CN110848556A - Bimetallic strip trap - Google Patents
Bimetallic strip trap Download PDFInfo
- Publication number
- CN110848556A CN110848556A CN201911195442.5A CN201911195442A CN110848556A CN 110848556 A CN110848556 A CN 110848556A CN 201911195442 A CN201911195442 A CN 201911195442A CN 110848556 A CN110848556 A CN 110848556A
- Authority
- CN
- China
- Prior art keywords
- valve
- mounting groove
- slider
- hole
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/02—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled thermally
- F16T1/08—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled thermally by bimetallic strips or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses a bimetallic strip drain valve, which comprises a valve body, a valve cover and a valve core, wherein the upper end of the valve body is provided with a mounting groove, and a valve seat is formed at the bottom of the mounting groove in the valve body; the left end of the valve body is provided with an inlet, the right end of the valve body is provided with an outlet, a valve hole for communicating the mounting groove and the outlet is formed in the middle of the valve seat in the valve body, and a communication hole for communicating the inlet and the mounting groove is formed in the valve body; the valve cover is fixedly arranged at an opening at the upper end of the mounting groove, the valve core is positioned in the mounting groove and used for controlling the on-off of the valve hole, an adjusting rod with the upper end extending into the valve cover is arranged in the valve cover, and a plurality of bimetallic strips are arranged between the upper end of the valve core and the lower end of the adjusting rod; a protection assembly matched with the valve core is arranged in the mounting groove, and the protection assembly is used for protecting the sealing surface of the valve core and scraping impurities on the sealing surface of the valve seat; the bimetallic strip drain valve not only has simple structure, but also can protect the sealing surface of the valve core.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a bimetallic strip drain valve.
Background
The existing hot static bimetallic strip steam trap adopts a circular-plate-shaped bimetallic strip and a positive sealing structure mode, and the working principle is as follows: when hot steam enters the mounting groove, the circular plate-shaped bimetallic strip expands and deforms under heat to generate hot thrust, and the elastic force of the spring is overcome to drive the valve core to close the valve seat hole; when the temperature of the condensed water in the mounting groove is reduced, the bimetallic strip contracts and returns, the elastic force of the spring pushes the valve core away, the valve seat hole is opened, and the next circulation action starts. The phenomenon that the drain valve is continuously discharged and is not closed, the drain valve is continuously drained with water and steam is usually generated when the traditional drain valve works, foreign matters or impurities are clamped between the valve core and the valve seat or between the valve core and the valve seat by a guide surface, the normal use of the drain valve can be influenced in a short time by the phenomenon, and the damage is generated in the sealing line part of the drain valve for a long time to influence the service life.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a bimetallic strip drain valve which is simple in structure and can protect the sealing surface of a valve core.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a bimetallic strip trap comprises a valve body, a valve cover and a valve core, wherein the upper end of the valve body is provided with a mounting groove, and a valve seat is formed at the bottom of the mounting groove in the valve body; the left end of the valve body is provided with an inlet, the right end of the valve body is provided with an outlet, a valve hole for communicating the mounting groove and the outlet is formed in the middle of the valve seat in the valve body, and a communication hole for communicating the inlet and the mounting groove is formed in the valve body; the valve cover is fixedly arranged at an opening at the upper end of the mounting groove, the valve core is positioned in the mounting groove and used for controlling the on-off of the valve hole, an adjusting rod with the upper end extending into the valve cover is arranged in the valve cover, and a plurality of bimetallic strips are arranged between the upper end of the valve core and the lower end of the adjusting rod; and a protection assembly matched with the valve core is arranged in the mounting groove and used for protecting the sealing surface of the valve core and scraping impurities on the sealing surface of the valve seat.
In a further technical scheme, the protection assembly comprises a left sliding block, a right sliding block, a left spring and a right spring, the left sliding block is connected in the installation groove in a sliding mode and is located on the left side of the valve core, and the right sliding block is connected in the installation groove in a sliding mode and is located on the right side of the valve core; the left spring is positioned between the left end of the mounting groove and the left end of the left sliding block and used for forcing the left sliding block to move rightwards, and the right spring is positioned between the right end of the mounting groove and the right end of the right sliding block and used for forcing the right sliding block to move leftwards; the lower end of the valve core is provided with an inverted conical surface, the right end of the left sliding block is provided with an inwards-concave left semi-conical surface, and the left end of the right sliding block is provided with an inwards-concave right semi-conical surface; the right-hand member of left side slider is equipped with half hole on a left side in the axial of valve opening in the below of half conical surface on a left side, the left end of right side slider is equipped with half hole on a right side in the below of half conical surface on a right side along the axial of valve opening, be equipped with the left through-hole with half hole intercommunication on a left side along its slip direction in the slider on a left side, be equipped with the right through-hole with half hole intercommunication on a right side along its slip direction in the slider on a right side.
Through the technical scheme, when low-temperature condensed water enters the mounting groove, the bimetallic strip does not generate hot thrust, the left sliding block moves rightwards under the action of the left spring, the right sliding block moves leftwards under the action of the right spring, so that the valve core moves upwards under the action of the left semi-conical surface and the right semi-conical surface until the inverted conical surface of the valve core is positioned in the protection conical surface formed by the left semi-conical surface and the right semi-conical surface, the inverted conical surface of the valve core is not contacted with external condensed water, in the process that the left sliding block and the right sliding block move oppositely, impurities remained on the sealing surface and the sealing line of the valve seat can be scraped off and removed by the condensed water, at the moment, the condensed water enters the mounting groove from the inlet and the communicating hole under the action of internal and external pressure difference, then flows out of the seat hole and the outlet through the left through hole and the left semi-hole as well as; when high-temperature condensed water or steam enters the valve cavity, the bimetallic strip starts to expand and deform under the heating condition to generate hot thrust, the valve core is pushed to move downwards, the left sliding block is pushed to move leftwards to compress the left spring and the right sliding block is pushed to move rightwards to compress the right spring through the action of the inverted conical surface of the valve core and the left half conical surface, and the valve hole is closed downwards until the valve core stops draining.
In a further technical scheme, the valve cover is provided with a communicating groove on the end surface facing the mounting groove along the movement direction of the left slider.
In a further technical scheme, the lower end of the adjusting rod is provided with a slide guide hole upwards along the axial direction of the adjusting rod, the upper end of the valve core is provided with a slide guide rod extending into the slide guide hole, and the bimetallic strips are sleeved on the slide guide rod.
In a further technical scheme, a locking nut is arranged on the adjusting rod, and a nut sleeved at the upper end of the adjusting rod is in threaded connection with the upper end of the valve cover.
In a further technical scheme, a groove with a regular hexagonal cross section is formed in the upper end of the adjusting rod.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
through the cooperation of left slider, right slider and case, can protect the sealed face of case to can strike off the impurity on the sealed face of disk seat and the sealing line, improve life.
Drawings
FIG. 1 is a left side view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 4 is a perspective view of a valve body according to the present invention;
FIG. 5 is a perspective view of the valve cover of the present invention;
FIGS. 6-7 are structural views of the left slider of the present invention;
FIGS. 8-9 are views showing the construction of the right slider in the present invention;
FIG. 10 is a structural view of the valve cartridge of the present invention;
FIG. 11 is an assembly structure view of the left slider, the right slider and the valve body in the present invention.
Detailed Description
Referring to fig. 1-11, a bimetallic strip trap includes a valve body 1, a valve cover 6, and a valve core 4, wherein an installation groove 101 is formed at the upper end of the valve body 1, and a valve seat 102 is formed at the bottom of the installation groove 101 in the valve body 1; an inlet 1a is formed in the left end of the valve body 1, an outlet 1b is formed in the right end of the valve body 1, a valve hole 1c for communicating the installation groove 101 with the outlet 1b is formed in the middle of the valve seat 102 in the valve body 1, and a communication hole 103 for communicating the inlet 1a with the installation groove 101 is formed in the valve body 1; the valve cover 6 is fixedly arranged at an opening at the upper end of the mounting groove 101, the valve core 4 is positioned in the mounting groove 101 and used for controlling the on-off of the valve hole 1c, an adjusting rod 7 with the upper end extending into the valve cover 6 is connected with the valve cover 6 in an internal thread mode, and a plurality of bimetallic strips 5 are arranged between the upper end of the valve core 4 and the lower end of the adjusting rod 7; the lower end of the adjusting rod 7 is provided with a slide guide hole 71 along the axial direction, the upper end of the valve core 4 is provided with a slide guide rod 41 extending into the slide guide hole 71, and the bimetallic strips 5 are sleeved on the slide guide rod 41. A protection component matched with the valve core 4 is arranged in the mounting groove 101, and the protection component is used for protecting the sealing surface of the valve core 4 and scraping impurities on the sealing surface of the valve seat 102.
The protection assembly comprises a left slide block 3a, a right slide block 3b, a left spring 2a and a right spring 2b, the left slide block 3a is connected in the installation groove 101 in a sliding mode and is located on the left side of the valve core 4, and the right slide block 3b is connected in the installation groove 101 in a sliding mode and is located on the right side of the valve core 4; the left spring 2a is positioned between the left end of the mounting groove 101 and the left end of the left sliding block 3a and used for forcing the left sliding block 3a to move rightwards, and the right spring 2b is positioned between the right end of the mounting groove 101 and the right end of the right sliding block 3b and used for forcing the right sliding block 3b to move leftwards; the lower end of the valve core 4 is provided with an inverted conical surface 4a, the right end of the left slider 3a is provided with an inwards concave left semi-conical surface 3a1, and the left end of the right slider 3b is provided with an inwards concave right semi-conical surface 3b 1; the right end of the left slider 3a is provided with a left half hole 3a2 in the axial direction of the valve hole 1c below the left half conical surface 3a1, the left end of the right slider 3b is provided with a right half hole 3b2 in the axial direction of the valve hole 1c below the right half conical surface 3b1, a left through hole 3a3 communicated with the left half hole 3a2 is arranged in the left slider 3a along the sliding direction of the left slider, and a right through hole 3b3 communicated with the right half hole 3b2 is arranged in the right slider 3b along the sliding direction of the right slider.
The valve cover 6 is provided with a communicating groove 61 on the end surface facing the mounting groove 101 in the moving direction of the left slider 3a, and the communicating groove 61 is provided to communicate the left side of the left slider 3a with the right side of the right slider 3 b. The adjusting rod 7 is provided with a locking nut 72, and the upper end of the valve cover 6 is in threaded connection with a nut 8 sleeved at the upper end of the adjusting rod 7. The upper end of the adjusting rod 7 is provided with a groove 75 with a regular hexagonal cross section, and the adjusting rod 7 can be conveniently rotated by an inner hexagonal wrench.
When low-temperature condensed water enters the mounting groove 101, the bimetallic strip 5 does not generate thermal thrust, the left slider 3a moves rightwards under the action of the left spring 2a, the right slider 3b moves leftwards under the action of the right spring 2b, so that the valve core 4 moves upwards under the action of the left half conical surface 3a1 and the right half conical surface 3b1 until the inverted conical surface 4a of the valve core 4 is positioned in the protection conical surface formed by the left half conical surface 3a1 and the right half conical surface 3b1, so that the inverted conical surface 4a of the valve core 4 is not contacted with external condensed water, and in the process that the left slider 3a and the right slider 3b move towards each other, impurities remained at the sealing surface of the valve seat 102 and the sealing line 1d can be scraped off and washed away by the condensed water, and at the moment, the condensed water enters the mounting groove 101 from the inlet 1a and the communication hole 103 under the action of internal and external pressure difference, passes through the left through hole 3a3, the left half hole 3a2, the right half is empty and flows out of the seat hole and the outlet 1b, and the drain valve drains the condensed water.
When high-temperature condensed water or steam enters the valve cavity, the bimetallic strip 5 starts to expand and deform under the heating condition to generate hot thrust, the valve core 4 is pushed to move downwards, the left sliding block 3a is pushed to move leftwards to compress the left spring 2a and the right sliding block 3b is pushed to move rightwards to compress the right spring 2b through the action of the inverted conical surface 4a of the valve core 4 and the left half conical surface 3a1 and the action of the right half conical surface 3b1, and drainage is stopped until the inverted conical surface 4a of the valve core 4 is tightly pressed on the valve hole 1 c.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A bimetallic strip trap is characterized by comprising a valve body, a valve cover and a valve core, wherein the upper end of the valve body is provided with a mounting groove, and a valve seat is formed at the bottom of the mounting groove in the valve body; the left end of the valve body is provided with an inlet, the right end of the valve body is provided with an outlet, a valve hole for communicating the mounting groove and the outlet is formed in the middle of the valve seat in the valve body, and a communication hole for communicating the inlet and the mounting groove is formed in the valve body; the valve cover is fixedly arranged at an opening at the upper end of the mounting groove, the valve core is positioned in the mounting groove and used for controlling the on-off of the valve hole, an adjusting rod with the upper end extending into the valve cover is arranged in the valve cover, and a plurality of bimetallic strips are arranged between the upper end of the valve core and the lower end of the adjusting rod; and a protection assembly matched with the valve core is arranged in the mounting groove and used for protecting the sealing surface of the valve core and scraping impurities on the sealing surface of the valve seat.
2. The bimetallic trap of claim 1, wherein the protection assembly includes a left slider, a right slider, a left spring, and a right spring, the left slider being slidably coupled within the mounting slot and positioned on the left side of the spool, the right slider being slidably coupled within the mounting slot and positioned on the right side of the spool; the left spring is positioned between the left end of the mounting groove and the left end of the left sliding block and used for forcing the left sliding block to move rightwards, and the right spring is positioned between the right end of the mounting groove and the right end of the right sliding block and used for forcing the right sliding block to move leftwards; the lower end of the valve core is provided with an inverted conical surface, the right end of the left sliding block is provided with an inwards-concave left semi-conical surface, and the left end of the right sliding block is provided with an inwards-concave right semi-conical surface; the right-hand member of left side slider is equipped with half hole on a left side in the axial of valve opening in the below of half conical surface on a left side, the left end of right side slider is equipped with half hole on a right side in the below of half conical surface on a right side along the axial of valve opening, be equipped with the left through-hole with half hole intercommunication on a left side along its slip direction in the slider on a left side, be equipped with the right through-hole with half hole intercommunication on a right side along its slip direction in the slider on a right side.
3. The bimetallic trap as in claim 2, wherein the valve cover is provided with a communication groove on an end surface facing the mounting groove in the direction of movement of the left slider.
4. The bimetallic trap as in claim 1 wherein the lower end of the regulating stem is provided with a slide guide bore extending axially upwardly therefrom, the upper end of the spool is provided with a slide guide rod extending into the slide guide bore, and the plurality of bimetallic strips are sleeved on the slide guide rod.
5. The bimetallic trap as in claim 1, wherein the adjusting lever is provided with a lock nut, and the upper end of the valve cover is threadedly connected with a nut sleeved on the upper end of the adjusting lever.
6. The bimetallic trap as defined in claim 1, wherein the upper end of said adjustment stem is provided with a recess having a regular hexagonal cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195442.5A CN110848556B (en) | 2019-11-28 | 2019-11-28 | Bimetallic strip drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195442.5A CN110848556B (en) | 2019-11-28 | 2019-11-28 | Bimetallic strip drain valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110848556A true CN110848556A (en) | 2020-02-28 |
| CN110848556B CN110848556B (en) | 2023-06-30 |
Family
ID=69607103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911195442.5A Active CN110848556B (en) | 2019-11-28 | 2019-11-28 | Bimetallic strip drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110848556B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197161A (en) * | 2020-10-10 | 2021-01-08 | 济南高瓴机械科技有限公司 | Multifunctional steam trap |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1067289A (en) * | 1964-05-09 | 1967-05-03 | Herbert Ruediger Gerdts | Improvements in temperature-controlled valves for regulating fluid flow |
| KR860000505A (en) * | 1984-06-26 | 1986-01-29 | 미야와끼 다다스께 | Bimetallic Steam Trap |
| JPH0727291A (en) * | 1993-07-15 | 1995-01-27 | Tlv Co Ltd | Heat-response type steam trap |
| CN201382160Y (en) * | 2009-04-17 | 2010-01-13 | 西安轨道交通装备有限责任公司 | Lower opening central oil discharge device |
| CN201810784U (en) * | 2010-09-21 | 2011-04-27 | 赵旭阳 | Stop valve |
| CN201810797U (en) * | 2010-05-06 | 2011-04-27 | 上海开维喜阀门集团有限公司 | Disc valve with two symmetrical discs |
| CN103032670A (en) * | 2012-12-20 | 2013-04-10 | 洪新强 | Back-sealing external adjusting type bimetal steam trap valve |
| CN204693019U (en) * | 2015-05-29 | 2015-10-07 | 常州埃姆基冷冻设备有限公司 | New double metal sheet Automatic steam trap Trap |
| CN108331937A (en) * | 2018-04-12 | 2018-07-27 | 浙江锐步流体控制设备有限公司 | A kind of dress pot ball valve |
| CN209294455U (en) * | 2018-12-20 | 2019-08-23 | 无锡凯尔克仪表阀门有限公司 | A kind of high frequency ball valve |
-
2019
- 2019-11-28 CN CN201911195442.5A patent/CN110848556B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1067289A (en) * | 1964-05-09 | 1967-05-03 | Herbert Ruediger Gerdts | Improvements in temperature-controlled valves for regulating fluid flow |
| KR860000505A (en) * | 1984-06-26 | 1986-01-29 | 미야와끼 다다스께 | Bimetallic Steam Trap |
| JPH0727291A (en) * | 1993-07-15 | 1995-01-27 | Tlv Co Ltd | Heat-response type steam trap |
| CN201382160Y (en) * | 2009-04-17 | 2010-01-13 | 西安轨道交通装备有限责任公司 | Lower opening central oil discharge device |
| CN201810797U (en) * | 2010-05-06 | 2011-04-27 | 上海开维喜阀门集团有限公司 | Disc valve with two symmetrical discs |
| CN201810784U (en) * | 2010-09-21 | 2011-04-27 | 赵旭阳 | Stop valve |
| CN103032670A (en) * | 2012-12-20 | 2013-04-10 | 洪新强 | Back-sealing external adjusting type bimetal steam trap valve |
| CN204693019U (en) * | 2015-05-29 | 2015-10-07 | 常州埃姆基冷冻设备有限公司 | New double metal sheet Automatic steam trap Trap |
| CN108331937A (en) * | 2018-04-12 | 2018-07-27 | 浙江锐步流体控制设备有限公司 | A kind of dress pot ball valve |
| CN209294455U (en) * | 2018-12-20 | 2019-08-23 | 无锡凯尔克仪表阀门有限公司 | A kind of high frequency ball valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197161A (en) * | 2020-10-10 | 2021-01-08 | 济南高瓴机械科技有限公司 | Multifunctional steam trap |
| CN112197161B (en) * | 2020-10-10 | 2021-07-27 | 立信阀门集团有限公司 | Multifunctional steam trap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110848556B (en) | 2023-06-30 |
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Effective date of registration: 20230602 Address after: 102600 No. 3, Luhai Road, Panggezhuang Town, Daxing District, Beijing Applicant after: BEIJING VALVE GENERAL FACTORY Co.,Ltd. Address before: 8 / F, block B, Yonggang modern Ming building, 188 Jinghua Road, high tech Zone, Ningbo, Zhejiang 315000 Applicant before: Shao Yuqiang |
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