Wind power box-type substation

Abstract

The utility model relates to the technical field of transformer substations, in particular to a wind power box-type transformer substation which comprises a transformer substation body, a heat exchange cavity and a refrigerating device are arranged on the inner side and the outer side of the transformer substation body respectively, a heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is connected with the refrigerating device through a pipeline. A heat exchange plate and a supporting structure are further arranged in the transformer substation body, the heat exchange plate is arranged on the supporting structure, the inlet end of the heat exchange plate is connected with the heat exchange cavity, and fans are arranged at the outlet end of the heat exchange plate and used for exhausting gas after heat exchange. According to the utility model, external air can be selectively cooled, the heat dissipation effect is good, generated condensate water can be rapidly discharged, meanwhile, the heat dissipation and moisture-proof requirements are met, the structure is simple, production and processing are convenient, and rapid assembly can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substations, in particular to a wind power box-type transformer substation. Background Art

[0002] The substation is a transition device connecting the wind farm to the user. Since wind farms are often built in areas such as coasts, ridges, grasslands and Gobi, with sparse populations and relatively remote locations compared to users, substations are needed to transmit the electricity generated by the wind farm to users. The electrical components in the wind power substation require good heat dissipation for stable operation and also require moisture-proof treatment. The existing technology usually uses a fan to directly send outside air into the box for cooling. When the outside air humidity is high, it is easy to cause electrical components and equipment to get damp, thereby causing electrical equipment failure. When the gas in the box is cooled, condensation water is easy to be generated, which affects the operating safety of the electrical components. Moreover, once the temperature in the box rises, a humid environment will still be formed, and the moisture-proof effect is poor.

[0003] The Chinese patent with publication number CN214227592U discloses a moisture-proof box for a prefabricated substation, including a shell, a top cover and a mounting plate located in the middle of the shell. The mounting plate is a hollow structure, and a partition is fixedly arranged inside the mounting plate. The partition separates the mounting plate into a left heat dissipation cavity close to the left mounting cavity and a right heat dissipation cavity close to the right mounting cavity. An air inlet pipe is connected between the left heat dissipation cavity and the outside, and the right heat dissipation cavity is connected to the air inlet of the blower. The air outlet of the blower is connected to an air outlet pipe extending out of the shell. This structure has good heat dissipation performance, but condensed water is easily generated in the box after heat exchange with the outside air, which poses a hidden danger to the operation safety of the electrical appliance.

[0004] Therefore, there is an urgent need to provide a wind power box-type substation to solve the above problems. Utility Model Content

[0005] In view of the above problems, the utility model provides a wind power box-type substation with good heat dissipation effect, especially when the humidity of the outside air is high, which meets the heat dissipation and moisture-proof requirements of the substation, has a simple structure, is easy to produce and process, and can be quickly assembled.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A wind power box-type substation comprises a substation body, wherein a heat exchange cavity and a refrigeration device are respectively arranged inside and outside the substation body, a heat exchanger is arranged in the heat exchange cavity, and the heat exchanger is connected to the refrigeration device through a pipeline; a heat exchange plate and a supporting structure are also arranged in the substation body, wherein the heat exchange plate is vertically arranged on the supporting structure, the inlet end of the heat exchange plate is connected to the heat exchange cavity, and a fan is arranged at the outlet end of the heat exchange plate for discharging the gas after heat exchange.

[0008] Preferably, a first channel is provided in the heat exchange plate, an air inlet pipe is provided between the first channel and the heat exchange cavity, and the air inlet pipe is provided to be inclined downward at one end close to the first channel.

[0009] Preferably, the support structure comprises retaining ribs, and a limiting groove is arranged on the periphery of the retaining ribs, the retaining ribs abut against the inner wall surface of the heat exchange plate, and the heat exchange plate is limitedly assembled into the limiting groove.

[0010] Preferably, the supporting structure further comprises a water guiding structure, and the water guiding structure is located on at least one side of the heat exchange plate.

[0011] Preferably, the water guiding structure comprises a boss, the boss is provided with a first inclined surface extending along a first direction, and a side of the first inclined surface close to the heat exchange plate is lower than the other side.

[0012] Preferably, the water guiding structure further comprises a water guiding portion arranged adjacent to the boss, one side of the water guiding portion abuts against the heat exchange plate, and the water guiding portion is provided with a second inclined surface extending along the second direction.

[0013] Preferably, a second drainage hole is arranged at one end of the supporting structure, and a first drainage hole is arranged at one end of the retaining rib close to the second drainage hole, and the first drainage hole is arranged higher than the second drainage hole.

[0014] Preferably, a top cover is arranged on the top of the substation body, and a plurality of supports are arranged on the bottom of the substation body.

[0015] Preferably, a ventilation net is provided on one side of the substation body, and the ventilation net is located on the side of the heat exchange cavity.

[0016] Preferably, a door body is provided on the other side of the substation body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a wind power box-type substation provided with a refrigeration device which can selectively cool the external gas, effectively improving the heat dissipation effect; the substation cooperates with the support structure and the heat exchange plate so that the cooling water generated after the external gas is cooled can be quickly discharged through the drainage structure arranged on the support structure, meeting the heat dissipation and moisture-proof requirements, and can also effectively prevent the condensed water from being vaporized again to form a high temperature and high humidity environment; the substation includes a substation body, a top cover and a base, and a door body arranged on the substation body, which has a simple structure and is easy to produce and process, and can also realize the rapid assembly of the substation, so that it can be quickly put into operation, and can be deployed and moved according to engineering requirements, with strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural schematic diagram of a wind power substation according to an embodiment of the utility model;

[0021] Figure 2 A cross-sectional view of a wind power substation according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the support structure of an embodiment of the utility model;

[0023] Figure 4 It is a top view of the support structure of an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Substation body; 101. Ventilation net; 102. Support; 103. Door; 2. Top cover; 3. Refrigeration device; 4. Heat exchange chamber; 5. Heat exchanger; 6. Air inlet pipe; 7. Heat exchange plate; 71. First channel; 8. Air outlet pipe; 9. Support structure; 91. Retaining rib; 911. First drainage hole; 92. Boss; 921. First slope; 93. Limiting groove; 94. Water guide; 941. Second slope; 95. Second drainage hole; 10. Fan. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the following description of the utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The term "connection" only indicates the connection between devices and has no special meaning.

[0028] For specific embodiments, see Figure 1 and Figure 2A wind power box-type substation includes a substation body 1, a top cover 2 is arranged on the top of the substation body 1, and a support 102 is arranged at the bottom of the substation body 1; the support 102 makes the substation body 1 a certain height away from the ground, which has a good moisture-proof effect. A ventilation net 101 is arranged on one side of the substation body 1 to facilitate the entry of outside air into the box. A door body 103 is arranged on the substation body 1 to facilitate the operator to enter the pre-installed box-type substation for operation. The substation body 1 is also provided with high and low voltage distribution devices, transformers and other equipment. The structure and connection relationship of the above equipment are all existing technologies and will not be described in detail here.

[0029] A support structure 9 is provided in the substation body 1, and a vertically placed heat exchange plate 7 is provided on the support structure 9. The inlet end of the heat exchange plate 7 is connected to the ventilation network 101, and a fan 10 is provided at the outlet end of the heat exchange plate 7 to discharge the heat exchanged gas to the outside. Preferably, the heat exchange plate 7 is made of metal, which can improve the heat exchange efficiency between the inside and outside air.

[0030] As an example of the present utility model, a first channel 71 is provided in the heat exchange plate 7, the inlet end of the first channel 71 is connected to the air inlet pipe 6, and the outlet end of the first channel 71 is connected to the air outlet pipe 8. Preferably, the air inlet pipe 6 is arranged to be tilted downward at one end close to the first channel 71. This arrangement allows the formed condensed water to flow along the air inlet pipe 6 to the outer wall surface of the metal heat exchange plate 7, and finally be discharged to the outside through the support structure 9, thereby reducing the air humidity in the main body 1 of the substation to achieve a moisture-proof effect. Preferably, the air outlet pipe 8 is arranged at an angle, which can guide the condensed water formed on the outer wall surface of the air outlet pipe 8 to avoid direct dripping and affecting the operating safety of the electrical parts. The specific shape of the first channel 71 can be set to a straight line, a zigzag line, etc. as needed. Preferably, the shape of the first channel 71 is a zigzag line, which can increase the heat exchange area with the gas in the heat exchanger 5 and has a good heat dissipation effect.

[0031] Preferably, a heat exchange chamber 4 is provided in the substation body 1, a refrigeration device 3 is provided outside the substation body 1, a heat exchanger 5 is provided in the heat exchange chamber 4, the heat exchanger 5 is connected to the refrigeration device 3 through a refrigerant pipeline, one side of the heat exchange chamber 4 is connected to the ventilation network 101, and the other side of the heat exchange chamber 4 is connected to the air intake pipe 6. This arrangement can cool down the gas entering the substation body 1 through the heat exchanger 5, improve the heat exchange efficiency of the gas in the substation body 1, and have a good heat dissipation effect. The refrigeration device 3 includes a compressor, a four-way valve, a gas separator, an oil separator, etc., and its specific structure is the prior art and will not be described in detail here.

[0032] Preferably, an insulation layer is provided around the heat exchange chamber 4 and the air inlet pipe 6. This arrangement can effectively prevent condensation from being generated on the outer wall of the heat exchange chamber 4, thereby improving the operational stability of the substation body 1. The specific structure of the insulation layer is prior art and will not be described in detail here. Preferably, the bottom of the heat exchange chamber 4 is inclined, and the air inlet pipe 6 is provided at the lowest point of the heat exchange chamber 4. Even if condensation is generated, it can be diverted along the air inlet pipe 6 to the support structure 9 for discharge.

[0033] like Figure 3 and Figure 4 As shown, the support structure 9 includes a retaining rib 91, and a limiting groove 93 is arranged on the periphery of the retaining rib 91. The retaining rib 91 abuts against the inner wall surface of the heat exchange plate 7, and the heat exchange plate 7 is limitedly assembled into the limiting groove 93. This arrangement can improve the tightness and convenience of assembly between the support structure 9 and the heat exchange plate 7. Preferably, the support structure 9 also includes a water guide structure, and the water guide structure is located on at least one side of the heat exchange plate 7. The cold air entering the heat exchange plate 7 absorbs the heat generated by the operation of the equipment in the substation body 1 and is discharged to the outside to achieve the heat dissipation effect. At the same time, condensed water is generated after condensation to achieve moisture-proof. However, if the condensed water flows freely, it is easy to cause safety hazards to the operation of electrical parts. The condensed water can be discharged outside the box through the water guide structure to avoid the formation of a high humidity environment again after the temperature rises. Preferably, the water guide structure is symmetrically arranged on both sides of the heat exchange plate 7. As an example of the present invention, the water guide structure includes a boss 92, and the boss 92 is provided with a first inclined surface 921 inclined along a first direction. Preferably, one end of the first inclined surface 921 close to the heat exchange plate 7 is lower than the other end. This setting can realize the rapid collection of condensed water and improve the drainage speed and drainage volume. Preferably, the water guide structure also includes a water guide part 94 arranged adjacent to the boss 92, one side of the water guide part 94 abuts against the heat exchange plate 7, and the water guide part 94 is provided with a second inclined surface 941 inclined along the second direction. Preferably, the second inclined surface 941 is inclined to the first direction, and one end of the second inclined surface 941 close to the second drainage hole 95 is lower than the other end. This setting can realize the rapid discharge of condensed water and further reduce the air humidity in the box.

[0034] Preferably, a second drain hole 95 is provided at one end of the support structure 9 to guide the condensed water out of the box, and a first drain hole 911 is provided at one end of the retaining rib 91, and the first drain hole 911 is provided higher than the second drain hole 95. The condensed water generated in the heat exchange chamber 4 enters the first channel 71 of the heat exchange plate 7 through the air inlet pipe 6 and is discharged through the first drain hole 911, thereby preventing the condensed water in the first channel 71 from corroding the heat exchange plate 7 and improving the service life of the equipment. This arrangement can avoid convection, block the gas in the first channel 71, and prevent the gas in the first channel 71 from being discharged to the outside through the first drain hole 911, thereby achieving good heat dissipation effect. Preferably, a sponge is provided in the first drain hole 911, which can further reduce the gas loss in the first channel 71 and improve the heat exchange efficiency.

[0035] During the operation of the substation, if the temperature in the main body 1 of the substation is high but the humidity is low, the refrigeration device 3 can be selectively turned off, and the external air entering from the ventilation network 101 is pumped to the first channel 71 through the air inlet pipe 6 by the fan 10, and is discharged after heat exchange with the high-temperature gas, thereby achieving a good heat dissipation effect; if the main body 1 of the substation is in a high temperature and high humidity environment, the refrigeration device 3 is started, and the external air enters the heat exchange chamber 4 for heat exchange and cooling, and then enters the first channel 71, and is discharged after heat exchange with the high temperature and high humidity gas in the box; the high temperature and high humidity gas is cooled to achieve a good heat dissipation effect, and the condensed water generated at the same time is quickly discharged along the outer wall of the heat exchange plate 7 through the water guide structure, avoiding the safety hazard of condensed water to the operation of electrical components; at the same time, it also prevents the condensed water from evaporating quickly after the temperature rises to form a high temperature and high humidity environment, thereby achieving good moisture-proof and heat dissipation effects.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind power box-type substation, characterized in that: The invention comprises a transformer substation body (1), wherein a heat exchange chamber (4) and a refrigeration device (3) are respectively arranged inside and outside the transformer substation body (1), a heat exchanger (5) is arranged inside the heat exchange chamber (4), and the heat exchanger (5) is connected to the refrigeration device (3) through a pipeline; a heat exchange plate (7) and a support structure (9) are also arranged inside the transformer substation body (1), wherein the heat exchange plate (7) is vertically arranged on the support structure (9), the inlet end of the heat exchange plate (7) is connected to the heat exchange chamber (4), and a fan (10) is arranged at the outlet end of the heat exchange plate (7) for discharging the gas after heat exchange.

2. A wind power box-type substation according to claim 1, characterized in that: A first channel (71) is arranged in the heat exchange plate (7), an air intake pipe (6) is arranged between the first channel (71) and the heat exchange cavity (4), and the air intake pipe (6) is arranged to be inclined downward at one end close to the first channel (71).

3. A wind power box-type substation according to claim 1 or 2, characterized in that: The support structure (9) comprises a retaining rib (91), a limiting groove (93) is arranged on the periphery of the retaining rib (91), the retaining rib (91) abuts against the inner wall surface of the heat exchange plate (7), and the heat exchange plate (7) is limitedly assembled in the limiting groove (93).

4. A wind power box-type substation according to claim 3, characterized in that: The supporting structure (9) further comprises a water guiding structure, wherein the water guiding structure is located on at least one side of the heat exchange plate (7).

5. A wind power box-type substation according to claim 4, characterized in that: The water-conducting structure comprises a boss (92), the boss (92) being provided with a first inclined surface (921) extending along a first direction, and the first inclined surface (921) being provided with a side close to the heat exchange plate (7) lower than the other side.

6. A wind power box-type substation according to claim 5, characterized in that: The water guiding structure further comprises a water guiding portion (94) arranged adjacent to the boss (92), one side of the water guiding portion (94) abuts against the heat exchange plate (7), and the water guiding portion (94) is provided with a second inclined surface (941) extending along a second direction.

7. A wind power box-type substation according to claim 6, characterized in that: A second drainage hole (95) is provided at one end of the support structure (9), and a first drainage hole (911) is provided at one end of the retaining rib (91) close to the second drainage hole (95), wherein the first drainage hole (911) is arranged higher than the second drainage hole (95).

8. A wind power box-type substation according to claim 1, characterized in that: A top cover (2) is arranged on the top of the substation body (1), and a plurality of supports (102) are arranged on the bottom of the substation body (1).

9. A wind power box-type substation according to claim 1, characterized in that: A ventilation net (101) is provided on one side of the transformer substation body (1), and the ventilation net (101) is located on the side of the heat exchange cavity (4).

10. A wind power box-type substation according to claim 9, characterized in that: A door body (103) is arranged on the other side of the substation body (1).

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