Filtering device for water conservancy project

Abstract

The filtering device comprises a hollow filtering tank, a conical stainless steel filtering net is installed in an inner cavity of the filtering tank, the middle of the stainless steel filtering net is distributed in a downward protruding mode, and the inner cavity of the filtering tank is divided into a water inlet cavity located on the lower portion and a water outlet cavity located on the upper portion through the stainless steel filtering net; a water inlet pipe communicated with the water inlet cavity is arranged on the side wall of the lower portion of the filtering tank and provided with a water inlet valve, and a water outlet pipe communicated with the water outlet cavity is arranged at the top of the filtering tank and provided with a water outlet valve. According to the utility model, the conical stainless steel filter screen is arranged, and the water body filtering contact area can be increased by utilizing the shape that the middle part of the conical stainless steel filter screen protrudes downwards, so that the impurity filtering effect is greatly improved; and meanwhile, the water flow is filtered from bottom to top, so that the filtered and intercepted impurities can automatically settle down by virtue of self weight, and the impurities are prevented from blocking meshes to influence filtering, thereby improving the filtering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a filtration device for water conservancy projects. Background Technology

[0002] In water conservancy projects, the use of water transmission pipelines is indispensable. During the use of water transmission pipelines, filtration devices are usually required to filter impurities in the water flow to ensure the normal flow of water.

[0003] Existing filtration devices used in water pipelines for water conservancy projects generally employ filter plates. During use, the filter plate is placed into the pipeline to intercept impurities in the water flow. When cleaning is needed, the valve is closed, the filter plate is removed for cleaning, and then it is placed back into the pipeline for reuse. However, this method suffers from low filtration efficiency, and the need to remove the filter plate for cleaning is time-consuming and labor-intensive.

[0004] Therefore, further improvements are needed to the existing water conservancy project pipeline filtration devices. Utility Model Content

[0005] The purpose of this invention is to provide a filtration device for water conservancy projects. By installing a conical stainless steel filter screen, the downward-protruding shape of the middle part can greatly improve the filtration effect of impurities. At the same time, the water flow is from bottom to top for filtration, which allows the filtered and intercepted impurities to settle down by their own weight, avoiding impurities clogging the mesh and affecting filtration. This improves filtration efficiency and solves the problems mentioned in the background art to a certain extent.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A filtration device for water conservancy projects includes a hollow filter tank. A conical stainless steel filter screen is installed inside the filter tank, with its center bulging downwards. The filter screen divides the inner cavity of the filter tank into a lower inlet chamber and an upper outlet chamber. An inlet pipe communicating with the inlet chamber is provided on the lower side wall of the filter tank, and an inlet valve is installed on the inlet pipe. An outlet pipe communicating with the outlet chamber is provided on the top of the filter tank, and an outlet valve is installed on the outlet pipe.

[0008] Furthermore, the bottom of the filter tank is provided with a collection hopper that communicates with the water inlet chamber, and the collection hopper is located directly below the stainless steel filter screen.

[0009] Furthermore, a slag discharge pipe is provided at the bottom of the hopper, and a slag discharge valve is installed on the slag discharge pipe.

[0010] Furthermore, the water outlet chamber is equipped with a backflush pipe, which has several nozzles that spray water toward the stainless steel filter screen, and the backflush pipe is connected to a water supply device.

[0011] Furthermore, the water supply device includes a water tank, a water supply pipe, a water pump, and a backflush control valve. The two ends of the water supply pipe are respectively connected to the water tank and the backflush pipe, and the water pump and the backflush control valve are connected in series on the water supply pipe.

[0012] Furthermore, the filter tank includes an upper tank body and a lower tank body connected vertically. The lower edge of the upper tank body is provided with a first mounting plate, and the upper edge of the lower tank body is provided with a second mounting plate. The first mounting plate is connected to the second mounting plate by fasteners.

[0013] As an example, the fastener is a bolt and nut assembly.

[0014] Furthermore, the stainless steel filter screen has a ring-shaped distribution of fixing plates along its outer perimeter, and the fixing plates are clamped and fixed by the first mounting plate and the second mounting plate.

[0015] Furthermore, a sealing ring is provided between the first mounting plate and the second mounting plate, which is nested and installed with the fixed plate.

[0016] Furthermore, both the inlet pipe and the outlet pipe are provided with flange plates, and the flange plates have several mounting holes.

[0017] Furthermore, the bottom of the filter tank is provided with several support feet.

[0018] Compared with the prior art, this utility model provides a filtration device for water conservancy projects, which has the following beneficial effects:

[0019] This invention utilizes a conical stainless steel filter screen, whose downward-convex shape increases the water filtration contact area, greatly improving the filtration efficiency. Simultaneously, the upward-flow filtration allows filtered impurities to settle automatically by their own weight, preventing clogging of the screen and thus improving filtration efficiency.

[0020] This invention can be used to intercept and filter impurities in water in water conveyance pipelines of water conservancy projects, thereby improving water quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a half-sectional view of the present invention in use;

[0024] Figure 3 This is an assembly diagram of the present invention.

[0025] Reference numerals: 1. Filter tank; 11. Upper tank body; 111. First mounting plate; 112. Water outlet pipe; 12. Lower tank body; 121. Second mounting plate; 122. Water inlet pipe; 123. Collection hopper; 124. Slag discharge pipe; 13. Water inlet chamber; 14. Water outlet chamber; 15. Support foot; 16. Flange plate; 161. Mounting hole; 2. Stainless steel filter screen; 21. Fixing plate; 3. Water inlet valve; 4. Water outlet valve; 5. Backflush pipe; 51. Nozzle; 6. Water supply device; 61. Water tank; 62. Water supply pipe; 63. Water pump; 64. Backflush control valve; 7. Slag discharge valve; 8. Fastener; 9. Sealing ring. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] Please refer to Figures 1-3This embodiment provides a filtration device for water conservancy projects, including a hollow filter tank 1. A conical stainless steel filter screen 2 is installed inside the filter tank 1, with its center bulging downwards. The stainless steel filter screen 2 divides the inner cavity of the filter tank 1 into a lower inlet chamber 13 and an upper outlet chamber 14. An inlet pipe 122 communicating with the inlet chamber 13 is provided on the lower side wall of the filter tank 1, and an inlet valve 3 is installed on the inlet pipe 122. An outlet pipe 112 communicating with the outlet chamber 14 is provided on the top of the filter tank 1, and an outlet valve 4 is installed on the outlet pipe 112. By installing the conical stainless steel filter screen, the downward-bulging shape of its center increases the water filtration contact area, greatly improving the filtration effect. Simultaneously, the water flow is from bottom to top, allowing the filtered impurities to settle automatically by their own weight, preventing them from clogging the mesh and affecting filtration, thereby improving filtration efficiency.

[0028] In some embodiments, the bottom of the filter tank 1 is provided with a collection hopper 123 communicating with the water inlet chamber 13, and the collection hopper 123 is located directly below the stainless steel filter screen 2. In this way, the intercepted impurities automatically settle and fall into the collection hopper for collection.

[0029] In some specific embodiments, a slag discharge pipe 124 is provided at the bottom of the collecting hopper 123, and a slag discharge valve 7 is installed on the slag discharge pipe 124. By opening the slag discharge valve, impurities collected in the collecting hopper can be discharged.

[0030] As an improved implementation, to prevent the stainless steel filter screen from being clogged by small impurities and affecting the filtration effect, a backwash pipe 5 is installed in the water outlet chamber 14. The backwash pipe 5 is equipped with several nozzles 51 that spray water towards the stainless steel filter screen 2, and the backwash pipe 5 is connected to a water supply device 6. Thus, after a period of use, the inlet and outlet valves can be closed, and the slag discharge valve can be opened. Water with a certain pressure is introduced into the backwash pipe and sprayed onto the stainless steel filter screen from the nozzles, thereby flushing away the impurities clogging the mesh of the stainless steel filter screen and maintaining a high filtration effect.

[0031] In some specific embodiments, the water supply device 6 includes a water tank 61, a water supply pipe 62, a water pump 63, and a backwash control valve 64. The two ends of the water supply pipe 62 are connected to the water tank 61 and the backwash pipe 5, respectively. The water pump 63 and the backwash control valve 64 are connected in series on the water supply pipe 62. In this way, water for backwashing can be temporarily added to the water tank, and by opening the backwash control valve and starting the water pump, water for flushing can be supplied to the backwash pipe.

[0032] As a preferred embodiment, a solar panel can be installed to provide power to the water pump 63.

[0033] In some specific embodiments, the filter tank 1 includes an upper tank body 11 and a lower tank body 12 connected vertically. The lower edge of the upper tank body 11 is provided with a first mounting plate 111, and the upper edge of the lower tank body 12 is provided with a second mounting plate 121. The first mounting plate 111 is connected to the second mounting plate 121 by a fastener 8. As an example, the fastener 8 is a bolt and nut assembly.

[0034] In some specific embodiments, the stainless steel filter screen 2 has a ring-shaped distribution of fixing plates 21 on its outer periphery, and the fixing plates 21 are clamped and fixed by the first mounting plate 111 and the second mounting plate 121.

[0035] In some specific embodiments, in order to improve the sealing between the upper tank and the lower tank, a sealing ring 9 is provided between the first mounting plate 111 and the second mounting plate 121, which is nested and installed with the fixing plate 21.

[0036] In some specific embodiments, both the inlet pipe 122 and the outlet pipe 112 are provided with flange plates 16, and the flange plates 16 have a plurality of mounting holes 161, so as to facilitate connection with the water supply pipeline of the water conservancy project.

[0037] In some specific embodiments, the bottom of the filter tank 1 is provided with several support feet 15, which can support the filter tank relatively stably.

[0038] This invention can be used to intercept and filter impurities in water in water conveyance pipelines of water conservancy projects, thereby improving water quality.

[0039] The above embodiments are merely illustrative of the concept and technical solution of this utility model, and are not intended to limit this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filtration device for water conservancy projects, comprising a hollow filter tank, characterized in that, The filter tank has a conical stainless steel filter screen installed inside its cavity. The stainless steel filter screen protrudes downwards from the center and divides the inner cavity of the filter tank into a lower inlet chamber and an upper outlet chamber. The lower side wall of the filter tank is provided with an inlet pipe that communicates with the inlet chamber and is equipped with an inlet valve. The top of the filter tank is provided with an outlet pipe that communicates with the outlet chamber and is equipped with an outlet valve.

2. The filtration device for water conservancy projects according to claim 1, characterized in that, The bottom of the filter tank is provided with a collection hopper that communicates with the water inlet chamber, and the collection hopper is located directly below the stainless steel filter screen.

3. The filtration device for water conservancy projects according to claim 2, characterized in that, The bottom of the hopper is equipped with a slag discharge pipe, and the slag discharge pipe is fitted with a slag discharge valve.

4. The filtration device for water conservancy projects according to claim 3, characterized in that, The water outlet chamber is equipped with a backflush pipe, which has several nozzles that spray water toward the stainless steel filter screen. The backflush pipe is connected to a water supply device.

5. The filtration device for water conservancy projects according to claim 4, characterized in that, The water supply device includes a water tank, a water supply pipe, a water pump, and a backflush control valve. The two ends of the water supply pipe are connected to the water tank and the backflush pipe, respectively. The water pump and the backflush control valve are connected in series on the water supply pipe.

6. The filtration device for water conservancy projects according to claim 1, characterized in that, The filter tank includes an upper tank and a lower tank that are connected vertically. The lower edge of the upper tank is provided with a first mounting plate, and the upper edge of the lower tank is provided with a second mounting plate. The first mounting plate is connected to the second mounting plate by fasteners.

7. The filtration device for water conservancy projects according to claim 6, characterized in that, The stainless steel filter screen has a ring of fixed plates distributed around its outer perimeter, and the fixed plates are clamped and fixed by the first mounting plate and the second mounting plate.

8. The filtration device for water conservancy projects according to claim 7, characterized in that, A sealing ring is provided between the first mounting plate and the second mounting plate, which is nested and installed with the fixed plate.

9. The filtration device for water conservancy projects according to any one of claims 1 to 8, characterized in that, Both the inlet pipe and the outlet pipe are equipped with flange plates, and the flange plates have several mounting holes.

10. The filtration device for water conservancy projects according to any one of claims 1 to 8, characterized in that, The bottom of the filter tank is provided with several support feet.

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