CN204922119U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN204922119U CN204922119U CN201520716491.XU CN201520716491U CN204922119U CN 204922119 U CN204922119 U CN 204922119U CN 201520716491 U CN201520716491 U CN 201520716491U CN 204922119 U CN204922119 U CN 204922119U
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- China
- Prior art keywords
- guide rod
- valve body
- safety valve
- buoy
- detection
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Abstract
The utility model discloses a safety valve, including the valve body the outlet side valve body wall mounting of valve body has the measuring guide arm of vertical setting, is packaged with the tongue tube in detecting the guide arm, the valve body outside is drawn forth through detecting the guide arm to the wire of drawing forth of tongue tube, movable suit has the measuring buoy outside detecting the guide arm, is packaged with the magnet part in detecting the buoy. Adopt the utility model discloses a safety valve can in time provide safety valve the action message, feeds back safety valve's the state of actually opening and close.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of improvement being applicable to the safety valve of liquid medium.
Background technique
Safety valve belongs to self-acting valve class; play safety protection effect in systems in which; its open-shut device is in normally off under external force; when the fluid pressure in equipment or pipeline increases to over specified value; safety valve is opened automatically; by preventing pressure medium in pipeline or equipment from exceeding specified value to discharge medium outside system, thus guarantee system does not have an accident because of overpressure.Thus safety valve is a kind of special important valve, and it not only plays the effect of switch, the more important thing is and plays vital effect to the safety of equipment.
The action voluntarily with fluid pressure change in pipeline of existing safety valve, automatically open release when fluid pressure increases to over specified value, close voluntarily again after fluid pressure declines, its favourable aspect is action voluntarily, pressure in maintenance pipeline below safety pressure, and is guarded without the need to personnel.But transfiniting of pressure often means that fault has appearred in equipment in equipment pipeline, at this moment the startup respite safety problem that may occur of safety valve, but the hidden danger of fault still exists, the action voluntarily of its safety valve, left unguarded then make the hidden danger of equipment failure be difficult to find and get rid of, even also do not know safety valve whether action, its advantage becomes the accomplice covering potential faults.In addition, after safety valve self breaks down, be then failure to actuate when likely there is this action, should not action time random action situation, cause pressure anomaly in equipment pipeline, affect the normal operation of equipment, this is equally due to cannot Timeliness coverage without the need to personnel guard.
Model utility content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of safety valve, and it can provide safety valve action information in time, the actual open/close states of feedback security valve.
In order to solve the problems of the technologies described above, a kind of safety valve of the present utility model, comprises valve body, and the outlet side valve body wall of described valve body is provided with the detection guide rod vertically arranged, in detection guide rod, be packaged with dry reed-pipe, the extraction wire of described dry reed-pipe is drawn out to valve body outside by detecting guide rod; Outside detection guide rod, be movably installed with detection buoy, in detection buoy, be packaged with magnet part.
In said structure, owing to being provided with the detection guide rod vertically arranged on the outlet side valve body wall of described valve body, dry reed-pipe is packaged with in detection guide rod, the extraction wire of described dry reed-pipe is drawn out to valve body outside by detecting guide rod, detection buoy is movably installed with outside detection guide rod, magnet part is packaged with in detection buoy, then can play induction trigger action to being encapsulated in the dry reed-pipe detected in guide rod by movable set detecting the magnet part in the detection buoy on guide rod, magnet part is close to when leaving dry reed-pipe, two reeds in dry reed-pipe can corresponding change its lead to, disconnected state, thus be switched on or switched off corresponding control loop by drawing wire, testing signal is sent to control gear.When arranged at safety valve is in closed condition, the outlet side of valve body does not have liquid, detect buoy and be in extreme lower position, dry reed-pipe does not have make-and-break signal to send, in devices illustrated pipeline, fluid pressure is in normal state, and when fluid pressure in equipment pipeline exceeds specified value and makes safety valve automatically open drainage release, the keying valve gap of liquid in safety valve suction side through opening flow into the outlet side of safety valve, detect buoy can under the effect of liquid buoyancy, leave original position and rise to corresponding liquid level, now the magnet part detected in buoy just can change the relative position with dry reed-pipe thereupon, two reeds in dry reed-pipe are changed logical, disconnected state, and send to control gear the alarm detection signal that safety valve opens by drawing wire, the detection guide rod of vertical setting ensure that detecting buoy can float and fall flexibly, be active in one's movements reliable, and when the fluid pressure in equipment pipeline is returned to below specified value, safety valve can in valve mechanical load effect under close, liquid cutout in valve outlet side, detect the initial position that buoy can fall back to lowest part thereupon under the effect of deadweight, in dry reed-pipe, two reeds change logical again, disconnected state, and sent the testing signal of safety valve closedown to control gear by extraction wire, like this, safety valve opens each time, close and all can send corresponding safety valve action information by dry reed-pipe action, thus make equipment use attendant understand equipment operation condition in time, discovering device potential faults, and when safety valve self break down make valve opening and closing action abnormal time, as long as there is flow of fluid valve outlet side, will be detected by the change in location between magnet part and dry reed-pipe, thus prompt facility working service personal security valve is in opening state, pinpoint the problems according to the testing signal result of exception in time, ensure that equipment normal safe runs.
A kind of preferred implementation of the present utility model, described detection guide rod is installed on the valve body wall of valve outlet side bottom, and described dry reed-pipe is packaged in the below detecting guide rod.Adopt this mode of execution, detect guide rod position low, can not produce the flow of fluid of valve export side and hinder, dry reed-pipe is packaged in the below detecting guide rod can make detection buoy leave original position can be detected in time once producing floating, ensure that the sensitivity of detection.
Another kind of preferred implementation of the present utility model, the valve body wall of valve outlet side bottom is provided with detection mounting hole, described detection guide rod and detect buoy and be installed in this detection mounting hole, detects and mounting hole sidewall has and the drainage trough that leads in valve outlet end.Adopt this mode of execution, liquid first moment of flowing out when safety valve is opened will flow in the detection mounting hole that arranges on valve outlet side bottom valve body wall, make the timely action of detection buoy, detect mounting hole sidewall has then ensure that valve closing with the drainage trough that leads in valve outlet end after the liquid detected in mounting hole can flow out in time in the valve outlet end of valve body, make detection buoy be repositioned to initial position rapidly and make dry reed-pipe action send corresponding Detection Information.
Another preferred implementation of the present utility model, described detection guide rod is installed on the valve body wall of valve outlet side roof part, and described dry reed-pipe is packaged in the below detecting guide rod.Adopt this mode of execution, can utilize equally the open/close states of detection buoy detection safety valve, and detection buoy can be made to leave original position can be detected in time once producing floating, ensure that the sensitivity of detection.
The further preferred implementation of the utility model, the mounting end of described detection guide rod and valve body wall are provided with sealing gasket between attachment face.Adopt this mode of execution, can ensure not produce leakage after detect guide rod installs on valve body wall.
Another further preferred implementation of the utility model, is provided with back-up ring at the overhanging end of described detection guide rod.Adopt this mode of execution, can ensure that detecting buoy can not deviate to detect guide rod after mounting and in working procedure.
The another further preferred implementation of the utility model, described detection guide rod is cylindrical polyethylene bar.Adopt this mode of execution, cylinder guide is easily manufactured, little to the resistance detecting buoy in using process, and the guide rod energy acid resistant alkali of polyethylene material, be applicable to various liquid of different nature.
The utility model is preferred implementation further, and described detection buoy is circular foam polyethylene.Adopt this mode of execution, circular buoy is convenient to reduce resistance to flow of fluid, and do not affect the usability of safety valve, polythene material density is little, quality is light, through foaming after, more greatly, action is sensitiveer for buoyancy.
Another further preferred implementation of the utility model, described magnet part is circular.Adopt this mode of execution, no matter what circumferential position the magnet part of ring is in can make dry reed-pipe trigger action, functional reliability is high.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model safety valve is described in further detail.
Fig. 1 is the structural representation of a kind of embodiment of the utility model safety valve;
Fig. 2 is the partial enlarged drawing detecting guide rod position in structure shown in Fig. 1;
Fig. 3 is the plan view of structure shown in Fig. 2.
In figure: 1-valve body, 2-draw wire, 3-detects buoy, 4-detects guide rod, 5-detects mounting hole, 6-sealing gasket, 7-magnet part, 8-dry reed-pipe, 9-back-up ring, 10-drainage trough.
Embodiment
In safety valve shown in Fig. 1 to Fig. 3, safety valve for utilize spring force to overcome flap lower dielectric pressure produce a kind of safety valve of active force, the suction side that valve body of safety valve 1 is connected with equipment working line is positioned at the below of safety valve, is positioned at the left side above flap for the outlet side on the valve body 1 of release.Valve body wall bottom the outlet side of valve body 1 is provided with and detects mounting hole 5, mounting hole 5 sidewall has and the drainage trough 10 that leads in valve outlet end detecting, the bottom land of drainage trough 10 is concordant with bottom valve outlet stomidium wall, the width of drainage trough 10 is advisable with 2 to 5 millimeters, to drain the hydrops detected in mounting hole 5 within a short period of time, detection mounting hole 5 and drainage trough 10 are all by casting straight forming; In detection mounting hole 5, the detection guide rod 4 vertically arranged is installed, detecting guide rod 4 main body is cylindrical bar, make with polythene material, the overhanging end detecting guide rod 4 is provided with back-up ring 9, back-up ring 9 is connected in and detects on guide rod 4 cylindrical, detect the mounting end of guide rod 4 and valve body wall detect mounting hole 5 aperture attachment face between be provided with sealing gasket 6, dry reed-pipe 8 is packaged with in detection guide rod 4, dry reed-pipe 8 is packaged in the below detecting guide rod 4, namely near the position detecting guide rod 4 mounting end, the extraction wire 2 of dry reed-pipe 8 is drawn out to valve body 1 outside by detecting guide rod 4; Be movably installed with outside detection guide rod 4 and detect buoy 3, detecting buoy 3 is circular foam polyethylene, is packaged with in circular magnet part 7 in circular detection buoy 3.
The utility model can also have other mode of execution (not shown), namely detecting guide rod 4 can not be mounted in the detection mounting hole 5 bottom valve body 1 outlet side, but be installed on the valve body wall at valve body 1 outlet side top, now dry reed-pipe 8 is packaged in the below detecting guide rod 4, namely guide rod 4 overhanging end is detected near the position of back-up ring 9, the processing detecting guide rod 4 mounting hole can be convenient to like this, there is when being applicable to release the occasion of certain flow.
Below embodiments more of the present utility model are only listed, but the utility model is not limited in this, more improvement and conversion can also be made, as as described in the utility model the safety valve that is suitable for and be not only a kind of utilize spring force to overcome flap lower dielectric pressure produce the safety valve of active force, but can for utilize other mechanical force such as weight, lever weighting hammer to overcome flap lower dielectric pressure produce other all kinds of safety valve of active force; Described detection guide rod 4 may not be to be made up of polyethylene material, and can be made up of stainless steel or other material; Described detection buoy 3 can not be foam polyethylene too, but stainless steel open circles ring body, required function can be reached equally.And so on, as long as improvement done on the utility model basic principle basis and conversion, all should be considered as falling in protection domain of the present utility model.
Claims (9)
1. a safety valve, comprise valve body (1), it is characterized in that: the detection guide rod (4) vertically arranged is installed on the outlet side valve body wall of described valve body (1), in detection guide rod (4), be packaged with dry reed-pipe (8), the extraction wire (2) of described dry reed-pipe (8) is drawn out to valve body (1) outside by detecting guide rod (4); Be movably installed with outside detection guide rod (4) and detect buoy (3), in detection buoy (3), be packaged with magnet part (7).
2. safety valve according to claim 1, is characterized in that: described detection guide rod (4) is installed on the valve body wall bottom valve body (1) outlet side, and described dry reed-pipe (8) is packaged in the below detecting guide rod (4).
3. safety valve according to claim 2, it is characterized in that: the valve body wall bottom valve body (1) outlet side is provided with and detects mounting hole (5), described detection guide rod (4) and detect buoy (3) and be installed in this detection mounting hole (5), detects and mounting hole (5) sidewall has and the drainage trough (10) that leads in valve outlet end.
4. safety valve according to claim 1, is characterized in that: described detection guide rod (4) is installed on the valve body wall at valve body (1) outlet side top, and described dry reed-pipe (8) is packaged in the below detecting guide rod (4).
5. the safety valve according to claim 1,2 or 4, is characterized in that: the mounting end of described detection guide rod (4) and valve body wall are provided with sealing gasket (6) between attachment face.
6. safety valve according to claim 1, is characterized in that: the overhanging end of described detection guide rod (4) is provided with back-up ring (9).
7. safety valve according to claim 1, is characterized in that: described detection guide rod (4) is cylindrical polyethylene bar.
8. safety valve according to claim 1, is characterized in that: described detection buoy (3) is circular foam polyethylene.
9. safety valve according to claim 1, is characterized in that: described magnet part (7) is in circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716491.XU CN204922119U (en) | 2015-09-17 | 2015-09-17 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716491.XU CN204922119U (en) | 2015-09-17 | 2015-09-17 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922119U true CN204922119U (en) | 2015-12-30 |
Family
ID=54971248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520716491.XU Active CN204922119U (en) | 2015-09-17 | 2015-09-17 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568075A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Safety control equipment for boiler |
-
2015
- 2015-09-17 CN CN201520716491.XU patent/CN204922119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568075A (en) * | 2016-10-18 | 2017-04-19 | 天津市华诺盛源科技有限公司 | Safety control equipment for boiler |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |