Anti-corrosion structure for heat exchanger of power plant

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a power plant heat exchanger anti-corrosion structure which comprises a fixing base, an internal anti-corrosion mechanism is arranged in the fixing base, an external anti-corrosion mechanism is arranged on the surface of a heat exchanger body, the heat exchanger body is fixedly connected to the top of the fixing base, and an inlet is fixedly connected to the front end of the top of the heat exchanger body. An outlet is fixedly connected to the rear end of the top of the heat exchanger body, a liquid outlet is fixedly connected to the rear end of the bottom of the heat exchanger body, and a motor can drive a lead screw to rotate by arranging the internal anti-corrosion mechanism, so that an annular brush is driven to move back and forth on the inner wall of the heat exchanger body; water and other corrosive substances generated on the inner wall of the heat exchanger body are scraped off through the annular brush, it is guaranteed that the inner wall of the heat exchanger body is clean and tidy, attachment of corrosive substances is reduced, and the service cycle and the service life of the heat exchanger body are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an anti-corrosion structure of a heat exchanger in a power plant. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also the main equipment for improving energy utilization.

[0003] According to a power plant heat exchanger anti-corrosion structure disclosed on the patent website (authorization announcement number: CN215063931U), "The utility model discloses a power plant heat exchanger anti-corrosion structure, including a tank body, the left side of the tank body is connected to a cold water pipe, the right side of the bottom of the tank body is connected to a hot water pipe, the top and bottom of the inner cavity of the tank body are both horizontally connected with pipes, the top and bottom of the inner wall of the tank body and the surface of the sleeve are fixedly connected with baffles, and the left and right sides of the baffles are provided with filter plates. The utility model opens the cold water pipe to enter the interior of the tank body, and then the water flows into the interior of the pipe for circulation, and then opens the hot water pipe to enter the interior of the tank body through the baffle and the filter plate to prevent impurities from adhering to the surface, the cold fluid flows into the inside of the pipe, and the hot fluid flows to the outside of the pipe through the baffle, and the hot fluid completes the heat exchange through the baffle, which solves the problem that the existing heat exchanger has no anti-corrosion effect, resulting in a low service life of the heat exchanger, reduces the cost of manual maintenance, increases the efficiency of the heat exchanger, and improves the practicality of the heat exchanger."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The anti-corrosion structure of the heat exchanger in the power plant includes a tank body, through which the cold fluid flows through the inside of the pipeline, and the hot fluid flows through the baffle to the outside of the pipeline. The hot fluid completes the heat exchange through the baffle, which solves the problem that the existing heat exchanger does not have an anti-corrosion effect. However, a large amount of corrosive substances and water will still remain on the inner wall of the device. If the residual substances and water adhere to the inner wall for a long time, the utilization efficiency of the heat exchanger will be reduced, and the service life of the heat exchanger will be greatly reduced. Utility Model Content

[0006] The utility model aims to provide an anti-corrosion structure for a heat exchanger in a power plant to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a power plant heat exchanger anti-corrosion structure, including a fixing seat, an internal anti-corrosion mechanism is arranged inside, and an external anti-corrosion mechanism is arranged on the surface of the heat exchanger body.

[0008] Preferably, the internal anti-corrosion mechanism includes a motor fixing frame, the motor fixing frame is fixedly connected to the left side of the back side of the heat exchanger body, a motor is arranged inside the motor fixing frame, a fixing ring 1 is fixedly connected to the rear end of the heat exchanger body, a fixing ring 2 is fixedly connected to the front end of the heat exchanger body, a screw is rotatably connected between the fixing ring 1 and the fixing ring 2 on the left side, a guide rod is fixedly connected between the fixing ring 1 and the fixing ring 2 on the right side, an annular brush is slidably connected on the surface of the screw rod and the guide rod, and the internal anti-corrosion mechanism can be provided so that the screw rod can be driven to rotate by the motor, thereby driving the annular brush to move back and forth on the inner wall of the heat exchanger body, and the water and other corrosive substances generated on the inner wall of the heat exchanger body are scraped off by the annular brush, thereby ensuring the cleanliness of the inner wall of the heat exchanger body, reducing the adhesion of corrosive substances, and enhancing the service life of the heat exchanger body.

[0009] Preferably, the guide rod is fixedly connected between the first fixing ring and the second fixing ring, a motor is arranged on the back of the screw rod, and the first fixing ring is rotatably connected to the front output end of the motor.

[0010] Preferably, the external anti-corrosion mechanism includes an external anti-corrosion ring, which is sleeved on the middle section and front and rear ends of the surface of the heat exchanger body; a fixing box is fixedly connected to the surface of the external anti-corrosion ring, a built-in groove is opened inside the fixing box, a heating pipe is fixedly connected inside the built-in groove, a connecting block is provided on the surface of the external anti-corrosion ring, a fixing block is fixedly connected to the surface of the external anti-corrosion ring, and fixing bolts are provided on the surface of the fixing block. The setting of the external anti-corrosion mechanism can evaporate the moisture on the surface of the heat exchanger body through the heating pipe inside the fixing box, thereby ensuring the dryness of the heat exchanger body and ensuring that the heat exchanger body will not be corroded due to moisture, thereby further enhancing the service life of the heat exchanger body.

[0011] Preferably, the fixing boxes are distributed in an annular shape on the surface of the external anti-corrosion ring, and the external anti-corrosion ring and the connecting block are connected together by a fixing block and fixing bolts.

[0012] Preferably, the top of the fixing seat is fixedly connected to a heat exchanger body, the front end of the top of the heat exchanger body is fixedly connected to an inlet, the rear end of the top of the heat exchanger body is fixedly connected to an outlet, and the rear end of the bottom of the heat exchanger body is fixedly connected to a drain port.

[0013] Compared with the prior art, the utility model provides an anti-corrosion structure for a heat exchanger in a power plant, which has the following beneficial effects:

[0014] The anti-corrosion structure of the heat exchanger of the power plant is provided with an internal anti-corrosion mechanism. The internal anti-corrosion mechanism can drive the screw to rotate through the motor, thereby driving the annular brush to move back and forth on the inner wall of the heat exchanger body. The water and other corrosion-causing substances generated on the inner wall of the heat exchanger body are scraped off by the annular brush, thereby ensuring the cleanliness of the inner wall of the heat exchanger body, reducing the adhesion of corrosive substances, and enhancing the service life and cycle of the heat exchanger body.

[0015] The anti-corrosion structure of the heat exchanger of the power plant is provided with an external anti-corrosion mechanism. The setting of the external anti-corrosion mechanism can evaporate the moisture on the surface of the heat exchanger body through the heating pipe inside the fixed box, thereby ensuring the dryness of the heat exchanger body and ensuring that the heat exchanger body will not be corroded due to moisture, thereby further enhancing the service life of the heat exchanger body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the heat exchanger body of the utility model structure;

[0019] Figure 3 This is a schematic diagram of the internal anti-corrosion mechanism of the utility model structure;

[0020] Figure 4 This is a schematic diagram of the external anti-corrosion mechanism of the utility model structure;

[0021] Figure 5 This is a schematic diagram of the structural connection block of the utility model.

[0022] In the figure: 1. fixing seat; 2. heat exchanger body; 3. inlet; 4. outlet; 5. drain port; 6. internal anti-corrosion mechanism; 61. motor fixing bracket; 62. motor; 63. fixing ring 1; 64. fixing ring 2; 65. screw rod; 66. guide rod; 67. annular brush; 7. external anti-corrosion mechanism; 71. external anti-corrosion ring; 72. fixing box; 73. built-in groove; 74. heating tube; 75. connecting block; 76. fixing block; 77. fixing bolt. DETAILED DESCRIPTION

[0023] 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.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides the following technical solutions:

[0026] For example, see Figure 1-3 , a heat exchanger anti-corrosion structure for a power plant comprises a fixing seat 1, an internal anti-corrosion mechanism 6 is arranged inside, and an external anti-corrosion mechanism 7 is arranged on the surface of a heat exchanger body 2;

[0027] The internal anti-corrosion mechanism 6 includes a motor fixing frame 61, which is fixedly connected to the left side of the back side of the heat exchanger body 2. A motor 62 is arranged inside the motor fixing frame 61. A fixing ring 1 63 is fixedly connected to the rear end of the heat exchanger body 2, and a fixing ring 2 64 is fixedly connected to the front end of the heat exchanger body 2. A screw rod 65 is rotatably connected between the fixing ring 1 63 and the fixing ring 2 64 on the left side, and a guide rod 66 is fixedly connected between the fixing ring 1 63 and the fixing ring 2 64 on the right side. An annular brush 67 is slidably connected on the surface of the screw rod 65 and the guide rod 66. By providing the internal anti-corrosion mechanism 6, the screw rod 65 can be driven to rotate by the motor 62, thereby driving the annular brush 67 to move back and forth on the inner wall of the heat exchanger body 2. The water and other substances that may cause corrosion generated on the inner wall of the heat exchanger body 2 are scraped off by the annular brush 67, thereby ensuring that the inner wall of the heat exchanger body 2 is clean and tidy, reducing the adhesion of corrosive substances, and enhancing the service life of the heat exchanger body 2.

[0028] The guide rod 66 is fixedly connected between the fixing ring 1 63 and the fixing ring 2 64 . The motor 62 is arranged on the back of the screw rod 65 . The fixing ring 1 63 is rotatably connected to the front output end of the motor 62 .

[0029] For example 2, please refer to Figure 1-5, and on the basis of the first embodiment, the external anti-corrosion mechanism 7 further comprises an external anti-corrosion ring 71, the external anti-corrosion ring 71 is sleeved on the middle section and the front and rear ends of the surface of the heat exchanger body 2, a fixing box 72 is fixedly connected to the surface of the external anti-corrosion ring 71, a built-in groove 73 is provided inside the fixing box 72, a heating pipe 74 is fixedly connected inside the built-in groove 73, a connecting block 75 is provided on the surface of the external anti-corrosion ring 71, a fixing block 76 is fixedly connected to the surface of the external anti-corrosion ring 71, and a fixing bolt 77 is provided on the surface of the fixing block 76. The setting of the external anti-corrosion mechanism 7 can evaporate the moisture on the surface of the heat exchanger body 2 through the heating pipe 74 inside the fixing box 72, ensure the dryness of the heat exchanger body 2, ensure that the heat exchanger body 2 will not be corroded due to moisture, and further enhance the service life of the heat exchanger body 2;

[0030] The fixing box 72 is distributed in an annular shape on the surface of the external anti-corrosion ring 71, and the external anti-corrosion ring 71 and the connecting block 75 are connected together by a fixing block 76 and a fixing bolt 77;

[0031] The top of the fixing seat 1 is fixedly connected with a heat exchanger body 2, the front end of the top of the heat exchanger body 2 is fixedly connected with an inlet 3, the rear end of the top of the heat exchanger body 2 is fixedly connected with an outlet 4, and the rear end of the bottom of the heat exchanger body 2 is fixedly connected with a drain port 5.

[0032] In actual operation, when the device is used, the gas to be heat exchanged is introduced through the inlet 3 and discharged through the outlet 4 at a later time. The coolant or other liquid is discharged through the drain port 5. When the device is not working, the internal anti-corrosion mechanism 6 can be used to perform anti-corrosion treatment on the inside of the heat exchanger body 2. The motor 62 drives the screw 65 to rotate, thereby driving the annular brush 67 to move back and forth on the inner wall of the heat exchanger body 2. The annular brush 67 scrapes off the water and other substances that may cause corrosion generated on the inner wall of the heat exchanger body 2 to ensure that the inner wall of the heat exchanger body 2 is clean and tidy, reduce the adhesion of corrosive substances, and enhance the service life of the heat exchanger body 2. The setting of the external anti-corrosion mechanism 7 can evaporate the moisture on the surface of the heat exchanger body 2 through the heating pipe 74 inside the fixing box 72, ensure the dryness of the heat exchanger body 2, ensure that the heat exchanger body 2 will not be corroded due to moisture, and further enhance the service life of the heat exchanger body 2. The external anti-corrosion ring 71 can be replaced and repaired by removing the fixing bolt 77 from the fixing block 76. The overall operation is simple and fast.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A heat exchanger anti-corrosion structure for a power plant, comprising a fixing seat (1), characterized in that: The fixing seat (1) is fixedly connected to a heat exchanger body (2), an internal anti-corrosion mechanism (6) is provided inside the heat exchanger body (2), and an external anti-corrosion mechanism (7) is provided on the surface of the heat exchanger body (2); The internal anti-corrosion mechanism (6) comprises a motor fixing frame (61), the motor fixing frame (61) being fixedly connected to the left side of the back side of the heat exchanger body (2), a motor (62) being arranged inside the motor fixing frame (61), a fixing ring 1 (63) being fixedly connected to the rear end of the heat exchanger body (2), a fixing ring 2 (64) being fixedly connected to the front end of the heat exchanger body (2), a screw rod (65) being rotatably connected between the fixing ring 1 (63) and the fixing ring 2 (64) on the left side, a guide rod (66) being fixedly connected between the fixing ring 1 (63) and the fixing ring 2 (64) on the right side, and an annular brush (67) being slidably connected to the surfaces of the screw rod (65) and the guide rod (66).

2. The anti-corrosion structure of a heat exchanger in a power plant according to claim 1, characterized in that: The guide rod (66) is fixedly connected between the first fixing ring (63) and the second fixing ring (64); a motor (62) is arranged on the back of the screw rod (65); and the first fixing ring (63) is rotatably connected to the front output end of the motor (62).

3. The anti-corrosion structure of a heat exchanger in a power plant according to claim 1, characterized in that: The external anti-corrosion mechanism (7) comprises an external anti-corrosion ring (71), the external anti-corrosion ring (71) being sleeved on the middle section and the front and rear ends of the surface of the heat exchanger body (2), the surface of the external anti-corrosion ring (71) being fixedly connected to a fixing box (72), the fixing box (72) being provided with a built-in groove (73), the built-in groove (73) being fixedly connected to a heating pipe (74), the surface of the external anti-corrosion ring (71) being provided with a connecting block (75), the surface of the external anti-corrosion ring (71) being fixedly connected to a fixing block (76), the surface of the fixing block (76) being provided with fixing bolts (77).

4. The anti-corrosion structure of a heat exchanger for a power plant according to claim 3, characterized in that: The fixing box (72) is distributed in an annular shape on the surface of the external anti-corrosion ring (71), and the external anti-corrosion ring (71) and the connecting block (75) are connected together via a fixing block (76) and fixing bolts (77).

5. The anti-corrosion structure of a heat exchanger in a power plant according to claim 1, characterized in that: The top of the fixing seat (1) is fixedly connected to a heat exchanger body (2), the front end of the top of the heat exchanger body (2) is fixedly connected to an inlet (3), the rear end of the top of the heat exchanger body (2) is fixedly connected to an outlet (4), and the rear end of the bottom of the heat exchanger body (2) is fixedly connected to a drain port (5).

Images