CN221732626U - Elbow filter - Google Patents

Abstract

The utility model discloses an elbow filter, which comprises an elbow body, one end of which is a water inlet, and the other end of which is a water outlet. An opening is provided on the elbow body, and a sewage storage pipe is connected to the opening. A filter screen is detachably provided in the sewage storage pipe, and one end of the filter screen is an inclined end, which abuts against the inner wall of the elbow body. The filter screen filters water coming in from the water inlet. The elbow filter provided by the utility model is connected to a sewage storage pipe at the opening of the elbow body, and a filter screen is detachably provided in the sewage storage pipe. One end of the filter screen is an inclined end, which abuts against the inner wall of the elbow body. The filter screen filters water coming in from the water inlet, thereby reducing the resistance inside the pipe network, which not only improves the filtering effect, but also achieves the energy-saving effect.

Description

Elbow filter

Technical Field

The utility model belongs to the technical field of pipeline filtering, and in particular relates to an elbow filter.

Background Art

In northern China, winter heating is mainly provided by centralized heating, and the main medium of centralized heating is hot water. Water circulates in the primary and secondary heating pipe networks. Due to the uneven water quality in different regions and the continuous operation of the entire heating season, the corrosion and aging of the pipes will gradually increase the impurities in the hot water in the pipes. Impurities in the water will adhere to the heat exchange surface of the heat exchanger, increase the heat exchange resistance, reduce the heat exchange performance, and even block the heat exchanger, causing the heat exchanger to leak and causing pipe network safety problems. Therefore, installing filters on the heating pipes is an effective means to ensure the quality of hot water in the pipe network.

Existing pipe filters, such as Y-type pipe filters, need to be installed on straight pipe sections. Their own structure will form an elbow to produce local resistance. Each filter will additionally increase the resistance of the pipe network, thereby increasing the power of the pump that transports hot water through the pipe network, which is not conducive to energy saving.

Therefore, it is urgent to design an elbow filter to solve the problem that the existing pipe filter mentioned above will increase the resistance of the network pipe and is not conducive to energy saving.

Utility Model Content

In order to solve the technical problem mentioned in the background technology that the existing pipeline filter will additionally increase the resistance of the network pipe and is not conducive to energy saving, an elbow filter is provided to solve the problem of the elbow filter.

To achieve the above purpose, the specific technical solution of the elbow filter of the utility model is as follows:

An elbow filter comprises an elbow body, one end of the elbow body being a water inlet and the other end being a water outlet. An opening is provided on the elbow body, a sewage storage pipe is connected to the opening, a filter screen is detachably provided in the sewage storage pipe, one end of the filter screen is an inclined end, the inclined end abuts against the inner wall of the elbow body, and the filter screen filters the water coming in from the water inlet.

Furthermore, the inclined end includes a first inclined portion and a second inclined portion, the first inclined portion and the second inclined portion are connected in an arc shape, the first inclined portion crosses the curved pipe body and abuts against the inner wall of the curved pipe body, and the second inclined portion is arranged on the inner wall of the curved pipe body opening.

Furthermore, a first inclined surface is arranged on the first inclined portion, and the first inclined surface abuts against the inner wall of the curved pipe body; a second inclined surface is arranged on the second inclined portion, and the second inclined surface is arranged on the inner wall of the curved pipe body opening.

Furthermore, the first inclined surface extends obliquely toward the outside of the filter net along one end of the filter net, and the second inclined surface extends obliquely toward the inside of the filter net along one end of the filter net.

Furthermore, the pipe diameters of the elbow body and the sewage storage pipe are the same.

Furthermore, the distance between the central axis of the sewage storage pipe and the outer surface of the elbow body is L1, the diameter of the elbow body is D1, the arc radius of the elbow body is R, and the relationship between L1, D1 and R is 0<L1<R+D1/2.

Furthermore, the greater the flow rate of the water inlet, the smaller the distance L1 between the central axis of the sewage storage pipe and the outer surface of the elbow body.

Furthermore, it also includes a sealing cover, which is detachably arranged on the sewage storage pipe and is used to block the sewage storage pipe.

Furthermore, it also includes a connecting piece, a flange is arranged on the sewage storage pipe, and the connecting piece passes through the sealing cover to fix the sealing cover on the flange.

Furthermore, the bending angle of the curved pipe body ranges from 45° to 135°.

The elbow filter of the utility model has the following advantages:

A sewage storage pipe is connected to the opening of the curved pipe body, and a filter screen is detachably provided in the sewage storage pipe. One end of the filter screen is an inclined end, which abuts against the inner wall of the curved pipe body. The filter screen filters the water coming in from the water inlet, thereby reducing the internal resistance of the pipe network, which not only improves the filtering effect but also achieves the energy-saving effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of the elbow filter of the utility model;

FIG2 is a schematic diagram of the cross-sectional structure of the elbow filter of the utility model;

FIG3 is a schematic diagram of the structure of the filter screen of the present invention.

Description of the markings in the figure:

1. Bend pipe body; 11. Water inlet; 12. Water outlet; 2. Sewage storage pipe; 21. Flange; 3. Filter; 31. Inclined end; 311. First inclined portion; 3111. First inclined surface; 312. Second inclined portion; 3121. Second inclined surface; 4. Cover; 5. Connector.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

The elbow filter of the present invention will be described below with reference to Figures 1 to 3 .

In northern China, winter heating is mainly provided by centralized heating, and the main medium of centralized heating is hot water. Water circulates in the primary and secondary heating pipe networks. Due to the uneven water quality in different regions and the continuous operation throughout the heating season, the corrosion and aging of the pipes will gradually increase the impurities in the hot water in the pipes. Impurities in the water will adhere to the heat exchange surface of the heat exchanger, increase the heat exchange resistance, reduce the heat exchange performance, and even block the heat exchanger, causing the heat exchanger to leak and cause pipe network safety problems. Therefore, installing filters on the heating pipes is an effective means to ensure the quality of hot water in the pipe network. Existing pipe filters, such as Y-type pipe filters, need to be installed on straight pipe sections. Their own structure will form an elbow to produce local resistance. Each filter will increase the resistance of the pipe network, increase the pump power of the pipe network to transport hot water, and is not conducive to energy saving. Therefore, it is urgent to design an elbow filter to solve the above-mentioned problems.

As shown in Fig. 1 and Fig. 2, the elbow filter in the utility model comprises an elbow body 1, one end of the elbow body 1 is a water inlet 11, the other end is a water outlet 12, an opening is provided on the elbow body 1, a sewage storage pipe 2 is connected to the opening, a filter screen 3 is detachably provided in the sewage storage pipe 2, one end of the filter screen 3 is an inclined end 31, the inclined end 31 abuts against the inner wall of the elbow body 1, and the filter screen 3 filters the water coming in from the water inlet 11. In this embodiment, the filter screen 3 is fixed in the sewage storage pipe 2 by buckles or bolts.

A sewage storage pipe 2 is connected to the opening of the curved pipe body 1, and a filter screen 3 is detachably provided in the sewage storage pipe 2. One end of the filter screen 3 is an inclined end 31, and the inclined end 31 abuts against the inner wall of the curved pipe body 1. The filter screen 3 filters the water coming in from the water inlet 11, thereby reducing the resistance inside the pipe network, which not only improves the filtering effect, but also achieves the energy-saving effect.

Further, as shown in Fig. 1 to Fig. 3, the inclined end 31 includes a first inclined portion 311 and a second inclined portion 312, the first inclined portion 311 and the second inclined portion 312 are connected in an arc shape, the first inclined portion 311 crosses the elbow body 1 and abuts against the inner wall of the elbow body 1, and the second inclined portion 312 is arranged at the inner wall of the opening of the elbow body 1. The first inclined portion 311 is provided with a first inclined surface 3111, the first inclined surface 3111 abuts against the inner wall of the elbow body 1, and the second inclined portion 312 is provided with a second inclined surface 3121, and the second inclined surface 3121 is arranged at the inner wall of the opening of the elbow body 1.

The first inclined surface 3111 is provided on the first inclined portion 311. The first inclined surface 3111 matches the inner wall pipe of the elbow body 1 to ensure the sealing of the connection, so that the water entering the water inlet 11 is filtered through the filter 3 to reduce the impurities entering the water outlet 12. The impurities filtered by the filter 3 are pushed into the sewage storage pipe 2 by the water flow in the water inlet 11. When the impurities in the sewage storage pipe 2 are full, the impurities in the sewage storage pipe 2 are removed. Through the filtering effect of the filter 3, the problem of increasing the internal resistance of the pipe network due to the increase of impurities is reduced, which not only improves the filtering effect, but also achieves the effect of energy saving.

Further, as shown in Figures 1 to 3, the bending angle of the elbow body 1 ranges from 45° to 135°. Figure 2 shows that the bending angle of the elbow body 1 ranges from 90°. When the bending angle of the elbow body 1 is different, the inclination of the first inclined surface 3111 and the second inclined surface 3121 can be set according to actual conditions to match the bending angle of the elbow body 1 in different situations.

Further, as shown in FIGS. 1 to 3 , the elbow filter in the utility model further includes a cover 4, which is detachably arranged on the sewage storage pipe 2 and is used to block the sewage storage pipe 2. The elbow filter in the utility model further includes a connector 5, and a flange 21 is arranged on the sewage storage pipe 2. The connector 5 passes through the cover 4 to fix the cover 4 on the flange 21. Specifically, a first through hole is provided on the cover 4, and a second through hole is provided on the flange 21. The connector 5 passes through the first through hole and the second through hole in sequence to connect, and connects the cover 4 to the flange 21, that is, the cover 4 is connected to the end of the sewage storage pipe 2 away from the water inlet 11. In this embodiment, the connector 5 is a bolt. In other embodiments, the cover 4 and the flange 21 can also be connected by a snap connection or a threaded connection, as long as the cover 4 can be fixedly connected to one end of the sewage storage pipe 2.

During the filtering process of the filter net 3, the cover 4 is fixedly connected to the sewage storage pipe 2, and the water entering the water inlet 11 flows out from the water outlet 12 after being filtered by the filter net 3, and the impurities filtered by the filter net 3 enter the sewage storage pipe 2 and are deposited. When the impurities in the sewage storage pipe 2 are fully deposited, the impurities in the sewage storage pipe 2 are cleared, or the impurities in the sewage storage pipe 2 are cleared regularly, the connector 5 is disassembled, the cover 4 is separated from the sewage storage pipe 2, and the impurities in the sewage storage pipe 2 are cleared. After the cleaning is completed, the cover 4 is fixed to the sewage storage pipe 2 again through the connector 5.

Further, as shown in Fig. 1 to Fig. 3, the first inclined surface 3111 extends obliquely toward the outside of the filter screen 3 along one end of the filter screen 3, and the second inclined surface 3121 extends obliquely toward the inside of the filter screen 3 along one end of the filter screen 3. The first inclined surface 3111 is arranged in this way, so that the first inclined surface 3111 can be in close contact with the inner wall of the elbow body 1, thereby improving the filtering effect, and the second inclined surface 3121 extends obliquely toward the inside of the filter screen 3 along one end of the filter screen 3, thereby facilitating the filtered impurities to enter the sewage storage pipe 2, thereby improving the storage efficiency of impurities in the sewage storage pipe 2.

Further, as shown in Figures 1 to 3, the diameters of the elbow body 1 and the sewage storage pipe 2 are the same. In this embodiment, the diameters of the elbow body 1 are the same at all locations, that is, the diameter of the water inlet 111 is D1 and the diameter of the water outlet 12 is D2, D1=D2, and the diameter of the sewage storage pipe 23 is D3, D1=D2=D3. The distance between the central axis of the sewage storage pipe 2 and the outer surface of the elbow body 1 is L1, the diameter of the elbow body 1 is D1, the arc radius of the elbow body 1 is R, and the relationship between L1 and D1 and R is 0<L1<R+D1/2. In this embodiment, the greater the flow rate of the water inlet 11, the greater the centrifugal force of the water flow, and the smaller the distance L1 between the central axis of the sewage storage pipe 2 and the outer surface of the elbow body 1. This arrangement is convenient for improving the filtering effect and facilitating the collection of impurities by the sewage storage pipe 2. The length of the sewage storage pipe 2 is L2, and the length L2 of the sewage storage pipe 2 can be set according to actual conditions.

The working principle of the elbow filter in the utility model is as follows:

The filter screen 3 is installed in the sewage storage pipe 2. One end of the filter screen 3 is an inclined end 31. The inclined end 31 includes a first inclined portion 311 and a second inclined portion 312. The first inclined portion 311 is provided with a first inclined surface 3111, and the second inclined portion 312 is provided with a second inclined surface 3121. The first inclined surface 3111 matches the inner wall pipe of the curved pipe body 1 to ensure the sealing of the connection, so that the water entering the water inlet 11 is filtered through the filter screen 3 to reduce the impurities flowing into the water outlet 12. The second inclined surface 3121 is provided on the inner wall of the curved pipe body 1 to facilitate the impurities filtered by the filter screen 3 to be pushed into the sewage storage pipe 2 through the action of the water flow in the water inlet 11.

The filter screen 3 in the sewage storage pipe 2 is fixedly connected to the sewage storage pipe 2, and the filter screen 3 is fixed in the sewage storage pipe 2. During the filtering process of the filter screen 3, the cover 4 is fixedly connected to the sewage storage pipe 2, and the water entering the water inlet 11 flows out from the water outlet 12 after being filtered by the filter screen 3, and the impurities filtered by the filter screen 3 enter the sewage storage pipe 2 and are deposited. When the impurities in the sewage storage pipe 2 are fully deposited, the connector 5 is disassembled, the cover 4 is separated from the sewage storage pipe 2, and the impurities in the sewage storage pipe 2 are cleared, or the impurities in the sewage storage pipe 2 are cleared regularly. After the cleaning is completed, the cover 4 is fixed in the sewage storage pipe 2 again through the connector 5, and the filter screen 3 continues to filter the water coming in the water inlet 11.

Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims (10)

1. An elbow filter, characterized in that it includes a bend pipe body, one end of the bend pipe body is a water inlet, the other end is a water outlet, an opening is provided on the bend pipe body, a sewage storage pipe is connected to the opening, a filter screen is detachably provided in the sewage storage pipe, one end of the filter screen is an inclined end, the inclined end abuts against the inner wall of the bend pipe body, and the filter screen filters the water coming in from the water inlet. 2. The elbow filter according to claim 1 is characterized in that the inclined end includes a first inclined portion and a second inclined portion, the first inclined portion and the second inclined portion are connected in an arc shape, the first inclined portion crosses the elbow body and abuts against the inner wall of the elbow body, and the second inclined portion is arranged on the inner wall of the opening of the elbow body. 3. The elbow filter according to claim 2 is characterized in that a first inclined surface is provided on the first inclined portion, the first inclined surface abuts against the inner wall of the elbow body, and a second inclined surface is provided on the second inclined portion, the second inclined surface is provided on the inner wall of the opening of the elbow body. 4 . The elbow filter according to claim 3 , wherein the first inclined surface extends obliquely toward the outside of the filter mesh along one end of the filter mesh, and the second inclined surface extends obliquely toward the inside of the filter mesh along one end of the filter mesh. 5. The elbow filter according to claim 1, characterized in that the diameters of the elbow body and the sewage storage pipe are the same. 6. The elbow filter according to claim 1 is characterized in that the distance between the central axis of the sewage storage pipe and the outer surface of the elbow body is L1, the diameter of the elbow body is D1, the arc radius of the elbow body is R, and the relationship between L1, D1 and R is 0<L1<R+D1/2. 7. The elbow filter according to claim 6, characterized in that the greater the flow rate of the water inlet, the smaller the distance L1 between the central axis of the sewage storage pipe and the outer surface of the elbow body. 8. The elbow filter according to claim 1, further comprising a sealing cover, which is detachably disposed on the sewage storage pipe and is used to block the sewage storage pipe. 9. The elbow filter according to claim 8, characterized in that it also includes a connecting piece, a flange is provided on the sewage storage pipe, and the connecting piece passes through the sealing cover to fix the sealing cover on the flange. 10. The elbow filter according to claim 1, characterized in that the bending angle of the elbow body ranges from 45° to 135°.