CN222823739U - A steam trap with double sealing surface valve seat - Google Patents
A steam trap with double sealing surface valve seat Download PDFInfo
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- CN222823739U CN222823739U CN202421033231.8U CN202421033231U CN222823739U CN 222823739 U CN222823739 U CN 222823739U CN 202421033231 U CN202421033231 U CN 202421033231U CN 222823739 U CN222823739 U CN 222823739U
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Abstract
本实用新型涉及疏水阀技术领域，具体是一种具有双密封面阀座的疏水阀，包括阀体和阀座，所述阀座可拆卸地密封安装在所述阀体内，所述阀座为上下对称结构且其内的上下侧分别具有用于与阀瓣配合使用的密封面。本实用新型通过阀座可拆卸地安装在阀体内，阀座的上下侧分别具有与阀瓣配合使用密封面的设计，能够快速检修，拆卸阀座，切换阀座上不同密封面来提高阀座的使用率，以及提高阀门的使用寿命。
The utility model relates to the technical field of steam traps, specifically a steam trap with a double sealing surface valve seat, comprising a valve body and a valve seat, wherein the valve seat is detachably and sealingly mounted in the valve body, and the valve seat is a vertically symmetrical structure, and the upper and lower sides thereof respectively have sealing surfaces for use with a valve disc. The utility model is designed such that the valve seat is detachably mounted in the valve body, and the upper and lower sides of the valve seat respectively have sealing surfaces for use with the valve disc, so that the utility model can quickly inspect and repair, disassemble the valve seat, and switch different sealing surfaces on the valve seat to improve the utilization rate of the valve seat and the service life of the valve.
Description
Technical Field
The utility model relates to the technical field of drain valves, in particular to a drain valve with a double-sealing-surface valve seat.
Background
The drain valve is a safety control part in a boiler steam conveying system, and the function of the drain valve is very important, so that the requirements on the sealing performance, the service life and the maintenance convenience of the valve are very high, in order to improve the service life of the valve in the prior art, the upper side of the valve seat is provided with a sealing surface matched with the valve clack so as to reduce certain abrasion of the valve seat, but the sealing surface of the valve seat is worn seriously due to the long-term high-frequency opening and closing of the valve, thereby influencing the normal use of the valve and reducing the service life of the valve.
Therefore, there is a need to design a drain valve structure that increases the service life of the valve.
Disclosure of utility model
The utility model aims to provide a drain valve with a double-sealing-surface valve seat, which is detachably arranged in a valve body through the valve seat, wherein the upper side and the lower side of the valve seat are respectively provided with a sealing surface matched with a valve clack for use, so that the valve seat can be quickly overhauled, the valve seat is detached, different sealing surfaces on the valve seat are switched to improve the utilization rate of the valve seat, and the service life of the valve is prolonged.
In order to solve the technical problems, the utility model provides a drain valve with a double-sealing-surface valve seat, which comprises a valve body and a valve seat, wherein the valve seat is detachably and hermetically arranged in the valve body, the valve seat is of an up-down symmetrical structure, and the upper side and the lower side in the valve seat are respectively provided with a sealing surface for being matched with a valve clack.
Further, a sealing element is arranged between the valve seat and the valve body.
Further, a mounting seat is further arranged between the valve seat and the valve body, the mounting seat is located below the valve seat, an annular notch I is formed in the outer side of the mounting seat, a sealing groove is formed by the annular notch I and the inner wall of the valve body, the sealing element is arranged in the sealing groove, and the valve seat abuts against the sealing element.
Further, the valve seat is provided with an inner ring and an outer ring, an upper bulge protruding out of the inner ring is arranged on the upper side of the outer ring, an annular gap II is formed in the bottom of the flow equalizing cover, and the upper bulge stretches into the annular gap II.
Further, the upper protrusion is in clearance fit with the annular gap II.
Further, the lower side of the outer ring is provided with a lower bulge protruding out of the inner ring, and the lower bulge stretches into the sealing groove to press the sealing element.
Further, a flow equalizing cover is arranged above the valve seat, and the flow equalizing cover is pressed on the upper side of the valve seat, so that the sealing piece is respectively abutted against the valve body and the valve seat.
Further, the valve clack is located the inboard of cover that flow equalizes and wears to be equipped with the valve rod on it, the valve rod with top-down is equipped with the filler in proper order between the inner wall of valve body with the cover that flow equalizes, the top of filler be equipped with gland, below with the cover that flow equalizes offsets, the gland is installed on the valve body and its lower extreme stretches into the valve body is pressed the filler.
The beneficial effects of the utility model are as follows:
1. The valve seat is detachably arranged in the valve body, the upper side and the lower side of the valve seat are respectively provided with the sealing surfaces matched with the valve clack, the valve seat can be rapidly overhauled and detached, and the use ratio of the valve seat is improved and the service life of the valve is prolonged by switching different sealing surfaces on the valve seat.
2. According to the utility model, through the design of the sealing element, the sealing performance of the valve is improved, and the service life of the valve is further prolonged.
3. According to the utility model, the annular notch I is arranged on the outer side of the mounting seat, the annular notch I and the inner wall of the valve body jointly form the sealing groove, the sealing element is arranged in the sealing groove, and the valve seat is propped against the sealing element, so that the mounting of the valve internal part is tighter, and the sealing effect of the valve is improved.
4. According to the utility model, the upper bulge of the valve seat stretches into the annular gap II to be in clearance fit with the annular gap II, the lower bulge stretches into the sealing groove to compress the sealing element and is in radial clearance fit with the sealing groove, so that the compression force of the gland sequentially passes through the packing, the flow equalizing cover and the valve seat to transfer force to act on the sealing ring, the sealing ring expands under extrusion to realize sealing, and when the valve is closed, the valve clack further compresses the valve seat, so that the extrusion force applied to the sealing ring is increased, and the greater the extrusion force is, the better the sealing effect is.
5. The utility model is fast in positioning and convenient in installation by the cooperation of the upper bulge and the annular notch II and the cooperation of the lower bulge and the sealing groove.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a drain valve having a double-seal face valve seat according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of area A of FIG. 1;
In the figure, the valve body is 1-, the valve seat is 2-, the sealing element is 3-, the flow equalizing cover is 4-, the mounting seat is 5-, the inner ring is 21-, the outer ring is 22-, the sealing surface is 23-, the upper bulge is 221-the lower bulge is 222-the valve rod is 7-the valve rod is 8-the packing, the gland is 9-and the bracket is 10-the valve rod is arranged on the valve rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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 a specific embodiment of the present utility model, as shown in fig. 1-2, a drain valve with a double-sealing-surface valve seat comprises a valve body 1 and a valve seat 2, wherein the valve seat 2 is detachably and hermetically installed in the valve body 1, the valve seat 2 is of an up-down symmetrical structure, the upper side and the lower side in the valve seat are respectively provided with a sealing surface 23 used for being matched with a valve clack 6, when the sealing surface on the upper side is used for a long time, after the sealing surface is eroded and worn, the valve seat 2 is disassembled, the sealing surface on the lower side of the valve seat 2 in a standby state is installed in the valve body 1, and the sealing surface 23 on the upper side and the lower side are matched with corresponding sealing surfaces on the valve clack 6 through switching for use, so that the utilization rate of the valve seat and the service life of the valve are improved.
Specifically, a sealing element 3 is arranged between a valve seat 2 and a valve body 1, the sealing element 3 is a sealing ring in the embodiment, as shown in fig. 1, a flow equalizing cover 4 is arranged above the valve seat 2, the flow equalizing cover 4 is pressed on the upper side of the valve seat 2, the sealing element is respectively propped against the valve body 1 and the valve seat 2, a valve clack 6 is positioned on the inner side of the flow equalizing cover 4 and is provided with a valve rod 7 in a penetrating manner, a packing 8 and the flow equalizing cover 4 are sequentially arranged between the valve rod 7 and the inner wall of the valve body 1 from top to bottom, a gland 9 is arranged above the packing 8 and is propped against the flow equalizing cover 4, the gland 9 is arranged on the valve body 1, the lower end of the gland 9 stretches into the valve body 1 to press the packing 8, a bracket 10 is arranged above the valve body 1, the bracket 10 is fixed with the gland 9, and the bracket 10 is fixed with the valve body 1 in the embodiment by welding after being in threaded connection, so that the tightness of the valve during valve installation is improved.
In addition, as shown in fig. 1, in this embodiment, a mounting seat 5 is further provided between the valve seat 2 and the valve body 1, the mounting seat 5 is located below the valve seat 2, and an annular gap I is provided on the outer side of the mounting seat, the annular gap I and the inner wall of the valve body 1 together form a sealing groove, the sealing element 3 is installed in the sealing groove, and the valve seat 2 abuts against the sealing element 3.
As shown in fig. 2, in this embodiment, the valve seat 2 has an inner ring 21 and an outer ring 22, an upper protrusion 221 protruding from the inner ring 21 is provided on the upper side of the outer ring 22, an annular gap two is provided on the outer side of the bottom of the flow equalizing cover 4, and the upper protrusion 221 extends into the annular gap two and is in clearance fit with the annular gap two, so as to play a certain role in positioning the flow equalizing cover;
The lower side of the outer ring 22 is provided with a lower bulge 222 protruding out of the inner ring 21, the lower bulge 222 stretches into the sealing groove to compress the sealing element 3 and is in radial clearance fit with the sealing groove, and the sealing effect of the valve can be greatly improved through the design.
The specific installation process of the embodiment is as follows:
Firstly, a sealing ring is placed in an annular gap I of a mounting seat 5, then the mounting seat 5 is placed in a corresponding mounting groove in a valve body 1, the outer wall of the sealing ring is attached to the inner wall of the valve body 1, then a valve seat 2 is placed on the mounting seat 5, a lower bulge 222 stretches into the sealing groove and is tightly pressed on the sealing ring, then a flow equalizing cover 4 is placed on the valve seat 2, then a valve clack 6 is connected with a valve rod 7 and then penetrates through the interior of the flow equalizing cover 4, the sealing surface of the valve clack is matched with a sealing surface 23 on the upper side of the valve seat 2, then a filler 8 is filled into the valve body 1, the filler 8 is pressed on the flow equalizing cover 4, then a gland 9 is fixed on the valve body 1 through bolts, the lower end of the gland 9 stretches into the valve body 1 and is tightly pressed on the filler 8, and therefore the installation of the valve seat 2 is finally completed, and when the valve is closed, the sealing surface of the valve clack 6 is matched with the sealing surface on the upper side of the valve seat 2. When the upper sealing surface of the valve seat 2 is worn, the gland 9, the packing 8, the flow equalizing cover 4 and the valve seat 2 are sequentially taken out, the lower sealing surface of the valve seat 2 is upwards and is arranged on the mounting seat 5, the original upper bulge 221 of the valve seat 2 extends into the sealing groove and is pressed on the sealing ring, and then the flow equalizing cover 4, the packing 8 and the gland 9 are sequentially arranged to complete the mounting of the valve seat 2.
The above disclosure is only a preferred embodiment of the present utility model, and it is needless to say that the scope of the utility model is not limited thereto, and therefore, the equivalent changes according to the claims of the present utility model still fall within the scope of the present utility model.
Claims (8)
1. The drain valve with the double sealing surface valve seat is characterized by comprising a valve body (1) and a valve seat (2), wherein the valve seat (2) is detachably and hermetically arranged in the valve body (1), the valve seat (2) is of an up-down symmetrical structure, and the upper side and the lower side in the valve seat are respectively provided with a sealing surface (23) used for being matched with a valve clack (6).
2. A drain valve with a double-sealing-surface valve seat according to claim 1, characterized in that a sealing element (3) is arranged between the valve seat (2) and the valve body (1).
3. A drain valve with double sealing surface valve seat according to claim 2, characterized in that a mounting seat (5) is further arranged between the valve seat (2) and the valve body (1), the mounting seat (5) is arranged below the valve seat (2) and is provided with an annular notch I on the outer side, the annular notch I and the inner wall of the valve body (1) jointly form a sealing groove, the sealing element (3) is arranged in the sealing groove, and the valve seat (2) is propped against the sealing element (3).
4. A drain valve with double sealing surface valve seat according to claim 3, characterized in that the valve seat (2) is provided with an inner ring (21) and an outer ring (22), the upper side of the outer ring (22) is provided with an upper bulge (221) protruding out of the inner ring (21), the upper part of the valve seat (2) is provided with a flow equalizing cover (4), the bottom of the flow equalizing cover (4) is provided with an annular gap II, and the upper bulge (221) extends into the annular gap II.
5. A trap having a double seal surface valve seat according to claim 4 wherein said upper projection (221) is in clearance fit with said annular recess.
6. A trap with a double seal surface valve seat according to claim 4, characterized in that the underside of the outer ring (22) has a lower projection (222) protruding from the inner ring (21), which lower projection (222) protrudes into the sealing groove for compressing the seal (3).
7. A drain valve with double sealing surface valve seat according to claim 4, characterized in that the flow equalizing cover (4) is pressed against the upper side of the valve seat (2) so that the sealing element (3) is pressed against the valve body (1) and the valve seat (2), respectively.
8. The drain valve with the double sealing surface valve seat according to claim 7, wherein the valve clack (6) is located on the inner side of the flow equalizing cover (4) and is provided with a valve rod (7) in a penetrating manner, a packing (8) and the flow equalizing cover (4) are sequentially arranged between the valve rod (7) and the inner wall of the valve body (1) from top to bottom, a gland (9) is arranged above the packing (8), the gland (9) abuts against the flow equalizing cover (4), the gland (9) is installed on the valve body (1), and the lower end of the gland extends into the valve body (1) to compress the packing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421033231.8U CN222823739U (en) | 2024-05-13 | 2024-05-13 | A steam trap with double sealing surface valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421033231.8U CN222823739U (en) | 2024-05-13 | 2024-05-13 | A steam trap with double sealing surface valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222823739U true CN222823739U (en) | 2025-05-02 |
Family
ID=95497488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421033231.8U Active CN222823739U (en) | 2024-05-13 | 2024-05-13 | A steam trap with double sealing surface valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222823739U (en) |
-
2024
- 2024-05-13 CN CN202421033231.8U patent/CN222823739U/en active Active
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