CN101787405B - Automatic protective unit of piston high-temperature explosion-proof imaging device - Google Patents
Automatic protective unit of piston high-temperature explosion-proof imaging device Download PDFInfo
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- CN101787405B CN101787405B CN2009102451739A CN200910245173A CN101787405B CN 101787405 B CN101787405 B CN 101787405B CN 2009102451739 A CN2009102451739 A CN 2009102451739A CN 200910245173 A CN200910245173 A CN 200910245173A CN 101787405 B CN101787405 B CN 101787405B
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Abstract
The invention discloses an automatic protective unit of a piston high-temperature explosion-proof imaging device, comprising a water cooling sleeve arranged on the wall of a furnace, a gate valve, a ball valve and a transmission gear for a mobile high-temperature imaging device, wherein the gate valve, the ball valve and the transmission gear are all mounted outside the water cooling sleeve in sequence. The transmission gear is a piston pusher which comprises a cylindrical cylinder, a hollow cylindrical piston rod, an annular piston and annular cylinder covers, wherein the cylindrical cylinder is axial with the gate valve and the ball valve, the hollow cylindrical piston rod passes through the inside of the cylinder and is axial with the cylinder, the annular piston is arranged between the inside of the cylinder and the outside of the piston rod, and the annular cylinder covers are respectively arranged at both ends of the cylinder. An air inlet channel is arranged inside each cylinder cover, the high-temperature imaging device is arranged inside the piston rod, the front end of the piston rod extends into the furnace, and the back end of the piston rod is arranged outside the cylinder. The inner annular face of the annular piston is fixedly connected with the outer surface of the piston rod, and each cylinder cover is provided with an air inlet hole communicated with the inner space of the cylinder. The automatic protective unit of the piston high-temperature explosion-proof imaging device has the advantages of simple structure, good stability and better explosion-proof and sealing properties.
Description
Technical field
The present invention relates generally to high-temperature explosion-proof imaging device technical field, particularly relates to a kind of high-temperature explosion-proof imaging device automatic safety device.
Technical background
The high-temperature industrial television supervisory system is to be applied to industries such as metallurgy, glass, petrochemical industry, electric power, under severe environment such as high temperature, high dust to stove in situation carry out the remote watch-dog of monitoring in real time.With steel mill's iron-smelting blast furnace is example, and at present the safety guard of high temperature imaging device and securing system have three kinds of insert, slide valve formula and external transmission body formula high temperature pick up camera automatic safety devices.Plug in construction is the imaging device protecting jacket to be inserted in the State of Blast Furnace through ball valve monitor, owing to need manual operation, therefore has the hysteresis problem; In addition, when the needs on-line maintenance, because the pressure in the State of Blast Furnace is malleation (greater than barometric point), extracts protecting jacket the serviceman and close in the process of ball valve, blast furnace gas might leak outside, and therefore exists certain potential safety hazard.Slide valve formula structure is that the pneumatic brake plate valve is installed in imaging device protecting jacket front end, and when abnormal conditions or overtemperature alarm appearred in system, slide valve cut out automatically with protection pick up camera (or other watch-dogs) and is not damaged.To be nothing like ball valve sealing effective but this structure does not also withdraw from the sealing effectiveness of securing system and slide valve automatically, equally also has security hidden trouble.
External transmission body formula high temperature imaging automatic safety device is by the protecting jacket of high temperature imaging device and be used for the transmission mechanism of mobile high temperature imaging device protecting jacket and form.The transmission mechanism of producing both at home and abroad is divided into electric motor driving and air cylinder driven two big classes at present; no matter be pneumatic or electronic transmission body; they all are independent device; be installed in imaging device safety guard next door; be connected with the pick up camera protecting jacket by web plate; transmission mechanism work when unusual or overtemperature alarm appear in system, drive high temperature imaging device protecting jacket withdraws from outside the stove and is not damaged with len and pick up camera.Automatically withdraw from defencive function though this structure has, still have following several defective:
1. because transmission mechanism is installed in high temperature imaging device safety guard next door, is connected the insertion that realizes high-temperature probe with high temperature imaging device protecting jacket and withdraws from by web plate.From the mechanics angle, the high-temperature probe cover has just formed a cantilever for transmission mechanism, therefore the targeting part of transmission mechanism has formed a very big moment of torsion in moving process, so just is easy to cause the wearing and tearing of transmission mechanism targeting part, reduces its work-ing life.In addition, the environment of erecting stage is more abominable, and phenomenons such as temperature distortion or corrosion appear in the structural part in might system, causes frictional force in the motion to strengthen and stuck phenomenon might occur, thereby cause high-temperature probe normally to withdraw from and to insert.
2. stopping property, explosion-proof are relatively poor: the insertion of high temperature imaging device protecting jacket from the above is to realize by transmission mechanism and web plate by being installed in the motion of withdrawing from, and itself is difficult to accomplish to seal fully from the structure transmission mechanism.
3. complex structure, poor stability: with regard to transmission mechanism, no matter be lead screw transmission form or the chain gear form in the electric motor driving, their structure all is a more complicated, the component that many rotations are all arranged, but also guide frame preferably must be arranged, even the transmission mechanism of air cylinder driven is no exception.Long-time like this under above-mentioned severe environment, these component very easily damage, and therefore must regularly safeguard.
Summary of the invention
The technical problem to be solved in the present invention provides the automatic safety device of a kind of good airproof performance, stable performance, high-temperature explosion-proof imaging device simple in structure.
For this reason, technical scheme of the present invention is as follows:
A kind of automatic protective unit of piston high-temperature explosion-proof imaging device; comprise the water jacket that is installed on the furnace wall; be installed in the slide valve on the water jacket; the ball valve that is connected with slide valve and be connected with ball valve; the transmission mechanism that is used for mobile high temperature imaging device; described transmission mechanism is one to be connected the piston pusher in the described ball valve outside; described piston pusher comprise one with described slide valve; the columniform cylinder barrel of the coaxial setting of ball valve; pass in the cylinder barrel and the columniform hollow type piston rod of coaxial setting with it; be arranged on annular piston between cylinder barrel inboard and the piston rod outside and the annular cylinder cap that is separately positioned on the cylinder barrel two ends; in cylinder cap, be provided with induction trunk; described high temperature imaging device is installed in the piston rod; the front end of piston rod stretches in the stove; the rear end is positioned at the outside of cylinder barrel; the inner ring surface of described annular piston is fixedlyed connected with the piston rod outside surface; when the high temperature imaging device is in monitoring location; described annular piston contacts with the cylinder cap of contiguous ball valve, and described each cylinder cap is provided with the air inlet port that communicates with the cylinder barrel internal space.
Preferably, described actuator piston is connected with described ball valve by an air-cooled spacer shell.Described air-cooled spacer shell is provided with the cold gas import, and cold gas blows in the stove through the gap that forms between described piston rod and spacer shell, ball valve, pneumatic brake plate valve and the water jacket.
In addition, in being provided with piston rod, the rear end of described piston rod carries out refrigerative cold gas inlet.
The automatic safety device of piston high-temperature explosion-proof imaging device of the present invention is simple in structure, move forward and backward owing to utilize piston to drive piston rod, thereby the high temperature imaging device that drives in the piston rod is finished the forward and back action, so sealing property is better; In addition, because cylinder barrel, piston and the coaxial setting of piston rod, so stability is better.
Description of drawings
Fig. 1 is the sectional view of automatic protective unit of piston high-temperature explosion-proof imaging device of the present invention.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to the automatic safety device of piston high-temperature explosion-proof imaging device of the present invention.
As shown in the figure, described automatic safety device comprises: be installed in water jacket 10, slide valve 11 and ball valve 12 on the furnace wall and the transmission mechanism that is used for mobile high temperature imaging device.Described transmission mechanism is one to be connected the piston pusher 13 in described ball valve 12 outsides, described actuator piston 13 comprise one with the columniform cylinder barrel 14 of described slide valve 11 and ball valve 12 coaxial settings, pass in the cylinder barrel 14 and with the piston rod 15 of the columniform hollow of cylinder barrel 14 coaxial settings, the annular cylinder cap 17A and the 17B that are arranged on the annular piston 16 between cylinder barrel 14 inboards and piston rod 15 outsides and are separately positioned on cylinder barrel 14 two ends, described high temperature imaging device is installed in the piston rod 15, the front end of piston rod 15 stretches in the vision slit on the furnace wall, the rear end is positioned at the outside of cylinder barrel 14, the inner ring surface of described annular piston 16 and piston rod 15 outside surfaces are for fixedlying connected, when the high temperature imaging device is in monitoring location, described annular piston 16 contacts with the cylinder cap 17A of contiguous ball valve 12, described each cylinder cap 17A, all be provided with the air inlet port (as shown in phantom in FIG.) with the internal communication of cylinder barrel 14 on the 17B, described two induction trunks are selected an air inlet.In detail, when needs withdraw from the high temperature imaging device, feed pressurized gas, discharge gas from induction trunk 17B from induction trunk 17A; When needs are monitored, feed pressurized gas from induction trunk 17B, discharge gas from induction trunk 17A, so promptly can finish the forward and back action of high temperature imaging device.
Described actuator piston is connected with described ball valve 12 by an air-cooled spacer shell 18.Air-cooled spacer shell 18 is provided with cold gas import 19, cold gas flows after-blow in stove between piston rod 15 and air-cooled spacer shell 18, ball valve 12, pneumatic brake plate valve 11, water jacket 10 and vision slit, the cold gas that is blown into also plays the stifled effect of vision slit ash that prevents simultaneously.In addition, as shown in the figure, in the rear end of described piston rod 15 is provided with piston rod, carry out refrigerative cold gas inlet 20, piston rod 15 internal spaces are cooled off, prevent the high temperature imaging device because too high damage of temperature from 20 cold gas that are blown into that enter the mouth.
The operating process of the automatic safety device of the anti-riot imaging device of piston high-temperature of the present invention is as follows:
At first; judge by Controlling System whether the temperature in water coolant, cold gas and the piston rod be used to cool off automatic safety device is normal, as normally, system at first opens ball valve; ball valve is opened slide valve after opening and putting in place, then the high temperature imaging device is inserted in the piston rod.Can monitor after installing.
When abnormal alarm appears in water coolant, cold gas or temperature, when perhaps needing on-line maintenance, need be with the high temperature imaging device.At this moment, Controlling System is at first by feeding compressor air, makes piston drive piston rod movement and withdraws from piston rod, withdraws from and closes slide valve and ball valve after putting in place.
Claims (4)
1. automatic protective unit of piston high-temperature explosion-proof imaging device; comprise the water jacket that is installed on the furnace wall; be installed in the slide valve on the water jacket; the ball valve that is connected with slide valve and be connected with ball valve; the transmission mechanism that is used for mobile high temperature imaging device; it is characterized in that: described transmission mechanism is one to be connected the piston pusher in the described ball valve outside; described piston pusher comprise one with described slide valve; the columniform cylinder barrel of the coaxial setting of ball valve; pass in the cylinder barrel and the columniform hollow type piston rod of coaxial setting with it; be arranged on annular piston between cylinder barrel inboard and the piston rod outside and the annular cylinder cap that is separately positioned on the cylinder barrel two ends; in cylinder cap, be provided with induction trunk; described high temperature imaging device is installed in the piston rod; the front end of piston rod stretches in the stove; the rear end is positioned at the outside of cylinder barrel; the inner ring surface of described annular piston is fixedlyed connected with the piston rod outside surface; when the high temperature imaging device is in monitoring location; described annular piston contacts with the cylinder cap of contiguous ball valve, and described each cylinder cap is provided with the air inlet port that communicates with the cylinder barrel internal space.
2. a kind of automatic protective unit of piston high-temperature explosion-proof imaging device according to claim 1 is characterized in that: described piston pusher is connected with described ball valve by an air-cooled spacer shell.
3. a kind of automatic protective unit of piston high-temperature explosion-proof imaging device according to claim 2; it is characterized in that: described air-cooled spacer shell is provided with the cold gas import, and cold gas blows in the stove through the gap that forms between described piston rod and spacer shell, ball valve, slide valve and the water jacket.
4. according to each described a kind of automatic protective unit of piston high-temperature explosion-proof imaging device in the claim 1～3, it is characterized in that: in the rear end of described piston rod is provided with piston rod, carry out refrigerative cold gas inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102451739A CN101787405B (en) | 2009-12-29 | 2009-12-29 | Automatic protective unit of piston high-temperature explosion-proof imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102451739A CN101787405B (en) | 2009-12-29 | 2009-12-29 | Automatic protective unit of piston high-temperature explosion-proof imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101787405A CN101787405A (en) | 2010-07-28 |
| CN101787405B true CN101787405B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102451739A Active CN101787405B (en) | 2009-12-29 | 2009-12-29 | Automatic protective unit of piston high-temperature explosion-proof imaging device |
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| CN (1) | CN101787405B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115109882B (en) * | 2021-03-18 | 2023-09-12 | 宝山钢铁股份有限公司 | Water-cooling protector and in-furnace high-temperature camera device |
| CN113355471B (en) * | 2021-06-09 | 2022-06-24 | 建龙阿城钢铁有限公司 | Blast furnace processing is with control protection machanism |
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- 2009-12-29 CN CN2009102451739A patent/CN101787405B/en active Active
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| Publication number | Publication date |
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| CN101787405A (en) | 2010-07-28 |
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