance ball check valve |
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN207848502U (en) * | 2018-02-12 | 2018-09-11 | 广州启云机械有限公司 | A kind of liquid-ring type buffering damping check valve |
| CN208295209U (en) * | 2018-04-19 | 2018-12-28 | 广州新星阀门实业有限公司 | A kind of check-valves that noise is small |
| CN208503573U (en) * | 2018-05-15 | 2019-02-15 | 苏素珍 | A kind of boxing formula solid forging lift check valve |
| CN110173580A (en) * | 2019-05-07 | 2019-08-27 | 山东省田庄煤矿有限公司 | A kind of resistance to vibration bottom valve |
| CN211203001U (en) * | 2019-12-25 | 2020-08-07 | 浙江安腾阀门有限公司 | Check valve capable of weakening water hammer phenomenon |
| CN211649181U (en) * | 2020-01-07 | 2020-10-09 | 祥安消防科技有限公司 | Silencing check valve |
-
2021
- 2021-04-25 CN CN202110446068.2A patent/CN113063027B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871539A (en) * | 2010-07-08 | 2010-10-27 | 厦门松霖科技有限公司 | Magnetic check valve |
| CN202545901U (en) * | 2012-04-26 | 2012-11-21 | 王海鹏 | Ceramic microresistance ball check valve |
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN207848502U (en) * | 2018-02-12 | 2018-09-11 | 广州启云机械有限公司 | A kind of liquid-ring type buffering damping check valve |
| CN208295209U (en) * | 2018-04-19 | 2018-12-28 | 广州新星阀门实业有限公司 | A kind of check-valves that noise is small |
| CN208503573U (en) * | 2018-05-15 | 2019-02-15 | 苏素珍 | A kind of boxing formula solid forging lift check valve |
| CN110173580A (en) * | 2019-05-07 | 2019-08-27 | 山东省田庄煤矿有限公司 | A kind of resistance to vibration bottom valve |
| CN211203001U (en) * | 2019-12-25 | 2020-08-07 | 浙江安腾阀门有限公司 | Check valve capable of weakening water hammer phenomenon |
| CN211649181U (en) * | 2020-01-07 | 2020-10-09 | 祥安消防科技有限公司 | Silencing check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412310A (en) * | 2023-04-11 | 2023-07-11 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
| CN116412310B (en) * | 2023-04-11 | 2023-09-12 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113063027B (en) | 2023-05-12 |
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