CN210712757U - Butterfly valve type flap valve for bidirectional flow passage - Google Patents
Butterfly valve type flap valve for bidirectional flow passage Download PDFInfo
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- CN210712757U CN210712757U CN201921506446.6U CN201921506446U CN210712757U CN 210712757 U CN210712757 U CN 210712757U CN 201921506446 U CN201921506446 U CN 201921506446U CN 210712757 U CN210712757 U CN 210712757U
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- baffle
- flap valve
- flow passage
- bidirectional flow
- valve
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Abstract
The utility model discloses a butterfly valve type flap valve for a bidirectional flow passage, which comprises a first baffle and a second baffle which are composed of an upper small baffle and a lower small baffle, a flap valve shaft for fixing the flap valve, and the bidirectional flow passage; the first baffle and the second baffle are clamped in the baffle groove, and the positions of the first baffle and the second baffle are controlled by the hoist to realize the conversion of the flap valve form; the gasket strips are arranged at the joints of the flap valve and the upper and lower baffles, so that the impact force between the flap valve and the baffles can be reduced, and the service lives of the flap valve and the baffles can be prolonged. When the bidirectional flow passage serves as a water outlet flow passage, the butterfly valve type flap valve is opened in the forward direction and closed automatically in the reverse direction; when the bidirectional flow passage serves as a water inlet flow passage, the butterfly valve type flap valve is opened reversely and closed automatically in the forward direction. Compare in traditional flap valve, the utility model discloses an application is more extensive.
Description
Technical Field
The utility model relates to an utilize in cutoff device of two-way runner, specifically be a butterfly valve formula flap valve for two-way runner, belong to hydraulic engineering technical field.
Background
In pump station engineering, a flap valve is generally required to be installed when water outlet cut-off occurs. The traditional flap valve is controlled in a one-way mode, the flap valve is automatically opened to discharge after the water pump is started, the synchronization performance is good, and the flap valve can be closed by means of self weight. The traditional flap valve is applied to a water outlet of a one-way water pump more, and the traditional flap valve cannot be applied to a two-way pump station adopting a two-way flow channel to realize a drainage and irrigation function and a water pump turbine unit adopting a two-way flow channel to realize a drainage and storage function.
SUMMERY OF THE UTILITY MODEL
The utility model provides a butterfly valve formula flap valve for two-way runner to above weak point, mainly be applied to the two-way runner that has business turn over water function.
The utility model aims at realizing through the following technical scheme:
a butterfly valve type flap valve for a bidirectional flow passage comprises the bidirectional flow passage and a flap valve, and is characterized by further comprising a first baffle, a second baffle and a flap valve shaft, wherein the first baffle and the second baffle are respectively and vertically arranged on the bidirectional flow passage and respectively comprise an upper baffle, a lower baffle and two connecting rods, the two connecting rods are arranged in parallel, and the upper end and the lower end of each connecting rod are respectively and fixedly connected with the corresponding upper baffle and the corresponding lower baffle; the flap valve shaft is positioned between the first baffle and the second baffle, and the middle part of the flap valve is rotationally connected with the side wall of the bidirectional flow passage through the flap valve shaft; the first baffle and the second baffle are respectively lifted up or lowered down by the hoist, the flap valve rotates under the action of water flow, and two ends of the flap valve are respectively contacted with the corresponding upper baffle or lower baffle or are respectively arranged between the corresponding upper baffle and lower baffle, so that the bidirectional flow channel is in a closed state, a water inlet state or a water outlet state.
Preferably, the first baffle and the second baffle are connected with the bidirectional flow channel through baffle slots, and water stopping is arranged in the baffle slots.
Preferably, the heights of the first baffle and the second baffle are larger than the height of the bidirectional flow channel, one baffle is lifted, namely the upper baffle is higher than the top of the bidirectional flow channel, the bottom of the lower baffle is flush with the bottom of the bidirectional flow channel, the other baffle is lowered, namely the top of the upper baffle is flush with the top of the bidirectional flow channel, and the lower baffle exceeds the bottom of the bidirectional flow channel.
Preferably, the contact positions of the upper baffle and the lower baffle with the end part of the flap valve are respectively inclined planes, and the end part of the flap valve is respectively provided with a gasket strip matched with the inclined planes.
Preferably, side water stops are arranged on two sides of the flap valve.
Preferably, the upper baffle, the lower baffle and the flap valve are made of stainless steel materials.
The butterfly valve type flap valve of the utility model is arranged at the water inlet and the water outlet of the two-way flow channel, and the flap valve is opened in the forward direction and closed automatically in the reverse direction, namely when the two-way flow channel is used as the water outlet flow channel, the flap valve is opened in the forward direction (the flap valve is opened by the water flow in the water outlet flow channel), and is closed automatically in the reverse direction (no water flow exists in the water outlet flow channel, and the flap valve is limited at two ends by the corresponding baffle under the action of the external water flow to close the flow channel); when the bidirectional flow passage serves as a water inlet flow passage, the flap valve is reversely opened (the flap valve is opened by water flow in the water inlet flow passage) and is automatically closed in a forward direction (the flap valve does not have water flow in the water inlet flow passage, and the two ends of the flap valve are limited by the corresponding baffle plates under the action of external water flow to close the flow passage). Compare in traditional flap, the utility model discloses a flap application is more extensive.
The utility model has the advantages of it is following:
1. traditional flap valve structure is usually as check valve, can not apply to in the two-way runner, and the utility model discloses the principle is simple, convenient operation, utilizes two baffles of headstock gear control to reciprocate, realizes the conversion of intaking flap valve and play water flap valve through 3 steps.
2. The utility model discloses a two-way flap valve of butterfly valve formula when rivers flow backwards, can accomplish fast cutout, guarantees that two-way runner rivers are stable when the runner appears.
3. The inclined plane that baffle and flap valve are connected is laminated with the gasket strip on the flap valve perfectly, reaches the purpose of stagnant water when breaking off the flow, and the gasket strip can also alleviate the impact force between flap valve and the baffle moreover, prolongs the life of flap valve and baffle.
Drawings
Fig. 1 is a general layout view of a butterfly valve type flap valve for a two-way flow passage according to the present invention;
fig. 2 is a plan view of a butterfly valve type flap valve for a two-way flow passage according to the present invention;
FIG. 3 is a schematic view of a baffle of a butterfly valve type flapper for a two-way flow passage according to the present invention;
FIG. 4 is a detailed structural view of the connection between the flap valve and the baffle of the butterfly valve type flap valve for a two-way flow passage according to the present invention;
fig. 5 is a static state diagram of a water outlet flap valve of the butterfly valve type flap valve for a bidirectional flow passage of the present invention;
fig. 6 is a diagram showing the operation state of the flap valve at the water outlet of the butterfly valve type flap valve for the bidirectional flow passage according to the present invention;
FIG. 7 is a view showing a state of the flap valve for the water outlet of the butterfly valve type flap valve for a two-way flow passage according to the present invention;
FIG. 8 is a state diagram illustrating a flap valve type conversion step of the butterfly valve for a bidirectional flow passage according to the present invention;
FIG. 9 is a state diagram of a flap valve type flap valve for a two-way flow passage according to the present invention;
FIG. 10 is a three-state diagram showing the conversion steps of the flap valve type flap valve for a two-way flow passage according to the present invention;
fig. 11 is a diagram showing a static state of a flap valve of a butterfly valve for a bidirectional flow passage according to the present invention;
fig. 12 is a diagram showing the operation state of the flap valve of the butterfly valve for the bidirectional flow channel of the present invention;
FIG. 13 is a view showing a state of the flap valve of the butterfly valve for a two-way flow passage according to the present invention;
in the figure: 1-baffle plate I; 1-1-one upper baffle plate; 1-2-first lower baffle; 2-baffle II; 2-1-second upper baffle; 2-2-second lower baffle; 3-connecting a screw rod; 4-baffle slot; 5-spacer strips; 6-hoist screw; 7-flap valve; 8-flap door shaft; 9-a bidirectional flow channel; 10-water flow direction.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are a butterfly valve type flap valve for a bidirectional flow passage, and the flap valve is mainly used in a bidirectional flow passage with water inlet and outlet functions.
As shown in fig. 2, the utility model relates to a butterfly valve formula flap valve for two-way runner, including baffle 1, overhead gage 1-1, baffle 1-2 under one, No. 2 baffles, No. 2 overhead gages, No. 2-2 baffles under two, connecting screw 3 (being the connecting rod), baffle groove 4, gasket strip 5, headstock gear screw 6, flap valve 7, flap valve axle 8, two-way runner 9, rivers direction 10.
The utility model discloses a No. one, No. two baffles constitute by two upper and lower little baffles, do respectively: the baffle plate comprises a first upper baffle plate 1-1, a first lower baffle plate 1-2, a second upper baffle plate 2-1 and a second lower baffle plate 2-2.
The first upper baffle 1-1 and the first lower baffle 1-2 are rigidly connected through a connecting screw rod 3, the second upper baffle 2-1 and the second lower baffle 2-2 are also rigidly connected with the connecting screw rod 3, each baffle is clamped in a baffle groove 4, and the baffle groove 4 is provided with water stop.
The upper baffle plate (1-1, 1-2,2-1, 2-2) and the lower baffle plate (1-1, 1-2, 2-2) of the first baffle plate and the second baffle plate and the connecting screw rod (3) are made of stainless steel materials and have good corrosion resistance.
The design structure of the first baffle is shown in figure 3, the upper baffle (1-1, 1-2) and the lower baffle (1-1, 1-2) can be approximately regarded as cuboid structures, and the lower side of the first upper baffle 1-1 and the upper side of the first lower baffle 1-2 are provided with inclined planes which are contacted with the flap gate gasket strip 5. The right side of fig. 3 is a construction view of the first upper baffle plate 1-1.
The upper baffles (1-1, 2-1) of the first baffle and the second baffle are both provided with a hoist, and are connected with the upper baffles (1-1, 2-1) through hoist screws 6, and the hoist screws 6 are rigidly connected with the upper baffles (1-1, 2-1).
The flap valve 7 is made of stainless steel materials, a flap valve shaft 8 is fixed in the bidirectional flow passage 9, rubber side water stops are arranged on two sides of the flap valve 7, and two ends of the flap valve shaft 8 are rigidly connected with two walls of the bidirectional flow passage 9.
As shown in the figure, the water flow is positive from right to left, and when the bidirectional flow channel serves as a water outlet flow channel, the butterfly valve type flap valve is opened in the positive direction and closed automatically in the reverse direction; when the bidirectional flow passage serves as a water inlet flow passage, the butterfly valve type flap valve is opened reversely and closed automatically in the forward direction.
The utility model relates to an application method that is used for two-way runner's butterfly valve formula clap door as follows:
1. when the bidirectional flow passage is used as the water outlet flow passage
The bidirectional flow channel 9 is used as a water outlet flow channel, the flap valve 7 is in a static state as shown in fig. 5, at the moment, the first baffle 1 is kept in a lifted state, the second baffle 2 is kept in a lowered state, the flap valve 7 abuts against the first lower baffle 1-2 and the second upper baffle 2-1 under the action of external water flow and gravity (namely, no water flow exists in the flow channel, the first lower baffle and the second upper baffle respectively limit the end part of the flap valve under the action of the external water flow to clamp the flap valve), external water flow is blocked, and the water outlet flow channel is in a closed state.
When the water flow channel begins to discharge water, the flap valve 7 is opened by the water flow, and reaches a stable state when the water flow impulsive force, the buoyancy and the gravity are balanced as shown in fig. 6 (two ends of the flap valve are respectively arranged between the corresponding upper baffle and the corresponding lower baffle and are not contacted with the corresponding upper baffle and the corresponding lower baffle).
To prevent the reverse flow of water, at the end of the water discharge, the flap valve 7 returns to the initial position as shown in fig. 7, and the water discharge passage is closed.
2. Flap valve form conversion
Assuming that the two-way flow passage 9 is the water outlet flow passage in the initial state, the flap valve 7 is in the form shown in fig. 7. When the water outlet channel is converted into the water inlet channel, the form of the flap valve 7 is converted as follows:
the method comprises the following steps: firstly, the first baffle 1 is put down, the second baffle 2 is lifted, and the flap valve 7 is in a state shown in figure 8 under the action of water flow (under the action of external water flow, the flap valve rotates, one end of the flap valve is in contact with the inner side edge of the upper baffle of the first baffle, and the other end of the flap valve is in contact with the inner side edge of the lower baffle of the second baffle).
Step two: the baffle 1 is lifted, the baffle 2 is put down, the flap valve 7 reaches the working state under the working condition of the water inlet channel, and the state of the flap valve 7 is as shown in figure 9 (the flap valve is flushed by water flow, and two ends of the flap valve are respectively arranged between the corresponding upper baffle and the corresponding lower baffle).
Step three: and finally, the baffle 1I is put down, and the baffle 2 II is lifted, so that the goal of preventing water flow from flowing backwards can be achieved when the flap valve 7 stops water inflow, and the state of the flap valve 7 is shown in figure 10, so that the flap valve form conversion is completed.
The three steps of the conversion have short operation time, and the state time of the flap valve in the first step and the second step is short.
3. When the bidirectional flow passage is used as a water inlet flow passage
The bidirectional flow passage 9 is used as a water inlet flow passage, the static state of the flap valve 7 is shown in fig. 11, at the moment, the baffle 1I is kept in a laid-down state, the baffle 2 II is kept in a lifted state, the flap valve 7 abuts against the baffle 1-1I and the baffle 2-2 II under the action of external water flow and gravity (namely, no water flow exists in the flow passage, and the baffle 1-1I and the baffle 2-2 II respectively limit the end part of the flap valve and clamp the flap valve under the action of the external water flow), and the flow passage is closed.
When the water flow channel starts to feed water, the flap valve 7 is flushed by water flow, and a stable state is achieved when the water flow impulsive force, the buoyancy force and the gravity are balanced as shown in fig. 12 (two ends of the flap valve are respectively arranged between the corresponding upper baffle and the corresponding lower baffle).
To prevent the reverse flow of water, at the end of the water intake, the flap valve 7 returns to the initial position as shown in fig. 13, and the flow path is closed.
The baffle is lifted, namely the upper baffle of the baffle is higher than the top of the bidirectional flow channel, and the bottom of the lower baffle is flush with the bottom of the bidirectional flow channel; the baffle is lowered, namely the top of the upper baffle of the baffle is flush with the top of the bidirectional flow channel, and the lower baffle exceeds the bottom of the bidirectional flow channel.
The foregoing has outlined rather broadly the present invention in terms of general words and detailed description, but not of limitation, and modifications thereof that may be made without departing from the spirit of the invention are intended to be covered by the appended claims.
Claims (6)
1. A butterfly valve type flap valve for a bidirectional flow passage comprises the bidirectional flow passage and a flap valve, and is characterized by further comprising a first baffle, a second baffle and a flap valve shaft, wherein the first baffle and the second baffle are respectively and vertically arranged on the bidirectional flow passage and respectively comprise an upper baffle, a lower baffle and two connecting rods, the two connecting rods are arranged in parallel, and the upper end and the lower end of each connecting rod are respectively and fixedly connected with the corresponding upper baffle and the corresponding lower baffle; the flap valve shaft is positioned between the first baffle and the second baffle, and the middle part of the flap valve is rotationally connected with the side wall of the bidirectional flow passage through the flap valve shaft; the first baffle and the second baffle are respectively lifted up or lowered down by the hoist, the flap valve rotates under the action of water flow, and two ends of the flap valve are respectively contacted with the corresponding upper baffle or lower baffle or are respectively arranged between the corresponding upper baffle and lower baffle, so that the bidirectional flow channel is in a closed state, a water inlet state or a water outlet state.
2. The butterfly valve flap valve for the bidirectional flow passage of claim 1, wherein the first baffle and the second baffle are connected with the bidirectional flow passage through baffle slots, and water stops are arranged in the baffle slots.
3. A butterfly valve flapper for a bi-directional flow passage as claimed in claim 1 wherein the height of each of said first and second flapper is greater than the height of the bi-directional flow passage, wherein one flapper is raised such that its upper flapper is higher than the top of the bi-directional flow passage and its lower flapper is flush with the bottom of the bi-directional flow passage, and the other flapper is lowered such that its upper flapper is flush with the top of the bi-directional flow passage and its lower flapper is beyond the bottom of the bi-directional flow passage.
4. The butterfly valve type flap valve for the bidirectional flow passage as claimed in claim 3, wherein the upper baffle and the lower baffle are respectively inclined surfaces at the contact part with the end part of the flap valve, and the end part of the flap valve is respectively provided with a gasket strip matched with the inclined surfaces.
5. The butterfly valve flap valve for a bidirectional flow passage of claim 1, wherein side water stops are provided at both sides of the flap valve.
6. The butterfly valve type flap valve for the bidirectional flow passage as claimed in claim 1, wherein said upper flap, said lower flap and said flap valve are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506446.6U CN210712757U (en) | 2019-09-10 | 2019-09-10 | Butterfly valve type flap valve for bidirectional flow passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506446.6U CN210712757U (en) | 2019-09-10 | 2019-09-10 | Butterfly valve type flap valve for bidirectional flow passage |
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| Publication Number | Publication Date |
|---|---|
| CN210712757U true CN210712757U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921506446.6U Active CN210712757U (en) | 2019-09-10 | 2019-09-10 | Butterfly valve type flap valve for bidirectional flow passage |
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| CN (1) | CN210712757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453651A (en) * | 2019-09-10 | 2019-11-15 | 扬州大学 | A kind of butterfly valve type flap valve and its application method for reversible passage |
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2019
- 2019-09-10 CN CN201921506446.6U patent/CN210712757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453651A (en) * | 2019-09-10 | 2019-11-15 | 扬州大学 | A kind of butterfly valve type flap valve and its application method for reversible passage |
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