CN205640203U - Steam trap valve - Google Patents

Steam trap valve Download PDF

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Publication number
CN205640203U
CN205640203U CN201620478769.9U CN201620478769U CN205640203U CN 205640203 U CN205640203 U CN 205640203U CN 201620478769 U CN201620478769 U CN 201620478769U CN 205640203 U CN205640203 U CN 205640203U
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CN
China
Prior art keywords
valve rod
valve
valve body
spool
memory alloy
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Expired - Fee Related
Application number
CN201620478769.9U
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Chinese (zh)
Inventor
黄勐哲
陈丽安
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Xiamen University of Technology
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Xiamen University of Technology
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Priority to CN201620478769.9U priority Critical patent/CN205640203U/en
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Publication of CN205640203U publication Critical patent/CN205640203U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a steam trap valve, including the valve body, the valve body has an inner chamber, and valve body one side upper portion is equipped with the entry, and valve body opposite side upper portion is equipped with the gas vent, and valve body opposite side lower part is equipped with the outlet, first valve rod is worn to be equipped with by the gas vent, and the one end of first valve rod has first case, and the cover has memory alloy dish gasket and connects first pressure spring on the first valve rod, and first pressure spring one end is pushed up on the valve body, the other end pushes up on first valve rod, and first pressure spring orders about first valve rod makes the case of winning break away from along axial displacement gas vent, memory alloy dish gasket one side top on first valve rod, the opposite side push up on the valve body, memory alloy dish gasket is heated back both sides arch to be ordered about first valve rod anatrepsis messenger and wins the case and fill in the gas vent, still be equipped with second valve rod and second case in the valve body inner chamber, second valve rod and second case combined action open outlet or close the outlet. The utility model discloses the reaction is sensitive, and operational reliability is higher.

Description

A kind of drain valve
Technical field
This utility model relates to drain valve, especially a kind of drain valve.
Background technology
In steam-heating apparatus or jet chimney, steam can be constantly be generated condensed water in running, and in order to ensure the quality of steam, and also to save the energy, this partial condensation water needs to discharge timely system pipeline.Drain valve is in steam pipe system and equipment, can be automatically drained out condensed water, air, and can stop the valve that steam leaks.
Traditional thermostatic drain valve many employings topping up (wax) corrugated tube is as the temperature-sensitive element of core, and this element exists structure and manufacturing process is complex, expensive and sensitivity is on the low side causes the problems such as steam easily leakage, affects the normal use of valve body.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of drain valve, and it is quick on the draw, and operational reliability is higher, and assembling is relatively easy to.
nullFor reaching above-mentioned purpose,The technical solution of the utility model is to provide a kind of drain valve,Including valve body,Valve body has an inner chamber,Valve body one upper lateral part is provided with and supplies water and the entrance of vapour entrance body cavity,Valve body opposite side top is communicated with body cavity and outside air vent,Valve body opposite side bottom is communicated with body cavity and outside discharge outlet,Described air vent is equipped with the first valve rod,One end of first valve rod is with the first spool that can clog described air vent,It is cased with memorial alloy dish pad on first valve rod and connects the first stage clip,First stage clip one end withstands on valve body、The other end withstands on the first valve rod,First stage clip can order about the first valve rod and be axially moveable so that the first spool departs from described air vent,Memorial alloy dish pad side withstands on the first valve rod、Opposite side withstands on valve body,After memorial alloy dish pad is heated, both sides projection can be ordered about the first valve rod and overcome that the first stage clip elastic force is reversely mobile makes the first spool fill in described air vent;Body cavity is also equipped with the second valve rod and the second spool, the second valve rod and the second spool jointly act on and open described discharge outlet or close described discharge outlet.
As improvement, valve body one upper lateral part connects input pipe, and input pipe connects described entrance, and described valve body opposite side bottom connects outlet tube, described valve body opposite side is additionally provided with output channel, and outlet tube connects described air vent and described discharge outlet by output channel simultaneously.Further, described input pipe is connected with valve body, and described outlet tube is connected with valve body.
As improvement, memorial alloy dish pad has two, two memorial alloy dish pads are closely packed together and are all enclosed within the first valve rod, and the side of a memorial alloy dish pad withstands on valve body, and the side of another memorial alloy dish pad withstands on the first valve rod.
As improvement, the middle part of the first valve rod is provided with an annular protrusion, the side of annular protrusion side and a memorial alloy dish pad against, one end of annular protrusion opposite side and the first stage clip against.
As a kind of optimal way, second valve rod has upwardly extended assembling projection second spool that is connected near one end of described discharge outlet, assembling projection is hinged on valve body, one end of one extension spring is connected to the middle part of the second valve rod, the other end is connected close on the valve body bottom body cavity, one end of one memory alloy spring is connected to the second valve rod one end away from described discharge outlet, the other end of memory alloy spring is connected close on the valve body of body cavity middle and upper part, memory alloy spring is by after thermal stretching, one end of extension spring pulls the second valve rod to rotate counterclockwise so that the second spool fills in described discharge outlet, after memory alloy spring contract on cooling, memory alloy spring pulls the second valve rod to overcome the pulling force of described extension spring to rotate clockwise so that the second spool departs from described discharge outlet.
As another kind of optimal way, second valve rod is articulated in body cavity, second spool is contained in described discharge outlet, the centre of the second spool is communicated with body cavity and outside through hole, second valve rod one end leans against on the second spool, second valve rod leans against the one end on the second spool and is provided with at least one breach, described breach stagger described through hole close described discharge outlet, described breach connect described through hole open described discharge outlet;It is cased with torsion spring on second valve rod, one end of torsion spring is connected on valve body, the other end is connected on the second valve rod, one end of one memory alloy spring is connected on the second stem outer circumference face, and the other end of memory alloy spring is connected close on the valve body of body cavity middle and upper part;Memory alloy spring is by after thermal stretching, torsion spring drives the second valve rod circumferentially to rotate so that described breach staggers with described through hole, after memory alloy spring contract on cooling, memory alloy spring pulls the second valve rod to overcome the torsion of described torsion spring to rotate backward so that described breach connects described through hole.
Further preferably leaning against the one end on the second spool at the second valve rod and be provided with two breach, two breach are arranged at the end symmetric of the second valve rod.
As improving further, body cavity is also equipped with the second stage clip, and one end of the second stage clip withstands on valve body, the other end withstands on the second valve rod, and the second stage clip orders about one end of the second valve rod and leans against on the second spool.
As improving further, the outer peripheral face of the second valve rod is provided with a connection bump, and one end of memory alloy spring is connected in described connection bump.
Using memorial alloy dish pad to act on the first valve rod in this utility model makes the first valve rod drive the first spool energy quick closedown air vent, prevents steam leakage.This utility model uses memory alloy spring to act on the second valve rod further so that the second valve rod and the second spool act on jointly opens discharge outlet in time to discharge condensed water;Owing to the double process shape-memory effect of memorial alloy is to recover Austenite phase shape when the temperature increases, martensitic phase shape is recovered when temperature reduces, i.e. the most repeatedly recover austenite, the phenomenon of martensitic phase shape, so that the shape of memorial alloy or length change by gradient of temperature is spontaneous.Therefore memorial alloy dish pad and memory alloy spring are the sensitiveest to the change of temperature, improve sensitivity and the reliability of operation of whole drain valve, and its simple in construction, and assembling is also relatively easy to, and safeguards the most relatively simple.
Accompanying drawing explanation
Fig. 1 is discharge outlet and the Exhaust Open state sectional structure chart of the first embodiment of this utility model;
Fig. 2 is discharge outlet and the exhaust close state sectional structure chart of the first embodiment of this utility model;
Fig. 3 is discharge outlet and the Exhaust Open state sectional structure chart of this utility model the second embodiment;
Fig. 4 is that in Fig. 3, through hole in the middle of the breach on the second valve rod and the second spool is interconnected schematic diagram;
Fig. 5 is discharge outlet and the exhaust close state sectional structure chart of this utility model the second embodiment;
Fig. 6 is that in Fig. 5, through hole in the middle of the breach on the second valve rod and the second spool mutually staggers schematic diagram.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Shown in embodiment one, Fig. 1, Fig. 2, a kind of drain valve, including valve body 1, valve body 1 has an inner chamber 11, valve body 1 one upper lateral part is provided with and supplies water and the entrance 12 of vapour entrance body cavity 11, valve body 1 opposite side top is communicated with body cavity 11 and outside air vent 13, and valve body 1 opposite side bottom is communicated with body cavity 11 and outside discharge outlet 14;Described valve body 1 one upper lateral part connects input pipe 2, input pipe 2 connects described entrance 12, input pipe 2 is connected with valve body 1, described valve body 1 opposite side bottom connects outlet tube 3, outlet tube 3 is also connected with valve body 1, valve body 1 opposite side is additionally provided with output channel 15, and outlet tube 3 connects described air vent 13 and described discharge outlet 14 by output channel 15 simultaneously.
Described air vent 13 is equipped with the first valve rod 4, one end of first valve rod 4 is with the first spool 41 that can clog described air vent 13, two memorial alloy dish pads 5 it are cased with on first valve rod 4, two memorial alloy dish pads 5 are closely packed together, the side of one memorial alloy dish pad 5 withstands on valve body 1, and the side of another memorial alloy dish pad 5 withstands on the first valve rod 4.As preferred structure, in the middle part of the first valve rod 4, be provided with an annular protrusion 42, the side of memorial alloy dish pad side 5 and annular protrusion 42 against;First valve rod 4 is also associated with the first stage clip 6, and this first stage clip 6 one end withstands on valve body 1, and the other end withstands on the opposite side of annular protrusion 42.
Fig. 1 is further illustrated, and the first stage clip 6 can order about the first valve rod 4 and be axially moveable so that the first spool 41 departs from described air vent 13, and now air vent 13 is opened;Fig. 2 is further illustrated, and after two memorial alloy dish pads 5 are heated, both sides projection is ordered about the first valve rod 4 and overcome that the first stage clip 6 elastic force is reversely mobile makes the first spool 41 fill in described air vent 13, and now air vent 13 cuts out.
In order to realize the open and close function of discharge outlet 14, being also equipped with the second valve rod 7 and the second spool 72 in valve body 1 inner chamber 11, the second valve rod 7 and the second spool 72 act on jointly to be opened described discharge outlet 14 or closes described discharge outlet 14.Its concrete preferred structure is: the second valve rod 7 has upwardly extended assembling protruding 71 near one end of described discharge outlet 14, and this assembling projection 71 is hinged on valve body 1, and the second valve rod 7 is connected near one end of described discharge outlet 14 the second spool 72.One end of one extension spring 8 is connected to the middle part of the second valve rod 7, the other end is connected close on the valve body 1 bottom body cavity 11, one end of one memory alloy spring 9 is connected to the second valve rod 7 one end away from described discharge outlet 14, and the other end of memory alloy spring 9 is connected close on the valve body 1 of body cavity 11 middle and upper part.
Fig. 2 is further illustrated, and memory alloy spring 9 is by after thermal stretching, and one end of extension spring 8 pulls the second valve rod 7 to rotate counterclockwise so that the second spool 72 fills in described discharge outlet 14, and now discharge outlet 14 is closed;Fig. 1 is further illustrated, and after memory alloy spring 9 contract on cooling, memory alloy spring 9 pulls the second valve rod 7 to overcome the pulling force of described extension spring 8 to rotate clockwise so that the second spool 72 departs from described discharge outlet 14, and now discharge outlet 14 is opened.
The operation principle of the present embodiment is as follows: as shown in Figure 1, in the case of temperature is relatively low, memorial alloy dish pad 5 and memory alloy spring 9 are in contraction state, now air vent 13 and discharge outlet 14 are opened, then steam, air and condensed water enter body cavity 11 from input pipe 2, steam, air is discharged from air vent 13, condensed water is discharged from discharge outlet 14, two memorial alloy dish pads 5 are heated while discharging air vent 13 by steam, after two memorial alloy dish pads 5 are heated, both sides projection is ordered about the first valve rod 4 and is overcome that the first stage clip 6 elastic force is reversely mobile makes the first spool 41 fill in described air vent 13, close air vent 13, steam will stay the middle and upper part of body cavity 11.nullWhen vapor action memory alloy spring 9,Memory alloy spring 9 is by after thermal stretching,One end of extension spring 8 pulls the second valve rod 7 to rotate counterclockwise so that the second spool 72 fills in described discharge outlet 14,Close discharge outlet 14,Condensed water stops flowing out,Along with temperature declines,Steam in body cavity 11 can partly become condensed water,Input pipe 2 also can input some condensed waters again,In body cavity 11, condensed water liquid level raises,Memory alloy spring 9 will steep is lowered the temperature in condensed water,Then memory alloy spring 9 shrinks,Memory alloy spring 9 just pulls the second valve rod 7 to overcome the pulling force of described extension spring 8 to rotate clockwise so that the second spool 72 departs from described discharge outlet 14,Open discharge outlet 14 again,A part of condensed water is allowed to flow out,Therefore condensed water can be interrupted outflow,Make discharge outlet 14 can discharge condensed water,Water seal effect can be played again and prevent spilling of steam.
Shown in embodiment two, Fig. 3 to Fig. 6, it is unlike first embodiment: be provided with two pin joint seats 16 in body cavity 11, second valve rod 7 is articulated on two pin joint seats 16 of body cavity 11, second spool 72 is contained in described discharge outlet 14, the centre of the second spool 72 is communicated with body cavity 11 and outside through hole 721, through hole 721 alternative drain mouth 14;Second valve rod 7 one end leans against on the second spool 72, and the second valve rod 7 leans against the one end on the second spool 72 and is provided with two breach 73, and two breach 73 are arranged at the end symmetric of the second valve rod 7;Being cased with torsion spring 10 on second valve rod 7, one end of torsion spring 10 is connected on the pin joint seat 16 of valve body 1, the other end is connected on the second valve rod 7.
The outer peripheral face of the second valve rod 7 is provided with a connection bump 74, and one end of a memory alloy spring 9 is connected in the connection bump 74 on the second valve rod 7 outer peripheral face, and the other end is connected close on the valve body 1 of valve body 1 inner chamber 11 middle and upper part.
In order to make the second valve rod 7 can more closely lean against on the second spool 72 near one end of the second spool 72, described body cavity 11 is also equipped with the second stage clip 17, one end of second stage clip 17 withstands on valve body 1, the other end withstands on the second valve rod 7 one end away from the second spool 72, and one end that such second stage clip 17 utilizes elastic force to order about the second valve rod 7 leans against on the second spool 72.
The operation principle of the present embodiment is roughly the same with embodiment one, except for the difference that, memory alloy spring 9 is after vapor action is by thermal stretching, torsion spring 10 drives the second valve rod 7 circumferentially to rotate two described breach 73 are staggered with described through hole 721, as shown in Figure 6, close the through hole 721 of alternative drain mouth 14 so that condensed water can not be discharged;When memory alloy spring 9 is immersed in condensed water after contract on cooling, memory alloy spring 9 pulls the second valve rod 7 to overcome the torsion of described torsion spring 10 to rotate so that described breach 73 connects described through hole 721 in reverse direction, as shown in Figure 4, now condensed water can be discharged from through hole 721, therefore condensed water can be interrupted and flows out from through hole 721, both prevented spilling of steam, condensed water can have been discharged again.
Below being only two preferred embodiments of this utility model, those skilled in the art both falls within the protection domain of this case by the change that claim makees to be equal to.

Claims (10)

  1. null1. a drain valve,Including valve body,Valve body has an inner chamber,Valve body one upper lateral part is provided with and supplies water and the entrance of vapour entrance body cavity,Valve body opposite side top is communicated with body cavity and outside air vent,Valve body opposite side bottom is communicated with body cavity and outside discharge outlet,It is characterized in that: described air vent is equipped with the first valve rod,One end of first valve rod is with the first spool that can clog described air vent,It is cased with memorial alloy dish pad on first valve rod and connects the first stage clip,First stage clip one end withstands on valve body、The other end withstands on the first valve rod,First stage clip can order about the first valve rod and be axially moveable so that the first spool departs from described air vent,Memorial alloy dish pad side withstands on the first valve rod、Opposite side withstands on valve body,After memorial alloy dish pad is heated, both sides projection can be ordered about the first valve rod and overcome that the first stage clip elastic force is reversely mobile makes the first spool fill in described air vent;Body cavity is also equipped with the second valve rod and the second spool, the second valve rod and the second spool jointly act on and open described discharge outlet or close described discharge outlet.
  2. A kind of drain valve the most according to claim 1, it is characterized in that: described valve body one upper lateral part connects input pipe, input pipe connects described entrance, described valve body opposite side bottom connects outlet tube, described valve body opposite side is additionally provided with output channel, and outlet tube connects described air vent and described discharge outlet by output channel simultaneously.
  3. A kind of drain valve the most according to claim 2, it is characterised in that: described input pipe is connected with valve body, and described outlet tube is connected with valve body.
  4. A kind of drain valve the most according to claim 1, it is characterized in that: described memorial alloy dish pad has two, two memorial alloy dish pads are closely packed together and are all enclosed within the first valve rod, the side of one memorial alloy dish pad withstands on valve body, and the side of another memorial alloy dish pad withstands on the first valve rod.
  5. A kind of drain valve the most according to claim 4, it is characterized in that: the middle part of described first valve rod is provided with an annular protrusion, the side of annular protrusion side and a memorial alloy dish pad against, one end of annular protrusion opposite side and the first stage clip against.
  6. null6. according to a kind of drain valve described in any one of claim 1 to 5,It is characterized in that: described second valve rod has upwardly extended assembling projection second spool that is connected near one end of described discharge outlet,Assembling projection is hinged on valve body,One end of one extension spring is connected to the middle part of the second valve rod、The other end is connected close on the valve body bottom body cavity,One end of one memory alloy spring is connected to the second valve rod one end away from described discharge outlet,The other end of memory alloy spring is connected close on the valve body of body cavity middle and upper part,Memory alloy spring is by after thermal stretching,One end of extension spring pulls the second valve rod to rotate counterclockwise so that the second spool fills in described discharge outlet,After memory alloy spring contract on cooling,Memory alloy spring pulls the second valve rod to overcome the pulling force of described extension spring to rotate clockwise so that the second spool departs from described discharge outlet.
  7. 7. according to a kind of drain valve described in any one of claim 1 to 5, it is characterized in that: described second valve rod is articulated in body cavity, second spool is contained in described discharge outlet, the centre of the second spool is communicated with body cavity and outside through hole, second valve rod one end leans against on the second spool, second valve rod leans against the one end on the second spool and is provided with at least one breach, described breach stagger described through hole close described discharge outlet, described breach connect described through hole open described discharge outlet;
    It is cased with torsion spring on second valve rod, one end of torsion spring is connected on valve body, the other end is connected on the second valve rod, one end of one memory alloy spring is connected on the second stem outer circumference face, and the other end of memory alloy spring is connected close on the valve body of body cavity middle and upper part;
    Memory alloy spring is by after thermal stretching, torsion spring drives the second valve rod circumferentially to rotate so that described breach staggers with described through hole, after memory alloy spring contract on cooling, memory alloy spring pulls the second valve rod to overcome the torsion of described torsion spring to rotate backward so that described breach connects described through hole.
  8. A kind of drain valve the most according to claim 7, it is characterised in that: described second valve rod leans against the one end on the second spool and is provided with two breach, and two breach are arranged at the end symmetric of the second valve rod.
  9. A kind of drain valve the most according to claim 7, it is characterised in that: described body cavity is also equipped with the second stage clip, and one end of the second stage clip withstands on valve body, the other end withstands on the second valve rod, and the second stage clip orders about one end of the second valve rod and leans against on the second spool.
  10. A kind of drain valve the most according to claim 7, it is characterised in that: the outer peripheral face of described second valve rod is provided with a connection bump, and one end of memory alloy spring is connected in described connection bump.
CN201620478769.9U 2016-05-24 2016-05-24 Steam trap valve Expired - Fee Related CN205640203U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620478769.9U CN205640203U (en) 2016-05-24 2016-05-24 Steam trap valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620478769.9U CN205640203U (en) 2016-05-24 2016-05-24 Steam trap valve

Publications (1)

Publication Number Publication Date
CN205640203U true CN205640203U (en) 2016-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620478769.9U Expired - Fee Related CN205640203U (en) 2016-05-24 2016-05-24 Steam trap valve

Country Status (1)

Country Link
CN (1) CN205640203U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473241A (en) * 2020-06-15 2020-07-31 韩帅飞 Inverted bucket type drain valve capable of preventing flash and leakage
CN111473240A (en) * 2020-06-15 2020-07-31 韩帅飞 Energy-saving inverted bucket type drain valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473241A (en) * 2020-06-15 2020-07-31 韩帅飞 Inverted bucket type drain valve capable of preventing flash and leakage
CN111473240A (en) * 2020-06-15 2020-07-31 韩帅飞 Energy-saving inverted bucket type drain valve
CN111473240B (en) * 2020-06-15 2021-08-20 天津卡尔斯阀门股份有限公司 Energy-saving inverted bucket type drain valve
CN111473241B (en) * 2020-06-15 2021-10-01 维都利阀门有限公司 Inverted bucket type drain valve capable of preventing flash and leakage

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161012

Termination date: 20190524

CF01 Termination of patent right due to non-payment of annual fee