CN209587216U - A kind of fluid is selected to device - Google Patents
A kind of fluid is selected to device Download PDFInfo
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- CN209587216U CN209587216U CN201920000021.1U CN201920000021U CN209587216U CN 209587216 U CN209587216 U CN 209587216U CN 201920000021 U CN201920000021 U CN 201920000021U CN 209587216 U CN209587216 U CN 209587216U
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Abstract
The utility model discloses a kind of fluids to select to device, the device is the important component in fluid system, fluid can be achieved selects Xiang Gongneng automatically, outlet end including cylinder and among cylinder, cylinder two sides are respectively provided with the left input end and right input end of connection external pipe, piston is placed in the cylinder, the left input end and right input end are respectively arranged with end flange, end flange and cylinder body outer wall weld, closure plate flange is installed outside end flange, the inner hole of closure plate flange is less than piston external diameter, sealing surface is formed on the inside of the piston end surface and closure plate flange；The utility model optimizes the design of pipe-line system structure, improves the reliability and maintainability of pipe-line system, has better adaptability, has important economic benefit and social benefit.
Description
Technical field
The utility model belongs to fluid technique field, is related to a kind of fluid and selects to device, especially suitable for gas or liquid
Transportation system, the case where providing fluid commonly used in two fluid source parallel connections for an equipment.
Background technique
Current certain feed flow, gas supply occasion are likely to occur the case where two fluid sources provide fluid for the same equipment,
Usual two fluid sources are relationship in parallel, only one fluid source of any time work, when selection fluid in logic in connection
When source 1, fluid source may bring damage by 2 reverse counterflow of fluid source or fluid sources 2.
Under normal conditions, to solve the problems, such as that reverse counterflow generally uses Fig. 5 scheme to realize, respectively in two fluid source ports
Place's installation check-valves, when fluid source 1 is run, corresponding check-valves is opened, and fluid can be normal through since fluid source 1 be run
When, acting in opposition is generated to the check-valves in right branch, check-valves is in close state, and fluid can not pass through, and avoid fluid
Reversely.The shape body that check-valves opens and closes works as flow direction as shown in figure 4, Wafer Check Valves is made of valve body and piston
When identical as actual requirement, block is moved up, and occurs gap around block and valve body, and fluid is flowed through from gap site.It can from Fig. 5
To find out, Wafer Check Valves inlet fluid area is circle, and internal circulation area is annular, and circulation area substantially reduces, draws
It plays flow velocity to become larger, causes fluid oscillation and empty song.
The choosing realizes fluid automatic reverse by the sliding of internal piston to device, in import and outlet stream path
Area does not mutate, substantially identical as main pipeline circulation area, therefore automatic selection valve will not cause additional fluid oscillation.
Utility model content
The purpose of this utility model is that optimizing the structure arrangement of cooling system, enhancing the reliability of cooling system and fitting
Ying Xing improves the maintainability of cooling system.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of fluid is selected to device, including cylinder
And the outlet end among cylinder, cylinder two sides are respectively provided with the left input end for connecting external pipe and right import
It holds, is placed with piston in the cylinder, the left input end and right input end are respectively arranged with end flange, end flange
It is welded with cylinder body outer wall, closure plate flange is installed outside end flange, the inner hole of closure plate flange is less than piston external diameter, the work
It fills in and forms sealing surface on the inside of end face and closure plate flange.
A kind of fluid is selected to device, and piston is equipped with the type groove that outer diameter is less than cylinder internal diameter.Piston in this way
Lateral section is just in the contact area that I-shaped, I-shaped structure can reduce piston and cylinder inboard wall, is slided more smooth.
A kind of fluid is selected to device, and it is close that gasket seal progress is provided between closure plate flange and end flange
Envelope.
A kind of fluid is selected to device, and left input end, right inlet end and an outlet end are respectively adopted by machining
Standard fittings formed with barrel soldering.
The beneficial effects of the utility model are: inner barrel piston can be moved according to the operation mobility status of external inlet fluid
It is dynamic, realize fluid select automatically to；Compared with existing select to device, the utility model fixed form is simple and reliable, occupies empty
Between it is small, circulation area is big, have better adaptability, reduce the vibration noise of pipe-line system, while optimizing circuit design
And it is easy to maintenance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the overall assembling schematic diagram of the utility model；
Fig. 3/Fig. 4 is working condition when the utility model fluid enters from left/right side；
Fig. 5 is to be selected using the fluid that conventional check valves are realized to scheme；
Fig. 6 is to be selected using the fluid that utility model device is realized to scheme；
Fig. 7/Fig. 8 be conventional check valves it is reverse/forward flow when working condition；
Fig. 9 is the variation of circulation area in valve body when being worked using conventional check valves.
Each appended drawing reference are as follows: 1-cylinder, 2-pistons, 3-left input ends, 4-right input ends, 5-outlet ends, 6-ends
Portion's flange, 7-gasket seals, 8-closure plate flanges, 9-washers, 10-screws.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Shown in referring to Fig.1, a kind of fluid disclosed by the utility model is selected to device, whole T-shaped, point left import and it is right into
Mouthful, intermediate one is outlet, and inlet and outlet are connect with external pipe, can only have an entrance to have fluid entrance in any case, is wrapped
Cylinder 1 and the outlet end 5 among cylinder 1 are included, 1 two sides of cylinder are respectively provided with the left input end of connection external pipe
3 and right input end 4, piston 2 is placed in the cylinder 1, and the left input end 3 and right input end 4 are respectively arranged with end
Portion's flange 6, end flange 6 and 1 outer wall of cylinder weld, and are equipped with closure plate flange 8, the inner hole of closure plate flange 8 outside end flange 6
Less than 2 outer diameter of piston, sealing surface is formed on the inside of 2 end face of piston and closure plate flange 8.
The utility model uses Standard fittings as choosing to device cylinder 1, and installation piston 2 is used to change stream inside cylinder 1
Body flow direction, both ends closure plate flange 8 can be formed with 2 end face of piston and be sealed, prevent fluid to be redirected back into, realize the automatic choosing of fluid
To.Fluid is selected to device and is formed using Standard fittings by machining and welding, and when use only needs inlet and outlet and pipe
Road welding as shown in Fig. 2, being provided with gasket seal 7 between closure plate flange 8 and end flange 6, and passes through washer 9 and spiral shell
Nail 10 is fastenedly connected.
When utility model device works, as shown in figure 3, when needing left side fluid to be passed through, the flowing of fluid is by piston
It shifts on the right side of cylinder, forms sealing surface with right side, prevent fluid from entering right side pipeline；As shown in figure 4, when needing right side fluid
When being passed through, piston shifts cylinder left end by fluid, forms sealing surface with left side, prevents fluid from entering left side pipeline.
Fig. 5 is to be selected using the fluid that conventional check valves are realized to scheme, and Fig. 6 is the stream realized using utility model device
Body is selected to scheme, Fig. 7 and Fig. 8 be conventional check valves fluid it is reverse/forward flow when working condition；Fig. 9 is to be stopped using tradition
Return the variation of circulation area in valve body when valve works.By comparing it can be seen that: when fluid source operation, piston 2 is pushed to cylinder 1
Right end prevents fluid from entering fluid source 2 with right end closure plate flange contact, and fluid is avoided to pass through fluid source 2 reverse counterflow or right
Fluid source 2 damages, and equally, when fluid source 2 is run, piston is pushed to cylinder left end, and left end closure plate flange contact,
It prevents fluid from entering fluid source 1, fluid is avoided to damage by 1 reverse counterflow of fluid source or fluid sources 1.
Further, the piston 2 is equipped with the type groove that outer diameter is less than 1 internal diameter of cylinder.The lateral section of piston 2 so is just in
I-shaped, I-shaped structure can reduce the contact area of piston 2 Yu 1 inner wall of cylinder, slide more smooth, described left import
End 3, right input end 4 and outlet end 5 are respectively adopted to be formed by mach Standard fittings and the welding of cylinder 1.
The standard pipe that latus rectum is DN100 may be selected in the cylinder 1 of the utility model, and it is Φ's 100 that diameter is placed in cylinder
Polytetrafluoroethylene (PTFE) pole, for reduce polytetrafluoroethylene (PTFE) pole and cylinder inboard wall contact area, by polytetrafluoroethylene (PTFE) pole section
It is processed into I-shaped, only pole both ends are contacted with cylinder inboard wall.End flange and DN100 pipeline outer wall weld, after the completion of welding
DN100 inner wall of the pipe is handled, it is ensured that teflon rod can be free to slide in cylinder.Closure plate flange inner diameter is
DN80 can be formed with closure plate flange and be sealed when the piston that diameter is DN100 slides into the closure plate flange that internal diameter is DN80
Face prevents fluid countercurrent current.Closure plate flange is connected by M12 screw with the internal screw thread in end flange, closure plate flange and end method
Gasket seal is placed between orchid.
Only need structure as shown in Figure 6 to select fluid to be mounted in pipeline to device, when fluid source 1 is opened, select to
Piston in device Slideslip to the right, prevents fluid from right side countercurrent.When fluid source 2 is opened, select piston into device to
Left slide prevents fluid from left side adverse current.
It, can be to work by disassembly any end closure plate flange if piston is selected into device to occur wearing or Caton situation
Plug is repaired or replaced.
The utility model optimizes the design of pipe-line system structure, reduces the vibration noise of pipe-line system, improves pipeline
The reliability and maintainability of system, have better adaptability, have important economic benefit and social benefit.
The utility model has the advantages of simple structure and easy realization, cheap；Requirements of installation space is small, simplifies pipeline configuration cloth
Office；Reduce pipeline joint face, improves the reliability of pipeline；Internal circulation area is uniform, reduces pipe vibration noise
In short, it is exactly to solve two that fluid described in the utility model, which is selected to device, compared with traditional check-valves
A fluid source parallel connection leads to the problem of reverse counterflow, while solving the problems, such as the vibration noise of pipeline.
The utility model optimizes the design of pipe-line system structure, improves the reliability and maintainability of pipe-line system, has more
Good adaptability has important economic benefit and social benefit.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and the embodiment that part uses,
For those of ordinary skill in the art, without departing from the concept of the present invention, if can also make
Dry modification and improvement, these are all within the protection scope of the present invention.
Claims (4)
1. a kind of fluid is selected to device, it is characterised in that: including cylinder (1) and it is set to cylinder (1) intermediate outlet end (5),
Cylinder (1) two sides are respectively provided with the left input end (3) and right input end (4) of connection external pipe, and the cylinder (1) is interior
It is placed with piston (2), the left input end (3) and right input end (4) are respectively arranged with end flange (6), end flange (6)
Outside is equipped with closure plate flange (8), and the inner hole of closure plate flange (8) is less than piston (2) outer diameter, the piston (2) end face and stifled
Sealing surface is formed on the inside of plate flange (8).
2. a kind of fluid according to claim 1 is selected to device, which is characterized in that the piston (2) is equipped with outer diameter
Less than the type groove of cylinder (1) internal diameter.
3. a kind of fluid according to claim 1 or 2 is selected to device, which is characterized in that the closure plate flange (8) and end
Gasket seal (7) are provided between portion's flange (6).
4. a kind of fluid according to claim 3 is selected to device, which is characterized in that the left input end (3), right import
End (4) and outlet end (5) is respectively adopted to be formed by mach Standard fittings and cylinder (1) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000021.1U CN209587216U (en) | 2019-01-01 | 2019-01-01 | A kind of fluid is selected to device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000021.1U CN209587216U (en) | 2019-01-01 | 2019-01-01 | A kind of fluid is selected to device |
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| Publication Number | Publication Date |
|---|---|
| CN209587216U true CN209587216U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920000021.1U Active CN209587216U (en) | 2019-01-01 | 2019-01-01 | A kind of fluid is selected to device |
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| CN (1) | CN209587216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611581A (en) * | 2019-01-01 | 2019-04-12 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of fluid is selected to device |
| CN110878847A (en) * | 2019-12-13 | 2020-03-13 | 瑞立集团瑞安汽车零部件有限公司 | Low output device is got to fluid valve |
-
2019
- 2019-01-01 CN CN201920000021.1U patent/CN209587216U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611581A (en) * | 2019-01-01 | 2019-04-12 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of fluid is selected to device |
| CN110878847A (en) * | 2019-12-13 | 2020-03-13 | 瑞立集团瑞安汽车零部件有限公司 | Low output device is got to fluid valve |
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