External electric valve motor temperature reducing device

Abstract

The utility model provides an external electric valve motor temperature reducing device, including the fin, the inside of fin is equipped with semiconductor radiator, and semiconductor radiator is contacted with the outer surface of electric valve motor, the end surface of fin is fixed with the batten, and the fan is installed on the batten, and the air direction of fan is towards the fin, the utility model provides an external electric valve motor temperature reducing device can cool down motor, guarantees normal operation.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation equipment, and in particular to an external electric valve motor cooling device. Background Technology

[0002] Excessive opening and closing of electric valves in a short period can cause the motor to overheat. If the motor overheats, it will trigger the valve's protection alarm and prevent operation, and in severe cases, burn out the motor. Before starting the machine, numerous tests should be conducted to open and close the valve. If the valve motor overheats and cannot cool down quickly enough, the valve will be unable to open or close, causing delays in grid connection, reduced power generation, and economic losses.

[0003] CN202010376199 - A motor with built-in heat dissipation, which dissipates heat from the motor by air cooling; CN201010122258 - A motor housing with heat dissipation fins and its manufacturing method, which dissipates heat by attaching heat dissipation fins to the motor housing; however, the heat dissipation effect of both is not ideal. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an external electric valve motor cooling device to cool the electric valve motor and prevent the motor from overheating due to repeated switching in a short period of time.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An external electric valve motor cooling device includes a heat sink, a semiconductor heat sink installed inside the heat sink, and the semiconductor heat sink in contact with the outer surface of the electric valve motor; a strip is fixed to the end face of the heat sink, and a fan is installed on the strip, with the fan's airflow directed towards the heat sink.

[0006] The heat sink is made of aluminum alloy.

[0007] The heat sink includes a sleeve, and multiple sets of outwardly extending fins are fixed circumferentially on the outer wall of the sleeve.

[0008] The slats are supported by carbon steel, and the section of the slats where the fan is mounted is bent toward the motor side, with a bending angle between 0 and 30°.

[0009] The fans are arranged on the left and right sides of the motor or on all sides.

[0010] There are two slats on the same side, and a rotating shaft is rotatably installed between the two slats. The rotating shaft is fixed to the mounting plate. A fan is installed on the end face of the mounting plate. The end of the rotating shaft is locked by a locking mechanism.

[0011] The locking mechanism includes a first gear fixed on the rotating shaft, which meshes with a second gear. The second gear is inserted into the fixed column and locked by a nut.

[0012] The column is fixed on the slats. The lower part of the column has a square section that matches the square through hole of the second gear. The length of the square section is the same as the thickness of the second gear. The upper part of the column is a threaded rod.

[0013] The fan is secured with screws, and a protective mesh cover is installed on the outside of the fan.

[0014] The semiconductor heat sink is divided into multiple groups and evenly distributed circumferentially.

[0015] This utility model provides an external electric valve motor cooling device, which has the following technical effects: 1) By installing this device, the motor temperature can be reduced, preventing it from becoming too high. The electric valve can be tested multiple times without affecting the grid connection time, thus ensuring power generation and improving economic efficiency.

[0016] 2) Ensure that the motor temperature does not exceed the limit when the valve is opened and closed repeatedly in a short period of time, thereby preventing motor damage and extending the service life of the valve motor.

[0017] 3) Since this device absorbs heat at the cold end of the semiconductor heat sink and releases heat at the hot end to the aluminum alloy heat sink, and the fan blows the heat into the air, heat dissipation and cooling are achieved. After the motor cools down, the valve temperature will not exceed the limit, so there is no need to arrange personnel to measure the valve temperature, thus reducing the number of personnel required.

[0018] 4) This device can be used in thermal power plants, chemical plants and building HVAC industries, and can provide certain economic value.

[0019] 5) By setting a rotatable shaft on the strip, fixing a mounting plate on the shaft, and mounting the fan on the mounting plate, the angle of the fan can be adjusted according to actual needs; by setting a locking mechanism, after adjustment, the second gear can be fixed in place, thereby restricting the rotation of the first gear, so that the shaft, mounting plate, and fan cannot rotate, thus achieving locking. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a front view of the present invention.

[0021] Figure 2 This is the left view of the present invention.

[0022] Figure 3 This is a top view of the present invention.

[0023] Figure 4 This is a circuit block diagram of the present invention.

[0024] Figure 5This is a schematic diagram (first view) of the connection structure of the mounting plate on the strip in this utility model.

[0025] Figure 6 This is a schematic diagram (second perspective) of the connection structure of the mounting plate on the strip in this utility model.

[0026] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0027] In the diagram: Screw 1, Fan 2, Slat 3, Heat sink 4, Semiconductor heat sink 5, Shaft 3.1, Mounting plate 3.2, First gear 3.3, Second gear 3.4, Column 3.5, Nut 3.6. Detailed Implementation

[0028] like Figure 1-4 As shown, an external electric valve motor cooling device includes a heat sink 4 made of aluminum alloy. The heat sink 4 includes a sleeve 4.1 that matches the motor. Multiple sets of outwardly extending fins 4.2 are fixed circumferentially at the outer end of the sleeve 4.1. Multiple sets of semiconductor heat sinks 5, model TEC1-12703, are fixed circumferentially on the inner wall of the heat sink 4. The inner side of the semiconductor heat sink 5 contacts the outer surface of the electric valve motor, transferring heat from the motor 6 to the heat sink 4 for cooling. Two strips 3 are welded to each end of the sleeve 4.1, each strip having two threaded holes. A fan 2 is fixed to the two strips 3 using four screws 1.

[0029] Preferably, the length * width * thickness of the strip 3 is 235.5mm * 10mm * 5mm, and the material is carbon steel. The strip 3 itself can be bent to a certain extent. In actual operation, the angle of the strip 3 can be adjusted from 0-30°, and the fan 2 can blow air onto the aluminum alloy heat sink at different angles to force-cool the aluminum alloy heat sink.

[0030] Preferably, fan 2 is a cooling fan with a metal protective mesh cover, which can prevent injury to personnel.

[0031] Preferably, there are 36 fins 4.2, the thickness of which is 5mm. They are fixed on a sleeve 4.1 with an inner diameter of 169mm and a thickness of mm. One end of the sleeve 4.1 extends outward for a certain length. The sleeve 4.1 serves both to dissipate heat and to fix the semiconductor heat sink 5.

[0032] Fan: Length: 119mm, Width: 119mm, Thickness: 25mm.

[0033] Screw: M4.5, 9mm in length, made of carbon steel.

[0034] like Figure 5-7 As shown, preferably, in order to adjust the angle of the fan 2 without obstruction, a rotating shaft 3.1 is rotatably installed between a pair of slats 3. A mounting plate 3.2 is fixed on the rotating shaft 3.1, and the fan 2 is installed on the end face of the mounting plate 3.2. When it is necessary to adjust the angle of the fan 2, it is only necessary to rotate the mounting plate 3.2 left and right around the axis of the rotating shaft 3.1.

[0035] To achieve locking of the rotating shaft 3.1 after adjustment, a first gear 3.3 is fixed on the rotating shaft 3.1 and located outside the plate 3. The first gear 3.3 meshes with the second gear 3.4. The second gear 3.4 has a square through hole in its center, and a column 3.5 is fixed to the corresponding side end of the plate 3. The lower part of the column 3.5 has a square segment that matches the square through hole of the second gear 3.4. The length of the square segment is the same as the thickness of the second gear 3.4. The upper part of the column 3.5 is a threaded rod, and the second gear 3.4 passes through the column 3.5. The lower end of the second gear 3.4 fits against the side end of the plate 3, and the upper end of the second gear 3.4 is fixed by a nut 3.6. The side wall of the second gear 3.4 meshes with the first gear 3.3, thus restricting the rotation of the first gear 3.3.

[0036] When the angle of the mounting plate 3.2 needs to be adjusted, unscrew the nut 3.6, remove the second gear 3.4, and after adjustment, reinstall and fix the second gear 3.4. The second gear 3.4 will mesh with the first gear 3.3 again to achieve locking.

[0037] Working principle and process: The semiconductor heat sink 5 absorbs heat at the cold end and releases heat at the hot end, and the heat is transferred to the heat sink 4. The fan 2 cools the heat sink 4 by air, thus realizing heat transfer.

Claims

1. An external electric valve motor cooling device, characterized in that: It includes a heat sink (4), a semiconductor heat sink (5) is installed inside the heat sink (4), and the semiconductor heat sink (5) is in contact with the outer surface of the motor of the electric valve; a strip (3) is fixed on the end face of the heat sink (4), and a fan (2) is installed on the strip (3), with the airflow direction of the fan (2) facing the heat sink (4).

2. The external electric valve motor cooling device according to claim 1, characterized in that: The heat sink (4) is made of aluminum alloy.

3. The external electric valve motor cooling device according to claim 2, characterized in that: The heat sink (4) includes a sleeve (4.1), and multiple sets of outwardly extending fins (4.2) are fixed on the outer wall of the sleeve (4.1) in the circumferential direction.

4. The external electric valve motor cooling device according to claim 3, characterized in that: The slats (3) are supported by carbon steel. The section of the slats (3) on which the fan (2) is mounted is bent toward the motor side, with the bending angle between 0 and 30°.

5. The external electric valve motor cooling device according to claim 4, characterized in that: The fan (2) is arranged on the left and right sides of the motor or on all sides.

6. The external electric valve motor cooling device according to claim 5, characterized in that: There are two slats (3) on the same side, and a rotating shaft (3.1) is rotatably installed between the two slats (3). The rotating shaft (3.1) is fixed to the mounting plate (3.2). A fan (2) is installed on the end face of the mounting plate (3.2). The end of the rotating shaft (3.1) is locked by a locking mechanism.

7. The external electric valve motor cooling device according to claim 6, characterized in that: The locking mechanism includes a first gear (3.3) fixed on a rotating shaft (3.1), which meshes with a second gear (3.4). The second gear (3.4) is fitted into a fixed column (3.5) and locked by a nut (3.6).

8. The external electric valve motor cooling device according to claim 7, characterized in that: The column (3.5) is fixed on the strip (3). The lower part of the column (3.5) is provided with a square segment that matches the square through hole of the second gear (3.4). The length of the square segment is the same as the thickness of the second gear (3.4). The upper part of the column (3.5) is a threaded rod.

9. The external electric valve motor cooling device according to claim 8, characterized in that: The fan (2) is fixed by screws (1), and a protective mesh cover is installed on the outside of the fan (2).

10. The external electric valve motor cooling device according to claim 9, characterized in that: The semiconductor heat sink (5) is divided into multiple groups and evenly distributed along the circumferential direction.

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