Heat exchanger cleaning device

Abstract

The utility model belongs to the technical field of heat exchanger cleaning, and discloses a heat exchanger cleaning device which comprises a box body, a circulating system and an acidity meter, acid liquid is contained in the box body, the circulating system is connected with the box body and a heat exchanger and can enable the acid liquid in the box body to enter the heat exchanger in a circulating mode, and the acidity meter comprises a probe and a display screen. The probe is arranged in the box body and used for detecting the concentration of the acid liquid in the box body, and the display screen is used for displaying the real-time acid concentration of the acid liquid. According to the heat exchanger cleaning device provided by the utility model, the acid liquid is used for circularly cleaning the heat exchanger, so that the heat exchanger is prevented from being disassembled and assembled, and the working difficulty of workers is reduced; it is ensured that the acid liquid can chemically react with scale every time the acid liquid enters and exits the heat exchanger, effective cleaning is achieved every time the acid liquid enters and exits the heat exchanger, and the cleaning efficiency of the heat exchanger is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger cleaning technology, and in particular to a heat exchanger cleaning device. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. Most heat exchangers are water-based heat exchange systems. After prolonged use, a large amount of scale will form inside the heat exchanger. Scale will reduce the cross-sectional area of ​​the channels inside the heat exchanger or even block them, resulting in a decrease in the heat exchange efficiency of the water heater. Therefore, it is necessary to clean the heat exchanger regularly to ensure its normal use.

[0003] There is a need to disassemble the heat exchanger and clean its interior, but disassembling and installing the heat exchanger is very difficult, resulting in low cleaning efficiency.

[0004] Therefore, there is an urgent need for a heat exchanger cleaning device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a heat exchanger cleaning device that can solve the problem that the disassembly and installation of heat exchangers are very difficult when cleaning existing heat exchangers, resulting in low cleaning efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A heat exchanger cleaning device is configured to clean scale inside a heat exchanger, the heat exchanger cleaning device comprising:

[0008] A box containing an acidic liquid;

[0009] A circulation system connecting the housing and the heat exchanger, the circulation system enabling acidic liquid inside the housing to circulate into the heat exchanger;

[0010] A pH meter, comprising a probe and a display screen, wherein the probe is placed inside the chamber for detecting the concentration of acidic liquid inside the chamber, and the display screen is used to display the real-time acidity value of the acidic liquid.

[0011] As a preferred technical solution for the heat exchanger cleaning device, the circulation system includes a first pipe, a second pipe, a first magnetic pump, and a second magnetic pump. The first magnetic pump and the first pipe are connected to the liquid outlet of the housing and the liquid inlet of the heat exchanger, and the second magnetic pump and the second pipe are connected to the liquid outlet of the heat exchanger and the liquid inlet of the housing.

[0012] As a preferred technical solution for the heat exchanger cleaning device, the circulation system further includes an explosion-proof socket and a start / stop switch. The plugs of the first magnetic pump and the second magnetic pump are both plugged into the explosion-proof socket, and the start / stop switch is electrically connected to the explosion-proof socket.

[0013] As a preferred technical solution for the heat exchanger cleaning device, the heat exchanger cleaning device further includes a trolley, which includes a platform and a pull rod, and the housing, the circulation system and the pH meter are all placed on the platform.

[0014] As a preferred technical solution for the heat exchanger cleaning device, the start / stop switch is placed on the pull rod.

[0015] As a preferred technical solution for the heat exchanger cleaning device, a flow regulating valve is provided on the first pipeline.

[0016] As a preferred technical solution for the heat exchanger cleaning device, the top surface of the box is provided with a liquid injection port; and the bottom surface of the box is provided with a drain valve.

[0017] As a preferred technical solution for the heat exchanger cleaning device, the heat exchanger cleaning device also includes a replenishment tank, the outlet of which is connected to the injection port via a third pipe and a third magnetic pump.

[0018] As a preferred technical solution for the heat exchanger cleaning device, the housing is made of stainless steel.

[0019] As a preferred technical solution for the heat exchanger cleaning device, the acidic liquid is an oxalic acid solution.

[0020] The beneficial effects of this utility model are as follows:

[0021] The heat exchanger cleaning device provided by this utility model involves placing an acidic liquid inside the tank and circulating it in and out of the heat exchanger through a circulation system. This allows the acidic liquid to react with the scale inside the heat exchanger, thus cleaning the scale. A pH meter is installed to monitor the concentration of the acidic liquid circulating in and out of the heat exchanger in real time. When the concentration decreases, the acidic liquid is promptly replenished to maintain a concentration sufficient to react with the scale. This ensures that the acidic liquid reacts chemically with the scale every time it enters and exits the heat exchanger, achieving effective cleaning with each cycle and improving the cleaning efficiency of the heat exchanger. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the heat exchanger cleaning device provided by this utility model.

[0023] In the picture:

[0024] 1. Box body; 11. Liquid inlet; 12. Drain valve;

[0025] 2. Circulation system; 21. First pipeline; 211. Flow regulating valve; 22. First magnetic pump; 23. Explosion-proof socket; 24. Start / stop switch;

[0026] 3. pH meter; 31. Probe; 32. Display screen; 4. Trolley; 41. Cart platform; 42. Pull rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figure 1As shown in the illustration, this embodiment provides a heat exchanger cleaning device for cleaning scale inside a heat exchanger. The heat exchanger cleaning device includes a housing 1, a circulation system 2, and a pH meter 3. The housing 1 contains an acidic liquid. The circulation system 2 connects the housing 1 and the heat exchanger, and allows the acidic liquid in the housing 1 to circulate back into the heat exchanger. When the acidic liquid enters the heat exchanger, it reacts chemically with the scale inside, effectively dissolving the scale. With the repeated circulation of the acidic liquid in and out of the heat exchanger, the reacted scale is carried away, achieving the purpose of cleaning the scale in the heat exchanger.

[0032] The pH meter 3 includes a probe 31 and a display screen 32. The probe 31 is placed inside the housing 1 to detect the concentration of acidic liquid inside the housing 1. The display screen 32 displays the real-time pH value of the acidic liquid. When the acidic liquid circulates into the heat exchanger and reacts chemically with the scale, and after several cycles of entering and exiting the heat exchanger, the concentration of the acidic liquid will decrease. After the concentration of the acidic liquid decreases, subsequent circulation and rinsing cannot react chemically with the scale, and effective cleaning cannot be achieved. By setting up the pH meter 3, the operator can monitor the acid concentration of the acidic liquid circulating in and out of the heat exchanger in real time. When the acid concentration of the acidic liquid is too low, the operator can add acidic liquid to the housing 1 to ensure that the acid concentration of the acidic liquid in the housing 1 meets the standard for reacting with the scale. This ensures that the acidic liquid can react chemically with the scale every time it enters and exits the heat exchanger, achieving effective cleaning with each entry and exit of the acidic liquid and improving the cleaning efficiency of the heat exchanger.

[0033] Among them, the pH meter 3 is commonly used in laboratories, industrial production, environmental monitoring and other fields. It displays the corresponding acidity value by measuring the change in hydrogen ion concentration in the liquid.

[0034] For example, the circulation system 2 includes a first pipe 21, a second pipe (not shown in the figure), a first magnetic pump 22, and a second magnetic pump (not shown in the figure). The first magnetic pump 22 and the first pipe 21 connect the liquid outlet of the housing 1 and the liquid inlet of the heat exchanger. The second magnetic pump and the second pipe connect the liquid outlet of the heat exchanger and the liquid inlet of the housing 1. By turning on the first magnetic pump 22 and the second magnetic pump, the acidic liquid in the housing 1 can circulate in and out of the heat exchanger. Specifically, the first magnetic pump 22 and the first pipe 21 are used to draw the acidic liquid in the housing 1 into the heat exchanger, and the second magnetic pump and the second pipe are used to draw the reacted acidic liquid in the heat exchanger back into the housing 1, thus realizing the circulation of the acidic liquid in and out of the heat exchanger. Magnetic pumps are common components in the industrial field and will not be described in detail here.

[0035] Furthermore, the circulation system 2 also includes an explosion-proof socket 23 and a start / stop switch 24. The plugs of the first magnetic pump 22 and the second magnetic pump are both connected to the explosion-proof socket 23, and the start / stop switch 24 is electrically connected to the explosion-proof socket 23. Because the operating environment of heat exchangers is relatively complex, when heat exchangers are used in chemical, metallurgical, and power industries, a large amount of oil may accumulate around them. The explosion-proof socket 23 prevents sparks from being generated by the first and second magnetic pumps during start-up and shutdown, further improving the safety of the heat exchanger cleaning device. The explosion-proof socket 23 is a standard component in industrial applications and will not be discussed further here.

[0036] In this embodiment, the heat exchanger cleaning device also includes a trolley 4, which comprises a platform 41 and a pull rod 42. The housing 1, the circulation system 2, and the pH meter 3 are all placed on the platform 41. When a heat exchanger needs cleaning, the operator can push the trolley 4 to the corresponding heat exchanger for targeted cleaning, improving the flexibility of the heat exchanger cleaning device. Preferably, the start / stop switch 24 is located on the pull rod 42, making it easier for the operator to operate the start / stop switch 24 and improving the rationality of the heat exchanger cleaning device design.

[0037] In this embodiment, the first pipe 21 is equipped with a flow regulating valve 211, so that the operator can adjust the flow rate of acidic liquid entering the heat exchanger according to the amount of scale generated in the heat exchanger and the specifications of the heat exchanger, thereby further improving the flexibility of the heat exchanger cleaning device.

[0038] In this embodiment, the top surface of the housing 1 is provided with a liquid injection port 11, which facilitates the replenishment of acidic liquid into the housing 1 by the staff. A drain valve 12 is provided on the bottom surface of the core. After the heat exchanger cleaning work is completed, the staff can quickly drain the acidic liquid in the housing 1 by opening the drain valve 12, thereby improving the convenience of using the heat exchanger cleaning device.

[0039] Furthermore, the heat exchanger cleaning device also includes a replenishment tank, wherein the outlet of the replenishment tank is connected to the injection port 11 of the tank body 1 through the first pipe 21 and the third magnetic pump. By controlling the third magnetic pump, the acidic liquid that has not undergone chemical reaction in the replenishment tank can be replenished into the tank body 1, thereby increasing the acidity value of the acidic liquid in the tank body 1. This replaces the manual addition method by the staff to replenish the acidic liquid into the tank body 1, further improving the convenience of using the heat exchanger cleaning device.

[0040] In this embodiment, the inner casing 1 is made of stainless steel, which avoids corrosion of the casing 1 by acidic liquids and ensures the service life of the casing 1. Furthermore, the first pipe 21, the second pipe, and the third pipe are all stainless steel flexible hoses.

[0041] In this embodiment, the acidic liquid is an oxalic acid solution. Oxalic acid solution is reasonably priced, enabling rapid cleaning of the heat exchanger while ensuring that the cleaning cost is kept within budget.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heat exchanger cleaning device configured to clean scale inside a heat exchanger, characterized by, The heat exchanger cleaning device includes: Box (1), the contents of which contain an acidic liquid; A circulation system (2) is provided, which connects the housing (1) and the heat exchanger, and enables the acidic liquid in the housing (1) to circulate into the heat exchanger. Acidity meter (3) includes a probe (31) and a display screen (32). The probe (31) is placed inside the housing (1) to detect the concentration of acidic liquid inside the housing (1). The display screen (32) is used to display the real-time acidity value of the acidic liquid.

2. The heat exchanger cleaning apparatus of claim 1, wherein The circulation system (2) includes a first pipe (21), a second pipe, a first magnetic pump (22), and a second magnetic pump. The first magnetic pump (22) and the first pipe (21) are connected to the liquid outlet of the housing (1) and the liquid inlet of the heat exchanger. The second magnetic pump and the second pipe are connected to the liquid outlet of the heat exchanger and the liquid inlet of the housing (1).

3. The heat exchanger cleaning apparatus of claim 2, wherein, The circulation system (2) also includes an explosion-proof socket (23) and a start / stop switch (24). The plugs of the first magnetic pump (22) and the second magnetic pump are both plugged into the explosion-proof socket (23), and the start / stop switch (24) is electrically connected to the explosion-proof socket (23).

4. The heat exchanger cleaning apparatus of claim 3, wherein The heat exchanger cleaning device also includes a trolley (4), which includes a platform (41) and a pull rod (42). The housing (1), the circulation system (2) and the pH meter (3) are all placed on the platform (41).

5. The heat exchanger cleaning apparatus of claim 4, wherein, The start / stop switch (24) is placed on the pull rod (42).

6. The heat exchanger cleaning apparatus of claim 2, wherein, The first pipe (21) is equipped with a flow regulating valve (211).

7. The heat exchanger cleaning apparatus of claim 1, wherein, The top surface of the box (1) is provided with a liquid injection port (11); and the bottom surface of the box (1) is provided with a liquid drain valve (12).

8. The heat exchanger cleaning apparatus of claim 7, wherein, The heat exchanger cleaning device also includes a replenishment tank, the outlet of which is connected to the injection port (11) via a third pipe and a third magnetic pump.

9. The heat exchanger cleaning device according to any one of claims 1-8, characterized in that The enclosure (1) is made of stainless steel.

10. The heat exchanger cleaning device according to any one of claims 1-8, characterized in that The acidic liquid is an oxalic acid solution.

Images