Drawing type cooling fan of dry-type transformer

Abstract

The invention relates to the technical field of transformers, in particular to a pull-out type cooling fan of a dry-type transformer, comprising: a support assembly comprising a main box body and a dry-type transformer body arranged in the main box body, and mounting pieces arranged at the top end and the bottom end of the dry-type transformer body and symmetrically arranged to ensure connection stability; the cooling fan body and the dry-type transformer body are arranged in the two box bodies in a separated mode, the trouble of later replacement is reduced, the cooling fan body is connected with the secondary box body through the drawing piece, and the cooling fan body and the dry-type transformer body are installed in the two box bodies respectively, so that the cooling fan body and the dry-type transformer body are installed in the two box bodies respectively. And the drawing type design is realized through the guide rails and the sliding wheels. Therefore, the fan can be replaced and maintained under the condition that the work of the dry type transformer body is not interrupted. Power failure is not needed in the maintenance process, so that the influence of frequent power failure on stable power supply of a power grid is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a pull-type cooling fan for a dry-type transformer. Background Art

[0002] As a key equipment widely used in power systems, the stability and reliability of dry-type transformers directly affect the normal operation of the entire power system. In order to ensure effective heat dissipation of dry-type transformers in high temperature environments, cooling fans are usually installed.

[0003] However, traditional dry-type transformer cooling fans have certain maintenance difficulties. When a cooling fan fails, according to the conventional maintenance process, the dry-type transformer needs to be powered off first, and then the faulty fan in the cabinet needs to be removed and replaced. Since the fan is located at the bottom of the dry-type transformer and is located in a cabinet, the dry-type transformer must be powered off before replacing the fan, which can reduce certain safety hazards. However, such frequent power outages for maintenance not only affect the stable power supply of the power grid, but also bring additional economic losses, and fan replacement is inconvenient. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem that it is inconvenient to replace the fan due to power outage, and that frequent power outages for maintenance affect the stable power supply of the power grid, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a pull-type cooling fan for a dry-type transformer.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a pull-type cooling fan for a dry-type transformer, comprising: a support assembly, comprising a main box body, a dry-type transformer body arranged inside the main box body, the dry-type transformer body being connected to the main box body through a mounting member, the mounting member being arranged at the top and bottom ends of the dry-type transformer body and being symmetrically arranged to ensure the stability of the connection; and

[0008] The heat dissipation assembly includes a secondary box body arranged at the bottom end of the main box body and a cooling fan body arranged inside the secondary box body, so that the cooling fan body and the dry-type transformer body are separately arranged inside the two boxes, reducing the trouble of later replacement. The cooling fan body is connected to the secondary box body through a drawer.

[0009] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the support assembly further includes heat dissipation ports arranged on both sides of the main box body, the top of the main box body is inclined, and a warning sign is provided on the sealing door of the main box body.

[0010] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the mounting member can adjust its mounting height up and down according to the size of the dry-type transformer body and actual needs, and the mounting member is connected to the inner wall of the main box through an adjustment plate.

[0011] As a preferred solution of the pull-out cooling fan for the dry-type transformer of the present invention, the mounting member includes a clamp arranged at the top of the dry-type transformer body, the clamp is symmetrically arranged with respect to the central axis of the dry-type transformer body, and an iron core is installed at the top of the dry-type transformer body between the two clamps.

[0012] As a preferred solution of the pull-type cooling fan for dry-type transformers described in the present invention, the mounting member further comprises a mounting plate arranged at the top of the clamp, a lifting ring is installed at the top of the mounting plate for lifting the dry-type transformer body for installation, and a copper bus is installed at the bottom of the mounting plate.

[0013] As a preferred solution of the pull-type cooling fan for the dry-type transformer of the present invention, the adjustment plate includes a horizontal mounting plate arranged on the inner wall of the main box body, vertical mounting plates are installed at both ends of the horizontal mounting plate, and a fixing plate is installed between the two horizontal mounting plates, and the installation position of the dry-type transformer body can be adjusted up and down on the vertical mounting plate through the fixing plate.

[0014] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the pull-out member includes guide rails arranged on both sides of the inner wall of the secondary box body, and sliding wheels are installed on the side walls of the guide rails. The moving direction of the sliding wheels is limited by the guide rails, and the sliding wheels move along the length direction of the guide rails.

[0015] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the pull-out member further includes a drawer body arranged inside the secondary box body, and the drawer body is connected to a sliding wheel, wherein the sliding wheel is for ensuring smooth movement of the drawer body.

[0016] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the pull-out member further includes a handle arranged at the end of the drawer body, and a buffer plate is installed at the end of the drawer body away from the handle to reduce the vibration caused by collision when the drawer body is pushed inward.

[0017] As a preferred solution of the pull-out cooling fan for dry-type transformers described in the present invention, the cooling fan body and the dry-type transformer body use quick-plug connectors to quickly disconnect and connect the power supply when replacing the cooling fan body.

[0018] Beneficial effects of the present invention: The present invention installs the cooling fan body and the dry-type transformer body in two boxes respectively, and realizes a pull-out design through guide rails and sliding wheels. This design makes the maintenance and replacement of the cooling fan body very convenient. There is no need to disassemble other parts. You only need to gently pull out the drawer body to operate. Use a quick-plug connector to connect the cooling fan body to the power supply of the dry-type transformer body to ensure the rapidity of connection and disconnection. This greatly reduces the time required to replace the fan and improves work efficiency. Due to the pull-out design of the cooling fan body, the fan can be replaced and maintained without interrupting the operation of the dry-type transformer body. This means that there is no need for power outages during maintenance, thereby avoiding the impact of frequent power outages on the stable power supply of the power grid. The design of quick replacement and convenient maintenance reduces the downtime of the equipment, ensures the continuous operation of the dry-type transformer, and further improves the stability and reliability of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without any creative labor.

[0020] Figure 1 This is the overall schematic diagram of the pull-type cooling fan for dry-type transformers.

[0021] Figure 2 This is a schematic diagram of the overall disassembled structure of the pull-type cooling fan for dry-type transformers.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the main box and sub-box of the pull-out cooling fan of the dry-type transformer.

[0023] Reference numerals:

[0024] 100, support assembly; 101, main box; 102, dry-type transformer body; 103, mounting piece; 104, heat dissipation port; 105, adjustment plate;

[0025] 103a, clamp; 103b, iron core; 103c, mounting plate; 103d, lifting ring; 103e, copper busbar;

[0026] 105a, horizontal mounting plate; 105b, vertical mounting plate; 105c, fixing plate;

[0027] 200, heat dissipation assembly; 201, secondary box; 202, cooling fan body; 203, drawer;

[0028] 203a, guide rail; 203b, sliding wheel; 203c, drawer body; 203d, handle; 203e, buffer plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1, reference Figure 1-2 , which is the first embodiment of the present invention, provides a pull-type cooling fan for a dry-type transformer, including a basic support component 100 structure, emphasizing the adjustability and stability of the mounting member 103.

[0034] Specifically, the support assembly 100 includes a main box body 101 and a dry-type transformer body 102 arranged inside the main box body 101. The dry-type transformer body 102 is connected to the main box body 101 through a mounting member 103. The mounting member 103 is arranged at the top and bottom ends of the dry-type transformer body 102 and is symmetrically arranged to ensure the stability of the connection.

[0035] Furthermore, the support assembly 100 further includes heat dissipation openings 104 disposed on both sides of the main box body 101 . The top of the main box body 101 is disposed at an angle, and a warning sign is disposed on the sealed door of the main box body 101 .

[0036] Furthermore, the mounting member 103 can adjust its installation height up and down according to the size of the dry-type transformer body 102 and actual needs. The mounting member 103 is connected to the inner wall of the main box 101 through the adjustment plate 105. The mounting member 103 is connected to the inner wall of the main box 101 through the adjustment plate 105, and its installation height can be adjusted according to the size of the dry-type transformer body 102 and actual needs. The symmetrically arranged mounting members 103 ensure the stability and safety of the dry-type transformer body 102 in the main box 101, and avoid damage caused by vibration or uneven force.

[0037] Operation process: Place the dry-type transformer body 102 inside the main box 101 and fix it in the main box 101 using the mounting member 103. Adjust the height of the mounting member 103 to ensure the stability and heat dissipation effect of the dry-type transformer body 102. Install heat dissipation ports 104 on both sides of the main box 101 to ensure that the position and number of the heat dissipation ports 104 meet the heat dissipation requirements. Fix the sub-box 201 on one side of the main box 101 to ensure that it is tightly connected to the main box 101.

[0038] Example 2, reference Figure 2-3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the mounting member 103 is described in more detail, and in particular, a lifting function is added to facilitate the installation of the dry-type transformer body 102.

[0039] Specifically, the mounting member 103 includes a clamp 103a disposed at the top of the dry-type transformer body 102, the clamp 103a is symmetrically arranged with respect to the central axis of the dry-type transformer body 102, and an iron core 103b is installed at the top of the dry-type transformer body 102 between two clamps 103a.

[0040] Furthermore, the mounting member 103 also includes a mounting plate 103c disposed on the top of the clamp 103a, a lifting ring 103d is installed on the top of the mounting plate 103c for lifting the dry-type transformer body 102 for installation, and a copper bus 103e is installed on the bottom of the mounting plate 103c.

[0041] The rest of the structure is the same as that of Example 1.

[0042] Operation process: Use a hoisting device such as a crane or a manual hoist to hang the sling on the lifting ring 103d to ensure that the sling is firm and reliable. Slowly lift the hoisting equipment to lift the dry-type transformer body 102 off the ground to ensure the stability and safety of the dry-type transformer body 102 during the hoisting process. Hoist the dry-type transformer body 102 to the predetermined position inside the main box 101 to ensure that the connection point between the clamp 103a and the inner wall of the main box 101 is aligned. Fix the clamp 103a and the mounting plate 103c to the horizontal mounting plate 105a of the main box 101 to ensure the stability and safety of the dry-type transformer body 102. Adjust the position of the clamp 103a so that its connection point with the inner wall of the main box 101 is firm and reliable. Use a quick-connect connector to connect the cooling fan body 202 to the power supply of the dry-type transformer body 102 to ensure a reliable connection. Connect the copper bus 103e to the electrical contact of the dry-type transformer body 102 to ensure the reliability and safety of the electrical connection. Check that all connections are secure and that there are no loose or damaged parts. Turn on the power and test whether the cooling fan body 202 is working properly. Observe its operating status and air volume. Use a temperature sensor to monitor the temperature of the dry-type transformer body 102 to ensure that it is operating within the normal range. Perform weekly inspections of the equipment, check the operating status and air volume of the cooling fan body 202, and clean the dust and debris from the heat dissipation port 104 and the inside of the main box 101.

[0043] Example 3, reference Figure 2-3 , which is the third embodiment of the present invention. This embodiment is different from the above embodiments in that: the focus is on the design of the cooling fan body 202, and the concept of a pull-out cooling fan body 202 is proposed, which effectively solves the problem of inconvenient replacement of traditional cooling systems.

[0044] Specifically, the heat dissipation assembly 200 includes a sub-box 201 arranged at the bottom of the main box 101 and a cooling fan body 202 arranged inside the sub-box 201, so that the cooling fan body 202 and the dry-type transformer body 102 are separately arranged inside the two boxes, reducing the trouble of later replacement. The cooling fan body 202 is connected to the sub-box 201 through a drawer 203. The cooling fan body 202 is installed in the sub-box 201, and a drawer design is realized by a guide rail 203a and a sliding wheel 203b, which is convenient for maintenance and replacement. After the cooling fan body 202 is started, the external cold air is sucked in by forced convection and enters the main box 101 through the heat dissipation port 104. The cold air is directly blown to the high and low pressure cooling air ducts of the coil of the dry-type transformer body 102 to take away the heat and improve the heat dissipation effect. The connection between the main box body 101 and the sub-box body 201 is through-set, and the drawer body 203c is insulated. After the cooling fan body 202 is pulled out, it will not affect the dry-type transformer body 102, and the safety of replacing the cooling fan body 202 is improved.

[0045] Furthermore, the drawer 203 includes guide rails 203a disposed on both sides of the inner wall of the secondary box body 201, and sliding wheels 203b are installed on the side walls of the guide rails 203a. The moving direction of the sliding wheel 203b is limited by the guide rails 203a, and the sliding wheel 203b moves along the length direction of the guide rails 203a.

[0046] Furthermore, the drawer 203 further includes a drawer body 203c disposed inside the secondary box 201, and the drawer body 203c is connected to a sliding wheel 203b, wherein the sliding wheel 203b is for ensuring that the drawer body 203c moves smoothly.

[0047] Furthermore, the drawer 203 also includes a handle 203d arranged at the end of the drawer body 203c, and a buffer plate 203e is installed at one end of the drawer body 203c away from the handle 203d to reduce the vibration caused by collision when the drawer body 203c is pushed inward.

[0048] Furthermore, the cooling fan body 202 and the dry-type transformer body 102 use quick-connect connectors to quickly disconnect and connect the power supply when the cooling fan body 202 is replaced.

[0049] The rest of the structure is the same as that of Example 2.

[0050] Operation process: Prepare all necessary tools and materials, such as screwdrivers, wrenches, guide rails, pull-out trolleys, etc. Make sure all parts are intact, especially the guide rails 203a and the sliding wheels 203b. Divide the box into two spaces, the main box 101 and the secondary box 201, and install the dry-type transformer body 102 and the cooling fan body 202 separately through the two boxes. Install the dry-type transformer body 102 inside the main box 101. Use the mounting piece 103 to fix the dry-type transformer body 102 in the main box 101, and ensure that the top and bottom ends of the mounting piece 103 are symmetrically arranged to ensure the stability of the connection. According to the size of the dry-type transformer body 102 and actual needs, adjust the height of the mounting piece 103 so that it is firmly connected to the inner wall of the main box 101 through the adjustment plate 105. Install the cooling fan body 202 inside the secondary box 201. Install the guide rails 203a on both sides of the inner wall of the secondary box 201. Install the sliding wheel 203b on the guide rail 203a to ensure that the sliding wheel 203b can move smoothly in the guide rail 203a. Connect the drawer body 203c to the sliding wheel 203b to ensure that the drawer body 203c can slide smoothly along the guide rail 203a. Install the handle 203d at the end of the drawer body 203c for easy operation. Install the buffer plate 203e at the end of the drawer body 203c away from the handle 203d to reduce the vibration caused by the collision when the drawer body 203c is pushed inward. Use a quick-connect connector to connect the cooling fan body 202 to the power supply of the dry-type transformer body 102 to ensure a reliable connection. Check that all connections are firm and that there are no loose or damaged parts. Turn on the power and test whether the cooling fan body 202 is working properly.

[0051] When the cooling fan body 202 is damaged and needs to be replaced, confirm that the dry-type transformer body 102 is in normal working condition and there is no need to shut down the power supply. Prepare a new cooling fan body 202 and necessary tools. Open the cabinet door of the secondary box 201 to ensure that there is enough operating space. Use the handle 203d to gently pull out the drawer body 203c so that the cooling fan body 202 slides out of the secondary box 201. Use a quick-connect connector to disconnect the power connection between the cooling fan body 202 and the dry-type transformer body 102. Remove the faulty cooling fan body 202 from the drawer body 203c, so that there is no need for personnel to disconnect the power supply of the dry-type transformer body 102 and then drill into the box to disassemble and replace the cooling fan body 202. Pulling out the cooling fan body 202 directly makes it easier to replace the cooling fan body 202, and the separate arrangement of the cooling fan body 202 and the dry-type transformer body 102 improves safety. Install the new cooling fan body 202 into the drawer body 203c to ensure that it is firmly installed. Use handle 203d to push drawer body 203c together with new cooling fan body 202 back into sub-box 201, ensure that sliding wheel 203b slides smoothly, and lock the buckle after drawer body 203c is in place.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Dry-type transformer pull-out cooling fan, characterized by: include, A support assembly (100) comprises a main box (101), a dry-type transformer body (102) arranged inside the main box (101), the dry-type transformer body (102) being connected to the main box (101) via a mounting member (103), the mounting member (103) being arranged at the top and bottom ends of the dry-type transformer body (102) and being symmetrically arranged to ensure the stability of the connection; and The heat dissipation assembly (200) comprises a secondary box (201) arranged at the bottom end of the main box (101) and a cooling fan body (202) arranged inside the secondary box (201), so that the cooling fan body (202) and the dry-type transformer body (102) are arranged separately and located inside the two boxes, thereby reducing the trouble of later replacement. The cooling fan body (202) is connected to the secondary box (201) through a drawer (203).

2. The pull-type cooling fan for dry-type transformer according to claim 1, characterized in that: The support assembly (100) further comprises heat dissipation openings (104) arranged on both sides of the main box body (101); the top end of the main box body (101) is arranged at an angle, and a warning sign is arranged on the sealed door of the main box body (101).

3. The pull-type cooling fan for dry-type transformer according to claim 2, characterized in that: The mounting member (103) can adjust its mounting height up and down according to the size of the dry-type transformer body (102) and actual needs, and the mounting member (103) is connected to the inner wall of the main box (101) through an adjustment plate (105).

4. The pull-type cooling fan for dry-type transformer according to claim 3, characterized in that: The mounting member (103) comprises a clamp (103a) arranged at the top of the dry-type transformer body (102); the clamp (103a) is symmetrically arranged with respect to the central axis of the dry-type transformer body (102); an iron core (103b) is installed at the top of the dry-type transformer body (102) and is located between the two clamps (103a).

5. The pull-type cooling fan for dry-type transformer according to claim 4, characterized in that: The mounting member (103) further comprises a mounting plate (103c) arranged at the top end of the clamp (103a); a lifting ring (103d) is installed at the top end of the mounting plate (103c) for lifting the dry-type transformer body (102) for installation; and a copper busbar (103e) is installed at the bottom end of the mounting plate (103c).

6. The pull-type cooling fan for dry-type transformer according to claim 5, characterized in that: The adjustment plate (105) comprises a transverse mounting plate (105a) arranged on the inner wall of the main box body (101), and vertical mounting plates (105b) are installed at both ends of the transverse mounting plate (105a), wherein a fixing plate (105c) is installed between the two transverse mounting plates (105a), and the fixing plate (105c) can adjust the installation position of the dry-type transformer body (102) up and down on the vertical mounting plate (105b) through the fixing plate (105c).

7. The pull-type cooling fan for dry-type transformer according to claim 6, characterized in that: The drawer (203) comprises guide rails (203a) arranged on both sides of the inner wall of the secondary box (201), and sliding wheels (203b) are installed on the side walls of the guide rails (203a). The moving direction of the sliding wheels (203b) is limited by the guide rails (203a), and the sliding wheels (203b) move along the length direction of the guide rails (203a).

8. The pull-type cooling fan for dry-type transformer according to claim 7, characterized in that: The drawer (203) further comprises a drawer body (203c) arranged inside the secondary box (201), wherein the drawer body (203c) is connected to a sliding wheel (203b), wherein the sliding wheel (203b) is for ensuring smooth movement of the drawer body (203c).

9. The pull-type cooling fan for dry-type transformer according to claim 8, characterized in that: The drawer (203) further comprises a handle (203d) arranged at the end of the drawer body (203c), and a buffer plate (203e) is installed at one end of the drawer body (203c) away from the handle (203d) to reduce the vibration caused by collision when the drawer body (203c) is pushed inward.

10. The pull-type cooling fan for dry-type transformer according to claim 9, characterized in that: The cooling fan body (202) and the dry-type transformer body (102) use quick-connect connectors to quickly disconnect and connect the power supply when replacing the cooling fan body (202).

Images