Horizontal gravel filter

Abstract

The utility model discloses a horizontal gravel filter, which belongs to the technical field of filters and comprises a skid-mounted base, a filter tank is arranged on the skid-mounted base, a water inlet, a water outlet and a drain outlet are arranged on the filter tank, and a water distributor and a water collector are arranged on the inner side of the filter tank. The problems that most existing filters are in a vertical cylinder shape, the overall height is large, overhaul and maintenance are inconvenient, a filter material layer is inconvenient to clean, and the use effect is poor can be solved. According to the horizontal gravel filter disclosed by the utility model, under the condition of the same diameter, the filtering area is larger, the overall height is reduced, the maintenance is convenient, the water distributor adopts overflow water distribution, the water distribution is more uniform, the impact on a filter material layer is small, the uniform water collection can be ensured, the water can be uniformly distributed during backwashing, and the water can be uniformly distributed according to the water volume. A plurality of filters are combined for filtering, and even can be stacked into two layers, so that the use effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a horizontal sand and gravel filter. Background Art

[0002] The filter is an indispensable device on the pipeline for conveying media, usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve, and other equipment of Fanggong filter. The filter consists of a cylinder, a stainless steel filter, a sewage discharge part, a transmission device, and an electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked. When cleaning is required, just take out the detachable filter cartridge, treat it, and reinstall it.

[0003] Most existing filters are vertical cylindrical, with a relatively high overall height, inconvenient inspection and maintenance, and inconvenient for cleaning the filter material layer, resulting in poor use effect. Utility Model Content

[0004] The purpose of the utility model is to provide a horizontal sand and gravel filter. Under the condition of the same diameter, the filtration area is larger and the overall height is reduced, which makes inspection and maintenance convenient. The water distributor adopts overflow water distribution, which is more uniform and has little impact on the filter material layer, thereby ensuring uniform water collection and uniform water distribution during backwashing. According to the amount of water, multiple filters can be combined for filtration, and even two layers can be stacked, which can improve the use effect and solve the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A horizontal sand and gravel filter comprises a skid-mounted base, on which filter tank bodies placed side by side are arranged, and on which a water inlet and a water outlet are arranged, wherein the water inlet is located on one side of the water outlet, and the filter tank body is also provided with a sewage outlet, wherein the sewage outlet is connected to the water inlet, and a water distributor for uniform overflow water distribution and a water collector for uniform water collection are arranged on the inner side of the filter tank body, wherein the water distributor and the water collector are both mounted on the filter tank body through a support, and the water distributor is located at the upper end of the water collector.

[0007] Preferably, a manhole and a vent are provided on the filter tank body, and the manhole is located above the vent.

[0008] Preferably, a sewage valve is provided on the sewage outlet.

[0009] Preferably, the water distributor comprises a water distribution pipe and water distribution nozzles, the water distribution pipe is installed on the filter tank body through a support, and the water distribution pipe is provided with evenly distributed water distribution nozzles.

[0010] Preferably, the water distribution nozzle is provided with an overflow groove, and the overflow grooves are opened on the water distribution nozzle at equal intervals.

[0011] Preferably, the water collector comprises a central water collecting pipe, a water collecting branch pipe and a connecting pipe. The central water collecting pipe is installed on the filter tank body through a support. The port of the central water collecting pipe is connected to the water collecting branch pipe, and the port of the central water collecting pipe is also connected to the connecting pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Compared with the existing vertical cylindrical filters, the horizontal sand and gravel filter of the utility model has a larger filtration area under the condition of the same diameter, and the overall height is reduced, so that the inspection and maintenance are convenient. The water distributor and the water collector are both plastic parts, which are easy to disassemble, and the water distributor adopts overflow water distribution, which is more uniform and has less impact on the filter material layer. The length of each water collecting branch pipe of the water collector is the same, which can ensure uniform water collection. Water can be evenly distributed during backwashing, which is convenient for cleaning the filter material layer. According to the amount of water, multiple filters can be combined for filtration, and even two layers can be stacked to improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a forward schematic diagram of the horizontal sand filter of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the horizontal sand filter of the utility model;

[0016] Figure 3 It is a side sectional view of the filter tank of the utility model;

[0017] Figure 4 It is a front cross-sectional view of the filter tank of the utility model.

[0018] In the figure: 1. skid-mounted base; 2. filter tank; 21. manhole; 22. drain port; 3. water inlet; 4. water outlet; 5. sewage outlet; 51. sewage valve; 6. water distributor; 61. water distribution pipe; 62. water distribution nozzle; 621. overflow trough; 7. water collector; 71. central water collection pipe; 72. water collection branch pipe; 73. connecting pipe; 8. support. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In order to solve the technical problem that most existing filters are vertical cylindrical, with a high overall height, inconvenient maintenance, and inconvenient cleaning of the filter layer, resulting in poor use effect, please refer to Figure 1-Figure 4 , this embodiment provides the following technical solutions:

[0021] A horizontal sand filter comprises a skid-mounted base 1 on which filter tanks 2 placed side by side are arranged.

[0022] It should be noted that, according to the amount of water, multiple filters can be combined for filtration, and even two layers can be stacked to improve the use effect. The skid-mounted base 1 can be skidded together for overall delivery.

[0023] The filter tank body 2 is provided with a manhole 21 and a vent 22 , and the manhole 21 is located above the vent 22 .

[0024] It should be noted that the manhole 21 is provided to facilitate maintenance personnel to enter the filter tank body 2 and to perform maintenance on the filter tank body 2 , and the filter tank body 2 can be emptied through the vent 22 .

[0025] The filter tank body 2 is provided with a water inlet 3 and a water outlet 4 , and the water inlet 3 is located at one side of the water outlet 4 .

[0026] It should be noted that the water to be filtered can enter the filter tank body 2 through the provided water inlet 3 , and the filtered clean water can be discharged from the filter tank body 2 through the provided water outlet 4 .

[0027] Specifically, the water to be filtered enters the filter tank 2 through the water inlet 3 and flows through the filter screen arranged in the filter tank 2. After being filtered by the filter screen, the particulate impurities in the water to be filtered are retained inside the filter screen, and the clean water is collected by the water collector 7 and finally discharged from the water outlet 4 and enters the pipeline required by the user for process circulation.

[0028] The filter tank body 2 is also provided with a sewage outlet 5 , which is connected to the water inlet 3 , and a sewage valve 51 is provided on the sewage outlet 5 .

[0029] It should be noted that the sewage outlet 5 can be controlled by the sewage valve 51 , and the particulate impurities trapped inside the filter can be discharged from the sewage outlet 5 by opening the sewage valve 51 .

[0030] Specifically, as more and more particles are intercepted, the filtration speed becomes slower and slower, while the water to be filtered from the water inlet 3 continues to flow in, the filter holes will become smaller and smaller, thereby generating a pressure difference between the water inlet 3 and the water outlet 4. When the pressure difference reaches the set value, it automatically enters the backwash state, and the drain valve 51 opens. Due to the water pressure in the water outlet 4, the filtered clean water enters the water distribution nozzle 62 through the water distribution pipe 61, and the water is evenly distributed in the opposite direction through the overflow groove 621 to flush the particulate impurities trapped in the filter screen, so that the particulate impurities are discharged from the drain outlet 5.

[0031] A water distributor 6 for uniform overflow water distribution and a water collector 7 for uniform water collection are provided on the inner side of the filter tank body 2. The water distributor 6 and the water collector 7 are both installed on the filter tank body 2 through a support 8, and the water distributor 6 is located at the upper end of the water collector 7.

[0032] The water distributor 6 includes a water distribution pipe 61 and water distribution nozzles 62 . The water distribution pipe 61 is installed on the filter tank 2 through a support 8 . The water distribution pipe 61 is provided with evenly distributed water distribution nozzles 62 .

[0033] The water distribution nozzle 62 is provided with overflow grooves 621 , and the overflow grooves 621 are opened on the water distribution nozzle 62 at equal intervals.

[0034] It should be noted that when entering the backwash state, the drain valve 51 is opened. Due to the water pressure in the water outlet 4, the filtered clean water enters the water distribution nozzle 62 through the water distribution pipe 61, and distributes water in the reverse direction evenly through the overflow groove 621 to flush the particulate impurities trapped inside the filter screen, so that the particulate impurities are discharged from the drain outlet 5.

[0035] The water collector 7 includes a central water collecting pipe 71, a water collecting branch pipe 72 and a connecting pipe 73. The central water collecting pipe 71 is installed on the filter tank 2 through a support 8. The port of the central water collecting pipe 71 is connected to the water collecting branch pipe 72. The port of the central water collecting pipe 71 is also connected to the connecting pipe 73.

[0036] Working principle: The water to be filtered enters the filter tank 2 through the water inlet 3 and flows through the filter screen arranged in the filter tank 2. After being filtered by the filter screen, the particulate impurities in the water to be filtered are trapped inside the filter screen, and the clean water is collected by the water collector 7 and finally discharged from the water outlet 4 and enters the pipeline required by the user for process circulation.

[0037] As more and more particles are intercepted, the filtration speed becomes slower and slower, while the water to be filtered from the water inlet 3 continues to flow in, and the filter holes become smaller and smaller, thereby generating a pressure difference between the water inlet 3 and the water outlet 4. When the pressure difference reaches the set value, it automatically enters the backwash state, and the drain valve 51 opens. Due to the water pressure in the water outlet 4, the filtered clean water enters the water distribution nozzle 62 through the water distribution pipe 61, and the water is evenly distributed in the opposite direction through the overflow groove 621 to flush the particulate impurities trapped in the filter screen, so that the particulate impurities are discharged from the drain outlet 5.

[0038] Compared with the existing vertical cylindrical filter, the horizontal sand and gravel filter has a larger filtration area under the same diameter and a lower overall height, which makes it easy to inspect and maintain. The water distributor 6 and the water collector 7 are both plastic parts, which are easy to disassemble. The water distributor 6 adopts overflow water distribution, which is more uniform and has less impact on the filter material layer. The length of each water collecting branch pipe 72 of the water collector 7 is the same, which can ensure uniform water collection. Water can be evenly distributed during backwashing, which is convenient for cleaning the filter material layer. According to the amount of water, multiple filters can be combined for filtration, and even two layers can be stacked to improve the use effect.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal sand filter, comprising a skid-mounted base (1), Features: The skid-mounted base (1) is provided with filter tank bodies (2) placed side by side, the filter tank body (2) is provided with a water inlet (3) and a water outlet (4), the water inlet (3) is located on one side of the water outlet (4), the filter tank body (2) is also provided with a sewage outlet (5), the sewage outlet (5) is connected to the water inlet (3), and a water distributor (6) for uniform overflow water distribution and a water collector (7) for uniform water collection are provided on the inner side of the filter tank body (2), the water distributor (6) and the water collector (7) are both installed on the filter tank body (2) through a support member (8), and the water distributor (6) is located at the upper end of the water collector (7).

2. A horizontal sand filter according to claim 1, Features: The filter tank body (2) is provided with a manhole (21) and a drain port (22), wherein the manhole (21) is located above the drain port (22).

3. A horizontal sand filter according to claim 1, Features: The sewage outlet (5) is provided with a sewage valve (51).

4. A horizontal sand filter according to claim 1, Features: The water distributor (6) comprises a water distribution pipe (61) and water distribution nozzles (62); the water distribution pipe (61) is mounted on the filter tank body (2) via a support member (8); and the water distribution pipe (61) is provided with evenly distributed water distribution nozzles (62).

5. A horizontal sand filter according to claim 4, Features: The water distribution nozzle (62) is provided with overflow grooves (621), and the overflow grooves (621) are opened on the water distribution nozzle (62) at equal intervals.

6. A horizontal sand filter according to claim 1, Features: The water collector (7) comprises a central water collecting pipe (71), a water collecting branch pipe (72) and a connecting pipe (73); the central water collecting pipe (71) is installed on the filter tank (2) through a support member (8); the port of the central water collecting pipe (71) is connected to the water collecting branch pipe (72); and the port of the central water collecting pipe (71) is also connected to the connecting pipe (73).

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