CN106051467A - Gas-water separation fire retardant explosion venting device - Google Patents
Gas-water separation fire retardant explosion venting device Download PDFInfo
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- CN106051467A CN106051467A CN201610642796.XA CN201610642796A CN106051467A CN 106051467 A CN106051467 A CN 106051467A CN 201610642796 A CN201610642796 A CN 201610642796A CN 106051467 A CN106051467 A CN 106051467A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 238000004880 explosion Methods 0.000 title claims abstract description 48
- 238000013022 venting Methods 0.000 title claims abstract description 44
- 238000000926 separation method Methods 0.000 title claims abstract description 18
- 239000003063 flame retardant Substances 0.000 title abstract 4
- 239000000428 dust Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 230000003020 moisturizing effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mining & Mineral Resources (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to the technical field of safe transportation of a low-concentration gas pipeline, and relates to a gas-water separation fire retardant explosion venting device. The gas-water separation fire retardant explosion venting device comprises a gas inlet pipe (4) and a hollow barrel, wherein both ends of the hollow barrel are closed; a water inlet (9) which is communicated with an external pipeline is formed in one side wall surface of the hollow barrel; water in a cavity between the gas inlet pipe (4) and the hollow barrel is used for water-sealing gas in the gas inlet pipe; the upper end of the gas inlet pipe (4) is bent; a straight section which is eccentric with the hollow barrel is formed on the lower end of the bent section of the gas inlet pipe, and the lower end of the straight section is positioned below the water sealing surface; a perforated plate I (3) is arranged in the combining position of the bent section and the straight section, and the perforated plate I (3) is positioned above the water sealing surface in the plane; a perforated plate II (10) further sleeves the lower end of the straight section of the gas inlet pipe; a baffle (7) is welded on the inner wall surface of a gas outlet pipe. According to the gas-water separation fire retardant explosion venting device, explosion flames are effectively prevented from spreading, and the explosion pressure can be relieved under constant pressure.
Description
Technology neck city
The invention belongs to low concentration gas pipe safety conveying technology field, relate to a kind of gas-water separation back-fire relief explosion venting device.
Background technology
In gas electricity is applied, the concentration of low concentration gas is easily in the explosion limit scope of methane, when gas is in
During explosion limit scope, end tempering, thunderbolt etc. is utilized to easily cause pipeline gas explosion, if flame transmission cannot stop, blast
Pressure can not get effectively releasing, then can cause Taked gas out process and the generation of coal mine downhole safety accident, cause economic loss and
Casualties.Additionally, low concentration gas is in safe transport, gas is contained within large quantity of moisture, if not to water before entering gas engine
Separate and then can reduce gas engine performance.
Existing pass patent (application number: CN201110178955.2, CN201210282520.7 and
CN201510183875.4) the back-fire relief explosion venting device related to have a characteristic that (1) by appendix end cast-cutting saw dentation,
Orifice plate is coordinated to carry out air pocket cutting, it is ensured that bubble is uniformly emerged, but cannot ensure what air-flow was distributed in appendix tip speed
Axial symmetry, to avoid air-flow that the impact of liquid level is produced air gap；(2) water seal fire arrestor venting of dust explosion mouth installs explosion-proof rubber, easily
Aging, it is impossible to bear negative pressure, and venting pressure is inaccurate；(3) without soil cleaning port, trouble of removing contamination；(4) twin-tub structure, cost is high, knot
Structure is complicated；(5) severe cold area application had limitation.
Summary of the invention
In order to solve the problems referred to above, the purpose of the present invention is to propose to a kind of gas-water separation back-fire relief explosion venting device.
The present invention completes its invention task by the following technical programs:
A kind of gas-water separation back-fire relief explosion venting device, described gas-water separation back-fire relief explosion venting device includes to irrigate entering of gas
Trachea and the hollow cylinder of closed at both ends；A side wall surface of hollow cylinder is provided with the filler connected with external pipeline；
The water of the cavity between described air inlet pipe and hollow cylinder carries out water seal to the gas in air inlet pipe;The upper end of described air inlet pipe is
Bend loss, and the upper end of bend loss stretches out hollow cylinder；Bend loss is 90 ° of settings, under the effect of bend pipe centrifugal force gas with
Bend pipe tube wall collides, and makes the droplet in gas lose kinetic energy and separates with gas；The lower end tool of bend loss described in air inlet pipe
Have and the straight length of hollow cylinder eccentric setting, and the lower end of straight length is positioned at below water seal face；At described bend pipe and straight length
Binding site porous plate I is set, described porous plate I is positioned at above water seal face on plan-position；Work at porous plate I
Under with, gas flow speed redistributes, and makes gas VELOCITY DISTRIBUTION axially symmetricization, and the impact to liquid level is uniform, it is to avoid produce air gap,
Effectively stop flame transmission；The lower end of straight length described in air inlet pipe is also equipped with porous plate II, and described porous plate II welds
In hollow cylinder, and it is positioned at the lower section in described water seal face, is used for ensureing that gas is uniformly gushed out from the water of hollow cylinder, it is to avoid
Water level fluctuation produces air gap；The top of described hollow cylinder one side wall surface is provided with escape pipe；Described escape pipe has straight tube
Section, described in escape pipe, one end of straight length is stretched in hollow cylinder, and is welded with the bending section being bent upwards in its termination；Give vent to anger
The cavity of the bending section connection hollow cylinder described in pipe；It is positioned on the internal face of straight length described in hollow cylinder escape pipe welding
Have on the baffle plate in order to the water in gas is intercepted, and the internal face of the straight length inside baffle plate and have and air cylinder body
The discharge opening of cavity connection, condensed water meets baffle, flows in hollow cylinder through discharge opening, and the water reducing downstream line contains
Amount；The top of described hollow cylinder is provided with venting of dust explosion mouth, and the top of venting of dust explosion mouth is provided with venting of dust explosion sheet；Described hollow cylinder
The bottom of one side wall surface is provided with soil cleaning port, and described soil cleaning port is sealed by blind flange；The side of described hollow cylinder also has
Having the high-order dewatering outlet in order to be released when water level is higher than water seal face, described high-order dewatering outlet is by Flange joint exterior tube
Road, the external pipe other end inserts cistern certain depth, it is ensured that the water seal to gas, with leakage-preventing；Described hollow cylinder side
The bottom in face has dewatering outlet, opens manual ball valve when turnaround of unit or when disabling and is discharged from dewatering outlet by water.
Described porous plate II has the eccentric orfice passed in order to straight length described in air inlet pipe, and around described eccentric orfice
Being evenly equipped with multiple equidimension through hole, the circulation area of porous plate II, more than the circulation area of air inlet pipe, reduces crushing.
It is provided with in order to the water in hollow cylinder is entered in cavity between bottom and the bottom surface of hollow cylinder of air inlet pipe
The serpentine heating pipe of row heating；Described serpentine heating pipe is supported in hollow cylinder by angle steel；Described serpentine heating pipe
Import and export and all stretch out hollow cylinder, and be respectively mounted explosion-proof solenoid valve in import and export；Described explosion-proof solenoid valve external thermal source pipeline,
The temperature signal that its switch is sent by the temperature sensor being arranged on hollow cylinder controls.
The side of described hollow cylinder is also equipped with the liquidometer in order to monitor water level in real time.
Described baffle plate is crescent shape, two reducing circles intersect and form, in order to reduce the restriction loss of gas.
A kind of gas-water separation back-fire relief explosion venting device that the present invention proposes, uses technique scheme, in the effect of porous plate I
Under, gas flow speed redistributes, and makes gas VELOCITY DISTRIBUTION axially symmetricization, and the impact to liquid level is uniform, it is to avoid produces air gap, has
Effect prevents flame transmission；Gas from air inlet pipe flow out after from water on gush, from the water surface after the broken bubble, current-sharing of porous plate II
Uniformly gush out, it is to avoid water level fluctuation produces air gap, and its circulation area is more than intake elbow circulation area, reduces crushing；
Gas is with certain moisture when the water surface is gushed out, and a part is condensed into aqueous water in staving, meets baffle in gas outlet,
In gas, water droplet collides with baffle plate, loses kinetic energy and separates with gas, and the discharge opening through baffle plate side flows into this device, reduces
The water content of downstream line；When system pressure superpressure, venting of dust explosion sheet along weak link tensile failure, pressure of releasing, ensure gas
Extraction station and the safety of underground coal mine.Air inlet pipe is by water seal, and air-gap-free, and flame is met water and extinguished, it is impossible to entering of this device incoming
Gas end pipeline, has ensured the safety of Taked gas out process and underground coal mine；
In sum, the present invention has sloughed the aqueous water in gas, effectively prevents explosive flame to propagate, and can level pressure release quick-fried
Fried pressure；There is automatic heating function, feature applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the serpentine heating pipe of the present invention scheme of installation in hollow cylinder.
Fig. 4 is the structural representation of porous plate I in the present invention.
Fig. 5 is porous plate II structural representation in the present invention.
Fig. 6 is the structural representation of baffle plate in the present invention.
Fig. 7 is heating and manually benefit, drainage system figure automatically in the present invention.
Fig. 8 is the structural representation of venting of dust explosion sheet in the present invention.
Fig. 9 is the top view of Fig. 8.
In figure: 1, soil cleaning port；2, serpentine heating pipe；3, porous plate I；4, air inlet pipe；5, venting of dust explosion mouth；6, escape pipe；7, gear
Plate；8, discharge opening；9, filler；10, porous plate II；11, dewatering outlet；12, liquidometer；13, high-order dewatering outlet；14, connector.
Detailed description of the invention
In conjunction with accompanying drawing be embodied as case the present invention is illustrated:
As shown in Figure 1 and Figure 2, a kind of gas-water separation back-fire relief explosion venting device, described gas-water separation back-fire relief explosion venting device includes use
Air inlet pipe 4 and closed at both ends (hollow cylinder with perfusion gas；A side wall surface of hollow cylinder is provided with and extension tube attached
The filler 9 of road connection；The water of the cavity between described air inlet pipe 4 and hollow cylinder carries out water seal to the gas in air inlet pipe；
The upper end of described air inlet pipe 4 is bend loss, and hollow cylinder is stretched out in the upper end of bend loss；Bend loss is 90 ° of settings, bend pipe from
Under the effect of mental and physical efforts, gas collides with bend pipe tube wall, makes the droplet in gas lose kinetic energy and separates with gas；Air inlet pipe
The lower end of described bend loss has and the straight length of hollow cylinder eccentric setting, and the lower end of straight length is positioned at below water seal face；
Binding site at described bend pipe Yu straight length arranges porous plate I 3, and described porous plate I 3 is positioned at water seal face on plan-position
Top；The structure of porous plate I 3 is as shown in Figure 4；Under the effect of porous plate I 3, gas flow speed redistributes, and makes gas speed
Being distributed axially symmetricization, the impact to liquid level is uniform, it is to avoid produces air gap, effectively stops flame transmission；Described in air inlet pipe directly
The lower end of pipeline section is also equipped with porous plate II 4, and described porous plate II 4 is welded in hollow cylinder, and is positioned at described water seal face
Lower section, be used for ensure that gas is uniformly gushed out from the water of hollow cylinder, it is to avoid water level fluctuation produce air gap；Shown in Fig. 5,
Described porous plate II 4 has the eccentric orfice passed in order to straight length described in air inlet pipe, and is evenly equipped with around described eccentric orfice
Multiple equidimension through holes, the circulation area of porous plate II 4, more than the circulation area of air inlet pipe, reduces crushing；Described hollow cylinder
The top of body one side wall surface is provided with escape pipe 6；Described escape pipe 6 has straight length, one end of straight length described in escape pipe 6
Stretch in hollow cylinder, and be welded with the bending section being bent upwards in its termination；Bending section connection hollow cylinder described in escape pipe 6
The cavity of body；It is positioned on the internal face of straight length described in hollow cylinder escape pipe and is welded with in order to the water of gas is hindered
Every baffle plate 7, and there is on the internal face of the straight length inside baffle plate 7 discharge opening 8 that the cavity with air cylinder body connects, watt
This is with certain moisture when the water surface is gushed out, and a part is condensed into aqueous water in staving, meets baffle in gas outlet, watt
In this, water droplet collides with baffle plate, loses kinetic energy and separates with gas, and the discharge opening through baffle plate side flows into this device, under reduction
The water content in play pipe road.Escape pipe the give vent to anger device venting of dust explosion of side ducts phylogenetic blast pressure ripple has guide effect；
In conjunction with Fig. 6, described baffle plate 7, in crescent shape, is intersected by two reducing circles and forms, in order to reduce the restriction loss of gas；Described
The top of hollow cylinder is provided with venting of dust explosion mouth 5, and the top of venting of dust explosion mouth is provided with venting of dust explosion sheet；This device top is provided with venting of dust explosion
Mouthful, the venting of dust explosion sheet that venting of dust explosion mouth is installed can realize level pressure action, thus reaches level pressure venting of dust explosion function.Venting of dust explosion sheet low-pressure side is convex
Rise, the negative pressure produced when gas flows in device can be born.Uniformly slot with reality on venting of dust explosion sheet according to required venting pressure
The now level pressure venting of dust explosion of this device；The bottom of one side wall surface of described hollow cylinder is provided with soil cleaning port 1, and described soil cleaning port 1
Sealed by blind flange；The side of described hollow cylinder also has and discharges water in order to the high position released when water level is higher than water seal face
Mouth 13；When in device, water level reaches higher limit, unnecessary water overflows from high-order dewatering outlet 13；Method is passed through in this high position dewatering outlet 13
The blue external pipe that connects, external pipe other end insertion water mists pond certain depth, gas is carried out water seal, with leakage-preventing；
The bottom of described hollow cylinder side has dewatering outlet 11, opens manual ball valve by water from dewatering outlet when turnaround of unit or when disabling
Discharge.
Described porous plate I uses existing Zanker flow conditioner plate in prior art, does not do too much explanation at this.
Described porous plate I is made up of 32 borings of symmetrical annular spread, and the size in hole is the function of internal diameter of the pipeline D.Have on plate:
A) on 0.25D ± 0.0025 D pitch diameter, the hole of 4 diameter 0.141D ± 0.001D of circle；
B) on 0.56D ± 0.0056 D pitch diameter, the hole of 8 diameter 0.139D ± 0.001D of circle；
C) on 0.75D ± 0.0075 D pitch diameter, the hole of 4 diameter 0.1365D ± 0.001D of circle；
D) on 0.85D ± 0.0085 D pitch diameter, the hole of 8 diameter 0.110D ± 0.001D of circle；
E) on 0.90D ± 0.009 D pitch diameter, the hole of 8 diameter 0.077D ± 0.001D of circle.
The thickness of described porous plate I is D/8.
It is provided with in order to the water in hollow cylinder is entered in cavity between bottom and the bottom surface of hollow cylinder of air inlet pipe
The serpentine heating pipe 2 of row heating；Described serpentine heating pipe 2 is supported in hollow cylinder by angle steel；Described serpentine heating pipe 2
Import and export all stretch out hollow cylinder, and be respectively mounted explosion-proof solenoid valve in import and export；The external heat source tube of described explosion-proof solenoid valve
Road, the temperature signal that its switch is sent by the temperature sensor being arranged on hollow cylinder controls.
The side of described hollow cylinder is also equipped with the liquidometer 12 in order to monitor water level in real time.
It is first turned on filler 9 external pipe ball valve when the present invention works to add water in device, adds to ordinary water level and stop；
Then, low concentration gas enters this device through air inlet pipe 4, and move in a circle generation centrifugal force in air inlet pipe elbow, centrifugal
Under the effect of power, gas collides with air inlet pipe tube wall, makes the droplet in gas lose kinetic energy and separates with gas, is received
Collection is in device.Carry a large amount of aqueous waters built up pipeline section bottom and then flow directly into this device.Low concentration gas is in elbow
When moving in a circle, at flow section, gas angular velocity is consistent, but moving radius is different, thus results in the outer effluent of corner
Speed is higher than curve inner side flow velocity；Under the effect of porous plate I 3, gas flow speed redistributes, and makes gas VELOCITY DISTRIBUTION axially symmetric
Changing, the impact to liquid level is uniform, it is to avoid produces air gap, effectively prevents flame transmission.Gas from air inlet pipe flow out after from water
Gush in, uniformly gush out from the water surface after the broken bubble of porous plate II 10, current-sharing, it is to avoid water level fluctuation produces air gap, and its circulating face
Long-pending more than air inlet pipe circulation area, reduce crushing.The gas uniformly gushed out from the water surface flows to gas outlet 6, stops through baffle plate 7,
In gas, water droplet collides with baffle plate 7, loses kinetic energy and separates with gas, and the discharge opening 8 through baffle plate 7 side flows into this device.
Gas flows out through escape pipe 6.
In once utilizing end tempering or thunderbolt to cause this device outlet side pipeline, gas explodes, and pressure wave is through escape pipe
The elbow of 6 guides, and pressure wave reaches venting of dust explosion mouth 5.When system pressure superpressure, venting of dust explosion sheet (shown in Fig. 8, Fig. 9) is along weak ring
Joint tensile failure, pressure of releasing, ensure Taked gas out process and the safety of underground coal mine.Air inlet pipe is by water seal, and air-gap-free, flame
Chance water extinguishes, it is impossible to the inlet end pipeline of this device incoming, has ensured the safety of Taked gas out process and underground coal mine.
Periodically observe water level or console monitor typewrite by liquidometer, when finding to open manually when liquid level is relatively low or occurs and reports to the police
Ball valve stops moisturizing from filler 9 moisturizing, water level to ordinary water level, it is ensured that effective water seal height of intake elbow.Device is mended, is put
Water system diagram is as shown in Figure 7: water connects filler 9 from elevated tank through manual ball valve and enters this device, by high-order dewatering outlet
13 Auto-drainages, open manual ball valve when turnaround of unit or when disabling and are discharged from dewatering outlet 11 by water.
When this device use occasion temperature is relatively low, such as north of china in winter is outdoor, affects it for water freezing in avoiding device
Use, by water temperature in temperature sensor detector, and controlled the switch of explosion-proof solenoid valve by temperature signal.When water temperature is down to
During lower limit, serpentine heating pipe 2(is as shown in Figure 3) import and export explosion-proof solenoid valve automatically open up, high-temperature water or steam flow into Serpentis
Shape adds heat pipe 2 and water in device is circulated heating, when in device, water temperature rises to higher limit, and the import and export of serpentine heating pipe 2
Explosion-proof solenoid valve is automatically switched off, and heating stops.Automatic heating system figure is as shown in Figure 7.
Low concentration gas moves in a circle in elbow, and at flow section, gas angular velocity is consistent, but moving radius is not
With, the outside flow velocity thus resulting in corner is higher than curve inner side flow velocity, directly contributes intake elbow port of export velocity flow profile and cuts open
Face axially asymmetric, the fast side of flow velocity produces the biggest air gap, easily causes propagation of explosion dangerous.For preventing gas from water being rushed
Hit generation air gap and cause the incoming admission line of flame, increase porous plate I 3 in air inlet pipe, make gas VELOCITY DISTRIBUTION axially symmetricization,
Impact to liquid level is uniform.
For ensureing that gas is uniformly gushed out from the water of device, it is to avoid water level fluctuation produces air gap, ensures the stream of gas simultaneously
Logical area, reduces crushing, installs porous plate II 10 below water seal face, and its circulation area is more than intake elbow circulation area.
This device side is provided with filler 9 and dewatering outlet 11, the external moisturizing in filler 9 pipeline.When liquidometer display device
When interior water level is relatively low or the low warning of liquid level occurs, opening manual ball valve from filler 9 moisturizing, water level to ordinary water level stops mending
Water, it is ensured that effective water seal height of air inlet pipe.Open manual ball valve when turnaround of unit or when disabling to be discharged from dewatering outlet 11 by water.
Connector 14 mounting temperature sensor below this device side, is used for detecting the water temperature in device, and by temperature
Degree signal controls the switch of explosion-proof solenoid valve.
Claims (5)
1. a gas-water separation back-fire relief explosion venting device, it is characterised in that: described gas-water separation back-fire relief explosion venting device includes use
Air inlet pipe (4) and the hollow cylinder of closed at both ends with perfusion gas；A side wall surface of hollow cylinder is provided with external
The filler (9) of pipeline connection；Gas in air inlet pipe is carried out by the water of the cavity between described air inlet pipe (4) and hollow cylinder
Water seal；The upper end of described air inlet pipe (4) is bend loss, and hollow cylinder is stretched out in the upper end of bend loss；Bend loss is 90 ° of settings,
Under the effect of bend pipe centrifugal force, gas collides with bend pipe tube wall, makes the droplet in gas lose kinetic energy and divides with gas
From；The lower end of bend loss described in air inlet pipe has and the straight length of hollow cylinder eccentric setting, and the lower end of straight length is positioned at water
Below front cover；Binding site at described bend pipe Yu straight length arranges porous plate I (3), and described porous plate I (3) is in plane position
Put the top in the water seal face of being positioned at；Under the effect of porous plate I (3), gas flow speed redistributes, and makes gas VELOCITY DISTRIBUTION axial
Symmetrization, the impact to liquid level is uniform, it is to avoid produces air gap, effectively stops flame transmission；Under straight length described in air inlet pipe
End is also equipped with porous plate II (10), and described porous plate II (10) is welded in hollow cylinder, and is positioned at described water seal face
Lower section, is used for ensureing that gas is uniformly gushed out from the water of hollow cylinder, it is to avoid water level fluctuation produces air gap；Described hollow cylinder one
The top of side wall surface is provided with escape pipe (6)；Described escape pipe (6) has straight length, one end of straight length described in escape pipe
Stretch in hollow cylinder, and be welded with the bending section being bent upwards in its termination；Bending section connection described in escape pipe (6) is hollow
The cavity of cylinder；It is positioned on the internal face of straight length described in hollow cylinder escape pipe and is welded with in order to the water of gas is carried out
The baffle plate (7) intercepted, and on the internal face of the straight length of baffle plate (7) inner side, there is the sluicing that the cavity with air cylinder body connects
Mouth (8), condensed water meets baffle, in discharge opening flows into hollow cylinder, reduces the water content of downstream line；Described hollow cylinder
The top of body is provided with venting of dust explosion mouth (5), and the top of venting of dust explosion mouth is provided with venting of dust explosion sheet；One side wall surface of described hollow cylinder
Bottom is provided with soil cleaning port (1), and described soil cleaning port (1) is sealed by blind flange；The side of described hollow cylinder also has use
With the high-order dewatering outlet (13) released when water level is higher than water seal face, described high-order dewatering outlet (13) is by outside Flange joint
Portion's pipeline, the external pipe other end inserts cistern certain depth, it is ensured that the water seal to gas, with leakage-preventing；Described hollow cylinder
The bottom of body side surface has dewatering outlet (11), opens manual ball valve when turnaround of unit or when disabling and is discharged from dewatering outlet by water.
2. a kind of gas-water separation back-fire relief explosion venting device as claimed in claim 1, it is characterised in that: described porous plate II (10) has
There is the eccentric orfice passed in order to straight length described in air inlet pipe, and around described eccentric orfice, be evenly equipped with multiple equidimension through hole,
The circulation area of porous plate II (10), more than the circulation area of air inlet pipe, reduces crushing.
3. a kind of gas-water separation back-fire relief explosion venting device as claimed in claim 1, it is characterised in that: the bottom of air inlet pipe is with hollow
The serpentine heating pipe (2) in order to the water in hollow cylinder to be heated it is provided with in cavity between the bottom surface of cylinder；Described
Serpentine heating pipe (2) be supported in hollow cylinder by angle steel；Hollow cylinder is all stretched out in the import and export of described serpentine heating pipe (2)
Body, and it is respectively mounted explosion-proof solenoid valve in import and export；Described explosion-proof solenoid valve external thermal source pipeline, its switch is hollow by being arranged on
The temperature signal that temperature sensor on cylinder sends controls.
4. a kind of gas-water separation back-fire relief explosion venting device as claimed in claim 1, it is characterised in that: the side of described hollow cylinder
It is also equipped with the liquidometer (12) in order to water level to be monitored in real time.
5. a kind of gas-water separation back-fire relief explosion venting device as claimed in claim 1, it is characterised in that: described baffle plate (7) is in the moon
Tooth shape, is intersected by two reducing circles and forms, in order to reduce the restriction loss of gas.
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| CN107701812A (en) * | 2017-11-21 | 2018-02-16 | 王炯锋 | A kind of natural gas line protection device through walls |
| CN109647109A (en) * | 2019-01-11 | 2019-04-19 | 山东名邦环保科技有限公司 | A kind of dry tail gas minimum discharge equipment of wood-based plate |
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| CN114992526A (en) * | 2022-06-22 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Large-pipe-diameter water-seal fire-retarding explosion-venting device and method for coal mine gas pipeline transportation |
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