CN203009946U - Water hammer discharge valve - Google Patents
Water hammer discharge valve Download PDFInfo
- Publication number
- CN203009946U CN203009946U CN 201220708224 CN201220708224U CN203009946U CN 203009946 U CN203009946 U CN 203009946U CN 201220708224 CN201220708224 CN 201220708224 CN 201220708224 U CN201220708224 U CN 201220708224U CN 203009946 U CN203009946 U CN 203009946U
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- Prior art keywords
- water hammer
- connecting base
- valve
- flap
- central shaft
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a water hammer discharge valve which comprises a valve body and a casing tube connected through a connection seat. A valve seat and a valve clack which are mutually matched are arranged in the valve body. A central shaft is arranged in the valve clack. A pressure adjusting system is arranged in the casing tube. A central hole matched with the central shaft of the valve clack is arranged at the lower end of the connection seat, an inner hole is arranged at the upper end of the connection seat, the central hole is communicated with the inner hole, and the central shaft of the valve clack penetrates through the central hole of the connection seat. A piston is arranged between the central shaft of the valve clack and the pressure adjusting system and arranged in the inner hole of the connection seat in a sealing mode. The side of the connection seat is further communicated with an oil cup through a connection tube, and a one-way throttle valve is mounted on the connection tube. According to the water hammer discharge valve, the structure is simple, the design is reasonable, the water hammer can be opened rapidly and closed slowly simultaneously, the secondary water hammer due to too quick closing of the valve is prevented, and great practical values are provided.
Description
Technical field
The utility model relates to valve technology field, refers to particularly it is a kind of fast-opening slowly-closing water hammer bleeder valve that is applicable in the fresh water pipeline system.
Background technique
At present, in the fresh water pipeline system, generally all can use pressure relief safety valve, this type of valve is all that direct-acting type changes up pass type or leading type bleeder valve soon, and it open pressure release after can surpassing the setting value of pressure relief safety valve at the pressure of pipeline; But when unexpected termination of pumping, this type of valve can cut out rapidly, cause that in the valve outlet port pipeline, rate of circulating flow descends suddenly, and produce flow-reversing impingement pressure, and velocity jump can produce percussive pressure Reeb transmission, and transport velocity is very high, can make valve outlet port section pressure be increased to the several times of rated pressure, water hammer in Here it is pipeline, it can cause valve or pipeline breaking, the generation accident.
Because the instantaneous high pressure time that water hammer produces is rapid, and the unlatching of pressure relief safety valve needs the regular hour, so it can't satisfy pressure release quickly; After pressure relief safety valve was opened pressure release in addition, after pipeline pressure returned to setup pressure value, bleeder valve meeting quick closedown caused pipeline to form the secondary instantaneous high pressure; This secondary instantaneous high pressure forms because the bleeder valve closing velocity is too fast, also can produce certain destruction to pipeline.
The model utility content
The purpose of this utility model is exactly the deficiency that will solve the above-mentioned background technology, and a kind of water hammer bleeder valve is provided, and it can enable to eliminate water hammer by fast open, also can solve the too fast problem that causes the secondary instantaneous high pressure of bleeder valve self closing velocity simultaneously.
the technical solution of the utility model is: a kind of water hammer bleeder valve, it comprises valve body and the sleeve pipe that connects by connecting base, be provided with the valve seat and the flap that cooperatively interact in described valve body, described flap is provided with central shaft, be provided with pressure regulating system in described sleeve pipe, it is characterized in that: the lower end of described connecting base is provided with the center hole that the central shaft with flap is complementary, the upper end of connecting base is provided with endoporus, center hole communicates with endoporus, the central shaft of flap passes the center hole of connecting base, be provided with piston between the central shaft of flap and pressure regulating system, piston seal is arranged in the endoporus of connecting base, the side of described connecting base is also connected by connecting tube and lubricating cup, on described connecting tube, one-way throttle valve is installed.
In such scheme:
Described pressure regulating system comprises adjusting screw rod and spring, and adjusting screw rod passes the upper-end surface of sleeve pipe, and spring is arranged on inside pipe casing, is provided with positioning plate between the upper end of adjusting screw rod and spring, and the spring lower end is connected with piston.
Be preferably: be provided with the 3rd pressing plate between described spring lower end and piston.
The sidewall of described valve seat is mesh walls.
Upper-end surface at described valve seat is pressed with gland.
Be set with axle sleeve between the center hole of described connecting base and the central shaft of flap, axle sleeve is fixed on connecting base by bolt and cooperatively interacting of the second pressing plate.The axle sleeve effect be to prevent flap central shaft wearing and tearing and guarantee sealing effect between central shaft and center hole.
Be provided with lining between the endoporus of described piston and connecting base, described lining is fixed on connecting base by cooperatively interacting of bolt and the 3rd pressing plate, and the design of lining is in order to the wearing and tearing that prevent piston and the sealability between piston and endoporus.
Described connecting tube and connecting base are threaded connection.
Working principle of the present utility model is:
Preset the elastic force of spring by adjusting screw rod, guarantee spring the corresponding valve seat of value of elastic force value, and adopted the piston balanced structure in valve body, it is the 3rd pressing plate that is provided with between piston and spring, can be converted to a less equivalent action area to the active area of hydraulic pressure before valve, thus can reduce with valve before the equivalent spring power that contends with of hydraulic pressure.
After the force value of valve seat is higher than predefined safety pressure value corresponding with spring, flap is opened under the effect of pressure, when hydraulic oil flows into lubricating cup in the connecting base, one-way throttle valve runner spaciousness is without hindrance, does not basically hinder the opening process of flap, and the assurance valve seat can be opened fast and carry out pressure release, eliminate the safety of water hammer protection pipeline, in this process, current may enter in valve seat, and the grid of valve base inner wall can make current pass through; After the force value of valve inner reaches predefined safety pressure value corresponding with spring, flap falls, hydraulic oil is flowed in connecting base by lubricating cup, effect due to the current limliting of one-way throttle valve, hydraulic oil can only slowly flow in the endoporus of connecting base, so flap can only move in closing process slowly, until close; In the flap closing process, close slowly by flap by the flow of oil circuit control, and closing velocity is adjustable.
The utility model can be opened the elimination water hammer fast, and simultaneously slow Slow Close, avoided producing the secondary water hammer because valve closing is too fast, is a kind of simple in structure, reasonable in design and water hammer bleeder valve of having great practical value.
Description of drawings
Fig. 1 is the utility model overall structure sectional view.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is convenient to be well understood to the utility model, but they do not consist of restriction to the utility model.
A kind of water hammer bleeder valve as shown in Figure 1, it comprises valve body 1 and the sleeve pipe 12 that connects into integral body by connecting base 7, connecting base 7 is bolted to connection with valve body 1 and sleeve pipe 12 respectively.The valve seat 2 that cooperatively interacts in valve body 1 and flap 4, flap 4 is provided with central shaft 4.1.
Be provided with pressure regulating system in sleeve pipe 12, described pressure regulating system comprises adjusting screw rod 14 and spring 11, adjusting screw rod 14 passes the upper-end surface of sleeve pipe 12, and spring 11 is arranged on sleeve pipe 12 inside, is provided with positioning plate 13 between the upper end of adjusting screw rod 14 and spring 11.
The lower end of connecting base 7 is provided with the center hole 7.1 that the central shaft 4.1 with flap 4 is complementary, the upper end of connecting base 7 is provided with endoporus 7.2, center hole 7.1 communicates with endoporus 7.2, the central shaft 4.1 of flap 4 passes the center hole 7.1 of connecting base 7, be provided with piston 9 between the central shaft 4.1 of flap 4 and the lower end of the spring 11 in pressure regulating system, piston 9 sealings are arranged in the endoporus 7.2 of connecting base 7.
In the present embodiment, also be provided with the 3rd pressing plate 10 between spring 11 lower ends and piston 9.Adjusting screw rod 14 can preset the elastic force of spring 11, guarantee spring 11 the corresponding valve seat 2 of value of elastic force value, and in the interior piston balanced structure that adopted of valve body 1, it is the 3rd pressing plate 10 that is provided with between piston 9 and spring 11, can be converted to a less equivalent action area to the active area of hydraulic pressure before valve, thus can reduce with valve before the equivalent spring power that contends with of hydraulic pressure.
In this example, the sidewall of valve seat 2 is mesh walls, can excrete out current from grid.
Be pressed with gland 5 between the upper-end surface of valve seat 2 and connecting base 7.
Be set with axle sleeve 6 between the center hole 7.1 of connecting base 7 and the central shaft 4.1 of flap 4, axle sleeve 6 is fixed on connecting base 7 by cooperatively interacting of bolt and the second pressing plate 18, axle sleeve 6 effect be to prevent flap 4 central shaft 4.1 wearing and tearing and guarantee sealing effect between central shaft 4.1 and center hole 7.1.
Be provided with lining 8 between the endoporus 7.2 of piston 9 and connecting base 7, lining 8 is fixed on connecting base 7 by cooperatively interacting of bolt and the 3rd pressing plate 3, and the design of lining 8 is in order to the wearing and tearing that prevent piston 9 and the sealability between piston 9 and endoporus 7.2.
Side at connecting base 7 is also connected by connecting tube 17 and the lubricating cup 16 that is full of hydraulic oil, and connecting tube 17 is threaded connection with connecting base 7, and one-way throttle valve 15 is installed on connecting tube 17.
Working principle of the present utility model is:
Preset the elastic force of spring 11 by adjusting screw rod 14, guarantee spring 11 the corresponding valve seat 2 of value of elastic force value; After the force value of valve seat 2 is higher than predefined safety pressure value corresponding with spring 11, flap 4 is opened under the effect of pressure, hydraulic oil is during from the interior inflow lubricating cup 16 of connecting base 7, one-way throttle valve 15 runner spaciousnesses are without hindrance, basically do not hinder the opening process of flap 4, assurance valve seat 2 can be opened fast and carry out pressure release, eliminates the safety of water hammer protection pipeline; After the force value of valve inner reaches predefined safety pressure value corresponding with spring 11, flap 4 falls, hydraulic oil is flowed in connecting base 7 by lubricating cup 16, effect due to the current limliting of one-way throttle valve 15, hydraulic oil can only slowly flow in the endoporus of connecting base 7, so flap 4 can only move in closing process slowly, until close; In flap 4 closing process, close slowly by flap 4 by the flow of oil circuit control, and closing velocity is adjustable.
The utility model is simple in structure, and is reasonable in design, can open fast the elimination water hammer, and the while is Slow Close slowly, has avoided producing the secondary water hammer because valve closing is too fast, has great practical value.
Claims (8)
1. water hammer bleeder valve, it comprises valve body (1) and the sleeve pipe (12) that connects by connecting base (7), be provided with the valve seat (2) and the flap (4) that cooperatively interact in described valve body (1), described flap (4) is provided with central shaft (4.1), described sleeve pipe is provided with pressure regulating system in (12), it is characterized in that: the lower end of described connecting base (7) is provided with the center hole (7.1) that the central shaft (4.1) with flap (4) is complementary, the upper end of connecting base (7) is provided with endoporus (7.2), center hole (7.1) communicates with endoporus (7.2), the central shaft (4.1) of flap (4) passes the center hole (7.1) of connecting base (7), be provided with piston (9) between the central shaft (4.1) of flap (4) and pressure regulating system, piston (9) sealing is arranged in the endoporus (7.2) of connecting base (7), the side of described connecting base (7) is also connected by connecting tube (17) and lubricating cup (16), and one-way throttle valve (15) is installed on described connecting tube (17).
2. water hammer bleeder valve according to claim 1, it is characterized in that: described pressure regulating system comprises adjusting screw rod (14) and spring (11), adjusting screw rod (14) passes the upper-end surface of sleeve pipe (12), spring (11) is arranged on sleeve pipe (12) inside, be provided with positioning plate (13) between the upper end of adjusting screw rod (14) and spring (11), spring (11) lower end is connected with piston (9).
3. water hammer bleeder valve according to claim 2, is characterized in that: be provided with the 3rd pressing plate (10) between described spring (11) lower end and piston (9).
4. water hammer bleeder valve according to claim 1, it is characterized in that: the sidewall of described valve seat (2) is mesh walls.
5. water hammer bleeder valve according to claim 1, is characterized in that: be pressed with gland (5) in the upper-end surface of described valve seat (2).
6. water hammer bleeder valve according to claim 1, it is characterized in that: be set with axle sleeve (6) between the center hole (7.1) of described connecting base (7) and the central shaft (4.1) of flap (4), axle sleeve (6) is fixed on connecting base (7) by cooperatively interacting of bolt and the second pressing plate (18).
7. water hammer bleeder valve according to claim 1, it is characterized in that: be provided with lining (8) between the endoporus of described piston (9) and connecting base (7), described lining (8) is fixed on connecting base (7) by cooperatively interacting of bolt and the 3rd pressing plate (3).
8. water hammer bleeder valve according to claim 1 is characterized in that: described connecting tube (17) is threaded connection with connecting base (7).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708224 CN203009946U (en) | 2012-12-19 | 2012-12-19 | Water hammer discharge valve |
| PCT/CN2013/089673 WO2014094599A1 (en) | 2012-12-19 | 2013-12-17 | Water hammer discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220708224 CN203009946U (en) | 2012-12-19 | 2012-12-19 | Water hammer discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009946U true CN203009946U (en) | 2013-06-19 |
Family
ID=48601543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220708224 Withdrawn - After Issue CN203009946U (en) | 2012-12-19 | 2012-12-19 | Water hammer discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009946U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047457A (en) * | 2012-12-19 | 2013-04-17 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN103470795A (en) * | 2013-09-18 | 2013-12-25 | 武汉大禹阀门股份有限公司 | Anti-scale water hammer discharge valve |
| CN103498962A (en) * | 2013-09-18 | 2014-01-08 | 武汉大禹阀门股份有限公司 | Scale-prevention valve |
| WO2014094599A1 (en) * | 2012-12-19 | 2014-06-26 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN107191653A (en) * | 2017-06-26 | 2017-09-22 | 安徽红星阀门有限公司 | A kind of water attack release valve |
-
2012
- 2012-12-19 CN CN 201220708224 patent/CN203009946U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047457A (en) * | 2012-12-19 | 2013-04-17 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| WO2014094599A1 (en) * | 2012-12-19 | 2014-06-26 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN103047457B (en) * | 2012-12-19 | 2015-05-06 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN103470795A (en) * | 2013-09-18 | 2013-12-25 | 武汉大禹阀门股份有限公司 | Anti-scale water hammer discharge valve |
| CN103498962A (en) * | 2013-09-18 | 2014-01-08 | 武汉大禹阀门股份有限公司 | Scale-prevention valve |
| CN103470795B (en) * | 2013-09-18 | 2016-04-06 | 史仁朋 | A kind of Anti-scale water hammer discharge valve |
| CN103498962B (en) * | 2013-09-18 | 2016-08-17 | 武汉大禹阀门股份有限公司 | A kind of antiscale valve |
| CN107191653A (en) * | 2017-06-26 | 2017-09-22 | 安徽红星阀门有限公司 | A kind of water attack release valve |
| CN107191653B (en) * | 2017-06-26 | 2023-07-14 | 安徽红星阀门有限公司 | Water hammer bleeder valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150506 |
|
| RGAV | Abandon patent right to avoid regrant |