CN207229852U - For the safety signal valve of ash to be put under the serious dust stratification state of dust collector ash hopper automatically - Google Patents
For the safety signal valve of ash to be put under the serious dust stratification state of dust collector ash hopper automatically Download PDFInfo
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- CN207229852U CN207229852U CN201720857048.3U CN201720857048U CN207229852U CN 207229852 U CN207229852 U CN 207229852U CN 201720857048 U CN201720857048 U CN 201720857048U CN 207229852 U CN207229852 U CN 207229852U
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- 239000000428 dust Substances 0.000 title claims abstract description 98
- 238000013517 stratification Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000013461 design Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000001727 in vivo Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 abstract description 2
- 239000002956 ash Substances 0.000 description 128
- 238000010586 diagram Methods 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A kind of safety signal valve for being used under the serious dust stratification state of dust collector ash hopper put ash automatically of the utility model offer, is installed on a dust leg road, which has the ash releasing tube stretched into outside a pipeful of an ash inlet tube in portion in vivo and stretching bucket body；There is the bucket body design to carry material position and high charge level early warning material position；The ash inlet tube is carried between material position and high charge level early warning material position positioned at the design；The safety signal valve includes：It is fixedly arranged on a detection mouth flange of the mouth of pipe of ash releasing tube；An elastic pressure assembly affixed with the detection mouth flange；One door rod, to close a valve deck of the mouth of pipe, the other end is connected with the elastic pressure assembly for its one end connection.Dust leg road can be coordinated easily to judge that dust collector ash hopper is to be in normal condition or abnormality.And can be in the automatic removing dust after the grey bearing capacity of deduster design storage, while realize the sound-light alarm under the accident dust stratification state of deduster.
Description
Technical field
It the utility model is related to environmental technology field, more particularly to cleaner, and in particular to one kind is used for deduster ash
Automatically the safety signal valve of ash is put under the serious dust stratification state that struggles against.
Background technology
Showing for the of short duration dust stratification of ash bucket occurs often because of ash discharge failure in the dust collector ash hopper that thermal power plant is equipped with often
As, this belongs to normal phenomenon, as long as the storage ash capacity that general dust stratification allows in dust collector ash hopper, and dust stratification duration correspondence is extensive
In the time range of multiple normal ash disposal, it would not damage to deduster.Therefore dust collector ash hopper dust stratification causes to endanger to deduster
Harmful case, is entirely because troubleshooting not in time, makes dust stratification inside dust collector ash hopper exceed deduster design permission
Storage capacity.
It is domestic that the security incident caused by the serious dust stratification of dust collector ash hopper repeatedly occurs.Such as：Hubei Pu in 2005
No. 2 electric precipitator " 1.1 " total collapse accidents of boundary Power Plant No.1 unit (300,000 kilowatts)；The second thermoelectricity of the packet header of the Inner Mongol in 2005
One electric field " 3.20 " ash bucket total collapse accident of factory No. 2 units (200,000 kilowatts) electric precipitator；Inner Mongol Huo Mei groups in 2005
No. 3 unit " 4.9 " ash bucket case accidents of one phase of power plant for self-supply of Hong Junlv electricity companies；2006 time electricity international Anhui Chizhou City, nine grey hair
Electric No. 2 unit electric precipitator " 3.14 " cave-in accidents of Co., Ltd；The safe and sound Iron And Steel Co., Ltd in Tangshan " 9.23 " electricity removes within 2014
Dirt device ash bucket cave-in accident etc..Above-mentioned its inducement of startling accident can all be attributed to the accident dust stratification of deduster and not and
When deashing.
Domestic thermal power plant deduster judges whether the technological means of dust stratification mainly has three aspects for inside at present：Deduster ash
The high charge level switch that struggles against judges；Deduster ash disposal system operating parameter indirect discrimination；Measure verification is disassembled in maintenance.
The factor that ash disposal system operating parameter indirect discrimination influences is very much, and needs the comparison of longtime running parameter, has
There is very big hysteresis quality, it is impossible to find dust stratification hidden danger in time.The feelings that measure verification often has occurred and that in accident are disassembled in maintenance
Under condition, that takes has the interim measure of certain risk and damaging, is not the technical measures of equipment normal operation.So
Mainly choose in the industry at present ash bucket high charge level switch judge measure judge inside deduster whether dust stratification.
Generally switched at this stage using high charge level and judge to coordinate artificial accident cinerary device serious inside deduster to handle
Dust stratification failure, the premise of such a mode is will be using ash bucket high charge level switching signal as operation foundation, if high charge level switch letter
Number go wrong, then this mode can not just work normally.In addition, when high charge level switching signal fails, not only cannot and
When process accident hidden danger, accident potential cannot be judged whether in time by also resulting in staff, this is also to cause domestic hair
The key technology factor of the serious dust stratification accident of raw deduster.
As shown in Figure 1, existing dust collector ash hopper when on ash bucket high charge level switch 01 alarm when, it is necessary to which ash bucket is opened manually
The urgent cinerary device 02 of lower part accident, carries out urgent ash discharge, if carry out accident promptly puts ash and fully relies on high charge level switch 01
Single source signal.
In ash bucket high charge level switch type selecting, since radio frequency admittance material level indicator is relatively economical, reliable, for this reason, general
Time design selection using radio frequency admittance material level indicator.Theoretically, radio frequency admittance material level indicator uses in design
Advanced anti-adhesive circuit, using the measurement of many reference amounts, wherein by using exchange phase demodulation sampler, solves from mathematical theory
Bridging problem on switch.But in dust collector ash hopper in adverse circumstances, radio frequency admittance material level indicator still inevitably goes out
Existing false alarm and damage, exactly because also false alarm takes place frequently radio frequency admittance material level indicator in practical applications, it is easy to operation
Administrative staff produce the misleading in understanding.In addition, radio frequency admittance level-sensing device needs to debug before use, when debugging, is needed by having
Grey and ashless two states, ability accurate calibration level-sensing device, so, in deduster ash disposal system existing defects, such as ash disposal
When design conveying capacity deficiency, deduster air flow method are uneven, it will make the presence of very big wind in ash disposal system operational process
Dangerous hidden danger.If deduster is run in the case of there are hidden danger for a long time, service personnel cannot in time have found and exclude to ask again
Topic, the long-term accumulation of problem, finally will result in serious harm.The country has many dedusters serious product occur going into operation in 1 year
Grey failure, mainly caused by exactly above-mentioned reason.
With the constantly improve of passive nucleon material-level measure technological means, passive nuclear level sensing device has obtained more and more wider
General use.But for passive nuclear level sensing device, equally there is also the possibility for breaking down and failing, in addition, passive nucleon
Level-sensing device also without by the test and verification under the state of emergency, so, even if being led using passive nuclear level sensing device instead of radio frequency
Level switch of receiving can not avoid deduster that serious dust stratification harm occurs completely.
Thus, ash bucket dust stratification can be judged accurately, conveniently, reliably, in time by how realizing, and safe and simple, effective
The serious dust stratification accident potential of processing deduster is the important topic of urgent need to resolve in the industry.
Utility model content
In view of the deficiency of the prior art, the purpose of this utility model is to provide a kind of tight for dust collector ash hopper
Automatically the safety signal valve of ash is put under weight dust stratification state, can be matched somebody with somebody with detection mouth of the device in the lower end in a special dust leg road
Close dust leg road and easily judge that dust collector ash hopper is to be in normal condition or abnormality.And can be beyond deduster
After the grey bearing capacity of design storage, dust is higher by after normal storage ash quantity in ash bucket, dust stratification is achieved in pair with automatic removing dust
The defencive function of deduster；Meanwhile during ash discharge, can also be by touching contact-making switch, to related Control System transmission switching value electricity
Signal, realizes the sound-light alarm under the accident dust stratification state of deduster.
In order to achieve the above object, the technical scheme adopted by the utility model is that：
For putting the safety signal valve of ash under the serious dust stratification state of dust collector ash hopper automatically, a dust leg road is installed on, should
Dust leg road has the ash releasing tube stretched into outside a pipeful of an ash inlet tube in portion in vivo and stretching bucket body；The bucket body has one to set
Meter carrying material position and high charge level early warning material position；The ash inlet tube positioned at the design carry material position and high charge level early warning material position it
Between；
The safety signal valve includes：
It is fixedly arranged on a detection mouth flange of the mouth of pipe of ash releasing tube；
An elastic pressure assembly affixed with the detection mouth flange；
One door rod, to close a valve deck of the mouth of pipe, the other end connects with the elastic pressure assembly for its one end connection
Connect.
Further, the elastic pressure assembly includes a spring support and a spring；
The spring support includes a rear cover and connects some installation upright bars of rear cover and detection mouth flange；The rear cover with
A fixed guiding and limiting plate between detection mouth flange；It is oriented to and limiting plate is formed with a pilot hole, the door rod has one the
One retainer, the door rod pass through the pilot hole, and first retainer is between guiding and limiting plate and rear cover；Cap-shaped afterwards
The second retainers of Cheng Youyi；The spring pocket is arranged on door rod, and both ends are stopped at foregoing first retainer and the second stop respectively
Portion.
Further, the rear cover, detection mouth flange, guiding and limiting plate are parallel between each other.
Further, second retainer encloses for an adjustment, and the adjustment snare is arranged on the door rod, and outside passes through spiral shell
Line structure is connected with the mounting hole that rear cover is formed, and has been internally formed spring locking groove.
Further, it is provided with and can be contacted by mobile-initiated the one of first retainer on the guiding and limiting plate
Switch.
Further, the spring is compression spring.
Further, first retainer is an annular protrusion.
Further, the door rod, pilot hole and mounting hole are coaxial.
By taking above-mentioned technical proposal, ash inlet tube is highly high less than ash bucket design carrying material position, i.e., grey position limiting altitude
In high charge level early warning material position, i.e. high charge level switch height.It is under normal circumstances, high after dust stratification first reaches high charge level switch height
Level switch is alarmed, at this point it is possible to pass through conventional means ash discharge.Once high charge level switch fault, fails to alarm, grey position is after of continuing rising
Height, reaches the nozzle position of ash inlet tube, under the action of dust stratification tension force, you can dust stratification is discharged by dust leg road, is touched at the same time
Send out contact-making switch alarm.
In this way, the safety signal valve of the utility model matches somebody with somebody a unification pipeline structure, but very reliable fault row can be played
Remove and forewarning function, greatly improve the safety and stability of ash bucket, and low cost, can't additionally increase excessive load, keep away
Exempt from, because adding excessive overweight troubleshooting element, to increase existing equipment loading effect equipment normal operation.In addition, this practicality is new
The ash discharge pre-alarming system that the ash bucket of type is formed has high stability in itself, is not in failure substantially, and because its work
State is capable of the inspection of simplicity, therefore by periodic inspection, can eliminate the possibility of failure.
Brief description of the drawings
Fig. 1 is the structure diagram of existing dust collector ash hopper in background technology.
Fig. 2 is the structure diagram of ash bucket in one embodiment of the utility model.
Fig. 3 is the installation direction schematic diagram of the ash inlet tube of ash bucket in one embodiment of the utility model.
Fig. 4 is the structure diagram of ash releasing tube and safety signal valve in one embodiment of the utility model.
Fig. 5 is the main structure figure of valve deck in safety signal valve in one embodiment of the utility model.
Fig. 6 is the side block diagram of valve deck in safety signal valve in one embodiment of the utility model.
Fig. 7 is the structure diagram for installing upright bar in one embodiment of the utility model in safety signal valve.
Fig. 8 is the structure diagram of door rod in safety signal valve in one embodiment of the utility model.
Fig. 9 is the sectional structure chart for adjusting circle in one embodiment of the utility model in safety signal valve.
Figure 10 is the main structure figure for adjusting circle in one embodiment of the utility model in safety signal valve.
Figure 11 is the side block diagram of rear cover in safety signal valve in one embodiment of the utility model.
Figure 12 is the main structure figure of rear cover in safety signal valve in one embodiment of the utility model.
Figure 13 is the side block diagram of guiding and limiting plate in safety signal valve in one embodiment of the utility model.
Figure 14 is guiding in safety signal valve in one embodiment of the utility model and the main structure figure of limiting plate.
Embodiment
Illustrate the operation principle of the utility model first：
Dust collector ash hopper is as follows with characteristic by its structure and working environment：Be first deduster in operation, such as ash bucket
Can be in negative pressure state when belonging to ashless empty bucket-shaped state, inside ash bucket, this also mean that at this time if open ash bucket with outside
The hole that portion's air is connected, extraneous air can be entered inside ash bucket under suction function by hole.Secondly dust collector ash hopper
During in dust stratification state, since the mobility of ash is larger, there are certain fluid properties, grey tension force promotes grey from ash bucket and outer
What the hole that portion's air is connected outwards sprayed, and ash accumulation more than hole is higher, and grey injection power is also bigger.
Using the characteristic of above-mentioned dust collector ash hopper, highly exceed normal storage in the mouth of pipe of one ash inlet tube of ash bucket indoor design
The dust leg road of grey height, when dust accretions highly exceed the mouth of pipe height of dust leg road ash inlet tube, dust can pass through import
The mouth of pipe of pipe automatically flows into dust leg road, with piling height increase grey in dust leg road, by the accumulation pressure of ash, valve deck
Promote door rod to open valve deck, start automatic removing dust.After dust stratification is disposed in ash bucket, by the thrust and ash bucket of spring
The suction of interior negative pressure can be such that valve deck closes automatically.When valve deck is automatically turning under the action of dust, door rod movement, door rod are driven
On the first retainer (can be considered a protrusion) touch contact-making switch, contact-making switch to a control system transmit switching value telecommunications
Number, control system is, for example, dcs (DCS), and control system prompts work on the spot people in time by sound-light alarm
There is serious dust stratification failure, it is necessary to be handled immediately in member's ash bucket.Thus alarm can be achieved and extends the function of processing time,
Staff receives the report for police service, and can adjust ash disposal system or take urgent manually ash discharge to remove a hidden danger.
As above-mentioned, normal ash bucket storage ash is that deduster runs necessary function, but the deduster of improper storage ash is serious
Dust stratification is the accident for needing to take precautions against, for this reason, when ash bucket storage ash reaches improper storage ash condition, grey storing highly in ash bucket
(ash position height), is typically that designer carries out load, the design input condition of structure design, utilizes the side of this design input
Boundary's condition, sets high grey position ash exhauster on ash bucket.The utility model is improved on basis herein.Below in conjunction with this
Attached drawing in utility model embodiment, carries out the technical scheme in the embodiment of the utility model clear, complete description.
As shown in Fig. 2, ash bucket in one embodiment, including：
Bucket body 1, has ash bucket design carrying material position and high charge level early warning material position, the two material positions are all known design ginsengs
Number, each ash bucket can determine the two material positions during redesigning, then arrange corresponding device；
Dust leg road 2, has and stretches into the ash inlet tube 21 inside bucket body and the ash releasing tube 22 outside stretching bucket body；Dust leg leads to
2 can be fixedly arranged on bucket body 1 by flange arrangement, can also be fixedly arranged on bucket body for example, by the mode of welding.
Wherein, ash inlet tube 21 is located between ash bucket design carrying material position and high charge level early warning material position；The mouth of pipe of ash releasing tube 22
Closed by safety signal valve 3.The mouth of pipe height ash bucket design carrying material position of ash inlet tube, it is high that dust stratification first reaches high charge level switch
Degree, high charge level alarm, if high charge level switch fault, grey position continues to raise, and reaches ash inlet tube position, there is foregoing operation principle
Understanding, dust stratification can be discharged by dust leg road, in discharge process, the mouth of pipe of the open-top ash releasing tube by safety signal valve closure.Separately
Outside, airborne dust is lowered in ash releasing tube major requirement as far as possible, while away from the appropriate height in ground, easy to observe, overhaul and ship ash.
Ash releasing tube can use horizontally disposed mode as shown in the figure, in a further embodiment, can also use and level
Direction forms 0 ° of downward mode to 30 ° of angles and arranges, dust stratification is discharged at the same time by dead weight.
As shown in figure 4, this application claims safety signal valve specifically include：
It is fixedly arranged on the detection mouth flange 31 of the mouth of pipe of ash releasing tube 22；
The affixed elastic pressure assembly with detection mouth flange 31；
Door rod 34, to close the valve deck 31 of the mouth of pipe, the other end is connected with elastic pressure assembly for its one end connection.
Specifically, elastic pressure assembly includes spring support and spring 33；
Spring support includes rear cover 35 and connects some installation upright bars 37 of rear cover 35 and detection mouth flange 31；Rear cover 35 with
Fixed guiding and limiting plate 36 between detection mouth flange 31；It is oriented to and limiting plate 36 has one formed with a pilot hole, door rod 34
First retainer, door rod 34 pass through the pilot hole, and the first retainer is between guiding and limiting plate 36 and rear cover 35；Rear cover 35
Formed with one second retainer；Spring 33 is sheathed on door rod 34, and both ends are stopped at foregoing first retainer and second stop respectively
Dynamic portion.
As figure, rear cover 35, detection mouth flange 31, guiding and limiting plate 36 are parallel between each other.
Second retainer is preferably to adjust circle 39, and adjustment circle 39 is sheathed on door rod 34, and outside passes through helicitic texture and rear cover
35 mounting holes formed screw connection, have been internally formed spring locking groove.Adjustment circle 39 can adjust the pressure of spring 33 by rotating
Contracting degree, thus adjusts force of the door rod 34 to valve deck 31.
Being provided with guiding and limiting plate 36 can be by the mobile-initiated contact-making switch 38 of the first retainer.Connect to protect
Switch 38 is touched, further includes the protecting cover 310 for being fixedly arranged on guiding and limiting plate 36, thus completely cuts off contact-making switch and external environment condition,
Avoid reporting by mistake and damage.
Wherein, spring is compression spring.First retainer is an annular protrusion.Door rod, pilot hole and mounting hole are coaxial.
In order to make those skilled in the art become apparent from understanding the concrete structure of safety signal valve in the present embodiment, pass through Fig. 5
Each component is illustrated to Figure 14.
In addition, with reference to figure 3, the mouth of pipe direction of ash inlet tube is backwards to the direction that ash bucket inside smoke flows；The mouth of pipe of ash inlet tube
For downward inclined tube mouth.It can thus prevent the mouth of pipe of ash inlet tube from causing coal ash directly because air-flow enters into ash in face of flue gas
Pipe, angle are that the ash that deduster falls in order to prevent falls directly into ash inlet tube downwards, can be to greatest extent by this structure design
Ground allows ash accumulation to flow into ash inlet tube after getting up, and avoiding dust stratification height from not yet reaching high charge level switch alarm height has grey entrance
Ash inlet tube.
It is very one big due in deduster steel construction load with reference to above-described embodiment and the described structure of relevant drawings
It is the storage ash load designed under the conditions of the limiting altitude of grey position to divide.Highly less than grey position limiting altitude, it is located at the mouth of pipe of ash inlet tube
Between high charge level switch height and grey position limiting altitude.Process is first to reach high charge level switch height, high charge level alarm, if high
Level switch failure, grey position continue to raise, and reach ash inlet, and device ash discharge is simultaneously alarmed, if still exclude not in time, then ash
Position will reach and exceed the given grey position limiting altitude of design, will overload at this time, accident just occurs.
When high charge level switch is not reaching in normal condition ash bucket ash position, by pulling door rod to drive valve deck to make inside ash bucket
It is in communication with the outside by dust leg road, can substantially observes that extraneous air to the air draught of ash bucket inside, may determine that ash bucket at this time
It is internal normal.When limiting altitude of the dust stratification more than the grey height of normal storage, ash meeting nature is flowed into dust leg road, with dust
Accumulation, promote valve deck to open, while touch contact-making switch, while ash bucket realizes automatic removing dust, transmitted for remote monitoring
Signal, so as to fulfill ash and warning function is put under the serious dust stratification state of deduster automatically.
In the state of valve deck does not automatically turn on, Daily Round Check can cut off contact-making switch power supply on the spot, artificial to pull
Door rod, checks ash bucket inner product ash state, such as extraneous air since suction function is the air-breathing into ash bucket, then may determine that ash bucket
Storage grey state in inside is normal.Resume contacts Switching Power Supply after inspection.
Obviously, described embodiment is only the utility model part of the embodiment, instead of all the embodiments.It is based on
Embodiment in the utility model, those of ordinary skill in the art are obtained all without making creative work
Other embodiment, shall fall within the protection scope of the present invention.
Claims (8)
1. the safety signal valve for putting ash under the serious dust stratification state of dust collector ash hopper automatically, is installed on a dust leg road, this is put
Ash pipe road has the ash releasing tube stretched into outside a pipeful of an ash inlet tube in portion in vivo and stretching bucket body；The bucket body has a design
Carry material position and high charge level early warning material position；The ash inlet tube is carried between material position and high charge level early warning material position positioned at the design；
It is characterised in that it includes：
It is fixedly arranged on a detection mouth flange of the mouth of pipe of ash releasing tube；
An elastic pressure assembly affixed with the detection mouth flange；
One door rod, to close a valve deck of the mouth of pipe, the other end is connected with the elastic pressure assembly for its one end connection.
2. being used under the serious dust stratification state of dust collector ash hopper the safety signal valve for putting ash automatically as claimed in claim 1, it is special
Sign is that the elasticity pressure assembly includes a spring support and a spring；
The spring support includes a rear cover and connects some installation upright bars of rear cover and detection mouth flange；The rear cover and detection
A fixed guiding and limiting plate between mouth flange；It is oriented to and limiting plate is formed with a pilot hole, the door rod has one first to stop
Dynamic portion, the door rod pass through the pilot hole, and first retainer is between guiding and limiting plate and rear cover；Rear cover formed with
One second retainer；The spring pocket is arranged on door rod, and both ends are stopped at foregoing first retainer and the second retainer respectively.
3. being used under the serious dust stratification state of dust collector ash hopper the safety signal valve for putting ash automatically as claimed in claim 2, it is special
Sign is that the rear cover, detection mouth flange, guiding and limiting plate are parallel between each other.
4. being used under the serious dust stratification state of dust collector ash hopper the safety signal valve for putting ash automatically as claimed in claim 2, it is special
Sign is that second retainer encloses for an adjustment, and the adjustment snare is arranged on the door rod, and outside is by helicitic texture with after
Cap-shaped into a mounting hole connection, be internally formed spring locking groove.
5. being used under the serious dust stratification state of dust collector ash hopper the safety signal valve for putting ash automatically as claimed in claim 2, it is special
Sign is that being provided with the guiding and limiting plate can be by a mobile-initiated contact-making switch for first retainer.
6. being used under the serious dust stratification state of dust collector ash hopper the safety valve for putting ash automatically as claimed in claim 2, its feature exists
In the spring is compression spring.
7. being used under the serious dust stratification state of dust collector ash hopper the safety valve for putting ash automatically as claimed in claim 2, its feature exists
In first retainer is an annular protrusion.
8. being used under the serious dust stratification state of dust collector ash hopper the safety valve for putting ash automatically as claimed in claim 2, its feature exists
In the door rod, pilot hole and mounting hole are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857048.3U CN207229852U (en) | 2017-07-14 | 2017-07-14 | For the safety signal valve of ash to be put under the serious dust stratification state of dust collector ash hopper automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857048.3U CN207229852U (en) | 2017-07-14 | 2017-07-14 | For the safety signal valve of ash to be put under the serious dust stratification state of dust collector ash hopper automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229852U true CN207229852U (en) | 2018-04-13 |
Family
ID=61853510
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720857048.3U Active CN207229852U (en) | 2017-07-14 | 2017-07-14 | For the safety signal valve of ash to be put under the serious dust stratification state of dust collector ash hopper automatically |
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| CN (1) | CN207229852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269897A (en) * | 2017-07-14 | 2017-10-20 | 大唐环境产业集团股份有限公司 | For the automatic safety signal valve for putting ash under the serious dust stratification state of dust collector ash hopper |
-
2017
- 2017-07-14 CN CN201720857048.3U patent/CN207229852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269897A (en) * | 2017-07-14 | 2017-10-20 | 大唐环境产业集团股份有限公司 | For the automatic safety signal valve for putting ash under the serious dust stratification state of dust collector ash hopper |
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