CN203743539U - Magnetic pressure release valve - Google Patents
Magnetic pressure release valve Download PDFInfo
- Publication number
- CN203743539U CN203743539U CN201420101700.5U CN201420101700U CN203743539U CN 203743539 U CN203743539 U CN 203743539U CN 201420101700 U CN201420101700 U CN 201420101700U CN 203743539 U CN203743539 U CN 203743539U
- Authority
- CN
- China
- Prior art keywords
- valve
- pilot valve
- main valve
- valve body
- mounting groove
- 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.)
- Expired - Lifetime
Links
- 239000011229 interlayer Substances 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract 2
- 238000005192 partition Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a magnetic pressure release valve which comprises a main valve and a pilot valve. The main valve comprises a main valve body, large and small heads, a spray nozzle, a middle partition layer and a main valve flap arranged in a main valve flap installing groove through a first spring and used for controlling communication or disconnection of a steam channel of the spray nozzle and a first flowing channel. The pilot valve comprises an electromagnet device, a pilot valve body, a pilot valve flap installing groove, a second communication channel, a second discharge channel, a guiding sleeve located in the pilot valve flap installing groove, a pilot valve flap arranged in the guiding sleeve and used for controlling communication or disconnection of the second communication channel and the discharge channel, a valve rod fixedly connected with the guiding sleeve and a connecting rod matched with an execution mechanism of the electromagnet device, wherein the second communication channel and the second discharge channel are arranged in the pilot valve body and communicated with the pilot valve flap installing groove, and a connecting pipe is connected with the second communication channel through a bent pipe. The magnetic pressure release valve begins to work before a safety valve acts, prevents the safety valve from being frequently opened and bouncing and accordingly prevents the sealed face from being damaged.
Description
Technical field
The utility model relates to boiler overpressure protection technical field, refers to particularly a kind of electromagnetic relief valve.
Background technique
Existing boiler overpressure protector is mainly spring safety valve, and when boiler surpasses the working pressure of its regulation, spring safety valve can open to jump discharges unnecessary pressure, thus protection boiler.Yet, because opening jumping, spring safety valve can discharge a large amount of steam, and not only caused the waste of the energy, and high speed steam flow very easily washes out the sealing surface of spring safety valve, thereby affect the sealability of spring safety valve.
Model utility content
The purpose of this utility model will provide a kind of electromagnetic relief valve exactly; this electromagnetic relief valve is installed on superheater outlet port; this electromagnetic relief valve was started working before spring safety valve action; avoid spring safety valve to damage sealing surface because frequently opening rebound seat; protect spring safety valve, reduced the replacement frequency of spring safety valve.
For realizing this object, the electromagnetic relief valve that the utility model is designed, it is characterized in that: it comprises main valve and pilot valve, described main valve comprises the valve body of main valve that offers the first flow channels and middle part cavity, the CONCENTRIC REDUCER being fixedly connected with valve body of main valve, be fixed on the nozzle between valve body of main valve and CONCENTRIC REDUCER, be fixed in the cavity of middle part and be provided with the intermediate interlayer of main valve flap mounting groove, be arranged on the first through hole in intermediate interlayer, by the first spring, be arranged in main valve flap mounting groove and for the main valve flap of conducting or disconnection between the gas passage of Control Nozzle and middle part cavity, wherein, the first discharge passage in described CONCENTRIC REDUCER and the gas channel connection of nozzle, described intermediate interlayer is separated into upper and lower two parts by middle part cavity, described the first through hole is by two part UNICOMs up and down of middle part cavity, described the first flow channels and center lumen sports association are logical, in described intermediate interlayer, be provided with the first connecting pipe being communicated with main valve flap mounting groove bottom, described valve body of main valve is provided with the connecting tube being communicated with the first connecting pipe,
Described pilot valve comprises electromagnet apparatus, pilot valve body, be arranged on the guide sleeve mounting groove in pilot valve body, be arranged in pilot valve body and the second communication passage and the second discharge passage that are communicated with guide sleeve mounting groove, be fixed on the guide sleeve in guide sleeve mounting groove, be opened in guide sleeve and the second through hole and the pilot valve flap mounting groove of mutual conduction, be arranged in pilot valve flap mounting groove and for controlling the pilot valve flap of the second communication passage and the second discharge passage conducting or disconnection, the connecting rod mating with the actuator of electromagnet apparatus, the valve rod that top is fixedly connected with connecting rod, wherein, on described pilot valve body, be fixed with column, on described column, be fixed with bearing, on described bearing, offer tapped hole, the top of tapped hole is fixed with locking nut, adjustment screw is set in tapped hole and locking nut, the outer side wall of adjusting screw is connected with locking nut inside thread with tapped hole, adjust madial wall and the valve rod socket of screw, valve rod is provided with upper spring seat, the second spring and lower spring cup, upper spring seat top is withstood by the bottom of adjusting screw, upper spring seat bottom connects the top of the second spring, the bottom of the second spring connects lower spring cup top, valve rod is provided with lower spring cup defining flange, lower spring cup defining flange withstands lower spring cup bottom, the bottom of valve rod can and provide downforce to pilot valve flap through the second through hole,
Described connecting tube connects the second communication passage by bend pipe.
Preferably, it also comprises fixing rod, and described valve body of main valve is fixedly connected with pilot valve body by fixing rod.
Preferably, it also comprises clamping plate and bolt, and described connecting rod is fixedly connected with bolt by clamping plate with valve rod.
Preferably, it also comprises strut, and described electromagnet apparatus is fixedly connected with bearing by strut.
Preferably, the output terminal of described the second discharge passage is connected with discharge bend.
The utility model is arranged on superheater outlet port, and above-mentioned electromagnetic relief valve was started working before spring safety valve action, by the work that cooperatively interacts of main valve flap in electromagnetic relief valve and pilot valve flap, the pressure in superheater can be controlled to normal scope.So just can reduce the access times of spring safety valve, avoid spring safety valve to damage sealing surface because frequently opening rebound seat, protect spring safety valve, reduce the replacement frequency of spring safety valve, and reduced the discharge of steam, save the energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-valve body of main valve, 2-main valve flap, 3-nozzle, 4-intermediate interlayer, 5-connecting tube, 6-CONCENTRIC REDUCER, the 7-the first spring, the 8-the first discharge passage, 9-pilot valve body, 10-bend pipe, 11-discharge bend, 12-guide sleeve, 13-valve rod, 14-pilot valve flap, 15-column, 16-bearing, 17-upper spring seat, the 18-the second spring, 19-lower spring cup, 20-adjustment screw, 21-locking nut, 22-connecting rod, 23-electromagnet apparatus, 24-clamping plate, 25-bolt, the 26-the first flow channels, 27-main valve flap mounting groove, 28-guide sleeve mounting groove, the 29-the second communication passage, the 30-the second discharge passage, the 31-the first through hole, the 32-the first connecting pipe, 33-tapped hole, 34-fixing rod, 35-middle part cavity, 36-lower spring cup defining flange, 37-pilot valve flap mounting groove, the 38-the second through hole, 39-strut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Electromagnetic relief valve as shown in Figure 1, it comprises main valve and pilot valve, described main valve comprises the valve body of main valve 1 that offers the first flow channels 26 and middle part cavity 35, the CONCENTRIC REDUCER 6 being fixedly connected with valve body of main valve 1, be fixed on the nozzle 3 between valve body of main valve 1 and CONCENTRIC REDUCER 6, be fixed in the cavity 35 of middle part and be provided with the intermediate interlayer 4 of main valve flap mounting groove 27, be arranged on the first through hole 31 in intermediate interlayer 4, by the first spring 7, be arranged in main valve flap mounting groove 27 and for the main valve flap 2 of conducting or disconnection between the gas passage of Control Nozzle 3 and middle part cavity 35, wherein, the first discharge passage 8 in described CONCENTRIC REDUCER 6 and the gas channel connection of nozzle 3, described intermediate interlayer 4 is separated into upper and lower two parts by middle part cavity 35, described the first through hole 31 is by two part UNICOMs up and down of middle part cavity 35, described the first flow channels 26 and middle part cavity 35 UNICOMs, in described intermediate interlayer 4, be provided with the first connecting pipe 32 being communicated with main valve flap mounting groove 27 bottoms, described valve body of main valve 1 is provided with the connecting tube 5 being communicated with the first connecting pipe 32,
Described pilot valve comprises electromagnet apparatus 23, pilot valve body 9, be arranged on the guide sleeve mounting groove 28 in pilot valve body 9, be arranged in pilot valve body 9 and the second communication passage 29 and the second discharge passage 30 that are communicated with guide sleeve mounting groove 28, be fixed on the guide sleeve 12 in guide sleeve mounting groove 28, be opened in guide sleeve 12 and the second through hole 38 and the pilot valve flap mounting groove 37 of mutual conduction, be arranged in pilot valve flap mounting groove 37 and for controlling the pilot valve flap 14 of the second communication passage 29 and the second discharge passage 30 conductings or disconnection, the connecting rod 22 mating with the actuator of electromagnet apparatus 23, the valve rod 13 that top is fixedly connected with connecting rod 22, wherein, on described pilot valve body 9, be fixed with column 15, on described column 15, be fixed with bearing 16, on described bearing 16, offer tapped hole 33, the top of tapped hole 33 is fixed with locking nut 21, the interior setting of tapped hole 33 and locking nut 21 adjusted screw 20, the outer side wall of adjusting screw 20 is connected with locking nut 21 inside threads with tapped hole 33, adjust madial wall and valve rod 13 sockets of screw 20, valve rod 13 is provided with upper spring seat 17, the second spring 18 and lower spring cup 19, upper spring seat 17 tops are withstood by the bottom of adjusting screw 20, upper spring seat 17 bottoms connect the top of the second spring 18, the bottom of the second spring 18 connects lower spring cup 19 tops, valve rod 13 is provided with lower spring cup defining flange 36, lower spring cup defining flange 36 withstands lower spring cup 19 bottoms, the bottom of valve rod 13 can through the second through hole 38 and to pilot valve flap 14 provide downforce (spring force that the second spring 18 applies by valve rod 13 to pressing down, thereby compress pilot valve flap 14 and realize the effect disconnecting between the second communication passage 29 and the second discharge passage 30), described connecting tube 5 connects the second communication passage 29 by bend pipe 10.
In technique scheme, it also comprises fixing rod 34, and described valve body of main valve 1 is fixedly connected with pilot valve body 9 by fixing rod 34.
In technique scheme, it also comprises clamping plate 24 and bolt 25, and described connecting rod 22 is fixedly connected with bolt 25 by clamping plate 24 with valve rod 13.
In technique scheme, it also comprises strut 39, and described electromagnet apparatus 23 is fixedly connected with bearing 16 by strut 39.
In technique scheme, the output terminal of described the second discharge passage 30 is connected with discharge bend 11.
Working procedure of the present utility model is: when boiler normally moves, the tight front cover of spring force pressure that pilot valve flap 14 relies on the second spring 18 to apply forms sealing, at the interior mineralization pressure of bend pipe 10 being communicated with between main valve and pilot valve, this pressure equals the now pressure of superheater, this pressure is transported to the bottom of main valve flap 2 by the first connecting pipe 32, the sealing surface that main valve flap 2 relies on this pressure to compress nozzle 3 forms sealing (now, disconnecting between the first flow channels 26 and the gas passage of nozzle 3).When superheater internal pressure rises to the Set pressure of electromagnetism pressure relief device, master controller makes it produce magnetic force to electromagnet apparatus 23 input signals, this magnetic force sucks up connecting rod 22 and valve rod 13, this magnetic force is greater than the spring force of the second spring 18, valve rod 13 does not now provide downforce to pilot valve flap 14, medium in bend pipe 10 backs down pilot valve flap 14, medium in bend pipe 10 enters the second discharge passage 30 and passes through discharge bend 11 discharged to home, now connecting tube 5 is zero with the pressure in bend pipe 10, act on the disappearance that upwards pressure of main valve flap 2 bottoms, under the first spring 7 effect by compression, main valve flap 2 departs from nozzle 3, medium in superheater enters the first discharge passage 8 discharges by the middle part cavity 35 of the first flow channels 26 process main valves by nozzle 3, when superheater internal pressure returns to normal operating pressure, master controller is to electromagnet apparatus 23 input signals, close the magnetic force of electromagnet, under the effect of the downward elastic force of the second spring 18, pilot valve is closed sealing again, connecting tube 5 and the interior mineralization pressure of bend pipe 10, main valve is also closed sealing again.So just realized in the situation that not starting spring safety valve the pressure in superheater has been controlled to normal scope.
The content that this specification is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. an electromagnetic relief valve, it is characterized in that: it comprises main valve and pilot valve, described main valve comprises the valve body of main valve (1) that offers the first flow channels (26) and middle part cavity (35), the CONCENTRIC REDUCER (6) being fixedly connected with valve body of main valve (1), be fixed on the nozzle (3) between valve body of main valve (1) and CONCENTRIC REDUCER (6), be fixed in middle part cavity (35) and be provided with the intermediate interlayer (4) of main valve flap mounting groove (27), be arranged on the first through hole (31) in intermediate interlayer (4), by the first spring (7), be arranged in main valve flap mounting groove (27) and for the main valve flap (2) of conducting or disconnection between the gas passage of Control Nozzle (3) and middle part cavity (35), wherein, the first discharge passage (8) in described CONCENTRIC REDUCER (6) and the gas channel connection of nozzle (3), described intermediate interlayer (4) is separated into upper and lower two parts by middle part cavity (35), described the first through hole (31) is by two part UNICOMs up and down of middle part cavity (35), described the first flow channels (26) and middle part cavity (35) UNICOM, in described intermediate interlayer (4), be provided with the first connecting pipe (32) being communicated with main valve flap mounting groove (27) bottom, described valve body of main valve (1) is provided with the connecting tube (5) being communicated with the first connecting pipe (32),
Described pilot valve comprises electromagnet apparatus (23), pilot valve body (9), be arranged on the guide sleeve mounting groove (28) in pilot valve body (9), be arranged in pilot valve body (9) and the second communication passage (29) and the second discharge passage (30) that are communicated with guide sleeve mounting groove (28), be fixed on the guide sleeve (12) in guide sleeve mounting groove (28), be opened in guide sleeve (12) and the second through hole (38) and the pilot valve flap mounting groove (37) of mutual conduction, be arranged in pilot valve flap mounting groove (37) and for controlling the pilot valve flap (14) of the second communication passage (29) and (30) conducting of the second discharge passage or disconnection, the connecting rod (22) mating with the actuator of electromagnet apparatus (23), the valve rod (13) that top is fixedly connected with connecting rod (22), wherein, on described pilot valve body (9), be fixed with column (15), on described column (15), be fixed with bearing (16), on described bearing (16), offer tapped hole (33), the top of tapped hole (33) is fixed with locking nut (21), in tapped hole (33) and locking nut (21), arrange and adjust screw (20), the outer side wall of adjusting screw (20) is connected with locking nut (21) inside thread with tapped hole (33), adjust madial wall and valve rod (13) socket of screw (20), valve rod (13) is provided with upper spring seat (17), the second spring (18) and lower spring cup (19), upper spring seat (17) top is withstood by the bottom of adjusting screw (20), upper spring seat (17) bottom connects the top of the second spring (18), the bottom of the second spring (18) connects lower spring cup (19) top, valve rod (13) is provided with lower spring cup defining flange (36), lower spring cup defining flange (36) withstands lower spring cup (19) bottom, the bottom of valve rod (13) can and provide downforce to pilot valve flap (14) through the second through hole (38),
Described connecting tube (5) connects the second communication passage (29) by bend pipe (10).
2. electromagnetic relief valve according to claim 1, is characterized in that: it also comprises fixing rod (34), and described valve body of main valve (1) is fixedly connected with pilot valve body (9) by fixing rod (34).
3. electromagnetic relief valve according to claim 1, is characterized in that: it also comprises clamping plate (24) and bolt (25), and described connecting rod (22) is fixedly connected with bolt (25) by clamping plate (24) with valve rod (13).
4. electromagnetic relief valve according to claim 1, is characterized in that: it also comprises strut (39), and described electromagnet apparatus (23) is fixedly connected with bearing (16) by strut (39).
5. electromagnetic relief valve according to claim 1, is characterized in that: the output terminal of described the second discharge passage (30) is connected with discharge bend (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101700.5U CN203743539U (en) | 2014-03-07 | 2014-03-07 | Magnetic pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101700.5U CN203743539U (en) | 2014-03-07 | 2014-03-07 | Magnetic pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743539U true CN203743539U (en) | 2014-07-30 |
Family
ID=51343340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101700.5U Expired - Lifetime CN203743539U (en) | 2014-03-07 | 2014-03-07 | Magnetic pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743539U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455659A (en) * | 2014-12-08 | 2015-03-25 | 章华 | Top steam exhaust electromagnetic pressure relief valve for main steam system of power station |
| CN104455627A (en) * | 2014-12-08 | 2015-03-25 | 章华 | Side exhaust electromagnetic relief valve weldforged valve body structure |
| CN104500762A (en) * | 2014-12-08 | 2015-04-08 | 章华 | Protection structure of pilot sealing surface of electromagnetic decompression valve |
| CN108488450A (en) * | 2018-04-29 | 2018-09-04 | 哈电集团哈尔滨电站阀门有限公司 | A kind of electromagnet bleeder valve |
| CN112344066A (en) * | 2020-10-26 | 2021-02-09 | 哈电集团哈尔滨电站阀门有限公司 | Direct-discharge type pneumatic relief valve |
-
2014
- 2014-03-07 CN CN201420101700.5U patent/CN203743539U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455659A (en) * | 2014-12-08 | 2015-03-25 | 章华 | Top steam exhaust electromagnetic pressure relief valve for main steam system of power station |
| CN104455627A (en) * | 2014-12-08 | 2015-03-25 | 章华 | Side exhaust electromagnetic relief valve weldforged valve body structure |
| CN104500762A (en) * | 2014-12-08 | 2015-04-08 | 章华 | Protection structure of pilot sealing surface of electromagnetic decompression valve |
| CN108223891A (en) * | 2014-12-08 | 2018-06-29 | 乌鲁木齐九品芝麻信息科技有限公司 | Power station main steam system top steam discharge electromagnetic relief valve |
| CN108343775A (en) * | 2014-12-08 | 2018-07-31 | 赵红艳 | Power station main steam system top steam discharge electromagnetic relief valve |
| CN108223891B (en) * | 2014-12-08 | 2019-07-12 | 宝嘉智能科技(南通)有限公司 | Power station main steam system top steam discharge electromagnetic relief valve |
| CN108488450A (en) * | 2018-04-29 | 2018-09-04 | 哈电集团哈尔滨电站阀门有限公司 | A kind of electromagnet bleeder valve |
| CN112344066A (en) * | 2020-10-26 | 2021-02-09 | 哈电集团哈尔滨电站阀门有限公司 | Direct-discharge type pneumatic relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |