Cathode protection device convenient to replace

Abstract

The utility model discloses a cathode protection device convenient to replace, which is mounted in an access hole reserved in a tank body needing to be protected and comprises a device main body, the device main body is communicated with the tank body, a valve body is mounted at the communication position, an anode module is mounted in the device main body, and a connecting module comprises a bolt, sealing rubber and a contact elastic sheet. The anode module comprises an anode block, a pressing plate, a stainless steel spring and a fixing device. According to the cathode protection method adopting the sacrificial anode, the service life of the structure can be effectively prolonged; the device and the protected tank body are connected through the elastic contact piece, so that a reliable transmission channel is provided for charges; the anode block is fixed on the cathode protection device through the pressing plate, the stainless steel spring and the fixing device, and a reliable fixing mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cathode protection, in particular to a cathode protection device which is convenient to replace. Background Art

[0002] In the sewage treatment process, metal pipes, reaction tanks, or sewage treatment plant tanks with prefabricated designs may have metal corrosion problems. Brushing anti-corrosion paint is a common anti-corrosion method, but it is generally only effective within 5 years and cannot guarantee the design life of the equipment; or choose materials with better corrosion resistance, such as 304 stainless steel, but the cost will increase. Utility Model Content

[0003] The utility model provides a conveniently replaceable cathode protection device, which has the advantages of being convenient to install, convenient to replace, convenient to control, and having no influence on the use function of the structure when the cathode protection device is replaced.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A conveniently replaceable cathode protection device is installed in a maintenance port reserved on a tank body to be protected, comprising a device body connected to the tank body, a valve body installed at the connection point, and an anode module installed in the device body.

[0006] As a preferred embodiment of the above scheme, one end of the device body is connected to the tank body through a connecting module, and the other end is connected to a blocking plate through the connecting module.

[0007] As a preferred embodiment of the above solution, the connection module includes bolts, sealing rubber, and contact springs.

[0008] As a preferred embodiment of the above scheme, an observation window is provided on the device body.

[0009] As a preferred embodiment of the above solution, the valve body is a butterfly valve.

[0010] As a preferred embodiment of the above solution, the anode module includes an anode block, a pressure plate, a stainless steel spring, and a fixing device.

[0011] Due to the above structure, the beneficial effects of the utility model are:

[0012] 1. The cathodic protection method of sacrificial anode can effectively extend the service life of the structure;

[0013] 2. Under normal use, the butterfly valve is open. When replacing the anode block, the butterfly valve is closed and the plugging plate is opened for replacement. Replacing the cathodic protection device has no effect on the function of the structure, which is convenient for installation, replacement and control;

[0014] 3. The anode block is fixed on the cathodic protection device through a pressure plate, a stainless steel spring and a fixing device, which has a reliable fixing method;

[0015] 4. Through the elastic contact piece, there is a continuous transmission channel for charge between the cathodic protection device and the protected device;

[0016] 5. The cathodic protection device is equipped with an observation window to observe the remaining amount of the anode block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the connection module of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the anode module of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Based on the embodiments of 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.

[0022] like Figure 1 As shown, this embodiment provides a conveniently replaceable cathodic protection device, wherein an inspection port is provided on the tank body 1 to be protected, and the cathodic protection device is installed in the inspection port. The cathodic protection device comprises a device body 2, wherein the device body 2 is connected to the tank body 1, a valve body 3 is installed at the connection point, and an anode module 4 is installed in the device body 2.

[0023] Specific:

[0024] In this embodiment, one end of the device body 2 is connected to the tank body 1 through the connection module 5, and the other end is connected to the blocking plate 6 through the connection module 5. Figure 2 As shown, the connection module 5 includes a bolt 51 and a sealing rubber 52 and a contact spring 53 arranged on the outside of the bolt 51. The tank body 1 and the device body 2, and the blocking plate 6 and the device body 2 are connected by the bolt 51. The connection is sealed with a sealing rubber 52 to prevent water leakage. The tank body 1 and the cathode protection device are connected by an elastic contact spring 53 on the connection module 5, ensuring a continuous transmission channel for charge between the cathode protection device and the protected device.

[0025] In this embodiment, an observation window 7 is provided on the device body 2 to facilitate observation of the remaining amount of the anode block 41 .

[0026] In this embodiment, the valve body 3 is a butterfly valve, which is arranged at the inlet of the cathodic protection device.

[0027] In this embodiment, if Figure 3 As shown, the anode module 4 includes an anode block 41, a pressure plate 42, a stainless steel spring 43, and a fixing device 44 (such as a fixing seat, a fixing block, etc.). The fixing device 44 is used to fix the anode block 41 on the device body 2. The pressure plate 42 is pressed above the anode block 41, and a stainless steel spring 43 is provided between the pressure plate 42 and the fixing device 44. The anode block 41 is fixed to the cathode protection device by the pressure plate 42, the stainless steel spring 43, and the fixing device 44, which has a reliable fixing method. As the anode block 41 is continuously consumed and reduced, the stainless steel spring 43 expands and contracts accordingly to fix the position of the anode block 41 so that it does not move.

[0028] The working principle of the above structure:

[0029] During normal operation, the butterfly valve 3 is opened, the cathodic protection device is connected to the tank body 1, the liquid in the tank body 1 enters the cathodic protection device, and the anode block 41 starts to work to protect the tank body 1. Through the observation window 7, if the anode block 41 is exhausted or needs maintenance, the butterfly valve 3 is closed and the plugging plate 6 is opened, the anode block 41 can be easily replaced, and the replacement of the cathodic protection device has no effect on the use function of the structure.

[0030] It should be noted that:

[0031] 1. The main body of the cathodic protection device needs to be made of the same material as the main body of the protected device (tank) to prevent additional charge;

[0032] 2. The anode block material should be a metal that is more active than the tank material, and should not produce hydrogen evolution reaction or cause water pollution. For example, if the tank is a steel structure, the anode block material can be aluminum or zinc.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveniently replaceable cathodic protection device installed in a reserved inspection port on the tank body to be protected, characterized in that: The device comprises a device body, which is connected with a tank body, a valve body is installed at the connection point, and an anode module is installed in the device body.

2. A conveniently replaceable cathodic protection device according to claim 1, characterized in that: One end of the device body is connected to the tank body through a connecting module, and the other end is connected to a blocking plate through the connecting module.

3. A conveniently replaceable cathodic protection device according to claim 2, characterized in that: The connection module includes bolts, sealing rubber and contact springs.

4. A conveniently replaceable cathodic protection device according to claim 1, characterized in that: An observation window is provided on the device body.

5. The easily replaceable cathodic protection device according to claim 1, characterized in that: The valve body adopts a butterfly valve.

6. The easily replaceable cathodic protection device according to claim 1, characterized in that: The anode module comprises an anode block, a pressure plate, a stainless steel spring and a fixing device.

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