MGGH heat medium water system with pipeline corrosion protection function

Abstract

The application belongs to the technical field of flue gas treatment equipment, and particularly relates to a MGGH heat medium water system with a pipeline corrosion protection function. The structure of the MGGH heat medium water system comprises a heat exchanger main body, a heat exchanger water pipe, a connecting water pipe, a flue gas inlet pipe, a flue gas outlet pipe and a circulating pump. The MGGH heat medium water system further comprises an electric heater unit arranged on the flue gas inlet pipe and used for increasing the temperature of the outer surface of the heat exchanger water pipe by heating flue gas, a perforated water tank unit arranged on the connecting water pipe, a feeding barrel unit arranged on the perforated water tank unit and used for adding alkali materials, and a water pumping pipe unit arranged on the perforated water tank unit and used for replacing circulating water.

Description

Technical Field

[0001] This application belongs to the technical field of flue gas treatment equipment, and in particular relates to an MGGH heat medium water system with pipeline corrosion protection function. Background Technology

[0002] The MGGH heat transfer fluid system is a technology designed to improve energy efficiency and reduce pollutant emissions. It is primarily used in coal-fired power plants and other industrial facilities requiring the treatment of large volumes of flue gas. The MGGH system achieves efficient energy recovery and utilization by using waste heat from the flue gas to preheat the air entering the boiler or to heat the recycled heat transfer fluid.

[0003] Correspondingly, the main function of this system is:

[0004] First, flue gas cooling refers to the cooling of high-temperature flue gas as it passes through a heat exchanger. This not only reduces the workload of subsequent environmental protection equipment (such as desulfurization towers and dust collectors), but also reduces the risk of corrosion to these devices.

[0005] Secondly, heat transfer water heating refers to the process of absorbing heat from flue gas to heat the water to a higher temperature, thereby reducing boiler energy consumption or using it directly as domestic hot water, further improving the thermal efficiency of the entire system.

[0006] The main components of the MGGH heat transfer water system include a heat exchanger, a circulating pump, and a water storage tank.

[0007] On the other hand, in the MGGH heat transfer water system, sulfuric acid vapor in the flue gas is prone to condense and deposit on the outer surface of the heat exchange tube when it encounters the relatively cold heat exchange tube. That is, the outer surface temperature of the heat exchange tube is lower than the dew point temperature of the sulfuric acid vapor, which in turn causes low-temperature corrosion to the heat exchange tube.

[0008] In addition, it should be noted that sulfuric acid vapor can also penetrate the heat exchange tubes, corroding their inner surface and causing a significant decrease in the pH value of the heat transfer medium. Therefore, corrosion protection measures for the MGGH heat transfer medium system's piping need to consider both the inner and outer sides of the heat exchange tubes.

[0009] For example, Chinese utility model patent with authorization announcement number CN221325191U and authorization announcement date of July 12, 2024 discloses a finned tube flue gas heat exchanger, whose main structural components include: heat exchanger housing, heat exchanger flue gas inlet, heat exchanger flue gas outlet, finned tube unit assembly, square tube, high temperature resistant glass, condensate drain outlet, wheel assembly, conical shell, and heat exchanger flue gas observation port.

[0010] The advantages of the flue gas heat exchanger in this utility model patent are mainly: its finned tube unit can slide laterally, and when the dew point corrosion on it is obvious, it can slide out laterally for flushing, thereby playing a role in pipeline corrosion protection.

[0011] However, in actual use, this flue gas heat exchanger still has at least the following problems: incomplete protection against pipeline corrosion and high operational difficulty. Specifically, it cannot protect the inside of the finned tubes from corrosion, and the finned tubes need to be pulled out and pushed in relatively frequently, which is troublesome and inefficient. Utility Model Content

[0012] This application provides an MGGH heat transfer water system with pipeline corrosion protection function. The technical problem to be solved is: how to make the heat exchange pipeline in the MGGH heat transfer water system have a comprehensive and easy-to-operate corrosion protection function.

[0013] The technical solution adopted by this application to solve the above problems is: an MGGH heat medium water system with pipeline corrosion protection function, the structure of which includes a heat exchanger body, heat exchanger water pipe, connecting water pipe, flue gas inlet pipe, flue gas outlet pipe, and circulation pump, and further includes an electric heater unit installed on the flue gas inlet pipe to increase the outer surface temperature of the heat exchanger water pipe by heating the flue gas, a perforated water tank unit installed on the connecting water pipe, a feeding tank unit installed on the perforated water tank unit for adding alkali, and a pumping pipe unit installed on the perforated water tank unit for replacing the circulating water.

[0014] A further preferred technical solution is that the electric heater unit includes a protruding tube disposed on the flue gas inlet pipe, and an electric heating rod inserted into the protruding tube and the flue gas inlet pipe for heating the flue gas.

[0015] A further preferred technical solution is that the perforated water tank unit includes a tank body with the connecting water pipe inserted into it, a tank cover on the tank body, and two openings on the tank cover for installing the feeding barrel unit and the water pumping pipe unit, respectively.

[0016] A further preferred technical solution is that the feeding barrel unit includes a connecting rod inserted into the opening, a limiting plate disposed on the upper end face of the connecting rod and used to engage with the upper surface of the box cover, and a barrel disposed on the connecting rod and used to add alkali material into the box.

[0017] A further preferred technical solution is that: the perforated water tank unit further includes a fixing ring disposed on the upper surface of the tank cover and having the opening inside; the feeding barrel unit further includes a positioning ring disposed on the limiting plate and used to engage the outer ring surface of the fixing ring.

[0018] A further preferred technical solution is that the feeding barrel unit further includes a sliding tube disposed on the barrel and sleeved with the connecting rod, which is used to reduce the distance between the barrel and the limiting plate when the barrel is inserted and removed.

[0019] A further preferred technical solution is that the feeding barrel unit further includes a rope hole provided on the limiting plate, and a length adjustment rope with one end provided on the sliding tube and the other end passing through the rope hole, used for lifting and lowering the sliding tube.

[0020] A further preferred technical solution is that the feeding barrel unit further includes a gripping rod disposed on the upper surface of the limiting plate and bound with the length adjustment rope.

[0021] A further preferred technical solution is that the pumping pipe unit includes a pumping pipe body disposed on the opening, a plug disposed at the upper end of the pumping pipe body, and a connecting threaded section disposed on the outer annular surface at the upper end of the pumping pipe body.

[0022] A further preferred technical solution is that the perforated water tank unit further includes at least two transverse rods disposed on the inner side of the tank body and used to reinforce the connecting water pipe and the pumping pipe, respectively.

[0023] The beneficial effects of this application include at least the following two points.

[0024] First, the above-mentioned pipeline corrosion protection function is effective on the outer surface of the heat exchanger water pipe. The electric heater unit can heat the flue gas by turning it on and off as needed, so that the sulfuric acid droplets on the outer surface of the heat exchanger water pipe will vaporize and leave the outer surface of the heat exchanger water pipe.

[0025] Secondly, the above-mentioned pipeline corrosion protection function is effective on the inner surface of the heat exchanger water pipes. The feeding tank unit can add alkaline material to the heat medium water, thereby consuming the sulfuric acid component originally present in the heat medium water. The pumping pipe unit can partially or completely replace the heat medium water that already contains a large amount of sulfuric acid component. Both of these operations can provide corrosion protection for the inner surface of the heat exchanger water pipes and connecting water pipes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this application.

[0027] Figure 2 This is a schematic diagram of the electric heater unit in this application.

[0028] Figure 3 This is a schematic diagram showing the location of the exposed section of the heat exchanger water pipe in this application.

[0029] Figure 4 This is a schematic diagram showing the location and structure of the perforated water tank unit in this application.

[0030] Figure 5 This is a schematic diagram showing the position of the fixed ring in this application.

[0031] Figure 6 This is a schematic diagram of the pumping pipe unit in this application.

[0032] Figure 7 This is a schematic diagram of the location and structure of the feeding barrel unit in this application.

[0033] Figure 8 This is a schematic diagram showing the position of the length adjustment rope in this application.

[0034] Figure 9 This is a schematic diagram of the use of the sliding tube opening and the connecting rod limiting block in the prior art. At this time, residual alkali material is easy to accumulate in the sliding tube.

[0035] Figure 10 This is a schematic diagram of the material feeding tank unit in the removed and idle state in this application.

[0036] The meanings of the markings in the diagram are as follows.

[0037] a) Sliding tube opening; b) Connecting rod limiting block; c) Accumulated residual alkali material; d) Liquid surface;

[0038] Heat exchanger body 11, heat exchanger water pipe 12, connecting water pipe 13, flue gas inlet pipe 14, flue gas outlet pipe 15, circulation pump 16;

[0039] Electric heater unit 1, perforated water tank unit 2, feeding barrel unit 3, water pumping pipe unit 4, heat medium water sampling pipe 5;

[0040] Protruding tube 101, electric heating rod 102;

[0041] Box body 201, box cover 202, opening 203, fixing ring 204, horizontal bar 205;

[0042] Connecting rod 301, limiting plate 302, barrel body 303, positioning ring 304, sliding tube 305, rope hole 306, length adjustment rope 307, gripping rod body 308, internal thread ring 309;

[0043] Pumping pipe body 401, plug 402, threaded section for connection 403. Detailed Implementation

[0044] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0045] like Figures 1-10 As shown, an MGGH heat transfer medium water system with pipeline corrosion protection function includes a heat exchanger body 11, a heat exchanger water pipe 12, a connecting water pipe 13, a flue gas inlet pipe 14, a flue gas outlet pipe 15, and a circulation pump 16. It also includes an electric heater unit 1 installed on the flue gas inlet pipe 14 to increase the outer surface temperature of the heat exchanger water pipe 12 by heating the flue gas, a perforated water tank unit 2 installed on the connecting water pipe 13, a feeding tank unit 3 installed on the perforated water tank unit 2 for adding alkali, and a pumping pipe unit 4 installed on the perforated water tank unit 2 for replacing the circulating water.

[0046] In this embodiment, the heat exchanger is a commercially available product, and its structure includes the heat exchanger body 11 and the heat exchanger water pipe 12, the former corresponding to the shell side of the heat exchanger and the latter corresponding to the tube side of the heat exchanger.

[0047] For example, the flue gas generated by the boiler equipment of a coal-fired power plant can be cooled by passing through the flue gas inlet pipe 14, the heat exchanger body 11 and the flue gas outlet pipe 15 in sequence. Meanwhile, the heat transfer medium water can be heated by passing through the connecting water pipe 13, the heat exchanger water pipe 12 and then returning to the connecting water pipe 13.

[0048] On the other hand, the object that needs to have pipeline corrosion protection function is the heat exchanger water pipe 12, specifically the inner and outer surfaces of the pipe body portion located inside the heat exchanger water pipe 12.

[0049] The corrosion protection operation for the outer surface of the aforementioned pipe body is as follows: the electric heater unit 1 can heat the flue gas by turning it on and off as needed, so that the sulfuric acid droplets on the outer surface of the aforementioned pipe body will vaporize and turn back into sulfuric acid vapor, which will then leave the outer surface of the heat exchanger water pipe and be finally adsorbed and recovered by the subsequent desulfurization tower.

[0050] The corrosion protection operation for the inner surface of the aforementioned pipe body can be divided into two parts:

[0051] First, the feeding tank unit 3 can add alkaline materials to the heat medium water, thereby consuming the sulfuric acid component originally present in the heat medium water;

[0052] Secondly, pumping unit 4 can partially or completely replace the heat transfer fluid that already contains a large amount of sulfuric acid.

[0053] The aforementioned alkaline material refers to sodium hydroxide powder.

[0054] It is important to note that when the connecting water pipe 13 is equipped with a hot water discharge device, the hot water is used for production and domestic water. In this case, there is no need to perform pipeline corrosion protection operations on the inner surface of the pipe body, and the inner surface at this location can be considered to be free of corrosion problems.

[0055] The electric heater unit 1 includes a protruding tube 101 disposed on the flue gas inlet pipe 14, and an electric heating rod 102 inserted into the protruding tube 101 and the flue gas inlet pipe 14 for heating the flue gas.

[0056] In this embodiment, the electric heating rod 102 is a commercially available product, and its functions include common features such as switching, temperature control, timing, and prevention of accidental activation. For example, the electric heating rod 102 can be an explosion-proof heating rod manufactured by Taizhou Best Electric Heating Appliance Co., Ltd.

[0057] The flue gas inlet pipe 14 is provided with an opening for installing and communicating with the protruding pipe 101. The non-heating end of the electric heating rod 102 can block the protruding pipe 101, and the main body of the electric heating rod is located inside the flue gas inlet pipe 14, thereby achieving a sufficient flue gas heating effect.

[0058] For example, during normal operation of the system, the outer surface temperature of the portion of the heat exchanger water pipe 12 located within the heat exchanger body 11 is 70-90°C, which is lower than the dew point temperature of sulfuric acid vapor. Therefore, sulfuric acid vapor is relatively easy to condense at this location. However, when the electric heating rod 102 is turned on, it can raise the aforementioned outer surface temperature to 105-120°C, which is higher than the dew point temperature of sulfuric acid vapor in typical boiler flue gas. Therefore, it is relatively difficult for sulfuric acid droplets to condense and form, making it less likely to corrode the outer surface of the aforementioned pipe portion.

[0059] However, it should be noted that even if sulfuric acid vapor is completely non-condensable, it can still penetrate the pipe wall at the heat exchanger water pipe 12 and enter the heat transfer medium. Therefore, when the heat transfer medium is internally circulating water, in order to provide comprehensive corrosion protection for both the inside and outside of the heat exchanger water pipe 12, the electric heater unit 1, the feeding tank unit 3, and the water pumping unit 4 all need to be turned on periodically and / or as needed.

[0060] In the prior art, the material of the heat exchanger water pipe 12 is generally fluoroplastic, which already has relatively high corrosion resistance, but it is still not enough.

[0061] The perforated water tank unit 2 includes a tank body 201 with the connecting water pipe 13 inserted into it, a tank cover 202 on the tank body 201, and two openings 203 on the tank cover 202 for installing the feeding barrel unit 3 and the water pumping pipe unit 4, respectively.

[0062] In this embodiment, both the box body 201 and the box cover 202 are rectangular in shape, and they are joined together vertically and securely installed. The opening 203 is circular in shape.

[0063] The feeding barrel unit 3 includes a connecting rod 301 inserted into the opening 203, a limiting plate 302 disposed on the upper end surface of the connecting rod 301 and used to engage the upper surface of the box cover 202, and a barrel 303 disposed on the connecting rod 301 and used to add alkali material into the box 201.

[0064] In this embodiment, if the sodium hydroxide powder is poured directly by the operator through the opening 203, it will generate a large amount of heat upon contact with water, and then generate a large high temperature and rising airflow at the opening 203. This airflow will carry the falling sodium hydroxide powder and finally rush towards the operator, which is extremely dangerous. This is also the purpose and advantage of the feeding tank unit 3.

[0065] The general method of using the feeding tank unit 3 is as follows: Sodium hydroxide powder is added in sufficient quantity and all at once into the tank 303. Then, the operator holds the limiting plate 302 and inserts the connecting rod 301 downwards through the opening 203. Finally, the tank 303 is filled with hot water, completing the alkali addition operation. At this point, the limiting plate 302 has completely or mostly covered the opening 203, so the rising airflow will not endanger the operator.

[0066] Of course, the MGGH hot water system is also equipped with common pressure relief components. The above-mentioned flue gas heating operation, alkali addition operation, and hot water extraction operation do not affect the normal flue gas cooling and hot water heating functions.

[0067] Accordingly, the first structural style of the feeding barrel unit 3 is: the connecting rod 301, the limiting plate 302 and the barrel body 303 are integrally formed and completely fixed to each other.

[0068] The perforated water tank unit 2 further includes a fixing ring 204 disposed on the upper surface of the tank cover 202 and having the opening 203 inside; the feeding barrel unit 3 further includes a positioning ring 304 disposed on the limiting plate 302 and used to engage the outer ring surface of the fixing ring 204.

[0069] In this embodiment, the correct engagement position of the feeding barrel unit 3 on the opening 203 is as follows: the inner ring surface of the positioning ring 304 engages with the outer ring surface of the fixing ring 204, and the lower end surface of the positioning ring 304 presses against the upper surface of the box cover 202.

[0070] At this time, the connecting rod 301 is not easily broken by impact at the opening 203, and the barrel 303 can be completely submerged in the hot medium water. The dangerous airflow is not easily ejected at the opening 203. This is the function of the fixed ring 204 and the positioning ring 304 working together.

[0071] The feeding barrel unit 3 further includes a sliding tube 305 disposed on the barrel 303 and sleeved with the connecting rod 301, which is used to reduce the distance between the barrel 303 and the limiting plate 302 when the barrel 303 is inserted and removed.

[0072] In this embodiment, the alkali material inside the barrel 303 needs to be completely added to the heat transfer medium water. Therefore, the length of the connecting rod 301 is relatively large, making it relatively difficult to insert and remove the entire feeding barrel unit 3 at the opening 203. The connecting rod 301 and / or the barrel 303 are prone to bumping into the opening 203. Therefore, this is the purpose and function of the sliding tube 305.

[0073] Accordingly, the sliding tube 305 is used as follows:

[0074] First, before the entire feeding barrel unit 3 is inserted into or pulled out of the opening 203, the connecting rod 301 is retracted on the sliding tube 305 so that the barrel 303 is close to the limiting plate 302, thereby reducing the actual length of the feeding barrel unit 3, making it more convenient and safer to enter and exit the opening 203.

[0075] Second, after the feeding barrel unit 3 completes the insertion action on the opening 203, the barrel 303 needs to be lowered and then enter the hot medium water. At this time, the connecting rod 301 can be extended and unfolded on the sliding tube 305.

[0076] It should be noted that:

[0077] 1. The sliding tube 305 and the connecting rod 301 can be configured with the necessary structure for relative sliding, as well as the positioning structure for the sliding start point and the sliding end point, in an existing or specific manner;

[0078] 2. Before the sliding tube 305 is lowered into the barrel 303, the limiting plate 302 has completely covered the fixing ring 204, thus making the alkali addition operation safe and convenient enough.

[0079] The feeding barrel unit 3 also includes a rope hole 306 provided on the limiting plate 302, and a length adjustment rope 307 with one end provided on the sliding tube 305 and the other end passing through the rope hole 306, used for lifting and lowering the sliding tube 305.

[0080] In this embodiment, the rope hole 306 and the length adjustment rope 307 are used together, which is one of the specific methods mentioned above. When the length adjustment rope 307 is unwound, the barrel 303, the sliding tube 305 and the alkali material as a whole can slide down by their own weight, so that all the alkali material can be added with water.

[0081] The length adjustment rope 307 is wound up and fixed, which shortens the actual length of the feeding barrel unit 3. At this time, the feeding barrel unit 3 can be inserted and pulled out at the opening 203. When adding alkali again at the barrel 303, the feeding barrel unit 3 can still maintain this shorter state.

[0082] The feeding barrel unit 3 also includes a gripping rod 308 disposed on the upper surface of the limiting plate 302 and bound with the length adjustment rope 307.

[0083] In this embodiment, the gripping rod 308 is semi-circular or inverted U-shaped, which is the control position for the sliding tube 305 to extend as needed from the connecting rod 301. The operator can lower the bucket 303 and add alkali by untying the length adjustment rope 307 from the gripping rod 308.

[0084] The pumping pipe unit 4 includes a pumping pipe body 401 disposed on the opening 203, a plug 402 disposed at the upper end of the pumping pipe body 401, and a connecting threaded section 403 disposed on the outer ring surface at the upper end of the pumping pipe body 401.

[0085] In this embodiment, the electric heater unit 1, the feeding tank unit 3, and the water pumping pipe unit 4 do not need to be continuously turned on, which is why the plug 402 is provided.

[0086] When the pH value of the internal circulating heat medium water is too low, alkaline material can be added at the feeding tank unit 3, and the water pumping pipe 401 can also partially or completely pump out and replace the heat medium water to avoid the inner surface of the heat exchanger water pipe 12 being severely corroded by the acidic heat medium water.

[0087] The above-mentioned operation of extracting the heat transfer medium water can be performed by inserting an external water pump pipe into the water pumping pipe body 401, or by fitting the external water pump pipe onto or screwing it onto the connecting threaded section 403, ensuring that the external water pump pipe is fully connected to the water pumping pipe body 401.

[0088] In addition, the above-mentioned heat medium water sampling pipe 5 is also provided on the two exposed sections of the heat exchanger water pipe 12. This can be used to sample and test the pH value of the heat medium water, and can also be used as a place to add and replenish the heat medium water. The heat medium water sampling pipe 5 is also equipped with a plug, and its normal state is closed.

[0089] It should also be noted that the heat exchanger water pipe 12 needs to have sufficient thermal conductivity, while the connecting water pipe 13 does not. Therefore, the former is generally made of fluoroplastic, which has general resistance to sulfuric acid dew point corrosion. The connecting water pipe 13 can be made of ND steel, which has outstanding resistance to sulfuric acid dew point corrosion. Therefore, the connecting water pipe 13 does not need to be corrosion resistant.

[0090] The perforated water tank unit 2 also includes at least two transverse rods 205 disposed on the inner side of the tank body 201 and used to reinforce the connecting water pipe 13 and the pumping pipe body 401, respectively.

[0091] In this embodiment, the housing 201 contains two connecting water pipes 13 and one pumping pipe 401. The insertion depth of both the connecting water pipe 13 and the pumping pipe 401 is relatively large, allowing the horizontal rod 205 to reinforce their installation. The connecting water pipe 13 with the larger insertion depth is the pumping pipe, connected to the pumping end of the circulating pump 16.

[0092] On the other hand, the limiting plate 302 is also provided with an internal threaded ring 309, which is screwed to the upper end of the connecting rod 301, so that the connecting rod 301 and the barrel 303 as a whole can be taken out from the opening 203 for use when there is no need to add alkali, thus avoiding the connecting rod 301 and the barrel 303 being submerged in acidic heat transfer medium water for a long time.

[0093] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. An MGGH heat transfer water system with pipeline corrosion protection function, comprising a heat exchanger body (11), heat exchanger water pipes (12), connecting water pipes (13), flue gas inlet pipe (14), flue gas outlet pipe (15), and a circulation pump (16), characterized in that: It also includes an electric heater unit (1) installed on the flue gas inlet pipe (14) and used to increase the outer surface temperature of the heat exchanger water pipe (12) by heating the flue gas; a perforated water tank unit (2) installed on the connecting water pipe (13); a feeding tank unit (3) installed on the perforated water tank unit (2) and used for adding alkali; and a pumping pipe unit (4) installed on the perforated water tank unit (2) and used for replacing the circulating water.

2. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 1, characterized in that: The electric heater unit (1) includes a protruding tube (101) disposed on the flue gas inlet pipe (14) and an electric heating rod (102) inserted into the protruding tube (101), inserted into the flue gas inlet pipe (14), and used to heat the flue gas.

3. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 1, characterized in that: The perforated water tank unit (2) includes a box body (201) into which the connecting water pipe (13) is inserted, a box cover (202) on the box body (201), and two openings (203) on the box cover (202) for installing the feeding barrel unit (3) and the water pumping pipe unit (4), respectively.

4. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 3, characterized in that: The feeding barrel unit (3) includes a connecting rod (301) inserted into the opening (203), a limiting plate (302) disposed on the upper end surface of the connecting rod (301) and used to engage the upper surface of the box cover (202), and a barrel (303) disposed on the connecting rod (301) and used to add alkali material into the box (201).

5. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 4, characterized in that: The perforated water tank unit (2) further includes a fixing ring (204) disposed on the upper surface of the tank cover (202) and having the opening (203) inside; the feeding barrel unit (3) further includes a positioning ring (304) disposed on the limiting plate (302) and used to engage the outer ring surface of the fixing ring (204).

6. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 4, characterized in that: The feeding barrel unit (3) further includes a sliding tube (305) disposed on the barrel (303) and sleeved with the connecting rod (301), and used to reduce the distance between the barrel (303) and the limiting plate (302) when the barrel (303) is inserted and removed.

7. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 6, characterized in that: The feeding barrel unit (3) also includes a rope hole (306) provided on the limiting plate (302) and a length adjustment rope (307) with one end provided on the sliding tube (305) and the other end passing through the rope hole (306) for lifting and lowering the sliding tube (305).

8. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 7, characterized in that: The feeding barrel unit (3) also includes a gripping rod (308) disposed on the upper surface of the limiting plate (302) and bound with the length adjustment rope (307).

9. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 3, characterized in that: The pumping pipe unit (4) includes a pumping pipe body (401) disposed on the opening (203), a plug (402) disposed at the upper end of the pumping pipe body (401), and a connecting threaded section (403) disposed on the outer ring surface at the upper end of the pumping pipe body (401).

10. The MGGH heat transfer fluid system with pipeline corrosion protection function according to claim 9, characterized in that: The perforated water tank unit (2) also includes at least two transverse rods (205) disposed on the inner side of the tank body (201) and used to reinforce the connecting water pipe (13) and the pumping pipe body (401), respectively.

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