CN213419436U - Positive pressure explosion-proof device for magnetic suspension air blower - Google Patents
Positive pressure explosion-proof device for magnetic suspension air blower Download PDFInfo
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- CN213419436U CN213419436U CN202022231055.7U CN202022231055U CN213419436U CN 213419436 U CN213419436 U CN 213419436U CN 202022231055 U CN202022231055 U CN 202022231055U CN 213419436 U CN213419436 U CN 213419436U
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Abstract
The utility model discloses a malleation explosion-proof equipment for magnetic suspension air-blower. The positive pressure explosion-proof device for the magnetic suspension blower comprises: the positive pressure explosion-proof cavity is used for placing a magnetic suspension blower; the air supply unit is connected with the positive pressure explosion-proof cavity and is used for providing a positive pressure air source for the positive pressure explosion-proof cavity; the first gas detector is arranged on the positive pressure explosion-proof cavity and used for detecting whether the gas in the positive pressure explosion-proof cavity contains explosive gas or not; the first pressure sensor is arranged on the positive pressure explosion-proof cavity and used for detecting the air pressure in the positive pressure explosion-proof cavity; and the pressure release valve is arranged on the positive pressure explosion-proof cavity and used for releasing pressure when the pressure in the positive pressure explosion-proof cavity is greater than a pressure threshold value. The utility model discloses a can prevent that magnetic suspension air-blower from exploding malleation explosion-proof equipment.
Description
Technical Field
The utility model relates to a magnetic suspension technical field especially relates to a malleation explosion-proof equipment for magnetic suspension air-blower.
Background
With the rapid popularization of the magnetic suspension technology, the application field of the magnetic suspension blower is continuously expanded, for example, in dangerous places such as petroleum and chemical engineering, and the operation in dangerous places requires that the magnetic suspension blower meets the requirement of explosion prevention. Due to the complex structure of the magnetic suspension motor, the explosion-proof requirement is difficult to meet by adopting a common explosion-proof structure and an increased safety structure, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can prevent that magnetic suspension air-blower from exploding the malleation explosion-proof equipment that is used for magnetic suspension air-blower.
To achieve the purpose, the utility model adopts the following technical proposal:
a positive pressure explosion protection device for a magnetic levitation blower, comprising:
the positive pressure explosion-proof cavity is used for placing a magnetic suspension blower;
the air supply unit is connected with the positive pressure explosion-proof cavity and is used for providing a positive pressure air source for the positive pressure explosion-proof cavity;
the first gas detector is arranged on the positive pressure explosion-proof cavity and used for detecting whether the gas in the positive pressure explosion-proof cavity contains explosive gas or not;
the first pressure sensor is arranged on the positive pressure explosion-proof cavity and used for detecting the air pressure in the positive pressure explosion-proof cavity;
and the pressure release valve is arranged on the positive pressure explosion-proof cavity and used for releasing pressure when the pressure in the positive pressure explosion-proof cavity is greater than a pressure threshold value.
Optionally, the gas supply unit includes:
the tail end of the gas supply pipeline is connected with the positive pressure explosion-proof cavity;
the fan is arranged in a safety area without explosive gas and is connected with the gas supply pipeline;
the second pressure sensor is arranged on the gas supply pipeline;
the first valve is arranged on the gas supply pipeline.
Optionally, a second gas detector is mounted near the air inlet of the blower.
Optionally, the number of the fans is two, and the two fans are respectively connected to the air supply pipeline through a first pipeline and a second pipeline.
Optionally, the first pipeline and the second pipeline are respectively provided with a second valve and a third valve.
Optionally, the second valve and the third valve are electrically operated valves.
Optionally, the first valve is a manual butterfly valve.
Optionally, the first valve is disposed between the second pressure sensor and the positive pressure explosion-proof cavity.
Optionally, the pressure relief valve is arranged at the top of the positive pressure explosion-proof cavity.
Optionally, a controller is arranged on a side wall of the positive pressure explosion-proof cavity, and the controller is connected to the first gas detector, the second gas detector, the first pressure sensor, the second pressure sensor, the pressure release valve, the second valve, and the third valve.
The utility model discloses an useful part lies in: the positive pressure explosion-proof device comprises a positive pressure explosion-proof cavity, so that external explosive gas can be prevented from entering the positive pressure explosion-proof cavity, and a magnetic suspension blower in the positive pressure explosion-proof cavity is prevented from exploding; still set up the first gas detector who whether contains explosive gas in the explosion-proof cavity of detection malleation, further prevent that the magnetic suspension air-blower from exploding, avoided the potential safety hazard.
Drawings
Fig. 1 is a schematic structural diagram of a positive pressure explosion-proof device for a magnetic suspension blower according to an embodiment of the present invention.
In the figure:
1. a positive pressure explosion-proof cavity; 2. an air supply unit; 3. a first gas detector; 4. a first pressure sensor; 5. a pressure relief valve; 6. a gas supply duct; 7. a fan; 8. a second pressure sensor; 9. a first valve; 10. a second gas detector; 11. a first conduit; 12. a second conduit; 13. a second valve; 14. a third valve; 15. and a controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model provides a malleation explosion-proof equipment for magnetic suspension air-blower please refer to fig. 1, and malleation explosion-proof equipment includes the explosion-proof cavity of malleation 1, air feed unit 2, first gas detector 3, first pressure sensor 4 and relief valve 5. The positive pressure explosion-proof cavity 1 is used for placing a magnetic suspension blower. The air supply unit 2 is connected with the positive pressure explosion-proof cavity 1 and is used for providing a positive pressure air source for the positive pressure explosion-proof cavity 1 so as to enable the positive pressure explosion-proof cavity 1 to reach a certain positive pressure and prevent external air from entering the positive pressure explosion-proof cavity 1. The first gas detector 3 is installed on the positive pressure explosion-proof cavity 1 and used for detecting whether the gas in the positive pressure explosion-proof cavity 1 contains explosive gas or not, if the gas has explosiveness, the gas enters the positive pressure explosion-proof cavity 1, the gas can be detected in time, and the magnetic suspension blower in the positive pressure explosion-proof cavity 1 is prevented from exploding. The first pressure sensor 4 is installed on the positive pressure explosion-proof cavity 1 and used for detecting the air pressure in the positive pressure explosion-proof cavity 1, and the magnetic suspension air blower in the positive pressure explosion-proof cavity 1 is started when the air pressure meets the conditions. The pressure release valve 5 is arranged on the positive pressure explosion-proof cavity body 1 and used for releasing pressure when the pressure in the positive pressure explosion-proof cavity body 1 is too larger than a pressure threshold value, so that the positive pressure explosion-proof cavity body 1 is kept under a certain air pressure.
Specifically, the first gas detector 3 and the first pressure sensor 4 may be disposed on a side wall of the positive pressure explosion-proof cavity 1, and the pressure release valve 5 is disposed at the top of the positive pressure explosion-proof cavity 1.
The utility model discloses a malleation explosion-proof equipment enables the magnetic suspension air-blower to be placed in malleation explosion-proof cavity 1, it is explosion-proof to realize the malleation, air feed unit 2 provides positive pressure air supply for malleation explosion-proof cavity 1, keep certain atmospheric pressure in making malleation explosion-proof cavity 1, avoid external gas to get into in the malleation explosion-proof cavity 1, when the magnetic suspension air-blower is in the oil, when dangerous places such as chemical industry use, place the magnetic suspension air-blower in malleation explosion-proof cavity 1, can keep apart magnetic suspension air-blower and external explosive gas, avoid exploding. First pressure sensor 4 can detect the atmospheric pressure in the explosion-proof cavity of malleation 1, just opens the magnetic suspension air-blower after atmospheric pressure reaches the atmospheric pressure of setting for, guarantees that the magnetic suspension air-blower is worked under sufficient atmospheric pressure, just also guarantees that external explosive gas can't enter into in the explosion-proof cavity of malleation 1 when the magnetic suspension air-blower during operation.
Referring to fig. 1, the air supply unit 2 includes an air supply duct 6, a blower 7, a second pressure sensor 8, and a first valve 9. The tail end of the gas supply pipeline 6 is connected with the positive pressure explosion-proof cavity 1, and the fan 7 is arranged in a safety area without explosive gas and is connected with the gas supply pipeline 6, wherein the content of the explosive gas is 0. The blower 7 is arranged in a safety area without explosive gas, so that the air source provided by the blower 7 for the positive pressure explosion-proof cavity 1 is clean and clean, and explosion is further prevented. The second pressure sensor 8 is arranged on the gas supply pipeline 6 and used for detecting the gas supply pressure of the gas supply pipeline 6 and ensuring that the gas supply pressure is within a preset range. A first valve 9 is provided on the air supply duct 6 for controlling the opening and closing of the entire air supply unit 2.
Preferably, the first valve 9 can be a manual butterfly valve, and the manual opening and closing can be realized by adopting the manual butterfly valve, so that the controllability of the system is improved. Of course, the first valve 9 may be other types of valves, and is not limited herein.
Further, first valve 9 can set up between second pressure sensor 8 and the explosion-proof cavity of malleation 1, also set up in the explosion-proof cavity of malleation 1 front end promptly to guarantee the timeliness of the gas transmission control of gas supply line 6, can stop immediately to the explosion-proof cavity of malleation 1 internal gas supply when closing first valve 9, guarantee the accuracy of the explosion-proof cavity of malleation 1 internal gas pressure control. If the first valve 9 is disposed at a position closer to the front of the gas supply duct 6, when the first valve 9 is closed, the gas supply duct 6 may have excess gas supplied to the positive pressure explosion-proof chamber 1.
As shown in fig. 1, a second gas detector 10 is installed near the air inlet of the blower 7, the second gas detector 10 is used for detecting whether the gas at the air inlet of the blower 7 contains explosive gas, and if the gas at the air inlet of the blower 7 contains explosive gas, the gas supply is stopped, so that explosion is prevented, and the safety is improved.
Further, there are two fans 7, and the two fans 7 are connected to the air supply duct 6 through a first duct 11 and a second duct 12, respectively. The two fans 7 are mutually standby and can work at the same time or at the same time. For example, when there is insufficient air supply to only one of the fans 7, the other of the fans can be activated to supply air simultaneously. If one of the fans 7 fails, the other fan can supply air normally.
As shown in fig. 1, the first pipe 11 and the second pipe 12 are respectively provided with a second valve 13 and a third valve 14, so that the opening and closing of the first pipe 11 and the second pipe 12 can be independently controlled.
Furthermore, the second valve 13 and the third valve 14 are electric valves, and the electric valves are controlled by an electric actuator, so that the automatic control can be realized, the control speed is high, the accuracy is high, and the accurate control of flow regulation can be realized.
As shown in fig. 1, a controller 15 is further disposed on the side wall of the positive pressure explosion-proof cavity 1, and the controller 15 is connected to the first gas detector 3, the second gas detector 10, the first pressure sensor 4, the second pressure sensor 8, the pressure release valve 5, the second valve 13, and the third valve 14, so as to control the whole positive pressure explosion-proof device.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A positive pressure explosion-proof device for a magnetic levitation blower, comprising:
the positive pressure explosion-proof cavity (1) is used for placing a magnetic suspension blower;
the gas supply unit (2) is connected with the positive pressure explosion-proof cavity (1) and is used for providing a positive pressure gas source for the positive pressure explosion-proof cavity (1);
the first gas detector (3) is arranged on the positive pressure explosion-proof cavity body (1) and is used for detecting whether the gas in the positive pressure explosion-proof cavity body (1) contains explosive gas or not;
the first pressure sensor (4) is arranged on the positive pressure explosion-proof cavity (1) and is used for detecting the air pressure in the positive pressure explosion-proof cavity (1);
and the pressure release valve (5) is arranged on the positive pressure explosion-proof cavity (1) and is used for releasing pressure when the pressure in the positive pressure explosion-proof cavity (1) is greater than a pressure threshold value.
2. The positive pressure explosion protection device for magnetic levitation blowers according to claim 1, wherein the gas supply unit (2) comprises:
the tail end of the gas supply pipeline (6) is connected with the positive pressure explosion-proof cavity (1);
the fan (7) is arranged in a safety area without explosive gas and is connected with the gas supply pipeline (6);
the second pressure sensor (8) is arranged on the gas supply pipeline (6);
the first valve (9) is arranged on the gas supply pipeline (6).
3. The positive pressure explosion protection device for magnetic levitation blowers according to claim 2, wherein a second gas detector (10) is installed near an air inlet of the blower (7).
4. The positive pressure explosion protection device for magnetic levitation blowers according to claim 3, wherein the number of the fans (7) is two, and the two fans (7) are connected to the air supply duct (6) through a first duct (11) and a second duct (12), respectively.
5. The positive pressure explosion protection device for a magnetic levitation blower according to claim 4, wherein a second valve (13) and a third valve (14) are respectively provided on the first pipe (11) and the second pipe (12).
6. The positive pressure explosion protection device for a magnetic levitation blower according to claim 5, wherein the second valve (13) and the third valve (14) are electrically operated valves.
7. The positive pressure explosion protection device for magnetic levitation blowers according to claim 2, wherein the first valve (9) is a manual butterfly valve.
8. The positive pressure explosion protection device for a magnetic levitation blower according to claim 2, wherein the first valve (9) is provided between the second pressure sensor (8) and the positive pressure explosion protection chamber (1).
9. The positive pressure explosion-proof device for the magnetic suspension blower according to claim 1 is characterized in that the pressure relief valve (5) is arranged at the top of the positive pressure explosion-proof cavity (1).
10. The positive pressure explosion protection device for the magnetic suspension blower according to claim 6, wherein a controller (15) is arranged on the side wall of the positive pressure explosion protection cavity (1), and the controller (15) is connected with the first gas detector (3), the second gas detector (10), the first pressure sensor (4), the second pressure sensor (8), the pressure relief valve (5), the second valve (13) and the third valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022231055.7U CN213419436U (en) | 2020-10-09 | 2020-10-09 | Positive pressure explosion-proof device for magnetic suspension air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022231055.7U CN213419436U (en) | 2020-10-09 | 2020-10-09 | Positive pressure explosion-proof device for magnetic suspension air blower |
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| CN213419436U true CN213419436U (en) | 2021-06-11 |
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| CN202022231055.7U Active CN213419436U (en) | 2020-10-09 | 2020-10-09 | Positive pressure explosion-proof device for magnetic suspension air blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292376A (en) * | 2023-05-19 | 2023-06-23 | 天津飞旋科技股份有限公司 | Non-electric and electric composite explosion-proof protection method and non-electric and electric composite blower |
-
2020
- 2020-10-09 CN CN202022231055.7U patent/CN213419436U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292376A (en) * | 2023-05-19 | 2023-06-23 | 天津飞旋科技股份有限公司 | Non-electric and electric composite explosion-proof protection method and non-electric and electric composite blower |
| CN116292376B (en) * | 2023-05-19 | 2023-08-08 | 天津飞旋科技股份有限公司 | Non-electric and electric composite explosion-proof protection method and non-electric and electric composite blower |
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