Automatic cleaning device for low-temperature carrier gas evaporation heat exchanger

Abstract

The utility model discloses an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger, which relates to the field of heat exchangers, and adopts the technical scheme that the automatic cleaning device comprises a plate heat exchanger main body and a cleaning water tank, a hot side feeding pipe and a hot side discharging pipe are arranged on one side of the plate heat exchanger body, a hot side feeding valve is arranged on the hot side feeding pipe, and a hot side discharging valve is arranged on the hot side discharging pipe. The plate type heat exchanger cleaning device is convenient to operate, the interior of the plate type heat exchanger can be quickly and effectively cleaned without disassembling the plate type heat exchanger main body, and the cleaning efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger. Background Art

[0002] After many macromolecular organic substances are concentrated under high temperature and vacuum, their viscosity increases; and calcium and magnesium ions in wastewater are also prone to scaling under high temperature conditions; dissolved inorganic salts will form crystals on the contact surface of the equipment after supersaturation; these reasons often cause scaling and clogging of the low-temperature carrier gas evaporation supporting heat exchanger, affecting the heat exchange efficiency, and ultimately greatly weakening the evaporation concentration effect and even affecting the normal operation of the process. The cleaning of the low-temperature carrier gas evaporation supporting heat exchanger usually requires the entire heat exchanger to be disassembled for cleaning, causing the entire process to stop running and affecting normal production. Therefore, it is of great significance to set up an automatic cleaning device for the low-temperature carrier gas evaporation heat exchanger to reduce the manpower and material costs of disassembling and cleaning the heat exchanger without affecting the normal operation of the overall process, and reduce the adverse effects of the low-temperature carrier gas evaporation shutdown on production.

[0003] Therefore, it is necessary to invent an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger. Summary of the invention

[0004] To this end, the utility model provides an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger to solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger, comprising a plate heat exchanger body and a cleaning water tank, a hot side feed pipe and a hot side discharge pipe are arranged on one side of the plate heat exchanger body, a cold side feed pipe and a cold side discharge pipe are arranged on the other side of the plate heat exchanger body, a hot side feed valve is arranged on the hot side feed pipe, a hot side discharge valve is arranged on the hot side discharge pipe, a cold side feed valve is arranged on the cold side feed pipe, and a cold side discharge valve is arranged on the cold side discharge pipe. Both the hot side feed pipe and the cold side discharge pipe are connected to a water inlet pipe, a water inlet valve is arranged on the water inlet pipe, a cleaning water pump is connected to the end of the water inlet pipe, and the cleaning water pump is installed inside the cleaning water tank. One end of the cleaning water tank is connected to a water outlet pipe, one end of the water outlet pipe is connected to the hot side discharge pipe and the cold side feed pipe, and a water outlet valve is arranged on the water outlet pipe.

[0006] Preferably, the cleaning water tank is made of corrosion-resistant material.

[0007] Preferably, the cleaning water tank is made of stainless steel.

[0008] The beneficial effects of the utility model are:

[0009] The utility model is provided with a cleaning water tank, a cleaning water pump and other parts. When cleaning, first add a sufficient amount of water and a corresponding cleaning agent into the cleaning water tank, then close the hot side feed valve, the hot side discharge valve, the cold side feed valve and the cold side discharge valve, and then start the cleaning water pump. The cleaning water pump conveys the cleaning liquid to the inside of the plate heat exchanger body through the water inlet pipe. At this time, the high-pressure cleaning liquid will continuously spray and flush to complete the cleaning work. At the same time, the cleaning liquid after flushing will also flow back to the inside of the cleaning water tank through the water outlet pipe, which is convenient for circulating flushing. The utility model is easy to operate and can quickly and effectively clean the inside of the plate heat exchanger without disassembling the plate heat exchanger body, thereby greatly improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0011] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0012] Figure 1 This is a schematic diagram of the overall structure provided by the utility model.

[0013] In the figure: 1 plate heat exchanger body, 2 cleaning water tank, 3 hot side feed pipe, 4 hot side discharge pipe, 5 cold side feed pipe, 6 cold side discharge pipe, 7 hot side feed valve, 8 hot side discharge valve, 9 cold side feed valve, 10 cold side discharge valve, 11 water inlet pipe, 12 water inlet valve, 13 cleaning water pump, 14 water outlet pipe, 15 water outlet valve. DETAILED DESCRIPTION

[0014] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0015] See attached Figure 1The utility model provides an automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger, comprising a plate heat exchanger body 1 and a cleaning water tank 2, a hot side feed pipe 3 and a hot side discharge pipe 4 are arranged on one side of the plate heat exchanger body 1, a cold side feed pipe 5 and a cold side discharge pipe 6 are arranged on the other side of the plate heat exchanger body 1, a hot side feed valve 7 is arranged on the hot side feed pipe 3, a hot side discharge valve 8 is arranged on the hot side discharge pipe 4, and a cold side feed valve 9 is arranged on the cold side feed pipe 5 , a cold side discharge pipe 6 is provided with a cold side discharge valve 10, a water inlet pipe 11 is connected to both the hot side feed pipe 3 and the cold side discharge pipe 6, a water inlet valve 12 is provided on the water inlet pipe 11, a cleaning water pump 13 is connected to the end of the water inlet pipe 11, the cleaning water pump 13 is installed inside the cleaning water tank 2, one end of the cleaning water tank 2 is connected with a water outlet pipe 14, one end of the water outlet pipe 14 is connected to the hot side discharge pipe 4 and the cold side feed pipe 5, and a water outlet valve 15 is provided on the water outlet pipe 14;

[0016] Among them, in order to achieve the purpose of corrosion prevention, the present device adopts the following technical solutions: the cleaning water tank 2 is made of corrosion-resistant material; the cleaning water tank 2 is made of stainless steel material; stainless steel material has good corrosion resistance, ensuring the service life of the cleaning water tank 2.

[0017] The use process of the utility model is as follows: when using the utility model, the hot side feed valve 7 and the hot side discharge valve 8 respectively control the opening and closing of the hot side feed pipe 3 and the hot side discharge pipe 4, and the cold side feed valve 9 and the cold side discharge valve 10 respectively control the opening and closing of the cold side feed pipe 5 and the cold side discharge pipe 6. When it is necessary to clean the plate heat exchanger body 1, first add sufficient water and corresponding cleaning agent to the cleaning water tank 2, and then close the hot side feed valve 7, the hot side discharge valve 8 and the cold side feed valve 10. The valve 9 and the cold side discharge valve 10 are all closed, and then the cleaning water pump 13 is started. The cleaning water pump 13 conveys the cleaning liquid to the inside of the plate heat exchanger body 1 through the water inlet pipe 11. At this time, the high-pressure cleaning liquid will continuously spray and rinse to complete the cleaning work. At the same time, the cleaning liquid after rinsing will also flow back to the inside of the cleaning water tank 2 through the water outlet pipe 14, which is convenient for circulating flushing. The utility model is easy to operate and can quickly and effectively clean the inside of the plate heat exchanger body 1 without disassembling it, thereby greatly improving the cleaning efficiency.

[0018] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. An automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger, comprising a plate heat exchanger body (1) and a cleaning water tank (2), characterized in that: A hot side feed pipe (3) and a hot side discharge pipe (4) are provided on one side of the plate heat exchanger body (1), and a cold side feed pipe (5) and a cold side discharge pipe (6) are provided on the other side of the plate heat exchanger body (1). A hot side feed valve (7) is provided on the hot side feed pipe (3), and a hot side discharge valve (8) is provided on the hot side discharge pipe (4). A cold side feed valve (9) is provided on the cold side feed pipe (5), and a cold side discharge valve (10) is provided on the cold side discharge pipe (6). The feed pipe (3) and the cold side discharge pipe (6) are both connected to a water inlet pipe (11), and a water inlet valve (12) is provided on the water inlet pipe (11). The end of the water inlet pipe (11) is connected to a cleaning water pump (13), and the cleaning water pump (13) is installed inside a cleaning water tank (2). One end of the cleaning water tank (2) is connected to a water outlet pipe (14), and one end of the water outlet pipe (14) is connected to the hot side discharge pipe (4) and the cold side feed pipe (5), and a water outlet valve (15) is provided on the water outlet pipe (14).

2. The automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger according to claim 1, characterized in that: The cleaning water tank (2) is made of corrosion-resistant material.

3. The automatic cleaning device for a low-temperature carrier gas evaporation heat exchanger according to claim 2, characterized in that: The cleaning water tank (2) is made of stainless steel.

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