An electrical cabinet for installing thermal control instruments in a power plant

Abstract

The present invention relates to the technical field of electrical cabinets, and discloses an electrical cabinet for installing thermal control instruments in a power plant, comprising an electrical cabinet and a condensation barrel fixedly installed on the upper end of the electrical cabinet. Under the cooperation of a first gas storage shell, a second gas storage shell, a piston, a connecting rod, a push rod, a connecting block and a multi-section U-shaped pipe, the multi-section U-shaped pipe moves upward close to the connecting block and tilts downward at one end away from the connecting block. At this time, the entire multi-section U-shaped pipe will tilt as a whole, increasing the contact area between the multi-section U-shaped pipe and the inside of the receiving electrical cabinet. At the same time, under the cooperation of the push rod, the sealing block, the sliding chamber, the water inlet pipe and the multi-section U-shaped pipe, after the condensed water in the multi-section U-shaped pipe is heat-exchanged with the temperature in the electrical cabinet, the cold condensed water can be injected into the multi-section U-shaped pipe in time, which can be further cooled. At the same time, the overall shape of the multi-section U-shaped pipe is changed, the contact area with the electrical cabinet is increased, and the cooling efficiency can be further accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinets, in particular to an electrical cabinet for installing thermal control instruments in a power plant. Background Art

[0002] A thermal power plant is a factory that uses combustibles as fuel to produce electricity. It mainly converts the chemical energy of the fuel into thermal energy by heating water to generate steam when the fuel is burned. The steam pressure drives the steam turbine to rotate, converting the thermal energy into mechanical energy. The steam turbine then drives the generator to rotate, converting the mechanical energy into electrical energy. In a thermal power plant, various thermal control electrical components such as relay equipment, circuit breakers, load switches, contactors, and measuring instruments are mostly installed in electrical cabinets.

[0003] For example, an electrical cabinet for installing thermal control instruments in a thermal power plant with publication number CN219760343U includes a cabinet body, and the inner walls on both sides of the inner cavity of the cabinet body are provided with a plurality of support plates distributed at equal intervals from top to bottom, and the support plates are provided with support seats detachably connected thereto, and the upper surface of the support seats is provided with a receiving groove, and the receiving groove is provided with a mounting plate for installing electrical equipment that is slidably connected thereto, and the bottom of the support seat and the top inner wall of the cabinet body are both provided with automatic fire extinguishing structures. This electrical cabinet for installing thermal control instruments in a thermal power plant facilitates the adjustment of the spacing between the upper and lower support seats through the provision of a plurality of support plates distributed at equal intervals up and down, thereby facilitating the flexible adjustment of the installation space according to the height of the electrical equipment, greatly improving the flexibility of the structure and having strong practicality.

[0004] In the above patent, the installation space is flexibly adjusted according to the height of the electrical equipment, which greatly improves the flexibility of the structure and is highly practical. However, the device is placed in a factory in a thermal power plant, and the temperature inside the factory is relatively high. The electrical cabinet is in operation for a long time and is ventilated through its own air holes. This method makes it difficult to cool down the temperature inside the electrical cabinet in a timely manner. Long-term use may cause damage to the components inside the electrical cabinet, and in severe cases, a fire may occur.

[0005] Therefore, we propose an electrical cabinet for installing thermal control instruments in power plants to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide an electrical cabinet for installing thermal control instruments in a power plant, so as to solve the problem that it is difficult to cool down the temperature inside the electrical cabinet in time, and long-term use may cause damage to components inside the electrical cabinet, and in serious cases, fire may occur.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising an electrical cabinet and a condensation barrel fixedly mounted on the upper end of the electrical cabinet, a back plate being arranged in the inner cavity of the electrical cabinet, a cooling component capable of cooling the inner cavity temperature of the electrical cabinet being arranged between the electrical cabinet and the condensation barrel, a cleaning component capable of cleaning dust from the inner cavity back plate of the electrical cabinet being arranged on the electrical cabinet, and a replacement component capable of performing hot-cold replacement of condensed water in the cooling component being arranged on the electrical cabinet; The cooling component comprises a plurality of U-shaped pipes arranged on the side wall of the inner cavity of the electrical cabinet, and two ends of the plurality of U-shaped pipes are respectively connected to the condensation barrel through a water inlet pipe and a water outlet pipe.

[0008] Preferably, the cooling component includes a first air storage shell fixedly mounted on a back plate and a connecting rod slidably mounted on the first air storage shell, a slideway is provided on the back plate, and a plurality of second air storage shells are slidably mounted on the back plate, and the second air storage shells are slidably mounted on the corresponding slideways. Pistons are slidably connected to the inside of the first air storage shell and the second air storage shell, the connecting rod on the first air storage shell is fixedly connected to the corresponding piston, the upper end of the connecting rod is fixedly connected to the corresponding second air storage shell, and inert gas is placed in the inner cavity of the first air storage shell and the second air storage shell. A push rod is slidably mounted on the second air storage shell, the push rod is fixedly connected to the corresponding piston, a connecting block is fixedly mounted on the side wall of the second air storage shell, the connecting block is fixedly connected to the bend on the multi-section U-shaped pipe, and the multi-section U-shaped pipe is rotatably mounted in the electrical cabinet through a limiting unit.

[0009] Preferably, a sliding chamber is provided in the condensing barrel, a sealing block is slidably arranged in the sliding chamber, one end of the sealing block is fixedly connected to the top rod, and the sliding chamber is connected to the inner cavity of the condensing barrel through a ventilation pipe.

[0010] Preferably, a plurality of the second gas storage shells are provided, and the plurality of the second gas storage shells are evenly distributed on the back plate.

[0011] Preferably, the limiting unit includes a connecting shaft rotatably arranged on the inner cavity side wall of the electrical cabinet and a U-shaped frame fixedly installed at one end of the connecting shaft, a baffle is fixedly installed on the axial side wall of the connecting shaft, and a blocking block is fixedly installed on the inner cavity side wall of the electrical cabinet, and the baffle is located at the upper end of the blocking block.

[0012] Preferably, the cleaning assembly includes a movable barrel fixedly mounted on the side wall of the second air storage shell and a pressing column slidably arranged on the movable barrel, a first spring is fixedly connected between the pressing column and the movable barrel, a limiting panel is fixedly mounted on one end of the pressing column, and a sponge is fixedly mounted on one end of the limiting panel.

[0013] Preferably, the sponge is in contact with the back plate, and the movable barrel is slidably arranged on a slideway.

[0014] Preferably, the replacement component includes an exchange tube connected to one end of the water outlet pipe, a pumping rod is slidably arranged on the exchange tube, both ends of the water outlet pipe and the ventilation pipe are provided with one-way valves, and a plurality of water outlet holes are opened at one end of the water outlet pipe located in the condensation barrel.

[0015] Preferably, the replacement component also includes a fixing rod fixedly mounted on one end of the limit panel and a limiting rod fixedly mounted on one end of the fixing rod, a triangular block is fixedly mounted on one end of the limiting rod, a trapezoidal block is fixedly mounted on one end of the pumping rod, an inclined surface of the triangular block is in contact with an inclined surface of the trapezoidal block, a movable path is opened on the side wall of the electrical cabinet, the fixing rod is slidably arranged on the movable path, and a sealing gasket is arranged on the movable path.

[0016] Preferably, a second spring is sleeved on the pumping rod, and two ends of the second spring are respectively fixedly connected to the side wall of the exchange tube and the axial side wall of the pumping rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Since the first air storage shell and the second air storage shell are distributed at multiple points, the two can quickly receive the heat of the internal temperature of the electrical cabinet. Since the parts where the electrical cabinet generates heat are uneven, the heat can be quickly collected through the arrangement of the position of the second air storage shell. With the cooperation of the first air storage shell, the second air storage shell, the piston, the connecting rod, the push rod, the connecting block and the multi-section U-shaped pipe, the multi-section U-shaped pipe moves upward close to the connecting block and tilts downward at the end away from the connecting block. At this time, the entire multi-section U-shaped pipe will tilt as a whole, increasing the contact area between the multi-section U-shaped pipe and the inside of the receiving electrical cabinet. At the same time, with the cooperation of the push rod, the sealing block, the sliding chamber, the water inlet pipe and the multi-section U-shaped pipe, after the condensed water in the multi-section U-shaped pipe exchanges heat with the temperature in the electrical cabinet, the cold condensed water can be injected into the multi-section U-shaped pipe in time, which can be further cooled. At the same time, the overall shape of the multi-section U-shaped pipe is changed, and the contact area with the electrical cabinet is increased, which can further accelerate the cooling efficiency.

[0018] 2. As the second air storage shell moves upward, it will drive the movable barrel to slide along the slide, and the movable barrel will drive the corresponding limit panel and sponge to slide. As the sponge continues to slide along the back plate, it can clean and absorb the dust on the back plate to prevent excessive dust accumulation and dust from drifting onto the corresponding components, thereby further ensuring the protection of the electrical cabinet components.

[0019] 3. During the upward movement of the limit panel, it also drives the fixed rod to slide along the movable path. At the same time, the fixed rod allows the triangular block to squeeze the trapezoidal block through the limiting rod. Since the inclined surfaces of the two are in contact, the triangular block moves upward and the trapezoidal block drives the pumping rod to slide along the exchange tube. At this time, the sliding of the pumping rod can generate negative pressure, and the condensed water in the multi-section U-shaped pipe enters the inner cavity of the outlet pipe through the one-way valve. At this time, the condensed water in the condensation barrel that has not undergone heat exchange enters the multi-section U-shaped pipe, and the condensed water that has undergone heat exchange enters the outlet pipe. When the temperature in the electrical cabinet drops, the pumping rod will return to its initial state. At this time, the water in the outlet pipe enters the condensation barrel through the one-way valve close to the condensation barrel, and the condensed water that has undergone heat exchange can be discharged into the condensation barrel again, so that the used condensed water can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the cooling component of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the electrical cabinet of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the partial structure of the cleaning component of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 For the present invention Figure 1 Enlarged view of point C in the middle; Figure 8 It is a schematic diagram of the local structure of the cooling component of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point D in the middle.

[0021] In the figure: 1, electrical cabinet; 2, condensation barrel; 3, cooling assembly; 31, multi-section U-shaped pipe; 32, first gas storage shell; 33, connecting rod; 34, second gas storage shell; 35, push rod; 36, connecting block; 37, piston; 38, limit unit; 381, connecting shaft; 382, ​​baffle; 383, blocking block; 384, U-shaped frame; 39, water inlet pipe; 301, water outlet pipe; 302, one-way valve; 303, water outlet hole ; 304, sealing block; 305, sliding chamber; 306, ventilation duct; 4, slide; 5, cleaning assembly; 51, movable barrel; 52, pressing column; 53, first spring; 54, limiting panel; 55, sponge; 6, replacement assembly; 61, movable channel; 62, sealing gasket; 63, fixing rod; 64, limiting rod; 65, triangular block; 66, trapezoidal block; 67, exchange tube; 68, pumping rod; 69, second spring; 7, back plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 9 , an electrical cabinet for installing thermal control instruments in a power plant, comprising an electrical cabinet 1 and a condensation barrel 2 fixedly mounted on the upper end of the electrical cabinet 1, a back plate 7 being arranged in the inner cavity of the electrical cabinet 1, a cooling component 3 for cooling the inner cavity temperature of the electrical cabinet 1 being arranged between the electrical cabinet 1 and the condensation barrel 2, a cleaning component 5 for cleaning dust from the inner cavity back plate 7 of the electrical cabinet 1 being arranged on the electrical cabinet 1, and a replacement component 6 for replacing condensed water in the cooling component 3 with hot and cold water being arranged on the electrical cabinet 1; The cooling component 3 includes a multi-section U-shaped pipe 31 arranged on the inner side wall of the electrical cabinet 1 , and both ends of the multi-section U-shaped pipe 31 are connected to the condensation barrel 2 through a water inlet pipe 39 and a water outlet pipe 301 , respectively.

[0024] The cooling assembly 3 includes a first gas storage shell 32 fixedly mounted on the back plate 7 and a connecting rod 33 slidably arranged on the first gas storage shell 32. A slideway 4 is provided on the back plate 7. A plurality of second gas storage shells 34 are slidably arranged on the back plate 7. The second gas storage shells 34 are slidably arranged on the corresponding slideways 4. A piston 37 is slidably connected in both the first gas storage shell 32 and the second gas storage shell 34. The connecting rod 33 on the first gas storage shell 32 is fixedly connected to the corresponding piston 37. The upper end of the connecting rod 33 is fixedly connected to the corresponding second gas storage shell 34. Inert gas is placed in the inner cavity of both the first gas storage shell 32 and the second gas storage shell 34. A push rod 35 is slidably provided on the second air storage shell 34, and the push rod 35 is fixedly connected to the corresponding piston 37. A connecting block 36 is fixedly installed on the side wall of the second air storage shell 34, and the connecting block 36 is fixedly connected to the bending part of the multi-section U-shaped pipe 31. The multi-section U-shaped pipe 31 is rotatably set on the electrical cabinet 1 through a limiting unit 38. By changing the shape of the multi-section U-shaped pipe 31, the electrical cabinet 1 can be better cooled and dissipated.

[0025] The condensation barrel 2 is provided with a sliding chamber 305, in which a sealing block 304 is slidably arranged, one end of the sealing block 304 is fixedly connected to the top rod 35, and the sliding chamber 305 is connected to the inner cavity of the condensation barrel 2 through a ventilation pipe 306. Figure 8 It can be seen that a one-way valve 302 is also provided on the ventilation pipe 306 , and the gas inside the sliding chamber 305 can enter the inner cavity of the condensation barrel 2 in a one-way manner.

[0026] There are several second gas storage shells 34, and the several second gas storage shells 34 are evenly distributed on the back plate 7. Through the distribution of the positions of the second gas storage shells 34, the expansion of the inert gas cannot be triggered well when the local temperature of the electrical cabinet 1 is high or low.

[0027] The limiting unit 38 includes a connecting shaft 381 rotatably arranged on the inner cavity side wall of the electrical cabinet 1 and a U-shaped frame 384 fixedly installed at one end of the connecting shaft 381. The multi-section U-shaped pipe 31 is clamped on the U-shaped frame 384. When the multi-section U-shaped pipe 31 is pulled to move, the U-shaped frame 384 can move with the multi-section U-shaped pipe 31. At the same time, the U-shaped frame 384 will rotate around the connecting shaft 381. A baffle 382 is fixedly installed on the axial side wall of the connecting shaft 381, and a blocking block 383 is fixedly installed on the inner cavity side wall of the electrical cabinet 1. The baffle 382 is located at the upper end of the blocking block 383. Through the cooperation of the baffle 382 and the blocking block 383, the U-shaped frame 384 and the multi-section U-shaped pipe 31 can be kept in a horizontal state and will not fall off easily.

[0028] In the present embodiment, since the first gas storage shell 32 and the second gas storage shell 34 are distributed at multiple points, the two can quickly receive the heat of the internal temperature of the electrical cabinet 1. Since the heat generated in the electrical cabinet 1 is uneven, it can be quickly collected through the arrangement of the position of the second gas storage shell 34. At this time, the inert gas inside the first gas storage shell 32 and the second gas storage shell 34 expands. At this time, the piston 37 in the first gas storage shell 32 will be lifted up, and the piston 37 drives the connecting rod 33 to move. The connecting rod 33 will drive the second gas storage shell 34 to move. At this time, when the inert gas in the second gas storage shell 34 expands at the same time, the second gas storage shell 34 will drive the corresponding second gas storage shell 34 to move upward through the corresponding push rod 35. At this time, the connecting block 36 will move upward with the second gas storage shell 34. Since the multi-section U-shaped pipe 31 is limited by the U-shaped frame 384, due to The movement of the connecting block 36 will drive the multi-section U-shaped pipe 31 to move upward near the connecting block 36, and the end away from the connecting block 36 will tilt downward. At this time, the entire multi-section U-shaped pipe 31 will tilt as a whole, increasing the contact area between the multi-section U-shaped pipe 31 and the inside of the receiving electrical cabinet 1. At the same time, the top rod 35 will drive the sealing block 304 to slide along the sliding chamber 305. At this time, the gas in the sliding chamber 305 can be pushed into the inner cavity of the condensation barrel 2. At this time, the increased air pressure in the condensation barrel 2 can push the condensed water inside it into the water inlet pipe 39 and the multi-section U-shaped pipe 31. After the condensed water in the multi-section U-shaped pipe 31 is heat exchanged with the temperature in the electrical cabinet 1, the cold condensed water can be injected into the multi-section U-shaped pipe 31 in time, which can be further cooled. At the same time, the overall shape of the multi-section U-shaped pipe 31 is changed, and the contact area with the electrical cabinet 1 is increased, which can further accelerate the cooling efficiency.

[0029] Example 2: Please refer to Figure 1-Figure 4 The cleaning component 5 includes a movable barrel 51 fixedly mounted on the side wall of the second air storage shell 34 and a pressing column 52 slidably arranged on the movable barrel 51, a first spring 53 is fixedly connected between the pressing column 52 and the movable barrel 51, one end of the pressing column 52 is fixedly mounted with a limiting panel 54, and one end of the limiting panel 54 is fixedly mounted with a sponge 55. Through the setting of the sponge 55, since it is porous in itself, during the process of wiping and cleaning the back plate 7, part of the dust can be collected into its own holes, and at the same time, the sponge 55 can be adhered to the limiting panel 54 by glue, the sponge 55 is in contact with the back plate 7, the movable barrel 51 is slidably arranged on the slide 4, and the first spring 53 is in a compressed state in the initial state, so that the sponge 55 is always in contact with the back plate 7, which can better collect and clean the dust.

[0030] In this embodiment, as the second air storage shell 34 moves upward, it will drive the movable barrel 51 to slide along the slide 4, and the movable barrel 51 will drive the corresponding limiting panel 54 and sponge 55 to slide. As the sponge 55 continues to slide along the back plate 7, it can clean and absorb the dust on the back plate 7 to prevent excessive dust accumulation and dust falling onto the corresponding components, which can further ensure the protection of the components of the electrical cabinet 1.

[0031] Example 3: Please refer to Figure 1-Figure 9 The replacement component 6 includes an exchange tube 67 connected to one end of the water outlet pipe 301, and a pumping rod 68 is slidably arranged on the exchange tube 67. Both ends of the water outlet pipe 301 and the ventilation pipe 306 are provided with a one-way valve 302. The one-way valve 302 on the water outlet pipe 301 near the bottom of the electrical cabinet 1 has the function of allowing the water in the multi-section U-shaped pipe 31 to enter the water pipe 301 in one direction. The one-way valve 302 at one end of the water pipe 301 near the condensation barrel 2 allows the water in the water pipe 301 to enter the condensation barrel 2 in one direction. A plurality of water outlet holes 303 are opened at one end of the water outlet pipe 301 located in the condensation barrel 2. Through the setting of the water outlet holes 303, the condensed water that has undergone heat exchange can be quickly merged with the condensed water that has not undergone heat exchange.

[0032] The replacement component 6 also includes a fixing rod 63 fixedly installed at one end of the limit panel 54 and a limiting rod 64 fixedly installed at one end of the fixing rod 63, a triangular block 65 is fixedly installed at one end of the limiting rod 64, a trapezoidal block 66 is fixedly installed at one end of the pumping rod 68, the inclined surface of the triangular block 65 is in contact with the inclined surface of the trapezoidal block 66, a movable channel 61 is opened on the side wall of the electrical cabinet 1, the fixing rod 63 is slidably set on the movable channel 61, and a sealing gasket 62 is set on the movable channel 61. The setting of the sealing gasket 62 can prevent external dust from floating into the interior of the electrical cabinet 1.

[0033] A second spring 69 is sleeved on the pumping rod 68 , and two ends of the second spring 69 are fixedly connected to the side wall of the exchange tube 67 and the axial side wall of the pumping rod 68 respectively.

[0034] In this embodiment: during the upward movement of the limit panel 54, it also drives the fixed rod 63 to slide along the movable path 61. At the same time, the fixed rod 63 allows the triangular block 65 to squeeze the trapezoidal block 66 through the limiting rod 64. Since the inclined surfaces of the two are in contact, the triangular block 65 moves the trapezoidal block 66 upward and drives the pumping rod 68 to slide along the exchange tube 67. At this time, the sliding of the pumping rod 68 can generate negative pressure, and the condensed water in the multi-section U-shaped pipe 31 enters the inner cavity of the outlet pipe 301 through the one-way valve 302. At this time, the condensed water in the condensation barrel 2 that has not undergone heat exchange enters the multi-section U-shaped pipe 31, and the condensed water that has undergone heat exchange enters the outlet pipe 301. When the temperature in the electrical cabinet 1 drops, the pumping rod 68 will return to its initial state. At this time, the water in the outlet pipe 301 enters the condensation barrel 2 through the one-way valve 302 close to the condensation barrel 2, so that the condensed water that has undergone heat exchange can be discharged back into the condensation barrel 2, so that the used condensed water can be reused.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical cabinet for installing thermal control instruments in a power plant, comprising an electrical cabinet (1) and a condenser barrel (2) fixedly mounted on the upper end of the electrical cabinet (1), a back plate (7) being arranged in the inner cavity of the electrical cabinet (1), characterized in that: A cooling component (3) capable of cooling the inner cavity temperature of the electrical cabinet (1) is arranged between the electrical cabinet (1) and the condensation barrel (2); a cleaning component (5) capable of cleaning dust from the inner cavity back panel (7) of the electrical cabinet (1) is also arranged on the electrical cabinet (1); and a replacement component (6) capable of performing hot-cold replacement of condensed water in the cooling component (3) is also arranged on the electrical cabinet (1); The cooling component (3) comprises a multi-section U-shaped pipe (31) arranged on the inner cavity side wall of the electrical cabinet (1), and the two ends of the multi-section U-shaped pipe (31) are respectively connected to the condensation barrel (2) through a water inlet pipe (39) and a water outlet pipe (301).

2. The electrical cabinet for installing thermal control instruments in a power plant according to claim 1, characterized in that: The cooling assembly (3) comprises a first gas storage shell (32) fixedly mounted on a back plate (7) and a connecting rod (33) slidably arranged on the first gas storage shell (32), the back plate (7) is provided with a slideway (4), and a plurality of second gas storage shells (34) are slidably arranged on the back plate (7), and the second gas storage shells (34) are slidably arranged on the corresponding slideways (4). Pistons (37) are slidably connected in the first gas storage shell (32) and the second gas storage shell (34), the connecting rod (33) on the first gas storage shell (32) is fixedly connected to the corresponding piston (37), and the upper end of the connecting rod (33) is fixedly connected to the corresponding second gas storage shell (34), and inert gas is placed in the inner cavity of the first gas storage shell (32) and the second gas storage shell (34). A push rod (35) is slidably provided on the second gas storage shell (34), and the push rod (35) is fixedly connected to the corresponding piston (37). A connecting block (36) is fixedly installed on the side wall of the second gas storage shell (34), and the connecting block (36) is fixedly connected to the bend on the multi-section U-shaped pipe (31). The multi-section U-shaped pipe (31) is rotatably provided on the electrical cabinet (1) via a limiting unit (38).

3. The electrical cabinet for installing thermal control instruments in a power plant according to claim 2, characterized in that: A sliding chamber (305) is provided in the condensation barrel (2), a sealing block (304) is slidably provided in the sliding chamber (305), one end of the sealing block (304) is fixedly connected to the top rod (35), and the sliding chamber (305) is connected to the inner cavity of the condensation barrel (2) via a ventilation pipe (306).

4. The electrical cabinet for installing thermal control instruments in a power plant according to claim 2, characterized in that: A plurality of the second gas storage shells (34) are provided, and the plurality of the second gas storage shells (34) are evenly distributed and arranged on the back plate (7).

5. The electrical cabinet for installing thermal control instruments in a power plant according to claim 2, characterized in that: The limiting unit (38) comprises a connecting shaft (381) rotatably arranged on the inner cavity side wall of the electrical cabinet (1) and a U-shaped frame (384) fixedly mounted on one end of the connecting shaft (381); a baffle (382) is fixedly mounted on the axial side wall of the connecting shaft (381); a blocking block (383) is fixedly mounted on the inner cavity side wall of the electrical cabinet (1); and the baffle (382) is located at the upper end of the blocking block (383).

6. The electrical cabinet for installing thermal control instruments in a power plant according to claim 2, characterized in that: The cleaning assembly (5) comprises a movable barrel (51) fixedly mounted on the side wall of the second air storage housing (34) and a pressing column (52) slidably mounted on the movable barrel (51); a first spring (53) is fixedly connected between the pressing column (52) and the movable barrel (51); a limiting panel (54) is fixedly mounted on one end of the pressing column (52); and a sponge (55) is fixedly mounted on one end of the limiting panel (54).

7. The electrical cabinet for installing thermal control instruments in a power plant according to claim 6, characterized in that: The sponge (55) is in contact with the back plate (7), and the movable barrel (51) is slidably arranged on the slideway (4).

8. The electrical cabinet for installing thermal control instruments in a power plant according to claim 3, characterized in that: The replacement assembly (6) comprises an exchange tube (67) connected to one end of a water outlet pipe (301), a water pumping rod (68) being slidably arranged on the exchange tube (67), one-way valves (302) being arranged at both ends of the water outlet pipe (301) and on the ventilation pipe (306), and a plurality of water outlet holes (303) being provided at one end of the water outlet pipe (301) located in the condensation barrel (2).

9. The electrical cabinet for installing thermal control instruments in a power plant according to claim 8, characterized in that: The replacement assembly (6) further comprises a fixing rod (63) fixedly mounted on one end of the limiting panel (54) and a limiting rod (64) fixedly mounted on one end of the fixing rod (63); a triangular block (65) is fixedly mounted on one end of the limiting rod (64); a trapezoidal block (66) is fixedly mounted on one end of the pumping rod (68); an inclined surface of the triangular block (65) contacts an inclined surface of the trapezoidal block (66); a movable path (61) is provided on the side wall of the electrical cabinet (1); the fixing rod (63) is slidably mounted on the movable path (61); and a sealing gasket (62) is provided on the movable path (61).

10. The electrical cabinet for installing thermal control instruments in a power plant according to claim 9, characterized in that: A second spring (69) is sleeved on the pumping rod (68), and two ends of the second spring (69) are respectively fixedly connected to the side wall of the exchange tube (67) and the axial side wall of the pumping rod (68).

Images