CN220151904U - Fluid discharge valve with plunger anticorrosion device - Google Patents
Fluid discharge valve with plunger anticorrosion device Download PDFInfo
- Publication number
- CN220151904U CN220151904U CN202321485428.0U CN202321485428U CN220151904U CN 220151904 U CN220151904 U CN 220151904U CN 202321485428 U CN202321485428 U CN 202321485428U CN 220151904 U CN220151904 U CN 220151904U
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- China
- Prior art keywords
- plunger
- fluid
- fluid discharge
- outer cylinder
- valve body
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- 239000012530 fluid Substances 0.000 title claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims abstract description 27
- 239000011261 inert gas Substances 0.000 claims abstract description 27
- 230000007797 corrosion Effects 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of fluid discharge valves, in particular to a fluid discharge valve with a plunger anti-corrosion device, which comprises a valve body and further comprises: the external gas blocking assembly comprises a plunger inserted into the valve body, a fluid outlet is formed in one side of the valve body, a handle is fixedly mounted at the top of the plunger, an outer cylinder is arranged on the inner side of the valve body, an inner cylinder is arranged on the inner side of the outer cylinder, an upper sealing gasket is mounted on one side of the inner cylinder, a lower sealing gasket is mounted on the other side of the inner cylinder, a gas outlet is formed in one side of the outer cylinder, a gas inlet is formed in the other side of the outer cylinder, and inert gas is filled in the position of the gas inlet. The present utility model provides a valve for discharging fluid stored in a storage container such as a tank from below the storage container, and aims to provide a fluid discharge valve capable of preventing corrosion of a plunger even if the fluid is corrosive and improving maintainability when corrosion occurs.
Description
Technical Field
The utility model relates to the technical field of fluid discharge valves, in particular to a fluid discharge valve with a plunger anti-corrosion device.
Background
In the prior art, when discharging the stored fluid from a storage container such as a canister to the outside, the fluid is discharged by operating a fluid discharge valve provided at the bottom of the storage container. In the conventional fluid discharge valve, when the medium is a corrosive fluid or when the corrosive fluid is generated by reaction with moisture in the air, the corrosive fluid contacts the plunger, or when the plunger in fluid contact contacts the air, the plunger is corroded.
The plunger can be maintained when it is slightly corroded, but the valve body needs to be replaced when it is severely corroded.
There is a need for a fluid outlet valve that is less susceptible to corrosion when the medium is a corrosive fluid, or that is inexpensive and easy to maintain even if corroded
Disclosure of Invention
The present utility model is directed to a fluid discharge valve having a plunger corrosion protection device to solve the above-mentioned problems.
The technical scheme of the utility model is as follows: a fluid discharge valve having a plunger corrosion protection device, comprising a valve body, further comprising:
the external gas blocking assembly comprises a plunger inserted into the valve body, a fluid outlet is formed in one side of the valve body, a handle is fixedly mounted at the top of the plunger, an outer cylinder is arranged on the inner side of the valve body, an inner cylinder is arranged on the inner side of the outer cylinder, an upper sealing gasket is mounted on one side of the inner cylinder, a lower sealing gasket is mounted on the other side of the inner cylinder, a gas outlet is formed in one side of the outer cylinder, a gas inlet is formed in the other side of the outer cylinder, and inert gas is filled in the position of the gas inlet.
According to a further technical scheme, the outer cylinder and the inner cylinder are mutually connected and fixed in a sealing mode.
According to a further technical scheme, a sealing cavity is formed between the inner cylinder and the upper sealing gasket and between the inner cylinder and the lower sealing gasket, inert gas is filled in the sealing cavity, and an inert gas nozzle is arranged on one side of the gas inlet.
According to a further technical scheme, the inert gas nozzle is connected with the flowmeter.
According to a further technical scheme, the plunger consists of two sections of cylinders with different diameters, and the diameter of the lower side of the plunger is 75% of the diameter of the upper side of the plunger.
The present utility model provides a fluid discharge valve having a plunger corrosion protection device by improvement which has the following improvements and advantages over the prior art; the device provides corresponding solutions to the problems of the plunger pump in the prior art:
the present utility model provides a valve for discharging fluid stored in a storage container such as a tank from below the storage container, and aims to provide a fluid discharge valve capable of preventing corrosion of a plunger even if the fluid is corrosive and improving maintainability when corrosion occurs. The specific principle is as follows:
the valve for discharging the fluid, which is arranged below the storage tank, consists of a valve body, a plunger for sealing the fluid, a fluid discharge port, a handle for enabling the plunger to move vertically, and gaskets for isolating the plunger and the fluid (namely an upper sealing gasket and a lower sealing gasket), wherein the inert gas nozzle is used for inflating the inside of the gas inlet, so that a closed space between the plunger and the upper and lower gaskets as well as between the plunger and the inner cylinder is filled with inert gas, the plunger can not be directly contacted with air to cause corrosion even if being polluted by corrosive liquid, and the problems in the prior art are directly and correspondingly solved.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic cross-sectional view of a valve of the present utility model when closed;
FIG. 2 is a schematic cross-sectional view of the valve of the present utility model when opened;
fig. 3 is a schematic cross-sectional structure of a comparative example of the prior art in the present utility model.
Reference numerals illustrate:
1. a plunger; 2. a fluid discharge port; 3. an upper sealing gasket; 4. a lower sealing gasket; 5. an outer cylinder; 6. an inner cylinder; 7. a gas outlet; 8. a gas inlet.
Detailed Description
The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
the utility model provides a fluid discharge valve with a plunger anti-corrosion device through improvement, which comprises the following technical scheme:
as shown in fig. 1-3, a fluid discharge valve with a plunger corrosion protection device includes a valve body, further comprising:
the outside air blocking assembly comprises a plunger 1 inserted into the valve body, a fluid outlet 2 is formed in one side of the valve body, a handle is fixedly arranged at the top of the plunger 1, an outer cylinder 5 is arranged on the inner side of the valve body, an inner cylinder 6 is arranged on the inner side of the outer cylinder 5, an upper sealing gasket 3 is arranged on one side of the inner cylinder 6, a lower sealing gasket 4 is arranged on the other side of the inner cylinder 6, a gas outlet 7 is formed in one side of the outer cylinder 5, a gas inlet 8 is formed in the other side of the outer cylinder 5, and inert gas is filled in the position of the gas inlet 8.
Working principle:
the present utility model is a fluid discharge valve for discharging a fluid, which is mounted below a storage container such as a canister, and has a plunger 1 corrosion preventing device.
Specifically, as shown in fig. 1 and 2, the corrosion protection device for the plunger 1 includes an external gas blocking means, and the portion of the external gas blocking means where the plunger 1 contacts the fluid is composed of an outer tube 5 and an inner tube 6, so that corrosion can be prevented by contact with an external inert gas.
As shown in fig. 3, in the conventional technique, when fluid adheres to the lower side of the plunger 1, the valve is opened, and the plunger 1 in contact with the fluid directly contacts with the outside air, thereby causing corrosion.
In view of the above, the present utility model allows the plunger 1, which may be in contact with a corrosive fluid, to stay in the outside air blocking assembly even in a state where the valve is opened, and to prevent corrosion by contact with an outside inert gas.
An inert gas circulation space is arranged between the plunger 1 and the external gas blocking component, and a gas inlet 8 nozzle and a gas outlet 7 nozzle are respectively arranged above and below the external gas blocking component to form a structure for circulating inert gas. By passing the inert gas, the corrosive fluid adhering to the plunger 1 or the outside air blocking member or both can be removed.
At the same time, by keeping the inert gas flowing, the space between the plunger 1 and the external gas blocking component can be kept in the inert gas environment or replaced, so as to prevent the external gas from mixing in.
The plunger 1 has a structure in which the upper diameter is large and the lower diameter is small, and the diameter of the lower plunger 1 is preferably less than 80% of the diameter of the upper plunger 1. By reducing the diameter of the lower plunger 1, the gap between the external gas blocking component and the plunger 1 is enlarged and the inert gas input is increased when the valve is in the closed state without changing the size of the valve body.
In the prior art, when the valve is controlled from opening to closing, the corroded plunger 1 directly contacts with the sealing piece, and the surface of the sealing piece is worn, so that the air tightness is poor, and the sealing piece needs to be replaced frequently.
The device can prevent the external air from flowing into the blocking assembly even if the upper sealing gasket 3 is worn by keeping the inert air flowing in the clearance between the plunger 1 and the external air blocking assembly.
The lower sealing gasket 4 is removed, the external gas blocking assembly can be pulled out, and when the external gas blocking assembly corrodes, the external gas blocking assembly can be removed for maintenance or replacement. Since the inside of the outside air blocking member is provided with the detachable inner tube 6 for corrosion prevention, maintenance and replacement of the outside air blocking member become easier.
A fluid discharge valve having a plunger corrosion preventing device is provided, wherein an outer cylinder 5 and an inner cylinder 6 are hermetically connected and fixed to each other.
In the embodiment of the scheme, the sealing connection mainly ensures the tightness of the inert gas space.
A fluid discharge valve with a plunger anti-corrosion device is characterized in that a sealing cavity is arranged between an inner cylinder 6 and an upper sealing gasket 3 and a lower sealing gasket 4, inert gas is filled in the sealing cavity, and an inert gas nozzle is arranged on one side of a gas inlet 8.
In the embodiment of the present solution, the inert gas nozzle inflates the inside of the cavity of the external gas shutoff assembly through the gas inlet 8, thereby forming a sealed space.
A fluid discharge valve having a plunger corrosion protection device, an inert gas nozzle connected to a flow meter.
In the embodiment of the present embodiment, when the flow rate of the inert gas changes when the flow rate of the gas inlet 8 is changed, the air tightness failure due to the abrasion of the upper gasket 3 or the lower gasket 4 can be found early.
A fluid discharge valve with a plunger corrosion protection device, wherein a plunger 1 is composed of two sections of cylinders with different diameters, and the diameter of the lower side of the plunger 1 is 75% of the diameter of the upper side.
In the embodiment of the present embodiment, the plunger 1 has a structure in which the upper diameter is large and the lower diameter is small, and the diameter of the lower plunger 1 is preferably less than 80% of the diameter of the upper plunger. By reducing the diameter of the lower plunger 1, the gap between the external gas blocking component and the plunger 1 is enlarged and the inert gas input is increased when the valve is in the closed state without changing the size of the valve body.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. A fluid evacuation valve having a plunger corrosion protection device comprising a valve body, further comprising:
the outside air blocking assembly comprises a plunger (1) inserted into the valve body, a fluid outlet (2) is formed in one side of the valve body, a handle is fixedly arranged at the top of the plunger (1), an outer cylinder (5) is arranged on the inner side of the valve body, an inner cylinder (6) is arranged on the inner side of the outer cylinder (5), an upper sealing gasket (3) is arranged on one side of the inner cylinder (6), a lower sealing gasket (4) is arranged on the other side of the inner cylinder (6), a gas outlet (7) is formed in one side of the outer cylinder (5), a gas inlet (8) is formed in the other side of the outer cylinder (5), and inert gas is filled in the position of the gas inlet (8).
2. A fluid discharge valve having a plunger corrosion protection device as set forth in claim 1 wherein: the outer cylinder (5) and the inner cylinder (6) are mutually connected and fixed in a sealing way.
3. A fluid discharge valve having a plunger corrosion protection device as set forth in claim 1 wherein: a sealing cavity is formed between the inner cylinder (6) and the upper sealing gasket (3) and between the inner cylinder and the lower sealing gasket (4), inert gas is filled in the sealing cavity, and an inert gas nozzle is arranged on one side of the gas inlet (8).
4. A fluid discharge valve having a plunger corrosion protection device as set forth in claim 3 wherein: the inert gas nozzle is connected with the flowmeter.
5. A fluid discharge valve having a plunger corrosion protection device as set forth in claim 1 wherein: the plunger (1) consists of two sections of cylinders with different diameters, and the diameter of the lower side of the plunger (1) is 75% of the diameter of the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485428.0U CN220151904U (en) | 2023-06-12 | 2023-06-12 | Fluid discharge valve with plunger anticorrosion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485428.0U CN220151904U (en) | 2023-06-12 | 2023-06-12 | Fluid discharge valve with plunger anticorrosion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151904U true CN220151904U (en) | 2023-12-08 |
Family
ID=89018094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485428.0U Active CN220151904U (en) | 2023-06-12 | 2023-06-12 | Fluid discharge valve with plunger anticorrosion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151904U (en) |
-
2023
- 2023-06-12 CN CN202321485428.0U patent/CN220151904U/en active Active
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