Plate heat exchanger mobile cleaning device

Abstract

This utility model discloses a mobile cleaning device for plate heat exchangers, used for cleaning the main body of the plate heat exchanger. The main body of the plate heat exchanger is equipped with plate heat exchanger input pipelines and plate heat exchanger output pipelines, including: a waste liquid extraction pump, a waste liquid tank, a circulating filter assembly, a cleaning liquid tank, a replenishment pump, and a bottom trolley. The waste liquid extraction pump is equipped with a waste liquid inlet pipe and a waste liquid outlet pipe, which are inserted into the waste liquid tank along with the plate heat exchanger output pipeline. The circulating filter assembly includes a lower extraction pipeline, a filter power pump, an upper connecting pipeline, a filter assembly, and a side output pipeline connected in sequence. The replenishment pump draws the cleaning liquid from the cleaning liquid tank into the main body of the plate heat exchanger for cleaning, and then discharges it along the plate heat exchanger output pipeline to the waste liquid extraction pump. The waste liquid extraction pump discharges the waste liquid into the waste liquid tank, and the waste liquid in the waste liquid tank flows back into the cleaning liquid tank after being filtered by the circulating filter assembly for repeated cleaning. Cleaning does not require disassembly of the plate heat exchanger, reducing equipment disassembly and assembly time and reducing pollution emissions.

Description

Technical Field

[0001] This utility model relates to plate heat exchanger cleaning technology, and more particularly to a mobile cleaning device for plate heat exchangers. Background Technology

[0002] Currently, plate heat exchangers are a common and highly efficient heat exchange device, widely used in industries such as industrial applications, HVAC (Heating, Ventilation and Air Conditioning), and food processing. They consist of a series of thin metal plates, with each pair of plates forming an independent flow channel. Hot and cold media flow in opposite or staggered directions within adjacent channels, transferring heat through the plates. A plate heat exchanger is a highly efficient heat exchanger composed of a series of metal plates with a specific corrugated shape stacked together. Thin rectangular channels are formed between the plates, facilitating heat exchange.

[0003] Patent document with application number "CN202411576763.0" discloses a plate heat exchanger cleaning device, comprising: an inlet pipe installed at one end of the plate heat exchanger; an outlet pipe installed at the other end of the plate heat exchanger; and a backwashing structure connected to the outlet pipe, into which a pulsed flushing water flow is injected. The pulsed flushing water flow washes the plate heat exchanger plates through the outlet pipe and then discharges through the inlet pipe. This invention uses the backwashing structure to inject a pulsed flushing water flow into the outlet pipe. Under pressure, the flushing water flow reverses direction from the outlet pipe towards the inlet pipe, flushing the plate heat exchanger plates in a pulsed pressure state. This ensures that the plate heat exchanger plates are thoroughly cleaned, preventing any residue between the plates.

[0004] The aforementioned patent documents, in conjunction with existing technology, reveal the following drawbacks of current mobile cleaning equipment for plate heat exchangers:

[0005] 1. After a period of operation, impurities such as scale will adhere to the heat exchange plates, leading to a decrease in heat exchange efficiency. At this time, the heat exchange plates need to be cleaned. The conventional cleaning process is to remove the fixing bolts between the plate heat exchanger plates, loosen the clamps, separate the stacked plates, use a special cleaning solvent to clean both sides of each plate heat exchanger, and then reassemble them after cleaning.

[0006] 2. The existing cleaning process is labor-intensive, especially for plate heat exchangers with large heat exchange capacity, large size, and many plates. If the plates are not installed properly during the installation process after cleaning, leakage can easily occur, requiring disassembly, adjustment, and reassembly. The waste liquid after cleaning is not easy to collect and is directly discharged, causing pollution. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, this utility model provides a mobile cleaning device for plate heat exchangers, which solves the problem of mobile cleaning devices for plate heat exchangers.

[0008] The first aspect of this utility model is to provide a mobile cleaning device for plate heat exchangers, used for cleaning the main body of the plate heat exchanger. The main body of the plate heat exchanger is provided with a plate heat exchanger input pipeline and a plate heat exchanger output pipeline, including: a waste liquid extraction pump, a waste liquid tank, a circulating filter assembly, a cleaning liquid tank, a replenishment pump, and a bottom trolley. The waste liquid extraction pump is provided with a waste liquid inlet pipe and a waste liquid outlet pipe, and the waste liquid inlet pipe and the plate heat exchanger output pipeline are inserted into the waste liquid tank. The circulating filter assembly includes a lower extraction pipeline, a filter power pump, an upper connecting pipeline, a filter assembly, and a side output pipeline connected in sequence. The lower extraction pipeline is connected to the lower part of the waste liquid tank, and the side output pipeline is connected to the cleaning liquid tank; the replenishment pump is equipped with a replenishment inlet pipe and a replenishment outlet pipe. The replenishment inlet pipe is connected to the cleaning liquid tank, and the replenishment outlet pipe is connected to the plate heat exchanger input pipeline; the replenishment pump draws the cleaning liquid in the cleaning liquid tank into the plate heat exchanger body for cleaning, and then discharges it along the plate heat exchanger output pipeline to the waste liquid extraction pump. The waste liquid extraction pump discharges the waste liquid into the waste liquid tank, and the waste liquid tank is filtered by the circulating filter assembly and then flows back into the cleaning liquid tank for repeated cleaning.

[0009] In a first aspect of this utility model, as a preferred embodiment, both the waste liquid tank and the cleaning liquid tank are rectangular parallelepipeds.

[0010] In a preferred embodiment of the first aspect of this utility model, the lower drawing pipe, the upper connecting pipe, and the side output pipe are L-shaped.

[0011] In a preferred embodiment of the first aspect of this utility model, the mobile cleaning device for plate heat exchangers further includes several hoses, and the mobile cleaning device for plate heat exchangers is connected to the main body of the plate heat exchanger by the hoses.

[0012] In a preferred embodiment of the first aspect of this utility model, the circulating filter assembly is cylindrical.

[0013] In a first aspect of this utility model, as a preferred embodiment, the circulating filter assembly is located on one side of the cleaning liquid tank.

[0014] In a first aspect of this utility model, as a preferred embodiment, the replenishment pump is located at the top of the cleaning fluid tank.

[0015] In a preferred embodiment of the first aspect of this utility model, the mobile cleaning equipment for the plate heat exchanger further includes a control cabinet, which is disposed on the side of the waste liquid tank.

[0016] In a first aspect of this utility model, as a preferred embodiment, the bottom trolley includes a side armrest and a bottom body, with the side armrest disposed on the side of the bottom body.

[0017] In a preferred embodiment of the first aspect of this utility model, a notch is provided on the side of the bottom vehicle body, and a discharge pipe is provided on the waste liquid tank, with the discharge pipe facing the notch.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The waste liquid extraction pump is equipped with a waste liquid inlet pipe and a waste liquid outlet pipe. The waste liquid inlet pipe and the plate heat exchanger output pipe are inserted into the waste liquid tank. The circulating filter assembly includes a lower extraction pipe, a filter power pump, an upper connecting pipe, a filter assembly, and a side output pipe connected in sequence. The lower extraction pipe is connected to the lower part of the waste liquid tank, and the side output pipe is connected to the cleaning liquid tank. The replenishment pump is equipped with a replenishment inlet pipe and a replenishment outlet pipe. The replenishment inlet pipe is connected to the cleaning liquid tank, and the replenishment outlet pipe is connected to the plate heat exchanger input pipe. The replenishment pump draws the cleaning liquid in the cleaning liquid tank into the plate heat exchanger body for cleaning, and then discharges it along the plate heat exchanger output pipe to the waste liquid extraction pump. The waste liquid extraction pump discharges the waste liquid into the waste liquid tank. The waste liquid in the waste liquid tank is filtered by the circulating filter assembly and then flows back into the cleaning liquid tank for repeated cleaning. The device used in this application is used for cleaning. Simultaneously, a waste liquid extraction pump, a waste liquid tank, a circulating filter assembly, a cleaning liquid tank, a replenishment pump, and a bottom trolley work together. Cleaning does not require disassembly of the plate changer, reducing equipment disassembly and assembly time and reducing pollution to the machine room and equipment during the cleaning process. At the same time, the cleaning liquid can be recycled and taken away for professional treatment after use, reducing emission pollution.

[0020] 2. It reduces the professionalism of the cleaning work, can shorten the cleaning cycle, and correspondingly improve the working efficiency of the equipment and the energy conversion efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is another perspective view of the present invention;

[0023] Figure 3 This is another perspective view of the present utility model;

[0024] Figure 4 This is another perspective view of the present utility model;

[0025] Figure 5 This is a partial perspective view of the present invention;

[0026] Figure 6 This is another partial perspective view of the present invention;

[0027] Figure 7 This is another partial perspective view of the present invention.

[0028] In the diagram: 100, Mobile cleaning equipment for plate heat exchangers; 200, Plate heat exchanger body; 201, Plate heat exchanger input pipeline; 202, Plate heat exchanger output pipeline; 10, Waste liquid extraction pump; 11, Waste liquid inlet pipe; 12, Waste liquid outlet pipe; 20, Waste liquid tank; 30, Circulating filter assembly; 31, Lower extraction pipeline; 32, Filter power pump; 33, Upper connecting pipeline; 34, Filter assembly; 35, Side output pipeline; 50, Cleaning liquid tank; 60, Replenishment pump; 61, Replenishment inlet pipe; 62, Replenishment outlet pipe; 70, Control cabinet; 90, Bottom trolley; 91, Side handrail; 92, Bottom vehicle body. Detailed Implementation

[0029] The utility model will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0033] like Figure 1-7 As shown, a mobile cleaning device 100 for plate heat exchangers is used for cleaning the plate heat exchanger body 200. The plate heat exchanger body 200 is provided with a plate heat exchanger input pipeline 201 and a plate heat exchanger output pipeline 202, and includes: a waste liquid extraction pump 10, a waste liquid tank 20, a circulating filter assembly 30, a cleaning liquid tank 50, a replenishment pump 60, and a bottom trolley 90. The waste liquid extraction pump 10 is provided with a waste liquid inlet pipe 11 and a waste liquid outlet pipe 12. The waste liquid inlet pipe 11 is connected to the plate heat exchanger output pipeline 202, and the waste liquid outlet pipe 12 is inserted into the waste liquid tank 20. The circulating filter assembly 30 includes a lower extraction pipeline 31, a filter power pump 32, an upper connecting pipeline 33, a filter assembly 34, and a side output pipe connected in sequence. Pipeline 35, the lower extraction pipeline 31 is connected to the lower part of the waste liquid tank 20, and the side output pipeline 35 is connected to the cleaning liquid tank 50; the replenishment pump 60 is provided with a replenishment inlet pipe 61 and a replenishment outlet pipe 62. The replenishment inlet pipe 61 is connected to the cleaning liquid tank 50, and the replenishment outlet pipe 62 is connected to the plate heat exchanger input pipeline 201; the replenishment pump 60 draws the cleaning liquid in the cleaning liquid tank 50 into the plate heat exchanger body 200 for cleaning, and then discharges it along the plate heat exchanger output pipeline 202 to the waste liquid extraction pump 10. The waste liquid extraction pump 10 discharges into the waste liquid tank 20, and the waste liquid tank 20 is filtered by the circulating filter assembly 30 and then flows back into the cleaning liquid tank 50 for repeated cleaning. The device of this application is used for cleaning. Simultaneously, the waste liquid extraction pump 10, waste liquid tank 20, circulating filter component 30, cleaning liquid tank 50, replenishment pump 60, and bottom trolley 90 work together. Cleaning does not require disassembly of the plate changer, reducing equipment disassembly and assembly time and reducing pollution to the machine room and equipment during the cleaning process. At the same time, the cleaning liquid can be recycled and taken away for professional treatment after use, reducing emission pollution.

[0034] In a first aspect of this utility model, as a preferred embodiment, both the waste liquid tank 20 and the cleaning liquid tank 50 are rectangular parallelepipeds with a large loading capacity.

[0035] In a preferred embodiment of the first aspect of this utility model, the lower drawing pipe 31, the upper connecting pipe 33, and the side output pipe 35 are L-shaped, which facilitates connection.

[0036] In a preferred embodiment of the first aspect of this utility model, the mobile cleaning device for plate heat exchangers further includes several hoses, and the mobile cleaning device 100 for plate heat exchangers is connected to the plate heat exchanger body 200 by the hoses, which further improves the convenience of connection.

[0037] In a preferred embodiment of the first aspect of this utility model, the circulating filter assembly 30 is cylindrical, which is convenient to install.

[0038] In a preferred embodiment of the first aspect of this invention, the circulating filter assembly 30 is located on one side of the cleaning liquid tank 50. The replenishment pump 60 is located on the upper part of the cleaning liquid tank 50. The mobile cleaning equipment for the plate heat exchanger also includes a control cabinet 70, which is located on the side of the waste liquid tank 20 for convenient management.

[0039] In a preferred embodiment of the first aspect of this utility model, the bottom trolley 90 includes a side armrest 91 and a bottom body 92, with the side armrest 91 disposed on the side of the bottom body 92. A notch is provided on the side of the bottom body 92, and the waste liquid tank 20 is provided with a discharge pipe, which faces the notch for easy movement.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A mobile cleaning device for plate heat exchangers, used for cleaning the main body of the plate heat exchanger, wherein the main body of the plate heat exchanger is provided with plate heat exchange inlet pipes and plate heat exchange outlet pipes, characterized in that, include: Waste liquid extraction pump, waste liquid tank, circulating filter assembly, cleaning liquid tank, replenishment pump, bottom trolley; the waste liquid extraction pump is equipped with a waste liquid inlet pipe and a waste liquid outlet pipe, and the waste liquid inlet pipe and the plate heat exchanger output pipeline are inserted into the waste liquid tank. The circulating filtration assembly includes a lower suction pipe, a filtration power pump, an upper connecting pipe, a filtration assembly, and a side output pipe connected in sequence. The lower suction pipe is connected to the lower part of the waste liquid tank, and the side output pipe is connected to the cleaning liquid tank. The replenishment pump is equipped with a replenishment inlet pipe and a replenishment outlet pipe. The replenishment inlet pipe is connected to the cleaning liquid tank, and the replenishment outlet pipe is connected to the plate heat exchanger input pipe. The replenishment pump draws the cleaning fluid from the cleaning fluid tank into the plate heat exchanger body for cleaning, and then discharges it along the plate heat exchanger output pipeline to the waste liquid extraction pump. The waste liquid extraction pump discharges the waste liquid into the waste liquid tank, and after being filtered by the circulating filter assembly, the waste liquid flows back into the cleaning fluid tank for repeated cleaning.

2. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: Both the waste liquid tank and the cleaning liquid tank are rectangular.

3. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The lower extraction pipeline, upper connection pipeline, and side output pipeline are L-shaped.

4. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The mobile cleaning equipment for plate heat exchangers also includes several hoses, which are connected to the main body of the plate heat exchanger.

5. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The circulating filter assembly is cylindrical.

6. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The circulating filter assembly is located on one side of the cleaning fluid tank.

7. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The replenishment pump is located at the top of the cleaning fluid tank.

8. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The mobile cleaning equipment for the plate heat exchanger also includes a control cabinet, which is located on the side of the waste liquid tank.

9. The mobile cleaning equipment for plate heat exchangers as described in claim 1, characterized in that: The bottom trolley includes a side armrest and a bottom body, with the side armrest located on the side of the bottom body.

10. The mobile cleaning equipment for plate heat exchangers as described in claim 9, characterized in that: The bottom of the vehicle body has a notch on its side, and the waste liquid tank is equipped with a discharge pipe, which is directly opposite the notch.

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