CN205228267U - Plate heat exchanger belt cleaning device - Google Patents

Abstract

The utility model discloses a plate heat exchanger belt cleaning device, package rubbing board formula heat exchanger, circulating pump and washing pond, last inlet tube, outlet pipe, inlet pipe and the discharging pipe of being provided with of plate heat exchanger, rinsing the drain pipe in pond and connecting plate heat exchanger's inlet tube through the circulating pump through rinsing the pipeline, the feed liquor pipe that rinses the pond is connected to plate heat exchanger's outlet pipe through backflow pipeline. The utility model discloses an add one and wash mouthful on plate heat exchanger's inlet tube, can reach the effect of getting rid of the slab dirt with the washing liquid is direct to the slab washing that circulates, need not detaching board piece again, saved the manpower, the detaching board piece washd the installation again and targets in place and generally need 16 hours in the past, still washd not including the production line and disinfected, only needed to accomplish in 5 hours now to need not to wash and disinfect, avoid nonconforming product's appearance, shortened the scavenging period greatly, improved work efficiency.

Description

A plate heat exchanger cleaning device

technical field

The utility model belongs to the field of food processing equipment, in particular to a cleaning device for a plate heat exchanger.

Background technique

Many plate heat exchangers are used in the fructose production process. After a period of operation, the plates are seriously fouled, and the cooling efficiency of the sugar solution is significantly reduced. It is necessary to stop the production line and disassemble the plates for cleaning. After the cleaning is completed It is assembled again and used again after sterilizing, which seriously affects the production efficiency and increases the labor intensity.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a plate heat exchanger cleaning device, which can remove the dirt in the plates without disassembling the plates, and does not require cleaning and sterilization, which reduces labor intensity and improves efficiency.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a plate heat exchanger cleaning device, including a plate heat exchanger, a circulation pump and a cleaning pool, and the plate heat exchanger is provided with a water inlet pipe and a water outlet pipe , feed pipe and discharge pipe, the liquid outlet pipe of the cleaning tank is connected to the water inlet pipe of the plate heat exchanger through the cleaning pipeline through the circulation pump, and the water outlet pipe of the plate heat exchanger is connected to the liquid inlet pipe of the cleaning tank through the return pipe.

The pipelines among the cleaning pool, the circulation pump and the plate heat exchanger are all connected together by flanges.

On-off valves are provided on the feed pipe, discharge pipe, water inlet pipe and water outlet pipe of the plate heat exchanger.

The circulation pump is connected to the inner side of the on-off valve on the water inlet pipe of the plate heat exchanger through the cleaning pipeline.

The diameter of the cleaning pipe is 40-80 mm, which is used for plate heat exchangers with different heat exchange areas. The plate heat exchanger with a small heat exchange area uses a cleaning pipe with a diameter of 40 mm, and the plate heat exchanger with a large heat exchange area uses Cleaning pipe with a diameter of 80mm.

In order to avoid the corrosion of the chemical cleaning liquid, the cleaning pipeline is made of stainless steel 316L, which can not only avoid corrosion, but also avoid scratches to the plates.

The beneficial effects of the utility model are: the utility model adds a cleaning port to the water inlet pipe of the plate heat exchanger, and uses the cleaning liquid to directly cycle and clean the plates, so as to achieve the effect of removing the dirt on the plates without disassembling the plates. In the past, it usually took 16 hours to disassemble the plates for cleaning and then install them in place, not including the cleaning and sterilization of the production line. Now it only takes 5 hours to complete, and there is no need for cleaning and sterilization, which avoids the appearance of unqualified products and greatly shortens the production time. Reduced cleaning time and improved work efficiency.

Description of drawings

Fig. 1 is a structural representation of the utility model.

In the figure: 1-cleaning tank, 2-outlet pipe, 3-cleaning pipe, 4-flange, 5-circulating pump, 6-switching valve, 7-feeding pipe, 8-inlet pipe, 9-plate heat exchange Device, 10-feed pipe, 11-water outlet pipe, 12-return pipe, 13-liquid inlet pipe.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in the figure: a plate heat exchanger cleaning device, including a plate heat exchanger 9, a circulation pump 5 and a cleaning pool 1, the plate heat exchanger 9 is provided with an inlet pipe 8, an outlet pipe 11, and a feed pipe 7 and discharge pipe 20, the liquid discharge pipe 2 of the cleaning tank 1 is connected to the water inlet pipe 8 of the plate heat exchanger 9 through the circulation pump 5 through the cleaning pipe 3, and the water outlet pipe 11 of the plate heat exchanger 9 passes through the return pipe 12 Connect the liquid inlet pipe 13 of the cleaning tank 1. The pipelines between the cleaning tank 1 , the circulation pump 5 and the plate heat exchanger 9 are all connected together by flanges 4 . On-off valves 6 are provided on the feed pipe 7 , discharge pipe 10 , water inlet pipe 8 and water outlet pipe 11 of the plate heat exchanger 9 . The circulation pump 5 is connected to the inner side of the switch valve on the water inlet pipe 8 of the plate heat exchanger 9 through the cleaning pipeline 3 .

The diameter of the cleaning pipeline 3 is 40-80 mm, which is used for plate heat exchangers 9 with different heat exchange areas. The plate heat exchanger with a small heat exchange area uses a cleaning pipe with a diameter of 40mm, and the plate heat exchanger with a large heat exchange area uses a cleaning pipe with a diameter of 80mm.

In order to avoid the corrosion of the chemical cleaning liquid, the cleaning pipeline 3 is made of stainless steel 316L, which can not only avoid corrosion, but also avoid scratches to the plates.

When cleaning, first open the switch valve on the water inlet pipe of the plate heat exchanger, close the switch valves on the water outlet pipe, feed pipe and discharge pipe, and close the switch valve on the water inlet pipe when the plate heat exchanger is filled with cleaning liquid. , Soak the plates with 10% nitric acid solution; after the dirt on the plates softens, open the on-off valves on the water inlet and outlet pipes, and rinse the plates with 4-6% nitric acid solution for 3 hours. After the sugar solution is reduced in some sections, it is not necessary to close the on-off valves on the feed pipe and the discharge pipe during cleaning, and the heat exchange effect can also be achieved by using the cleaning liquid for heat exchange.

The above descriptions are only preferred embodiments of the present utility model, and are not limitations of the present utility model. Changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present utility model should also belong to the protection scope of the present utility model.

Claims (6)

1. A plate heat exchanger cleaning device, comprising a plate heat exchanger, a circulating pump and a cleaning tank, characterized in that: the plate heat exchanger is provided with a water inlet pipe, an outlet pipe, a feed pipe and a discharge pipe, The liquid outlet pipe of the cleaning tank is connected to the water inlet pipe of the plate heat exchanger through the circulation pump through the cleaning pipe, and the water outlet pipe of the plate heat exchanger is connected to the liquid inlet pipe of the cleaning tank through the return pipe. 2. The plate heat exchanger cleaning device according to claim 1, characterized in that: the pipes between the cleaning pool, the circulating pump and the plate heat exchanger are all connected by flanges. 3. The plate heat exchanger cleaning device according to claim 1 or 2, characterized in that: the feed pipe, discharge pipe, water inlet pipe and water outlet pipe of the plate heat exchanger are provided with on-off valves. 4. The plate heat exchanger cleaning device according to claim 1 or 2, characterized in that the circulation pump is connected to the inner side of the switch valve on the water inlet pipe of the plate heat exchanger through a cleaning pipeline. 5. The plate heat exchanger cleaning device according to claim 1 or 2, characterized in that: the diameter of the cleaning pipeline is 40-80 mm. 6. The plate heat exchanger cleaning device according to claim 1 or 2, characterized in that: the cleaning pipeline is made of stainless steel 316L.