CN211901077U - Self-suction device of gas pressurizer - Google Patents
Self-suction device of gas pressurizer Download PDFInfo
- Publication number
- CN211901077U CN211901077U CN202020537616.3U CN202020537616U CN211901077U CN 211901077 U CN211901077 U CN 211901077U CN 202020537616 U CN202020537616 U CN 202020537616U CN 211901077 U CN211901077 U CN 211901077U
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- gas
- inlet pipe
- gas inlet
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- pressurizer
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 2
- 239000003034 coal gas Substances 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003245 coal Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 226
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000000926 separation method Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a coal gas presser is from inhaling device belongs to the coal press field, has solved coal gas and has leaked to outdoor technical problem from coal gas presser axis of rotation and coal gas presser shell contact department. The gas pressurizing device comprises a first gas inlet pipe, a second gas inlet pipe and a gas pipeline, wherein one end of the first gas inlet pipe is connected with a suction end of the gas pressurizing device and forms a first gas chamber in the first gas inlet pipe, and the other end of the first gas inlet pipe is fixed on the gas pipeline; the second gas inlet pipe is arranged on the inner wall, close to the gas pipeline, of the first gas inlet pipe, the cross section area of the second gas inlet pipe is gradually reduced towards the direction of the gas pressurizer, and a second gas chamber is formed inside the second gas inlet pipe; the sealing ring is arranged on the periphery of the shell of the gas pressurizer close to the rotating shaft, and a gas collecting chamber is formed on the sealing ring; and the communicating pipeline is arranged between the sealing ring and the first gas inlet pipe and communicates the gas collecting chamber with the first gas chamber. The utility model has the effect of the gas leakage to the outdoor polluted air in the process of pressurizing the gas by the gas pressurizing machine.
Description
Technical Field
The utility model belongs to the technical field of the coal press and specifically relates to a coal gas presser is from inhaling device.
Background
The gas pressurizer is widely used in various fields as a device for pressurizing gas, and the pressurized gas is increased in flow velocity to increase its kinetic energy and then supplied to any device requiring gas. Such as: steel furnaces, shaft furnaces, blast furnaces and the like. The coal gas pressurized by the coal press obtains higher kinetic energy, so the output static pressure is higher, and the coal gas pressure regulating device can meet the requirements of various boilers.
The existing gas pressurizing machine and the gas pipeline are connected through a gas conveying pipe 1, an impeller 14 in the gas pressurizing machine is driven by a driving shaft 3 to rotate so as to increase the flow rate of gas, accelerated gas flows through the impeller 14 and is conveyed to a boiler through a gas outlet (not shown) arranged on a shell 12, and the flow direction of the gas is indicated by an arrow in figure 1.
The above prior art solutions have the following drawbacks: 1. in order to ensure that the impeller rotates, there are small gaps between the rotating shaft of the gas pressurizer and the casing of the gas pressurizer, but these gaps are sufficient to cause the gas not to be completely delivered from the gas outlet into the boiler, but a small amount of gas leaks to the outside, causing air pollution and endangering human health. 2. The existing method of preventing gas from being discharged to the outside by the nitrogen gas impacting against the gap between the rotating shaft and the outer shell causes waste of the nitrogen gas and also causes cost increase because of consumption of the nitrogen gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coal gas pressure machine is from inhaling device to prior art exists, it has the effect that prevents that coal gas from leaking to outdoor, causes air pollution and endangers health.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a self-priming device of a gas pressurizing machine comprises:
one end of the first gas inlet pipe is connected with the suction end of the gas pressurizer and forms a first gas chamber in the first gas inlet pipe, and the other end of the first gas inlet pipe is fixed on the gas pipeline;
the second gas inlet pipe is arranged on the inner wall, close to the gas pipeline, of the first gas inlet pipe, the cross section area of the second gas inlet pipe is gradually reduced towards the direction of the gas pressurizer, and a second gas chamber is formed inside the second gas inlet pipe;
the sealing ring is arranged on the periphery of the shell of the gas pressurizer close to the rotating shaft, and a gas collecting chamber is formed on the sealing ring;
and the communicating pipeline is arranged between the sealing ring and the first gas inlet pipe and communicates the gas collecting chamber with the first gas chamber.
Through adopting above-mentioned technical scheme, coal gas gets into the second air chamber from the gas conduit, because the second coal gas admission pipe is the cross-sectional area to keeping away from the conical tube that the gas conduit direction reduces gradually, so the gas can appear the velocity of flow increase when the little cross-sectional end through the coal gas admission pipe, can produce the low pressure near the coal gas that flows at a high speed, form the venturi effect, the atmospheric pressure of the position department of being close to the second air chamber in the first air chamber is lower, the atmospheric pressure that is located axis of rotation and shell position department is obviously higher than the atmospheric pressure that the first air chamber is close to the second air chamber department. At this time, once a leakage point is formed between the rotating shaft and the housing, the leaked gas is concentrated into the gas collecting chamber, and since the communicating pipe communicates the gas collecting chamber with the first gas chamber, the leaked gas flows from the gas collecting chamber (high pressure point) to the first gas chamber (low pressure point). Therefore, the leaked gas is not discharged to the outdoor polluted air, and the gas does not need to be resisted to be leaked by supplementing other gas (such as nitrogen), thereby avoiding the increase of the cost.
The present invention may be further configured in a preferred embodiment as: and a circle of partition plate is arranged between the inner wall of the first gas inlet pipe and the outer wall of the second gas inlet pipe, and at least one throttling hole is formed in the partition plate.
Through adopting above-mentioned technical scheme, set up the baffle and can play the supporting role to second coal gas admission pipe, the baffle is cut apart into negative pressure chamber and inflation chamber with first air chamber moreover, has guaranteed that the atmospheric pressure in the negative pressure chamber by the intercommunication pipeline intercommunication is less than the atmospheric pressure of coal gas collection room always, makes the coal gas of leaking can circulate to first air chamber. The provision of a plurality of orifices in the partition plate can throttle the gas entering the first gas chamber from the communication duct.
The present invention may be further configured in a preferred embodiment as: the first gas inlet pipe and the second gas inlet pipe are both in the shape of a hollow cylinder or hollow conical bodies, and the sectional areas of the hollow conical bodies gradually decrease towards the gas pressurizing machine.
By adopting the technical scheme, the second gas inlet pipe is a conical pipe with the cross section area gradually reduced towards the direction far away from the gas pipeline, so that the flow speed of the gas is increased when the gas passes through the small-section end, and low pressure is generated near the gas flowing at high speed to form a Venturi effect; because the first gas inlet pipe is a conical pipe with the cross-sectional area gradually decreasing towards the direction far away from the gas pipeline, the gas pressure in the first gas chamber is gradually increased, so that the gas pressure at the position of the rotating shaft and the shell is obviously higher than that of the first gas chamber close to the second gas chamber.
The present invention may be further configured in a preferred embodiment as: the three return pipes are connected between the communicating pipeline and the first coal gas inlet pipe.
Through adopting above-mentioned technical scheme, the one end of three back flow pipe is connected respectively on first coal gas admission pipe, can form a plurality of backward flows mouths on first coal gas admission pipe, and the other end of three back flow pipe assembles and connects together on the intercommunication pipeline, so makes every back flow pipe connect first coal gas admission pipe department atmospheric pressure unanimous relatively.
The present invention may be further configured in a preferred embodiment as: and the communicating pipeline is provided with a flowmeter for flow regulation.
Through adopting above-mentioned technical scheme, observe the gas flow who shows on the flowmeter, can adjust the valve in the flowmeter in order to control the size of the gas flow of circulation in the intercommunication pipeline.
The present invention may be further configured in a preferred embodiment as: the sealing ring is a labyrinth seal.
By adopting the technical scheme, the labyrinth seal comprises a plurality of annular seal teeth which are arranged around the rotating shaft in sequence, a series of closure gaps and expansion cavities are formed between the teeth, and the sealed coal gas generates a throttling effect when passing through the gaps of the zigzag labyrinth.
The present invention may be further configured in a preferred embodiment as: the first gas inlet pipe is connected with the gas pipeline through a flange plate.
By adopting the technical scheme, the connection mode of the flange plate is convenient for realizing the connection or the separation of the first gas inlet pipe and the gas pipeline.
The present invention may be further configured in a preferred embodiment as: the first gas inlet pipe is connected with the suction end of the gas pressurizer through a flange plate.
By adopting the technical scheme, the connection mode of the flange plate is convenient for realizing the connection or the separation of the first coal gas inlet pipe and the suction port end of the coal gas pressurizing machine.
The present invention may be further configured in a preferred embodiment as: and an impeller is arranged on a rotating shaft in the shell of the coal gas pressurizer, and the inner side wall of the shell and the impeller are both provided with an anticorrosive coating.
By adopting the technical scheme, the arrangement of the anti-corrosion coating can prevent the shell and the impeller from being corroded by coal gas or other corrosive gases, so that the coal gas pressurizer is damaged prematurely.
The present invention may be further configured in a preferred embodiment as: the shell is provided with an air outlet.
By adopting the technical scheme, the gas flow speed is increased under the driving of the impeller, so that the kinetic energy of the gas is increased, and the accelerated gas continuously flows through the impeller and is conveyed to the steelmaking furnace from the gas outlet.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through adopting above-mentioned technical scheme, coal gas gets into the second air chamber from the gas conduit, because the second coal gas admission pipe is the cross-sectional area to keeping away from the conical tube that the gas conduit direction reduces gradually, so the gas can appear the velocity of flow increase when the little cross-sectional end through the coal gas admission pipe, can produce the low pressure near the coal gas that flows at a high speed, form the venturi effect, the atmospheric pressure of the position department of being close to the second air chamber in the first air chamber is lower, the atmospheric pressure that is located axis of rotation and shell position department is obviously higher than the atmospheric pressure that the first air chamber is close to the second air chamber department. At this time, once a leakage point is formed between the rotating shaft and the housing, the leaked gas is concentrated into the gas collecting chamber, and since the communicating pipe communicates the gas collecting chamber with the first gas chamber, the leaked gas flows from the gas collecting chamber (high pressure point) to the first gas chamber (low pressure point). Therefore, the leaked gas is not discharged to the outdoor polluted air, and the gas does not need to be resisted to be leaked by supplementing other gas (such as nitrogen), thereby avoiding the increase of the cost.
2. Through adopting above-mentioned technical scheme, set up the baffle and can play the supporting role to second coal gas admission pipe, the baffle is cut apart into negative pressure chamber and inflation chamber with first air chamber moreover, has guaranteed that the atmospheric pressure in the negative pressure chamber by the intercommunication pipeline intercommunication is less than the atmospheric pressure of coal gas collection room always, makes the coal gas of leaking can circulate to first air chamber. The provision of a plurality of orifices in the partition plate can throttle the gas entering the first gas chamber from the communication duct.
Drawings
FIG. 1 is a schematic view of a gas pressurizing machine and a gas pipeline connected together in the prior art;
fig. 2 is a schematic structural view of a self-priming device of a gas pressurizer according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of the self-priming device of the gas pressurizing machine of FIG. 2;
fig. 4 is a schematic structural view of a self-priming device of a gas pressurizer according to a second embodiment of the present invention;
FIG. 5 is a cross-sectional view A-A of the self-priming device of the gas pressurizing machine of FIG. 4;
in the figure, 10, a gas pressurizer; 11. a suction end; 21. A first air chamber; 20. a first gas inlet pipe; 30. a second gas inlet pipe; 31. a second air chamber; 12. a housing; 13. a rotating shaft; 40. a seal ring; 41. a gas collection chamber; 50. a communicating pipe; 14. an impeller; 32. a large cross-sectional end; 33. a small cross-sectional end; 70. a flange plate; 60. a flow meter; 80. a partition plate; 81. an orifice; 211. a negative pressure chamber; 212. an expansion chamber; 1. a gas delivery pipe; 3. a drive shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 2 and 3, fig. 2 is a schematic structural view of a self-priming device of a gas pressurizing machine according to an embodiment of the present invention, and specifically, fig. 2 is a sectional view of a housing and a left side portion of the housing of the gas pressurizing machine; fig. 3 is a cross-sectional view a-a of the self-priming device of the gas pressurizing machine of fig. 2, and the arrows in fig. 3 illustrate the gas flowing back through the communication pipe 50. A self-priming device of a gas pressurizing machine comprises: a first gas inlet pipe 20 with one end connected with the suction end 11 of the gas pressurizing machine 10 and used for forming a first gas chamber 21, the other end of the first gas inlet pipe 20 is fixed on a gas pipeline (not shown), a conical second gas inlet pipe 30 with the sectional area gradually reduced towards the gas pressurizing machine 10 is arranged on the inner wall of the first gas inlet pipe 20 close to the gas pipeline, a second gas chamber 31 is formed inside the second gas inlet pipe 30, a sealing ring 40 is arranged on the periphery of the shell 12 of the gas pressurizing machine 10 close to the rotating shaft 13, a gas collecting chamber 41 is formed on the sealing ring 40, and a communicating pipeline 50 for communicating the gas collecting chamber 41 with the first gas chamber 21 is arranged between the sealing ring 40 and the first gas inlet pipe 20.
The rotating shaft 13 is provided with an impeller 14 rotating along with the rotating shaft, the impeller 14 is sealed in a shell 12 of the gas pressurizer 10, and the shell 12 is provided with an air outlet (not shown) near the outer circumference of the impeller 14.
The first gas inlet pipe 20 and the second gas inlet pipe 30 are both in the shape of a hollow cylinder or a hollow cone having a sectional area gradually decreasing toward the gas pressurizing machine, and fig. 2 and 3 only illustrate the case where the first gas inlet pipe 20 and the second gas inlet pipe 30 are hollow cones. The second gas inlet pipe 30 includes a large cross-section end 32 and a small cross-section end 33, arrows in fig. 2 indicate the direction of gas, wherein the impeller 14 in the gas pressurizing machine 10 is driven by the rotating shaft 13 to rotate and suck the gas into the second gas chamber 31 from the gas pipeline, the gas enters the second gas chamber 31 from the large cross-section end 32 and enters the first gas chamber 21 after passing through the small cross-section end 33, the flow speed of the gas is increased under the drive of the impeller 14, so that the kinetic energy of the gas is increased, and the accelerated gas continuously flows through the impeller 14 and is conveyed to the steel making furnace from the gas outlet. Specifically, the direction of the air outlet is the tangential direction of rotation of the impeller, and the size of the outlet is arranged according to needs.
In addition, since the second gas inlet pipe 30 is formed in a hollow conical body having a sectional area gradually decreasing toward the gas pressurizing machine, the gas passes through the small sectional end 33, the flow velocity of the gas increases, and a low pressure is generated near the gas flowing at a high speed, thereby forming a venturi effect.
Wherein the sealing ring 40 is a labyrinth seal, and the gas or other gas leaked from the first gas chamber 21 is collected in the gas collecting chamber 41 on the sealing ring 40.
Further, three return pipes 51 are connected between the communication pipe 50 and the first gas inlet pipe 20 (as shown in fig. 3). The converging ends (not shown) of the three return pipes 51 are connected with one end of the communication pipeline 50 far away from the gas collecting chamber 41, and the other ends of the three return pipes 51 are respectively connected with the side wall of the first gas inlet pipe 20, so that the gas pressure at the position where each return pipe 51 is connected with the first gas inlet pipe 20 is relatively consistent. The arrows in fig. 3 illustrate the gas flowing back through the communication duct 50.
The communicating pipe 50 is provided with a flow meter 60 for flow rate adjustment, and a valve in the flow meter 60 can be adjusted to control the flow rate of the gas flowing in the communicating pipe 50 by the flow rate of the gas displayed by the flow meter 60.
Specifically, since the leaked gas may mix a minute amount of air through the gap between the housing 12 and the rotating shaft 13 and oxygen in the air may enter the first air chamber 21, an explosion may occur due to an excessively large gas-to-air ratio. Therefore, by providing the flow meter 60, if the flow rate thereof is too small, the flow rate of the gas flowing through the communicating pipe 50 can be controlled by turning down the valve of the flow meter 60, that is, the valve does not need to be opened too much.
The first gas inlet pipe 20 is connected with the gas pipeline through a flange 70, the first gas inlet pipe 20 is connected with the suction end 11 of the gas pressurizing machine 10 through the flange 70, and the connection mode of the flange 70 is convenient for realizing the connection or the separation of the first gas inlet pipe 20 and the gas pipeline and the connection or the separation of the first gas inlet pipe 20 and the suction end 11 of the gas pressurizing machine 10.
Further, the gas pressurizing machine 10 is provided with an anti-corrosive coating on the inner side wall of the casing 12 and on the impeller 14 to prevent the casing 12 and the impeller 14 from being corroded by the gas or other corrosive gases, thereby causing premature damage to the gas pressurizing machine 10. The anticorrosive coating can be formed by epoxy resin composite material paint, and can also be formed by other materials for preventing coal gas or other corrosive gases.
The working principle of the first embodiment is as follows: the gas enters the second gas chamber 31 from the gas pipeline, and the second gas inlet pipe 30 is a tapered pipe with the cross-sectional area gradually decreasing towards the direction far away from the gas pipeline, so that the flow speed of the gas is increased when the gas passes through the small cross-sectional end 33 of the second gas inlet pipe 30, low pressure is generated near the gas flowing at high speed, and a Venturi effect is formed. The gas pressure in the first gas chamber 21 at the position close to the second gas chamber 31 is low, and since the first gas chamber 21 is a tapered tube whose cross-sectional area gradually decreases toward the direction away from the gas pipe, the gas pressure in the first gas chamber 21 gradually increases toward the gas pressurizing machine 10, so that the gas pressure at the position of the rotating shaft 13 and the housing 12 is significantly higher than the gas pressure at the position of the first gas chamber 21 close to the second gas chamber 31. If a leakage point is once formed between the rotary shaft 13 and the housing 12, the leaked gas is concentrated into the gas collecting chamber 41, and the leaked gas flows from the gas collecting chamber 41 (high pressure point) to the first gas chamber 21 (low pressure point) due to the communication pipe 50 communicating the gas collecting chamber 41 with the first gas chamber 21. Therefore, the leaked gas is not discharged to the outdoor polluted air, and the gas does not need to be resisted from leaking by supplementing other gas (such as nitrogen), so that the increase of the cost is avoided.
Example two
Referring to fig. 4 and 5, fig. 4 is a schematic structural view of a self-priming device of a gas pressurizing machine according to a second embodiment of the present invention, and specifically, fig. 4 is a sectional view of a housing and a left side portion of the housing of the gas pressurizing machine; fig. 5 is a cross-sectional view a-a of the self-priming device of the gas pressurizing machine of fig. 4, and the arrows in fig. 5 illustrate the gas flowing back through the communication pipe 50. The difference between the second embodiment and the first embodiment is that a circle of partition 80 is provided between the inner wall of the first gas inlet pipe 20 and the outer wall of the second gas inlet pipe 30 in the present embodiment, at least one orifice 81 is provided on the partition 80, and fig. 5 illustrates the case where there are 8 orifices 81.
In the embodiment, the partition plate 80 is arranged to support the second gas inlet pipe 30, and the partition plate 80 divides the first gas chamber 21 into the negative pressure cavity 211 and the expansion cavity 212, so that the gas pressure of the negative pressure cavity 211 communicated with the communication pipeline 50 is always lower than that of the gas collecting chamber 41, and the leaked gas can be circulated to the first gas chamber 21.
The provision of 8 orifices 81 in the partition 80 can throttle the gas entering the first gas chamber 21 from the communication duct 50. For the working principle of the second embodiment, please refer to the first embodiment, which is not described herein again.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A self-priming device of a gas pressurizing machine is characterized by comprising:
a first gas inlet pipe (20), one end of which is connected with the suction end (11) of the gas pressurizer (10) and forms a first gas chamber (21) inside, and the other end of which is fixed on a gas pipeline;
the second gas inlet pipe (30) is arranged on the inner wall, close to the gas pipeline, of the first gas inlet pipe (20), the cross section area of the second gas inlet pipe is gradually reduced towards the direction of the gas pressurizer (10), and a second gas chamber (31) is formed inside the second gas inlet pipe (30);
a seal ring (40) which is arranged on the periphery of a shell (12) of the gas pressurizer (10) close to a rotating shaft (13), wherein a gas collecting chamber (41) is formed on the seal ring (40);
a communication duct (50) arranged between the sealing ring (40) and the first gas inlet pipe (20) and communicating the gas collection chamber (41) with the first gas chamber (21).
2. The self-priming device of a gas pressurizer according to claim 1, wherein a ring of partition plates (80) are arranged between the inner wall of the first gas inlet pipe (20) and the outer wall of the second gas inlet pipe (30), and at least one throttling hole (81) is arranged on each partition plate (80).
3. The self-priming device of a gas pressurizer according to claim 1, wherein the first gas inlet pipe (20) and the second gas inlet pipe (30) are each in the shape of a hollow cylinder or a hollow cone with a cross-sectional area gradually decreasing toward the gas pressurizer (10).
4. The self-priming device of a gas pressurizer according to claim 1, wherein three return pipes (51) are connected between the communication pipe (50) and the first gas inlet pipe (20).
5. The self-priming device of a gas pressurizer according to claim 4, wherein a flow meter (60) for flow regulation is arranged on the communication pipe (50).
6. The gas pressurizing machine self-priming device according to claim 5, wherein the sealing ring (40) is a labyrinth seal.
7. The gas pressurizing machine self-priming device according to claim 1, wherein the first gas inlet pipe (20) is connected to the gas pipe by a flange (70).
8. The self-priming device of a gas pressurizer according to claim 1, wherein the first gas inlet pipe (20) is connected with the suction end (11) of the gas pressurizer (10) through a flange (70).
9. The self-priming device of a gas pressurizer according to claim 1, wherein an impeller (14) is arranged on a rotating shaft (13) in a housing (12) of the gas pressurizer (10), and an anticorrosive coating is arranged on the inner side wall of the housing (12) and the impeller (14).
10. The self-priming device of a gas pressurizer of claim 9, wherein the housing (12) is provided with an air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020537616.3U CN211901077U (en) | 2020-04-13 | 2020-04-13 | Self-suction device of gas pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020537616.3U CN211901077U (en) | 2020-04-13 | 2020-04-13 | Self-suction device of gas pressurizer |
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| Publication Number | Publication Date |
|---|---|
| CN211901077U true CN211901077U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020537616.3U Expired - Fee Related CN211901077U (en) | 2020-04-13 | 2020-04-13 | Self-suction device of gas pressurizer |
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| Country | Link |
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| CN (1) | CN211901077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855604A (en) * | 2021-01-12 | 2021-05-28 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
-
2020
- 2020-04-13 CN CN202020537616.3U patent/CN211901077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855604A (en) * | 2021-01-12 | 2021-05-28 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
| CN112855604B (en) * | 2021-01-12 | 2022-10-21 | 桂林理工大学 | Sealing system for sulfur dioxide fan |
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Granted publication date: 20201110 |