CN214233911U - Proportional mixing device - Google Patents
Proportional mixing device Download PDFInfo
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- CN214233911U CN214233911U CN202023096732.5U CN202023096732U CN214233911U CN 214233911 U CN214233911 U CN 214233911U CN 202023096732 U CN202023096732 U CN 202023096732U CN 214233911 U CN214233911 U CN 214233911U
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Abstract
The utility model discloses a proportional mixing device, belonging to the field of liquid material mixing equipment, comprising a first input pipeline, a second input pipeline, a third input pipeline, a mixing cavity, a cooler and an output pipeline; the first input pipeline comprises an acid liquor storage tank, a first metering pump, a first mass flow meter and a first three-way valve, the second input pipeline comprises a clear water storage tank, a second metering pump, a second mass flow meter and a second three-way valve, and the third input pipeline comprises an alkali liquor storage tank, a third metering pump, a third mass flow meter and a third three-way valve; when the material flow is unstable, the switching of the first three-way valve, the second three-way valve and the third three-way valve is controlled, so that the materials of the first metering pump, the second metering pump and the third metering pump respectively circulate back to the acid liquid storage tank, the clear water storage tank and the alkali liquid storage tank, and the problem of material waste caused by mixing when the output material flow is unstable is solved.
Description
Technical Field
The utility model relates to a liquid material mixing apparatus field especially relates to a proportional mixing device.
Background
The existing proportional mixing device generally inputs the liquid in each liquid storage tank into a mixing pipeline or a cavity according to a set proportion for mixing through a plurality of metering pumps with quantitative input, so that the liquid is mixed according to the set proportion; however, when the proportional mixing device is started up each time, the flow rate of the liquid input within a period of time after the metering pump is just started up is unstable, so that the materials mixed within the period of time do not meet the requirement of the set proportion, and the material waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an avoid extravagant proportion mixing arrangement of material.
To achieve the purpose, the utility model adopts the following technical proposal:
a proportional mixing device comprises a first input pipeline, a second input pipeline, a third input pipeline, a mixing cavity, a cooler and an output pipeline;
the first input pipeline comprises an acid liquor storage tank, a first metering pump, a first mass flow meter and a first three-way valve, the acid liquor storage tank is communicated with the input end of the first metering pump, the output end of the first metering pump is communicated with the input end of the first mass flow meter, the output end of the first mass flow meter is communicated with the input end of the first three-way valve, the first output end of the first three-way valve is communicated with the first input end of the mixing cavity, and the second output end of the first three-way valve is communicated with the acid liquor storage tank;
the second input pipeline comprises a clean water storage tank, a second metering pump, a second mass flow meter and a second three-way valve, the clean water storage tank is communicated with the input end of the second metering pump, the output end of the second metering pump is communicated with the input end of the second mass flow meter, the output end of the second mass flow meter is communicated with the input end of the second three-way valve, the first output end of the second three-way valve is communicated with the second input end of the mixing cavity, and the second output end of the second three-way valve is communicated with the clean water storage tank;
the third input pipeline comprises an alkali liquor storage tank, a third metering pump, a third mass flow meter and a third three-way valve; the alkali liquor storage tank is communicated with the input end of the third metering pump, the output end of the third metering pump is communicated with the input end of the third mass flow meter, the output end of the third mass flow meter is communicated with the input end of the third three-way valve, the first output end of the third three-way valve is communicated with the third input end of the mixing cavity, and the third output end of the third three-way valve is communicated with the alkali liquor storage tank;
the output end of the mixing cavity is communicated with the input end of the cooler, and the output end of the cooler is communicated with the output pipeline.
Preferably, the cooler is a plate heat exchanger, an output end of the mixing cavity is communicated with a first input end of the plate heat exchanger, and a first output end of the plate heat exchanger is communicated with the output pipeline.
Preferably, the cooling system further comprises a cooling water tank and a cooling circulating pump, wherein the input end of the cooling circulating pump is communicated with the cooling water tank, the output end of the cooling circulating pump is communicated with the second input end of the plate heat exchanger, and the second output end of the plate heat exchanger is communicated with the cooling water tank.
Preferably, the number of the third metering pumps is two, the input ends of the two third metering pumps are communicated with the alkali liquor storage tank, and the output ends of the two third metering pumps are communicated with the input end of the third mass flow meter.
Preferably, the plate heat exchanger further comprises a pressure gauge, and the detection end of the pressure gauge is arranged between the mixing cavity and the first input end of the plate heat exchanger.
Preferably, the first three-way valve, the second three-way valve and the third three-way valve are all pneumatic three-way valves.
The utility model has the advantages that: through setting up first mass flow meter, second mass flow meter and third mass flow meter are respectively to first measuring pump, the material flow of second measuring pump and third measuring pump output detects, when the material flow is unstable, through controlling first three-way valve, the switching of second three-way valve and third three-way valve, make first measuring pump, the material of second measuring pump and third measuring pump circulates respectively and gets back to the acidizing fluid holding vessel, in clear water holding vessel and the alkali lye holding vessel, first input pipeline has been solved, the mixing leads to the extravagant problem of material when second input pipeline and third output pipeline output material flow are unstable. And meanwhile, a cooler is arranged to cool the mixed liquid after mixing.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
Fig. 1 is a schematic overall structure diagram of one embodiment of the present invention.
Wherein: mixing chamber 2, output pipeline 4, acid liquor storage tank 111, first metering pump 112, first mass flow meter 113, first three-way valve 114, clear water storage tank 121, second metering pump 122, second mass flow meter 123, second three-way valve 124, alkali liquor storage tank 131, third metering pump 132, third mass flow meter 133, third three-way valve 134, plate heat exchanger 3, cooling water tank 31, cooling circulation pump 32, pressure gauge 5.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
A proportional mixing device of this embodiment, referring to fig. 1, includes a first input pipeline, a second input pipeline, a third input pipeline, a mixing chamber 2, a cooler, and an output pipeline 4. The proportion mixing arrangement of this embodiment is used for the acid material, the mixture of alkaline material and clear water, wherein first input pipeline is used for the acid material to the input settlement proportion in the mixing cavity 2, the second input pipeline is used for the clear water to the input settlement proportion in the mixing cavity 2, the third input pipeline is used for the alkaline material to the input settlement proportion in the mixing cavity 2, thereby make acid material, alkaline material and clear water accomplish the mixture in mixing cavity 2 according to settlement proportion, then export through output pipeline 4 after the cooling through the cooler.
The first input pipeline comprises an acid liquor storage tank 111, a first metering pump 112, a first mass flow meter 113 and a first three-way valve 114, the acid liquor storage tank 111 is communicated with the input end of the first metering pump 112, the output end of the first metering pump 112 is communicated with the input end of the first mass flow meter 113, the output end of the first mass flow meter 113 is communicated with the input end of the first three-way valve 114, the first output end of the first three-way valve 114 is communicated with the first input end of the mixing cavity 2, and the second output end of the first three-way valve 114 is communicated with the acid liquor storage tank 111. The acid liquor storage tank 111 is used for storing acid materials to be mixed, the first metering pump 112 is used for conveying the acid materials in the acid liquor storage tank 111 into the mixing cavity 2 according to a set flow, the first mass flow meter 113 is used for detecting whether the flow output by the first metering pump 112 reaches the set flow, and the first three-way valve 114 is used for controlling the communication between the output end of the first metering pump 112 and the mixing cavity 2 or the communication between the output end of the first metering pump 112 and the acid liquor storage tank 111 to be switched; when the first mass flow meter 113 detects that the flow output by the first metering pump 112 does not reach the set flow value, the first three-way valve 114 is switched to enable the second output end of the first three-way valve 114 to be communicated and the first output end to be not communicated, so that the acidic material output by the first metering pump 112 is circulated back to the acid liquor storage tank 111; when the first mass flow meter 113 detects that the flow output by the first metering pump 112 reaches a set flow value, the first three-way valve 114 is switched, so that the first output end of the first three-way valve 114 is connected, and the second output end is not connected, so that the acidic material output by the first metering pump 112 is input into the mixing cavity 2.
The second input pipeline includes clear water holding vessel 121, second metering pump 122, second mass flow meter 123 and second three-way valve 124, clear water holding vessel 121 communicates with the input of second metering pump 122, the output of second metering pump 122 communicates with the input of second mass flow meter 123, the output of second mass flow meter 123 communicates with the input of second three-way valve 124, the first output of second three-way valve 124 communicates with the second input of mixing chamber 2, the second output and the clear water holding vessel 121 intercommunication of second three-way valve 124. The clean water storage tank 121 is used for storing clean water to be mixed, the second metering pump 122 is used for conveying the clean water in the clean water storage tank 121 into the mixing cavity 2 according to a set flow, the second mass flow meter 123 is used for detecting whether the liquid flow output by the second metering pump 122 reaches the set flow, and the second three-way valve 124 is used for controlling the communication between the output end of the second metering pump 122 and the mixing cavity 2 or the communication between the output end of the second metering pump 122 and the clean water storage tank 121; when the second mass flow meter 123 detects that the flow output by the second metering pump 122 does not reach the set flow value, the second three-way valve 124 is switched to enable the second output end of the second three-way valve 124 to be communicated, and the first output end of the second three-way valve 124 is not communicated, so that the clean water output by the second metering pump 122 is circulated back to the clean water storage tank 121; when the second mass flow meter 123 detects that the flow output by the second metering pump 122 reaches the set flow value, the second three-way valve 124 is switched, so that the first output end of the second three-way valve 124 is connected, and the second output end is not connected, so that the clean water output by the second metering pump 122 is input into the mixing cavity 2.
The third input pipeline comprises a lye storage tank 131, a third metering pump 132, a third mass flow meter 133 and a third three-way valve 134; the alkali liquor storage tank 131 is communicated with the input end of a third metering pump 132, the output end of the third metering pump 132 is communicated with the input end of a third mass flow meter 133, the output end of the third mass flow meter 133 is communicated with the input end of a third three-way valve 134, the first output end of the third three-way valve 134 is communicated with the third input end of the mixing cavity 2, and the third output end of the third three-way valve 134 is communicated with the alkali liquor storage tank 131; the alkali liquor storage tank 131 is used for storing alkali materials to be mixed, the third metering pump 132 is used for conveying the alkali materials in the alkali liquor storage tank 131 into the mixing cavity 2 according to a set flow rate, the third mass flow meter 133 is used for detecting whether the flow rate output by the third metering pump 132 reaches the set flow rate, and the third three-way valve 134 is used for controlling the communication between the output end of the third metering pump 132 and the mixing cavity 2 or the communication between the output end of the third metering pump 132 and the alkali liquor storage tank 131 to be switched; when the third mass flow meter 133 detects that the flow output by the third metering pump 132 does not reach the set flow value, the third three-way valve 134 is switched to connect the second output end of the third three-way valve 134 and disconnect the first output end, so that the alkaline material output by the third metering pump 132 is circulated back to the alkaline storage tank 131; when the third mass flow meter 133 detects that the flow output by the third metering pump 132 reaches the set flow value, the third three-way valve 134 is switched, so that the first output end of the third three-way valve 134 is connected, and the second output end is not connected, so that the alkaline material output by the third metering pump 132 is input into the mixing cavity 2.
Preferably, the cooler is a plate heat exchanger 3, the output end of the mixing cavity 2 is communicated with the first input end of the plate heat exchanger 3, and the first output end of the plate heat exchanger 3 is communicated with the output pipeline 4. Because the mixing of the acidic material and the alkaline material can generate an exothermic reaction, namely the temperature of the mixed liquid can be increased, a cooler is arranged to cool the mixed liquid output by the mixing cavity 2, and then the mixed liquid is conveyed to other stations of the production line through the output pipeline 4; in order to improve the cooling effect and ensure the cooling efficiency, the cooler adopts a plate heat exchanger 3.
In order to further improve the cooling effect to the mixed liquid, this embodiment still includes cooling water tank 31 and cooling circulation pump 32, and cooling circulation pump 32's input and cooling water tank 31 intercommunication, cooling circulation pump 32's output and plate heat exchanger 3's second input intercommunication, plate heat exchanger 3's second output and cooling water tank 31 intercommunication. The cooling water provided by the cooling water tank 31 is input to the second input end of the plate heat exchanger 3, and then is circulated back to the cooling water tank 31 through the second output end of the plate heat exchanger 3, so that the purpose of heat transfer is achieved, and the efficiency of cooling the mixed liquid is improved.
Preferably, there are two third metering pumps 132, the input ends of the two third metering pumps 132 are both communicated with the lye storage tank 131, and the output ends of the two third metering pumps 132 are both communicated with the input end of the third mass flow meter. Because the alkaline material input proportion set in this embodiment is higher, the way of setting two third metering pumps 132 in parallel is used for supplying alkaline materials, and the output flow of alkaline materials is ensured to reach the set flow value.
Preferably, a pressure gauge 5 is further included, and a detection end of the pressure gauge 5 is arranged between the mixing cavity 2 and the first input end of the plate heat exchanger 3. Pressure gauge 5 is used for detecting the output pressure of mixing cavity 2, and the operating personnel of being convenient for acquires proportion mixing arrangement's operational aspect, can in time discover when the operation takes place unusually.
Preferably, the first, second and third three- way valves 114, 124, 134 are all pneumatic three-way valves. The first, second, and third three- way valves 114, 124, and 134 can be controlled by a PLC controller, and the first, second, and third three- way valves 114, 124, and 134 can be automatically switched.
The proportional mixing process of this example is: when the work is started, the PLC controller simultaneously opens the first metering pump 112, the second metering pump 122 and the second metering pump 122, so that the liquid materials output by the first metering pump 112, the second metering pump 122 and the third metering pump 132 respectively pass through the first mass flow meter 113, the second mass flow meter 123 and the third mass flow meter 133, when the liquid flow detected by any one of the first mass flow meter 113, the second mass flow meter 123 and the third mass flow meter 133 does not reach a set value, the first three-way valve 114, the second three-way valve 124 and the third three-way valve 134 respectively communicate the first metering pump 112 with the acid liquid storage tank 111, the second metering pump 122 with the clear water storage tank 121 and the third metering pump 132 with the alkali liquid storage tank 131, so that the material with unstable flow is circulated back to the storage tank where the material is located, and waste caused by unqualified mixed liquid is avoided. When the liquid flow rates detected by the first mass flow meter 113, the second mass flow meter 123 and the third mass flow meter 133 reach set values, the first three-way valve 114, the second three-way valve 124 and the third three-way valve 134 respectively communicate the first metering pump 112, the second metering pump 122 and the third metering pump 132 with the mixing cavity 2, so as to mix the acidic material, the clear water and the alkaline material, and after the mixing cavity 2 is mixed, the mixed liquid is cooled by the plate heat exchanger 3, so that the qualified mixed liquid is output by the output pipeline 4. The communication mode of each element of the embodiment is pipeline communication.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. A proportional mixing device is characterized by comprising a first input pipeline, a second input pipeline, a third input pipeline, a mixing cavity, a cooler and an output pipeline;
the first input pipeline comprises an acid liquor storage tank, a first metering pump, a first mass flow meter and a first three-way valve, the acid liquor storage tank is communicated with the input end of the first metering pump, the output end of the first metering pump is communicated with the input end of the first mass flow meter, the output end of the first mass flow meter is communicated with the input end of the first three-way valve, the first output end of the first three-way valve is communicated with the first input end of the mixing cavity, and the second output end of the first three-way valve is communicated with the acid liquor storage tank;
the second input pipeline comprises a clean water storage tank, a second metering pump, a second mass flow meter and a second three-way valve, the clean water storage tank is communicated with the input end of the second metering pump, the output end of the second metering pump is communicated with the input end of the second mass flow meter, the output end of the second mass flow meter is communicated with the input end of the second three-way valve, the first output end of the second three-way valve is communicated with the second input end of the mixing cavity, and the second output end of the second three-way valve is communicated with the clean water storage tank;
the third input pipeline comprises an alkali liquor storage tank, a third metering pump, a third mass flow meter and a third three-way valve; the alkali liquor storage tank is communicated with the input end of the third metering pump, the output end of the third metering pump is communicated with the input end of the third mass flow meter, the output end of the third mass flow meter is communicated with the input end of the third three-way valve, the first output end of the third three-way valve is communicated with the third input end of the mixing cavity, and the third output end of the third three-way valve is communicated with the alkali liquor storage tank;
the output end of the mixing cavity is communicated with the input end of the cooler, and the output end of the cooler is communicated with the output pipeline.
2. The proportioning device of claim 1 wherein the cooler is a plate heat exchanger, the mixing chamber has an output in communication with a first input of the plate heat exchanger, and the plate heat exchanger has a first output in communication with the output line.
3. The proportioning device of claim 2 further comprising a cooling water tank and a cooling circulation pump, an input of the cooling circulation pump being in communication with the cooling water tank, an output of the cooling circulation pump being in communication with a second input of the plate heat exchanger, and a second output of the plate heat exchanger being in communication with the cooling water tank.
4. The proportioning device of claim 1 wherein there are two third metering pumps, the input of each of the two third metering pumps is connected to the lye storage tank, and the output of each of the two third metering pumps is connected to the input of the third mass flow meter.
5. The proportioning device of claim 2 further comprising a pressure gauge having a sensing end disposed between the mixing chamber and the first input end of the plate heat exchanger.
6. The proportioning device of claim 1 wherein the first, second and third three-way valves are pneumatic three-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096732.5U CN214233911U (en) | 2020-12-21 | 2020-12-21 | Proportional mixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096732.5U CN214233911U (en) | 2020-12-21 | 2020-12-21 | Proportional mixing device |
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| CN214233911U true CN214233911U (en) | 2021-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069184A (en) * | 2022-05-31 | 2022-09-20 | 南通联升电力科技有限公司 | Continuous saponification control system based on distributed IO |
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- 2020-12-21 CN CN202023096732.5U patent/CN214233911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069184A (en) * | 2022-05-31 | 2022-09-20 | 南通联升电力科技有限公司 | Continuous saponification control system based on distributed IO |
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