CN219757406U - Chemical agent metering device of washing machine - Google Patents
Chemical agent metering device of washing machine Download PDFInfo
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- CN219757406U CN219757406U CN202321151049.8U CN202321151049U CN219757406U CN 219757406 U CN219757406 U CN 219757406U CN 202321151049 U CN202321151049 U CN 202321151049U CN 219757406 U CN219757406 U CN 219757406U
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- flowmeter
- main pipe
- valve
- pump
- metering device
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- 238000005406 washing Methods 0.000 title claims abstract description 30
- 239000013043 chemical agent Substances 0.000 title abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 9
- 239000003599 detergent Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Accessories For Mixers (AREA)
Abstract
The utility model relates to the technical field of industrial washing machines, in particular to a device for metering chemical agents of a washing machine. A washing machine chemical metering device comprising: the main pipe is characterized in that a first pump, a first valve and a first flowmeter are sequentially arranged at the front end of the main pipe according to the flowing direction of medium in the main pipe, a second flowmeter is arranged at the rear end of the main pipe, the main pipe is further connected with a plurality of branch pipes, the connecting points of the plurality of branch pipes and the main pipe are located between the first flowmeter and the second flowmeter, and a second valve and a second pump are respectively arranged on the plurality of branch pipes. According to the utility model, the two flowmeters are used for monitoring various chemical agents and water flow, and the flow of the various chemical agents is calculated through the difference value of the two flowmeters, so that the equipment cost is reduced and the reliability of the equipment is improved.
Description
Technical Field
The utility model relates to the technical field of industrial washing machines, in particular to a device for metering chemical agents of a washing machine.
Background
The detergents used in industrial large-scale washing machines are quite different from the civil detergents, and the special washing chemicals for the profession are various, and the strong acid, strong alkaline and neutral detergents are all related. In the washing process, different washing chemical agents are required to be added into clear water according to the required proportion for dilution before use.
The current chemical metering method of industrial large-scale washing machine is to install a metering device, i.e. a flowmeter, on the branch pipes of each chemical delivery pipeline to meter and control the flow of chemical on each pipeline, and then add the metered chemical into quantitative water for mixing so as to achieve the chemical ratio meeting the washing requirement. This metering method has the following drawbacks:
1. because each chemical agent needs to be metered, including the added water, metering equipment, namely a large number of flow meters, is needed, the metering equipment is increased in failure rate, and the failure of the flow meters on any branch pipe leads to the fact that the chemical agent on the branch pipe cannot be metered or added normally, so that the whole machine is stopped.
2. Because each chemical agent needs to be measured, and each chemical agent cannot be used for one flowmeter because of different chemical properties, the whole machine cost is increased because of the large number of flowmeters, and the market competitiveness of the product is reduced.
Disclosure of Invention
The present utility model is directed to a chemical metering device for a washing machine, which solves the above-mentioned problems of the prior art.
A washing machine chemical metering device comprising:
a main pipe, a first pump, a first valve and a first flowmeter are sequentially arranged at the front end of the main pipe according to the flow direction of medium in the main pipe, a second flowmeter is arranged at the rear end of the main pipe,
the main pipe is also connected with a plurality of branch pipes, the connection points of the branch pipes and the main pipe are positioned between the first flowmeter and the second flowmeter,
the plurality of branch pipes are respectively provided with a second valve and a second pump.
The connection points of the branch pipes and the main pipe are uniformly arranged along the circumference of a section of the main pipe.
Further, the metering device also comprises a third valve, wherein the third valve is an electric control valve and is arranged at the rear end of the second flowmeter.
Further, the metering device also includes a pipe mixer mounted at the rear end of the second flowmeter.
Further, the metering device further comprises a controller, and the controller is respectively and electrically connected with the first pump, the first flowmeter, the second pump and the third valve.
As a result of the need to use a variety of specific washing chemistries in industrial washing machines, strong acidic, strong alkaline, neutral detergents are involved. To increase the useful life of the metering device, in one embodiment,
the first flowmeter and the second flowmeter are corrosion-resistant flowmeters,
the second valve is a corrosion-resistant one-way valve,
the first pump and the second pump are corrosion resistant pipeline pumps.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, the metering of water and various chemical agents is realized only by the first flowmeter and the second flowmeter, so that the installation quantity of the flowmeter is greatly reduced, and the equipment failure rate and the equipment cost are reduced;
2. in the utility model, a connection mode of a plurality of branch pipes and a main pipe is disclosed, so that the metering error is reduced, and the metering precision and the metering efficiency are improved;
3. the utility model discloses a connection mode of a plurality of branch pipes and a main pipe and a mode of adding a pipeline mixer at the tail end of the main pipe, which not only realizes metering of various chemical agents and water, but also realizes mixing of the chemical agents and water in the conveying process, reduces the burden of a subsequent mixing process and improves the working efficiency of equipment.
Drawings
FIG. 1 is a schematic view of a chemical metering device of a washing machine according to the present utility model;
FIG. 2 is an electrical control diagram of the present utility model;
fig. 3 is a schematic diagram of connection between a main pipe and a branch pipe in an embodiment.
The meaning of each reference sign in the figure is:
1. a main pipe; 2. a branch pipe; 3. a first valve; 4. a first flowmeter; 5. a second valve; 6. a second flowmeter; 7. a third valve; 8. a controller; 9. a pipe mixer; 10. a first pump; 11. and a second pump.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1:
the present embodiment provides a chemical metering device of a washing machine, comprising:
a main pipe 1, according to the flow direction of the medium in the main pipe 1, a first pump 10, a first valve 3 and a first flowmeter 4 are arranged at the front end of the main pipe 1 in sequence, a second flowmeter 6 is arranged at the rear end of the main pipe 1,
the main pipe 1 is also connected with a plurality of branch pipes 2, the connection points of the branch pipes 2 and the main pipe 1 are positioned between the first flowmeter 4 and the second flowmeter 6,
the plurality of branch pipes 2 are respectively provided with a second valve 5 and a second pump 11.
Further, the metering device further comprises a third valve 7, wherein the third valve 7 is an electric control valve and is arranged at the rear end of the second flowmeter 6.
As a result of the need to use a variety of specific washing chemistries in industrial washing machines, strong acidic, strong alkaline, neutral detergents are involved. To increase the useful life of the metering device, in one embodiment,
the first flowmeter 4 and the second flowmeter 6 are corrosion-resistant flowmeters,
the second valve 5 is a corrosion-resistant one-way valve,
the first pump 10 and the second pump 11 are corrosion resistant pipeline pumps.
In the present embodiment, the main pipe 1 is used for transporting water, and the plurality of branch pipes 2 are used for transporting chemical agents of different media. In the present utility model, the metering of different chemical agents is not performed by conventional separate metering and then mixing with water, but is performed after mixing with water.
Specifically, the accumulated flow of the first flowmeter 4 and the second flowmeter 6 is cleared before metering, then the first pump 10, the first valve 3 and the third valve 7 are opened, water is conveyed into the main pipe 1 under the conveying action of the first pump 10, and after the main pipe 1 is filled with water, the accumulated flow difference delta Q of the first flowmeter 4 and the second flowmeter 6 is obtained Water and its preparation method I.e. the volume of water in the main pipe 1 between the first flowmeter 4 and the second flowmeter 6.
Then the second pump 11 at the front end of the first branch pipe 2 is opened, and the second pump 11 can remove the first chemical agent from the first branch pipe because the second valve 5 is a one-way valveThe first branch pipe 2 is input into the main pipe 1 to be mixed with water in the main pipe 1 and then enters the second flowmeter 6 for metering, if the addition amount of the first chemical agent is set to be Q 1 Then when the integrated flow of the second flow meter 6 is subtracted by the integrated flow of the first flow meter 4 = deltaq Water and its preparation method +Q 1 And when the pump at the front end of the first branch pipe 2 is closed, the addition of the first chemical agent is stopped.
Then the second pump 11 at the front end of the second branch pipe 2 is turned on, the water of the second chemical agent input into the main pipe 1 is mixed and then enters the second flowmeter 6 for metering, if the addition amount of the first chemical agent is set to be Q 2 When the integrated flow rate of the second flow meter 6 is subtracted by the integrated flow rate of the first flow meter 4=Δq Water and its preparation method +Q 1 +Q 2 When the pump at the front end of the second branch pipe 2 is turned off, the addition of the second chemical agent is stopped.
In turn, the second pump 11 at the front end of the N-th branch pipe 2 is turned on to mix the water of the N-th chemical agent input to the main pipe 1 and then to meter the water by the second flowmeter 6, if the addition amount of the first chemical agent is set to be Q N When the integrated flow rate of the second flow meter 6 is subtracted by the integrated flow rate of the first flow meter 4=Δq Water and its preparation method +Q 1 +Q 2 +……+Q N When the pump at the front end of the nth branch pipe 2 is turned off, the addition of the nth chemical agent is stopped.
Finally, after all the chemical agents are added, the required water amount is continuously added, so that the metering of water and various chemical agents is realized.
As is well known, certain errors exist in the metering process, and the errors in the utility model mainly come from two aspects:
first, in order to reduce the error caused by the fluctuation of the flow rate of the water, the first pump 10 is of the metering pump type in the present embodiment, and functions as a flow stabilizing function.
Secondly, the errors caused by the length of the pipeline, mainly the metering errors caused by the distances from the branch pipes 2 to the second flowmeter 6 on the main pipe 1, can be offset by adding a certain correction value to the metering value because the errors are systematic errors.
The beneficial effects brought by the mixing device provided by the embodiment are as follows:
in the embodiment, the two flowmeters are used for monitoring various chemical agents and water flow, the flow of the various chemical agents is calculated through the difference value of the two flowmeters, the situation that a plurality of flowmeters are required to be installed for metering different chemical agents in the prior art is avoided, the equipment cost is reduced, and meanwhile the reliability of the equipment is improved.
Example 2:
in addition to the foregoing embodiments, this embodiment provides a chemical metering device for a washing machine, in which the connection points of the plurality of branch pipes 2 and the main pipe 1 are uniformly arranged along the circumference of one section of the main pipe 1. As shown in fig. 3.
In the embodiment 1, the length of the pipe may cause a metering error, and in order to reduce a systematic error, in this embodiment, the connection points of the plurality of branch pipes 2 and the main pipe 1 are arranged along the circumference of the main pipe 1, so that the length of the main pipe 1 can be greatly shortened, and meanwhile, the examples between the first flowmeter 4 and the second flowmeter 6 can be reduced, thereby reducing the systematic error.
Example 3:
in addition to the foregoing embodiments, the present embodiment further provides a chemical metering device for a washing machine, and preferably, the metering device further includes a controller 8, where the controller 8 is electrically connected to the first pump 10, the first flowmeter 4, the second flowmeter 6, the second pump 11, and the third valve 7, respectively.
In the present embodiment, an automatic metering device is provided, and automatic metering can be realized by control of the controller 8.
Example 4:
in addition to the content of the previous embodiment, this embodiment also provides a chemical metering device for a washing machine, preferably, the metering device further includes a pipe mixer 9, and the pipe mixer 9 is installed at the rear end of the second flowmeter 6.
In the existing scheme, various chemical agents and water can be metered and then added into a stirring container for use after wedding, and the pipeline mixer 9 in the example can be used for primarily mixing the water in the main pipe 1 and various chemical agents, so that the burden of a subsequent mixing process is reduced, and the working efficiency of equipment is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A chemical metering device for a washing machine, comprising:
a main pipe (1), a first pump (10), a first valve (3) and a first flowmeter (4) are sequentially arranged at the front end of the main pipe (1) according to the flow direction of medium in the main pipe (1), a second flowmeter (6) is arranged at the rear end of the main pipe (1),
the main pipe (1) is also connected with a plurality of branch pipes (2), the connection points of the branch pipes (2) and the main pipe (1) are positioned between the first flowmeter (4) and the second flowmeter (6),
the plurality of branch pipes (2) are respectively provided with a second valve (5) and a second pump (11).
2. A washing machine chemical metering device according to claim 1, characterized in that the connection points of the branch pipes (2) and the main pipe (1) are uniformly arranged along the circumference of a section of the main pipe (1).
3. A laundry detergent dosage device according to claim 1 or 2, further comprising a third valve (7), said third valve (7) being an electrically controlled valve, mounted at the rear end of the second flowmeter (6).
4. A laundry-machine chemical metering device according to claim 3, characterized by further comprising a pipe mixer (9), said pipe mixer (9) being mounted at the rear end of the second flowmeter (6).
5. A washing machine chemical metering device according to claim 4, further comprising a controller (8), said controller (8) being electrically connected to said first pump (10), first flowmeter (4), second flowmeter (6), second pump (11) and third valve (7), respectively.
6. A washing machine chemical metering device according to claim 1, characterized in that the first and second flow meters (4, 6) are corrosion resistant flow meters.
7. A washing machine chemical metering device according to claim 1, characterized in that the second valve (5) is a corrosion-resistant one-way valve.
8. A washing machine chemical metering device according to claim 1, characterized in that the first pump (10) and the second pump (11) are corrosion-resistant pipeline pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151049.8U CN219757406U (en) | 2023-05-15 | 2023-05-15 | Chemical agent metering device of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151049.8U CN219757406U (en) | 2023-05-15 | 2023-05-15 | Chemical agent metering device of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219757406U true CN219757406U (en) | 2023-09-26 |
Family
ID=88077671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321151049.8U Active CN219757406U (en) | 2023-05-15 | 2023-05-15 | Chemical agent metering device of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219757406U (en) |
-
2023
- 2023-05-15 CN CN202321151049.8U patent/CN219757406U/en active Active
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