Metering device for reducing agent special for membrane

Abstract

The utility model relates to the technical field of metering, and discloses a metering device for a reducing agent special for a membrane, which comprises a storage assembly and a sealing assembly arranged on the storage assembly, a metering assembly is arranged in the storage assembly, a backflow assembly is arranged on the metering assembly, and a replacement auxiliary assembly is arranged in the storage assembly. When the equipment pumps a reducing agent into the external oxidation pond, the rotating motor drives the rotating blades and liquid in the external oxidation pond to flow into the liquid outlet pipe through the backflow sleeve and the communicating pipe, the reducing agent remaining on the inner wall of the liquid outlet pipe is brought out and flows into the external oxidation pond again, it is guaranteed that the dosage of the reducing agent is accurate, and errors are avoided; and meanwhile, the liquid storage barrel is placed in the storage main shell, the power motor drives the threaded lead screw, the placement base and the liquid storage barrel are driven to move upwards under the meshing effect, and replacement of the liquid storage barrel is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of metrology, and more specifically to a membrane-specific reducing agent metering device. Background Technology

[0002] A membrane-specific reducing agent metering device is a device used to precisely control the amount of reducing agent injected. It is mainly used in reverse osmosis systems. This device injects the reducing agent solution into the feed water of the reverse osmosis system at a constant flow rate through a metering pump. This is used to eliminate residual chlorine and other oxidizing substances in the feed water, protect the reverse osmosis membrane from damage, improve the quality of the produced water, and extend the service life of the membrane.

[0003] In existing devices, when the reducing agent is introduced into the device to be reduced through the connecting pipe, the residual reducing agent in the connecting pipe is not completely discharged or removed, resulting in a deviation between the actual amount of reducing agent entering the device and the preset value. This affects the working efficiency and accuracy of the entire system. Such inaccurate measurement not only affects the quality of the final product, but may also cause unnecessary damage to the production equipment.

[0004] In addition, existing procedures usually require workers to manually lift the storage tank containing the old reducing agent out of the sealing device before replacing it with a new one. This process is not only time-consuming and labor-intensive, increasing the intensity of work, but may also cause safety hazards (such as leaks) if not handled properly. This is especially true for equipment that is large or located at a high position, which presents an additional challenge to maintenance personnel.

[0005] To address the aforementioned issues, this application provides a membrane-specific reducing agent metering device. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a membrane-specific reducing agent metering device to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a membrane-specific reducing agent metering device, comprising a storage component and a sealing component installed on the storage component, wherein a metering component is provided inside the storage component, a reflux component is installed on the metering component, and a replacement auxiliary component is installed inside the storage component;

[0008] Preferably, the storage assembly includes a main storage housing, a supporting base plate, and supporting feet, wherein supporting base plates are fixedly installed at the four corners of the bottom of the supporting base plate as supports, and the main storage housing is fixedly installed above the supporting base plate.

[0009] Preferably, the sealing assembly includes a sealing cap, an upper fixing plate, a lower fixing plate, an upper snap-fit ​​block, a lower snap-fit ​​block, a rotating column, and a sealing ring. The sealing cap is snapped onto the top of the main storage housing. The sealing ring is positioned at the contact point between the main storage housing and the sealing cap. The upper fixing plate is fixedly installed on the side wall of the sealing cap. The lower fixing plate is positioned directly below the upper fixing plate and fixedly installed on the side wall of the main storage housing. The upper snap-fit ​​block and the rotating column are respectively fixedly installed on the upper and lower fixing plates and are movably snapped together by the lower snap-fit ​​block. At this time, by rotating the sealing cap along the rotating column until it is in contact with the main storage housing, the liquid storage tank is sealed and preserved under the combined action of the sealing ring.

[0010] Preferably, the metering assembly includes a storage tank, an inlet pipe, a metering pump, an outlet pipe, and an external oxidation tank. The storage tank is located inside the main housing. One end of the inlet pipe passes through a sealing cap and is connected to the storage tank. The other end of the inlet pipe is fixedly installed at the inlet of the metering pump and is connected to it. The outlet of the metering pump is fixedly connected to the outlet pipe and is connected to it. An external oxidation tank is located below the outlet of the outlet pipe, which is away from the metering pump. In this case, the metering pump meter and extracts the reducing agent inside the storage tank through the inlet pipe and pumps it into the external oxidation tank through the outlet pipe.

[0011] Preferably, the reflux assembly includes a limiting sleeve, a reflux sleeve, a rotary motor, a positioning plate, a rotating blade, a connecting sleeve, and a connecting pipe. One end of the connecting pipe is connected to a metering pump, and the other end is connected to the connecting sleeve. The limiting sleeve is fixedly installed on the side wall of the external oxidation tank. The reflux sleeve is fixedly fitted onto the limiting sleeve and connected to the external oxidation tank. The end of the reflux sleeve furthest from the limiting sleeve is fixedly fitted onto and connected to the connecting sleeve. The positioning plate is fixedly snapped onto the side wall of the reflux sleeve. The rotary motor is fixedly installed on the positioning plate. The rotary motor drive shaft is fixedly fitted onto the rotating blade. At this time, the rotary motor drive shaft drives the rotating blade. Under the rotation of the rotating blade, the liquid inside the external oxidation tank flows into the outlet pipe through the reflux sleeve and the connecting pipe, carrying away the residual reducing agent remaining on the inner wall of the outlet pipe and allowing it to flow back into the external oxidation tank.

[0012] Preferably, the replacement auxiliary components include a placement base, an annular slider, a power motor, a threaded screw, and a round rod. The placement base is movably engaged with the lower half of the inner cavity of the main storage housing, and the annular slider is movably engaged with the upper half of the inner cavity of the main storage housing. The liquid storage tank is placed on the placement base, and the upper half is movably engaged with the annular slider. The power motor is fixedly installed below the annular slider, and the power motor drive shaft is fixedly sleeved with the threaded screw. The threaded screw is threadedly sleeved with the placement base, and the top of the round rod is fixedly engaged with the annular slider. The middle section of the round rod is movably engaged with the placement base. At this time, the power motor drive shaft drives the threaded screw, and under the meshing action between the threaded screw and the placement base, the placement base and the external oxidation tank move upward, allowing the external oxidation tank to be removed for replacement.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] When the equipment pumps the reducing agent into the external oxidation tank, the rotary motor drives the rotating blades. The liquid inside the external oxidation tank flows into the outlet pipe through the return sleeve and connecting pipe, and carries out the remaining reducing agent on the inner wall of the outlet pipe and flows back into the external oxidation tank, ensuring accurate dosage of reducing agent and avoiding errors. At the same time, the storage tank is placed inside the main housing. The power motor drives the threaded screw, which moves the placement base and storage tank upward through meshing, making it easier to replace the storage tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the four-dimensional structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. Storage component; 101. Storage main housing; 102. Support base plate; 103. Support foot; 2. Sealing component; 201. Sealing cover; 202. Upper fixing plate; 203. Lower fixing plate; 204. Upper snap-fit ​​block; 205. Lower snap-fit ​​block; 206. Rotating column; 207. Sealing ring; 3. Metering component; 301. Liquid storage tank; 302. Liquid inlet pipe; 303. Metering pump; 304. Liquid outlet pipe; 305. External oxidation tank; 4. Reflux component; 401. Limiting sleeve; 402. Reflux sleeve; 403. Rotary motor; 404. Positioning plate; 405. Rotating blade; 406. Connecting sleeve; 407. Connecting pipe; 5. Replacement auxiliary component; 501. Placement base; 502. Annular slider; 503. Power motor; 504. Threaded screw; 505. Round rod. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The membrane-specific reducing agent metering device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figure 1 and Figure 2 This utility model provides a membrane-specific reducing agent metering device, including a storage component 1 and a sealing component 2 installed on the storage component 1. A metering component 3 is provided inside the storage component 1, a reflux component 4 is installed on the metering component 3, and a replacement auxiliary component 5 is installed inside the storage component 1.

[0022] Reference Figure 1 and Figure 2 The storage component 1 includes a main storage housing 101, a support base plate 102 and support feet 103, wherein the support base plate 102 is fixedly installed at the four corners of its bottom as a support, and the main storage housing 101 is fixedly installed above the support base plate 102.

[0023] Reference Figure 1 and Figure 3The sealing assembly 2 includes a sealing cover 201, an upper fixing piece 202, a lower fixing piece 203, an upper snap-fit ​​block 204, a lower snap-fit ​​block 205, a rotating column 206, and a sealing ring 207. The sealing cover 201 is snapped onto the upper part of the main housing 101. The sealing ring 207 is located at the contact point between the main housing 101 and the sealing cover 201. The upper fixing piece 202 is fixedly installed on the side wall of the sealing cover 201. The lower fixing piece 203 is located directly below the upper fixing piece 202 and fixedly installed on the side wall of the main housing 101. The upper snap-fit ​​block 204 and the rotating column 206 are respectively fixedly installed on the upper fixing piece 202 and the lower fixing piece 203, and are movably snapped together by the lower snap-fit ​​block 205. At this time, by rotating the sealing cover 201 along the rotating column 206 to fit against the main housing 101, the liquid storage tank 301 is sealed and preserved under the combined action of the sealing ring 207.

[0024] Reference Figure 1 and Figure 2 The metering component 3 includes a storage tank 301, an inlet pipe 302, a metering pump 303, an outlet pipe 304, and an external oxidation tank 305. The storage tank 301 is located inside the main housing 101. One end of the inlet pipe 302 passes through the sealing cap 201 and is connected to the storage tank 301. The other end of the inlet pipe 302 is fixedly installed at the pump inlet of the metering pump 303 and is connected to it. The pump outlet of the metering pump 303 is fixedly connected to the outlet pipe 304 and is connected to it. The external oxidation tank 305 is located below the outlet of the outlet pipe 304, which is away from the metering pump 303. At this time, the metering pump 303 meter and extracts the reducing agent inside the storage tank 301 through the inlet pipe 302 and pumps it into the external oxidation tank 305 through the outlet pipe 304.

[0025] Reference Figure 2 and Figure 4 The reflux assembly 4 includes a limiting sleeve 401, a reflux sleeve 402, a rotary motor 403, a positioning plate 404, a rotating blade 405, a connecting sleeve 406, and a connecting pipe 407. One end of the connecting pipe 407 is connected to the metering pump 303, and the other end is connected to the connecting sleeve 406. The limiting sleeve 401 is fixedly installed on the side wall of the external oxidation tank 305. The reflux sleeve 402 is fixedly sleeved on the limiting sleeve 401 and connected to the external oxidation tank 305. The end of the reflux sleeve 402 away from the limiting sleeve 401 is fixedly sleeved on the connecting sleeve 406 and connected to the external oxidation tank 305. The components are connected, with the positioning plate 404 fixedly snapped onto the side wall of the return sleeve 402, and the rotary motor 403 fixedly installed on the positioning plate 404. The drive shaft of the rotary motor 403 is fixedly sleeved onto the rotary blade 405. At this time, the drive shaft of the rotary motor 403 drives the rotary blade 405. Under the rotation of the rotary blade 405, the liquid inside the external oxidation tank 305 flows into the outlet pipe 304 through the return sleeve 402 and the connecting pipe 407, and carries out the residual reducing agent on the inner wall of the outlet pipe 304 and re-flows into the external oxidation tank 305.

[0026] Reference Figure 1 and Figure 2 The replacement auxiliary component 5 includes a placement base 501, an annular slider 502, a power motor 503, a threaded screw 504, and a round rod 505. The placement base 501 is movably engaged with the lower half of the inner cavity of the main housing 101, and the annular slider 502 is movably engaged with the upper half of the inner cavity of the main housing 101. The liquid storage tank 301 is placed on the placement base 501, with its upper half movably engaged with the annular slider 502. The power motor 503 is fixedly installed below the annular slider 502. The drive shaft of the power motor 503 is fixedly connected to the threaded screw 504, which is threadedly connected to the placement base 501. The top of the round rod 505 is fixedly engaged with the annular slider 502, and the middle section of the round rod 505 is movably engaged with the placement base 501. At this time, the drive shaft of the power motor 503 drives the threaded screw 504, and under the meshing action between the threaded screw 504 and the placement base 501, the placement base 501 and the liquid storage tank 301 are moved upward, and the liquid storage tank 301 is taken out for replacement.

[0027] The working principle of this utility model is as follows: When the equipment is working, the metering pump 303 meterly extracts the reducing agent inside the storage tank 301 through the inlet pipe 302 and pumps it into the external oxidation tank 305 through the outlet pipe 304. During use, the storage tank 301 is placed inside the main housing 101, and the sealing cap 201 rotates along the rotating column 206 to fit against the main housing 101. Together with the sealing ring 207, the storage tank 301 is sealed and stored. When the reducing agent is used up and the external oxidation tank 305 is replaced, the drive motor 503 drives the threaded... The lead screw 504, through meshing with the placement base 501, drives the placement base 501 and the storage tank 301 to move upward. At this time, the storage tank 301 is removed for replacement. When the reducing agent is pumped into the external oxidation tank 305, the drive shaft of the rotary motor 403 drives the rotary vane 405. Under the rotation of the rotary vane 405, the liquid inside the external oxidation tank 305 flows into the outlet pipe 304 through the return sleeve 402 and the connecting pipe 407, and carries out the reducing agent remaining on the inner wall of the outlet pipe 304 and flows back into the external oxidation tank 305.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film-specific reducing agent metering device comprising a storage assembly (1) and a sealing assembly (2) mounted on the storage assembly (1), characterized in that: The storage assembly (1) is internally provided with a metering assembly (3), the metering assembly (3) is installed with a backflow assembly (4), the storage assembly (1) is internally installed with a replacement auxiliary assembly (5), the metering assembly (3) comprises an external oxidation tank (305), the backflow assembly (4) comprises a limiting sleeve (401), a backflow sleeve (402), a rotary motor (403), a positioning sheet (404), a rotary blade (405), a connecting sleeve (406) and a communication pipe (407), one end of the communication pipe (407) is communicated with a metering pump (303), the other end is communicated with the connecting sleeve (406), the limiting sleeve (401) is fixedly installed on the side wall of the external oxidation tank (305), the backflow sleeve (402) is fixedly sleeved with the limiting sleeve (401) and is communicated with the external oxidation tank (305), one end of the backflow sleeve (402) away from the limiting sleeve (401) is fixedly sleeved with the connecting sleeve (406) and is communicated therewith, the positioning sheet (404) is fixedly clamped on the side wall of the backflow sleeve (402), the rotary motor (403) is fixedly installed on the positioning sheet (404), and the transmission shaft of the rotary motor (403) is fixedly sleeved with the rotary blade (405).

2. A membrane-specific reducing agent dosing device according to claim 1, characterized in that: The storage assembly (1) comprises a storage main shell (101), a supporting bottom plate (102) and a supporting leg (103), wherein the supporting bottom plate (102) is fixedly installed at the bottom of four corners as a support, and the storage main shell (101) is fixedly installed above the supporting bottom plate (102).

3. A membrane-specific reducing agent dosing device according to claim 2, characterized in that: The sealing assembly (2) comprises a sealing cover (201), an upper fixed sheet (202), a lower fixed sheet (203), an upper clamping block (204), a lower clamping block (205), a rotary column (206) and a sealing rubber ring (207), wherein the sealing cover (201) is clamped above the storage main shell (101), the sealing rubber ring (207) is arranged at the abutting position of the storage main shell (101) and the sealing cover (201), the upper fixed sheet (202) is fixedly installed on the side wall of the sealing cover (201), the lower fixed sheet (203) is arranged directly below the upper fixed sheet (202) and is fixedly installed on the side wall of the storage main shell (101), and the upper clamping block (204) and the rotary column (206) are respectively fixedly installed on the upper fixed sheet (202) and the lower fixed sheet (203) and are movably clamped through the lower clamping block (205).

4. A membrane-specific reducing agent dosing device according to claim 2, characterized in that: Said metering assembly (3) includes liquid storage barrel (301), liquid inlet pipe (302), metering pump (303), liquid outlet pipe (304) and external oxidation tank (305), wherein the liquid storage barrel (301) is arranged in the inner cavity of the storage main shell (101), one end of the liquid inlet pipe (302) penetrates through the sealing cover (201) and is connected with the liquid storage barrel (301), the other end of the liquid inlet pipe (302) is fixedly installed on the pump inlet of the metering pump (303) and is connected with the same, the pump outlet of the metering pump (303) is fixedly connected with the liquid outlet pipe (304) and is connected with the same, and the external oxidation tank (305) is arranged below the outlet of the other end of the liquid outlet pipe (304) away from the metering pump (303).

5. A membrane-specific reducing agent dosing device according to claim 4, characterized in that: Said replacement auxiliary assembly (5) includes placement base (501), annular slide block (502), power motor (503), threaded lead screw (504) and round rod (505), wherein the placement base (501) is movably clamped in the lower half of the inner cavity of the storage main shell (101), the annular slide block (502) is movably clamped in the upper half of the inner cavity of the storage main shell (101), the liquid storage barrel (301) is placed on the placement base (501), and the upper half is movably clamped with the annular slide block (502), the power motor (503) is fixedly installed below the annular slide block (502), the transmission shaft of the power motor (503) is fixedly sleeved with the threaded lead screw (504), the threaded lead screw (504) is threadedly sleeved with the placement base (501), the top of the round rod (505) is fixedly clamped with the annular slide block (502), and the middle segment of the round rod (505) is movably clamped with the placement base (501).

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