Mine wellhead anti-freezing electric heater

Abstract

The utility model discloses an anti-freezing electric heater for a mine wellhead, relates to the technical field of electric heaters, and aims to solve the problems that effective self-circulation of water in the heater is difficult to realize and the practicability is reduced when anti-freezing heating is carried out on the mine wellhead in the prior art. An electric heating box is fixedly installed at the front end of the water collecting tank, a heating cavity and an equipment cavity are formed in the electric heating box, an electric heater is fixedly installed in the heating cavity of the electric heating box, a conveying pump is fixedly installed in the equipment cavity of the electric heating box, and a water pumping pipe is fixedly installed on one side of the conveying pump. One end of the water pumping pipe extends into the heating cavity, a water supply pipe is fixedly installed on the other side of the conveying pump, one end of the water supply pipe extends out of the electric heating box and is fixedly connected with the water collecting tank, a water return pipe is fixedly installed below one side of the electric heating box, and the water return pipe communicates with the heating cavity. And one end of the water return pipe is fixedly connected with the water collecting tank.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, specifically a mine wellhead antifreeze electric heater. Background Technology

[0002] In mine production, in order to prevent the mine entrance from freezing in winter, it is necessary to ensure that the environment at the mine entrance does not freeze, and to prevent accidents such as freezing or falling ice that may hinder safe production. Therefore, heating devices are needed to heat the mine entrance area.

[0003] For example, the patent with announcement number CN 213956086 U (a heat pipe type wellhead antifreeze heater): includes a heat exchanger composed of multiple heat pipes with internal liquid medium sealing. The top of the heat pipe is provided with a liquid filling valve and the bottom is provided with a plug. The main body of the heat pipe includes a condensing section and an evaporating section. The evaporating section is set in a water collection tank containing high-temperature fluid. The water collection tank is provided with an inlet and an outlet. The condensing section is set in a radiator air duct. The radiator air duct is provided with an air inlet and an air outlet. The air inlet is connected to the outside cold air, and the air outlet is connected to the mine air inlet.

[0004] While the aforementioned existing technologies have significantly extended service life and high heat transfer performance, they waste a large amount of hot water resources during use. This makes it difficult to achieve effective self-circulation of the water inside the heater when using it for antifreeze heating at mine wellheads, thus greatly reducing its practicality. Therefore, there is an urgent need in the market to develop an antifreeze electric heater for mine wellheads to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a mine wellhead antifreeze electric heater to solve the problem mentioned in the background art that it is difficult to achieve effective self-circulation of the water inside the heater when performing antifreeze heating at the mine wellhead, which reduces its practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mine wellhead antifreeze electric heater, comprising a water collection tank, an electric heating box fixedly installed at the front end of the water collection tank, a heating chamber and an equipment chamber respectively provided inside the electric heating box, an electric heater fixedly installed inside the heating chamber of the electric heating box, a delivery pump fixedly installed inside the equipment chamber of the electric heating box, a pumping pipe fixedly installed on one side of the delivery pump, one end of the pumping pipe extending into the interior of the heating chamber, a water supply pipe fixedly installed on the other side of the delivery pump, one end of the water supply pipe extending to the exterior of the electric heating box and fixedly connected to the water collection tank, a return water pipe fixedly installed below one side of the electric heating box, and the return water pipe communicating with the heating chamber, one end of the return water pipe being fixedly connected to the water collection tank.

[0007] Preferably, the water collection tank is provided with heat pipes inside, and multiple heat pipes are provided. A support frame is fixedly installed above the water collection tank, and a hot air box is fixedly installed above the support frame. The upper end of the heat pipe passes through the support frame and extends into the interior of the hot air box.

[0008] Preferably, a fan casing is fixedly installed on one side of the hot air box, and a fan is fixedly installed inside the fan casing.

[0009] Preferably, a heat dissipation sleeve is provided inside the hot air box along the outside of the heat pipe, and the heat dissipation sleeve is fixedly connected to the heat pipe. Multiple heat dissipation fins are provided at both the front and rear ends of the heat dissipation sleeve.

[0010] Preferably, the heat dissipation fins have a number of ventilation holes inside.

[0011] Preferably, a second heat insulation layer is fixedly installed on the inner side of the water collection tank.

[0012] Preferably, an insulation layer is fixedly installed inside the heating chamber of the electric heating box, a partition is fixedly installed on one side inside the heating chamber of the electric heating box, and a partition is provided on the side below the partition, and the partition is fixedly connected to the electric heating box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model integrates a water collection tank, an electric heating tank, a water supply pipe, a return water pipe, and a delivery pump assembly to form a closed-loop water circulation mechanism. In this mechanism, water enters the heating chamber for electric heating and is then sent back to the water collection tank through the water supply pipe. Simultaneously, some hot water returns to the heating chamber through the return water pipe for secondary electric heating or to maintain the temperature. This process effectively avoids the ineffective discharge and waste of hot water. This design not only improves energy utilization efficiency but also ensures the continuity and stability of antifreeze heating at the mine entrance, enhancing the practicality and economy of the heater.

[0015] 2. This utility model uses a heat pipe to absorb heat from the hot water in the water collection tank during heating. The heat exchange medium in the heat pipe absorbs the heat and transfers it to the hot air box. Then, the heated air is blown to the mine shaft opening by a fan. This process realizes heat recovery and reuse, and improves the heat transfer efficiency.

[0016] 3. This utility model can further increase the heat dissipation area and improve the heating effect at the mine entrance by setting up a heat dissipation sleeve and heat dissipation fins. At the same time, the setting of ventilation holes inside the heat dissipation fins can increase the air flow inside the heat dissipation fins, improve heat dissipation efficiency, and play a role in evenly distributing heat. Attached Figure Description

[0017] Figure 1 This is a front view of a mine wellhead antifreeze electric heater according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the electric heating box of this utility model;

[0019] Figure 3 This is a cross-sectional view of the water collection tank, support frame, and hot air box of this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of part A of this utility model.

[0021] In the diagram: 1. Water collection tank; 2. Electric heating box; 201. Heating chamber; 202. Equipment chamber; 3. Water supply pipe; 4. Water return pipe; 5. Electric heater; 6. Partition 1; 7. Partition 2; 8. Pumping pipe; 9. Transfer pump; 10. Insulation layer 1; 11. Support frame; 12. Hot air box; 13. Fan casing; 14. Insulation layer 2; 15. Heat pipe; 16. Fan; 17. Heat dissipation sleeve; 18. Heat dissipation fins. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 An embodiment of this utility model provides a mine wellhead antifreeze electric heater, including a water collection tank 1, an electric heating box 2 fixedly installed at the front end of the water collection tank 1, a heating chamber 201 and an equipment chamber 202 respectively provided inside the electric heating box 2, an electric heater 5 fixedly installed inside the heating chamber 201 of the electric heating box 2, a delivery pump 9 fixedly installed inside the equipment chamber 202 of the electric heating box 2, a water pump pipe 8 fixedly installed on one side of the delivery pump 9, one end of the water pump pipe 8 extending into the interior of the heating chamber 201, a water supply pipe 3 fixedly installed on the other side of the delivery pump 9, one end of the water supply pipe 3 extending to the exterior of the electric heating box 2 and fixedly connected to the water collection tank 1, a return water pipe 4 fixedly installed below one side of the electric heating box 2, and the return water pipe 4 communicating with the heating chamber 201, one end of the return water pipe 4 fixedly connected to the water collection tank 1.

[0024] By integrating the water collection tank 1, electric heating tank 2, water supply pipe 3, return water pipe 4, and delivery pump 9, a closed-loop water circulation mechanism can be formed. In this mechanism, water enters the heating chamber 201 for electric heating and is then sent back to the water collection tank 1 through the water supply pipe 3. At the same time, some hot water returns to the heating chamber 201 through the return water pipe 4 for secondary electric heating or to maintain the temperature. This process effectively avoids the ineffective discharge and waste of hot water, which is beneficial to the continuity and stability of mine wellhead antifreeze heating and enhances the practicality and economy of the heater.

[0025] Furthermore, the water collection tank 1 is equipped with multiple heat pipes 15, each containing a heat exchange medium. A support frame 11 is fixedly installed above the water collection tank 1, and a hot air box 12 is fixedly installed above the support frame 11. The upper ends of the heat pipes 15 penetrate the support frame 11 and extend into the hot air box 12. A fan casing 13 is fixedly installed on one side of the hot air box 12, and a fan 16 is fixedly installed inside the fan casing 13. During heating operation, the hot water in the water collection tank 1 exchanges heat with the medium in the heat pipes 15. In the heat exchange process, the medium absorbs heat and changes from a liquid to a gaseous state, rising to the top of the heat pipe 15 in the hot air box 12. The high-temperature gaseous medium exchanges heat with the air in the hot air box 12 through the wall of the heat pipe 15. The heated air is then blown out by the start of the fan 16 to the mine shaft opening, and external cold air is introduced into the hot air box 12. After the medium releases heat, it changes from a gaseous state to a liquid state and flows back down along the wall of the heat pipe 15 under the action of gravity. Then it flows to the bottom of the heat pipe 15 and exchanges heat with the hot water in the water collection tank 1.

[0026] The heat exchange medium in the heat pipe can absorb the heat from the hot water in the water collection tank and transfer it to the hot air box. The heated air is then blown towards the mine shaft opening by a fan. This process realizes heat recovery and reuse, and improves the heat transfer efficiency.

[0027] Furthermore, a heat dissipation sleeve 17 is provided inside the hot air box 12 along the outside of the heat pipe 15, and the heat dissipation sleeve 17 is fixedly connected to the heat pipe 15. Multiple heat dissipation fins 18 are provided at both the front and rear ends of the heat dissipation sleeve 17. Both the heat dissipation sleeve 17 and the heat dissipation fins 18 are made of die-cast aluminum alloy, and several ventilation holes are provided inside the heat dissipation fins 18.

[0028] The heat dissipation sleeve 17 and heat dissipation fins 18 can further increase the heat dissipation area and improve the heating effect of the mine wellhead. At the same time, the fan also accelerates the heat transfer, so that the mine wellhead can be heated faster. The ventilation holes inside the heat dissipation fins 18 can increase the airflow inside the heat dissipation fins and improve the heat dissipation efficiency. At the same time, the ventilation holes can also play a role in evenly distributing heat, making the heat dissipation effect more uniform.

[0029] Furthermore, a second insulation layer 14 is fixedly installed on the inner side of the water collection tank 1, and a first insulation layer 10 is fixedly installed on the inner side of the heating chamber 201 of the electric heating box 2. A first partition 6 is fixedly installed on one side inside the heating chamber 201 of the electric heating box 2, and a second partition 7 is provided on the side below the first partition 6. The second partition 7 is fixedly connected to the electric heating box 2. The arrangement of the first partition 6 and the second partition 7 can improve the flow path of the water in the heating chamber 201 and increase the heating time of the water.

[0030] The installation of insulation layer 2 14 can reduce the heat loss inside the water collection tank 1 and improve the heat retention capacity, which is conducive to the continuous heating effect at the mine wellhead. The installation of insulation layer 10 can reduce the heat loss inside the heating chamber 201 and improve the heating effect of the water.

[0031] Working Principle: During use, the integrated design of components such as the water collection tank 1, electric heating box 2, water supply pipe 3, return water pipe 4, and delivery pump 9 forms a closed-loop water circulation mechanism. In this mechanism, the water is electrically heated by the electric heater 5, and the heated water is sent back to the water collection tank 1 through the water supply pipe 3. At the same time, some hot water returns to the heating chamber through the return water pipe 4 for secondary electric heating or temperature maintenance. Meanwhile, the heat pipe 15 installed inside the water collection tank 1 absorbs the heat of the hot water through its internal heat exchange medium and transfers it to the hot air box 12. Inside the hot air box 12, the high-temperature gaseous medium exchanges heat with the air through the pipe wall of the heat pipe 15. The heated air is drawn out by the fan 16 and blown towards the mine shaft opening. The heat dissipation sleeve 17 and heat dissipation fins 18 installed inside the hot air box 12 further increase the heat dissipation area, which is beneficial to improving the heating effect of the mine shaft opening, thereby ensuring the continuity and stability of the anti-freezing electric heating of the mine shaft opening.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mine wellhead antifreeze electric heater, comprising a water collection tank (1), characterized in that: An electric heating box (2) is fixedly installed at the front end of the water collection tank (1). The electric heating box (2) is provided with a heating chamber (201) and an equipment chamber (202). An electric heater (5) is fixedly installed inside the heating chamber (201) of the electric heating box (2). A delivery pump (9) is fixedly installed inside the equipment chamber (202) of the electric heating box (2). A water pump (8) is fixedly installed on one side of the delivery pump (9). One end of the water pump (8) extends into the heating chamber (201). A water supply pipe (3) is fixedly installed on the other side of the delivery pump (9). One end of the water supply pipe (3) extends into the outside of the electric heating box (2) and is fixedly connected to the water collection tank (1). A return water pipe (4) is fixedly installed below one side of the electric heating box (2), and the return water pipe (4) is connected to the heating chamber (201). One end of the return water pipe (4) is fixedly connected to the water collection tank (1).

2. The mine wellhead antifreeze electric heater according to claim 1, characterized in that: The water collection tank (1) is equipped with a heat pipe (15) inside, and there are multiple heat pipes (15). A support frame (11) is fixedly installed above the water collection tank (1), and a hot air box (12) is fixedly installed above the support frame (11). The upper end of the heat pipe (15) passes through the support frame (11) and extends into the interior of the hot air box (12).

3. A mine wellhead antifreeze electric heater according to claim 2, characterized in that: A fan casing (13) is fixedly installed on one side of the hot air box (12), and a fan (16) is fixedly installed inside the fan casing (13).

4. A mine wellhead antifreeze electric heater according to claim 3, characterized in that: The heat sink (12) is provided with a heat dissipation sleeve (17) along the outside of the heat pipe (15) inside, and the heat dissipation sleeve (17) is fixedly connected to the heat pipe (15). The front end and rear end of the heat dissipation sleeve (17) are provided with multiple heat dissipation fins (18).

5. A mine wellhead antifreeze electric heater according to claim 4, characterized in that: The heat dissipation fins (18) have several ventilation holes inside.

6. A mine wellhead antifreeze electric heater according to claim 1, characterized in that: The inner side of the water collection tank (1) is fixedly installed with a second heat insulation layer (14).

7. A mine wellhead antifreeze electric heater according to claim 1, characterized in that: The heating chamber (201) of the electric heating box (2) is fixedly installed with a heat insulation layer (10), and a partition (6) is fixedly installed on one side of the heating chamber (201) of the electric heating box (2). A partition (7) is provided on one side below the partition (6), and the partition (7) is fixedly connected to the electric heating box (2).

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