CN-224215954-U - Self-cleaning plate-type evaporation air cooler

Abstract

The utility model discloses a self-cleaning plate-type evaporation air cooler, which belongs to the field of evaporation air coolers, wherein a heat exchanger storage tank is arranged at a plate-type heat exchanger, a back flushing pump body is connected to the side wall of the heat exchanger storage tank through a liquid inlet pipe, a liquid delivery pipe is arranged at the other end of the back flushing pump body, electric control valves are arranged on the liquid delivery pipe and the liquid inlet pipe, and back flushing liquid is input into the heat exchanger storage tank through the back flushing pump body. The self-cleaning system realizes the cleaning of the inside of the plate heat exchanger by designing a cleaning liquid storage tank, a liquid inlet pipe and a liquid discharge pipe, ensures no dirt residue and improves the heat exchange efficiency and the equipment performance. The back flushing system is used for injecting back flushing liquid to clean the surface of the heat exchanger by designing a back flushing pump body, a liquid inlet pipe and a liquid delivery pipe, removing dirt and sediment, improving heat exchange efficiency and prolonging service life of equipment. The two systems act together to realize the recycling of the cleaning solution, improve the cleaning efficiency and reduce the waste. The system has high automation degree, flexible valve operation and convenient and efficient cleaning process.

Inventors

• ZHANG DANDAN

Assignees

• 福建立宜信科技股份有限公司

Dates

Publication Date

20260508

Application Date

20250606

Claims (6)

1. 1. The self-cleaning plate-type evaporation air cooler comprises a supporting frame (1), an air cooler assembly (2), a heat exchanger pipeline (4), a heat exchanger valve (5), an interface (12) and a plate-type heat exchanger (13), wherein the air cooler assembly (2) and the plate-type heat exchanger (13) are arranged on the supporting frame (1), the upper end of the plate-type heat exchanger (13) is provided with a plurality of interfaces (12), the heat exchanger pipeline (4) is arranged at the interfaces (12) through the heat exchanger valve (5), and the self-cleaning plate-type evaporation air cooler is characterized in that a heat exchanger storage tank (3) is arranged at the plate-type heat exchanger (13), the side wall of the heat exchanger storage tank (3) is connected with a back flushing pump body (14) through a liquid inlet pipe (16), the other end of the back flushing pump body (14) is provided with a liquid conveying pipe (15), and an electric control valve (17) is arranged on the liquid inlet pipe (16), and back flushing liquid is input into the heat exchanger storage tank (3) through the back flushing pump body (14) to realize cleaning of the surface of the plate-type heat exchanger (13); Two install first three-way pipe (9), second three-way pipe (11) on interface (12) respectively, first three-way pipe (9) are connected with a heat exchanger pipeline (4), feed liquor pipe (7) respectively, and second three-way pipe (11) are connected with another heat exchanger pipeline (4), fluid-discharge tube (18) respectively, the outer end of feed liquor pipe (7), fluid-discharge tube (18) is connected with clean liquid storage pot (6), installs first valve (8), second valve (10) on feed liquor pipe (7), the fluid-discharge tube (18) respectively, through clean liquid storage pot (6), feed liquor pipe (7), fluid-discharge tube (18) realize the clean operation in plate heat exchanger (13).
2. 2. The self-cleaning plate-type evaporation air cooler according to claim 1, wherein the plate-type heat exchanger (13) is arranged in a heat exchanger storage tank (3), a bracket is arranged on the side wall of the plate-type heat exchanger (13), the bracket is arranged on the heat exchanger storage tank (3) through bolts, sealing covers are connected to two ends of the heat exchanger storage tank (3) through flanges and bolts, and sealing rings are arranged at the connecting parts of the sealing covers and the heat exchanger storage tank (3).
3. 3. The self-cleaning plate-type evaporation air cooler according to claim 2, wherein the heat exchanger storage tank (3) and the cleaning liquid storage tank (6) are arranged on the supporting frame (1) through brackets, cleaning liquid is stored in the cleaning liquid storage tank (6), the liquid inlet pipe (7), the liquid outlet pipe (18) and the cleaning liquid storage tank (6) are connected through connecting flanges and bolts, and a branch pipe is arranged on the side wall of the liquid outlet pipe (18) and connected with a water suction pump.
4. 4. The self-cleaning plate-type evaporation air cooler according to claim 3, wherein the first three-way pipe (9) and the second three-way pipe (11) are fixed on the heat exchanger storage tank (3) through bolts, sealing glue is injected into the joint, and the first valve (8) and the second valve (10) are all electric control ball valves.
5. 5. The self-cleaning plate-type evaporation air cooler according to claim 4, wherein the back flushing pump body (14) is arranged on the supporting frame (1) through a bracket, the back flushing pump body (14) is connected with the infusion tube (15) and the liquid inlet tube (16) through a connecting flange and a bolt, the electric control valve (17) is fixed on the infusion tube (15) and the liquid inlet tube (16) through the connecting flange and the bolt, and the electric control valve (17) is an electric control butterfly valve.
6. 6. The self-cleaning plate-type evaporative air cooler of claim 5, wherein a drain pipe is arranged at the lower end of the heat exchanger storage tank (3), a valve is arranged on the drain pipe, and the liquid inlet pipe (16) and the drain pipe are distributed at two ends of the heat exchanger storage tank (3).

Description

Self-cleaning plate-type evaporation air cooler Technical Field The utility model relates to the field of evaporation air coolers, in particular to a self-cleaning plate-type evaporation air cooler. Background The evaporative air cooler is a high-efficiency energy-saving cooling device which combines water cooling and air cooling, heat transfer and mass transfer processes and is also called a closed cooling tower, a closed cooling tower or a closed cooling tower. The working principle is based on the characteristic of water evaporation and heat absorption. In general, the evaporative air cooler places a tubular heat exchanger in the tower, and achieves cooling by heat exchange between flowing air, shower water and circulating water. Specifically, water is continuously sprayed from above, a water film is formed on the outer surface of the heat exchange tube, the water film passes through the tube wall to cool hot fluid in the tube, and then the water film is heated and evaporated and performs heat and mass exchange with flowing air. Air continuously flows through the tube bundle to take away sensible heat and latent heat generated by water film evaporation, so that cooling of hot fluid in the tube is realized. In practical application and maintenance, the evaporative air cooler can indeed improve heat exchange efficiency by adopting the plate heat exchanger, but simultaneously brings about a challenge in terms of cleaning. The surface of the plate heat exchanger is provided with more folds, and the characteristics enhance the heat exchange efficiency and create conditions for dirt deposition. Accumulation of dirt can significantly reduce the heat exchange efficiency of the heat exchanger, resulting in a substantial reduction in energy utilization and an increase in operating costs. In addition, dirt can clog flow channels between the plates, affecting device performance and even leading to unstable system operation. The complex structure of the plate heat exchanger makes maintenance work time consuming and laborious in terms of cleaning and servicing. On the one hand, careful disassembly of the plates is required to avoid damaging critical components such as the sealing gaskets, and on the other hand, thorough removal of all dirt becomes difficult due to the narrow and wrinkled channels between the plates. This not only increases maintenance costs, but may also adversely affect the proper operation of the device. Disclosure of utility model The utility model mainly aims to provide a self-cleaning plate-type evaporation air cooler which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The self-cleaning plate type evaporation air cooler comprises a supporting frame, an air cooler assembly, a heat exchanger pipeline, a heat exchanger valve, interfaces and a plate type heat exchanger, wherein the air cooler assembly and the plate type heat exchanger are arranged on the supporting frame, the upper end of the plate type heat exchanger is provided with a plurality of interfaces, and the heat exchanger pipeline is arranged at the interfaces through the heat exchanger valve; The plate heat exchanger is provided with a heat exchanger storage tank, the side wall of the heat exchanger storage tank is connected with a back flushing pump body through a liquid inlet pipe, the other end of the back flushing pump body is provided with a liquid conveying pipe, the liquid conveying pipe and the liquid inlet pipe are provided with electric control valves, and back flushing liquid is input into the heat exchanger storage tank through the back flushing pump body so as to clean the surface of the plate heat exchanger; the two interfaces are respectively provided with a first three-way pipe and a second three-way pipe, the first three-way pipe is respectively connected with one heat exchanger pipeline and a liquid inlet pipe, the second three-way pipe is respectively connected with the other heat exchanger pipeline and a liquid outlet pipe, the outer ends of the liquid inlet pipe and the liquid outlet pipe are connected with a clean liquid storage tank, and the liquid inlet pipe and the liquid outlet pipe are respectively provided with a first valve and a second valve, so that the cleaning operation in the plate heat exchanger is realized through the clean liquid storage tank, the liquid inlet pipe and the liquid outlet pipe. According to the preferred scheme, the plate heat exchanger is arranged in the heat exchanger storage tank, the side wall of the plate heat exchanger is provided with the bracket, the bracket is arranged on the heat exchanger storage tank through bolts, two ends of the heat exchanger storage tank are connected with the sealing covers through flanges and bolts, and the sealing rings are arranged at the joints of the sealing covers and the heat exchanger storage tank; According to the preferred