CN104577771A - Constant-temperature constant-humidity control crucible for intelligent substations - Google Patents

Abstract

The invention discloses an intelligent substation constant temperature and humidity integrated control cabinet, comprising a cabinet body, the cabinet body including a first side wall, a second side wall, a top plate, a bottom plate, a front door and a back panel; the first side wall , the second side wall, the top board, the bottom board, the front door and the back board form a cuboid space; an equipment installation board is arranged in the cabinet; the equipment installation board is sequentially provided with voltage electroscopes, combined Unit, line protection device, intelligent terminal and server; a precision air conditioner is embedded in the middle of the first side wall, and an electric cabinet condensation dehumidification device is installed in the lower part of the second side wall. The intelligent substation constant temperature and humidity central control cabinet invented has the advantages of ensuring the preset constant temperature and humidity in the central control cabinet, ensuring the safe and stable operation of the equipment in the central control cabinet, and improving the safety and reliability of the central control cabinet. .

Description

Intelligent substation constant temperature and humidity control cabinet

technical field

The invention relates to an intelligent substation constant temperature and humidity control cabinet.

Background technique

With the development of the national economy, science and technology, and power automation, in order to improve the reliability of power supply, save land resources, and personnel costs, the State Grid and China Southern Power Grid are planning to build pilot intelligent substations. According to the planning and construction requirements of the intelligent substation, the primary equipment needs to realize local data collection and control. In this way, a large number of measurement and control equipment, merging units, line protection, intelligent terminals, communication, video and other equipment originally installed in the substation control room were moved to the primary equipment site. The new intelligent substation equipment uses a large number of advanced technologies such as network and optics. It has high precision, small size and perfect functions. Therefore, the requirements for the operating environment are getting higher and higher. Compared with the constant temperature and humidity environment of the control room, the primary equipment site is easily affected by the weather, substation environment and seasonal factors. It is hot in summer, cold in winter, and the humidity is high in the rainy season, which affects the safe and stable operation of the equipment in the local control cabinet. pose a serious safety hazard. At present, there have been accidents such as data interruption and equipment damage in the equipment in the control cabinet of several intelligent substations. At present, conventional HSBC cabinets can no longer meet the development needs of smart grids.

Contents of the invention

In order to avoid the shortcomings in the above-mentioned prior art, the present invention provides an intelligent substation constant temperature and humidity central control cabinet to ensure that the preset constant temperature and humidity are maintained in the central control cabinet, and that the equipment in the central control cabinet Safe and stable operation.

The present invention adopts the following technical solutions to solve the technical problems.

The intelligent substation constant temperature and humidity integrated control cabinet has the following structural characteristics: it includes a cabinet body, and the cabinet body includes a first side wall, a second side wall, a top plate, a bottom plate, a front door and a back panel; the first side wall, The second side wall, the top plate, the bottom plate, the front door and the back panel enclose a cabinet space; an equipment installation board is arranged in the cabinet space of the cabinet body; the equipment installation board is sequentially provided with voltage Electroscope, merging unit, line protection device, intelligent terminal and server; a precision air conditioner for adjusting the temperature of the space inside the cabinet and an electric cabinet condensation dehumidification for dehumidifying the space inside the cabinet are embedded in the cabinet device.

The structural features of the intelligent substation constant temperature and humidity control cabinet of the present invention also lie in:

The precision air conditioner includes an external unit located outside the cabinet and an internal unit located inside the cabinet; the external unit includes a dry filter, a condenser, a condenser fan and a compressor; The unit in the cabinet includes a capillary tube, an evaporator, an evaporator fan and an electrical control system for controlling a precision air conditioner; one end of the dry filter is connected to the capillary tube of the unit in the cabinet, and the dry filter The other end is connected to the condenser and the compressor in turn; one end of the compressor is connected to the condenser, the other end of the compressor is connected to the evaporator of the unit in the cabinet, and the evaporator is also connected to the capillary The condenser fan is arranged on a side of the condenser close to the first side wall; the evaporator fan is arranged on a side of the evaporator close to the first side wall.

The precision air conditioner includes an external unit located outside the cabinet and an internal unit located inside the cabinet; the external unit includes a dry filter, a condenser, a condenser fan and a compressor; The unit in the cabinet includes an expansion valve, an evaporator, an evaporator fan, and an electrical control system for controlling a precision air conditioner; one end of the dry filter is connected to the expansion valve of the unit in the cabinet, and the dry filter The other end of the compressor is connected to the condenser and the compressor in turn; one end of the compressor is connected to the condenser, the other end of the compressor is connected to the evaporator of the unit in the cabinet, and the evaporator is also connected to the expansion valve is connected.

The electric cabinet condensation dehumidification device includes a shell, a temperature acquisition controller, a DC power supply, and a semiconductor condenser; the temperature acquisition controller, a DC power supply, and a semiconductor condenser are all arranged in the shell; the semiconductor condenser There is an exhaust fan on each side of the device.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

The intelligent substation constant temperature and humidity control cabinet of the present invention includes a cabinet body, and the cabinet body includes a first side wall, a second side wall, a top plate, a bottom plate, a front door and a back panel; the first side wall, the second The side wall, the top plate, the bottom plate, the front door and the back panel form a cabinet space; an equipment installation board is arranged in the cabinet space of the cabinet body; the equipment installation board is sequentially provided with voltage electroscopes from top to bottom , merging unit, line protection device, intelligent terminal and server; a precision air conditioner is embedded in the middle of the first side wall, and an electric cabinet condensation dehumidification device is installed in the lower part of the second side wall. The precision air conditioner is an air conditioning cycle system mainly composed of condensers, compressors, evaporators, capillary tubes or expansion valves, dry filters and other equipment connected in sequence. The condensation and dehumidification device of the electric cabinet includes a shell, a temperature acquisition controller, a DC working power supply, and a semiconductor condenser.

In specific operation, the precision air conditioner and condensing dehumidification device can be installed on the front or on the side, and the installation position is flexible. The precision air conditioner can be protruding or embedded. According to the actual survey of the work site, the actual required cooling power and dehumidification power can be calculated, so as to select the appropriate precision air conditioner and condensing dehumidification device, and completely solve the direct and indirect problems caused by the high temperature and high humidity of the customer.

The intelligent substation constant temperature and humidity central control cabinet of the present invention has the functions of ensuring that the preset constant temperature and humidity are maintained in the central control cabinet, ensuring the safe and stable operation of the equipment in the central control cabinet, improving the operation safety and reliability of the central control cabinet, etc. advantage.

Description of drawings

Fig. 1 is a front view (front view without the front door) of an embodiment of an intelligent substation constant temperature and humidity control cabinet of the present invention.

Fig. 2 is a left view of the constant temperature and humidity control cabinet of the intelligent substation shown in Fig. 1 .

Fig. 3 is a working principle diagram of the precision air conditioner of the intelligent substation constant temperature and humidity control cabinet of the present invention.

Fig. 4 is a structural schematic diagram of the electric cabinet condensation dehumidification device of the intelligent substation constant temperature and humidity integrated control cabinet according to the present invention.

Numbers in attached drawings 1 to 4: 1 first side wall, 2 second side wall, 3 top board, 4 bottom board, 5 front door, 6 back board, 7 voltage electroscope, 8 merging unit, 9 line protection device, 10 Intelligent terminal, 11 server, 12 precision air conditioner, 13 electric cabinet condensation dehumidification device, 131 shell, 132 temperature acquisition controller, 133 DC power supply, 134 semiconductor condenser, 135 exhaust fan, 14 external unit, 141 drying filter, 142 condenser, 143 compressor, 144 condenser fan, 15 cabinet unit, 151 capillary tube, 152 evaporator, 153 evaporator fan, 154 electrical control system, 16 equipment mounting plate.

The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

Detailed ways

Referring to Figures 1 to 4, the intelligent substation constant temperature and humidity centralized control cabinet of the present invention includes a cabinet body, and the cabinet body includes a first side wall 1, a second side wall 2, a top plate 3, a bottom plate 4, a front door 5 and The back panel 6; the first side wall 1, the second side wall 2, the top plate 3, the bottom plate 4, the front door 5 and the back panel 6 enclose a cabinet space; a cabinet space is provided in the cabinet space The equipment installation board 16; the equipment installation board 16 is provided with a voltage electroscope 7, a merging unit 8, a line protection device 9, an intelligent terminal 10 and a server 11 in sequence from top to bottom; A precision air conditioner 12 for adjusting the temperature of the cabinet interior space and an electric cabinet condensation dehumidification device 13 for dehumidifying the cabinet interior space. As shown in Figure 1-2, the cabinet body is in the shape of a cuboid, and the first side wall, the second side wall, the top board, the bottom board, the front door and the back board constitute the six sides of the cabinet body. A precision air conditioner is embedded in the middle of the first side wall, and an electric cabinet condensing and dehumidifying device is installed in the lower part of the second side wall.

The precision air conditioner 12 includes an external unit 14 positioned outside the cabinet and an internal unit 15 positioned within the cabinet; the external unit 14 includes a dry filter 141, a condenser 142, a condenser Air blower fan 144 and compressor 143; The unit 15 in the cabinet includes a capillary tube 151, an evaporator 152, an evaporator fan 153 and an electrical control system 154 for controlling the precision air conditioner 12; One end of the dry filter 141 is connected to the The capillary 151 of the unit 15 in the cabinet is connected, and the other end of the dry filter 141 is connected to the condenser 142 and the compressor 143 in turn; one end of the compressor 143 is connected to the condenser 142, and the compressor The other end of 143 is connected to the evaporator 152 of the unit 15 in the cabinet, and the evaporator 152 is also connected to the capillary 151; the condenser fan 144 is arranged on the first side wall 1 of the condenser 142 The side of the evaporator fan 153 is arranged on the side of the evaporator close to the first side wall 1 .

The precision air conditioner 12 includes an external unit 14 positioned outside the cabinet and an internal unit 15 positioned within the cabinet; the external unit 14 includes a dry filter 141, a condenser 142, a condenser Fan 144 and compressor 143; the cabinet unit 15 includes an expansion valve, an evaporator 152, an evaporator fan 153 and an electrical control system 154 for controlling the precision air conditioner 12; one end of the dry filter 141 is connected to the The expansion valve of the unit 15 in the cabinet is connected, and the other end of the dry filter 141 is connected to the condenser 142 and the compressor 143 in turn; one end of the compressor 143 is connected to the condenser 142, and the compressor The other end of 143 is connected to the evaporator 152 of the unit in the cabinet 15, and the evaporator 152 is also connected to the expansion valve.

As shown in Figure 3, a precision air conditioner is an air conditioning cycle system mainly composed of condensers, compressors, evaporators, capillary tubes or expansion valves, dry filters and other equipment connected in sequence. In said Fig. 3, the solid line arrows represent the circulating air outside the control cabinet, and the dotted line arrows represent the circulating air inside the control cabinet.

The precision air conditioner realizes heat-absorbing refrigeration through compression refrigeration, and transfers the heat emitted by the equipment in the cabinet to the outside of the cabinet in the closed environment of the cabinet. Dirty gases such as high temperature and dust outside the HSBC cabinet will not enter the HSBC cabinet, thus solving a series of problems caused by fan heat dissipation. The interior of the electric cabinet can always maintain an ideal temperature environment of about 30°C, so that the stability of primary equipment such as voltage detectors, merging units, line protection devices, intelligent terminals and servers in the HSBC cabinet is effectively guaranteed.

The characteristics of the precision air conditioner are: (1) Widely used in HSBC cabinets, GIS intelligent control panels, terminal boxes and other occasions that require heat dissipation; (2) Internal and external circulation IP55 protection level, dustproof and waterproof; (3) Adopt R134A system; (4) suitable for high temperature 55°C working conditions; (5) digital temperature controller with high temperature control accuracy.

As shown in Figure 4, described electric cabinet condensing dehumidification device 13 comprises shell 131, temperature collection controller 132, DC working power supply 133, semiconductor condenser 134; Described temperature collecting controller 132, DC working power supply 133, semiconductor condenser 134 are all arranged inside the shell 131; an exhaust fan 135 is arranged on both sides of the semiconductor condenser 134 respectively.

Described cabinet body is cuboid shape, and first side wall, second side wall, top plate, bottom plate, front door and back panel constitute six faces of cabinet body, first side wall, second side wall, top board, bottom plate, front door and The back panels are all stainless steel.

As shown in FIG. 4 , the dehumidification device includes a housing, in which a temperature acquisition controller 132 , a DC power supply 133 , and a semiconductor condenser 134 are arranged; two exhaust fans are arranged on both sides of the semiconductor condenser. The housing is provided with an air inlet and an air outlet, and two exhaust fans are respectively corresponding to the air inlet and the air outlet, so that the air inside and outside the housing can circulate. A condensate drainage device is also set in the shell to drain the condensed liquid water out of the control cabinet, so as to ensure that the humidity level in the control cabinet is maintained at an appropriate level; once the humidity exceeds the predetermined value, the dehumidification device is activated for dehumidification.

In specific operation, the precision air conditioner and condensing dehumidification device can be installed on the front or on the side, and the installation position is flexible. The precision air conditioner can be protruding or embedded. According to the actual survey of the work site, the actual required cooling power and dehumidification power can be calculated, so as to select the appropriate precision air conditioner and condensing dehumidification device, and completely solve the direct and indirect problems caused by the high temperature and high humidity of the customer.

The intelligent substation constant temperature and humidity central control cabinet of the present invention has the functions of ensuring that the preset constant temperature and humidity are maintained in the central control cabinet, ensuring the safe and stable operation of the equipment in the central control cabinet, improving the operation safety and reliability of the central control cabinet, etc. advantage.

The above-mentioned embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Under the premise of not departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention, and the technical content claimed in the present invention has been fully described in the claims.

Claims (4)

1. Intelligent substation constant temperature and humidity integrated control cabinet, characterized in that it includes a cabinet body, and the cabinet body includes a first side wall (1), a second side wall (2), a top plate (3), and a bottom plate (4) , front door (5) and back panel (6); described first side wall (1), second side wall (2), top plate (3), bottom plate (4), front door (5) and back panel (6) Enclosing a space in the cabinet; an equipment installation plate (16) is arranged in the space in the cabinet of the cabinet body; the equipment installation plate (16) is sequentially provided with voltage electroscopes (7), combined unit (8), line protection device (9), intelligent terminal (10) and server (11); a precision air conditioner (12) and a precision air conditioner (12) for adjusting the temperature of the space in the cabinet are embedded on the cabinet An electric cabinet condensation dehumidification device (13) for dehumidifying the space in the cabinet. 2. The intelligent substation constant temperature and humidity control cabinet according to claim 1, characterized in that, the precision air conditioner (12) includes an external unit (14) located outside the cabinet and a unit located outside the cabinet. The unit in the cabinet (15) in the cabinet; The unit outside the cabinet (14) includes a dry filter (141), a condenser (142), a condenser fan (144) and a compressor (143); the cabinet Inner unit (15) comprises capillary tube (151), evaporator (152), evaporator fan (153) and is used for controlling the electrical control system (154) of precision air conditioner (12); One end is connected with the capillary tube (151) of the unit (15) in the cabinet, and the other end of the dry filter (141) is connected with the condenser (142) and the compressor (143) in sequence; the compressor (143) One end of the compressor (143) is connected with the condenser (142), the other end of the compressor (143) is connected with the evaporator (152) of the cabinet unit (15), and the evaporator (152) is also connected with the capillary ( 151) are connected; the condenser fan (144) is arranged on the side of the condenser (142) close to the first side wall (1); the evaporator fan (153) is arranged on the evaporation The side of the device close to the first side wall (1). 3. The intelligent substation constant temperature and humidity control cabinet according to claim 1, characterized in that, the precision air conditioner (12) includes an external unit (14) located outside the cabinet and a unit located outside the cabinet The unit in the cabinet (15) in the cabinet; The unit outside the cabinet (14) includes a dry filter (141), a condenser (142), a condenser fan (144) and a compressor (143); the cabinet The inner unit (15) includes an expansion valve, an evaporator (152), an evaporator fan (153) and an electrical control system (154) for controlling the precision air conditioner (12); one end of the dry filter (141) is connected to The expansion valve of the unit (15) in the cabinet is connected, and the other end of the dry filter (141) is connected to the condenser (142) and the compressor (143) in turn; one end of the compressor (143) is connected to the The condenser (142) is connected, the other end of the compressor (143) is connected to the evaporator (152) of the cabinet unit (15), and the evaporator (152) is also connected to the expansion valve. 4. The intelligent substation constant temperature and humidity control cabinet according to claim 1, characterized in that, the electric cabinet condensation dehumidification device (13) includes a housing (131), a temperature acquisition controller (132), a DC working power supply (133), semiconductor condenser (134); described temperature acquisition controller (132), DC working power supply (133), semiconductor condenser (134) are all arranged in the described shell (131); An exhaust fan (135) is respectively arranged on both sides of the device (134).