Filtering system controlled by ceramic hard sealing three-way valve

Abstract

The utility model discloses a ceramic hard seal three-way valve controlled filtering system, which comprises a water inlet header pipe, a water outlet header pipe, a sewage discharge header pipe, a support, a filter and a three-way valve, the three-way valve comprises a valve body, a movable valve clack, a fixed valve seat and a driving device, and a water inlet channel, a drainage channel and a filter channel are arranged in the valve body. The water inlet channel is connected with the water inlet header pipe, the drainage channel is connected with the sewage discharge header pipe, the filter channel is connected with the water inlet, the fixed valve seat is fixed at the intersection of the water inlet channel, the drainage channel and the filter channel, and the movable valve clack is arranged on the fixed valve seat, is in hard sealing connection with the fixed valve seat and is controlled by the driving device to act. According to the filtering system controlled by the ceramic hard sealing three-way valve, the mode that the movable valve clack is connected with the fixed valve seat in a hard sealing mode is adopted, so that the filtering system can be effectively resistant to abrasion, corrosion and aging, the sealing surface is self-cleaned, the filtering system is durable, and the filtering system runs stably and reliably.

Description

Technical Field

[0001] The utility model relates to a filtering system, in particular to a filtering system controlled by a ceramic hard-sealed three-way valve. Background Art

[0002] In the field of fluid purification technology, more than two filtering devices are usually combined in parallel for purification. A purification process of filtration + backwashing is usually adopted, and the backwashing fluid directly uses the purified fluid. The beneficial effect of this is that the filter medium does not require a positive flushing process, which saves the consumption of the flushing medium. To achieve the filtering and backwashing functions, it is necessary to control the changes in the fluid flow path through valves. In the prior art, for example, a utility model patent with patent application number 202223064747.2 and the name of a fully automatic filtration system with a backwashing function discloses that the changes in the fluid flow path are achieved by controlling the first, second, and third electric three-way valves. However, the opening and closing parts of the above-mentioned three-way valves are usually diaphragm valves and butterfly valves with soft sealing structures, and there are problems such as the sealing structure being not resistant to wear, easy to age, and easy to be blocked and leaked by impurities. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a filtration system controlled by a ceramic hard-sealed three-way valve. The opening and closing parts of the control valve adopt a ceramic hard-sealed structure, which has the beneficial effects of wear resistance, corrosion resistance, aging resistance, and self-cleaning sealing surface.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering system controlled by a ceramic hard-sealed three-way valve, comprising an inlet main pipe, an outlet main pipe, a sewage main pipe, a bracket, a filter and a three-way valve, wherein the inlet main pipe, the outlet main pipe and the sewage main pipe are all installed on the bracket, the filter has a water inlet and a water outlet, the water outlet is connected to the outlet main pipe, the three-way valve comprises a valve body, a movable valve flap, a fixed valve seat and a driving device, a water inlet channel, a drainage channel and a filter channel are arranged in the valve body, the water inlet channel is connected to the inlet main pipe, the drainage channel is connected to the sewage main pipe, the filter channel is connected to the water inlet, the fixed valve seat is fixed at the intersection of the inlet channel, the drainage channel and the filter channel, the movable valve flap is arranged on the fixed valve seat, is hard-sealed with the fixed valve seat, and is controlled by the driving device to move to connect the water inlet channel with the filter channel or to connect the drainage channel with the filter channel.

[0005] As a further improvement of the utility model, the movable valve flap and the fixed valve seat are both made of engineering ceramics such as alumina, silicon carbide or zirconium oxide.

[0006] As a further improvement of the utility model, the filter and the three-way valve are provided in plurality, and one filter and one three-way valve form a group, which are arranged in groups along the length direction of the water inlet main pipe, the water outlet main pipe, and the sewage main pipe and installed on the water inlet main pipe, the water outlet main pipe, and the sewage main pipe.

[0007] As a further improvement of the present utility model, the fixed valve seat is a disc structure, fixedly installed at the intersection of the water inlet channel, the drainage channel and the filter channel, and two through holes are provided on the fixed valve seat, which are respectively connected to the drainage channel and the filter channel and the water inlet channel and the filter channel. The movable valve flap is also a disc structure, and the movable valve flap is coaxially rotatably attached to the fixed valve seat. The end face of the movable valve flap and the fixed valve seat cooperate and seal with each other. The movable valve flap is provided with a through hole, and the through hole is respectively connected to the two through holes on the fixed valve seat through the rotation of the movable valve flap, thereby realizing the connection between the drainage channel and the filter channel or the water inlet channel and the filter channel.

[0008] As a further improvement of the utility model, the fixed valve seat is a ball seat structure, the water inlet channel, the drainage channel and the filter channel form a T-shape, the ball seat structure is fixed at the intersection of the T-shape, the movable valve flap is a spherical structure, and is rotatably mounted on the ball seat structure. A T-shaped channel is provided in the spherical structure, and the spherical structure rotates in the ball seat structure to connect the drainage channel and the filter channel or the water inlet channel and the filter channel through the T-shaped channel.

[0009] The beneficial effects of the utility model are as follows: by adopting a combination structure of the three-way valve as a valve body, a movable valve disc, a fixed valve seat and a driving device, and utilizing the movable valve disc and the fixed valve seat as valve components for switching the flow path, compared with the diaphragm valve and butterfly valve using a soft sealing structure in the prior art, a hard sealing structure between the movable valve disc and the fixed valve seat is adopted, which has the advantages of wear resistance, abrasion resistance, aging resistance, self-cleaning sealing surface, durability, and stable and reliable operation of the filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the system structure of the first embodiment of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the ceramic flat hard-sealed three-way valve of the first embodiment of the utility model and a schematic diagram of the flow channel in a filtering state;

[0012] Figure 3 It is a schematic diagram of the flow passage of the ceramic plane hard-sealed three-way valve in the backwashing state according to the first embodiment of the utility model;

[0013] Figure 4 This is a schematic diagram of the system structure of the second embodiment of the utility model;

[0014] Figure 5It is a front view structural schematic diagram of a ceramic spherical hard-sealed three-way valve of the second embodiment of the utility model;

[0015] Figure 6 It is a schematic diagram of the top view of the structure of the ceramic spherical hard-sealed three-way valve of the second embodiment of the utility model and a schematic diagram of the flow channel in the filtering state;

[0016] Figure 7 It is a schematic diagram of the flow passage of the ceramic spherical hard-sealed three-way valve in the second embodiment of the utility model in the backwashing state. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] A filtration system controlled by a ceramic hard-sealed three-way valve in this embodiment includes a water inlet main pipe 1, a water outlet main pipe 2, a sewage main pipe 3, a bracket 4, a filter 100 and a three-way valve 200. The water inlet main pipe 1, the water outlet main pipe 2 and the sewage main pipe 3 are all installed on the bracket 4. The filter 100 has a water inlet 101 and a water outlet 102. The water outlet 102 is connected to the water outlet main pipe 2. The three-way valve 200 includes a valve body 210, a movable valve flap 220, a fixed valve seat 230 and a driving device 240. The valve body 210 is provided with a water inlet channel 211, a drainage channel 212 and a filter channel 213. The water inlet channel 211 is connected to the water inlet main pipe 1, the drainage channel 212 is connected to the sewage main pipe 3, and the ... The filter channel 213 is connected to the water inlet 101, and the fixed valve seat 230 is fixed at the intersection of the water inlet channel 211, the drainage channel 212 and the filter channel 213. The movable valve flap 220 is arranged on the fixed valve seat 230, and is hard-sealed with the fixed valve seat 230, and is controlled by the driving device 240 to move to connect the water inlet channel 211 and the filter channel 213 or to connect the drainage channel 212 and the filter channel 213. Through the arrangement of the above structure, the hard sealing structure between the fixed valve seat 230 and the movable valve flap 220 can be utilized, and the scraper effect is formed by the rotation of the movable valve flap 220 and the stationary fixed valve seat 230, which plays a self-cleaning role on the sealing surface, so that the filtration system controlled by the ceramic hard-sealed three-way valve runs more stably.

[0019] As a specific implementation of the improvement, the movable valve flap 220 and the fixed valve seat 230 are both made of engineering ceramics such as alumina, silicon carbide or zirconium oxide. Engineering ceramics have high hardness, wear resistance, corrosion resistance and low friction. For this reason, in this embodiment, the movable valve flap 220 and the fixed valve seat 230 are both made of engineering ceramics, which can better realize the rotation of the movable valve flap 220 and the stationary fixed valve seat 230 to form a scraper effect, play a self-cleaning role on the sealing surface, and make the filtration system controlled by the ceramic hard-sealed three-way valve run more stably.

[0020] As an improved specific implementation method, the filter 100 and the three-way valve 200 are each provided with multiple ones, and one filter 100 and one three-way valve 200 form a group, which are arranged in groups along the length direction of the water inlet main pipe 1, the water outlet main pipe 2, and the sewage main pipe 3 and installed on the water inlet main pipe 1, the water outlet main pipe 2, and the sewage main pipe 3. By adopting the structural setting of the above-mentioned multiple groups of filters 100 and three-way valves 200, the backwashing sequence of the filters can be controlled by time or pressure difference through manual operation or program setting to further increase the flushing efficiency.

[0021] The two embodiments of the fixed valve seat 230 and the movable valve flap 220 are further described in detail below with reference to the accompanying drawings.

[0022] Example 1, reference Figures 1 to 3 As shown, the fixed valve seat 230 is a disc structure, fixedly installed at the intersection of the water inlet channel 211, the drainage channel 212 and the filter channel 213, and two through holes are opened on the fixed valve seat 230 to respectively connect the drainage channel 212 and the filter channel 213 and the water inlet channel 211 and the filter channel 213. The movable valve flap 220 is also a disc structure, and the movable valve flap 220 is coaxially rotatably attached to the fixed valve seat 230. The end surface of the movable valve flap 220 and the fixed valve seat 230 cooperate and seal with each other. The movable valve flap 220 is opened with a through hole, and the through hole is opened by the rotation of the movable valve flap 220. The two through holes on the fixed valve seat 230 are respectively connected to each other, thereby realizing the connection between the drainage channel 212 and the filter channel 213 or the water inlet channel 211 and the filter channel 213. In this embodiment, the fixed valve seat 230 and the movable valve flap 220 are made of engineering ceramics such as alumina, silicon carbide or zirconium oxide. The engineering ceramics have high hardness, wear resistance, corrosion resistance and low friction. The movable valve flap 220 rotates and forms a scraper with the stationary fixed valve seat 230, which plays a self-cleaning role on the sealing surface. The filtration system controlled by the ceramic hard-sealed three-way valve runs more stably. The working state of the filtration system of Example 1 is described in detail below.

[0023] Filter status:

[0024] like Figure 1 , Figure 2 As shown, the driving device 240 of the ceramic flat hard-sealed three-way valve 200 drives the movable valve disc 220 to rotate, so that the water inlet 211 of the ceramic flat hard-sealed three-way valve 200 is connected with the filter interface 213, and the fluid enters from the water inlet 211, flows into the filter through the filter interface 213 and the water inlet 101 of the filter 100, and flows into the water outlet main 2 from the water outlet 102 after filtering and purification.

[0025] Backwash status:

[0026] like Figure 1 , Figure 3As shown, the driving device 240 of the ceramic flat hard-sealed three-way valve 200 drives the movable valve disc 220 to rotate, so that the drain port 212 of the ceramic flat hard-sealed three-way valve 200 is connected to the filter interface 213, and the backwashing fluid enters from the water outlet 102 of the filter 100 to backwash the filter 100. The backwashing fluid flows out from the water inlet 101 of the filter 100 and enters the filter interface 213 of the ceramic flat hard-sealed three-way valve 200, and then enters the drainage main 3 from the drain port 212.

[0027] In Embodiment 2, the fixed valve seat 230 is a ball seat structure, which is fixedly installed at the intersection of the water inlet channel 211, the drainage channel 212 and the filter channel 213. The movable valve flap 220 is a spherical structure, which is rotatably installed on the fixed valve seat 230. A T-shaped channel is provided in the movable valve flap 220. The movable valve flap 220 rotates in the fixed valve seat 230 to connect the drainage channel 212 and the filter channel 213 or the water inlet channel 211 and the filter channel 213 through the T-shaped channel. In this embodiment, the ball seat 230 and the ball 220 are made of engineering ceramics such as alumina, silicon carbide or zirconium oxide. The engineering ceramics have high hardness, wear resistance, corrosion resistance and low friction. The rotating ball 220 and the stationary ball seat 230 form a scraper effect, which plays a self-cleaning role on the sealing surface. The filtration system controlled by the ceramic hard-sealed three-way valve runs more stably. The working state of the filtration system of Embodiment 2 is described in detail below.

[0028] Filter status:

[0029] like Figures 4 to 6 As shown, the ball 220 is driven to rotate by the driving device 240 of the ceramic spherical hard-sealed three-way valve 200, so that the water inlet 211 of the ceramic spherical hard-sealed three-way valve 200 is connected with the filter interface 213, and the fluid enters from the water inlet 211 through the filter interface 213 and the water inlet 101 of the filter 100 and flows into the filter, and after filtering and purification, it flows into the water outlet main pipe 2 from the water outlet 102.

[0030] Backwash status:

[0031] like Figure 4 , Figure 5 , Figure 7 As shown, the ball 220 is driven to rotate by the driving device 240 of the ceramic spherical hard-sealed three-way valve 200, so that the drain port 212 of the ceramic spherical hard-sealed three-way valve 200 is connected with the filter interface 213, and the backwashing fluid enters from the water outlet 102 of the filter 100 to backwash the filter 100. The backwashing fluid flows out from the water inlet 101 of the filter 100 and enters the filter interface 213 of the ceramic spherical hard-sealed three-way valve 200, and then enters the drainage main 3 from the drain port 212.

[0032] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A filtration system controlled by a ceramic hard-sealed three-way valve, comprising a water inlet main pipe (1), a water outlet main pipe (2), a sewage main pipe (3), a bracket (4), a filter (100) and a three-way valve (200), wherein the water inlet main pipe (1), the water outlet main pipe (2) and the sewage main pipe (3) are all mounted on the bracket (4), the filter (100) has a water inlet (101) and a water outlet (102), and the water outlet (102) is connected to the water outlet main pipe (2), characterized in that: The three-way valve (200) comprises a valve body (210), a movable valve flap (220), a fixed valve seat (230) and a driving device (240); a water inlet channel (211), a water discharge channel (212) and a filter channel (213) are provided in the valve body (210); the water inlet channel (211) is connected to a water inlet main pipe (1); the water discharge channel (212) is connected to a sewage main pipe (3); the filter channel (213) is connected to a water inlet (10 1), the fixed valve seat (230) is fixed at the intersection of the water inlet channel (211), the drainage channel (212) and the filter channel (213), the movable valve flap (220) is arranged on the fixed valve seat (230), is hard-sealed with the fixed valve seat (230), and is controlled by the driving device (240) to move so as to connect the water inlet channel (211) and the filter channel (213) or to connect the drainage channel (212) and the filter channel (213).

2. The filtration system controlled by a ceramic hard-sealed three-way valve according to claim 1, characterized in that: The movable valve flap (220) and the fixed valve seat (230) are both made of engineering ceramics such as alumina, silicon carbide or zirconium oxide.

3. The filtration system controlled by a ceramic hard-sealed three-way valve according to claim 1 or 2, characterized in that: The filter (100) and the three-way valve (200) are provided in plurality, and one filter (100) and one three-way valve (200) form a group, which are arranged in groups along the length direction of the water inlet main pipe (1), the water outlet main pipe (2), and the sewage main pipe (3) and installed on the water inlet main pipe (1), the water outlet main pipe (2), and the sewage main pipe (3).

4. The filtration system controlled by a ceramic hard-sealed three-way valve according to claim 1 or 2, characterized in that: The fixed valve seat (230) is a disc structure and is fixedly installed at the intersection of the water inlet channel (211), the drainage channel (212) and the filter channel (213). The fixed valve seat (230) is provided with two through holes respectively connecting the drainage channel (212) and the filter channel (213) and the water inlet channel (211) and the filter channel (213). The movable valve flap (220) is also a disc structure. The movable valve flap (220) is coaxially rotatably attached to the fixed valve seat (230). The end surface of the movable valve flap (220) and the fixed valve seat (230) cooperate and seal with each other. The movable valve flap (220) is provided with a through hole. The through hole is connected to the two through holes on the fixed valve seat (230) respectively by the rotation of the movable valve flap (220), thereby realizing the connection between the drainage channel (212) and the filter channel (213) or the water inlet channel (211) and the filter channel (213).

5. The filtration system controlled by a ceramic hard-sealed three-way valve according to claim 1 or 2, characterized in that: The fixed valve seat (230) is a ball seat structure, the water inlet channel (211), the drainage channel (212) and the filter channel (213) form a T-shape, the ball seat structure is fixed at the intersection of the T-shape, the movable valve flap (220) is a spherical structure, and is rotatably mounted on the ball seat structure. A T-shaped channel is provided in the spherical structure, and the spherical structure rotates in the ball seat structure to connect the drainage channel (212) and the filter channel (213) or the water inlet channel (211) and the filter channel (213) through the T-shaped channel.

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