CN220152827U - Explosion-proof electric heating device - Google Patents
Explosion-proof electric heating device Download PDFInfo
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- CN220152827U CN220152827U CN202320373622.3U CN202320373622U CN220152827U CN 220152827 U CN220152827 U CN 220152827U CN 202320373622 U CN202320373622 U CN 202320373622U CN 220152827 U CN220152827 U CN 220152827U
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- explosion
- electric heating
- proof
- temperature sensor
- temperature controller
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- 238000005485 electric heating Methods 0.000 title claims abstract description 94
- 238000010438 heat treatment Methods 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 13
- 239000003208 petroleum Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to an explosion-proof electric heating device, which belongs to the technical field of petroleum exploitation, and comprises: the outer shell is provided with an electric heating pipe, a temperature sensor and an explosion-proof wiring cavity which are arranged in the outer shell; an outer-convex explosion-proof wire inlet is formed on the explosion-proof wiring cavity, one end of the explosion-proof wire inlet, which is far away from the cavity, passes through an opening on the outer shell body to be exposed outside, and the explosion-proof wire inlet and the opening form close fit; the explosion-proof wiring cavity is internally provided with a temperature controller, the electric heating pipe, the temperature sensor and an external power line entering the device from the explosion-proof wire inlet are electrically connected, and the connecting points are all positioned in the explosion-proof wiring cavity. The technical scheme of the utility model can effectively meet the application requirements of the actual drilling work operation scene.
Description
Technical Field
The utility model belongs to the technical field of petroleum exploitation, and particularly relates to an explosion-proof electric heating device.
Background
In the petroleum exploitation industry, a drilling operation point is often located in a rough field with very bad natural conditions, such as Gobi desert where the natural conditions are rare, and the exploitation operation is very influenced by cold low temperature of the environment. In order to ensure the basic operation condition of the drilling unit, the driller in mobile standing operation can be in a better working state, and the electric heating device should be equipped on the drilling unit in comprehensive consideration.
In the related art, a general electric heating device is generally lack of an explosion-proof design and is of a vertical structure, so that the explosion-proof requirement of petroleum exploitation operation is not met, and the electric heating device cannot be suitable for an actual operation scene on a drilling working platform.
Disclosure of Invention
In order to overcome the problems existing in the related art at least to a certain extent, the utility model provides an explosion-proof electric heating device, so as to solve the technical problem that an electric heating device suitable for a drilling work operation scene is lacking in the prior art. In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an explosion-proof electric heating device, which comprises: the outer shell is provided with an electric heating pipe, a temperature sensor and an explosion-proof wiring cavity which are arranged in the outer shell;
an outer-protruding explosion-proof wire inlet is formed on the explosion-proof wiring cavity, one end of the explosion-proof wire inlet, which is far away from the cavity, penetrates through an opening in the outer shell to be exposed outside, and the explosion-proof wire inlet and the opening form close fit;
the explosion-proof wiring cavity is internally provided with a temperature controller, the electric heating pipe, the temperature sensor and an external power line which enters the device from the explosion-proof wire inlet are electrically connected, and the connecting points are all positioned in the explosion-proof wiring cavity.
Optionally, the temperature controller comprises a first temperature controller, the electric heating pipe comprises a first electric heating pipe, and the temperature sensor comprises a first temperature sensor; the electrical connection includes:
the first temperature sensor is electrically connected with the first temperature controller, and the first electric heating pipe is electrically connected with an external power line through the first temperature controller.
Optionally, the temperature controller further comprises a second temperature controller, the electric heating pipe further comprises a second electric heating pipe, and the temperature sensor further comprises a second temperature sensor; the electrical connection further comprises:
the second temperature sensor is electrically connected with the second temperature controller, and the second electric heating pipe is electrically connected with an external power line through the second temperature controller.
Optionally, the temperature control range of the first temperature controller is partially overlapped with the temperature control range of the second temperature controller.
Optionally, the electric heating tube further comprises a third electric heating tube; the electrical connection further comprises:
the third electric heating tube is electrically connected with an external power line.
Optionally, the heating power of the third electric heating tube is greater than or equal to the heating power of the first electric heating tube.
Optionally, the outer shell is integrally formed as a prolate cube.
Optionally, the outer housing is made of cast aluminum.
The utility model adopts the technical proposal and has at least the following beneficial effects:
in the technical scheme of the utility model, the explosion-proof electric heating device comprises: the outer shell is provided with an electric heating pipe, a temperature sensor and an explosion-proof wiring cavity which are arranged in the outer shell; an outer-convex explosion-proof wire inlet is formed on the explosion-proof wiring cavity, one end of the explosion-proof wire inlet, which is far away from the cavity, passes through an opening on the outer shell body to be exposed outside, and the explosion-proof wire inlet and the opening form close fit; the explosion-proof wiring cavity is internally provided with a temperature controller, the electric heating pipe, the temperature sensor and an external power line entering the device from the explosion-proof wire inlet are electrically connected, and the connecting points are all positioned in the explosion-proof wiring cavity. According to the explosion-proof electric heating device, the temperature controller and the wiring points of the device are arranged in the explosion-proof wiring cavity, so that the explosion-proof design requirement is met, and the electric heating device meets the application requirement of a drilling work operation scene in practice.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
The accompanying drawings are included to provide a further understanding of the technical aspects or prior art of the present utility model, and are incorporated in and constitute a part of this specification. The drawings, which are used to illustrate the technical scheme of the present utility model, are not limited to the technical scheme of the present utility model.
Fig. 1 is a schematic structural explanatory view of an explosion-proof electric heating apparatus provided in an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the circuit principle of the temperature control implementation in the embodiment shown in FIG. 1;
fig. 3 is a schematic structural explanatory diagram of an explosion-proof electric heating apparatus according to another embodiment of the present utility model;
fig. 4 is a schematic illustration of the circuit principle of the temperature control implementation in the embodiment shown in fig. 3.
In the drawing the view of the figure,
10-an outer shell; 20-an electric heating tube; 21-a first electric heating tube; 22-a second electric heating tube; 23-a third heating tube; 30-an explosion-proof wiring cavity; 31-an explosion-proof wire inlet; 40, a temperature controller; 41-a first temperature controller; 42-a second temperature controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
As described in the background art, in the petroleum exploitation industry, drilling operation points are often located in a rough field with very bad natural conditions, such as gobi desert where the nature is rare, and the exploitation operation is very affected by the cold low temperature of the environment. In order to ensure the basic operation condition of the drilling unit, the driller in mobile standing operation can be in a better working state, and the electric heating device should be equipped on the drilling unit in comprehensive consideration.
In the related art, a general electric heating device is generally lack of an explosion-proof design and is of a vertical structure, so that the explosion-proof requirement of petroleum exploitation operation is not met, and the electric heating device cannot be suitable for an actual operation scene on a drilling working platform.
In view of this, the present utility model proposes an explosion-proof electric heating device, and fig. 1 is a schematic structural illustration of the explosion-proof electric heating device in an embodiment.
As shown in fig. 1, in this embodiment, the explosion-proof electric heating apparatus includes: an outer case 10, an electric heating pipe 20, a temperature sensor (not shown), and an explosion-proof wiring cavity 30 disposed in the outer case;
as shown in fig. 1, an explosion-proof wire inlet 31 protruding outwards is formed on the explosion-proof wire connection cavity 30, one end of the explosion-proof wire inlet, which is far away from the cavity, passes through an opening on the outer shell and is exposed outside, and the explosion-proof wire inlet 31 is tightly matched with the opening on the outer shell;
the explosion-proof wiring cavity 30 is provided with a temperature controller 40, the electric heating pipe 20, a temperature sensor and an external power line (corresponding to the legend shown in L, N in fig. 1) entering the device from the explosion-proof wire inlet 31 are electrically connected, and the connecting wiring points are all located in the explosion-proof wiring cavity.
Specifically, in this embodiment, the temperature controller 40 includes a first temperature controller 41, the electric heating pipe 20 includes a first electric heating pipe 21, and the temperature sensor includes a first temperature sensor (for example, a thermistor type sensor is adopted, and the actual position of the sensor probe is set based on the requirement of sensing the temperature of the outer casing); the electrical connection specifically includes:
the first temperature sensor is electrically connected with the first temperature controller 41 (for example, the sensor is connected to the temperature sensing access end of the temperature controller), the first electric heating tube 21 is electrically connected with an external power line through the first temperature controller 41 (for example, one end of the electric heating tube is directly connected with the zero line end of the external power line, and the other end of the electric heating tube is connected with the fire line end of the external power line through the action contact of the temperature controller).
In the technical scene of the utility model, the action contact point of the temperature controller and the wiring point of the related cable are easy to strike fire, which is the key point of explosion-proof design; according to the technical scheme, the explosion-proof wiring cavity plays a role of an explosion-proof junction box in the device, and the temperature controller and related wiring points are arranged in the explosion-proof wiring cavity, so that the explosion-proof design of the device is effectively realized, and the application requirements in the actual drilling work scene can be met.
Further, considering the standing operation condition of the driller in the actual scenario, in this embodiment, the outer housing 10 of the device is integrally formed as a prolate square body, so that the driller can directly stand on the heating device to operate, thereby ensuring that the driller can be in a more convenient working state.
Further, considering the severe working conditions in the practical application scenario, in this embodiment, the outer casing 10 is made of cast aluminum (the electric heating tube, the temperature sensor and the air contained in the explosion-proof wiring cavity are correspondingly reserved in the casting mold), so that the whole structure of the device is more firm and durable, and the device can be stably placed on the drilling platform without additional weights, which is more beneficial to the practical use of the device and can save the manufacturing cost as a whole.
On the basis of the above embodiment, in order to reduce the number of times of operation of the temperature controller, the electric heating tube has less cold and hot variation to extend the service life of the device components, as shown in fig. 1 and 2, in another embodiment, the temperature controller 40 further includes a second temperature controller 42, the electric heating tube 20 further includes a second electric heating tube 22, and the temperature sensor further includes a second temperature sensor (not shown in the drawings); in this embodiment, the electrical connection further comprises:
the second temperature sensor is electrically connected with the second temperature controller 42 (not shown in the figure), the second electric heating tube 22 is electrically connected with an external power line through the second temperature controller 42, the related specific connection mode is similar to the other group of connection modes described in the previous description, and the temperature control range of the first temperature controller is partially overlapped with the temperature control range of the second temperature controller at the moment;
for example, the first temperature controller 41 sets a start temperature of 60 degrees and a stop temperature of 75 degrees; the second temperature controller 42 sets a start temperature of 55 degrees and a stop temperature of 70 degrees;
in practice, after the device is electrified and heated, the temperature is lower than the lower limit starting temperature (55 ℃), and the first electric heating tube 21 and the second electric heating tube 22 start heating simultaneously; at 70 degrees, the first electric heating pipe 21 stops heating, while the second electric heating pipe 22 is still continuing to heat; in practice, the electric heating tube is not enough in power due to severe environment, the temperature of the device is slowly reduced although the electric heating tube is heated, and the temperature of the whole device is slowly reduced after the first electric heating tube stops heating due to the fact that the second electric heating tube is continuously heated, so that the operation times of the temperature controller of the device are reduced in a multiplied manner, and the service lives of the temperature controller and the electric heating tube are prolonged in a multiplied manner.
Also, in order to reduce the number of operations of the thermostat, the electric heating pipe is reduced in the variation of cold and hot, and the life of the relevant parts is prolonged, as shown in fig. 3 and 4, in another embodiment,
the electric heating tube 20 further comprises a third electric heating tube 23; in this embodiment, the electrical connection further comprises:
the third electric heating tube 23 is electrically connected with an external power line (a connection mode shown in fig. 4), so that the power of the first electric heating tube and the power of the third electric heating tube are properly selected, and the use effect that the operation times of the temperature controller are reduced and the cold and hot changes of the electric heating tubes are reduced can be achieved;
generally, in this way, the heating power of the third electric heating tube is greater than or equal to the heating power of the first electric heating tube, for example, the power of both electric heating tubes is 600W.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (8)
1. An explosion-proof electric heating device, characterized in that the explosion-proof electric heating device comprises: the outer shell is provided with an electric heating pipe, a temperature sensor and an explosion-proof wiring cavity which are arranged in the outer shell;
an outer-protruding explosion-proof wire inlet is formed on the explosion-proof wiring cavity, one end of the explosion-proof wire inlet, which is far away from the cavity, penetrates through an opening in the outer shell to be exposed outside, and the explosion-proof wire inlet and the opening form close fit;
the explosion-proof wiring cavity is internally provided with a temperature controller, the electric heating pipe, the temperature sensor and an external power line which enters the device from the explosion-proof wire inlet are electrically connected, and the connecting points are all positioned in the explosion-proof wiring cavity.
2. The explosion-proof electric heating apparatus as set forth in claim 1, wherein the thermostat includes a first thermostat, the electric heating pipe includes a first electric heating pipe, and the temperature sensor includes a first temperature sensor; the electrical connection includes:
the first temperature sensor is electrically connected with the first temperature controller, and the first electric heating pipe is electrically connected with an external power line through the first temperature controller.
3. The explosion-proof electric heating apparatus as set forth in claim 2, wherein said thermostat further comprises a second thermostat, said electric heating tube further comprises a second electric heating tube, said temperature sensor further comprises a second temperature sensor; the electrical connection further comprises:
the second temperature sensor is electrically connected with the second temperature controller, and the second electric heating pipe is electrically connected with an external power line through the second temperature controller.
4. An explosion-proof electric heating apparatus as claimed in claim 3, wherein the temperature control range of the first temperature controller partially coincides with the temperature control range of the second temperature controller.
5. The explosion-proof electric heating apparatus as set forth in claim 2, wherein said electric heating tube further comprises a third electric heating tube; the electrical connection further comprises:
the third electric heating tube is electrically connected with an external power line.
6. The explosion-proof electric heating apparatus as set forth in claim 5, wherein the heating power of the third electric heating pipe is equal to or greater than the heating power of the first electric heating pipe.
7. The explosion-proof electric heating apparatus as claimed in claim 1, wherein the outer case has a shape of a prolate square body as a whole.
8. An explosion-proof electric heating apparatus as claimed in claim 1, wherein the outer housing is made of cast aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320373622.3U CN220152827U (en) | 2023-03-02 | 2023-03-02 | Explosion-proof electric heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320373622.3U CN220152827U (en) | 2023-03-02 | 2023-03-02 | Explosion-proof electric heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220152827U true CN220152827U (en) | 2023-12-08 |
Family
ID=89010175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320373622.3U Active CN220152827U (en) | 2023-03-02 | 2023-03-02 | Explosion-proof electric heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220152827U (en) |
-
2023
- 2023-03-02 CN CN202320373622.3U patent/CN220152827U/en active Active
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