Heat supply network frequency conversion cabinet

Abstract

The utility model discloses a heat supply network frequency conversion cabinet which comprises a protective shell, a frequency converter is fixedly installed on the surface of a supporting frame, a cooling fin is fixedly connected to the surface of one side of the frequency converter, a transmission motor is fixedly installed on the surface of one side of the protective shell, a movable plate is in threaded connection with the surface of a threaded transmission rod, and a dehumidification box is fixedly connected to the upper portion of the movable plate. A drying groove is formed in one side of the dehumidification box, the cooling fins are matched with the drying groove, dehumidification holes are formed in the surface of the dehumidification box, and a dehumidification pipe is fixedly installed on one side of the dehumidification box. The beneficial effects of the utility model are that after the desiccant is added into the dehumidification box, the interior of the sealed protective housing is subjected to water absorption and moisture prevention by the dehumidification box, and after the desiccant absorbs a certain amount of moisture, the drying groove at one side of the dehumidification box is matched with the cooling fins at one side of the frequency converter, so that the drying effect of the frequency converter is improved. And heat emitted by the frequency converter during working is used for drying the drying agent for recycling, so that continuous moisture prevention is performed in the frequency conversion cabinet.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of frequency conversion cabinet, specifically, relate to a heat supply network frequency conversion cabinet. BACKGROUND

[0002] The heat supply network frequency conversion cabinet is a control cabinet specially designed for heating systems, which integrates frequency converters and other necessary control elements. It is mainly used for precise speed control of circulating pumps, water supplement pumps or other related equipment in the heat supply network, to ensure the pressure, flow stability and energy efficiency of the entire heat supply network system.

[0003] With the continuous development and intelligent transformation of urban central heating systems, the heat supply network frequency conversion cabinet, as a key device for regulating heat source output and optimizing energy distribution, plays a crucial role in modern heating networks. However, due to its variable working environment, especially when operating in high humidity environments, the electrical components inside the cabinet are prone to moisture, leading to insulation performance degradation, metal component corrosion, circuit board short circuit and other problems, which seriously affect the working stability and service life of the frequency converter. The heat supply network frequency conversion cabinets on the market generally lack effective built-in dehumidification and moisture-proof measures, especially in rainy seasons, high humidity areas or conditions where condensate water is generated in the heating system, the humidity inside the cabinet is difficult to control effectively. In view of the problems in the related art, no effective solution has been proposed so far. Therefore, it is necessary to propose a heat supply network frequency conversion cabinet to solve the problems mentioned above. SUMMARY

[0004] In view of the problems in the related art, the utility model provides a heat supply network frequency conversion cabinet to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the following specific technical solutions:

[0006] A heat supply network frequency conversion cabinet, comprising a protective shell, the inner wall of the protective shell is fixedly connected with support frames on both sides, a frequency converter is fixedly installed on the surface of the support frame, a heat sink is fixedly connected to the surface of one side of the frequency converter, a transmission motor is fixedly installed on one side surface of the protective shell, a threaded transmission rod is fixedly connected to the transmission shaft of the transmission motor, a moving plate is threadedly connected to the surface of the threaded transmission rod, a dehumidification box is fixedly connected above the moving plate, limit grooves are opened on both sides of the inner wall of the protective shell, limit rods are fixedly connected to the outer surface of the dehumidification box on both sides, the limit rods are slidingly installed in the limit grooves, a drying groove is opened on one side of the dehumidification box, the heat sink cooperates with the drying groove, dehumidification holes are opened on the surface of the dehumidification box, a discharge pipe is fixedly installed on one side of the protective shell, a dehumidification pipe is fixedly installed on one side of the dehumidification box, and a humidity sensor is fixedly installed on one side of the inner wall of the protective shell.

[0007] Further, in order to realize the opening of the protective shell for the maintenance of the internal elements, the side of the protective shell is rotatably installed with a rotating shaft, the surface of the rotating shaft is fixedly connected with a sealing door, the surface of the sealing door is fixedly installed with a handle, the sealing door on the rotating shaft is rotated by pulling the handle, and the side of the protective shell is opened.

[0008] Further, in order to realize the automatic sealing of one end of the exhaust pipe, one end of the exhaust pipe is fixedly installed with a limiting ring, one side surface of the limiting ring is fixedly connected with a return spring, one end of the return spring is fixedly connected with a closing plate, and the center of the limiting ring at one end of the exhaust pipe is sealed by pulling the closing plate through the return spring.

[0009] Further, in order to realize that the dehumidification box sends moisture to the exhaust pipe through the moisture discharge pipe, the moisture discharge pipe is matched with the inner diameter of the limiting ring, the tail end of the moisture discharge pipe is fixedly connected with a pushing rod, and the closing plate and the return spring are moved to the inside of the exhaust pipe by the pushing rod after the tail end of the moisture discharge pipe is inserted into the limiting ring, so that the closing plate does not seal one end of the exhaust pipe.

[0010] Further, in order to realize the addition of the desiccant to the inside of the dehumidification box, the surface of the dehumidification box is fixedly installed with a feeding pipe, the top end of the feeding pipe is slidably installed with a sealing cover, and the desiccant is added to the inside of the dehumidification box through the feeding pipe after the sealing cover is opened.

[0011] Further, in order to realize the addition of the desiccant to the inside of the dehumidification box, the surface of the dehumidification box is fixedly installed with a feeding pipe, the top end of the feeding pipe is slidably installed with a sealing cover, and the desiccant is added to the inside of the dehumidification box through the feeding pipe after the sealing cover is opened.

[0012] Further, in order to realize the control of the humidity sensor and the transmission motor, the side of the protective shell is fixedly installed with a plc controller, and the signal value detected by the humidity sensor is processed through the plc controller, so that the transmission motor is controlled to be started.

[0013] The beneficial effects of the utility model are: after adding the reusable desiccant into the dehumidification box, the moisture in the sealed protective shell is absorbed, when the desiccant in the dehumidification box absorbs a certain amount of moisture, the transmission motor drives the threaded transmission rod to rotate, the moving plate drives the dehumidification box to move, the drying groove on one side of the dehumidification box cooperates with the heat dissipation fin on one side of the frequency converter, so that the heat continuously generated when the frequency converter works is used for drying the desiccant in the dehumidification box, the dried desiccant can repeatedly absorb the moisture in the air in the protective shell, so that the dryness in the frequency conversion cabinet is continuously maintained, and the electrical elements in the cabinet are dehumidified and protected. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Fig. 1 is a surface structure schematic diagram of a heat network frequency conversion cabinet according to an embodiment of the present application;

[0016] Fig. 2 is an internal structure schematic diagram of a heat network frequency conversion cabinet according to an embodiment of the present application;

[0017] Fig. 3 is a back view of a protective shell in a heat network frequency conversion cabinet according to an embodiment of the present application;

[0018] Fig. 4 is a back cross-sectional schematic diagram of a heat network frequency conversion cabinet according to an embodiment of the present application;

[0019] Fig. 5 is a matching installation structure schematic diagram of a heat sink and a drying groove in a heat network frequency conversion cabinet according to an embodiment of the present application.

[0020] Fig. 6 is a connection cross-sectional structure schematic diagram of a discharge pipe and a dehumidification pipe in a heat network frequency conversion cabinet according to an embodiment of the present application.

[0021] In the drawings:

[0022] 1, protective shell; 2, support frame; 3, frequency converter; 4, heat sink; 5, transmission motor; 6, threaded transmission rod; 7, moving plate; 8, dehumidification box; 9, limiting groove; 10, limiting rod; 11, drying groove; 12, dehumidification hole; 13, discharge pipe; 14, dehumidification pipe; 15, rotating shaft; 16, sealing door; 17, handle; 18, limiting ring; 19, return spring; 20, closing plate; 21, pushing rod; 22, feeding pipe; 23, sealing cover; 24, feeding port; 25, feeding door; 26, PLC controller; 27, humidity sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figs. 1-4 The utility model provides a technical scheme: a heat supply network frequency conversion cabinet, including metal rectangle's protective housing 1, the inner wall of protective housing 1 upper and lower sides is fixedly connected with a pair of support frame 2, the surface of support frame 2 is fixedly installed with frequency converter 3, is used for the accurate speed control of circulating pump, water supply pump or other related equipment in heat supply network, the surface of frequency converter 3 is fixedly connected with fin 4 on one side, is used for the heat generated by frequency converter 3 work transmission heat dissipation, the inside one side surface of protective housing 1 is fixedly installed with reversible transmission motor 5, the transmission shaft of transmission motor 5 is fixedly connected with threaded transmission rod 6, the surface of threaded transmission rod 6 is screw connected with moving plate 7, the upper of moving plate 7 is fixedly connected with dehumidification box 8, is used for placing drying agent in the inside, the inner wall both sides of protective housing 1 are opened with limit groove 9, the both sides of the outer surface of dehumidification box 8 are fixedly connected with limit rod 10, limit rod 10 is slidably installed in limit groove 9, by transmission motor 5 drive threaded transmission rod 6 rotation, make the surface screw connection of threaded transmission rod 6 moving plate 7, drive the dehumidification box 8 of upper in protective housing 1 moves, one side of dehumidification box 8 is opened with drying groove 11, fin 4 is matched with drying groove 11, the surface of dehumidification box 8 is opened with dehumidification hole 12, when dehumidification box 8 moves, the surface drying groove 11 and fin 4 are mutually matched when, by the heat of frequency converter 3 work after emitting dry agent in dehumidification box 8 and carry out drying treatment, one side of protective housing 1 is fixedly installed with discharge pipe 13, one side of dehumidification box 8 is fixedly installed with wet pipe 14, by discharge pipe 13 and wet pipe 14 the moisture of drying agent drying produces and exports protective housing 1, the inner wall one side of protective housing 1 is fixedly installed with humidity transducer 27, is used for the real-time monitoring of humidity in protective housing 1.

[0025] Please refer to Figs. 1-4The side of the protective shell 1 is rotatably installed with a rotating shaft 15, the surface of the rotating shaft 15 is fixedly connected with a sealing door 16, which is used for closing and opening the protective shell 1; the surface of the sealing door 16 is fixedly installed with a handle 17, which is used for conveniently pulling the sealing door 16 to rotate; the one end of the exhaust pipe 13 is fixedly installed with a limiting ring 18 in the protective shell 1, the surface of the one side of the limiting ring 18 is fixedly connected with a return spring 19, the one end of the return spring 19 is fixedly connected with a closing plate 20, the diameter of the closing plate 20 is smaller than the diameter of the exhaust pipe 13, but larger than the diameter of the center hole of the limiting ring 18, the closing plate 20 is pulled to tightly adhere to the limiting ring 18 through the return spring 19, which is used for automatically closing the one end of the exhaust pipe 13; the inner diameter of the limiting ring 18 is matched with the exhaust pipe 14, the tail end of the exhaust pipe 14 is fixedly connected with a pushing rod 21, when the tail end of the exhaust pipe 14 is matched to be inserted into the inside of the exhaust pipe 13, the pushing rod 21 of the tail end of the exhaust pipe 14 pushes the closing plate 20 to move to the inside of the exhaust pipe 13, so as to release the closing of the tail end of the exhaust pipe 13 by the closing plate 20; the surface of the one side of the dehumidification box 8 is fixedly installed with a feeding pipe 22, which is used for adding the drying agent in the dehumidification box 8; the top end of the feeding pipe 22 is slidably installed with a sealing cover 23, which is used for closing the top end of the feeding pipe 22; the surface of the one side of the protective shell 1 is opened with a feeding port 24, the one side of the feeding port 24 is rotatably installed with a feeding door 25, by opening the feeding door 25, it is used for conveniently feeding in the dehumidification box 8 from the outside of the protective shell 1; the one side of the protective shell 1 is fixedly installed with a plc controller 26, the plc controller 26 is electrically connected with the humidity sensor 27 and the transmission motor 5 through wires, which is used for receiving the monitoring signal of the humidity sensor 27, and controlling the transmission motor 5 to start and close.

[0026] With the above technical scheme of the utility model, after setting a standard value of humidity in the protective shell 1 through the PLC controller 26, the silica gel desiccant is put into the dehumidification box 8 by opening the loading door 25 and the sealing cover 23, the sealing cover 23, the loading door 25 and the sealing door 16 are closed to seal the inside of the protective shell 1, the outside humidity is prevented from entering the protective shell 1, the silica gel desiccant in the dehumidification box 8 continuously absorbs the moisture in the protective shell 1, when the humidity sensor 27 detects that the humidity in the protective shell 1 is lower than the standard value, the PLC controller 26 starts the positive rotation of the transmission motor 5, the transmission motor 5 drives the threaded transmission rod 6 to rotate, the threaded transmission rod 6 is slidably installed in the limiting groove 9 through the threaded connection with the surface moving plate 7 and the dehumidification box 8, the moving plate 7 drives the dehumidification box 8 to move to the side of the frequency converter 3, the drying groove 11 on one side of the dehumidification box 8 cooperates with the heat dissipation fin 4 on one side of the frequency converter 3, after moving, the dehumidification box 8 is installed in the discharge pipe 13 on one side of the protective shell 1 through the discharge pipe 14 on one side of the dehumidification box 8, when the end of the discharge pipe 14 is inserted into the inside of the discharge pipe 13, the push rod 21 at the end of the discharge pipe 14 pushes the sealing plate 20 to move to the inside of the discharge pipe 13, so that the sealing of the end of the discharge pipe 13 by the sealing plate 20 is released, the drying agent in the dehumidification box 8 is dried through the heat generated by the frequency converter 3 and the dehumidification hole 12 on the surface of the dehumidification box 8, the humidity generated during drying is discharged to the outside of the protective shell 1 through the discharge pipe 14 and the discharge pipe 13; when the humidity sensor 27 detects that the humidity in the protective shell 1 is higher than the standard value, the PLC controller 26 controls the transmission motor 5 to rotate reversely, the dehumidification box 8 is moved to make the drying groove 11 separate from the heat dissipation fin 4, the silica gel desiccant in the dehumidification box 8 after drying continues to absorb the moisture in the protective shell 1 through the dehumidification hole 12, so that the dryness of the inside of the protective shell 1 is continuously maintained.

[0027] The above merely describes preferred embodiments of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat network frequency conversion cabinet, characterized in that, The utility model provides a kind of dehumidification device, including protective shell (1), the inner wall both sides of protective shell (1) are fixedly connected with support frame (2), the surface of support frame (2) is fixedly installed with frequency converter (3), the surface of frequency converter (3) one side is fixedly connected with fin (4), the surface one side of protective shell (1) is fixedly installed with transmission motor (5), the transmission shaft of transmission motor (5) is fixedly connected with threaded transmission rod (6), the surface of threaded transmission rod (6) is threadedly connected with moving plate (7), the upper of moving plate (7) is fixedly connected with dehumidification box (8), the inner wall both sides of protective shell (1) are opened with limit slot (9), the outer surface both sides of dehumidification box (8) are fixedly connected with limit rod (10), limit rod (10) is slidably installed in limit slot (9), the side of dehumidification box (8) is opened with drying groove (11), fin (4) cooperates with drying groove (11), the surface of dehumidification box (8) is opened with dehumidification hole (12), the side of protective shell (1) is fixedly installed with exhaust pipe (13), the side of dehumidification box (8) is fixedly installed with damp pipe (14), the inner wall one side of protective shell (1) is fixedly installed with humidity sensor (27).

2. The frequency conversion cabinet for heating network according to claim 1, characterized in that, The side of protective shell (1) is rotatably installed with rotating shaft (15), the surface of rotating shaft (15) is fixedly connected with sealing door (16), the surface of sealing door (16) is fixedly installed with handle (17).

3. The frequency conversion cabinet for heating network according to claim 1, characterized in that, One end of exhaust pipe (13) is fixedly installed with limit ring (18), the surface one side of limit ring (18) is fixedly connected with return spring (19), the one end of return spring (19) is fixedly connected with closing plate (20).

4. The frequency conversion cabinet for heating network according to claim 3, characterized in that, Damp pipe (14) cooperates with the inner diameter of limit ring (18), the end of damp pipe (14) is fixedly connected with push rod (21).

5. The frequency conversion cabinet for heating networks according to claim 1, characterized in that, The surface one side of dehumidification box (8) is fixedly installed with feed pipe (22), the top of feed pipe (22) is slidably installed with sealing cover (23).

6. The frequency conversion cabinet for heating networks according to claim 1, characterized in that, The surface of protective shell (1) is opened with feeding port (24), the side of feeding port (24) is rotatably installed with feeding door (25).

7. The frequency conversion cabinet for heating networks according to claim 1, characterized in that, The side of protective shell (1) is fixedly installed with plc controller (26).

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