CN113639095B

CN113639095B - Valve capable of preventing water hammer effect in advance

Info

Publication number: CN113639095B
Application number: CN202111195806.7A
Authority: CN
Inventors: 邵帅
Original assignee: Xuzhou Putuo Machinery Technology Co ltd
Current assignee: Xuzhou Putuo Machinery Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-01-21
Anticipated expiration: 2041-10-14
Also published as: CN113639095A

Abstract

The invention discloses a valve capable of preventing a water hammer effect in advance, which comprises a valve main body, wherein a sealing support sleeve is fixedly connected to the inner cavity of the valve main body, the left side of the valve main body is communicated with a connection water inlet pipe, the right side of the valve main body is communicated with a water outlet pipe, a movable plate is arranged in the inner cavity of the valve main body, and a water permeable hole is formed in the top of the movable plate. According to the invention, by arranging the sealing support sleeve, the movable plate, the water permeable hole, the connecting rod, the mounting plate, the turbulence rod main body, the connecting plate, the first telescopic rod, the movable push rod, the movable rod, the connecting lifting plate, the fixed plate, the second telescopic rod and the controller in a matched manner, the valve has the advantages of water hammer prevention effect and long service life, and solves the problems that the existing valve is not provided with the turbulence rod, the water hammer effect cannot be avoided, the water hammer effect can damage a water path access pipeline, and the service life of the water path access pipeline is shortened.

Description

Valve capable of preventing water hammer effect in advance

Technical Field

The invention relates to the technical field of valves, belongs to IPC classification F16K, and particularly relates to a valve capable of preventing a water hammer effect in advance.

Background

The valve is the control unit in the fluid conveying system, have and end, adjust, the water conservancy diversion, prevent functions such as adverse current, steady voltage, reposition of redundant personnel or overflow pressure release, a valve for fluid control system, from the simplest stop valve to the various valves that use in the very complicated autonomous system, its variety and specification are fairly numerous, water hammer effect often can all appear when opening or closing in the valve use, prior art generally uses the bypass to absorb the mode of water hammer energy when eliminating water hammer effect and goes on, belong to the after-the-fact remedial measure after water hammer effect takes place, can not avoid water hammer effect to take place, water hammer effect can cause the damage to water route access pipeline, reduce water route access pipeline life.

Disclosure of Invention

The invention aims to provide a valve capable of preventing a water hammer effect in advance, which has the advantages of preventing the water hammer effect and being long in service life and solves the problems that the existing valve is not provided with a turbulence bar generally, the water hammer effect cannot be avoided, the water hammer effect can damage a water path access pipeline, and the service life of the water path access pipeline is shortened.

In order to achieve the purpose, the invention provides the following technical scheme:

A. the utility model provides a vortex stick main part group external member that is used for valve to prevent water hammer effect in advance which characterized in that: comprises a mounting plate (8), a movable plate (5) and a turbulence bar main body (9); the number of the turbulence bar main bodies (9) is more than or equal to 10; the first end of the turbulence bar main body (9) is connected with the mounting plate (8); the top of the movable plate (5) is provided with a water permeable hole (6); the turbulence bar main body (9) can penetrate through the water permeable holes (6).

Further: the vertex of the second end of the turbulence bar main body (9) forms an inclined plane.

Further: the spoiler main body (9) is provided with a wear-resistant layer. For flow control of a liquid containing solid particles.

Further: the spoiler main body (9) is provided with a corrosion-resistant layer. For flow control of highly corrosive liquids.

Further: the turbulent flow rod main body (9) is provided with a high temperature resistant layer. For flow control of high temperature liquids.

Further: the turbolator main body (9) is provided with a Teflon layer.

Further: the turbulence bar main body (9) is provided with a surface oxidation layer.

B. A valve capable of preventing a water hammer effect in advance comprises a valve main body, wherein a sealing support sleeve is fixedly connected to an inner cavity of the valve main body, a connection water inlet pipe is communicated with the left side of the valve main body, a water outlet pipe is communicated with the right side of the valve main body, a movable plate is arranged in the inner cavity of the valve main body, a water permeable hole is formed in the top of the movable plate, connecting rods are fixedly connected to two sides of the top of the movable plate, a mounting plate is sleeved on the surface of each connecting rod, a turbulence bar main body is fixedly connected to the bottom of the mounting plate, a connecting plate is fixedly connected to the top of the connecting rod, first telescopic rods are arranged on two sides of the top of the valve main body in a penetrating mode, the bottom of each movable push rod is fixedly connected with the mounting plate, and movable rods are fixedly connected to the top of the connecting plate, the utility model discloses a vortex flow bar, including activity push rod, lifter plate, vortex rod, fixed core, anticorrosive layer, the lifter plate is connected to the top fixedly connected with of activity push rod, the top fixedly connected with fixed plate of activity push rod, the top of fixed plate is run through and is provided with the second telescopic link, the bottom of second telescopic link with be connected lifter plate fixed connection, vortex rod main part includes fixed core, the fixed surface of fixed core is connected with the back up coat, the surface of back up coat is provided with the inoxidizing coating, the inoxidizing coating includes the anticracking layer, the surface on anticracking layer is scribbled and is equipped with the anti-corrosion coating, the surface on anticorrosive coating is scribbled and is equipped with the wearing layer.

Preferably, the top fixedly connected with protecting crust of valve main part, first telescopic link, activity push rod, movable rod, connection lifter plate, fixed plate and second telescopic link all are located the inside of protecting crust, there is the door plant right side on the positive surface of protecting crust through hinge swing joint, the left side fixedly connected with handle on the positive surface of door plant.

Preferably, the top of the movable rod penetrates through the valve main body and the connecting lifting plate in sequence, and the surface of the movable rod is in sliding contact with the valve main body and the connecting lifting plate respectively.

Preferably, the first sealing ring of bottom fixedly connected with of mounting panel, the first seal groove of using with the cooperation of first sealing ring is seted up at the top of fly leaf, the hole of permeating water is used with the cooperation of vortex stick main part.

Preferably, the bottom fixedly connected with second sealing ring of fly leaf, the second seal groove of using with the cooperation of second sealing ring is seted up to the bottom of sealed support cover inner chamber, sealed support cover uses with the fly leaf cooperation.

Preferably, the left side fixedly connected with installation pole of valve main part, the left side fixedly connected with locating plate of installation pole, the left side of locating plate is provided with the installation wall body, the installation wall body passes through bolt fixed connection with the locating plate, the inside fixedly connected with water route of installation wall body inserts the pipe, the patchhole has been seted up on the right side of locating plate, the right side that the water route inserted the pipe runs through the patchhole and with be connected the inlet tube intercommunication.

Preferably, the top of connecting plate is seted up with the through-hole that uses with movable push rod and movable rod cooperation, the equal fixedly connected with seal block in both sides at valve main part top, first telescopic link and seal block fixed connection, the positive fixed surface of valve main part is connected with the controller, the output of controller respectively with first telescopic link and second telescopic link electric connection.

Preferably, the fixed core is made of an aluminum alloy material, the reinforcing layer is made of tungsten steel, the anti-cracking layer is made of high manganese steel, the anti-corrosion layer is made of chromium metal, and the wear-resistant layer is made of a titanium alloy material.

Preferably, the number of the turbulence bar main bodies (9) is more than or equal to 10, and the length of the turbulence bar main body (9) closer to the water outlet pipe (4) is longer, and the length of the turbulence bar main body (9) closer to the water inlet pipe (3) is shorter. By the design, in the closing process of the valve, the relative gradient of the resistance of the turbulent flow at the current moment and the previous moment is increased quickly, the flow is reduced quickly in the front-stage time of valve closing, then the relative gradient at the current moment and the previous moment is reduced gradually, the change gradient of the liquid flow speed at the last moment of valve closing is reduced, and the water hammer effect is prevented or reduced.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, by arranging the sealing support sleeve, the movable plate, the water permeable hole, the connecting rod, the mounting plate, the turbulence rod main body, the connecting plate, the first telescopic rod, the movable push rod, the movable rod, the connecting lifting plate, the fixed plate, the second telescopic rod and the controller in a matched manner, the valve has the advantages of water hammer prevention effect and long service life, and solves the problems that the existing valve is not provided with the turbulence rod, the water hammer effect cannot be avoided, the water hammer effect can damage a water path access pipeline, and the service life of the water path access pipeline is shortened.

2. According to the invention, the protection effect can be achieved by arranging the protection shell and the door plate, the first telescopic rod, the movable push rod, the movable rod, the connecting lifting plate, the fixed plate and the second telescopic rod can be effectively prevented from being damaged, the door plate can be conveniently opened and closed by arranging the handle, the sealing effect can be achieved by arranging the first sealing ring and the first sealing groove, the water leakage at the joint of the mounting plate and the movable plate can be effectively prevented, the joint of the movable plate and the sealing support sleeve can be sealed by arranging the second sealing ring and the second sealing groove, the water leakage at the joint of the movable plate and the sealing support sleeve can be effectively prevented, the valve main body can be conveniently mounted by arranging the mounting rod and the positioning plate, and the water leakage at the joint of the valve main body and the first telescopic rod can be effectively prevented by arranging the sealing block.

3. The invention changes the flow resistance gradient and prevents the occurrence of the water hammer effect, and the thought is superior to the prior art.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present invention;

FIG. 2 is a top view of the movable plate and the water permeable holes of the present invention;

FIG. 3 is a front view of the valve body and the protective housing of the present invention;

FIG. 4 is an enlarged view of A in FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of B in FIG. 1 according to the present invention;

FIG. 6 is a schematic cross-sectional view of a spoiler main body according to the present invention;

fig. 7 is a schematic cross-sectional view of a protective layer according to the present invention.

In the figure: the water-saving valve comprises a valve main body 1, a sealing support sleeve 2, a connecting water inlet pipe 3, a water outlet pipe 4, a movable plate 5, a water permeable hole 6, a connecting rod 7, an installation plate 8, a spoiler main body 9, a connecting plate 10, a first telescopic rod 11, a movable push rod 12, a movable rod 13, a lifting plate 14, a fixed plate 15, a second telescopic rod 16, a protective shell 17, a door plate 18, a first sealing ring 19, a first sealing groove 20, a second sealing ring 21, a second sealing groove 22, an installation rod 23, a positioning plate 24, a wall body 25, a water channel access pipe 26, an insertion hole 27, a fixed core 28, a protective layer 29, a reinforcing layer 30, a crack prevention layer 31, an anti-corrosion layer 32, a wear-resistant layer 33 and a controller 34.

Detailed Description

Example 1:

referring to fig. 1-7, a valve capable of preventing a water hammer effect in advance comprises a valve main body 1, a sealing support sleeve 2 is fixedly connected to an inner cavity of the valve main body 1, a connection water inlet pipe 3 is communicated with the left side of the valve main body 1, a mounting rod 23 is fixedly connected to the left side of the valve main body 1, a positioning plate 24 is fixedly connected to the left side of the mounting rod 23, a mounting wall 25 is arranged on the left side of the positioning plate 24, the mounting wall 25 is fixedly connected to the positioning plate 24 through bolts, a water path access pipe 26 is fixedly connected to the inside of the mounting wall 25, an insertion hole 27 is formed in the right side of the positioning plate 24, the right side of the water path access pipe 26 penetrates through the insertion hole 27 and is communicated with the connection water inlet pipe 3, a water outlet pipe 4 is communicated with the right side of the valve main body 1, a movable plate 5 is arranged in the inner cavity of the valve main body 1, a second sealing ring 21 is fixedly connected to the bottom of the movable plate 5, a second sealing groove 22 matched with the second sealing ring 21 is formed in the bottom of the inner cavity of the sealing support sleeve 2, the sealing support sleeve 2 is matched with a movable plate 5 for use, the top of the movable plate 5 is provided with a water permeable hole 6, two sides of the top of the movable plate 5 are fixedly connected with connecting rods 7, the surface of each connecting rod 7 is sleeved with a mounting plate 8, the bottom of each mounting plate 8 is fixedly connected with a turbulence bar main body 9, the bottom of each mounting plate 8 is fixedly connected with a first sealing ring 19, the top of the movable plate 5 is provided with a first sealing groove 20 matched with the first sealing ring 19 for use, the water permeable hole 6 is matched with the turbulence bar main body 9 for use, the top of each connecting rod 7 is fixedly connected with a connecting plate 10, two sides of the top of the valve main body 1 are respectively provided with a first telescopic rod 11 in a penetrating manner, the bottom of each first telescopic rod 11 is fixedly connected with the connecting plate 10, the top of the valve main body 1 is provided with a movable push rod 12 in a penetrating manner, the bottom of the movable push rod 12 is fixedly connected with the mounting plate 8, and the top of the connecting plate 10 is fixedly connected with a movable rod 13, the top of the movable push rod 12 is fixedly connected with a connecting lifting plate 14, the top of the movable rod 13 sequentially penetrates through the valve main body 1 and the connecting lifting plate 14, the surface of the movable rod 13 is respectively in sliding contact with the valve main body 1 and the connecting lifting plate 14, the top of the movable rod 13 is fixedly connected with a fixed plate 15, the top of the fixed plate 15 is provided with a second telescopic rod 16 in a penetrating manner, the top of the valve main body 1 is fixedly connected with a protective shell 17, a first telescopic rod 11, the movable push rod 12, the movable rod 13, the connecting lifting plate 14, the fixed plate 15 and the second telescopic rod 16 are all positioned inside the protective shell 17, the right side of the front surface of the protective shell 17 is movably connected with a door plate 18 through a hinge, the left side of the front surface of the door plate 18 is fixedly connected with a handle, the top of the connecting plate 10 is provided with a through hole matched with the movable push rod 12 for use, sealing blocks are fixedly connected on two sides of the top of the valve main body 1, and the first telescopic rod 11 is fixedly connected with the sealing blocks, the front surface of the valve main body 1 is fixedly connected with a controller 34, the output end of the controller 34 is respectively and electrically connected with the first telescopic rod 11 and the second telescopic rod 16, the bottom of the second telescopic rod 16 is fixedly connected with a connecting lifting plate 14, the spoiler rod main body 9 comprises a fixed core 28, the surface of the fixed core 28 is fixedly connected with a reinforcing layer 30, the surface of the reinforcing layer 30 is provided with a protective layer 29, the protective layer 29 comprises an anti-cracking layer 31, the surface of the anti-cracking layer 31 is coated with an anti-corrosion layer 32, the surface of the anti-corrosion layer 32 is coated with a wear-resistant layer 33, the fixed core 28 is made of aluminum alloy, the reinforcing layer 30 is made of tungsten steel, the anti-cracking layer 31 is made of high manganese steel, the anti-corrosion layer 32 is made of chromium metal, the wear-resistant layer 33 is made of titanium alloy, and the sealing support sleeve 2, the movable plate 5, the water permeable hole 6, the connecting rod 7, the mounting plate 8, the spoiler rod main body 9, the spoiler rod main body, Connecting plate 10, first telescopic link 11, activity push rod 12, movable rod 13, connect lifter plate 14, fixed plate 15, second

telescopic link

16 and 34 cooperation of controller are used, possess waterproof hammer effect and long service life's advantage, have solved current valve and have all not had the vortex stick usually, can not avoid the water hammer effect to take place, and the water hammer effect can cause the damage to water route access pipeline, reduces water route access pipeline life's problem.

The water hammer effect means that inside a water pipe, the inner wall of the pipe is smooth, water flows freely, when an opened valve is closed suddenly, the water flow generates pressure on the valve and the pipe wall, the valve mainly generates pressure, and due to the smooth pipe wall, the follow-up water flow quickly reaches the maximum under the action of inertia and generates destructive action, namely the water hammer effect in water conservancy, namely a positive water hammer, needs to be considered in the construction of a water conservancy pipeline.

Electric telescopic handle all adopts the more accurate not rocking of exquisite suit gear in the text, adopts the corrosion-resistant stretch-proofing nonflammable of PVC material parcel, and the telescopic link reaches the top and can automatic shutdown, ensures that the motor can not empty burn.

The chromium plating refers to the action of plating chromium on other metals as a plating layer, the chromium plating layer has high hardness, the hardness can be changed within a large range of 400-1200 HV according to different plating solution components and process conditions, the chromium plating layer has good heat resistance, the friction coefficient of the chromium plating layer is small, particularly the dry friction coefficient is the lowest among all metals, so the chromium plating layer has good wear resistance, the chromium plating layer has good chemical stability, and the chromium plating layer does not have an effect in alkali, sulfide, nitric acid and most organic acids.

Through setting up protecting crust 17 and door plant 18, can play the effect of protection, can effectively prevent first telescopic link 11, movable push rod 12, movable rod 13, connect lifter plate 14, fixed plate 15 and second telescopic link 16 are impaired, through setting up the handle, the switching of door plant 18 of can being convenient for, through setting up first sealing ring 19 and first seal groove 20, can play confined effect, can effectively prevent the junction of mounting panel 8 and fly leaf 5 from leaking, through setting up second sealing ring 21 and second seal groove 22, can seal the junction of fly leaf 5 and sealed support cover 2, can effectively prevent that the junction of fly leaf 5 and sealed support cover 2 from leaking, through setting up installation pole 23 and locating plate 24, can be convenient for install valve main part 1.

A method for using a valve capable of preventing a water hammer effect in advance comprises the following steps:

a: the right side of the water path access pipe 26 penetrates through the insertion hole 27, the positioning plate 24 is fixed on the surface of the installation wall 25 through bolts, the water path access pipe 26 is communicated and fixed with the connection water inlet pipe 3 through a threaded sleeve connected with the surface of the water inlet pipe 3 and the bolt on the right side of the surface of the water path access pipe 26, the valve body 1 is fixed through the installation rod 23, and the valve body 1 is fixedly installed on the surface of the installation wall 25 to enable the whole water valve to be accessed into a water path.

B: if need overhaul the protective housing 17 inner part, open door plant 18 through the pulling handle, open through door plant 18 with first telescopic link 11, activity push rod 12, movable rod 13, connect lifter plate 14, fixed plate 15 and second telescopic link 16 expose, can inspect power consumption facilities such as first telescopic link 11 and second telescopic link 16 this time, also can inspect first telescopic link 11 simultaneously, whether the phenomenon of leaking appears in activity push rod 12 and movable rod 13 and the junction of valve main part 1.

C: if the water valve in the flowing water needs to be closed, the controller 34 is used for starting the first telescopic rod 11 to perform telescopic motion, the first telescopic rod 11 is used for driving the movable plate 5, the connecting rod 7, the mounting plate 8, the turbulence bar main body 9, the connecting plate 10, the movable push rod 12, the movable rod 13, the connecting lifting plate 14, the fixed plate 15 and the second telescopic rod 16 to perform vertical motion, the movable plate 5 is clamped into the inner cavity of the sealing support sleeve 2, the second sealing ring 21 is clamped into the inner cavity of the second sealing groove 22, the joint of the sealing support sleeve 2 and the movable plate 5 is sealed through the second sealing groove 22, at the moment, the water flow cannot be sealed, the water flow can continuously flow through the water permeable hole 6, the water outflow quantity of the water valve is reduced, the water flow through the pipeline is reduced, the second telescopic rod 16 is started to perform telescopic motion through the controller 34, the second telescopic rod 16 is used for driving the mounting plate 8, the turbulence bar main body 9 and the turbulence bar main body 9, The movable push rod 12 and the connection lifter plate 14 move up and down, the turbulence bar main body 9 at the bottom of the turbulence bar main body 9 moves downwards, the inside of the permeable hole 6 is sequentially inserted from right to left, the permeable hole 6 is plugged by the insertion of the turbulence bar main body 9, water cannot flow out of the permeable hole 6, the water flow is gradually reduced until the first sealing ring 19 is clamped into the first sealing groove 20, complete plugging is completed on the water flow, the water flow is gradually reduced in the plugging process, the flow rate of the water is also gradually reduced, the occurrence of a negative water hammer can be effectively prevented, when water needs to be drained, the operation is performed in the opposite direction, the flow and the flow rate of the water are gradually increased in the operation process, and the occurrence of the water hammer phenomenon is avoided.

D: through setting up fixed core 28, back up coat 30 and crack control layer 31, can play the effect of strengthening to vortex stick main part 9, can prevent effectively that vortex stick main part 9 from being broken in the use, through setting up anti-corrosion coating 32, can play anticorrosive effect, can prevent effectively that vortex stick main part 9 from being corroded by water because of long-time contact water, through setting up wearing layer 33, can play wear-resisting effect, can prevent effectively that the washing away of water from being worn and damaged by water down.

In summary, the following steps: this valve vortex stick that can prevent water hammer effect in advance, through setting up sealed support cover 2, fly leaf 5, the hole 6 of permeating water, connecting rod 7, mounting panel 8, vortex stick main part 9, connecting plate 10, first telescopic link 11, movable push rod 12, movable rod 13, connect lifter plate 14, fixed plate 15, the cooperation of second telescopic link 16 and controller 34 is used, possess waterproof hammer effect and long service life's advantage, it does not all have the vortex stick usually to have solved current valve, can not avoid water hammer effect to take place, water hammer effect can insert the pipeline to the water route and cause the damage, reduce the problem that the water route inserts pipeline life.

Example 2:

on the basis of embodiment 1, still include the hydraulic control module, first telescopic link, second telescopic link are the hydraulic stem, and the motion of first telescopic link, second telescopic link is controlled to the hydraulic control module.

Example 3:

on the basis of embodiment 1, still include electric module, first telescopic link, second telescopic link are electric telescopic handle, and electric module controls the motion of first telescopic link, second telescopic link.

The core component of the electrical module is the PLC.

Example 4:

the liquid path system controls the opening and closing of the liquid by using the valve capable of preventing the water hammer effect in embodiment 1.

Description of the drawings: the invention changes the flow resistance through the turbulence bars, the resistance of each area is more uniform, the gradient of the flow resistance increase in the starting stage in the turn-off process is larger, and the water hammer effect can be well prevented, rather than the remedial absorption after the water hammer effect occurs.

Claims

1. A valve capable of preventing a water hammer effect in advance, comprising a valve main body (1), characterized in that: the inner cavity of the valve main body (1) is fixedly connected with a sealing support sleeve (2), the left side of the valve main body (1) is communicated with a connection water inlet pipe (3), the right side of the valve main body (1) is communicated with a water outlet pipe (4), the inner cavity of the valve main body (1) is provided with a movable plate (5), the top of the movable plate (5) is provided with a water permeable hole (6), two sides of the top of the movable plate (5) are fixedly connected with a connecting rod (7), the surface of the connecting rod (7) is sleeved with a mounting plate (8), the bottom of the mounting plate (8) is fixedly connected with a turbulence rod main body (9), the top of the connecting rod (7) is fixedly connected with a connecting plate (10), two sides of the top of the valve main body (1) are respectively provided with a first telescopic rod (11) in a penetrating manner, the bottom of the first telescopic rod (11) is fixedly connected with the connecting plate (10), the top of the valve main body (1) is provided with a movable push rod (12) in a penetrating manner, the bottom of the movable push rod (12) is fixedly connected with the mounting plate (8), the top of the connecting plate (10) is fixedly connected with a movable rod (13), the top of the movable push rod (12) is fixedly connected with a connecting lifting plate (14), the top of the movable rod (13) is fixedly connected with a fixing plate (15), a second telescopic rod (16) penetrates through the top of the fixing plate (15), and the bottom of the second telescopic rod (16) is fixedly connected with the connecting lifting plate (14);

the top of the movable rod (13) penetrates through the valve main body (1) and the connecting lifting plate (14) in sequence, and the surface of the movable rod (13) is in sliding contact with the valve main body (1) and the connecting lifting plate (14) respectively;

the number of the turbulence bar main bodies (9) is more than or equal to 10, the length of the turbulence bar main body (9) closer to the water outlet pipe (4) is longer, and the length of the turbulence bar main body (9) closer to the water inlet pipe (3) is shorter;

the inside of permeating water hole (6) is inserted from right side to left side in proper order in vortex rod main part (9) of vortex rod main part (9) downstream in-process mounting panel (8) bottom, inserts through vortex rod main part (9) and carries out the shutoff to permeating water hole (6), makes water can't flow out in permeating water hole (6), makes rivers reduce gradually.

2. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the top fixedly connected with protecting crust (17) of valve main part (1), first telescopic link (11), activity push rod (12), movable rod (13), connection lifter plate (14), fixed plate (15) and second telescopic link (16) all are located the inside of protecting crust (17), there are door plant (18) on the right side on protecting crust (17) positive surface through hinge swing joint, the left side fixedly connected with handle on door plant (18) positive surface.

3. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the bottom fixedly connected with first sealing ring (19) of mounting panel (8), first seal groove (20) of using with first sealing ring (19) cooperation are seted up to the top of fly leaf (5), it uses with vortex stick main part (9) cooperation to permeate water hole (6).

4. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the bottom fixedly connected with second sealing ring (21) of fly leaf (5), second seal groove (22) that cooperate the use with second sealing ring (21) are seted up to the bottom of sealed support cover (2) inner chamber, sealed support cover (2) and fly leaf (5) cooperation use.

5. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the left side fixedly connected with installation pole (23) of valve main part (1), the left side fixedly connected with locating plate (24) of installation pole (23), the left side of locating plate (24) is provided with installation wall body (25), installation wall body (25) passes through bolt fixed connection with locating plate (24), the inside fixedly connected with water route of installation wall body (25) inserts pipe (26), patchhole (27) have been seted up on the right side of locating plate (24), the right side of water route access pipe (26) run through patchhole (27) and with be connected inlet tube (3) intercommunication.

6. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the through-hole that uses with activity push rod (12) cooperation is seted up at the top of connecting plate (10), the equal fixedly connected with seal block in both sides at valve main part (1) top, first telescopic link (11) and seal block fixed connection, the positive fixed surface of valve main part (1) is connected with controller (34), the output of controller (34) respectively with first telescopic link (11) and second telescopic link (16) electric connection.

7. A valve according to claim 1, wherein the valve is pre-operable to prevent the hammer effect: the flow disturbing rod main body (9) comprises a fixed core (28), a reinforcing layer (30) is fixedly connected to the surface of the fixed core (28), a protective layer (29) is arranged on the surface of the reinforcing layer (30), the protective layer (29) comprises an anti-cracking layer (31), an anti-corrosion layer (32) is coated on the surface of the anti-cracking layer (31), and a wear-resistant layer (33) is coated on the surface of the anti-corrosion layer (32).