CN106568076B - A kind of boiler protection control system - Google Patents
A kind of boiler protection control system Download PDFInfo
- Publication number
- CN106568076B CN106568076B CN201610911781.9A CN201610911781A CN106568076B CN 106568076 B CN106568076 B CN 106568076B CN 201610911781 A CN201610911781 A CN 201610911781A CN 106568076 B CN106568076 B CN 106568076B
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- Prior art keywords
- valve
- spool
- valve rod
- spring
- valve body
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- Expired - Fee Related
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009123 feedback regulation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/44—Applications, arrangements, or dispositions of alarm or automatic safety devices of safety valves
- F22B37/446—Safety devices responsive to overpressure
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/042—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with locking or disconnecting arrangements
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/46—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/47—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to abnormal temperature, e.g. actuated by fusible plugs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a kind of boiler protection control system, including the temperature detector, liquid level detector and pressure detector being connect with controller input terminal, the automatic regulating valve and blow valve that are connect with controller output end；It further include the safety regulating valve being arranged on boiler drum, safety regulating valve includes the valve body with valve deck, body base offers valve port, side wall offers steam drain, body cavity is equipped with valve rod, and valve stem bottom is equipped with the spool for being connected to valve port, and spring is arranged on valve rod and is equipped with spring retainer and is buckled, spring be limited in spring retainer buckle and spool between, on body wall and valve rod upper end horizontal direction pass through a gag lever post.The invention has security monitoring means perfect；The advantage that the structure of safety valve is simple, assembly and disassembly is convenient.
Description
Technical field
The invention belongs to boiler safety control field, more particularly, to a kind of boiler protection control system.
Background technique
Boiler is the common energy device of one kind used in industrial production, in boiler operatiopn, the safety prison of boiler
It surveys and control is vital.In existing boiler often automatic detection and control system and it is not perfect, feedback and not in time, and its
Safety control measures are relatively weak, and especially as the boiler safety valve of boiler important component, safety valve is for controlling pressure
Power is no more than setting value, can run important protective effect to personal safety and equipment.Common safety valve has Weight type and bullet
The various structures such as spring formula can be adjusted automatically according to the pressure value of setting, but existing safety valve often exists that structure is complicated,
Assembling not easy to disassemble, take-off is ineffective, artificial maintenance is inconvenient, operator easily cause when other relevant operations and accidentally touches
Problem.
Summary of the invention
In view of this, the invention is directed to a kind of boiler protection control system, to solve safety in the prior art
Monitoring system is not perfect, feedback regulation not in time, safety valve structure is complicated, assembling not easy to disassemble, take-off are ineffective, artificial maintenance not
Convenient, easy the problems such as accidentally touching.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of boiler protection control system including controller, the temperature detector being arranged on burner hearth, is arranged in boiler vapour
Automatic regulating valve on packet water inlet pipe, the liquid level detector being arranged on boiler drum, pressure detector, blow valve and safety are adjusted
Valve is saved, electric signal is connected to the controller respectively for the temperature detector, the liquid level detector and the pressure detector
Respective input, the automatic regulating valve and the blow valve are connected to the corresponding output end of the controller；
The safety regulating valve includes valve body；The body base offers valve port, and the body wall lower end offers
Steam drain, the top end of the valve body are installed with valve deck；The body cavity is equipped with valve rod；It is arranged with spool below the valve rod,
Be installed with supporting plate in the valve rod bottom end below the spool, the spool is in contact with the supporting plate, the spool with it is described
Valve port is adapted；The valve rod upper end is installed with spring retainer button；Spring is also arranged on the valve rod, the spring is located at institute
It states between spring retainer button and the spool, the spring bottom end is fixedly connected with the spool, the top of the spring and institute
State spring retainer button abutting；The valve stem tip passes through the valve deck；It is additionally provided with gag lever post above the spring retainer button, institute
The shaft for stating gag lever post sequentially passes through the body wall and valve rod in the horizontal direction, and the head of the gag lever post is fitted in institute
It states on the outer surface of body wall.
Further, the valve deck is fixedly connected by bolt with the valve body.
Further, the edge that the bonnet lower surface is located at the valve rod is equipped with baffle.
Further, the position that the position and the spool that the spool is in contact with the valve port are in contact with the supporting plate
It sets and is equipped with refractory seals pad.
Further, the position and the valve deck that the head of the gag lever post is in contact with the valve body connect with the valve body
The position of touching is equipped with gasket.
Further, the valve rod is threadably secured with the supporting plate and connect.
Further, the shaft of the gag lever post is equipped with external screw thread, and the body wall is passed through in the gag lever post
Position offers the internal screw thread being adapted with the external screw thread.
Further, the valve stem tip has been connected through a screw thread handle.
Further, the controller uses programmable control unit.
Compared with the existing technology, a kind of boiler protection control system described in the invention has the advantage that
(1) the invention security monitoring means are perfect, feedback regulation is timely, acquire dependency number in boiler by controller
According to, and it is adjusted in real time, automatic regulating valve can timely supplement water level, and blow valve can be different in boiler drum pressure
Quickly timely pressure release is carried out when often increasing, and avoids that safety accident occurs；The structure of safety valve is simple, and take-off is sensitive, works as valve port
Pressure reach certain value be that spool pressuring spring moves upwards, and valve port is connected to steam drain, realization pressure regulation；Due to gag lever post
Presence, it is motionless that valve rod can be kept fixed position, effectively prevents accidentally touching the phenomenon that valve rod causes valve rod and spool to shift hair
It is raw, it is highly-safe；When need manually to bleed off pressure or check spool can proper motion on vertical direction when, it is only necessary to pull out limit
The supporting plate of bar, pull-up valve rod, valve rod bottom end can be moved up with movable valve plug with valve rod, convenient and efficient；Valve deck can be from valve body
On disassemble, facilitate operator repair replacement valve body in related accessory.
(2) baffle is equipped at bonnet lower surface valve rod periphery edge described in the invention ensures that valve rod will not level side
Upward displacement；The position that the position and spool that spool is in contact with valve port are in contact with supporting plate is equipped with gasket resistant to high temperature,
The position of position and valve deck and valve body contact that the head of gag lever post is in contact with valve body is respectively provided with gasket, effectively prevent gas leakage
The generation of phenomenon；Valve rod is threadably secured with supporting plate and connect, also by threaded connection, assembling between gag lever post and body wall
Convenient disassembly, stable structure.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of safety valve described in the invention.
Description of symbols:
1- burner hearth；2- temperature detector；3- boiler drum；4- automatic regulating valve；5- liquid level detector；6- pressure detecting
Device；7- blow valve；8- safety regulating valve；9- valve body；10- valve rod；11- spring；12- spool；13- gag lever post；14- valve port；15-
Steam drain；16- valve deck；17- spring retainer button；18- supporting plate；19- shaft；20- head；21- bolt；22- baffle；The resistance to height of 23-
Warm gasket；24- gasket；25- handle.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
A kind of boiler protection control system, as shown in Figure 1, including programmable controller, the temperature being arranged on burner hearth 1 inspection
Survey device 2, the automatic regulating valve 4 being arranged on 3 water inlet pipe of boiler drum, the liquid level detector 5 being arranged on boiler drum 3, pressure
Force detector 6, blow valve 7 and safety regulating valve 8；Temperature detector 2, liquid level detector 5 and pressure detector 6 distinguish electric signal
It is connected to the respective input of controller, automatic regulating valve 4 and blow valve 7 are connected to the corresponding output end of controller；
As shown in Fig. 2, safety regulating valve 8 includes valve body 9；9 bottom of valve body offers valve port 14, and 9 side wall lower ends of valve body are opened
Equipped with steam drain 15,9 top of valve body is installed with valve deck 16 by bolt 21, and the position that valve deck 16 is contacted with valve body 9 is equipped with sealing
Pad 24；9 inner cavity vertical direction of valve body is equipped with valve rod 10；10 bottom end of valve rod has been connected through a screw thread supporting plate 18；The valve
The lower end of bar 18 is arranged with spool 12, and spool 12 is in contact with supporting plate 18, and spool 12 can slide on valve rod 10；Spool 12 with
Valve port 14 is adapted, and spool 12 is for blocking valve port 14；The position and spool 12 and supporting plate 18 that spool 12 is in contact with valve port 14
The position being in contact is equipped with refractory seals pad；10 upper end of valve rod is installed with spring retainer button 17；It is also arranged on valve rod 10
Spring 11, spring 11 are located at spring retainer and buckle between 17 and spool 12, and 11 bottom end of spring is connect with spool 12, the top of spring 11
It is abutted with spring retainer button 17；10 top of valve rod passes through valve deck 16, and is connected with handle 25, and the lower surface of valve deck 16 is along valve rod 10
Baffle 22 is equipped at periphery edge；The top of spring retainer button 17 is additionally provided with gag lever post 13, and the shaft 19 of gag lever post 13 is in level
Side is upward through 8 side wall of valve body and valve rod 10, and shaft 19 is equipped with external screw thread, and 9 side wall of valve body is in the position that gag lever post 13 passes through
Offer the internal screw thread being adapted with external screw thread；The head 20 of gag lever post 13 is fitted on the outer surface of 9 side wall of valve body, gag lever post
The position that 13 head 20 is in contact with valve body 9 is equipped with gasket 24.
The specific work process of the present embodiment is as follows:
Collected signal is transferred to controller, controller by temperature detector 2, liquid level detector 5 and pressure detector 6
Related data is monitored according to the program editted in advance, when finding that liquid level is too low, publication order is to automatic regulating valve 4
Liquid level is controlled, blow valve 7 is can control when internal pressure increases rapidly extremely and carries out quick timely pressure release, avoid occurring
Safety accident；
In boiler running process, safety regulating valve 8 can voluntarily be adjusted cavity pressure, when the pressure of valve port 14 reaches
When certain value, 12 pressuring spring 11 of spool can be made to move upwards, buckle 17 and spool since spring 11 is limited in spring retainer
Between 12, valve rod 10 is motionless, and spring retainer button 17 is fixed on valve rod 10, when only reaching certain pressure value, 12 ability of spool
Enough overcome the position-limiting action of spring 11, push the spring 11 is moved upwards along valve rod 10, and valve port 14 and steam drain 15 are connected at this time, real
The adjusting of existing pressure；
Gag lever post 13 passes through 9 side wall of valve body and valve rod 10, and valve rod 10 is fixed on a position, effectively prevents accidentally touching valve
Bar 10 causes valve rod 10 and spool 12 to shift, and increases one of safety guarantee for the normal operation of boiler；It is quick manually in needs
When bleeding off pressure, it is only necessary to pull out gag lever post 13, pull valve rod 10, then the supporting plate 18 of 10 bottom end of valve rod can be transported upwards with movable valve plug 12
It is dynamic, realize quick steam discharge voltage regulation result；When need to check spool 12 can proper motion when, it is only necessary to pull out gag lever post 13, draw
Ovable valve stem 10 see spool 12 can proper motion in the vertical direction, phenomena such as having some setbacks whether there is or not blocking, movement；Work as discovery
When needing replacing the components such as spool 12 or spring 11, it is only necessary to open valve deck 16, extract gag lever post 13, take out associated components and carry out
Replacement is easy to operate, quick.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (7)
1. a kind of boiler protection control system including controller, the temperature detector (2) being arranged on burner hearth (1), is arranged in pot
Automatic regulating valve (4) on furnace drum (3) water inlet pipe, the liquid level detector (5) being arranged on boiler drum (3), pressure detecting
Device (6), blow valve (7) and safety regulating valve (8), it is characterised in that: the temperature detector (2), the liquid level detector (5)
And electric signal is connected to the respective input of the controller to the pressure detector (6) respectively, the automatic regulating valve (4) and
The blow valve (7) is connected to the corresponding output end of the controller；
The safety regulating valve (8) includes valve body (9)；Valve body (9) bottom offers valve port (14), valve body (9) side
Wall lower end offers steam drain (15), and valve body (9) top is installed with valve deck (16)；Valve body (9) inner cavity is equipped with valve rod
(10)；It is arranged with spool (12) below the valve rod (10), it is fixed in the valve rod (10) bottom end below the spool (12)
Have supporting plate (18), the spool (12) is in contact with the supporting plate (18), and the spool (12) abuts against with the valve port (14)；
Valve rod (10) upper end is installed with spring retainer button (17)；Spring (11), the spring are also arranged on the valve rod (10)
(11) between the spring retainer button (17) and the spool (12), spring (11) bottom end and the spool (12) are solid
Fixed connection, the top of the spring (11) is buckled (17) with the spring retainer and is abutted；Valve rod (10) top passes through the valve
It covers (16)；It is additionally provided with gag lever post (13) above the spring retainer button (17), the shaft (19) of the gag lever post (13) is in water
The valve body (9) side wall and valve rod (10) square are sequentially passed through upwards, and the head (20) of the gag lever post (13) is fitted in described
On the outer surface of valve body (9) side wall；The valve deck (16) is fixedly connected by bolt (21) with the valve body (9)；The valve deck
(16) periphery that lower surface is located at the valve rod (10) is equipped with baffle (22).
2. a kind of boiler protection control system according to claim 1, it is characterised in that: the spool (12) and the valve
The position that the position and the spool (12) that mouth (14) is in contact are in contact with the supporting plate (18) is equipped with refractory seals pad
(23)。
3. a kind of boiler protection control system according to claim 2, it is characterised in that: the head of the gag lever post (13)
(20) position that the position and the valve deck (16) being in contact with the valve body (9) are contacted with the valve body (9) is equipped with sealing
It pads (24).
4. a kind of boiler protection control system according to claim 2, it is characterised in that: the valve rod (10) and the support
Plate (18) is threadably secured connection.
5. a kind of boiler protection control system according to claim 2, it is characterised in that: the shaft of the gag lever post (13)
(19) it is equipped with external screw thread, valve body (9) side wall offers and the external screw thread in the position that the gag lever post (13) passes through
Adaptable internal screw thread.
6. a kind of boiler protection control system according to claim 1, it is characterised in that: valve rod (10) top passes through
It is threaded with handle (25).
7. a kind of boiler protection control system according to claim 1, it is characterised in that: the controller is using programmable
Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911781.9A CN106568076B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911781.9A CN106568076B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106568076A CN106568076A (en) | 2017-04-19 |
| CN106568076B true CN106568076B (en) | 2019-04-12 |
Family
ID=58533347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911781.9A Expired - Fee Related CN106568076B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106568076B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577965B (en) * | 2020-04-23 | 2022-05-13 | 大唐长春第三热电厂 | Coal mill hot air inserting plate door mechanical limiting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203176523U (en) * | 2013-01-28 | 2013-09-04 | 苏州宇东暖通技术有限公司 | Valve with stop pin |
| CN104329497A (en) * | 2014-08-30 | 2015-02-04 | 中国科学院等离子体物理研究所 | Electromagnetic pressure relief valve |
| CN204176050U (en) * | 2014-04-18 | 2015-02-25 | 浙江富羽阀门制造有限公司 | Novel full copper safety valve |
| CN105257888A (en) * | 2015-10-30 | 2016-01-20 | 重庆市界石燃气设备有限公司 | Emergency cutoff valve for fuel gas pipeline |
| CN105402480A (en) * | 2015-12-08 | 2016-03-16 | 中国西电电气股份有限公司 | Pressure relief valve |
| CN205173613U (en) * | 2015-08-19 | 2016-04-20 | 北京卓奥阀业有限公司 | Dynamic balance electrical control valve with it is irrelevant with pressure |
| CN206160091U (en) * | 2016-10-18 | 2017-05-10 | 天津市华诺盛源科技有限公司 | Industrial boiler safety autonomous system |
-
2016
- 2016-10-18 CN CN201610911781.9A patent/CN106568076B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203176523U (en) * | 2013-01-28 | 2013-09-04 | 苏州宇东暖通技术有限公司 | Valve with stop pin |
| CN204176050U (en) * | 2014-04-18 | 2015-02-25 | 浙江富羽阀门制造有限公司 | Novel full copper safety valve |
| CN104329497A (en) * | 2014-08-30 | 2015-02-04 | 中国科学院等离子体物理研究所 | Electromagnetic pressure relief valve |
| CN205173613U (en) * | 2015-08-19 | 2016-04-20 | 北京卓奥阀业有限公司 | Dynamic balance electrical control valve with it is irrelevant with pressure |
| CN105257888A (en) * | 2015-10-30 | 2016-01-20 | 重庆市界石燃气设备有限公司 | Emergency cutoff valve for fuel gas pipeline |
| CN105402480A (en) * | 2015-12-08 | 2016-03-16 | 中国西电电气股份有限公司 | Pressure relief valve |
| CN206160091U (en) * | 2016-10-18 | 2017-05-10 | 天津市华诺盛源科技有限公司 | Industrial boiler safety autonomous system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106568076A (en) | 2017-04-19 |
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Granted publication date: 20190412 |