CN203669920U - Gas dilution device and gas dilution system - Google Patents
Gas dilution device and gas dilution system Download PDFInfo
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- CN203669920U CN203669920U CN201320879085.6U CN201320879085U CN203669920U CN 203669920 U CN203669920 U CN 203669920U CN 201320879085 U CN201320879085 U CN 201320879085U CN 203669920 U CN203669920 U CN 203669920U
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- outer ring
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- 239000012895 dilution Substances 0.000 title claims abstract description 32
- 238000010790 dilution Methods 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 claims description 160
- 239000000203 mixture Substances 0.000 claims description 30
- 238000007664 blowing Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000000505 pernicious effect Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005422 blasting Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a gas dilution device which comprises an elongated type conical pipe. A circulation cavity for gas circulation is formed in the conical pipe, one end of the conical pipe is a gas outlet end through which gas flows out, the other end of the conical pipe is a gas inlet end through which gas flows in, the radius of the gas outlet end is larger than the radius of the gas inlet end, an annular high-pressure gas inlet chamber is connected to the gas inlet end and is provided with an outer annular face and an inner annular face, an annular gap cavity for high-pressure gas circulation is formed between the inner annular face and the outer annular face, a gas inlet connector through which the high-pressure gas enters is arranged on the outer annular face, the inner annular face is connected to the gas inlet end, an annular gap tilting towards the gas outlet end is formed in the inner annular face, and the circulation cavity is communicated with the annular gap cavity through the annular gap. The utility model further discloses a gas dilution system. The gas dilution device and the gas dilution system are simple in structure, convenient to operate and small in size, have no ignition points, avoid explosion, and are good in dilution effect.
Description
Technical field
The utility model relates in coal mining for diluting the safety means technical field of pernicious gas, particularly a kind of for diluting gas air mix facilities and the gas dilution system of the pernicious gas in the corner of coal-face.
Background technology
In process of coal mining, can produce methane gas etc. pernicious gas, under mine, assemble and arrive to a certain degree as methane gas, easily cause explosion accident.The method of existing control gas explosion generally has two kinds: one is that local gas is diluted to safe range, and another kind is that blast burning things which may cause a fire disaster is not provided.The gas diluter volume now using is relatively large, cannot fix in narrow place, is unfavorable for that down-hole is used, and its gas ejecting becomes direct projection state, is unfavorable for that dilution effect is not good by gas dilution.
Utility model content
Goal of the invention of the present utility model is to overcome defect of the prior art, and a kind of simple in structure, volume is little, dilution effect is good gas air mix facilities and gas dilution system are provided.
Technical solutions of the utility model provide a kind of gas air mix facilities, comprise lengthwise type conical pipe, in described conical pipe, there is the circulation cavity for gas communication, one end of described conical pipe is the gas outlet end flowing out for gas, its other end is the air inlet port end flowing into for gas, the radius of described gas outlet end is greater than the radius of described air inlet port end, on described air inlet port end, be connected with annular high pressure admission chamber, described high pressure admission chamber has annular outer ring surface and annular inner ring surface, between described inner ring surface and described outer ring surface, form the circumferential weld chamber for gases at high pressure circulation of annular, on described outer ring surface, be provided with the intake interface entering for gases at high pressure, described inner ring surface is connected on described air inlet port end, and on described inner ring surface, there is the annulus tilting towards described gas outlet end, described circulation cavity is communicated with described circumferential weld chamber by described annulus.
Further, in the direction of described conical pipe axis, the width of described inner ring surface is less than the width of described outer ring surface, the rear end of described outer ring surface and the in vertical direction mutually concordant setting in the rear end of described inner ring surface, and the first annular junction plate by vertical setting between the rear end of described outer ring surface and the rear end of described inner ring surface links together, the front end of described outer ring surface is extended with a second annular junction plate vertically downward, the end of described the second junction plate is connected with the 3rd annular junction plate being obliquely installed in vertical direction, the end of described the 3rd junction plate tilts towards the front end of described inner ring surface, described annulus is formed between the front end of described inner ring surface and the end of described the 3rd junction plate.
Further, the angle between described the 3rd junction plate and described the second junction plate is between 35 °-55 °.
Further, described outer ring surface, described inner ring surface, described the first junction plate, described the second junction plate and described the 3rd junction plate are one-body molded.
Further, the tapering of described conical pipe is between 2-5 °.
Technical solutions of the utility model also provide a kind of gas dilution system, comprise Blowing drum, outside wind apparatus and the gas air mix facilities of pressing, described gas air mix facilities comprises lengthwise type conical pipe, in described conical pipe, there is the circulation cavity for gas communication, one end of described conical pipe is the gas outlet end flowing out for gas, its other end is the air inlet port end flowing into for gas, the radius of described gas outlet end is greater than the radius of described air inlet port end, the air outlet of described Blowing drum is connected to described air inlet port end by air supply line, on described air inlet port end, be connected with annular high pressure admission chamber, described high pressure admission chamber has annular outer ring surface and annular inner ring surface, between described inner ring surface and described outer ring surface, form the circumferential weld chamber for gases at high pressure circulation of annular, on described outer ring surface, be provided with the intake interface entering for gases at high pressure, the described outside wind apparatus of pressing is connected with described intake interface by pressure air pipe, described inner ring surface is connected on described air inlet port end, and on described inner ring surface, there is the annulus tilting towards described gas outlet end, described circulation cavity is communicated with described circumferential weld chamber by described annulus.
Further, in the direction of described conical pipe axis, the width of described inner ring surface is less than the width of described outer ring surface, the rear end of described outer ring surface and the in vertical direction mutually concordant setting in the rear end of described inner ring surface, and the first annular junction plate by vertical setting between the rear end of described outer ring surface and the rear end of described inner ring surface links together, the front end of described outer ring surface is extended with a second annular junction plate vertically downward, the end of described the second junction plate is connected with the 3rd annular junction plate being obliquely installed in vertical direction, the end of described the 3rd junction plate tilts towards the front end of described inner ring surface, described annulus is formed between the front end of described inner ring surface and the end of described the 3rd junction plate.
Further, the angle between described the 3rd junction plate and described the second junction plate is between 35 °-55 °.
Further, described outer ring surface, described inner ring surface, described the first junction plate, described the second junction plate and described the 3rd junction plate are one-body molded.
Further, the tapering of described conical pipe is between 2-5 °.
Adopt technique scheme, there is following beneficial effect:
By conical pipe is set, the radius of its gas outlet end is greater than the radius of air inlet port end, and air-flow is disperseed away with stratiform from air inlet port end to gas outlet end.By high pressure admission chamber being set at air inlet port end, and on inner ring surface, arrange towards the annulus of the distolateral inclination in described gas outlet, annulus is communicated with circulation cavity and high pressure admission chamber, the indoor gases at high pressure of high pressure admission tilt in the mobile cavity of inflow through annulus, and supercharging diffusion after mixing with the gas of air inlet port end, eject with stratiform form, the pernicious gas in the corner of coal-face is dispelled, reduce its concentration, avoid blasting.In use can not produce spark, safety is higher, installs simply, and volume is little, easy to use.
Brief description of the drawings
The sectional view of the gas air mix facilities that Fig. 1 provides for the utility model;
Fig. 2 is the sectional view of conical pipe;
Fig. 3 is the sectional view of high pressure admission chamber along conical pipe central axis direction;
Fig. 4 is the sectional view of high pressure admission chamber along the width of conical pipe;
The schematic diagram of the gas dilution system that Fig. 5 provides for the utility model;
Fig. 6 is the schematic diagram that the gas dilution system shown in Fig. 5 is placed on the first embodiment on coal-face, the pernicious gas in corner being diluted;
Fig. 7 is the schematic diagram that the gas dilution system shown in Fig. 5 is placed on the second embodiment on coal-face, the pernicious gas in corner being diluted;
Fig. 8 is that the gas dilution system shown in Fig. 5 is placed on the schematic diagram that carries out the first embodiment of voltage stabilizing in goaf;
Fig. 9 is that the gas dilution system shown in Fig. 5 is placed on the schematic diagram that carries out the second embodiment of voltage stabilizing in goaf.
The Reference numeral table of comparisons:
100-gas air mix facilities; 200-gas dilution system; 1-conical pipe;
11-air inlet port end; 12-gas outlet end; The 13-cavity that circulates;
2-high pressure admission chamber; 21-outer ring surface; 22-inner ring surface;
23-circumferential weld chamber; 24-intake interface; 25-annulus;
26-the first junction plate; 27-the second junction plate; 28-the 3rd junction plate;
The outside wind apparatus of pressing of 3-; 31-pressure air pipe; 4-Blowing drum;
41-air supply line; 5-corner; 6-return airway;
7-envelope wall; 8-tunnel; 9-confined chamber.
Detailed description of the invention
Further illustrate detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
As Figure 1-4, the gas air mix facilities 100 that the utility model provides, comprise lengthwise type conical pipe 1, in conical pipe 1, there is the circulation cavity 13 for gas communication, one end of conical pipe 1 is the gas outlet end 12 flowing out for gas, its other end is the air inlet port end 11 flowing into for gas, the radius of gas outlet end 12 is greater than the radius of air inlet port end 11, on air inlet port end 11, be connected with annular high pressure admission chamber 2, high pressure admission chamber 2 has annular outer ring surface 21 and annular inner ring surface 22, between inner ring surface 22 and outer ring surface 21, form the circumferential weld chamber 23 for gases at high pressure circulation of annular, on outer ring surface 21, be provided with the intake interface 24 entering for gases at high pressure, inner ring surface 22 is connected on air inlet port end 12, and on inner ring surface 22, there is the annulus 25 tilting towards gas outlet end 12, circulation cavity 13 is communicated with circumferential weld chamber 23 by annulus 25.
This gas air mix facilities 100 comprises conical pipe 1, and conical pipe 1 is lengthwise type, and lengthwise type refers to that its length is greater than the shape of width along length extension.One end of conical pipe 1 is thin, and one end is thick, its taper end, and one end that radius is less is air inlet port end 11; Its butt end, one end that radius is larger is gas outlet end 12.In conical pipe 1, be formed with circulation cavity 13, circulation cavity 13 connect air inlet port end 11 and gas outlet end 12, for gas in interior circulation.
On air inlet port end 11, be connected with high pressure admission chamber 2, high pressure admission chamber 2 is from being seen as annular along the central axis direction of conical pipe 1, and it is for receive high-pressure blast from outside, then gases at high pressure are pressed in circulation cavity 13.High pressure admission chamber 2 comprises annular outer ring surface 21 and annular inner ring surface 22, is formed with annular circumferential weld chamber 23 between inner ring surface 22 and outer ring surface 21, for the accommodating high-pressure blast flowing into from intake interface 24.Inner ring surface 22 is connected on air inlet port end 11, and it has annulus 25, and annulus 25 is communicated with circumferential weld chamber 23 with circulation cavity 12, for the high-pressure blast in circumferential weld chamber 23 is imported in circulation cavity 12.
When use, press wind apparatus to pour into gases at high pressure or compressed gas in the circumferential weld chamber 23 of high pressure admission chamber 2 by outside, the gas entering circulates in cavity 13 through annulus 25.Because annulus 25 tilts towards gas outlet end 12, after spreading apart in gases at high pressure circulate cavity 13, gas is pushed to gas outlet end 12, be beneficial to the speed of the eluting gas that improves the port 12 of giving vent to anger, and be beneficial to Compressed Gas is sprayed with stratiform, but not direct projection ejection has expanded active area.Be conical pipe by install pipeline, circulation cavity 13 is set to conical cavity, and the radius of gas outlet end 12 is greater than the radius of air inlet port end 11, be beneficial to Compressed Gas after diffusion, spread to gas outlet end 12 rapidly, ejection at a high speed, it is also beneficial to Compressed Gas is sprayed with stratiform form, improve the active area of ejection gas, improve dilution effect.
Air inlet port end 11 has injection air-flow, can be the gas of sending into by common Blowing drum.Enter an interior time in circumferential weld chamber 23 at outside compressed air, expanded, improve flow velocity, produce low pressure and negative pressure and by annulus 25 cavity 13 that circulates simultaneously, and after mixing with the injection air-flow at air inlet port end 11 places, in the circulation cavity 13 of taper, spread towards gas outlet end 12, then go out with high velocity jet.Under the effect of annular circumferential weld chamber 23, annulus 25 and injection air-flow, the high velocity air track being produced by negative pressure is to flow with stratiform state, finally ejects with stratiform form, and the pernicious gas in the corner of coal-face is dispelled, reduce its concentration, avoid blasting.Owing to adopting the outside wind apparatus of pressing as power, it in use can not produce spark, and safety is higher, installs simply, and volume is little, easy to use.
Thus, the gas air mix facilities 100 that the utility model provides, simple in structure, volume is little, without ignition point, avoid blast, dilution effect is good.
Preferably, as Fig. 1, shown in Fig. 3 and Fig. 4, in conical pipe 1 axis direction, the width of inner ring surface 22 is less than the width of outer ring surface 21, the in vertical direction mutually concordant setting in rear end of the rear end of outer ring surface 21 and inner ring surface 22, and the first annular junction plate 26 by vertical setting between the rear end of the rear end of outer ring surface 21 and inner ring surface 22 links together, the front end of outer ring surface 21 is extended with a second annular junction plate 27 vertically downward, the end of the second junction plate 27 is connected with the 3rd annular junction plate 28 being obliquely installed in vertical direction, the end of the 3rd junction plate 28 tilts towards the front end of inner ring surface 22, annulus 25 is formed between the front end of inner ring surface 22 and the end of the 3rd junction plate 28.
In the utility model, involved front and rear is comparatively speaking, on the direction from air inlet port end 11 to gas outlet end 12,, in the direction of air current flow, is positioned at the front or front end that is referred to as of upstream, and being positioned at the sincere of downstream is rear or rear end.1 front end of outer ring surface 21 refers to one end away from air inlet port end 11 on outer ring surface 21, and its rear end refers to one end near air inlet port end 11 on outer ring surface 21.Above-mentioned appellation is equally applicable to inner ring surface 22, repeats no more.
The width of inner ring surface 22 is less than the width of outer ring surface 21, and the in vertical direction mutually concordant setting in rear end of the rear end of outer ring surface 21 and inner ring surface 22, after the front end of inner ring surface 22 is positioned at the front end of outer ring surface 21.Between the rear end of inner ring surface 22 and the rear end of outer ring surface 21, be connected the first junction plate 26, the first junction plates 26 and be seen as annular along the central axis direction of conical tube 1.Extend the second junction plate 27, the second junction plates 27 downwards at the front end of outer ring surface 21 and seeing to be also annular along the central axis direction of conical tube 1.Connect the 3rd connection at the end of the second junction plate 27 and do 28, the 3rd junction plate 28 is seeing to be also annular along the central axis direction of conical tube 1, and the 3rd junction plate 28 is obliquely installed, it tilts towards inner ring surface 21, thus, the end of the 3rd junction plate 28 tilts to extend towards the front end of inner ring surface 22, and forms annulus 25 between the end of the 3rd junction plate 28 and the front end of inner ring surface 22.Between inner ring surface 22, outer ring surface 21, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28, form the circumferential weld chamber 25 of annular.
By the 3rd junction plate 28 is obliquely installed towards inner ring surface 22, be convenient to that outside Blowing drum blows distinguished and admirable enter air intake end 11, intake is large, is beneficial to raising gas flow rate.
Angle between the 3rd junction plate 28 and the second junction plate 27 is between 35 °-55 °.The 3rd junction plate 28 rolls oblique 35 °-55 ° towards inner ring surface 22 in vertical direction, 50 ° of preferred angled, the intake maximum of air intake end 11.
In order to improve the structural strength of whole high pressure admission chamber 2, outer ring surface 21, inner ring surface 22, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28 are one-body molded.By one-body molded by integral forming process to outer ring surface 21, inner ring surface 22, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28, structural strength is high, wear-resistant.
As shown in Figure 1-2, the tapering of conical pipe 1 is between 2-5 °, and its tapering is preferably 3 °, is beneficial to the interior gas diffusion of circulation cavity 13 ejection of taper.The tapering of circulation cavity 13 is identical with the tapering of conical pipe 1.
As shown in Figure 5, the gas dilution system 200 that the utility model provides, comprise Blowing drum 4, outside wind apparatus 3 and the gas air mix facilities 100 of pressing, shown in Fig. 1-4, gas air mix facilities 100 comprises lengthwise type conical pipe 1, in conical pipe 1, there is the circulation cavity 13 for gas communication, one end of conical pipe 1 is the gas outlet end 12 flowing out for gas, its other end is the air inlet port end 11 flowing into for gas, the radius of gas outlet end 12 is greater than the radius of air inlet port end 11, the air outlet of Blowing drum 4 is connected to air inlet port end 11 by air supply line 41, on air inlet port end 11, be connected with annular high pressure admission chamber 2, high pressure admission chamber 2 has annular outer ring surface 21 and annular inner ring surface 22, between inner ring surface 21 and outer ring surface 22, form the circumferential weld chamber 25 for gases at high pressure circulation of annular, outer ring surface 21 is equipped with the intake interface 24 entering for gases at high pressure, the outside wind apparatus 3 of pressing is connected with intake interface 24 by pressure air pipe 31, inner ring surface 22 is connected on air inlet port end 11, and on inner ring surface 21, there is the annulus 25 tilting towards gas outlet end 12, circulation cavity 13 is communicated with circumferential weld chamber 23 by annulus 25.
The structure of the gas air mix facilities 100 in gas dilution system 200 is identical with structure and the operating principle of the gas air mix facilities 100 mentioned above with operating principle, does not repeat them here.
Thus, the gas dilution system 200 that the utility model provides, simple in structure, easy to operate, volume is little, without ignition point, avoid blast, dilution effect is good.
Preferably, as Fig. 1, shown in Fig. 3 and Fig. 4, in conical pipe 1 axis direction, the width of inner ring surface 22 is less than the width of outer ring surface 21, the in vertical direction mutually concordant setting in rear end of the rear end of outer ring surface 21 and inner ring surface 22, and the first annular junction plate 26 by vertical setting between the rear end of the rear end of outer ring surface 21 and inner ring surface 22 links together, the front end of outer ring surface 21 is extended with a second annular junction plate 27 vertically downward, the end of the second junction plate 27 is connected with the 3rd annular junction plate 28 being obliquely installed in vertical direction, the end of the 3rd junction plate 28 tilts towards the front end of inner ring surface 22, annulus 25 is formed between the front end of inner ring surface 22 and the end of the 3rd junction plate 28.
In the utility model, involved front and rear is comparatively speaking, on the direction from air inlet port end 11 to gas outlet end 12,, in the direction of air current flow, is positioned at the front or front end that is referred to as of upstream, and being positioned at the sincere of downstream is rear or rear end.1 front end of outer ring surface 21 refers to one end away from air inlet port end 11 on outer ring surface 21, and its rear end refers to one end near air inlet port end 11 on outer ring surface 21.Above-mentioned appellation is equally applicable to inner ring surface 22, repeats no more.
The width of inner ring surface 22 is less than the width of outer ring surface 21, and the in vertical direction mutually concordant setting in rear end of the rear end of outer ring surface 21 and inner ring surface 22, after the front end of inner ring surface 22 is positioned at the front end of outer ring surface 21.Between the rear end of inner ring surface 22 and the rear end of outer ring surface 21, be connected the first junction plate 26, the first junction plates 26 and be seen as annular along the central axis direction of conical tube 1.Extend the second junction plate 27, the second junction plates 27 downwards at the front end of outer ring surface 21 and seeing to be also annular along the central axis direction of conical tube 1.Connect the 3rd connection at the end of the second junction plate 27 and do 28, the 3rd junction plate 28 is seeing to be also annular along the central axis direction of conical tube 1, and the 3rd junction plate 28 is obliquely installed, it tilts towards inner ring surface 21, thus, the end of the 3rd junction plate 28 tilts to extend towards the front end of inner ring surface 22, and forms annulus 25 between the end of the 3rd junction plate 28 and the front end of inner ring surface 22.Between inner ring surface 22, outer ring surface 21, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28, form the circumferential weld chamber 25 of annular.
By the 3rd junction plate 28 is obliquely installed towards inner ring surface 22, be convenient to that outside Blowing drum blows distinguished and admirable enter air intake end 11, intake is large, is beneficial to raising gas flow rate.
Angle between the 3rd junction plate 28 and the second junction plate 27 is between 35 °-55 °.The 3rd junction plate 28 rolls oblique 35 °-55 ° towards inner ring surface 22 in vertical direction, 50 ° of preferred angled, the intake maximum of air intake end 11.
In order to improve the structural strength of whole high pressure admission chamber 2, outer ring surface 21, inner ring surface 22, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28 are one-body molded.By one-body molded by integral forming process to outer ring surface 21, inner ring surface 22, the first junction plate 26, the second junction plate 27 and the 3rd junction plate 28, structural strength is high, wear-resistant.
As shown in Figure 1-2, the tapering of conical pipe 1 is between 2-5 °, and its tapering is preferably 3 °, is beneficial to the interior gas diffusion of circulation cavity 13 ejection of taper.The tapering of circulation cavity 13 is identical with the tapering of conical pipe 1.
As shown in Fig. 6-7, when use, gas air mix facilities 100 is hung on coal-face, aim at the methane accumulation place in upper corner 5.Pressure air pipe 31 is embedded in return airway 6.The air intake end 11 of the conical pipe of gas air mix facilities 100 1 is aimed at corner 5 by Fig. 6, opens outside pressure after wind apparatus 3, and the gas in corner 5 can be drawn out of, and gas is extracted out from gas outlet end 12, can transfer to desired location, carries out fuel exploitation.
Fig. 7 is that the air opening end 12 of the conical pipe 1 of just gas air mix facilities 100 is aimed at corner 5, opens outside pressure after wind apparatus 3, and the gas in corner 5 can be dispelled, and the gas density in watt reduction corner 5, avoids blast.
As Figure 8-9, gas air mix facilities 100 can be arranged on to goaf confined chamber 9 places in tunnel 8, for the pressure of balance confined chamber 9.Confined chamber is isolated by envelope wall 7, and due to the effect of external pressure, the gas in confined chamber 9 may flow out or flow into from outside.In the time that the gas in envelope chamber 9 flows out, as shown in Figure 8, gas air mix facilities 100 is installed at envelope wall place, its air opening end 12 is aimed to confined chamber 9, to confined chamber 9 air feed, form zone of positive pressure at sealing area, maintain pressure stability.When extraneous gas flows into confined chamber 9, as shown in Figure 9, gas air mix facilities 100 is installed at envelope wall place, its air intake end 11 is aimed to confined chamber 9, from confined chamber 9, gas is extracted out, form positive minus zone at sealing area, maintain pressure stability.By maintaining confined chamber pressure stability, avoid gas overflowing in goaf.
As required, above-mentioned each technical scheme can be carried out to combination, to reach best-of-breed technology effect.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the utility model principle, can also make some other modification, also should be considered as protection domain of the present utility model.
Claims (10)
1. a gas air mix facilities, comprise lengthwise type conical pipe, in described conical pipe, there is the circulation cavity for gas communication, one end of described conical pipe is the gas outlet end flowing out for gas, its other end is the air inlet port end flowing into for gas, the radius of described gas outlet end is greater than the radius of described air inlet port end, it is characterized in that, on described air inlet port end, be connected with annular high pressure admission chamber, described high pressure admission chamber has annular outer ring surface and annular inner ring surface, between described inner ring surface and described outer ring surface, form the circumferential weld chamber for gases at high pressure circulation of annular,
On described outer ring surface, be provided with the intake interface entering for gases at high pressure, described inner ring surface is connected on described air inlet port end, and on described inner ring surface, have the annulus tilting towards described gas outlet end, described circulation cavity is communicated with described circumferential weld chamber by described annulus.
2. a kind of gas air mix facilities according to claim 1, is characterized in that,
In the direction of described conical pipe axis, the width of described inner ring surface is less than the width of described outer ring surface,
The rear end of described outer ring surface and the in vertical direction mutually concordant setting in the rear end of described inner ring surface, and between the rear end of described outer ring surface and the rear end of described inner ring surface, the first annular junction plate by vertical setting links together,
The front end of described outer ring surface is extended with a second annular junction plate vertically downward, the end of described the second junction plate is connected with the 3rd annular junction plate being obliquely installed in vertical direction, the end of described the 3rd junction plate tilts towards the front end of described inner ring surface, and described annulus is formed between the front end of described inner ring surface and the end of described the 3rd junction plate.
3. a kind of gas air mix facilities according to claim 2, is characterized in that, the angle between described the 3rd junction plate and described the second junction plate is between 35 °-55 °.
4. a kind of gas air mix facilities according to claim 2, is characterized in that, described outer ring surface, described inner ring surface, described the first junction plate, described the second junction plate and described the 3rd junction plate are one-body molded.
5. a kind of gas air mix facilities according to claim 1, is characterized in that, the tapering of described conical pipe is between 2-5 °.
6. a gas dilution system, is characterized in that, comprises Blowing drum, outside wind apparatus and the gas air mix facilities of pressing,
Described gas air mix facilities comprises lengthwise type conical pipe, in described conical pipe, there is the circulation cavity for gas communication, one end of described conical pipe is the gas outlet end flowing out for gas, its other end is the air inlet port end flowing into for gas, the radius of described gas outlet end is greater than the radius of described air inlet port end, the air outlet of described Blowing drum is connected to described air inlet port end by air supply line
On described air inlet port end, be connected with annular high pressure admission chamber, described high pressure admission chamber has annular outer ring surface and annular inner ring surface, forms the circumferential weld chamber for gases at high pressure circulation of annular between described inner ring surface and described outer ring surface,
On described outer ring surface, be provided with the intake interface entering for gases at high pressure, the described outside wind apparatus of pressing is connected with described intake interface by pressure air pipe,
Described inner ring surface is connected on described air inlet port end, and on described inner ring surface, has the annulus tilting towards described gas outlet end, and described circulation cavity is communicated with described circumferential weld chamber by described annulus.
7. a kind of gas dilution system according to claim 6, is characterized in that, in the direction of described conical pipe axis, the width of described inner ring surface is less than the width of described outer ring surface,
The rear end of described outer ring surface and the in vertical direction mutually concordant setting in the rear end of described inner ring surface, and between the rear end of described outer ring surface and the rear end of described inner ring surface, the first annular junction plate by vertical setting links together,
The front end of described outer ring surface is extended with a second annular junction plate vertically downward, the end of described the second junction plate is connected with the 3rd annular junction plate being obliquely installed in vertical direction, the end of described the 3rd junction plate tilts towards the front end of described inner ring surface, and described annulus is formed between the front end of described inner ring surface and the end of described the 3rd junction plate.
8. a kind of gas dilution system according to claim 7, is characterized in that, the angle between described the 3rd junction plate and described the second junction plate is between 35 °-55 °.
9. a kind of gas dilution system according to claim 7, is characterized in that, described outer ring surface, described inner ring surface, described the first junction plate, described the second junction plate and described the 3rd junction plate are one-body molded.
10. a kind of gas dilution system according to claim 6, is characterized in that, the tapering of described conical pipe is between 2-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879085.6U CN203669920U (en) | 2013-12-27 | 2013-12-27 | Gas dilution device and gas dilution system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879085.6U CN203669920U (en) | 2013-12-27 | 2013-12-27 | Gas dilution device and gas dilution system |
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| CN203669920U true CN203669920U (en) | 2014-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035767A (en) * | 2018-01-04 | 2018-05-15 | 山西正大恒通科技有限公司 | Coal mine gas injecting system and for flow type pump with injection device therein |
| CN113047856A (en) * | 2021-03-31 | 2021-06-29 | 中铁工程装备集团有限公司 | Earth pressure shield machine for harmful gas-rich stratum and tunnel construction method |
-
2013
- 2013-12-27 CN CN201320879085.6U patent/CN203669920U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035767A (en) * | 2018-01-04 | 2018-05-15 | 山西正大恒通科技有限公司 | Coal mine gas injecting system and for flow type pump with injection device therein |
| CN113047856A (en) * | 2021-03-31 | 2021-06-29 | 中铁工程装备集团有限公司 | Earth pressure shield machine for harmful gas-rich stratum and tunnel construction method |
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