CN212334822U - Sewage treatment device with sewage circulation treatment function - Google Patents
Sewage treatment device with sewage circulation treatment function Download PDFInfo
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- CN212334822U CN212334822U CN201922432057.XU CN201922432057U CN212334822U CN 212334822 U CN212334822 U CN 212334822U CN 201922432057 U CN201922432057 U CN 201922432057U CN 212334822 U CN212334822 U CN 212334822U
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- electromagnetic valve
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- stirring
- tank
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Abstract
The utility model discloses a sewage treatment plant with sewage cycle processing function, include: the utility model relates to the technical field of sewage treatment equipment, wherein waste liquid flows into a stirring tank through a pipeline and is stirred through the rotation of a stirring rod, so that the waste liquid is uniformly mixed; then the wastewater is discharged into an aeration tank for oxygen flushing to oxidize and decompose harmful substances in the wastewater; finally, the mixture enters a sedimentation tank for sedimentation; by controlling the opening and closing directions of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, the clean water or the sludge is discharged or the sludge machine is recycled through the driving of a third sewage pump; the design can be added with a medicament to fully dissolve and oxidize reaction, so that the discharged sludge or wastewater is prevented from containing a large amount of harmful substances, and the precipitated sludge can be recycled and effectively utilized.
Description
Technical Field
The utility model relates to a sewage treatment device technical field specifically is a sewage treatment plant with sewage cycle processing function.
Background
The sewage treatment is a sewage treatment process for purifying sewage to reach a certain use standard or cleanliness standard; sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people;
the traditional sewage treatment method comprises the steps of filtering and draining particulate matters or impurities in sewage, and then disinfecting the sewage to finish the sewage treatment; it has the following disadvantages: because the sludge or the wastewater usually contains a large amount of harmful substances, the sludge or the wastewater is not decomposed and directly discarded, and the environment is adversely affected; the degradation by adding a medicament cannot fully dissolve the oxidation reaction, and organic matters are removed; the precipitated sludge and a small amount of sewage can not be effectively utilized; therefore, in order to solve the above problems, a sewage treatment apparatus having a sewage circulation treatment function has been devised.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage treatment plant with sewage cycle processing function to solve and add the abundant oxidation reaction that dissolves of medicament, prevent to contain a large amount of harmful substance in discharge mud or the waste water, effectively utilize the mud after the sediment simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: a sewage treatment apparatus having a sewage circulation treatment function, comprising: the main body box is of a rectangular box structure, the right side wall of the main body box is provided with an air inlet, the front end and the rear end of the layered plate are fixedly welded on the front side wall surface and the rear side wall surface in the main body box respectively, and a stirring and mixing structure, an aeration and sedimentation structure and a branch circulation discharge structure are arranged in the main body box;
the stirring and mixing structure comprises: the waste liquid tank, the water inlet pipe, the stirring tank, the mounting box, the motor and the stirring rod;
the waste liquid pool is fixedly arranged in the main body box, is positioned on the upper wall surface of the layered plate and is positioned at the left end, one end of the water inlet pipe penetrates through the left side wall of the main body box and is connected to the waste liquid pool, the stirring pool is fixedly welded on the upper wall surface of the layered plate and is positioned at the right side of the waste liquid pool and is connected with a waste liquid pool pipeline, the mounting box is fixedly welded on the stirring pool, the motor is fixedly arranged in the mounting box, one end of the stirring rod is fixedly welded at the driving end of the motor, the other end of the stirring rod is movably inserted into the upper wall of the stirring pool and is positioned at the central part, and a plurality of stirring plates with the same structure are arranged at;
the aeration and sedimentation structure comprises: the system comprises an aeration tank, a first sewage pump, a blower, a shunt exhaust pipe, an air inlet pipe, a sedimentation tank, a three-way pipe and a second sewage pump;
the aeration tank is fixedly welded on the upper wall surface of the layered plate and is positioned on the right side of the stirring tank, the first sewage pump is fixedly arranged on the upper wall surface of the layered plate and is positioned between the stirring tank and the aeration tank, the water inlet end of the first sewage pump is connected with a pipeline of the stirring tank, the water outlet end of the first sewage pump is connected with a pipeline of the aeration tank, the blower is fixedly arranged on the upper wall surface of the layered plate and is positioned at the air inlet at the right end, the branched exhaust pipe is fixedly arranged on the lower wall surface in the aeration tank and is positioned at the central part, a plurality of exhaust holes with the same structure are formed in the branched exhaust pipe, one end of the air inlet pipe is connected to the air outlet of the blower, the other end of the air inlet pipe penetrates through the right side wall of the aeration tank and is connected to the branched exhaust pipe, the sedimentation tank is fixedly arranged on the, and the water inlet end of the three-way pipe is connected with the pipeline of the aeration tank, and the water outlet end of the three-way pipe is connected with the pipeline at the other end of the three-way pipe.
Preferably, the branched circulation discharge structure includes: the sewage treatment system comprises a third sewage pump, a first electromagnetic valve, a second electromagnetic valve, a drain pipe, a third electromagnetic valve, a return pipe and a sludge discharge pipe;
the third sewage pump is fixedly arranged on the lower wall surface in the main body box and is positioned on the left side of the central sedimentation tank, wherein two ports of the first electromagnetic valve are connected with the pipeline of the sedimentation tank and are respectively connected with the bottom end and the central part of the left side wall of the sedimentation tank, the other end of the second electromagnetic valve is connected with a water inlet end pipeline of a third sewage pump, a right port pipeline of the second electromagnetic valve is connected with the water outlet end of the third sewage pump, one end of the drain pipe is connected with the bottom end of the second electromagnetic valve, and the other end of the return pipe is fixedly penetrated in the left side wall of the main body box, the bottom end pipeline of the third electromagnetic valve is connected with the top end of the second electromagnetic valve, one end of the return pipe is connected with the right end of the third electromagnetic valve, the other end of the sludge discharge pipe penetrates through the layered plate and is embedded in the lower wall of the stirring tank, one end of the sludge discharge pipe is connected to the left side of the third electromagnetic valve, and the other end of the sludge discharge pipe penetrates through the left side wall of the main body box and is positioned above the water discharge pipe.
Preferably, the first solenoid valve, the second solenoid valve and the third solenoid valve are all three-way solenoid valves with the same structure.
Preferably, a pair of filter barrels with the same structure are arranged in the settling tank and are respectively connected to two ends of the three-way pipe.
Preferably, a medicament can be added into the aeration tank.
Preferably, the air inlet pipe is a corrugated hose.
Preferably, a bearing is arranged between the stirring rod and the upper wall of the stirring pool and is in interference fit with the upper wall of the stirring pool
Compared with the prior art, the beneficial effects of the utility model are that: according to the sewage treatment device with the sewage circulation treatment function, waste liquid firstly enters the waste liquid tank through the water inlet pipe to be accumulated and wait for treatment; the pipeline flows into the stirring tank, and the motor is controlled to drive the stirring rod to rotate so as to stir the waste liquid in the stirring tank; uniformly mixing the waste liquid; pumping the mixed liquid into an aeration tank by a first sewage pump, and flushing oxygen into the mixed liquid in the tank by controlling a blower to oxidize and decompose harmful substances in the mixed liquid; pumping the sewage into a sedimentation tank through a second sewage pump, filtering the sewage through a filter vat, and then settling the sewage; the upper clear water or the soil at the bottom layer in the sedimentation tank is pumped out by controlling the opening and closing direction of the first electromagnetic valve and driving through the third sewage pump, and the upper clear water or the soil at the bottom layer is discharged or circularly recycled by controlling the closing and closing direction of the second electromagnetic valve and controlling the third electromagnetic valve; the design can be added with a medicament to fully dissolve and oxidize reaction, so that the discharged sludge or wastewater is prevented from containing a large amount of harmful substances, and the precipitated sludge can be recycled and effectively utilized.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the external structure of the stirring rod of the present invention;
fig. 3 is a schematic diagram of the schematic block diagram structure of the present invention.
In the figure: 1. the device comprises a main body box, 2, a layered plate, 3, a waste liquid tank, 4, a water inlet pipe, 5, a stirring tank, 6, an installation box, 7, a motor, 8, a stirring rod, 9, an aeration tank, 10, a first sewage pump, 11, an air blower, 12, a shunt exhaust pipe, 13, an air inlet pipe, 14, a sedimentation tank, 15, a three-way pipe, 16, a second sewage pump, 17, a third sewage pump, 18, a first electromagnetic valve, 19, a second electromagnetic valve, 20, a water discharge pipe, 21, a third electromagnetic valve, 22, a return pipe, 23, a sludge discharge pipe, 24, a filter barrel, 25 and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a sewage treatment apparatus having a sewage circulation treatment function, comprising: the main body box 1 is a rectangular box body structure, an air inlet is formed in the right side wall of the main body box 1, the front end and the rear end of the layered plate 2 are fixedly welded to the front side wall surface and the rear side wall surface in the main body box 1 respectively, and a stirring and mixing structure, an aeration and sedimentation structure and a branch circulation discharge structure are installed in the main body box 1; a stirring mixing structure comprising: the device comprises a waste liquid pool 3, a water inlet pipe 4, a stirring pool 5, an installation box 6, a motor 7 and a stirring rod 8; the waste liquid pool 3 is fixedly arranged in the main body box 1, is positioned on the upper wall surface of the layered plate 2 and is positioned at the left end, one end of a water inlet pipe 4 penetrates through the left side wall of the main body box 1 and is connected to the waste liquid pool 3, the stirring pool 5 is fixedly welded on the upper wall surface of the layered plate 2 and is positioned at the right side of the waste liquid pool 3 and is connected with a waste liquid pool 3 through a pipeline, the mounting box 6 is fixedly welded on the stirring pool 5, the motor 7 is fixedly arranged in the mounting box 6, one end of the stirring rod 8 is fixedly welded at the driving end of the motor 7, the other end of the stirring rod is movably inserted into the upper wall of the stirring pool 5 and is positioned at the central part, and a plurality of stirring; the waste liquid and the solid matter can be uniformly mixed, and the later decomposition is convenient; an aerated precipitation structure comprising: the system comprises an aeration tank 9, a first sewage pump 10, a blower 11, a shunt exhaust pipe 12, an air inlet pipe 13, a sedimentation tank 14, a three-way pipe 15 and a second sewage pump 16; the aeration tank 9 is fixedly welded on the upper wall surface of the layered plate 2 and is positioned at the right side of the stirring tank 5, the first sewage pump 10 is fixedly arranged on the upper wall surface of the layered plate 2 and is positioned between the stirring tank 5 and the aeration tank 9, the water inlet end of the first sewage pump is connected with the pipeline of the stirring tank 5, the water outlet end of the first sewage pump is connected with the pipeline of the aeration tank 9, the air blower 11 is fixedly arranged on the upper wall surface of the layered plate 2 and is positioned at the air inlet at the right end, the branch exhaust pipe 12 is fixedly arranged on the lower wall surface in the aeration tank 9 and is positioned at the central part, a plurality of exhaust holes with the same structure are arranged on the branch exhaust pipe, one end of the air inlet pipe 13 is connected with the air outlet of the air blower 11, the other end of the air inlet pipe penetrates through the right side wall of the aeration tank 9 and is connected with the branch exhaust pipe 12, the sedimentation tank 14 is fixedly, the water inlet end of the three-way pipe is connected with the pipeline of the aeration tank 9, and the water outlet end of the three-way pipe is connected with the pipeline at the other end of the three-way pipe 15; through the aeration and precipitation structure, oxygen can be filled into the mixed waste liquid, so that organic matters in the mixed waste liquid are oxidized and decomposed.
The following electric devices have the following types and functions:
a first sewage pump: it is prior art, as long as the dredge pump that is applicable to this scheme all can use.
A second sewage pump: it is prior art, as long as the dredge pump that is applicable to this scheme all can use.
A third sewage pump: it is prior art, as long as the dredge pump that is applicable to this scheme all can use.
A motor: it is prior art, as long as the motor that is applicable to this scheme all can use.
A blower: it is prior art, as long as the air-blower that is applicable to this scheme all can use.
A first electromagnetic valve: it is prior art, as long as the solenoid valve that is applicable to this scheme all can use.
Preferably, the branched circulation discharge structure further includes: a third sewage pump 17, a first solenoid valve 18, a second solenoid valve 19, a drain pipe 20, a third solenoid valve 21, a return pipe 22 and a sludge discharge pipe 23;
a third sewage pump 17 is fixedly arranged on the inner lower wall surface of the main body box 1 and is positioned on the left side of the central sedimentation tank 14, two ports of a first electromagnetic valve 18 are connected with the sedimentation tank 14 through pipelines, and are respectively connected with the bottom end and the central part of the left side wall of the sedimentation tank 14, and the other end of the first electromagnetic valve is connected with a water inlet end pipeline of the third sewage pump 17, a right port pipeline of a second electromagnetic valve 19 is connected with the water outlet end of the third sewage pump 17, one end of a drain pipe 20 is connected with the bottom end of the second electromagnetic valve 19, and the other end of the drain pipe is fixedly penetrated in the left side wall of the main body box 1, a bottom end pipeline of the third electromagnetic valve 21 is connected with the top end of the second electromagnetic valve 19, one end of a return pipe 22 is connected with the right end of the third electromagnetic valve 21, the other end of the return pipe is penetrated in the layered plate 2 and is embedded, and is located above the drain pipe 20.
Preferably, the first solenoid valve 18, the second solenoid valve 19 and the third solenoid valve 21 are three-way solenoid valves with the same structure, and are used for designing requirements and facilitating communication control.
Preferably, a pair of filtering barrels 24 with the same structure are arranged in the settling tank and are respectively connected to two ends of the three-way pipe 15 for filtering.
Preferably, a medicament can be added into the aeration tank 9 to enhance the decomposition of harmful substances in the waste liquid.
Preferably, the air inlet pipe 13 is a corrugated hose for easy installation.
Preferably, a bearing 25 is installed between the stirring rod 8 and the upper wall of the stirring tank 5, and the bearing is in interference fit with the upper wall of the stirring tank 5, so that the stirring rod 8 can rotate conveniently.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): as can be seen from the attached figures 1-3 of the specification, firstly, after the equipment is powered on, waste liquid firstly enters a waste liquid pool 3 on a layered plate 2 in a main body box 1 through a water inlet pipe 4 to be accumulated and wait for treatment; the waste liquid can flow into the stirring pool 5 through a pipeline, and the motor 7 in the installation box 6 is controlled to drive the stirring rod 8 to rotate through the bearing 25 so as to stir the waste liquid in the waste liquid, so that the liquid in the waste liquid is uniformly mixed with the solid; pumping the sewage into the aeration tank 9 by a first sewage pump 10, conveying the sewage by an air inlet pipe 13 by controlling the driving of an air blower 11, and carrying out a large amount of oxygen flushing on the mixed liquid in the aeration tank 9 by a shunt exhaust pipe 12 to oxidize and decompose harmful substances in the sewage; after being pumped out by a second sewage pump 16 through a three-way pipe 15, the sewage is filtered by a filter barrel 24 and is precipitated in a sedimentation tank 14; after sedimentation, the first solenoid valve 18 is controlled to open and close, the third sewage pump 17 is driven to pump out the upper clear water or the bottom sludge in the sedimentation tank 14, the clear water can be discharged through the drain pipe 20 or the sludge can be discharged into the third solenoid valve 21 by controlling the second solenoid valve 19 to close, and the sludge can enter the stirring tank through the return pipe 22 to be subjected to active utilization again or be discharged through the sludge discharge pipe 23 by controlling the third solenoid valve 21 to open and close.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless otherwise expressly stated or limited, the terms "fixedly disposed," "fixedly welded," "tube-to-tube," "fixedly embedded," and the like are to be construed broadly, e.g., as fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A sewage treatment apparatus having a sewage circulation treatment function, comprising: the device comprises a main box (1) and a layered plate (2), and is characterized in that the main box (1) is of a rectangular box structure, an air inlet is formed in the right side wall of the main box, the front end and the rear end of the layered plate (2) are fixedly welded to the front side wall surface and the rear side wall surface in the main box (1) respectively, and a stirring and mixing structure, an aeration and sedimentation structure and a shunting circulation discharge structure are installed in the main box (1);
the stirring and mixing structure comprises: the device comprises a waste liquid pool (3), a water inlet pipe (4), a stirring pool (5), a mounting box (6), a motor (7) and a stirring rod (8);
the waste liquid pool (3) is fixedly arranged in the main body box (1), is positioned on the upper wall surface of the layered plate (2), and is positioned at the left end, one end of the water inlet pipe (4) penetrates through the left side wall of the main body box (1) and is connected to the waste liquid pool (3), the stirring pool (5) is fixedly welded on the upper wall surface of the layered plate (2), is positioned at the right side of the waste liquid pool (3) and is connected with a pipeline of the waste liquid pool (3), the mounting box (6) is fixedly welded on the stirring pool (5), the motor (7) is fixedly arranged in the mounting box (6), one end of the stirring rod (8) is fixedly welded at the driving end of the motor (7), the other end of the stirring rod is movably inserted in the upper wall of the stirring pool (5) and is positioned at the central part, and the other end of the stirring rod is provided with a plurality of stirring plates with staggered;
the aeration and sedimentation structure comprises: the system comprises an aeration tank (9), a first sewage pump (10), a blower (11), a shunt exhaust pipe (12), an air inlet pipe (13), a sedimentation tank (14), a three-way pipe (15) and a second sewage pump (16);
the aeration tank (9) is fixedly welded on the upper wall surface of the layered plate (2) and is positioned at the right side of the stirring tank (5), the first sewage pump (10) is fixedly arranged on the upper wall surface of the layered plate (2) and is positioned between the stirring tank (5) and the aeration tank (9), the water inlet end of the first sewage pump is connected with a pipeline of the stirring tank (5), the water outlet end of the first sewage pump is connected with a pipeline of the aeration tank (9), the air blower (11) is fixedly arranged on the upper wall surface of the layered plate (2) and is positioned at the air inlet at the right end, the shunt exhaust pipe (12) is fixedly arranged on the lower wall surface in the aeration tank (9) and is positioned at the central part and is provided with a plurality of exhaust holes with the same structure, one end of the air inlet pipe (13) is connected to the air outlet of the air blower (11), the other end of the air inlet pipe penetrates through the right side wall of the aeration tank (9) and is connected to the shunt, and the three-way pipe (15) is positioned at the right end, two ends of the three-way pipe are respectively inserted into the upper wall of the sedimentation tank (14), the second sewage pump (16) is arranged on the upper wall of the aeration tank (9), the water inlet end of the second sewage pump is connected with the pipeline of the aeration tank (9), and the water outlet end of the second sewage pump is connected with the pipeline at the other end of the three-way pipe (15).
2. The sewage treatment device with the sewage circulation treatment function according to claim 1, wherein: the bifurcating circulating discharge structure includes: a third sewage pump (17), a first electromagnetic valve (18), a second electromagnetic valve (19), a drain pipe (20), a third electromagnetic valve (21), a return pipe (22) and a mud pipe (23);
the third sewage pump (17) is fixedly arranged on the inner lower wall surface of the main body box (1) and is positioned on the left side of the central sedimentation tank (14), two ports of the first electromagnetic valve (18) are connected with the sedimentation tank (14) through pipelines, and are respectively connected with the bottom end and the central part of the left side wall of the sedimentation tank (14), and the other end of the first electromagnetic valve is connected with a water inlet end pipeline of the third sewage pump (17), a right port pipeline of the second electromagnetic valve (19) is connected with the water outlet end of the third sewage pump (17), one end of the drain pipe (20) is connected with the bottom end of the second electromagnetic valve (19), and the other end of the drain pipe is fixedly penetrated through the left side wall of the main body box (1), a bottom pipeline of the third electromagnetic valve (21) is connected with the top end of the second electromagnetic valve (19), one end of the return pipe (22) is connected with the right end of the third electromagnetic valve (21), and the other end of the return pipe penetrates through the layered, one end of the sludge discharge pipe (23) is connected to the left side of the third electromagnetic valve (21), and the other end of the sludge discharge pipe penetrates through the left side wall of the main body box (1) and is positioned above the drainage pipe (20).
3. The sewage treatment device with the sewage circulation treatment function according to claim 2, wherein: the first electromagnetic valve (18), the second electromagnetic valve (19) and the third electromagnetic valve (21) are all three-way electromagnetic valves with the same structure.
4. The sewage treatment device with the sewage circulation treatment function according to claim 1, wherein: a pair of filter barrels (24) with the same structure are arranged in the settling tank and are respectively connected to the two ends of the three-way pipe (15).
5. The sewage treatment device with the sewage circulation treatment function according to claim 1, wherein: the aeration tank (9) can be added with medicament.
6. The sewage treatment device with the sewage circulation treatment function according to claim 1, wherein: the air inlet pipe (13) is a corrugated hose.
7. The sewage treatment device with the sewage circulation treatment function according to claim 1, wherein: and a bearing (25) is arranged between the stirring rod (8) and the upper wall of the stirring pool (5), and is in interference fit with the upper wall of the stirring pool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922432057.XU CN212334822U (en) | 2019-12-30 | 2019-12-30 | Sewage treatment device with sewage circulation treatment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922432057.XU CN212334822U (en) | 2019-12-30 | 2019-12-30 | Sewage treatment device with sewage circulation treatment function |
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| Publication Number | Publication Date |
|---|---|
| CN212334822U true CN212334822U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922432057.XU Expired - Fee Related CN212334822U (en) | 2019-12-30 | 2019-12-30 | Sewage treatment device with sewage circulation treatment function |
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| Country | Link |
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| CN (1) | CN212334822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307429A (en) * | 2021-06-17 | 2021-08-27 | 唐山市蓝翔环保设备有限公司 | Environment-friendly sewage treatment equipment and using method thereof |
| CN113461123A (en) * | 2021-08-17 | 2021-10-01 | 北京首创生态环保集团股份有限公司 | Tap water chlorination adding device capable of reducing power consumption |
-
2019
- 2019-12-30 CN CN201922432057.XU patent/CN212334822U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307429A (en) * | 2021-06-17 | 2021-08-27 | 唐山市蓝翔环保设备有限公司 | Environment-friendly sewage treatment equipment and using method thereof |
| CN113461123A (en) * | 2021-08-17 | 2021-10-01 | 北京首创生态环保集团股份有限公司 | Tap water chlorination adding device capable of reducing power consumption |
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Granted publication date: 20210112 Termination date: 20211230 |