Feeding device

Abstract

The utility model discloses a feeding device, and belongs to the field of material adding. Comprising a feeding barrel, a quantifying barrel, a three-way valve, a high liquid level sensor, a low liquid level sensor and pipelines for communicating the components to realize a feeding function; by adopting the liquid inlet pump and the liquid outlet pump which are low in energy consumption and cooperating with control of the console, accurate feeding of materials in a low-pressure environment is achieved, and the requirements for water resources in production and life including but not limited to rural areas, areas without mains supply, remote areas and the like are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to material adding field especially relates to a feeding device. BACKGROUND

[0002] Whether it is personal or human society's production life, water is indispensable, one of the main ways of human water acquisition is to cite internal lake or river raw water, uses the water purification equipment to carry out the disinfection and removes the filter's pretreatment, and the disinfection means commonly used means is to add some strong oxidizing agent to the raw water to kill the microorganism in water.

[0003] The urban area infrastructure is more perfect, can efficiently pretreats the raw water, this is inseparable from the perfect power grid distribution of urban area, and in rural areas or the area where the cost of erecting power grid is higher, cannot put the strong oxidizing agent into the raw water through the external water purification equipment disinfection, simultaneously, manual feeding cannot guarantee the precision of feeding, thereby leading to the water resources cannot satisfy the needs of the production and life of these areas.

[0004] In conclusion, how to accurately put the oxidizing agent into the raw water in the area without setting the power grid is a problem to be solved. UTILITY MODEL CONTENT

[0005] The purpose of the utility model is to provide a chemical pretreatment accurate automatic feeding mode for raw water in rural areas or remote areas without city power, and accordingly, a feeding device is provided.

[0006] The feeding device adopts the following technical scheme:

[0007] A feeding device, comprising a box body, a control console arranged in the box body, a feeding barrel arranged in the box body, and a dosing cylinder arranged in the box body, the feeding barrel and the dosing cylinder are connected through a pipeline, a three-way valve is arranged on the pipeline, and a liquid inlet pump is arranged between the dosing cylinder and the three-way valve; the dosing cylinder has a liquid inlet at the top and a liquid outlet at the bottom, the liquid outlet is provided with a liquid outlet pump, and the liquid outlet pump and the liquid inlet pump are both peristaltic pumps.

[0008] Further, the dosing cylinder is provided with a high liquid level sensor and a low liquid level sensor.

[0009] Further, the low liquid level sensor and the high liquid level sensor are electrically connected with the control console.

[0010] Further, the control console is electrically connected with the liquid outlet pump and the liquid inlet pump respectively.

[0011] Through the above technical scheme, the liquid outlet pump and the liquid inlet pump can work normally in a low pressure environment; by adjusting the rotating speed of the peristaltic pump, the flow of the fluid can be accurately controlled, accurate metering is realized, the uniform speed and accuracy of the liquid outlet are ensured, and the peristaltic pump has the following advantages:

[0012] 1. No pollution: the fluid only contacts the pump pipe, not the pump body;

[0013] 2. Low shear force: it is an ideal tool for conveying shear-sensitive and highly corrosive fluids;

[0014] 3. Good sealing: it has good self-priming ability and can be idling, and can prevent backflow;

[0015] 4. Simple maintenance: no valves and seals; the fluid only contacts the pump pipe, not the pump body.

[0016] At the same time, the low liquid level meter and the high liquid level meter detect the liquid level in the quantitative cylinder, and the parameters of the control console are set to accurately control the on-off of the liquid inlet pump and the liquid outlet pump, thereby reducing the labor cost.

[0017] Further, the three-way valve has a first input end, a second input end and a first output end, the feeding barrel is connected with the first input end of the three-way valve through a pipeline, and the three-way valve is further electrically connected with the control console.

[0018] Further, the tank further comprises a clean water barrel, and the clean water barrel is connected with the second input end of the three-way valve through a pipeline.

[0019] Further, the first input end of the three-way valve is a normally open end, and the second input end of the three-way valve is a normally closed end.

[0020] Through the above technical scheme, the three-way valve is switched by the control console, the labor cost is reduced, and the self-cleaning function of the feeding device is realized by setting the parameters of the control console.

[0021] Further, the top of the quantitative cylinder further comprises a backflow port, and the backflow port is connected with the feeding barrel through a pipeline.

[0022] Through the above technical scheme, when the solution in the quantitative cylinder is not full, the smoothness of the liquid outlet pump is ensured; when the solution in the quantitative cylinder is close to overflow or needs to be self-cleaned, the overflow liquid can be collected into the feeding barrel through the second three-way valve to change the on-off, which not only protects the structure inside the tank, but also improves the utilization rate of the raw materials.

[0023] In summary, the present application at least has one of the following beneficial effects:

[0024] The liquid inlet pump and the liquid outlet pump are peristaltic pumps, which can ensure uniform and accurate liquid outlet in a low pressure environment and avoid corrosion of the pipeline by strong oxidants.

[0025] The three-way valve can realize timed and quantitative feeding and self-cleaning by changing its on-off state through the control console, thereby improving work efficiency and reducing labor cost.

[0026] The second three-way valve can ensure normal liquid outlet of the liquid outlet pump and collect the liquid overflowing from the self-cleaning or the quantitative cylinder due to excessive liquid in the quantitative cylinder, thereby improving the utilization rate of raw materials and reducing the damage of raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front view of embodiment 1;

[0028] Figure 2 is a flow chart of embodiment 1.

[0029] REFERENCE NUMERALS:

[0030] 1 box; 2 control console; 3 feeding barrel; 4 water barrel; 5 quantitative cylinder; 51 liquid inlet; 52 liquid outlet; 53 backflow port; 54 high liquid level sensor; 55 low liquid level sensor; 56 liquid inlet pump; 57 liquid outlet pump; 6 three-way valve; 61 first input end; 62 second input end; 63 first output end. DETAILED DESCRIPTION

[0031] In order to make the technical scheme of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] It should be noted that the low pressure environment mentioned in the present application refers to a working environment lower than 24V or requiring battery power supply. Embodiment 1

[0033] REFERENCE Figure 1 , 2 A feeding device, comprising a box 1, a control console 2, a feeding barrel 3, a water barrel 4, a quantitative cylinder 5, a liquid inlet pump 56, a liquid outlet pump 57, a three-way valve 6 and a pipeline connecting the whole system, which are arranged inside the box 1.

[0034] The control console 2, the three-way valve 6, the liquid inlet pump 56, the quantitative cylinder 5 and the liquid outlet pump 57 are embedded in the inner surface of the box 1, and when the box 1 is closed, the structure of the corresponding components can be clearly seen from the outside, which can intuitively reflect the internal working state of the feeding device, improve the efficiency of regular maintenance of the equipment, and more intuitively and quickly reflect internal problems when a fault occurs.

[0035] REFERENCE Figure 2The feeding barrel 3 is connected with the first input end 61 of the three-way valve 6, the clean water barrel 4 is connected with the second input end 62 of the three-way valve 6, the first output end 63 of the three-way valve 6 is connected with the liquid inlet 51 of the quantitative cylinder 5 through the liquid inlet pump 56, the liquid outlet 52 at the bottom of the quantitative cylinder 5 is connected with the liquid outlet pump 57, and the backflow port 53 of the quantitative cylinder 5 is communicated with the inside of the feeding barrel 3 through a pipeline at the top of the feeding barrel 3.

[0036] The high liquid level sensor 54 is arranged at one end of the quantitative cylinder 5 close to the liquid inlet 51, and the low liquid level sensor 55 is arranged at one end of the quantitative cylinder 5 close to the liquid outlet 52.

[0037] It should be noted that the high liquid level sensor 54 and the low liquid level sensor 55 detect the liquid surface position and cannot be arranged at the end of the quantitative cylinder 5.

[0038] The high liquid level sensor 54 is electrically connected with the control console 2, and the low liquid level sensor 55 is electrically connected with the liquid outlet pump 57.

[0039] Before the feeding work is performed, the corresponding solution is filled in the clean water barrel 4 and the feeding barrel 3, and meanwhile, it is ensured that the pipeline, the quantitative cylinder 5 and the remaining components are dry and clean, and since the main function of the present application is feeding, it is assumed that the first input end 61 of the three-way valve 6 is always open and the second input end 62 is always closed.

[0040] Reference Figure 1 When it is necessary to feed the raw water, the valve of the three-way valve 6 is actuated to ensure that the first input end 61 is open and the second input end 62 is closed, at this time, the liquid outlet pump 57 is closed, and the liquid in the feeding barrel 3 can enter the quantitative cylinder 5 along the pipeline under the drive of the liquid inlet pump 56. Figure 2 When the liquid surface in the quantitative cylinder 5 exceeds the high liquid level sensor 54, the liquid inlet pump 56 is closed and the liquid outlet pump 57 is opened, and the liquid in the quantitative cylinder 5 will be fed along the pipeline under the drive of the liquid outlet pump 57.

[0041] The liquid inlet pump 56 and the liquid outlet pump 57 are both peristaltic pumps, and the peristaltic pump has the following advantages:

[0042] 1. No pollution: the fluid only contacts the pump pipe, not the pump body;

[0043] 2. High precision: high repeatability and stability;

[0044] 3. Low shear force: it is an ideal tool for conveying shear-sensitive and corrosive fluids;

[0045] 4. Good sealing: good self-priming ability, can be idling, and can prevent backflow;

[0046] 5. Simple maintenance: no valve and sealing element;

[0047] 6. Bidirectional and equal flow rate delivery capability;

[0048] 7. No damage to any part of the pump in the case of no liquid operation, etc.

[0049] Most importantly, it can meet the needs of working in low pressure environment.

[0050] Since the outlet pump 57 is a peristaltic pump, the speed of the peristaltic pump can be conveniently adjusted to achieve precise control of the flow rate of the fluid, achieve the purpose of precise metering, and ensure the accuracy and uniformity of the feeding process.

[0051] Reference is made again to Figure 2 When the device is feeding raw water, if the liquid in the dosing cylinder 5 reaches the high liquid level sensor 54 but fails to close the inlet pump 56 due to a malfunction, the overflow liquid in the dosing cylinder 5 will flow into the feeding barrel 3 through the backflow port 53 and the pipeline.

[0052] Since the strong oxidizing agent solution may be left on the inner wall of the pipeline during the use of the device, causing the precipitation of solute, it is necessary to add a self-cleaning function to the device.

[0053] Reference is made to Figure 1 When it is necessary to clean the inside of the device, the valve of the three-way valve 6 is actuated to ensure that the second input end 62 is open and the first input end 61 is closed. The liquid in the water tank 4 can enter the dosing cylinder 5 along the pipeline under the drive of the inlet pump 56. When the liquid level in the dosing cylinder 5 reaches the high liquid level sensor 54, the outlet pump 57 opens to discharge the waste liquid. Example 2

[0054] A new way of adjusting the three-way valve 7 is now proposed on the basis of example 1.

[0055] The three-way valve 6 can be an electromagnetic three-way valve, which is electrically connected to the control console 2. The operator sets the working interval of the electromagnetic three-way valve through the control console 2. When feeding is needed, the electromagnetic three-way valve receives an electric signal from the control console 2, opens the first input end 61, and closes the second input end 62 to perform feeding. When cleaning is needed, the electromagnetic three-way valve receives an electric signal from the control console 2, closes the first input end 61, and opens the second input end 62 to perform self-cleaning.

[0056] This implementation reduces unnecessary labor costs and improves the automation level of the embodiment.

[0057] The rest of the embodiment is the same as the implementation of example 1.

[0058] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A charging device, characterized by: The utility model relates to a kind of automatic liquid feeding device, including box, console arranged in box, feeding barrel arranged in box, dosing cylinder arranged in box, the feeding barrel is connected with the dosing cylinder by pipeline, three-way valve is arranged on the pipeline, dosing cylinder and three-way valve are equipped with liquid inlet pump;The dosing cylinder top has liquid inlet, and the dosing cylinder bottom has liquid outlet, and the liquid outlet is equipped with liquid outlet pump, and the liquid outlet pump and liquid inlet pump are all used peristaltic pump.

2. A charging device as claimed in claim 1, characterized in that: The dosing cylinder is provided with a high liquid level sensor and a low liquid level sensor.

3. A charging device as claimed in claim 2, characterized in that: The low liquid level sensor and the high liquid level sensor are electrically connected to the console.

4. A charging device as claimed in claim 2, characterized in that: The console is electrically connected to the liquid outlet pump and the liquid inlet pump.

5. A charging device as claimed in claim 1, characterized in that: The three-way valve has a first input end, a second input end and a first output end.

6. A charging device as claimed in claim 5, characterized in that: The feeding barrel is connected to the first input end of the three-way valve by a pipeline.

7. A charging device as claimed in claim 6, characterized in that: The second input end of the three-way valve is a normally closed end.

8. A charging device as claimed in claim 2, characterized in that: The dosing cylinder top is also provided with a backflow port connected to the feeding barrel by a pipeline.

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