CN212296477U - Mining high-power explosion-proof electrical equipment - Google Patents
Mining high-power explosion-proof electrical equipment Download PDFInfo
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- CN212296477U CN212296477U CN201922400134.3U CN201922400134U CN212296477U CN 212296477 U CN212296477 U CN 212296477U CN 201922400134 U CN201922400134 U CN 201922400134U CN 212296477 U CN212296477 U CN 212296477U
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Abstract
The utility model discloses a mining high-power explosion-proof electrical equipment, which comprises an explosion-proof shell and a gas container; the gas container comprises a gas outlet container and a gas inlet container; the other end of the air inlet container is connected with an air inlet pipe; the other end of the air outlet container is connected with an air outlet pipe; one side of the air inlet pipe is connected with an air source; a left pressure check valve and a right pressure check valve are arranged on two sides of the air inlet container; the left pressure check valve is positioned on the inner side of the explosion-proof shell; the right pressure check valve is positioned on the outer side of the explosion-proof shell; a left pressure check valve and a right pressure check valve are arranged on two sides of the air outlet container; the right pressure check valve is positioned on the inner side of the explosion-proof shell; the left pressure check valve is positioned on the outer side of the explosion-proof shell; an electrical device is arranged inside the explosion-proof shell. The active heat dissipation device has the advantages that the active heat dissipation method is adopted, the high-power device can be cooled rapidly in a smaller heat dissipation space, the structure is simple, and the whole device shell is not required to be changed and designed.
Description
Technical Field
The utility model relates to a mining high-power explosion-proof electrical equipment belongs to the mining equipment field.
Background
The mine plays an important role in national production and provides main energy for the country, but the underground special environment of the mine has higher requirement on the explosion-proof level of electrical equipment, the electrical equipment with high explosion-proof level is mostly made of iron materials, the shell wall is thicker, the heat dissipation of the electrical equipment with larger power is difficult, a large amount of heat can be accumulated in the shell after the mine is used for a period of time, the embedded computer, the power supply equipment and the power type equipment can generate certain heat, and the heat dissipation problem becomes a problem which needs to be solved urgently, for example, in an underground substation, the temperature is often very high and often reaches 30-40 ℃, for the electrical equipment, the temperature in the shell is higher, for the precise electrical equipment, the stability is greatly reduced, how to dissipate the heat in a large area is achieved, the heat is quickly brought out, the method provides an active heat dissipation method, the heat dissipation device can well dissipate heat, does not influence the explosion prevention of equipment, and is suitable for large-scale centralized heat dissipation.
With the development of technologies such as modern electrification and new energy, the use of technologies such as rectification, inversion and frequency conversion of electricity and the like enables electrical equipment to be more intelligent, so that the control of the equipment is more precise, and a better active heat dissipation technology is needed.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned prior art exists, the utility model provides a mining high-power explosion-proof electrical equipment can solve the mine down-hole shell and be cast iron, steel material's explosion-proof electrical equipment's heat dissipation problem, has better radiating effect
In order to realize the purpose, the utility model discloses a technical scheme is: a mining high-power explosion-proof electrical equipment comprises an explosion-proof shell and gas containers arranged on two sides of the explosion-proof shell; the gas container comprises a gas outlet container connected to the left side of the explosion-proof shell and a gas inlet container connected to the right side of the explosion-proof shell; the other end of the air inlet container is connected with an air inlet pipe; the other end of the air outlet container is connected with an air outlet pipe; one side of the air inlet pipe is connected with an air source;
a left pressure check valve and a right pressure check valve are arranged on two sides of the air inlet container; the left pressure check valve is positioned on the inner side of the explosion-proof shell; the right pressure check valve is positioned on the outer side of the explosion-proof shell; a left pressure check valve and a right pressure check valve are arranged on two sides of the air outlet container; the right pressure check valve is positioned on the inner side of the explosion-proof shell; the left pressure stop valve is positioned on the outer side of the explosion-proof shell; and an electrical device is arranged in the explosion-proof shell.
Furthermore, the gas source connected to one side of the gas inlet pipe is nitrogen, and the gas enters the underground from the explosion-proof gas pump through the gas inlet pipe.
Further, arc extinguishing filter screens are arranged inside the air inlet container and the air outlet container.
Furthermore, the left pressure check valve and the right pressure check valve, and the left pressure check valve and the right pressure check valve are respectively connected with a pressure sensor.
Furthermore, the air inlet container and the air outlet container are welded on two sides of the explosion-proof shell.
The utility model has the advantages that: different from the prior explosion-proof equipment which only can passively dissipate heat, the active heat dissipation method is adopted, the temperature of the high-power equipment can be quickly reduced in a smaller heat dissipation space, the structure is simple, and the whole change and design of the equipment shell are not needed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. explosion-proof casing, 2, left pressure check valve, 3, air inlet container, 4, right pressure check valve, 5, intake pipe, 6, electrical apparatus, 7, right pressure check valve, 8, the container of giving vent to anger, 8-1, the arc extinguishing filter screen, 9, left pressure check valve, 10, the outlet duct.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, the mining high-power explosion-proof electrical equipment comprises an explosion-proof housing 1 and gas containers arranged on two sides of the explosion-proof housing 1; the gas container comprises a gas outlet container 8 connected to the left side of the explosion-proof shell 1 and a gas inlet container 3 connected to the right side of the explosion-proof shell 1; the other end of the air inlet container 3 is connected with an air inlet pipe 5; the other end of the air outlet container 8 is connected with an air outlet pipe 10; one side of the air inlet pipe 5 is connected with an air source;
a left pressure check valve 2 and a right pressure check valve 4 are arranged on two sides of the air inlet container 3; the left pressure check valve 2 is positioned on the inner side of the explosion-proof shell 1; the right pressure check valve 4 is positioned on the outer side of the explosion-proof shell 1; a left pressure check valve 9 and a right pressure check valve 7 are arranged on two sides of the air outlet container 8; the right pressure check valve 7 is positioned on the inner side of the explosion-proof shell 1; the left pressure check valve 9 is positioned on the outer side of the explosion-proof shell 1; an electrical device 6 is arranged inside the explosion-proof shell 1.
The gas source that 5 one sides of intake pipe connect be nitrogen gas, gaseous entering into in the pit through intake pipe 5 by explosion-proof air pump, the air supply of air inlet 5 is ground gas, does not contain combustible gas composition, gaseous input is in the pit through the pipeline, can carry out the precooling to gaseous, because pump house water source temperature in the pit generally keeps about 10 degrees centigrade, gaseous after the precooling, the temperature reaches about 5 ℃ -10 ℃. After being compressed, the gas enters the gas inlet 5.
The inside of the air inlet container 3 and the air outlet container 8 is provided with an arc extinguishing filter screen 8-1, sparks leaking into the valve can be eliminated, and once an emergency occurs, the left pressure check valve 2, the right pressure check valve 4, the left pressure check valve 9 and the right pressure check valve 7 are instantly closed through the pressure sensors.
The left pressure check valve 2 and the right pressure check valve 4, and the left pressure check valve 9 and the right pressure check valve 7 are respectively connected with a pressure sensor, and the left pressure check valve 2 and the right pressure check valve 4 can prevent gas in the explosion-proof container (1) from entering the air inlet container (3); the left pressure check valve 9 and the right pressure check valve 7 can be cut off when the explosion-proof container (1) generates explosion pressure, so that explosion high-pressure gas is prevented from overflowing.
The gas inlet container 3 and the gas outlet container 8 are respectively welded on two sides of the explosion-proof shell 1.
The method comprises the following steps that an air inlet container 3 and an air outlet container 8 are welded on two sides of an explosion-proof shell 1, firstly, air source gas is ground gas and does not contain combustible components, the gas is input into a well through a pipeline, the gas is pre-cooled firstly, and the gas enters an air inlet pipe 5 after being compressed; the input gas is controlled to be inflated and deflated into the explosion-proof shell 1 by controlling the opening and closing of the left pressure check valve 2 and the right pressure check valve 4, and the gas inlet container 3 is welded on the right shell of the explosion-proof shell 1; after the gas enters the gas inlet container 3, the opening and closing of the left pressure check valve 2 and the right pressure check valve 4 are controlled, and the opening and closing of a left pressure check valve 9 and a right pressure check valve 7 connected to the gas outlet container 8 are controlled; thereby generating a gas flow cycle to bring heat out of the explosion-proof housing 1 in time. The gas source gas is nitrogen.
After the gas enters the gas inlet container 3, a left pressure check valve 9 on the gas outlet container 8 is opened while the left pressure check valve 2 is closed by opening a right pressure check valve 4 on the gas inlet container 3, and a right pressure check valve 7 is closed, so that the gas source gas is inflated into the explosion-proof shell 1; after gas enters into air inlet vessel 3, through opening left pressure check valve 2 on the air inlet vessel 3, open right pressure check valve 7 on the container 8 of giving vent to anger when closing right pressure check valve 4, close left pressure check valve 9, the gaseous disappointing in to explosion-proof casing 1 of air supply this moment, keep explosion-proof casing (1) and external isolated all the time like this, gas can get into explosion-proof vessel (1) through the change of pressure, thereby produce gaseous circulation, in time take the heat out of the casing.
The gas output from the outlet pipe 10 may be hot or contain sparks (in case of equipment failure) and cannot be discharged directly downhole through a check valve into groundwater to prevent the outflow of overheated gas.
The utility model discloses added two gas containers on the basis of former explosion-proof casing, utilized the pressure differential to realize gaseous circulation inside explosion-proof casing, both satisfied equipment explosion-proof performance, heat dissipation that again can be fine, the radiating mode explained in the method of the invention divide into 5 parts, the first part is the air supply part, the second part is the container part of admitting air, the third part is explosion-proof electric container part, the fourth part is the container part of giving vent to anger, the fifth part is the processing section of giving vent to anger.
The gas source part requires gas production from the ground, nitrogen can be adopted under the conditional condition, the gas does not contain flammable gas such as gas, and the gas produced is introduced into the underground through a pipeline, passes through underground water such as a pump room pool, enters a gas pump to be compressed after being cooled, generates gas with certain pressure and is connected to the opening 3 of the gas inlet container of the heat dissipation device.
Air inlet container 3, this part is by the gaseous left pressure check valve 2 of control of first part input and right pressure check valve 4 enter into air inlet container 3 with pressure gas in, air inlet container 3 can weld on explosion-proof casing 1, also can place alone, pressure gas gets into behind the container, left pressure check valve 2 closes, the inside gas that just has certain pressure of container like this, pressure gas opens through the right pressure check valve 4 of connecting explosion-proof electric container and loses heart, close after losing heart, left pressure check valve 2 opens again and admits air, and two valves all have the check function, in the twinkling of an eye if the emergence explosion, guarantee with external isolated, can not produce the impact to the external world.
The part of the explosion-proof shell 1 is used for placing electrical equipment, and special design and modification are not needed on the original explosion-proof equipment.
The part of the air outlet container 8 is also provided with two controllable valve bodies, namely a left pressure stop valve 9 and a right pressure stop valve 7, the two valve bodies are slightly different from the valve body of the air inlet container 3, the two valve bodies are air outlet valves, when air is discharged, if instantaneous explosion pressure can be automatically cut off, the two air outlet valves are also divided into an inlet and an outlet, the connecting end with the explosion-proof shell 1 is the inlet, the air outlet part is connected with the air outlet part to be the air outlet, the opening and closing time of the two controllable valves is determined by the opening and closing of the two valves of the second part air inlet container 3 of the structure of the invention, when the inlet valve of the air inlet container part right pressure check valve 4 is opened, and when the outlet valve left pressure check valve 9 of the air outlet container 8 part is opened, and the outlet valve left pressure check valve 2 of the air inlet container 3 part is opened, the inlet valve right pressure check valve 7 of the air outlet container 8 part is opened.
And an air outlet treatment part which connects the air exhausted from the air outlet container 8 to a water pool in the well through a pipeline and exhausts the air to the environment through the water pool.
In order to further optimize the above solution, the gas source needs to ensure that gas is produced from the surface or gas without explosive components, the gas source must be higher than the downhole gas pressure, and a certain gas pressure can be charged into the gas inlet container 3 to circulate the gas in the container through pressure.
In order to further optimize the scheme, the gas discharged by the gas outlet treatment is treated, so that high temperature or spark discharge is furthest prevented, the possibility of explosion loss of the system is avoided from multiple aspects, the gas discharge pipeline can be discharged by inserting liquid, and the liquid can be oil or underground water.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (5)
1. A mining high-power explosion-proof electrical equipment comprises an explosion-proof shell (1) and is characterized by also comprising gas containers arranged at two sides of the explosion-proof shell (1); the gas container comprises a gas outlet container (8) connected to the left side of the explosion-proof shell (1) and a gas inlet container (3) connected to the right side of the explosion-proof shell (1); the other end of the air inlet container (3) is connected with an air inlet pipe (5); the other end of the air outlet container (8) is connected with an air outlet pipe (10); one side of the air inlet pipe (5) is connected with an air source;
a left pressure check valve (2) and a right pressure check valve (4) are arranged on two sides of the air inlet container (3); the left pressure check valve (2) is positioned on the inner side of the explosion-proof shell (1); the right pressure check valve (4) is positioned on the outer side of the explosion-proof shell (1); a left pressure check valve (9) and a right pressure check valve (7) are arranged on two sides of the air outlet container (8); the right pressure stop valve (7) is positioned on the inner side of the explosion-proof shell (1); the left pressure stop valve (9) is positioned on the outer side of the explosion-proof shell (1); an electrical device (6) is arranged inside the explosion-proof shell (1).
2. The mining high-power explosion-proof electrical equipment according to claim 1, characterized in that a gas source connected to one side of the gas inlet pipe (5) is nitrogen, and the gas is introduced into the underground from an explosion-proof gas pump through the gas inlet pipe (5).
3. The mining high-power explosion-proof electrical equipment according to claim 1, characterized in that arc extinguishing filter screens (8-1) are arranged inside the air inlet container (3) and the air outlet container (8).
4. The mining high-power explosion-proof electrical equipment according to claim 1, characterized in that the left pressure check valve (2), the right pressure check valve (4), the left pressure check valve (9) and the right pressure check valve (7) are respectively connected with a pressure sensor.
5. The mining high-power explosion-proof electrical equipment according to claim 1 or 3, characterized in that the air inlet container (3) and the air outlet container (8) are welded on two sides of the explosion-proof housing (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921907988 | 2019-11-07 | ||
| CN2019219079884 | 2019-11-07 |
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| Publication Number | Publication Date |
|---|---|
| CN212296477U true CN212296477U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922400134.3U Active CN212296477U (en) | 2019-11-07 | 2019-12-27 | Mining high-power explosion-proof electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295079A (en) * | 2019-11-07 | 2020-06-16 | 徐州市工大三森科技有限公司 | Heat dissipation method for mining high-power explosion-proof electrical equipment |
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- 2019-12-27 CN CN201922400134.3U patent/CN212296477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295079A (en) * | 2019-11-07 | 2020-06-16 | 徐州市工大三森科技有限公司 | Heat dissipation method for mining high-power explosion-proof electrical equipment |
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