CN1854577A - Valve of fluid bag - Google Patents
Valve of fluid bag Download PDFInfo
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- CN1854577A CN1854577A CN 200510025523 CN200510025523A CN1854577A CN 1854577 A CN1854577 A CN 1854577A CN 200510025523 CN200510025523 CN 200510025523 CN 200510025523 A CN200510025523 A CN 200510025523A CN 1854577 A CN1854577 A CN 1854577A
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- 239000012530 fluid Substances 0.000 title claims abstract description 189
- 238000005192 partition Methods 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 10
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000007789 sealing Methods 0.000 description 9
- 230000007547 defect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
There is disclosed a fluid bag valve which includes a main fluid pipe, several fluid bags and a valve casing. Fluid inlet and outlet controlling valves are disposed on both ends of the main fluid pipe separately. The several fluid bags are disposed in the valve casing. Each fluid bag is connected with the main fluid pipe by a fluid branch pipe and there are spaces between fluid bags. When the fluid bags are filled with pressure fluid, each pair of fluid bags tightly contact, so the valve presents the closed state. When the fluid in the bag is discharged, the fluid bags are separated each other, so the valve presents the open state.
Description
Technical Field
The present invention relates to valves, and more particularly to a fluid bladder valve.
Technical Field
There are many kinds of valves for controlling the flow of liquid or gas, including gate valves, stop valves, safety valves, ball valves, butterfly valves, flapper doors, etc., which are widely used in various industries such as city construction, environmental protection, petrochemical, electric power, metallurgy, etc. The large-diameter valve is in a shortage state in China, and meanwhile, the large-diameter valve has many defects in manufacturing and application, such as high manufacturing and processing requirements, complex valve structure, high price, poor sealing, difficulty in opening and closing (high driving requirements) and the like. Taking a gate valve and a butterfly valve as examples, the gate valve has the defects of large operating torque, easy damage to a valve body and a valve rod during operation, particularly a gate valve with a large caliber, large external dimension and weight, about 3200mm high as a DN1000mm caliber gate valve, and need to be operated by four persons at the same time, so the gate valve is generally used below DN 500. At present, generally, above DN300mm, a butterfly valve has gradually replaced a gate valve, please refer to fig. 1, the butterfly valve mainly includes a valve body 21, a valve blade 22, a sealing ring 23, a rotating shaft (revolute pair) 24 and a driving mechanism 25, although the butterfly valve has a greater advantage compared with the gate valve, the structure of the butterfly valve, whether it is a gate valve or a butterfly valve, still belongs to the category of the traditional mechanical structure, and there are disadvantages of high manufacturing and processing requirements, complex valve structure, high price, large volume and heavy weight. In practical industrial application, it is difficult to find a large-diameter valve with simple and reliable structure, small volume, high quality and low price.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned disadvantages of the conventional valve and providing a novel fluid bladder valve which is simple and reliable in structure, small in size, inexpensive and inexpensive.
In order to achieve the purpose, the invention adopts the following technical scheme:
a kind of valve of fluid bag is disclosed,
comprises a main fluid pipeline, a plurality of fluid bags and a valve shell,
wherein,
two ends of the main fluid pipeline are respectively provided with a fluid inlet control valve and a fluid outlet control valve;
the fluid bags are arranged in the valve shell, each fluid bag is communicated with the main fluid pipeline through a fluid branch pipeline, and intervals are reserved among the fluid bags.
A rigid support member is additionally arranged in the fluid bag, and two ends of the rigid support member are fixed on the valve shell.
A partition plate is additionally arranged between the fluid bags, and two ends of the partition plate are fixed on the valve shell.
And a tightening device is additionally arranged in the fluid bag and transversely fixed in the fluid bag.
And a branch pipe control valve is also arranged on the fluid branch pipe.
The valve housing is rectangular, circular or elliptical, or other regular or irregular shape.
The fluid bag is a strip-shaped bag or an annular bag.
And a supporting device is arranged on the valve shell and positioned on one side of the downstream of the fluid bag.
The supporting device is a screen or a fence.
And a protective plate is arranged on the valve shell and positioned on one side of the upstream of the fluid bag.
In the technical scheme of the invention, the valve mainly comprises a main fluid pipeline, a plurality of fluid bags and a valve shell, wherein a fluid inlet control valve and a fluid outlet control valve are respectively arranged at two ends of the main fluid pipeline; the fluid bags are arranged in the valve shell, each fluid bag is communicated with the main fluid pipeline through a fluid branch pipeline, and intervals are reserved among the fluid bags. When the fluid bags are filled with pressure fluid, the fluid bags are in close contact with each other, and the valve is in a closed state; when the fluid in the fluid bags is discharged, the fluid bags are separated from each other, and the valve is in an open state. The valve overcomes the defects of high manufacturing and processing requirements, complex valve structure, high price, poor sealing and high driving requirements of the traditional valve, particularly a large-diameter valve in manufacturing and application, is simple to manufacture, simple and safe to operate, reliable in sealing, small in size and height, low in production cost, low in operation cost and simple to maintain, and can be widely applied to various pipelines, particularly large-sized pipelines.
Drawings
Fig. 1 is a schematic structural diagram of a conventional butterfly valve.
Fig. 2 is a schematic view of the structure of the fluid bladder valve of the present invention.
Fig. 3 is a schematic view of the valve shown in fig. 2 in a closed state.
Fig. 4 is a schematic view of the valve shown in fig. 2 in an open state.
Fig. 5 is a schematic structural view of embodiment 2 of the fluid bladder valve of the present invention.
Fig. 6 is a schematic structural view of embodiment 3 of the fluid bladder valve of the present invention.
Fig. 7 is a schematic structural view of embodiment 4 of the fluid bladder valve of the present invention.
Fig. 8 is a schematic structural view of embodiment 5 of the fluid bladder valve of the present invention.
Fig. 9 is a schematic structural view of embodiment 6 of the fluid bladder valve of the present invention.
Fig. 10 is a schematic structural view of embodiment 7 of the fluid bladder valve of the present invention.
Fig. 11 is a schematic structural view of embodiment 8 of the fluid bladder valve of the present invention.
Fig. 12 is a schematic structural view of embodiment 9 of the fluid bladder valve of the present invention.
Detailed Description
To further illustrate the above objects, technical solutions and effects of the present invention, the present invention will be described in detail below by way of examples with reference to the above drawings.
The design idea of the fluid bag valve provided by the invention is that a plurality of pressure fluid bags are adjacently arranged and combined, the number of the fluid bags is usually at least one, two or more, when the fluid bags are filled with pressure fluid, the fluid bags are tightly contacted, and meanwhile, the valve shell is tightly contacted with the related fluid bags, so that the valve is in a closed state; when the pressure in the fluid bag is removed (the fluid is not pressurized), the fluid in the fluid bag is led out by using a negative pressure device to contract the fluid bag, or a tightening device is arranged in the fluid bag in advance, the fluid bag is contracted by using the traction of the tightening device, or the fluid bag can be contracted by using other methods, so that the fluid bags are separated from each other, and the valve is in an open state.
Example 1
As shown in fig. 2, the valve comprises a main fluid pipe 1, a plurality of fluid bags 2 and a valve housing 3, wherein one end 4 and the other end 5 of each fluid bag 2 are fixedly and hermetically connected with the valve housing 3. The main fluid conduit 1 is connected to each fluid cell 2 via a plurality of fluid branch conduits 7, and the main fluid conduit 1 has an inlet fluid control valve 8 and a flange 9 at one end thereof and an outlet fluid control valve 10 and a flange 11 at the other end thereof. Is connected with a pressure fluid source (such as an air compressor, a hydraulic pump, a tap water pipe network and the like) through a flange 9, and a flange 11 is connected with a negative pressure device. The opening and closing of the inlet and outlet fluid control valves 8, 10 may be manually or automatically controlled.
Fig. 3 shows the valve in a closed state, when the valve needs to be closed, the outlet fluid control valve 10 is first closed, the inlet fluid control valve 8 is opened, and the pressure fluid from the pressure fluid source flows into the main pipe 1 from the inlet fluid control valve 8 and flows into each fluid bag 2 through each branch pipe 7, the fluid bags 2 are expanded and tightly contact with each other, and the valve housing 3 and the adjacent fluid bags 2 are also tightly contacted, at this time, the valve is in a closed state.
Fig. 4 shows the valve in an open state, when the valve needs to be opened, the inlet fluid control valve 8 is first in a closed state, the outlet fluid control valve 10 is opened, and the fluid in each fluid bag 2 is converged into the main pipe 1 through each branch pipe 7 by the suction effect of the negative pressure device connected to the flange 11 and led out to the negative pressure device, so that the fluid bags 2 are contracted and separated from contact with each other, and the valve is in an open state at this time.
Example 2
As shown in fig. 5, in this embodiment, the structure is substantially the same as that of the embodiment, and in order to enhance the stability of the position of the fluid cells 2 in the valve, a rigid support rod 12 may be added to the inside of each fluid cell 2, which may substantially limit the swing range of the fluid cell.
Example 3
As shown in fig. 6, in the structure of this embodiment, branch control valves 13 may be installed in the branch pipes 7 to control the inlet and outlet of the pressure fluid of each fluid bag 2, so that the valve has a more stable flow rate regulating function, that is, by controlling the opening of each branch control valve 13, a part of the fluid bags 2 are filled with the pressure fluid, and a part of the fluid bags 2 are not filled with the pressure fluid, so that different valve opening areas can be obtained to realize the flow rate regulating function of the valve. In addition, a partition plate 14 can be arranged between the fluid bags 2, two ends of the partition plate 14 are fixed with the valve shell 3, when the fluid bags 2 are in close contact, a partition plate 14 is arranged in the middle of the fluid bags, and therefore when the fluid bags 2 expand independently, the fluid bags 2 are in close contact with the partition plates 14, and the flow regulation function is more favorably realized.
Example 4
In this embodiment, tightening device 15 may also be preset inside the fluid bladder, as shown in fig. 7, and tightening device 15 may be a spring device, such that when outlet fluid control valve 10 is in an open state, traction of tightening device 15 causes fluid bladder 2 to contract out of contact with each other, which is the open state of the valve.
The method of contracting the fluid cell 2 is varied and the spring means is simply one form of construction.
Example 5
The valve described above is rectangular in shape and may be designed in other shapes such as circular, oval, or other regular or irregular shapes. As shown in fig. 8, the valve housing 3 is circular, and the shape of the fluid bladder 2 can be adaptively adjusted according to the shape of the valve housing 3.
Example 6
In the valve of the present invention, the arrangement of the fluid bladder 2 is varied to suit the needs of the field of use and the corresponding valve shape. What has been described above is a linear single-column arrangement. A linear multi-column arrangement is also possible, as shown in fig. 9 for a linear two-column arrangement.
Example 7
The fluid bags 2 may be arranged in a ring shape, as shown in fig. 10, a fixed bracket 16 is integrally connected with the valve housing 3, the fluid bags 2 are arranged in a ring shape, and the main fluid pipeline 1 and the branch fluid pipeline 7 are communicated with each ring-shaped fluid bag 2.
Example 8
To obtain a more reliable sealing performance, the individual fluid cells 2 of the valve may be arranged in multiple layers. As shown in fig. 11, the fluid bladder 2 is arranged in two layers, which corresponds to two valves connected in series. This multi-layer fluid bladder arrangement is convenient in the present valve design, which increases the sealing reliability of the valve.
Example 9
As shown in fig. 12, in order to improve the stress of the fluid cells 2, a support device 17 such as a screen or a fence may be disposed at the downstream end of the fluid cells 2 to support the fluid cells 2; while it is also possible to arrange a protective plate 18 upstream of the fluid cell 2. The purpose of these measures is to improve the stress of each fluid cell 2, to increase the service life of the fluid cell, and to stabilize the position of each fluid cell.
In actual use, the fluid bladder may be made of a suitable material having suitable strength, suitable flexibility, suitable elasticity, suitable wear resistance, suitable corrosion resistance and suitable temperature resistance, depending on the application of the valve.
In summary, the fluid bladder valve of the present invention has the following advantages compared to the conventional valve:
one advantage of the present invention is that the valve is simple to operate
The fluid bag valve removes a driving mechanism in the traditional valve, and directly utilizes pressure fluid to expand or contract the fluid bag so as to realize the functions of blocking, adjusting and opening the pipeline channel by the valve; meanwhile, the fluid bag valve does not have moving pair parts in the traditional valve, such as a guide rail pair in a gate valve, a butterfly valve, a rotating pair in a baffle door and the like; in addition, the speed of valve opening or valve closing is determined by the expansion or contraction of the fluid bladder, i.e., is primarily dependent on the speed of filling or emptying, and therefore, the speed of valve opening or closing is easily controlled and safe to operate.
The invention has the other advantages of simple valve manufacture, lower processing requirement and good sealing performance
The fluid bags are flexible, so that under sufficient fluid pressure, the contact between the fluid bags and the valve body can be tightly attached to form reliable sealing; because the fluid bladder can be flexibly compensated, the machining requirements of the valve body can be relatively much lower; in the traditional valve, particularly in the metal hard sealing occasion, the processing requirements of parts are very high, otherwise, various deformations can cause the valve body and the valve plate not to be tightly jointed, gaps are easy to appear, and leakage points are formed; meanwhile, the invention has no kinematic pair with complex manufacture and high processing requirement, further reduces leakage points and reduces the requirements of manufacturing and processing manufacturability.
Yet another advantage of the present invention is that the valve is small and lightweight
The fluid cell valve is implemented by an arrangement of multiple fluid cells, the height of which is primarily related to the diameter of the individual fluid cells, so that the height of the valve, particularly a large bore valve, can be made relatively small. In addition, the complex drive mechanism of the conventional valve is replaced by some simple, small diameter fluid tube, and therefore the overall peripheral size of the new fluid bladder valve is reduced considerably compared to the conventional valve. Similarly, the weight of the fluid bladder valve is very light, mainly the weight of the valve body itself and the weight of other fluid bladder support members.
Still another advantage of the present invention is that it facilitates the manufacture of large bore valves and is low cost
Since the fluid cell valve can be implemented by being divided into a plurality of fluid cells, a larger-diameter fluid cell valve can be obtained by combining a larger number of fluid cells. Thus, the cost of a fluid bladder valve is substantially proportional to the flow area of the valve as the valve caliber increases. With conventional valves, the manufacturing cost of the valve increases rapidly as the valve caliber increases.
Of course, those skilled in the art will recognize that the above-described embodiments are illustrative only, and not intended to be limiting, and that changes and modifications of the above-described embodiments are intended to be within the scope of the appended claims, as they fall within the true spirit and scope of the present invention.
Claims (10)
1. A kind of valve of fluid bag is disclosed,
it is characterized in that the preparation method is characterized in that,
the valve comprises a main fluid pipeline, a plurality of fluid bags and a valve shell,
wherein,
two ends of the main fluid pipeline are respectively provided with a fluid inlet control valve and a fluid outlet control valve;
the fluid bags are arranged in the valve shell, each fluid bag is communicated with the main fluid pipeline through a fluid branch pipeline, and intervals are reserved among the fluid bags.
2. The fluid cell valve of claim 1,
it is characterized in that the preparation method is characterized in that,
a rigid support member is additionally arranged in the fluid bag, and two ends of the rigid support member are fixed on the valve shell.
3. The fluid cell valve of claim 1,
it is characterized in that the preparation method is characterized in that,
a partition plate is additionally arranged between the fluid bags, and two ends of the partition plate are fixed on the valve shell.
4. The fluid cell valve of claim 1,
it is characterized in that the preparation method is characterized in that,
and a tightening device is additionally arranged in the fluid bag and transversely fixed in the fluid bag.
5. The fluid cell valve of claim 1,
it is characterized in that the preparation method is characterized in that,
and a branch pipe control valve is also arranged on the fluid branch pipe.
6. The fluid cell valve of any one of claims 1-5,
it is characterized in that the preparation method is characterized in that,
the valve housing is rectangular, circular or elliptical, or other regular or irregular shape.
7. The fluid cell valve of any one of claims 1-5,
it is characterized in that the preparation method is characterized in that,
the fluid bag is a strip-shaped bag or an annular bag.
8. The fluid cell valve of any one of claims 1-5,
it is characterized in that the preparation method is characterized in that,
and a supporting device is arranged on the valve shell and positioned on one side of the downstream of the fluid bag.
9. The fluid cell valve of claim 8,
it is characterized in that the preparation method is characterized in that,
the supporting device is a screen or a fence.
10. The fluid cell valve of any one of claims 1-5,
it is characterized in that the preparation method is characterized in that,
and a protective plate is arranged on the valve shell and positioned on one side of the upstream of the fluid bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510025523 CN1854577A (en) | 2005-04-28 | 2005-04-28 | Valve of fluid bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510025523 CN1854577A (en) | 2005-04-28 | 2005-04-28 | Valve of fluid bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1854577A true CN1854577A (en) | 2006-11-01 |
Family
ID=37194932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510025523 Pending CN1854577A (en) | 2005-04-28 | 2005-04-28 | Valve of fluid bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1854577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013701A (en) * | 2017-05-14 | 2017-08-04 | 四川迈铁龙科技有限公司 | Bellows air-valve |
-
2005
- 2005-04-28 CN CN 200510025523 patent/CN1854577A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013701A (en) * | 2017-05-14 | 2017-08-04 | 四川迈铁龙科技有限公司 | Bellows air-valve |
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| WD01 | Invention patent application deemed withdrawn after publication |