CN105757359A - Gas conveying pipeline with alarm function and manufacturing method thereof - Google Patents
Gas conveying pipeline with alarm function and manufacturing method thereof Download PDFInfo
- Publication number
- CN105757359A CN105757359A CN201610283949.6A CN201610283949A CN105757359A CN 105757359 A CN105757359 A CN 105757359A CN 201610283949 A CN201610283949 A CN 201610283949A CN 105757359 A CN105757359 A CN 105757359A
- Authority
- CN
- China
- Prior art keywords
- gas
- main body
- pipe main
- connector
- pipeline
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 46
- 239000011229 interlayer Substances 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 13
- 239000011358 absorbing material Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920006327 polystyrene foam Polymers 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 77
- 239000012530 fluid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- -1 signal projector Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pipeline Systems (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas conveying pipeline with an alarm function and a manufacturing method thereof. A pipeline partition layer is arranged in a pipeline main body; an upper connector is arranged at the top end of the pipeline main body; a connecting bolt is arranged on the surface of the upper connector; a connecting pipe is fixedly connected with the upper connector through the connecting bolt; a filtering net is arranged below the upper connector; an annular fixing frame is arranged on the outer side of the pipeline main body; a gas concentration detecting device is arranged below the annular fixing frame; a signal transmitter is fixed to the middle part of the left side of the pipeline main body; a gas leakage detector is arranged below the signal transmitter; a lower connector is also arranged at the lower part of the pipeline main body; a gas leakage joint is arranged on one side of the lower connector and is electrically connected with the gas leakage detector through an electric wire. The gas conveying pipeline with the alarm function is simple in structure, convenient to use, low in cost, and higher in conveying safety.
Description
Technical field
The invention belongs to pipe technology field, be specifically related to a kind of gas transport pipeline with alarm function and manufacture method thereof.
Background technology
Pipeline is the device for carrying gas, liquid or the fluid with solid particle being connected into pipe, pipe connector and valve etc..Generally, fluid, after the superchargings such as aerator, compressor, pump and boiler, flows to low pressure place from the high pressure of pipeline, it is possible to utilize pressure or the gravity transfer of fluid self.Having many uses of pipeline is general, be used primarily in feedwater, draining, heat supply, give gas, long distance delivery oil and natural gas, agricultural irrigation, in hydraulic engineering and various commercial plant.When the flow of fluid is known, the size of caliber depends on the frictional resistance (Pressure Drop) of flow velocity or the permission allowed.When flow velocity is big, caliber is little, but pressure drop values increases.Therefore, pipeline capital expenditure can be saved when flow velocity is big, but the operation energy consumption expense of the power-equipment such as pump and compressor increases.If additionally, flow velocity is excessive, it is also possible to other disadvantageous factors served by band.Therefore caliber should consider to determine according to construction investment, operating cost and other technologies combined factors.The coupling method between turnover adapter on pipe, pipe connector, valve and equipment, determined mainly there are four kinds of methods such as the connection of thread connection, flange, socket joint connection and welding by factors such as the material of the character of fluid, pressure and temperature and pipe, size and installation sites.The transport of present gas is more and more concerned, such as coal gas etc., people are thus needed to account for the safety problem of transport, but existing gas transport pipeline is merely able to simply transport, but its safety can not be detected, this allows for people and uses and worry very much, so we need a novel gas transport pipeline to solve the problems referred to above, meets the demand of people.
Summary of the invention
It is an object of the invention to provide a kind of gas transport pipeline with alarm function and manufacture method thereof, with the problem solving to propose in above-mentioned background technology.
nullFor achieving the above object，The present invention provides following technical scheme: a kind of gas transport pipeline with alarm function，Including drainage screen、Pipe main body、Pipeline interlayer、Signal projector、Gas leak tester、Gas leakage detection tabs、Connecting tube、Gas concentration detection apparatus，Described pipeline interlayer is arranged on the inside of pipe main body，The top of described pipe main body is provided with connector，The surface of described upper connector is provided with coupling bar，Described connecting tube is connected by coupling bar and upper connector are fixing，Described drainage screen is arranged on the lower section of connector，And drainage screen and pipe main body are fixing is connected，The outside of described pipe main body is fixedly connected with annular fixing frame，Described gas concentration detection apparatus is arranged on the lower section of annular fixing frame，And gas concentration detection apparatus and the surface on the left of pipe main body are fixing is connected，Described signal projector is fixed on pipe main body left side central portion，Described gas leak tester is arranged on the lower section of signal projector，And gas leak tester and signal projector are electrically connected，The bottom of described pipe main body is provided with lower connector，Described gas leakage detection tabs is arranged on the left side of lower connector，And gas leakage detection tabs is electrically connected with gas leak tester by electric wire.
Preferably, it is provided with porous sound-absorbing material and polystyrene foam plastics inside described pipeline interlayer.
Preferably, described annular fixing frame is provided with 2 to several according to duct length.
Preferably, the inside of described gas concentration detection apparatus is provided with sender unit.
Preferably, described drainage screen is provided with 2, and 2 described drainage screens are separately positioned on the lower section of connector and the top of lower connector.
The invention also discloses the manufacture method of a kind of gas transport pipeline with alarm function, described gas transport pipeline includes drainage screen, pipe main body, pipeline interlayer, signal projector, gas leak tester, gas leakage detection tabs, connecting tube, gas concentration detection apparatus, and its concrete manufacture method is in that to include following technique and step:
1) pipe main body cross section circular, is arranged on described pipeline interlayer the inside of pipe main body, is provided with porous sound-absorbing material and/or polystyrene foam plastics inside described pipeline interlayer；
2) connector is set on the top of described pipe main body, the surface configuration coupling bar of connector on described, connecting tube being connected by coupling bar and upper connector are fixing, then drainage screen is arranged on the lower section of upper connector, drainage screen adopts fixing connection with pipe main body；
3) in the outside of pipe main body, fixing connection annular fixing frame is several, gas concentration detection apparatus is arranged on the lower section of annular fixing frame, gas concentration detection apparatus is fixing with the surface on the left of pipe main body to be connected, signal projector is fixed on pipe main body left side central portion, gas leak tester is arranged on the lower section of signal projector, gas leak tester is electrically connected with signal projector；
4) lower connector is set in the bottom of pipe main body, drainage screen above lower connector, gas leakage detection tabs is arranged on the left side of lower connector, gas leakage detection tabs is electrically connected with gas leak tester by electric wire.
The technique effect of the present invention and advantage: should be simple with the gas transport pipeline configuration of alarm function, easy to use, cost be low, and the safety transported is higher；Gas can be removed impurity by the setting of drainage screen, is that the gas of transport is more pure, and so using just can be more safe；Pipeline interlayer the propagation that can reduce on the one hand sound is set, pipeline can be incubated on the other hand, so will not make frost crack pipe；The setting of annular fixing frame can the stability of protective conduit, pipeline breaking will not be caused because pressure is excessive；The setting of gas leak tester, signal projector and gas leakage detection tabs can when pipeline leaks gas the very first time notify people, being convenient for people to the very first time overhauls, and decreases loss；Gas concentration detection apparatus can the concentration of detected gas, so use to gas, such as the burning of coal gas is more safe.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: the upper connector of 1-, 2-drainage screen, 3-pipe main body, 4-pipeline interlayer, 5-signal projector, 6-gas leak tester, 7-leaks gas detection tabs, 8-connecting tube, 9-coupling bar, 10-annular fixing frame, 11-gas concentration detection apparatus, connector under 12-.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullThe invention provides a kind of gas transport pipeline with alarm function as shown in Figure 1，Including drainage screen 2、Pipe main body 3、Pipeline interlayer 4、Signal projector 5、Gas leak tester 6、Gas leakage detection tabs 7、Connecting tube 8、Gas concentration detection apparatus 11，Described pipeline interlayer 4 is arranged on the inside of pipe main body 3，Described pipeline interlayer 4 is internal is provided with porous sound-absorbing material and/or polystyrene foam plastics，The top of described pipe main body 3 is provided with connector 1，The surface of described upper connector 1 is provided with coupling bar 9，Described connecting tube 8 is connected by coupling bar 9 is fixing with upper connector 1，Described drainage screen 2 is arranged on the lower section of connector 1，And drainage screen 2 and pipe main body 3 is fixing is connected，Described drainage screen 2 is provided with 2，2 described drainage screens 2 are separately positioned on the lower section of connector 1 and the top of lower connector 12，The outside of described pipe main body 3 is fixedly connected with annular fixing frame 10，Described annular fixing frame 10 is provided with 2，Described gas concentration detection apparatus 11 is arranged on the lower section of annular fixing frame 10，And gas concentration detection apparatus 11 and the surface on the left of pipe main body 3 are fixing is connected，The inside of described gas concentration detection apparatus 11 is provided with sender unit，Described signal projector 5 is fixed on pipe main body 3 left side central portion，Described gas leak tester 6 is arranged on the lower section of signal projector 5，And gas leak tester 6 is electrically connected with signal projector 5，The bottom of described pipe main body 3 is provided with lower connector 12，Described gas leakage detection tabs 7 is arranged on the left side of lower connector 12，And gas leakage detection tabs 7 is electrically connected by electric wire and gas leak tester 6.
The present embodiment also discloses the manufacture method of a kind of gas transport pipeline with alarm function, described gas transport pipeline includes drainage screen 2, pipe main body 3, pipeline interlayer 4, signal projector 5, gas leak tester 6, gas leakage detection tabs 7, connecting tube 8, gas concentration detection apparatus 11, and its concrete manufacture method is in that to include following technique and step:
1) described pipeline interlayer 4 is arranged on the inside of pipe main body 3, and described pipeline interlayer 4 is internal is provided with porous sound-absorbing material and/or polystyrene foam plastics；
2) connector 1 is set on the top of described pipe main body 3, the surface configuration coupling bar 9 of connector 1 on described, connecting tube 8 being connected by coupling bar 9 is fixing with upper connector 1, then drainage screen 2 is arranged on the lower section of upper connector 1, drainage screen 2 adopts fixing connection with pipe main body 3；
3) in the outside of pipe main body 3, fixing connection annular fixing frame 10 is several, keeping at a certain distance away of each two, gas concentration detection apparatus 11 is arranged on the lower section of annular fixing frame 10, gas concentration detection apparatus 11 is fixing with the surface on the left of pipe main body 3 to be connected, signal projector 5 is fixed on pipe main body 3 left side central portion, gas leak tester 6 is arranged on the lower section of signal projector 5, gas leak tester 6 and signal projector 5 are electrically connected；
4) lower connector 12 is set in the bottom of pipe main body 3, drainage screen 2 above lower connector 12, gas leakage detection tabs 7 is arranged on the left side of lower connector 12, gas leakage detection tabs 7 is electrically connected by electric wire and gas leak tester 6.
Operation principle: when should use with the gas transport pipeline of alarm function, the pipeline forming complete seal is connected by 9 connecting tubes 8 of coupling bar inside upper connector 1 and lower connector 12, so can carry out the transport of gas, gas enters into pipe main body 3 from connecting tube 8, drainage screen 2 carries out the filtration of gaseous impurity, then gas is detected by gas concentration detection apparatus 11, and the data detected are sent to control system, annular fixing frame 10 is fixed on the surface of pipe main body 3, gas leakage detection tabs 7 is set in the position of lower connector 12, if there being gas to leak, gas leakage detection tabs 7 passes the result to gas leak tester 6, control system is transmitted signals to again through signal projector 5, such people can overhaul the very first time.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; it is not limited to the present invention; although the present invention being described in detail with reference to previous embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent replacement; all within the spirit and principles in the present invention; any amendment of being made, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (6)
- null1. the gas transport pipeline with alarm function，Including drainage screen (2)、Pipe main body (3)、Pipeline interlayer (4)、Signal projector (5)、Gas leak tester (6)、Gas leakage detection tabs (7)、Connecting tube (8)、Gas concentration detection apparatus (11)，It is characterized in that: described pipeline interlayer (4) is arranged on the inside of pipe main body (3)，The top of described pipe main body (3) is provided with connector (1)，The surface of described upper connector (1) is provided with coupling bar (9)，Described connecting tube (8) is connected by coupling bar (9) and upper connector (1) are fixing，Described drainage screen (2) is arranged on the lower section of connector (1)，And drainage screen (2) and pipe main body (3) are fixing is connected，The outside of described pipe main body (3) is fixedly connected with annular fixing frame (10)，Described gas concentration detection apparatus (11) is arranged on the lower section of annular fixing frame (10)，And the surface in gas concentration detection apparatus (11) and pipe main body (3) left side is fixing is connected，Described signal projector (5) is fixed on pipe main body (3) left side central portion，Described gas leak tester (6) is arranged on the lower section of signal projector (5)，And gas leak tester (6) is electrically connected with signal projector (5)，The bottom of described pipe main body (3) is provided with lower connector (12)，Described gas leakage detection tabs (7) is arranged on the left side of lower connector (12)，And gas leakage detection tabs (7) is electrically connected with gas leak tester (6) by electric wire.
- 2. a kind of gas transport pipeline with alarm function according to claim 1, it is characterised in that: described pipeline interlayer (4) is internal is provided with porous sound-absorbing material and/or polystyrene foam plastics.
- 3. a kind of gas transport pipeline with alarm function according to claim 1, it is characterised in that: described annular fixing frame (10) is provided with 2.
- 4. a kind of gas transport pipeline with alarm function according to claim 1, it is characterised in that: the inside of described gas concentration detection apparatus (11) is provided with sender unit.
- 5. a kind of gas transport pipeline with alarm function according to claim 1, it is characterized in that: described drainage screen (2) is provided with 2,2 described drainage screens (2) are separately positioned on the lower section of connector (1) and the top of lower connector (12).
- 6. the manufacture method of a kind of gas transport pipeline with alarm function according to claim 1-5, described gas transport pipeline includes drainage screen (2), pipe main body (3), pipeline interlayer (4), signal projector (5), gas leak tester (6), gas leakage detection tabs (7), connecting tube (8), gas concentration detection apparatus (11), and its concrete manufacture method is in that to include following technique and step:1) described pipeline interlayer (4) is arranged on the inside of pipe main body (3), and described pipeline interlayer (4) is internal is provided with porous sound-absorbing material and/or polystyrene foam plastics；2) upper connector (1) is set on the top of described pipe main body (3), the surface configuration coupling bar (9) of connector (1) on described, connecting tube (8) is connected by coupling bar (9) and upper connector (1) are fixing, drainage screen (2) is arranged on the lower section of upper connector (1) again, and drainage screen (2) adopts fixing connection with pipe main body (3)；3) in the outside of pipe main body (3), fixing connection annular fixing frame (10) is several, gas concentration detection apparatus (11) is arranged on the lower section of annular fixing frame (10), gas concentration detection apparatus (11) is fixing with the surface in pipe main body (3) left side to be connected, signal projector (5) is fixed on pipe main body (3) left side central portion, gas leak tester (6) is arranged on the lower section of signal projector (5), gas leak tester (6) is electrically connected with signal projector (5)；4) lower connector (12) is set in the bottom of pipe main body (3), top drainage screen (2) at lower connector (12), detection tabs (7) of leaking gas is arranged on the left side of lower connector (12), and gas leakage detection tabs (7) is electrically connected with gas leak tester (6) by electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283949.6A CN105757359A (en) | 2016-05-03 | 2016-05-03 | Gas conveying pipeline with alarm function and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283949.6A CN105757359A (en) | 2016-05-03 | 2016-05-03 | Gas conveying pipeline with alarm function and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105757359A true CN105757359A (en) | 2016-07-13 |
Family
ID=56323197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283949.6A Pending CN105757359A (en) | 2016-05-03 | 2016-05-03 | Gas conveying pipeline with alarm function and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757359A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2040011A (en) * | 1979-01-08 | 1980-08-20 | Berry A | Thermally insulated piping systems |
| CN102434729A (en) * | 2010-09-03 | 2012-05-02 | 曼柴油机和涡轮机欧洲股份公司 | Double-wall pipe |
| CN103899854A (en) * | 2014-04-15 | 2014-07-02 | 厦门美甘齐动物料输送工程股份有限公司 | Pneumatic conveying pipeline |
| CN204534131U (en) * | 2015-03-14 | 2015-08-05 | 张贤锋 | A kind of pipe conveying equipment being convenient to recover the oil |
-
2016
- 2016-05-03 CN CN201610283949.6A patent/CN105757359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2040011A (en) * | 1979-01-08 | 1980-08-20 | Berry A | Thermally insulated piping systems |
| CN102434729A (en) * | 2010-09-03 | 2012-05-02 | 曼柴油机和涡轮机欧洲股份公司 | Double-wall pipe |
| CN103899854A (en) * | 2014-04-15 | 2014-07-02 | 厦门美甘齐动物料输送工程股份有限公司 | Pneumatic conveying pipeline |
| CN204534131U (en) * | 2015-03-14 | 2015-08-05 | 张贤锋 | A kind of pipe conveying equipment being convenient to recover the oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111120003A (en) | Test device for simulating gas and coal spontaneous combustion symbiotic disaster and working method | |
| CN206290897U (en) | Fluid pipeline muffler and water delivery pipeline system | |
| CN207437963U (en) | Glass reinforced plastic push pipe joint pressure testing device | |
| CN105757359A (en) | Gas conveying pipeline with alarm function and manufacturing method thereof | |
| CN205991246U (en) | A kind of gas transport pipeline with alarm function | |
| CN209587437U (en) | A kind of fast connector for pipeline | |
| CN110701400A (en) | Quick self-sealing's pipe joint | |
| CN206647667U (en) | A kind of heavy caliber HDPE structural walls quickly connect inspection shaft | |
| CN205480208U (en) | Take gas pipeline drainer of steam heat tracing function | |
| CN206631329U (en) | Air-control device geomantic omen separator | |
| CN105002953A (en) | Pollution discharge apparatus installed on water supply device | |
| CN209679379U (en) | A kind of multi-purpose formula fire pump adapter | |
| CN208571081U (en) | Trough pipe double-bellmouth connector | |
| CN207034642U (en) | A kind of low noise steam recovery pipe | |
| CN207049621U (en) | Mining liquid carbon dioxide conveying plumbing installation | |
| CN206860225U (en) | A kind of mineral long reach automatic pressure-reducing device | |
| CN111779909A (en) | Blow-off pipe system for subway construction | |
| CN213144403U (en) | Oil pipe protector for drilling platform | |
| CN206846168U (en) | Metallic conduit flexible link | |
| CN201672261U (en) | Gas production type explosion arrester for flammable gas and powder transfer pipelines | |
| CN205479754U (en) | Device for preventing pipeline level is met and is located an excessive displacement | |
| CN2911819Y (en) | Checking alarmer for salt water from broken freezing tube | |
| CN216308371U (en) | Natural gas precooling apparatus | |
| CN204371198U (en) | Wellhead equipment | |
| CN212616590U (en) | Explosion-proof drainage device of flame-proof type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |