CN204319875U - Circulating water filter of electric equipment - Google Patents

Abstract

The utility model discloses an consumer's circulating water filter belongs to water filtration equipment field. The filter includes: the top of the filter barrel is provided with a water outlet pipe, the lower part of the filter barrel is provided with a water inlet pipe, the bottom of the filter barrel is provided with a sewage discharge pipe, and the cross-sectional area of the water inlet pipe is smaller than that of the filter barrel; the filter screen is arranged in the filter vat between the water inlet pipe and the water outlet pipe. Establish the top at the filter vat through the outlet pipe, the lower part at the filter vat is established to the inlet tube, the circulating water is advanced out from the bottom of the filter vat when filtering, and make the cross-sectional area of inlet tube be less than the cross-sectional area of filter vat, slow down the water speed that gets into the filter vat, make heavy matter debris deposit in the circulating water discharge from the blow off pipe of filter vat bottom, and only filter light debris on establishing the filter screen in the filter vat between inlet tube and outlet pipe, effectively reduced the impurity content of hanging on the filter screen, the jam to the filter screen has been reduced, the washing interval of filter has been lengthened greatly, reduce the influence to the consumer operation, the production needs have been satisfied.

Description

Circulating water filter for electrical equipment

technical field

The utility model relates to a circulating water filter, in particular to a circulating water filter used in large electric equipment.

Background technique

Water filter is an indispensable device on the water pipeline. It is usually installed at the inlet of pressure reducing valves, water-cooled distribution cabinets and other equipment. It is widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power , Urban water supply and other fields. Ordinary filters are directly installed on the pipeline, and are composed of shell, stainless steel filter screen, sewage and other parts. When the filter is working, the water to be filtered flows through the filter screen through the water inlet pipe, and enters the pipeline required by the user through the water outlet pipe for process circulation, and the particulate impurities in the water are trapped in the filter screen. With such a continuous cycle, more and more particles will be trapped, and the filtration speed will become slower and slower, while the imported sewage will continue to enter, the filter holes will become smaller and smaller, and the outlet water pressure will become smaller and smaller. When the water pressure is lower than the water pressure required by the user, open the filter, take out the filter screen and clean it, then reinstall it, and the filter will resume its performance.

The circulating water used by users is generally pumped into the circulating water pipeline from the circulating water pool, and then enters the pipeline that needs to use circulating water through the filter for process circulation, and then returns to the circulating water pool through the circulating water return pipe. , The circulating water pipeline is damaged by the entry of tree roots, etc., and a large amount of impurities enter the circulating water. The more impurities in the circulating water, the higher the frequency of filter cleaning. When the filter cleaning interval is less than one production process cycle, it cannot Carry out normal production or have a great impact on production, unable to meet production needs.

Utility model content

Based on the problems existing in the above-mentioned prior art, the utility model provides a circulating water filter for electrical equipment, which can effectively solve the problem that the large amount of impurities hanging on the filter net and the short cleaning interval of the filter affect the operation of electrical equipment. Problems that cannot meet production needs.

In order to solve the above technical problems, the utility model provides a circulating water filter for electrical equipment, including:

A filter barrel, the top of which is provided with an outlet pipe, the bottom is provided with a water inlet pipe, and the bottom is provided with a sewage pipe, and the cross-sectional area of the water inlet pipe is smaller than that of the filter barrel;

The filter screen is arranged in the filter barrel between the water inlet pipe and the water outlet pipe.

The beneficial effects of the utility model are as follows: by setting the water outlet pipe on the top of the filter barrel and the water inlet pipe at the bottom of the filter barrel, when the circulating water is filtered, it enters from the bottom of the filter barrel and exits from the top, and the cross-sectional area of the water inlet pipe is smaller than that of the filter barrel. The cross-sectional area of the barrel slows down the water speed entering the filter barrel, so that the heavy impurities in the circulating water are discharged from the sewage pipe at the bottom of the filter barrel, and the filter net in the filter barrel between the water inlet pipe and the water outlet pipe only Filter light impurities, and most of the impurities are precipitated, only a small part of the impurities hang on the filter net, which effectively reduces the amount of impurities hanging on the filter net, reduces the blockage of the filter net, and greatly lengthens the cleaning interval of the filter , Reduce the impact on the operation of electrical equipment, and meet the production needs.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is the schematic diagram of the circulating water filter of the electrical equipment provided by the utility model embodiment;

Fig. 2 is the filter screen schematic diagram of the filter that the utility model embodiment provides;

Fig. 3 is a schematic diagram of the application of the filter provided by the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the utility model are clearly and completely described below, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

Figure 1 shows a circulating water filter for electrical equipment provided by the embodiment of the present invention. It is a filter that is used on electrical equipment to effectively filter cooling circulating water and can lengthen the filtering and cleaning interval. include:

The filter barrel is provided with an outlet pipe at the top, a water inlet pipe at the bottom, and a sewage discharge pipe at the bottom, and the cross-sectional area of the water inlet pipe is smaller than that of the filter barrel;

The filter screen is arranged in the filter bucket between the water inlet pipe and the water outlet pipe.

In the above-mentioned filter, the filter barrel is composed of a barrel body and a barrel cover fixedly arranged on the barrel body, the water outlet pipe is arranged on the barrel cover and communicates with the barrel body, and the water inlet pipe and the sewage discharge pipe are both arranged on the barrel body and communicated with the barrel body respectively. , the water inlet pipe is arranged on the side wall of the lower part of the barrel.

In the above-mentioned filter, a flushing water pipe is also provided on the filter bucket, and the flushing water pipe is arranged on the bung of the filter bucket, and the bottom of the bung is provided with a water spray interlayer with several through holes evenly distributed. Hundreds of through holes with a diameter of 1 mm are evenly distributed on the top, and the flushing water pipe communicates with the barrel body through a number of through holes on the water spray compartment. By arranging flushing water pipes and evenly distributing a number of through holes, it is convenient to backwash the inside of the filter bucket and the filter.

In the above-mentioned filter, the bottom of the lid is also provided with a protruding limiting portion extending into the upper opening of the barrel body. The protruding limiting portion has the dual functions of positioning the lid on the upper limit of the barrel body and fixing the filter screen in the filter barrel.

In the above-mentioned filter, the bucket body has a conical bottom, and the sewage discharge pipe is located at the tip of the conical bottom, which facilitates the discharge of the precipitated impurities in the filter bucket from the sewage discharge pipe.

In the above-mentioned filter, a filter screen support body is provided in the filter barrel, and the filter screen is arranged on the filter screen support body. The filter screen support body can be an annular support plate arranged on the inner wall of the filter barrel.

As shown in Fig. 2, in the above-mentioned filter, the filter screen 2 is composed of a filter screen 22 sandwiched between two annular splints 21, and the filter screen 22 adopts a filter screen with a filter hole of 80 meshes, and different filter screens can be selected according to water quality requirements.

In the above filters, if both the water inlet pipe and the filter barrel are circular, the diameter of the water inlet pipe is much smaller than the diameter of the filter barrel. Generally, the diameter of the filter barrel can be 10 to 15 times the diameter of the water inlet pipe. For example, if the water inlet pipe is 1.5 inches Steel pipe, the filter barrel can use a barrel body with an inner diameter of 500mm, so that the diameter of the water inlet pipe is much smaller than the diameter of the filter barrel, which can effectively slow down the water speed entering the filter barrel, and cooperate with the outlet pipe on the top and the inlet pipe on the lower part to form a lower inlet. The way of water in and out from above makes the impurities heavier than water in the circulating water settle at the bottom of the filter tank, and the impurities lighter than water will hang on the filter net. Because of the large diameter of the filter tank, the area of the filter screen is much larger than that of the pipeline filter, and Most of the impurities are precipitated, and only a small part of the impurities hang on the filter net, which effectively reduces the amount of impurities hanging on the filter net and greatly lengthens the cleaning interval of the filter.

When the above-mentioned filter is cleaned, the valves on the water inlet pipe and the water outlet pipe of the filter can be closed, the valve of the sewage pipe below the filter and the valve on the flushing water pipe on the bucket cover of the filter can be opened, and the cleaning water can flow from the bucket cover of the filter. It sprays out from the through hole of the water spraying compartment below, washes down the impurities hanging on the filter net and sinking at the bottom of the filter, and is discharged from the sewage pipe at the bottom of the filter barrel. By arranging the flushing water pipe and the multi-hole water spraying interlayer under the bucket cover, the filter can be cleaned without opening the bucket cover of the filter, and the cleaning operation is convenient.

The filter of the present invention will be further described below in conjunction with specific embodiments.

Due to the many impurities in the circulating water, it takes less than an hour after the ordinary filter is installed, and the pressure of the circulating water at the outlet of the filter drops below the required pressure, while the sintering time of the intermediate frequency sintered tungsten and molybdenum material is 15 to 16 hours. The filter cannot operate at all. Without a filter, the circulating water pipe of the power distribution cabinet will become smaller due to blockage during the operation of the intermediate frequency furnace every time. It needs to be purged with high-pressure gas. There is a certain danger in the operation process.

As shown in Figure 3, the filter 30 (filter screen 80 orders) of the embodiment of the present utility model is installed in the pipeline of the high-frequency electric cabinet 31 that is provided with the circulating water return pipeline 310, and the sewage discharge pipe 14 of the filter 30 is connected Sewage pipe 141, continuous water flow for 1 month, filter 14 water outlet pipe 12 water pressure can still reach the required water pressure. In application, the filter can be cleaned once a month, disassembled once a year, thoroughly cleaned and replaced.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (9)

1. a circulating water strainer for electrical equipment, is characterized in that, comprising:

Filter vat, its top is provided with outlet pipe, and bottom is provided with water inlet pipe, and bottom is provided with blow-off pipe, and the cross-sectional area of described water inlet pipe is less than the cross-sectional area of described filter vat;

Screen pack, is arranged in the described filter vat between described water inlet pipe and described outlet pipe.

2. the circulating water strainer of electrical equipment according to claim 1, is characterized in that, described filter vat cross-sectional area is 10 to 15 times of described water inlet pipe cross-sectional area.

3. the circulating water strainer of electrical equipment according to claim 1, is characterized in that, described filter vat is made up of staving and the bung be fixedly installed on staving;

Described outlet pipe is arranged on described bung with in described staving and is communicated with;

Described water inlet pipe and blow-off pipe are all arranged on described staving and are communicated with respectively with in described staving.

4. the circulating water strainer of the electrical equipment according to claim 1 or 3, it is characterized in that, described filter vat is also provided with backwash water pipe, described backwash water pipe is arranged on the bung of described filter vat, be provided with the water spray interlayer of the some through holes of even cloth bottom described bung, the some through hole of described backwash water pipe on described water spray interlayer is communicated with in described staving.

5. the circulating water strainer of electrical equipment according to claim 4, is characterized in that, is also provided with the projection limiting section stretching into described staving upper end open bottom described bung.

6. the circulating water strainer of electrical equipment according to claim 4, is characterized in that, described staving is conical lower portion, and described blow-off pipe is in the most advanced and sophisticated position of described conical lower portion.

7. the circulating water strainer of the electrical equipment according to any one of claims 1 to 3, is characterized in that, is provided with screen support body in described filter vat, and described screen pack is arranged on described screen support body.

8. the circulating water strainer of the electrical equipment according to any one of claims 1 to 3, is characterized in that, described screen pack is made up of sandwiched filter screen in two pieces of annular clamping plate.

9. the circulating water strainer of electrical equipment according to claim 8, is characterized in that, described filter screen adopts filter opening to be 80 object filter screens.