CN106369583A - Protection device of boiler - Google Patents
Protection device of boiler Download PDFInfo
- Publication number
- CN106369583A CN106369583A CN201610911782.3A CN201610911782A CN106369583A CN 106369583 A CN106369583 A CN 106369583A CN 201610911782 A CN201610911782 A CN 201610911782A CN 106369583 A CN106369583 A CN 106369583A
- Authority
- CN
- China
- Prior art keywords
- valve
- described valve
- protection device
- valve body
- boiler
- 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.)
- Granted
Links
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
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- 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
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
-
- 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 protection device of a boiler. The protection device comprises a controller, a temperature detector, an automatic adjusting valve, a liquid level detector, a pressure detector, an emptying valve and a safety adjusting valve, wherein the temperature detector, the liquid level detector and the pressure detector are in electric signal connection with a corresponding input end of the controller; the automatic adjusting valve and the emptying valve are connected with a corresponding output end of the controller; a valve hole is formed in the bottom of a valve body of the safety adjusting valve; a steam exhaust hole is formed in the side wall of the valve body of the safety adjusting valve; a limiting baffle plate is arranged at the upper end of an inner cavity of the valve body of the safety adjusting valve; the upper end of a valve rod penetrates through the limiting baffle plate; a valve core, which is propped against the steam exhaust hole, is arranged at the bottom of the valve rod in a sleeving manner; a spring is further arranged on the valve rod in a sleeving manner; the spring is arranged between the limiting baffle plate and the valve core; and a limiting rod horizontally penetrates through the side wall of the valve body and the upper end of the valve rod. According to the invention, the protection device has the advantages that the feedback and regulation are timely, the structure of a safety valve is simple, and the safety performance is high.
Description
Technical field
The invention belongs to boiler safety control field, especially relates to a kind of boiler protection device.
Background technology
Boiler is used a kind of common energy device in commercial production, in boiler operatiopn, the safety prison of boiler
Survey and control it is critical that.Often automatic detection and control system imperfection, feedback not in time in existing boiler, and its
Safety control measures are relatively weak, and especially as the boiler safety valve of boiler important component, relief valve is used for controlling pressure
Power is less than setting value, can run important protective effect to personal safety and equipment.Common relief valve has Weight type and bullet
The various structures such as spring formula, can according to set pressure value automatically be adjusted, but existing relief valve often exist complex structure,
Ineffective, the artificial maintenance of take-off is inconvenient, operator carry out easily causing the problems such as by mistake touch during other associative operations.
Content of the invention
In view of this, the invention is directed to a kind of boiler protection device, to solve security monitoring in prior art
System imperfection, feedback regulation are not in time, safety valve structure is complicated, ineffective, the artificial maintenance of take-off is inconvenient, easily touch by mistake etc. asks
Topic.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of boiler protection device, including controller, the temperature detector being arranged on burner hearth, is arranged on boiler-steam dome and enters
Automatic regulating valve on water pipe, the liquid level detector being arranged on boiler-steam dome, pressure detector, atmospheric valve and safety are adjusted
Valve, the signal of telecommunication is connected to described controller respectively for described temperature detector, described liquid level detector and described pressure detector
Respective input, described automatic regulating valve and described atmospheric valve are connected to the corresponding output end of described controller；
Described safety regulating valve includes valve body；Described body base offers valve port, and described body wall lower end offers
Steam drain, described body cavity upper end horizontal direction is provided with postive stop baffle；Described body cavity is provided with valve rod, on described valve rod
End is through described postive stop baffle；The interview of described valve rod is arranged with valve element, is installed with described valve rod bottom below described valve element
Supporting plate, described valve element is contacted with described supporting plate, and described valve element is abutted against with described valve port；Bullet is also arranged with described valve rod
Spring, described spring bottom end is fixedly connected with described valve element, and described spring top is abutted with the lower surface of described postive stop baffle；Described
Valve stem tip passes through described valve body top board；The top of described postive stop baffle is additionally provided with a gag lever post, and the shaft of described gag lever post exists
Described body wall and described valve rod are sequentially passed through on horizontal direction, the head of described gag lever post is fitted in described body wall
On outer surface.
Further, described valve element is contacted with described valve port position and the position that described valve element is contacted with described supporting plate
Put and be equipped with refractory seals pad.
Further, the position that the head of described gag lever post is contacted with described valve body is provided with sealing gasket.
Further, described valve rod is threadably secured with described supporting plate and is connected.
Further, the shaft of described gag lever post is provided with external screw thread, and described body wall passes through in described gag lever post
Position offers the female thread being adapted with described external screw thread.
Further, the position that described body cavity is located above described valve element is additionally provided with a pair spacing projection.
Further, described valve stem tip is provided with handle.
Further, described controller adopts programmable control unit.
With respect to prior art, a kind of boiler protection device described in the invention has the advantage that
(1) the invention security monitoring means are perfect, feedback regulation in time, dependency number in boiler is gathered by controller
According to, and real-time regulation is carried out to it, automatic regulating valve can timely supplement water level, and atmospheric valve can be different in boiler-steam dome pressure
Carry out quick timely pressure release, it is to avoid security incident occurs when often increasing；The structure of relief valve is simple, and take-off is sensitive, works as valve port
Pressure reach certain value be that valve element pressuring spring moves upwards, and valve port is connected with steam drain, realizes pressure regulation；Due to gag lever post
Presence, valve rod can keep fixed position motionless, effectively prevent and touch valve rod by mistake and lead to valve rod and valve element displacement, affect boiler
Normal operation situation occur, safe；Manually bleed off pressure when needing or check that can valve element proper motion on vertical direction
When it is only necessary to pull out gag lever post, pull-up valve rod, the supporting plate of valve rod bottom can carry movable valve plug to move up with valve rod, convenient fast
Prompt.
(2) in the invention, valve element is contacted with valve port position and the position that valve element is contacted with supporting plate are equipped with resistance to
The sealing gasket of high temperature, the position setting sealing gasket that the head of gag lever post is contacted with valve body, effectively prevent the generation of gas leak phenomenon；
Valve rod is threadably secured with supporting plate and is connected, and also by threadeding between gag lever post and body wall, assembly and disassembly is convenient, knot
Structure is stable.
Brief description
The accompanying drawing constituting the part of the invention is used for providing the invention is further understood, and the present invention creates
The schematic description and description made is used for explaining the invention, does not constitute the improper restriction to the invention.?
In accompanying drawing:
Fig. 1 is the structural representation of the invention；
Fig. 2 is the structural representation of the relief valve described in the invention.
Description of reference numerals:
1- burner hearth；2- temperature detector；3- boiler-steam dome；4- automatic regulating valve；5- liquid level detector；6- pressure detecting
Device；7- atmospheric valve；8- safety regulating valve；9- valve body；10- valve rod；11- spring；12- valve element；13- gag lever post；14- valve port；15-
Steam drain；16- postive stop baffle；The spacing projection of 17-；18- supporting plate；19- shaft；20- head；21- elevated-temperature seal pad；22- is spacing
Baffle plate；23- handle.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can
To be mutually combined.
In the description of the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is the restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning in the invention for the term.
To describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of boiler protection device, as shown in figure 1, include Programmable Logic Controller, the temperature detector being arranged on burner hearth 1
2nd, the automatic regulating valve 4 being arranged on boiler-steam dome 3 water inlet pipe, the liquid level detector 5 being arranged on boiler-steam dome 3, pressure inspection
Survey device 6, atmospheric valve 7 and safety regulating valve 8；The signal of telecommunication connects respectively for temperature detector 2, liquid level detector 5 and pressure detector 6
In the respective input of controller, automatic regulating valve 4 and atmospheric valve 7 are connected to the corresponding output end of controller；
As shown in Fig. 2 described safety regulating valve 8 includes valve body 9；Valve body 9 bottom offers valve port 14, under valve body 9 side wall
End offers steam drain 15, and valve body 9 inner chamber upper end horizontal direction is provided with postive stop baffle 16；Set on valve body 9 inner chamber vertical direction
There is valve rod 10, valve rod 10 upper end passes through postive stop baffle 16；Valve rod 10 bottom has been threaded connection supporting plate 18；Valve element 12 is sheathed on
Contact on valve rod 10 and with supporting plate 18, valve element 12 can slide on valve rod 10；Valve body 9 inner chamber is located at the position of valve element 12 top
Install a pair spacing projection 17, spacing projection 17 is used for limiting valve element 12 along the ultimate range of valve rod 10 upward sliding；Valve element
12 are adapted with valve port 14, are used for blocking valve port 14；Position and valve element 12 and supporting plate 18 phase that valve element 12 is contacted with valve port 14
The position of contact is equipped with refractory seals pad 21；Spring 11 is also arranged with valve rod 10, spring 11 bottom is fixing with valve element 12
Connect, spring 11 top is abutted with the lower surface of postive stop baffle 16；Valve rod 10 top passes through valve body 9 top board and is connected with handle
23；The top of postive stop baffle 16 is additionally provided with a gag lever post 13, and the shaft 19 of gag lever post 13 passes through valve body 9 side wall in the horizontal direction
And valve rod 10, the shaft 19 of gag lever post 13 is provided with external screw thread, and the position that valve body 9 side wall passes through in gag lever post 13 offers with outward
The female thread that screw thread is adapted；The head 20 of gag lever post 13 is fitted on the outer surface of valve body 9 side wall, the head 20 of gag lever post 13
The position contacting with valve body 9 side wall is provided with sealing gasket.
The specific work process of the present embodiment is as follows:
Temperature detector 2, liquid level detector 5 and pressure detector 6 are by the signal transmission collecting to controller, controller
Program according to editting in advance is monitored to related data, when finding that liquid level is too low, issues order to automatic regulating valve 4
To control liquid level, atmospheric valve 7 can be controlled when internal pressure increases rapidly extremely to carry out quick timely pressure release, it is to avoid occur
Security incident；
In boiler running process, safety regulating valve 8 voluntarily can be adjusted to cavity pressure, when the pressure of valve port 14 reaches
During certain value, valve element 12 pressuring spring 11 can be made to move upwards, valve rod 10 is motionless, due to spring 11 be limited in valve element 12 and
Between postive stop baffle 16, when only reaching certain pressure value, valve element 12 can overcome the position-limiting action of spring 11, pressuring spring
11 move upwards along valve rod 10, and now valve port 14 and steam drain 15 connect, and realize the regulation of pressure；
Gag lever post 13 passes through valve body 9 side wall and valve rod 10, valve rod 10 is fixed on a position, effectively prevent and touch valve by mistake
Bar 10 leads to valve rod 10 and valve element 12 to shift, and is that the normal operation of boiler increased one safety guarantee；Quick manually in needs
It is only necessary to pull out gag lever post 13 when bleeding off pressure, pull valve rod 10, then the supporting plate 18 of valve rod 10 bottom can carry movable valve plug 12 to transport upwards
Dynamic, realize quick steam discharge voltage regulation result；When need check valve element 12 can proper motion when it is only necessary to pull out gag lever post 13, draw
Ovable valve stem 10 see valve element 12 can in the vertical direction proper motion, have or not blocking, the motion phenomenon such as have some setbacks occurs.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all this
Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement made etc., should be included in the invention
Protection domain within.
Claims (8)
1. a kind of boiler protection device, including controller, the temperature detector (2) that is arranged on burner hearth (1), is arranged on boiler vapour
Automatic regulating valve (4) on bag (3) water inlet pipe, the liquid level detector (5) being arranged on boiler-steam dome (2), pressure detector
(6), atmospheric valve (7) and safety regulating valve (8) it is characterised in that: described temperature detector (2), described liquid level detector (5) and
The signal of telecommunication is connected to respective input, described automatic regulating valve (4) and the institute of described controller to described pressure detector (6) respectively
State the corresponding output end that atmospheric valve (7) is connected to described controller；
Described safety regulating valve (8) includes valve body (9)；Described valve body (9) bottom offers valve port (14), described valve body (9) side
Wall lower end offers steam drain (15), and described valve body (9) inner chamber upper end horizontal direction is provided with postive stop baffle (16)；Described valve body
(9) inner chamber is provided with valve rod (10), and described valve rod (10) upper end passes through described postive stop baffle (16)；The lower square set of described valve rod (10)
Be provided with valve element (12), below described valve element, be installed with supporting plate (18) in described valve rod (10) bottom, described valve element (12) with described
Supporting plate (18) contacts, and described valve element (12) and described valve port (14) abut against；Also it is arranged with spring on described valve rod (10)
(11), described spring (11) bottom is fixedly connected with described valve element (12), described spring (11) top and described postive stop baffle
(16) lower surface abuts；Described valve rod (10) top passes through described valve body (9) top board；The top of described postive stop baffle (16) is also
It is provided with a gag lever post (13), the shaft (19) of described gag lever post (13) sequentially passes through described valve body (9) side wall in the horizontal direction
And described valve rod (10), the head (20) of described gag lever post (13) is fitted on the outer surface of described valve body (9) side wall.
2. a kind of boiler protection device according to claim 1 it is characterised in that: described valve element (12) and described valve port
(14) position that the position contacting and described valve element (12) are contacted with described supporting plate (18) is equipped with refractory seals pad
(21).
3. a kind of boiler protection device according to claim 2 it is characterised in that: the head (20) of described gag lever post (13)
The position contacting with described valve body (9) is provided with sealing gasket.
4. a kind of boiler protection device according to any one of Claim 1-3 it is characterised in that: described valve rod (10) with
Described supporting plate (18) is threadably secured connection.
5. a kind of boiler protection device according to claim 4 it is characterised in that: the shaft (19) of described gag lever post (13)
It is provided with external screw thread, the position that described valve body (9) side wall passes through in described gag lever post (13) offers is fitted with described external screw thread phase
The female thread answered.
6. a kind of boiler protection device according to claim 1 it is characterised in that: described valve body (9) inner chamber be located at described
Position above valve element (12) is additionally provided with a pair spacing projection (17).
7. a kind of boiler protection device according to claim 1 it is characterised in that: described valve rod (10) top is provided with handle
(23).
8. a kind of boiler protection device according to claim 1 it is characterised in that: described controller adopts PLC technology
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911782.3A CN106369583B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911782.3A CN106369583B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369583A true CN106369583A (en) | 2017-02-01 |
| CN106369583B CN106369583B (en) | 2019-04-12 |
Family
ID=57894878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911782.3A Active CN106369583B (en) | 2016-10-18 | 2016-10-18 | A kind of boiler protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332510A (en) * | 2019-06-28 | 2019-10-15 | 孙安杰 | A kind of Industrial Boiler |
| CN111577965A (en) * | 2020-04-23 | 2020-08-25 | 大唐长春第三热电厂 | Mechanical limiting device for hot air inserting plate door of coal mill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753692A1 (en) * | 1995-07-10 | 1997-01-15 | Holter Regelarmaturen GmbH & Co. KG | Control system for controlling minimum flow througput and check valve |
| CN2596120Y (en) * | 2003-01-01 | 2003-12-31 | 王宝生 | Self-controlling valve |
| JP2014098544A (en) * | 2007-04-20 | 2014-05-29 | Fisher Controls International Llc | Emergency shutdown safety device |
| CN204105721U (en) * | 2014-08-12 | 2015-01-21 | 天喜控股集团有限公司 | A kind of pressure caution on pressure cooker and audible alarm valve |
| CN205173605U (en) * | 2015-12-07 | 2016-04-20 | 高超 | Boiler safety valve |
| CN206160090U (en) * | 2016-10-18 | 2017-05-10 | 天津市华诺盛源科技有限公司 | A protection device for boiler safety |
-
2016
- 2016-10-18 CN CN201610911782.3A patent/CN106369583B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753692A1 (en) * | 1995-07-10 | 1997-01-15 | Holter Regelarmaturen GmbH & Co. KG | Control system for controlling minimum flow througput and check valve |
| CN2596120Y (en) * | 2003-01-01 | 2003-12-31 | 王宝生 | Self-controlling valve |
| JP2014098544A (en) * | 2007-04-20 | 2014-05-29 | Fisher Controls International Llc | Emergency shutdown safety device |
| CN204105721U (en) * | 2014-08-12 | 2015-01-21 | 天喜控股集团有限公司 | A kind of pressure caution on pressure cooker and audible alarm valve |
| CN205173605U (en) * | 2015-12-07 | 2016-04-20 | 高超 | Boiler safety valve |
| CN206160090U (en) * | 2016-10-18 | 2017-05-10 | 天津市华诺盛源科技有限公司 | A protection device for boiler safety |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332510A (en) * | 2019-06-28 | 2019-10-15 | 孙安杰 | A kind of Industrial Boiler |
| CN110332510B (en) * | 2019-06-28 | 2020-12-25 | 日照亿铭科技服务有限公司 | Industrial boiler |
| CN111577965A (en) * | 2020-04-23 | 2020-08-25 | 大唐长春第三热电厂 | Mechanical limiting device for hot air inserting plate door of coal mill |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106369583B (en) | 2019-04-12 |
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Inventor after: Xie Dimin Inventor after: Wang Hui Inventor before: Wang Hui |