CN203052672U - Dry flashback arrestor - Google Patents
Dry flashback arrestor Download PDFInfo
- Publication number
- CN203052672U CN203052672U CN 201320001274 CN201320001274U CN203052672U CN 203052672 U CN203052672 U CN 203052672U CN 201320001274 CN201320001274 CN 201320001274 CN 201320001274 U CN201320001274 U CN 201320001274U CN 203052672 U CN203052672 U CN 203052672U
- Authority
- CN
- China
- Prior art keywords
- pressing cover
- assembly
- cap
- rear pressing
- preceding gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to a dry flashback arrestor which comprises a front end cover, a front pressing cover, a rubber sealing component, a back pressing cover component, a back end cover and a copper pipe. The front end cover and the back end cover are connected at two ends of the copper pipe. The back portion of the back end cover is fixedly connected with a thread connecting pipe with a nut. The front pressing cover, the rubber sealing component and the back pressing cover component are arranged in the copper pipe. The rubber sealing component is arranged in a back end hole of the front pressing cover. The back pressing cover component is arranged on the front portion of the back end cover. One end of a spring of the back pressing cover component is connected on a nut of the rubber sealing component in a sleeved mode. A powder metallurgy porcelain bushing is arranged between the back pressing cover component and the front pressing cover. The dry flashback arrestor has the advantages of being firm and reasonable in structure, safe and reliable in working, light in weight, attractive in appearance and the like.
Description
Technical field
The utility model relates to a kind of welding, the anti-locking apparatus of cutting tempering, relates in particular to a kind of dry flashback arrestor.
Background technology
At present when the operation of the similar technology of welding, cutting; the problem of tempering takes place in the gas welding gas cutting process easily; flash-back arrestor mainly is to avoid flame to enter gas cylinder or pipeline; blast; play the effect of safeguard protection, and there is the problem of lacking in complex structure, poor stability, service life mostly in existing flash-back arrestor.
The utility model content
The utility model for overcome the above problems provide a kind of simple in structure, use safety, good heat dissipation effect, the fast dry flashback arrestor of knock down the flame.
The technical solution of the utility model is: this device comprises drive end bearing bracket, preceding gland, the rubber seal assembly, the rear pressing cover assembly, rear end cap and copper pipe, described drive end bearing bracket and rear end cap are connected the copper pipe two ends, described rear end cap rear portion fixedly connected one has the screw nipple of nut, be provided with preceding gland in the described copper pipe, rubber seal assembly and rear pressing cover assembly, described rubber seal assembly is arranged in the back stomidium of preceding gland, described rear pressing cover assembly is arranged on the rear end cap front portion, spring one end on the rear pressing cover assembly is socketed on the assembly cap on the rubber seal assembly, is provided with the powder metallurgy insulator between described rear pressing cover assembly and the preceding gland.
Described rear pressing cover assembly comprises rear pressing cover, packing ring one, adjusting pad one and spring, and described packing ring one and adjusting pad one are separately positioned on rear pressing cover rear portion and front portion, and described adjusting pad one is arranged between powder metallurgy insulator one end and the rear pressing cover.
Described preceding gland front portion is provided with filter screen and is fixed on the preceding gland by compressing tablet, is provided with packing ring two between described preceding gland and the drive end bearing bracket, is provided with adjusting pad two between described preceding gland rear portion and powder metallurgy insulator one end.
Described rubber seal assembly comprises sealing gasket, rubber blanket and assembly cap, and described rubber blanket is socketed in to be pieced together on the cap, described assembly cap be arranged on preceding gland after sealing gasket in the stomidium fixedly connected.
The utility model use that matches with pressure-reducing valve as the safety device of protection gas cylinder or gas pipeline, is adopted micropore powder metallurgy insulator, micropore heat radiation knock down the flame.The effect that prevents is played in the tempering that takes place in the gas welding gas cutting process, avoided flame to enter gas cylinder or pipeline, blast, play the effect of safeguard protection.The utlity model has characteristics such as firm in structure reasonable, safe and reliable, in light weight, aesthetic in appearance.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1 is drive end bearing bracket among the figure, the 2nd, and compressing tablet, the 3rd, preceding gland, the 4th, packing ring two, 5th, filter screen, the 6th, adjusting pad two, the 7th, copper pipe, the 8th, sealing gasket, the 9th, rubber blanket, the 10th, piece together cap, the 11st, spring, the 12nd, powder metallurgy insulator, the 13rd, rear pressing cover, the 14th, rear end cap, the 15th, screw nipple, the 16th, nut, the 17th, packing ring one, 18th, adjusting pad one.
The specific embodiment
Dry flashback arrestor, this device comprises drive end bearing bracket 1, preceding gland 3, the rubber seal assembly, the rear pressing cover assembly, rear end cap 14 and copper pipe 7, described drive end bearing bracket 1 and rear end cap 14 are connected copper pipe 7 two ends, described rear end cap 14 rear portions fixedly connected one have the screw nipple 15 of nut 16, gland 3 before being provided with in the described copper pipe 7, rubber seal assembly and rear pressing cover assembly, described rubber seal assembly is arranged in the back stomidium of preceding gland 3, described rear pressing cover assembly is arranged on rear end cap 14 front portions, spring 11 1 ends on the rear pressing cover assembly are socketed on the assembly cap 10 on the rubber seal assembly, be provided with powder metallurgy insulator 12 between described rear pressing cover assembly and the preceding gland 3, described rear pressing cover assembly comprises rear pressing cover 13, packing ring 1, adjusting pad 1 and spring 11, described packing ring 1 and adjusting pad 1 are separately positioned on rear pressing cover 13 rear portions and front portion, described adjusting pad 1 is arranged between powder metallurgy insulator 12 1 ends and the rear pressing cover 13, described preceding gland 3 front portions are provided with filter screen 5 and are fixed on the preceding gland 3 by compressing tablet 2, be provided with packing ring 24 between gland 3 and the drive end bearing bracket 1 before described, be provided with adjusting pad 26 between gland 3 rear portions and powder metallurgy insulator 12 1 ends before described, described rubber seal assembly comprises sealing gasket 8, rubber blanket 9 and assembly cap 10, described rubber blanket 9 is socketed in to be pieced together on the cap 10, and described assembly cap 10 is fixedlyed connected with the sealing gasket 8 in being arranged on preceding gland 3 back stomidiums.
At first nut 16 is packed on the screw nipple 15, again with rear end cap 14 on screw thread screw, then rear end cap 14 and screw thread on the copper pipe 7 are screwed; Then packing ring 1 is enclosed within the rear end of rear pressing cover 13, and adjusting pad 1 is enclosed within the front end of rear pressing cover 13, puts powder metallurgy insulator 12 and spring 11 then, then powder metallurgy insulator 12 and rear pressing cover 13 assemblies is put into copper pipe 7; Filter screen 5 usefulness compressing tablets 2 are pressed on the preceding gland 3, and the front end of gland 3 before packing ring 24 is enclosed within, rubber blanket 9 is enclosed within to be pieced together on the cap 10, again with sealing gasket 8 on screw thread screw, the rubber seal assembly is packed in the back stomidium of preceding gland 3, put adjusting pad 26 and put into copper pipe 7, adjust the position, spring 11 is enclosed within pieces together on the cap 10; At last the screw thread on drive end bearing bracket 1 and the copper pipe 7 is screwed, whole dry flashback arrestor assembling so far finishes.
Under the normal condition, gas enters from drive end bearing bracket 1, the A chamber of gland 3 before gas enters through filter screen 5, under the gas pressure effect, push sealing gasket 8, rubber blanket 9 open and piece together cap 10, enter the B chamber, enter the C chamber after filtering through powder metallurgy insulator 12 again, enter rear end cap 14 by the hole on the rear pressing cover 13, flow out from the exit at last.
When gas contingency flow backwards, gas entered from rear end cap 14, enters the C chamber by the hole on the rear pressing cover 13, passes through powder metallurgy insulator 12 again, entered the B chamber behind the micropore heat radiation knock down the flame.At this moment under the effect of gas pressure and spring 11, on the gland 3, the gas passage sealed before sealing gasket 8, rubber blanket 9 and assembly cap 10 tightly were pressed in, and gas can not enter the A chamber and flow out from drive end bearing bracket 1, thereby plays the effect that prevents tempering.
Connected mode of the present utility model can adopt to be threaded, and also can be replaced with flange connection, bayonet socket connection etc. as requested.
Claims (4)
1. dry flashback arrestor, it is characterized in that: this device comprises drive end bearing bracket, preceding gland, the rubber seal assembly, the rear pressing cover assembly, rear end cap and copper pipe, described drive end bearing bracket and rear end cap are connected the copper pipe two ends, described rear end cap rear portion fixedly connected one has the screw nipple of nut, be provided with preceding gland in the described copper pipe, rubber seal assembly and rear pressing cover assembly, described rubber seal assembly is arranged in the back stomidium of preceding gland, described rear pressing cover assembly is arranged on the rear end cap front portion, spring one end on the rear pressing cover assembly is socketed on the assembly cap on the rubber seal assembly, is provided with the powder metallurgy insulator between described rear pressing cover assembly and the preceding gland.
2. dry flashback arrestor according to claim 1, it is characterized in that: described rear pressing cover assembly comprises rear pressing cover, packing ring one, adjusting pad one and spring, described packing ring one and adjusting pad one are separately positioned on rear pressing cover rear portion and front portion, and described adjusting pad one is arranged between powder metallurgy insulator one end and the rear pressing cover.
3. dry flashback arrestor according to claim 1, it is characterized in that: described preceding gland front portion is provided with filter screen and is fixed on the preceding gland by compressing tablet, be provided with packing ring two between gland and the drive end bearing bracket before described, be provided with adjusting pad two between described preceding gland rear portion and powder metallurgy insulator one end.
4. dry flashback arrestor according to claim 1, it is characterized in that: described rubber seal assembly comprises sealing gasket, rubber blanket and assembly cap, described rubber blanket is socketed in to be pieced together on the cap, described assembly cap be arranged on preceding gland after sealing gasket in the stomidium fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001274 CN203052672U (en) | 2013-01-04 | 2013-01-04 | Dry flashback arrestor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001274 CN203052672U (en) | 2013-01-04 | 2013-01-04 | Dry flashback arrestor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052672U true CN203052672U (en) | 2013-07-10 |
Family
ID=48735619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001274 Expired - Fee Related CN203052672U (en) | 2013-01-04 | 2013-01-04 | Dry flashback arrestor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941952A (en) * | 2015-05-28 | 2015-09-30 | 沪东中华造船(集团)有限公司 | Flashback arrestor maintaining method |
-
2013
- 2013-01-04 CN CN 201320001274 patent/CN203052672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941952A (en) * | 2015-05-28 | 2015-09-30 | 沪东中华造船(集团)有限公司 | Flashback arrestor maintaining method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203052672U (en) | Dry flashback arrestor | |
| CN103939619B (en) | Modular differential pressure bottle valve | |
| CN103047655A (en) | Dry backflash arrestor | |
| CN204344758U (en) | Gas-bag type water-cooled brake | |
| CN103452515A (en) | Wellhead bimetal seal assembly | |
| CN205078654U (en) | Complete explosion -proof liquid braking device | |
| CN204949528U (en) | Novel environmental protection low carbon electron cigarette | |
| CN204864629U (en) | Fire extinguisher of rolling disc is equipped with | |
| CN202418618U (en) | Novel valve for fire extinguisher | |
| CN204946246U (en) | A kind of fire sensor presenting fire-fighting environment with 3D dummy model in real time | |
| CN204805824U (en) | Pressure release formula water knockout drum | |
| CN202327651U (en) | Safety device of liquid gas storage tank | |
| CN203108032U (en) | Aerosol fire extinguishing device | |
| CN203052671U (en) | Flashback arrestor flashback automatic switching mechanism | |
| CN205460578U (en) | Non -pressure storage type dry chemical extinguisher for wind generating set | |
| CN202490930U (en) | Seal structure applied to rare metal powder processing | |
| CN202459909U (en) | Fire suppression bottle | |
| CN205173640U (en) | Explosion -proof executor mechanism | |
| CN101884498A (en) | Anti-explosion safety device of autoclave | |
| CN209068227U (en) | A kind of fire-retardant lamps and lanterns | |
| CN202141124U (en) | Oil-charging type electric heater sealing structure | |
| CN204672048U (en) | A kind of for the filter between air accumulator and automobile braking main valve | |
| CN204515153U (en) | The power valve of high-power program control focus | |
| CN203099889U (en) | Laterally-firing lighter | |
| CN205786603U (en) | A kind of decompressor with methane detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160104 |