CN112711279A - Method for realizing random liquid level feeding - Google Patents
Method for realizing random liquid level feeding Download PDFInfo
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- CN112711279A CN112711279A CN202011481461.7A CN202011481461A CN112711279A CN 112711279 A CN112711279 A CN 112711279A CN 202011481461 A CN202011481461 A CN 202011481461A CN 112711279 A CN112711279 A CN 112711279A
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- liquid level
- injection container
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000011344 liquid material Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010667 large scale reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a realize reinforced method of arbitrary liquid level, provides the reinforced detection device of liquid level, and it includes annotates the material container, the water pump, pressure sensor, and controller, the computational formula of controller is: p is rho g h, P is liquid pressure, rho is liquid material density, g is a gravity constant, and h is liquid level height; before adding a liquid material to be injected into the material injection container, measuring the density rho of the liquid material to be injected; and in the charging process, the controller continuously monitors the pressure value P fed back by the pressure sensor, when the pressure value P fed back by the pressure sensor is greater than or equal to the pressure P required to be corresponding to the liquid level h, the controller gives a signal to shut down the water pump, otherwise, the water pump continuously charges the material into the material injection container. The method for realizing the feeding at any liquid level has the advantages of reliable principle, convenient setting, simple and convenient installation, suitability for various reaction vessels and capability of continuously and randomly controlling the liquid level.
Description
Technical Field
The invention belongs to the technical field of liquid level detection and control, and particularly relates to a method for realizing random liquid level feeding.
Background
At present, liquid level control is frequently required to be carried out when liquid is injected into industrial production, a floating ball is adopted in most of the liquid level control devices, a floating ball sensor is a switch based on a magnetic principle, when a floating ball is positioned below, the magnetic switch is disconnected, the floating ball floats upwards when the floating ball switch is immersed in liquid, the magnetic switch is closed, and the control of the liquid level is realized through the principle.
However, the float sensor can only perform fixed-point control, the height of the controlled liquid level depends on the installation position of the float switch, other positions can be realized only by additionally installing other float switches, the installation is complicated, for a large-scale reaction kettle, the installation is complicated, a long float switch wire needs to be arranged, the reliability and the corrosion prevention treatment need to be considered, the engineering quantity is large, the float switch has requirements on the liquid density, and if the liquid density is small, the floating ball cannot be floated, the floating ball is not suitable.
Disclosure of Invention
In view of the above, the present invention provides a method for realizing any liquid level feeding which can be used for various reaction vessels, so as to meet industrial requirements.
A method for realizing arbitrary liquid level charging comprises the following specific steps:
step S100: providing a liquid level feeding detection device which comprises an injection container, a water pump, a pressure sensor and a controller, wherein the water pump is arranged on one side of the injection container and used for conveying liquid materials, the pressure sensor is arranged at the bottom of the injection container, the controller is arranged on the water pump, the pressure sensor is connected with the controller, and the water pump is communicated with the injection container;
step S110: the calculation formula of the controller is as follows: p is rho g h, P is liquid pressure, rho is liquid material density, g is a gravity constant, and h is liquid level height;
step S120: before adding a liquid material to be injected into the material injection container, measuring the density rho of the liquid material to be injected;
step S130: setting a liquid level height h to be added and a measured density rho of the liquid material in the controller, and automatically calculating the pressure P under the liquid level h by the controller;
step S140: starting the water pump, and adding a liquid material into the material injection container through the water pump;
step S150: and in the charging process, the controller continuously monitors the pressure value P fed back by the pressure sensor, when the pressure value P fed back by the pressure sensor is greater than or equal to the pressure P required to be corresponding to the liquid level h, the controller gives a signal to shut down the water pump, otherwise, the water pump continuously charges the material into the material injection container.
Further, step S160: in the charging process, the pressure value P fed back by the pressure sensor is unchanged for a long time, and the controller gives a signal to shut down the water pump.
Further, before adding the liquid material into the material injection container, detecting that no other liquid material exists in the material injection container.
Further, the density ρ of the liquid material to be injected is measured several times and averaged.
Furthermore, the controller consists of a digital display screen, an alarm and a plurality of keys.
Further, the water pump is a diaphragm pump.
Compared with the prior art, the method for realizing the feeding at any liquid level controls the water pump to inject the liquid material into the material injection container through the pressure sensor of the liquid level feeding detection device and the controller. The calculation formula of the controller is as follows: p is rho g h, P is the liquid pressure, rho is the liquid material density, g is the gravity constant, and h is the liquid level height. Setting a liquid level height h to be added and a measured liquid material density rho in the controller, automatically calculating a pressure P under the liquid level h to be corresponding by the controller, continuously monitoring a pressure value P fed back by the pressure sensor by the controller in the feeding process, giving a signal by the controller when the pressure value P fed back by the pressure sensor is more than or equal to the pressure P under the liquid level h to be corresponding automatically calculated by the controller, turning off the water pump, and otherwise, continuously feeding the water into the material injection container by the water pump. The method for realizing the feeding at any liquid level has the advantages of reliable principle, convenient setting, simple and convenient installation, suitability for various reaction vessels and capability of continuously and randomly controlling the liquid level.
Drawings
FIG. 1 is a schematic structural view of a liquid level charging detection device provided by the present invention.
FIG. 2 is a schematic view of a flow structure of a method for realizing arbitrary liquid level charging provided by the invention.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, which are flow charts of the method for realizing arbitrary liquid level charging provided by the present invention. The method for realizing the feeding at any liquid level comprises the following specific steps of:
step S100: providing a liquid level charging detection device which comprises a material injection container 10, a water pump 20 which is arranged on one side of the material injection container 10 and is used for transmitting liquid materials, a pressure sensor 30 which is arranged at the bottom of the material injection container 10, and a control instrument 40 which is arranged on the water pump 20, wherein the pressure sensor 30 is connected with the control instrument 40, and the water pump 20 is communicated with the material injection container 10;
step S110: the calculation formula of the controller 40 is as follows: p is rho g h, P is liquid pressure, rho is liquid material density, g is a gravity constant, and h is liquid level height;
step S120: before adding liquid into the material injection container 10, measuring the density rho of the liquid material to be injected;
step S130: setting a liquid level height h to be added and a measured density rho of the liquid material in the controller 40, and automatically calculating the pressure P under the liquid level h by the controller 40;
step S140: starting the water pump 20, and adding the liquid material into the material injection container 10 through the water pump 20;
step S150: the controller 40 continuously monitors the pressure value P fed back by the pressure sensor 30 during the charging process, and when the pressure value P fed back by the pressure sensor 30 is greater than or equal to the pressure P at the liquid level h required to be corresponded automatically calculated by the controller 40, the controller 40 gives a signal to shut down the water pump 20, otherwise, the water pump 20 continues to charge the material into the material injection container 10.
Step S160: in the charging process, the pressure value P fed back by the pressure sensor 30 is unchanged for a long time, and the controller 40 gives a signal to shut down the water pump 20.
In step S120, before the liquid material is added into the material injection container 10, it is detected that there is no other liquid material in the material injection container 10, so as to ensure that the density of the liquid material is unchanged after the liquid material is added into the material injection container 10, and the density ρ of the liquid material to be injected is measured for multiple times, and averaged, so as to ensure that the calculation of the controller 40 is accurate.
In step S160, the pressure value P fed back by the pressure sensor 30 is not changed for a long time, that is, the quality of the liquid material in the material injection container 10 is not changed, the water pump 20 fails, or the liquid material in the container is filled, so the controller 40 gives a signal to shut down the water pump 20.
The water pump 20 is a diaphragm pump, also called a control pump, which is the main type of actuator, and is operated by power to change the flow rate of fluid by receiving a control signal output by the adjustment control unit. The diaphragm pump is used for receiving a control signal of a regulator or a computer in the control process, changing the flow of the regulated medium and maintaining the regulated parameters within a required range, so as to achieve the automation of the production process.
The controller 40 is composed of a digital display screen (not shown), an alarm (not shown), and a plurality of keys (not shown), wherein the digital display screen, the alarm, and the keys are all of the prior art, and are not described herein again.
In addition, as can be seen from the calculation formula of the controller 40, the measurement process is only related to the density and the liquid level height of the liquid material, and is not related to the shape and the size of the material injection container 10, so that the measurement calculation of the controller 40 is not influenced by any material injection container 10 with any shape.
Compared with the prior art, the method for realizing arbitrary liquid level feeding provided by the invention controls the water pump 20 to inject liquid material into the material injection container 10 through the pressure sensor 30 of the liquid level feeding detection device and the controller 40. The calculation formula of the controller 40 is as follows: p is rho g h, P is the liquid pressure, rho is the liquid material density, g is the gravity constant, and h is the liquid level height. Setting a liquid level height h to be added and a measured density rho of the liquid material in the controller 40, automatically calculating a pressure P at the liquid level h to be corresponding by the controller 40, continuously monitoring a pressure value P fed back by the pressure sensor 30 by the controller 40 in the charging process, giving a signal by the controller 40 to shut down the water pump 20 when the pressure value P fed back by the pressure sensor 30 is greater than or equal to the pressure P at the liquid level h to be corresponding automatically calculated by the controller 40, and otherwise, continuously charging the material into the material injection container 10 by the water pump 20. The method for realizing the feeding at any liquid level has the advantages of reliable principle, convenient setting, simple and convenient installation, suitability for various reaction vessels and capability of continuously and randomly controlling the liquid level.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (6)
1. A method for realizing arbitrary liquid level charging comprises the following specific steps:
step S100: providing a liquid level feeding detection device which comprises an injection container, a water pump, a pressure sensor and a controller, wherein the water pump is arranged on one side of the injection container and used for conveying liquid materials, the pressure sensor is arranged at the bottom of the injection container, the controller is arranged on the water pump, the pressure sensor is connected with the controller, and the water pump is communicated with the injection container;
step S110: the calculation formula of the controller is as follows: p is rho g h, P is liquid pressure, rho is liquid material density, g is a gravity constant, and h is liquid level height;
step S120: before adding a liquid material to be injected into the material injection container, measuring the density rho of the liquid material to be injected;
step S130: setting a liquid level height h to be added and a measured density rho of the liquid material in the controller, and automatically calculating the pressure P under the liquid level h by the controller;
step S140: starting the water pump, and adding a liquid material into the material injection container through the water pump; step S150: and in the charging process, the controller continuously monitors the pressure value P fed back by the pressure sensor, when the pressure value P fed back by the pressure sensor is greater than or equal to the pressure P required to be corresponding to the liquid level h, the controller gives a signal to shut down the water pump, otherwise, the water pump continuously charges the material into the material injection container.
2. The method of any level of charge realization as claimed in claim 1, further comprising the steps of:
step S160: in the charging process, the pressure value P fed back by the pressure sensor is unchanged for a long time, and the controller gives a signal to shut down the water pump.
3. A method of effecting random level charging as claimed in claim 1 wherein: detecting the absence of other liquid material in the injection container before adding the liquid material into the injection container.
4. A method of effecting random level charging as claimed in claim 1 wherein: the density rho of the liquid material to be injected is measured several times and averaged.
5. A method of effecting random level charging as claimed in claim 1 wherein: the controller is composed of a digital display screen, an alarm and a plurality of keys.
6. A method of effecting random level charging as claimed in claim 1 wherein: the water pump is a diaphragm pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481461.7A CN112711279A (en) | 2020-12-16 | 2020-12-16 | Method for realizing random liquid level feeding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011481461.7A CN112711279A (en) | 2020-12-16 | 2020-12-16 | Method for realizing random liquid level feeding |
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| CN112711279A true CN112711279A (en) | 2021-04-27 |
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| CN202011481461.7A Pending CN112711279A (en) | 2020-12-16 | 2020-12-16 | Method for realizing random liquid level feeding |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060018719A (en) * | 2004-08-25 | 2006-03-02 | (주)어헤드텍 | Device and measuring method of liquid volume remaining in a vessel with arbitrary shape |
| CN102273912A (en) * | 2010-06-08 | 2011-12-14 | 洪家平 | Intelligent and full-automatic cooking robot |
| CN104321626A (en) * | 2012-05-09 | 2015-01-28 | 兰奇里奥集团股份公司 | Milk level measurement device and related measurement method |
| CN106404104A (en) * | 2016-06-24 | 2017-02-15 | 钦州学院 | High-precision liquid level detection device |
| RU2725635C1 (en) * | 2019-04-24 | 2020-07-03 | Сергей Иванович Ивандаев | Method of measuring density and level of liquid in container and device for its implementation |
-
2020
- 2020-12-16 CN CN202011481461.7A patent/CN112711279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060018719A (en) * | 2004-08-25 | 2006-03-02 | (주)어헤드텍 | Device and measuring method of liquid volume remaining in a vessel with arbitrary shape |
| CN102273912A (en) * | 2010-06-08 | 2011-12-14 | 洪家平 | Intelligent and full-automatic cooking robot |
| CN104321626A (en) * | 2012-05-09 | 2015-01-28 | 兰奇里奥集团股份公司 | Milk level measurement device and related measurement method |
| CN106404104A (en) * | 2016-06-24 | 2017-02-15 | 钦州学院 | High-precision liquid level detection device |
| RU2725635C1 (en) * | 2019-04-24 | 2020-07-03 | Сергей Иванович Ивандаев | Method of measuring density and level of liquid in container and device for its implementation |
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