Energy-saving powder feeding device

Abstract

The utility model discloses an energy-saving powder feeding device which comprises a first water supply point, a water ejector, a powder storage device, a first feeding position, a conveyor and a controller, the first water supply point is used for providing a water solution for mixing for the powder feeding device, the inlet end of the water ejector is communicated with the first water supply point, powder medicament is stored in the powder storage device, and the first feeding position is communicated with the conveyor. A gate valve is installed at the discharging end of the powder storage device, a discharging valve opening of the gate valve is communicated with the water ejector, the conveyor is communicated with the outlet end of the water ejector and used for conveying liquid medicine obtained after powder medicine and an aqueous solution are mixed to a first adding position, and the control device is electrically connected with the gate valve and the conveyor. According to the utility model, the powder medicament is sucked by adopting the negative pressure generated by the water ejector, electric energy driving is not needed, the energy loss is reduced, the structure is simple, the use of precise parts is reduced, the maintenance cost is reduced, and the design of the gate valve improves the accuracy of dosing quantity control.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an energy-saving powder dosing device. Background Art

[0002] In the field of environmental protection, the addition of powder agents is a key step to ensure water quality improvement and pollutant removal. Traditional powder dosing devices usually use electric powder feeders to add powder agents. Although they can meet basic dosing requirements, there are still some shortcomings in practical applications:

[0003] 1. High energy loss: Electric powder feeders consume a lot of electricity during operation, which not only increases the operating cost, but also goes against the current environmental protection concept of energy conservation and emission reduction;

[0004] 2. High maintenance cost: The structure or precision parts of the electric powder feeder are easily affected by the powder and malfunction during use, which requires a lot of maintenance and high maintenance cost;

[0005] 3. It is difficult to accurately control the dosage: When the electric powder feeder adds powder reagents, it is often difficult to achieve accurate dosage control due to limitations in control accuracy and stability, thus affecting the treatment effect. Utility Model Content

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide an energy-saving powder dosing device, which solves the technical problems of high energy loss and maintenance cost of traditional powder dosing, as well as difficulty in accurately controlling the dosage.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model discloses an energy-saving powder dosing device, comprising:

[0009] The first water supply point is used to provide the powder dosing device with a water solution for mixing;

[0010] A water ejector, wherein the inlet end of the water ejector is connected to the first water supply point;

[0011] A powder storage device storing powder medicine, wherein a gate valve is installed at the discharge end of the powder storage device, wherein the discharge valve port of the gate valve is connected to the water ejector, and the gate valve is used to control the flow rate of the powder medicine entering the water ejector;

[0012] First dosing place;

[0013] A conveyor, connected to the outlet end of the water ejector, for conveying the mixture of the powdered medicine and the aqueous solution to the first dosing location;

[0014] A control device is electrically connected to the gate valve and the conveyor.

[0015] As a preferred solution, it also includes:

[0016] A liquid storage tank, arranged at the first dosing location and connected to the discharge end of the conveyor, the conveyor being used to transport the liquid medicine to the liquid storage tank;

[0017] A second water supply point is connected to the liquid storage tank through a first water conduit. The second water supply point stores water to be treated. A first electric valve and a first flow meter are installed on the first water conduit. The first electric valve and the first flow meter are both electrically connected to the control device. The first flow meter is used to monitor the flow rate of the water to be treated flowing into the liquid storage tank through the first water conduit.

[0018] As a preferred solution, it also includes:

[0019] A liquid storage tank, arranged at the first dosing location and connected to the discharge end of the conveyor, the conveyor being used to transport the liquid medicine to the liquid storage tank;

[0020] a second water supply point, connected to the liquid storage tank through a first water conduit, the second water supply point stores a dilution aqueous solution, a first electric valve and a first flow meter are installed on the first water conduit, the first electric valve is electrically connected to the control device, and the first flow meter is used to monitor the flow rate of the dilution aqueous solution flowing into the liquid storage tank through the first water conduit;

[0021] A dosing pump, connected to the liquid storage tank through a first liquid-conducting pipeline, and electrically connected to the control device;

[0022] The second dosing location is connected to the liquid outlet of the dosing pump through a third liquid guiding pipeline, and the second dosing location stores water to be treated.

[0023] As a preferred solution, the liquid storage tank is connected to the discharge end of the conveyor through a second liquid guiding pipeline, a second electric valve and a first manual valve are installed on the second liquid guiding pipeline, the second electric valve is electrically connected to the control device, and a stirring blade is also provided at the bottom of the liquid storage tank.

[0024] As a preferred embodiment, the liquid storage tank is used to store the liquid after the reaction of the medical solution and the water to be treated. The liquid storage tank is equipped with a first sensor, a second sensor and an ultrasonic liquid level meter. The first sensor is arranged above the second sensor. The first sensor, the second sensor and the ultrasonic liquid level meter are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold. The first liquid level threshold is a high liquid level threshold, and the second liquid level threshold is a low liquid level threshold. The first sensor monitors the liquid level of the liquid in the liquid storage tank based on the first liquid level threshold, and the second sensor monitors the liquid level of the liquid in the liquid storage tank based on the second liquid level threshold. The ultrasonic liquid level meter is used to display the liquid level of the liquid in the liquid storage tank in real time and feed it back to the control device.

[0025] As a preferred embodiment, the liquid storage tank is used to store the diluted liquid after the medicinal liquid is mixed with the diluent aqueous solution. The liquid storage tank is installed with a first sensor, a second sensor and an ultrasonic liquid level meter. The first sensor is arranged above the second sensor, and the second sensor is arranged above the liquid inlet of the first liquid guiding pipeline. The first sensor, the second sensor and the ultrasonic liquid level meter are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold. The first liquid level threshold is a high liquid level threshold, and the second liquid level threshold is a low liquid level threshold. The first sensor monitors the liquid level of the diluted liquid in the liquid storage tank based on the first liquid level threshold, and the second sensor monitors the liquid level of the diluted liquid in the liquid storage tank based on the second liquid level threshold. The ultrasonic liquid level meter is used to display the liquid level of the diluted liquid in the liquid storage tank in real time and feed it back to the control device.

[0026] As a preferred solution, a third sensor is installed on the powder storage device, the third sensor is electrically connected to the control device, and the third sensor is used to detect the remaining amount of the powder medicine in the powder storage device. The first addition point stores water to be treated.

[0027] As a preferred solution, one end of the gate valve is connected to the discharge end of the powder storage device, and the other end is connected to the water ejector through a material guide pipeline. A second manual valve is installed on the material guide pipeline. A mixing cavity is provided in the water ejector. A stirring element is installed in the mixing cavity. The stirring element is used to accelerate the mixing of the aqueous solution and the powder medicine.

[0028] As a preferred solution, the inlet end of the water ejector is connected to the first water supply point through a second water conduit, a control valve assembly is installed on the second water conduit, and a second flow meter is also provided between the control valve assembly and the water ejector. The second flow meter is installed on the water conduit to monitor the flow rate of the aqueous solution flowing into the water ejector through the second water conduit, and the second flow meter and the control valve assembly are both electrically connected to the control device.

[0029] As a preferred solution, a third manual valve is further provided between the first water supply point and the control valve assembly, and the third manual valve is installed on the second water conduit. The control valve assembly includes a third electric valve and a fourth manual valve installed in parallel on the second water conduit. The third electric valve is electrically connected to the control device, and the water ejector is a Venturi tube.

[0030] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it mainly has the following advantages:

[0031] 1. Less energy loss: The negative pressure generated by the water ejector is used to inhale the powdered medicine, which does not require electric energy to drive and reduces energy loss;

[0032] 2. Low maintenance cost: The overall structure of the device is simple, which reduces the use of precision parts and reduces maintenance costs;

[0033] 3. Improved the accuracy of dosage control: The flow of powdered medicine is controlled by the gate valve, which realizes the precise control of dosage. The use of multiple sensors and flow meters improves the treatment effect.

[0034] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of a powder dosing device according to Embodiment 1 of the present utility model;

[0036] Figure 2 It is a schematic structural diagram of a powder dosing device of Example 2 of the utility model;

[0037] Figure 3 It is a schematic structural diagram of a powder dosing device of Example 3 of the present utility model.

[0038] Description of reference numerals:

[0039] 10. The first water supply point;

[0040] 20. water ejector; 21. mixing cavity; 22. stirring element; 23. second water conduit; 24. control valve assembly; 241. third electric valve; 242. fourth manual valve; 25. second flow meter; 26. third manual valve;

[0041] 30. Powder storage device; 31. Gate valve; 32. Third sensor; 33. Material guide pipeline; 34. Second manual valve;

[0042] 40. The first dosing point;

[0043] 50. Conveyor;

[0044] 60. Liquid storage tank; 61. First sensor; 62. Second sensor; 63. Ultrasonic level meter; 64. Second liquid guide pipe; 65. Second electric valve; 66. First manual valve;

[0045] 70. Second water supply point; 71. First water pipeline; 72. First electric valve; 73. First flow meter;

[0046] 80. Dosing pump; 81. First liquid guide pipeline;

[0047] 90. The second injection point; 91. The third liquid guide pipeline. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0050] In the field of environmental protection, the addition of powder reagents is a key link in improving water quality and removing pollutants. However, traditional powder dosing devices, especially those using electric powder feeders, have shown significant deficiencies in practical applications. First, its energy loss is high. The consumption of a large amount of electricity not only increases the operating cost, but also runs counter to the current concept of energy conservation and emission reduction. Secondly, since the structure or precision components of the electric powder feeder are easily affected by powder and fail, the maintenance cost is significantly increased, which brings challenges to the long-term stable operation of the equipment. Finally, in terms of the control of the dosage, due to the limitations of the electric powder feeder in terms of accuracy and stability, it is often difficult to achieve accurate dosage control, which not only affects the effect of water quality treatment, but also restricts the further development of powder dosing technology.

[0051] To solve the above problems, please refer to Figures 1 to 3 The present utility model provides an energy-saving powder dosing device, comprising:

[0052] The first water supply point 10 is used to provide the powder dosing device with a water solution for mixing, thereby ensuring a stable supply of the water solution during the dosing process.

[0053] The water ejector 20 has an inlet end connected to the first water supply point 10 .

[0054] The powder storage device 30 stores powder medicine. A gate valve 31 is installed at the discharge end of the powder storage device 30. The discharge valve port of the gate valve 31 is connected to the water ejector 20. Negative pressure is generated by the water flow to effectively inhale the powder medicine and achieve mixing with the aqueous solution. No additional power drive is required, which reduces energy consumption. The gate valve 31 is used to control the flow of the powder medicine entering the water ejector 20. By adjusting the opening of the gate valve 31, the dosage can be accurately controlled to meet different processing requirements.

[0055] The first dosing location 40 is the target location for dosing.

[0056] The conveyor 50 is connected to the outlet end of the water ejector 20 and is used to convey the medicine liquid obtained by mixing the powder medicine and the aqueous solution to the first dosing point 40 to ensure the continuity and stability of the medicine liquid conveyance.

[0057] The control device is electrically connected to the gate valve 31 and the conveyor 50, and realizes automatic adjustment and monitoring of the dosage by accurately controlling the opening of the gate valve 31 and the running speed of the conveyor 50, thereby ensuring the accuracy and reliability of the dosage process.

[0058] The overall structure of the powder dosing device is simple, which reduces the use of precision parts and reduces maintenance costs and difficulty.

[0059] Specifically, a third sensor 32 is installed on the powder storage device 30, and the third sensor 32 is electrically connected to the control device. The third sensor 32 is used to detect the remaining amount of powder medicine in the powder storage device 30. This design ensures the precise management of the powder medicine and accurately grasps the remaining amount of powder medicine in the powder storage device 30, so as to make corresponding dosage decisions.

[0060] One end of the gate valve 31 is connected to the discharge end of the powder storage device 30, and the other end is connected to the water ejector 20 through the material guide pipe 33, so as to realize the precise control of the powder medicine flowing into the water ejector 20. A second manual valve 34 is installed on the material guide pipe 33 as a backup or emergency control means to ensure that the flow rate of the powder medicine can be manually adjusted under special circumstances. A mixing cavity 21 is provided in the water ejector 20, which is the key area for mixing the powder medicine and the aqueous solution. A stirring element 22 is installed in the mixing cavity 21. The stirring element 22 is used to accelerate the mixing of the aqueous solution and the powder medicine to form a uniform dilution liquid, thereby improving the addition effect and efficiency.

[0061] Furthermore, the inlet end of the water ejector 20 is connected to the first water supply point 10 through the second water conduit 23, ensuring a stable and reliable water supply. A control valve assembly 24 is installed on the second water conduit 23. This assembly can achieve precise control of the water flow at the inlet end of the water ejector 20. A second flow meter 25 is also provided between the control valve assembly 24 and the water ejector 20. The second flow meter 25 is installed on the water conduit to monitor the flow of the aqueous solution flowing into the water ejector 20 through the second water conduit 23. The second flow meter 25 and the control valve assembly 24 are both electrically connected to the control device. Through the data feedback of the second flow meter 25, the control device can grasp the water flow conditions in the water ejector 20 in real time, and accurately adjust the control valve assembly 24 accordingly.

[0062] Furthermore, a third manual valve 26 is provided between the first water supply point 10 and the control valve assembly 24. The third manual valve 26 is installed on the second water conduit 23. This design enables the operator to quickly close the second water conduit 23 in an emergency, effectively blocking the water flow and ensuring the safety of the system. The control valve assembly 24 includes a third electric valve 241 and a fourth manual valve 242 installed in parallel on the second water conduit 23. This layout not only ensures the automatic control of the system, but also provides an alternative solution for manual adjustment. The third electric valve 241 is electrically connected to the control device. The water ejector 20 is a venturi tube. The water ejector 20 adopts a venturi tube design. This structure can generate a strong negative pressure, thereby effectively inhaling the powdered medicine and fully mixing it with the aqueous solution, thereby improving the addition efficiency and mixing effect.

[0063] In Example 1, please refer to Figure 1The first dosing location 40 stores water to be treated, and the conveyor 50 directly transports the liquid medicine to the water to be treated, thereby improving the water quality and removing pollutants.

[0064] In Example 2, please refer to Figure 2 , the energy-saving powder dosing device also includes:

[0065] The liquid storage tank 60 is disposed at the first dosing location 40 and is connected to the discharge end of the conveyor 50 . The conveyor 50 is used to stably and continuously convey the uniformly mixed liquid medicine to the liquid storage tank 60 .

[0066] The second water supply point 70 is connected to the liquid storage tank 60 through the first water conduit 71. The second water supply point 70 stores water to be treated. The setting of the first water conduit 71 ensures that the water to be treated can flow smoothly into the liquid storage tank 60 and mix with the liquid medicine. The first electric valve 72 and the first flow meter 73 are installed on the first water conduit 71. The first electric valve 72 and the first flow meter 73 are both electrically connected to the control device. The first electric valve 72 realizes switch control through the command of the control device, thereby controlling the inflow of the water to be treated. The first flow meter 73 is used to monitor the flow of the water to be treated flowing into the liquid storage tank 60 through the first water conduit 71, and provide accurate flow data for the control device, so as to realize automatic control and monitoring and ensure the accuracy and stability of the addition process.

[0067] Furthermore, the liquid storage tank 60 is connected to the discharge end of the conveyor 50 through the second liquid guide pipe 64, and the second electric valve 65 and the first manual valve 66 are installed on the second liquid guide pipe 64. The second electric valve 65 is electrically connected to the control device, and the second electric valve 65 can automatically adjust the opening and closing according to the command of the control device to achieve accurate control of the flow rate of the liquid medicine. The first manual valve 66 is used as a backup or emergency control means to ensure that the flow rate of the liquid medicine can be manually adjusted under special circumstances. The bottom of the liquid storage tank 60 is also provided with a stirring blade to ensure that the liquid medicine is evenly and fully diluted to improve the dosing effect.

[0068] Furthermore, the liquid storage tank 60 is used to store the liquid after the reaction of the medical solution and the water to be treated. The first sensor 61, the second sensor 62 and the ultrasonic liquid level meter 63 are installed on the liquid storage tank 60. Through the joint cooperation of the first sensor 61, the second sensor 62 and the ultrasonic liquid level meter 63, the liquid level in the liquid storage tank 60 is ensured to be within a controllable range. Among them, the first sensor 61 is arranged above the second sensor 62, and the first sensor 61, the second sensor 62 and the ultrasonic level meter 63 are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold. The first liquid level threshold is a high liquid level threshold, and the second liquid level threshold is a low liquid level threshold. The first sensor 61 monitors the liquid level of the liquid in the liquid storage tank 60 based on the first liquid level threshold, and the second sensor 62 monitors the liquid level of the liquid in the liquid storage tank 60 based on the second liquid level threshold. When the first sensor 61 detects that the liquid level exceeds the first liquid level threshold, it can promptly issue an alarm and initiate corresponding treatment measures to avoid liquid overflow. The second sensor 62 monitors whether the liquid level is lower than the second liquid level threshold. If it is lower than the threshold, it can trigger the corresponding supplement mechanism to ensure that the addition process will not be interrupted due to too low a liquid level. The ultrasonic level meter 63 is used to display the liquid level of the liquid in the liquid storage tank 60 in real time and feed it back to the control device, providing the control device with accurate liquid level information for more accurate liquid level control.

[0069] In Example 3, please refer to Figure 3 , the energy-saving powder dosing device also includes:

[0070] The liquid storage tank 60 is disposed at the first dosing location 40 and is connected to the discharge end of the conveyor 50. The conveyor 50 is used to stably and continuously transport the mixed liquid medicine to the liquid storage tank 60 to ensure the uniformity and stability of the liquid medicine before dosing.

[0071] The second water supply point 70 is connected to the liquid storage tank 60 through the first water conduit 71. The second water supply point 70 stores a dilution aqueous solution. The setting of the first water conduit 71 ensures that the dilution aqueous solution can flow smoothly into the liquid storage tank 60 to adjust the concentration of the medicine to the best treatment effect. The first electric valve 72 and the first flow meter 73 are installed on the first water conduit 71. The first electric valve 72 is electrically connected to the control device. The first electric valve 72 controls the inflow of the dilution aqueous solution according to the instruction of the control device to achieve precise dilution ratio control. The first flow meter 73 is used to monitor the flow of the dilution aqueous solution flowing into the liquid storage tank 60 through the first water conduit 71, and provide accurate flow data for the control device.

[0072] The dosing pump 80, as a power source for conveying the diluted liquid medicine, is connected to the liquid storage tank 60 through the first liquid conduit 81 and is electrically connected to the control device. It controls the dosing rate and dosage of the diluted liquid medicine according to the instructions of the control device, ensures the stability and accuracy of the dosing process, and realizes automatic control.

[0073] The second dosing location 90 is connected to the liquid outlet of the dosing pump 80 through the third liquid guiding pipeline 91 , and the second dosing location 90 stores water to be treated.

[0074] Furthermore, the liquid storage tank 60 is connected to the discharge end of the conveyor 50 through the second liquid guide pipe 64, and the second electric valve 65 and the first manual valve 66 are installed on the second liquid guide pipe 64. The second electric valve 65 is electrically connected to the control device, and the second electric valve 65 can automatically adjust the opening and closing according to the command of the control device to achieve accurate control of the flow rate of the liquid medicine. The first manual valve 66 is used as a backup or emergency control means to ensure that the flow rate of the liquid medicine can be manually adjusted under special circumstances. The bottom of the liquid storage tank 60 is also provided with a stirring blade to ensure that the liquid medicine is evenly and fully diluted to improve the dosing effect.

[0075] Furthermore, the liquid storage tank 60 is used to store the diluted liquid mixed with the medicinal liquid and the diluting aqueous solution. The first sensor 61, the second sensor 62 and the ultrasonic liquid level meter 63 are installed on the liquid storage tank 60. Through the joint cooperation of the first sensor 61, the second sensor 62 and the ultrasonic liquid level meter 63, it is ensured that the liquid level of the diluted liquid fluctuates within a preset range. Specifically, the first sensor 61 is arranged above the second sensor 62 to form a double insurance system for high and low liquid level monitoring. The second sensor 62 is arranged above the liquid inlet of the first liquid guide pipe 81. The first sensor 61, the second sensor 62 and the ultrasonic liquid level meter 63 are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold. The first liquid level threshold is a high liquid level threshold, and the second liquid level threshold is a low liquid level threshold. The first sensor 61 monitors the liquid level of the diluent in the liquid storage tank 60 based on the first liquid level threshold, and the second sensor 62 monitors the liquid level of the diluent in the liquid storage tank 60 based on the second liquid level threshold. When the diluent reaches or exceeds the high level threshold, the first sensor 61 can respond quickly and start corresponding treatment measures through the control device, such as stopping further addition of dilution water to avoid dilution overflow. When the dilution level is lower than the low level threshold, the second sensor 62 will send a signal to start the replenishment mechanism through the control device, such as opening the electric valve of the dilution water to ensure that the dilution level is always kept within the optimal working range. The ultrasonic level meter 63 is used to display the dilution level in the liquid storage tank 60 in real time and feed it back to the control device, providing the control device with accurate level information for more precise level control and adjustment.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving powder dosing device, characterized in that: include: A first water supply point (10) is used to provide a water solution for mixing to the powder dosing device; a water ejector (20), wherein an inlet end of the water ejector (20) is in communication with the first water supply point (10); A powder storage device (30) stores powder medicine, a gate valve (31) is installed at the discharge end of the powder storage device (30), the discharge valve port of the gate valve (31) is connected to the water ejector (20), and the gate valve (31) is used to control the flow rate of the powder medicine entering the water ejector (20); A first dosing point (40); A conveyor (50) is connected to the outlet end of the water ejector (20) and is used to convey the mixed powder medicine and the aqueous solution to the first dosing location (40); A control device is electrically connected to the gate valve (31) and the conveyor (50).

2. The energy-saving powder dosing device according to claim 1, characterized in that: Also includes: A liquid storage tank (60) is arranged at the first dosing location (40) and is connected to the discharge end of the conveyor (50), and the conveyor (50) is used to transport the liquid medicine to the liquid storage tank (60); The second water supply point (70) is connected to the liquid storage tank (60) through a first water conduit (71); the second water supply point (70) stores water to be treated; a first electric valve (72) and a first flow meter (73) are installed on the first water conduit (71); the first electric valve (72) and the first flow meter (73) are both electrically connected to the control device; the first flow meter (73) is used to monitor the flow rate of the water to be treated flowing into the liquid storage tank (60) through the first water conduit (71).

3. The energy-saving powder dosing device according to claim 1, characterized in that: Also includes: A liquid storage tank (60) is arranged at the first dosing location (40) and is connected to the discharge end of the conveyor (50), and the conveyor (50) is used to transport the liquid medicine to the liquid storage tank (60); a second water supply point (70) connected to the liquid storage tank (60) via a first water conduit (71); the second water supply point (70) stores a dilution aqueous solution; a first electric valve (72) and a first flow meter (73) are installed on the first water conduit (71); the first electric valve (72) is electrically connected to the control device; and the first flow meter (73) is used to monitor the flow rate of the dilution aqueous solution flowing into the liquid storage tank (60) through the first water conduit (71); A dosing pump (80) is connected to the liquid storage tank (60) through a first liquid guide pipe (81) and is electrically connected to the control device; The second dosing point (90) is connected to the liquid outlet of the dosing pump (80) through a third liquid guiding pipeline (91), and the second dosing point (90) stores water to be treated.

4. The energy-saving powder dosing device according to claim 2 or 3, characterized in that: The liquid storage tank (60) is connected to the discharge end of the conveyor (50) through a second liquid guiding pipeline (64); a second electric valve (65) and a first manual valve (66) are installed on the second liquid guiding pipeline (64); the second electric valve (65) is electrically connected to the control device; and a stirring blade is also provided at the bottom of the liquid storage tank (60).

5. The energy-saving powder dosing device according to claim 2 is characterized in that: The liquid storage tank (60) is used to store liquid after the reaction between the liquid medicine and the water to be treated. The liquid storage tank (60) is equipped with a first sensor (61), a second sensor (62) and an ultrasonic liquid level meter (63). The first sensor (61) is arranged above the second sensor (62). The first sensor (61), the second sensor (62) and the ultrasonic liquid level meter (63) are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold. The first liquid level threshold is a high liquid level threshold, and the second liquid level threshold is a low liquid level threshold. The first sensor (61) monitors the liquid level of the liquid in the liquid storage tank (60) based on the first liquid level threshold. The second sensor (62) monitors the liquid level of the liquid in the liquid storage tank (60) based on the second liquid level threshold. The ultrasonic liquid level meter (63) is used to display the liquid level of the liquid in the liquid storage tank (60) in real time and feed it back to the control device.

6. The energy-saving powder dosing device according to claim 3 is characterized in that: The liquid storage tank (60) is used to store a diluted solution obtained by mixing the drug solution with the diluting aqueous solution. A first sensor (61), a second sensor (62) and an ultrasonic level meter (63) are installed on the liquid storage tank (60). The first sensor (61) is arranged above the second sensor (62), and the second sensor (62) is arranged above the liquid inlet of the first liquid guiding pipeline (81). The first sensor (61), the second sensor (62) and the ultrasonic level meter (63) are all electrically connected to the control device. The control device is preset with a first liquid level threshold and a second liquid level threshold, wherein the first liquid level threshold is a high liquid level threshold and the second liquid level threshold is a low liquid level threshold. The first sensor (61) monitors the liquid level of the diluent in the liquid storage tank (60) based on the first liquid level threshold, and the second sensor (62) monitors the liquid level of the diluent in the liquid storage tank (60) based on the second liquid level threshold. The ultrasonic liquid level meter (63) is used to display the liquid level of the diluent in the liquid storage tank (60) in real time and feed it back to the control device.

7. The energy-saving powder dosing device according to claim 1 is characterized in that: A third sensor (32) is installed on the powder storage device (30), and the third sensor (32) is electrically connected to the control device. The third sensor (32) is used to detect the remaining amount of the powder medicine in the powder storage device (30). The first addition point (40) stores water to be treated.

8. The energy-saving powder dosing device according to claim 1, characterized in that: One end of the gate valve (31) is connected to the discharge end of the powder storage device (30), and the other end is connected to the water ejector (20) through a material guide pipeline (33). A second manual valve (34) is installed on the material guide pipeline (33). A mixing cavity (21) is provided in the water ejector (20). A stirring element (22) is installed in the mixing cavity (21). The stirring element (22) is used to accelerate the mixing of the aqueous solution and the powder medicine.

9. The energy-saving powder dosing device according to claim 1, characterized in that: The inlet end of the water ejector (20) is connected to the first water supply point (10) through a second water conduit (23); a control valve assembly (24) is installed on the second water conduit (23); a second flow meter (25) is also provided between the control valve assembly (24) and the water ejector (20); the second flow meter (25) is installed on the water conduit and is used to monitor the flow rate of the aqueous solution flowing into the water ejector (20) through the second water conduit (23); the second flow meter (25) and the control valve assembly (24) are both electrically connected to the control device.

10. The energy-saving powder dosing device according to claim 9, characterized in that: A third manual valve (26) is also provided between the first water supply point (10) and the control valve assembly (24); the third manual valve (26) is installed on the second water conduit (23); the control valve assembly (24) comprises a third electric valve (241) and a fourth manual valve (242) installed in parallel on the second water conduit (23); the third electric valve (241) is electrically connected to the control device; and the water ejector (20) is a Venturi tube.

Images