CN209180486U - It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off - Google Patents
It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off Download PDFInfo
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- CN209180486U CN209180486U CN201821708296.2U CN201821708296U CN209180486U CN 209180486 U CN209180486 U CN 209180486U CN 201821708296 U CN201821708296 U CN 201821708296U CN 209180486 U CN209180486 U CN 209180486U
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- pipeline
- flashboard
- pressure
- close
- autobalance
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Abstract
The utility model discloses what one kind was capable of autobalance pressure pressure flowing full pipeline open-close on-off, comprising: conveying has the pipeline of press liquid, offers one on the upside of the tube wall of the pipeline and the rectangular aperture that is connected inside pipeline；One flashboard is arranged above pipeline, and seals and be slidably connected between the rectangular aperture；One is equipped with positioned at the side of the flashboard on the tube wall of the pipeline to be open with the circular vent being connected inside pipeline, the upper end of circular vent opening is equipped with sealing ring, it is opposite between flashboard and sealing ring to be slidably connected, a rubber seal cap is equipped with positioned at the lower part of the sealing ring on the flashboard, when flashboard is opened, the rubber seal cap can cooperate with the sealing ring by seal for pipe joints；The flashboard moves up and down in the rectangular aperture of pipeline, to be connected or be truncated the water flow in pipeline.The pressure equilibrium that enters maintenance flashboard both sides of the utility model by air, use when unexpected valve closing when thering is pressure pipe road to convey liquid suitable for flowing full.
Description
Technical field
The utility model relates to pressure conduit pressure control valve, it is specifically a kind of be capable of autobalance pressure have pressure flowing full
Pipeline open-close on-off.
Background technique
During conduit running, the operation of pressure flow in pipe is a kind of common state, when a flash that pipe ram is closed
Between, flashboard both ends will generate pressure difference, and can generate water hammer and cavitation to flashboard.According to hydraulic energy equation,
It is closed in a flash in flashboard, section Bernoulli equation before and after flashboard are as follows:
In formula:--- 1,2 section heads (m)；
--- 1,2 cross-section pressure heads (m)；
--- 1,2 cross-sectional flow section nonuniformity coefficients；
--- 1,2 section water volume flow rates (m/s)
--- head loss.
Due top 1,z 1,z 2It remains unchanged, but since flashboard is closed so that water velocity becomes zero before flashboard, water after flashboard
Flow velocity degree is then since inertia remains unchanged, so that opposite pressure is negative after making flashboard.
From the point of view of current technology situation, common pressure reducing valve focus on to the pressure of valve inner and valve front liquid into
Row is adjusted, to achieve the purpose that decompression, but the problem of negative pressure appearance for being generated after flashboard due to the inertia of water is still needed
It improves.The utility model patent is mainly focused on negative pressure appearance this problem generated due to liquid inertia after flashboard and is changed
Into.And common pressure reducing valve usually passes through adjusting, inlet pressure is reduced to the outlet pressure of a certain needs, and rely on medium itself
Energy, so that outlet pressure is automatically kept stabilization, but when outlet pressure is no better than inlet pressure, often generating failure cannot subtract
Pressure is easy blocking, and pressure oscillation is big after pipeline, and noise is big.The utility model is automatically adjusted using air and is varied without
Inlet pressure, noise reduce, and pipeline is simple after valve, and pipe vibration is small and is not easy to plug, and technique is simpler than traditional relief valve, is easy to
Maintenance reduces the pollution such as noise.
Utility model content
In order to solve the negative pressure appearance that flashboard rear is generated due to water inertia, the utility model provides one kind and can put down automatically
Weighing apparatus pressure has pressure flowing full pipeline open-close on-off.The switch can be using negative pressure after air supplement flashboard, so that air pressure before and after flashboard
Balance is kept, and mitigates water hammer.
The utility model adopts the following technical scheme that realization:
It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, comprising: conveying has the pipeline of press liquid, institute
State the rectangular aperture for offering one on the upside of the tube wall of pipeline and being connected inside pipeline；
One flashboard is movably disposed above pipeline, and seals and be slidably connected between the rectangular aperture, described
The bottom of flashboard has the arcuate structure mutually fitted with the inner wall of the pipe；
One is equipped with positioned at the side of the flashboard on the tube wall of the pipeline to open with the circular vent being connected inside pipeline
Mouthful, the upper end of circular vent opening is equipped with sealing ring, and it is opposite between flashboard and sealing ring to be slidably connected, institute is located on the flashboard
The lower part for stating sealing ring is equipped with a rubber seal cap, and when flashboard is opened, the rubber seal cap can match with the sealing ring
It closes seal for pipe joints；
Electronic headstock gear, for driving the flashboard to move up and down in the rectangular aperture of pipeline, to be connected or be truncated
Water flow in pipeline.
The bottom of the flashboard is equipped with sealing joint strip.
Inner wall of the pipe below flashboard is equipped with a groove being embedded in for the sealing joint strip.
The diameter range of the circular vent opening is 5mm ~ 20mm.
The top of circular vent opening is equipped with airstrainer.
The material of the airstrainer is any one in PP filter paper, glass fibre, terylene non-woven fabric and glass fibre
Kind.
Be located at circular vent opening on the tube wall of the pipeline and be equipped with and increase portion, the upper end of the circular vent opening to
On extend to the top for increasing portion, the airstrainer is set to described increase in portion.
The electronic headstock gear includes motor and driving gear set, wherein the drive shaft of motor passes through the driving cog
Wheel group and flashboard are sequentially connected.
The utility model has the advantages that
The utility model one kind be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, be different from traditional relief valve
Change to liquid pressure before valve inside and flashboard moves hydraulic pressure and hydrostatic pressing using hydraulic principle before not changing flashboard
Under the premise of by air enter maintain flashboard both sides pressure equilibrium, be primarily adapted for use in flowing full have pressure pipe road to liquid convey when
It is used when unexpected valve closing, easy to use compared to traditional relief valve, structure is simple, easy to maintenance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that schematic diagram is cutd open in the utility model side；
Fig. 3 is the cross-sectional schematic diagram of the utility model
Fig. 4 is electronic headstock gear schematic diagram
Wherein: 1 is flashboard, and 2 be electronic headstock gear, and 3 are open for circular vent, and 4 be rubber seal cap, and 5 be sealing ring,
6 be pipeline, and 7 be sealing joint strip, and 8 be filter screen.
Specific embodiment
The technical solution of the utility model is described in detail with specific example with reference to the accompanying drawings of the specification.
As shown in Figure 1, one kind, which is capable of having for autobalance pressure, presses flowing full pipeline open-close on-off, comprising: conveying has hydraulic fluid
The pipeline 6 of body, electronic headstock gear 2, rubber seal cap 4, sealing ring 5, sealing joint strip 7 and filter screen 8；Electronic headstock gear with
Power switch connection offers one on the upside of the tube wall of the pipeline and the rectangular aperture that is connected inside pipeline；
One flashboard 1 is movably disposed at 6 top of pipeline, and seals and be slidably connected between the rectangular aperture, institute
The bottom for stating flashboard 1 has the arcuate structure mutually fitted with the inner wall of the pipe；
One is equipped with positioned at the side of the flashboard on the tube wall of the pipeline to open with the circular vent being connected inside pipeline
Mouth 3, allows air into pipeline, makes 1 both sides air pressure of flashboard in 1s inner equilibrium.
A sealing ring 5 is installed below circular vent opening 3,5 thickness 10mm of the sealing ring and sealing ring side can be located at
It on flashboard 1, but is not fixed to each other with flashboard 1,5 other side of sealing ring is fixed on the inner wall of circular vent opening 3.
Rubber seal cap 4 is equipped with below flashboard 1, when flashboard 1 is in the open state, rubber seal cap 4 and 5 energy of sealing ring
It enough fits closely, pipeline is air tight water-tight.
The inner wall of the pipe of 1 lower section of flashboard has the groove of one 10 millimeters deeps, this groove is used for the sealing joint strip for 1 bottom of flashboard
Insertion, so that flashboard more preferably plays the role of that water flow is truncated.
The utility model one kind be capable of autobalance pressure have pressure flowing full pipeline open-close on-off by reduce flashboard two sides
Pressure difference new approaches, have flowing full that pressure pipe is more applicable, more environmentally friendly using air balance pressure difference and reduce water energy loss.
As a preferred embodiment of technical solutions of the utility model, 3 top of circular vent opening is equipped with one
The main function of filter screen is arranged to stop air pollutants to enter pipeline and polluting liquid in pipeline in filter screen.
As a preferred embodiment of technical solutions of the utility model, the material of the airstrainer be PP filter paper,
Any one in glass fibre, terylene non-woven fabric and glass fibre.
As a further preferred embodiments of technical solutions of the utility model, liquid splash is by filter screen in order to prevent
Increase as above venthole, increased heights can use the half of the pipe diameter.
The working principle for having pressure flowing full pipeline open-close on-off that the utility model one kind is capable of autobalance pressure is: automatic
Headstock gear 2 controls so that flashboard 1 is closed suddenly, and according to hydraulic principle, the pressure short time does not change on front side of flashboard, but
Water velocity is kept to 0 on front side of flashboard, and flashboard rear side is since inertia flow velocity remains unchanged, but pressure is negative, and makes flashboard two sides in short-term
Interior generation pressure difference, due to flashboard 1 decline close and on the left of flashboard it is smooth with pipeline junction, so frictional force very little can be with
It prevents liquid splash and forms certain vacuum degree, water flow is truncated in flashboard 1, and rubber seal cap 4 divides with sealing ring 5 at the same time
From, the outer air of pipeline is quickly entered via circular vent opening by filter screen 8 above pipeline and fills negative pressure on rear side of filling flashboard,
Flashboard two sides pressure difference is reduced, so that flashboard two sides pressure difference reduces, pressure difference is not too big, mitigates the damage to flashboard.
When flashboard 1 is opened, rubber seal cap 4 and the close contact of sealing ring 5 block venthole and make pipeline closed, guarantee have
Press liquid normal through.
The electronic headstock gear includes motor and driving gear set, wherein the drive shaft of motor passes through the driving cog
Wheel group and flashboard are sequentially connected.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. one kind, which is capable of having for autobalance pressure, presses flowing full pipeline open-close on-off, comprising: conveying has the pipeline of press liquid, special
Sign is, offers one on the upside of the tube wall of the pipeline and the rectangular aperture that is connected inside pipeline；
One flashboard is movably disposed above pipeline, and seals and be slidably connected between the rectangular aperture, the flashboard
Bottom there is the arcuate structure mutually fitted with the inner wall of the pipe；
It is equipped with one positioned at the side of the flashboard on the tube wall of the pipeline to be open with the circular vent being connected inside pipeline, circle
The upper end of shape vent openings is equipped with sealing ring, opposite between flashboard and sealing ring to be slidably connected, and is located on the flashboard described close
The lower part of seal ring is equipped with a rubber seal cap, and when flashboard is opened, the rubber seal cap can cooperate with the sealing ring will
Seal for pipe joints；
Electronic headstock gear, for driving the flashboard to move up and down in the rectangular aperture of pipeline, to be connected or be truncated pipeline
Interior water flow.
2. it is according to claim 1 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that institute
The bottom for stating flashboard is equipped with sealing joint strip.
3. it is according to claim 2 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that lock
Inner wall of the pipe below plate is equipped with a groove being embedded in for the sealing joint strip.
4. it is according to claim 1 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that institute
The diameter range for stating circular vent opening is 5mm ~ 20mm.
5. it is according to claim 1 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that circle
The top of shape vent openings is equipped with airstrainer.
6. it is according to claim 5 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that institute
The material of airstrainer is stated as any one in PP filter paper, glass fibre, terylene non-woven fabric and glass fibre.
7. it is according to claim 5 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that institute
It states and is located at circular vent opening on the tube wall of pipeline equipped with portion of increasing, the upper end of the circular vent opening extends upwardly to institute
The top in the portion of increasing is stated, the airstrainer is set to described increase in portion.
8. it is according to claim 1 be capable of autobalance pressure have pressure flowing full pipeline open-close on-off, which is characterized in that institute
Stating electronic headstock gear includes motor and driving gear set, wherein the drive shaft of motor passes through the driving gear set and flashboard
Transmission connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821708296.2U CN209180486U (en) | 2018-10-22 | 2018-10-22 | It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821708296.2U CN209180486U (en) | 2018-10-22 | 2018-10-22 | It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180486U true CN209180486U (en) | 2019-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821708296.2U Active CN209180486U (en) | 2018-10-22 | 2018-10-22 | It is a kind of be capable of autobalance pressure have pressure flowing full pipeline open-close on-off |
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| Country | Link |
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| CN (1) | CN209180486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301434A (en) * | 2022-08-15 | 2022-11-08 | 山东大学 | Electromagnetic valve control type pulse jet device and method |
-
2018
- 2018-10-22 CN CN201821708296.2U patent/CN209180486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301434A (en) * | 2022-08-15 | 2022-11-08 | 山东大学 | Electromagnetic valve control type pulse jet device and method |
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