CN112999917A - Urea solution preparation equipment and control method and control device thereof - Google Patents
Urea solution preparation equipment and control method and control device thereof Download PDFInfo
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- CN112999917A CN112999917A CN202110179405.6A CN202110179405A CN112999917A CN 112999917 A CN112999917 A CN 112999917A CN 202110179405 A CN202110179405 A CN 202110179405A CN 112999917 A CN112999917 A CN 112999917A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2212—Level of the material in the mixer
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories For Mixers (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
The invention provides urea solution preparation equipment and a control method and a control device thereof, wherein the urea solution preparation equipment comprises: a container having a mixing chamber therein; the container is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity; the ultrasonic cleaning device is arranged in the mixing cavity; and at least part of the stirring device is arranged in the mixing cavity so as to stir the liquid in the mixing cavity through the stirring device. The urea solution preparation equipment solves the problem that the urea solution preparation equipment in the prior art is inconvenient to clean.
Description
Technical Field
The invention relates to the field of urea solution preparation, in particular to urea solution preparation equipment and a control method and a control device thereof.
Background
In the process of preparing the urea solution, along with the production operation, a large amount of impurities and foreign matters are remained at the bottom of the mixing barrel, and the quality of the prepared urea solution is reduced due to the continuous use of the mixing barrel. Therefore, the operator is required to open the mixing tub periodically and then manually clean the mixing tub, which is inconvenient in cleaning operation.
Disclosure of Invention
The invention mainly aims to provide urea solution preparation equipment, a control method and a control device thereof, and aims to solve the problem that the urea solution preparation equipment in the prior art is inconvenient to clean.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a urea solution production apparatus comprising: a container having a mixing chamber therein; the container is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity; the ultrasonic cleaning device is arranged in the mixing cavity; and at least part of the stirring device is arranged in the mixing cavity so as to stir the liquid in the mixing cavity through the stirring device.
Further, the urea solution preparation equipment comprises a water inlet pipeline and a sewage discharge pipeline, wherein the water inlet pipeline is provided with a water inlet valve and a pump; the sewage discharge pipeline is provided with a sewage discharge valve.
Furthermore, the urea solution preparation equipment comprises a controller, wherein the ultrasonic cleaning device, the stirring device, the water inlet valve, the pump and the blow-down valve are in communication connection with the controller, and the controller controls the actions of the ultrasonic cleaning device, the stirring device, the water inlet valve, the pump and the blow-down valve.
Furthermore, the ultrasonic cleaning device is provided with a plurality of ultrasonic cleaning devices which are arranged at intervals; and/or the ultrasonic cleaning device is arranged at the inner bottom of the container.
Further, the urea solution preparation equipment comprises a liquid level detection device, and the liquid level detection device is installed on the container to detect the liquid level height in the container.
According to a second aspect of the present invention, there is provided a control method of a urea solution production apparatus, the control method including: receiving a trigger signal; responding to the trigger signal, and controlling the ultrasonic cleaning device to start; controlling the stirring device to start under the condition that the running time of the ultrasonic cleaning device reaches a first preset time; and controlling the blow-down valve to be opened under the condition that the running time of the stirring device reaches a second preset time.
Further, in the case where the operation time period of the stirring device reaches the second predetermined time period, the control method of the urea solution production apparatus further includes: and controlling the ultrasonic cleaning device to stop working.
Further, after receiving the trigger signal, before controlling the ultrasonic cleaning device to start in response to the trigger signal, the control method of the urea solution preparation apparatus further includes: controlling the water inlet valve and the pump to be opened to replenish water into the container; and detecting the liquid level of the container, and controlling the water inlet valve and the pump to be closed when the liquid level in the container reaches a first preset height.
Further, after controlling the blowdown valve to open, the control method of the urea solution production apparatus further includes: detecting the liquid level in the container in real time; controlling the drain valve to close in case the liquid in the container is emptied; controlling the water inlet valve and the pump to be opened to replenish water into the container; and under the condition that the liquid level in the container reaches a second preset height, controlling the water inlet valve and the pump to be closed, and controlling the blow-down valve to be opened.
Further, after controlling the water inlet valve and the pump to be closed and controlling the blowdown valve to be opened, the control method of the urea solution preparation apparatus further includes: controlling the drain valve to close in case the liquid in the container is emptied; the stirring device was turned off.
According to a third aspect of the present invention, there is provided a control device for a urea solution production apparatus, comprising: a receiving unit for receiving a trigger signal; the first control unit is used for responding to the trigger signal and controlling the ultrasonic cleaning device to start; the second control unit is used for controlling the stirring device to start under the condition that the running time of the ultrasonic cleaning device reaches a first preset time; and the third control unit is used for controlling the blow-down valve to be opened under the condition that the running time of the stirring device reaches the second preset time.
According to a fourth aspect of the invention, a processor is provided for running a program, wherein the program when running performs the above-mentioned method of controlling a plant for the preparation of a urea solution.
According to a fifth aspect of the present invention, there is provided a non-volatile storage medium comprising a stored program, wherein the program, when executed, controls an apparatus in which the non-volatile storage medium is located to perform the above-described method of controlling a urea solution production apparatus.
According to a sixth aspect of the present invention, there is provided a urea treatment system comprising: the above urea solution production apparatus; and the processor is in communication connection with the urea solution preparation equipment and is used for running a program, wherein the program is used for executing the control method of the urea solution preparation equipment during running.
The urea solution preparation equipment applying the technical scheme of the invention comprises: a container having a mixing chamber therein; the container is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity; the ultrasonic cleaning device is arranged in the mixing cavity; and at least part of the stirring device is arranged in the mixing cavity so as to stir the liquid in the mixing cavity through the stirring device. Through setting up ultrasonic cleaning device in mixing the intracavity, when needs wash urea solution preparation equipment, add water to mixing the intracavity through the water inlet, control ultrasonic cleaning device work, cooperation agitating unit's stirring effect can be washd in the container effectively to need not the manual washing of back after operating personnel opens urea solution preparation equipment, simplified the inconvenient problem of urea solution preparation equipment cleaning operation effectively.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of a plant for the preparation of urea solution according to the present invention;
FIG. 2 shows a schematic flow diagram of an embodiment of a method for controlling a plant for the preparation of urea solution according to the invention;
FIG. 3 shows a schematic flow diagram of another embodiment of a method for controlling a plant for the preparation of urea solution according to the invention;
fig. 4 shows a schematic view of an embodiment of a control device of a urea solution production plant according to the invention.
Wherein the figures include the following reference numerals:
1. a container; 10. a mixing chamber; 2. an ultrasonic cleaning device; 3. a stirring device; 4. a water inlet valve; 5. a pump; 6. a blowoff valve.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the present invention provides a urea solution preparing apparatus, including: a container 1, wherein the container 1 is internally provided with a mixing cavity 10; the container 1 is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity 10; the ultrasonic cleaning device 2 is arranged in the mixing cavity 10; and the stirring device 3, at least part of the stirring device 3 is arranged in the mixing cavity 10, so that the liquid in the mixing cavity 10 is stirred by the stirring device 3.
The urea solution production apparatus of the present invention comprises: a container 1, wherein the container 1 is internally provided with a mixing cavity 10; the container 1 is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity 10; the ultrasonic cleaning device 2 is arranged in the mixing cavity 10; and the stirring device 3, at least part of the stirring device 3 is arranged in the mixing cavity 10, so that the liquid in the mixing cavity 10 is stirred by the stirring device 3. Through setting up ultrasonic cleaning device 2 in mixing chamber 10, when needs wash urea solution preparation equipment, add water in to mixing chamber 10 through the water inlet, control ultrasonic cleaning device 2 work, cooperation agitating unit 3's stirring effect can wash in container 1 effectively to need not the manual washing of back that operating personnel opens urea solution preparation equipment, simplified the inconvenient problem of urea solution preparation equipment cleaning operation effectively.
In order to realize the water supply into the mixing chamber 10, in this embodiment, the urea solution preparation equipment includes a water inlet pipeline and a sewage discharge pipeline, and the water inlet pipeline is provided with a water inlet valve 4 and a pump 5; a blow-off valve 6 is arranged on the blow-off pipeline. Thus, after the water inlet valve 4 is opened and the pump 5 is started, water can be supplied to the mixing chamber 10 by the driving of the pump 5. When the cleaning is completed, the waste water in the mixing chamber 10 can be discharged by opening the blowoff valve 6.
Of course, other ways of supplying water into the mixing chamber 10 are possible, for example, without the pump 5, by allowing water to enter the mixing chamber 10 under the influence of gravity.
Specifically, the urea solution preparation equipment comprises a controller, wherein the ultrasonic cleaning device 2, the stirring device 3, the water inlet valve 4, the pump 5 and the blow-down valve 6 are in communication connection with the controller, and the controller controls the actions of the ultrasonic cleaning device 2, the stirring device 3, the water inlet valve 4, the pump 5 and the blow-down valve 6.
In order to enhance the cleaning effect on the container 1, it is preferable that the ultrasonic cleaning device 2 is provided in plurality, and the plurality of ultrasonic cleaning devices 2 are provided at intervals. In the present embodiment, in order to enhance the cleaning effect on the inner bottom of the container 1, the ultrasonic cleaning device 2 is attached to the inner bottom of the container 1.
Specifically, the urea solution preparation plant comprises a liquid level detection device, which is mounted to the container 1 to detect the liquid level height inside the container 1.
Referring to fig. 2 and 3, the present invention further provides a control method of a urea solution preparation apparatus, the control method including: s102, receiving a trigger signal; s104, responding to the trigger signal, and controlling the ultrasonic cleaning device 2 to start; s106, controlling the stirring device 3 to start under the condition that the running time of the ultrasonic cleaning device 2 reaches a first preset time; and S108, controlling the blow-down valve 6 to be opened under the condition that the running time of the stirring device 3 reaches a second preset time. Through receiving user's trigger signal, control ultrasonic cleaning device 2 starts, can wash in container 1 under the effect of ultrasonic wave, reach under the condition of first predetermined duration when wasing, control agitating unit 3 work, with ultrasonic cleaning device 2 collaborative work, can improve the cleaning performance to container 1 inner wall effectively, after agitating unit 3 work second predetermined duration, the impurity of container 1 inner wall is washed down effectively, control blowoff valve 6 is opened and to be discharged the inside waste water of container 1 this moment, thereby the realization has realized the effective washing to container 1 under the condition of not opening container 1, the inconvenient problem of current urea preparation equipment washing has been solved.
Specifically, in the case where the stirring device 3 is operated for a second predetermined period of time, and the impurities on the inner wall of the vessel 1 have been washed effectively, the control method of the urea solution production apparatus further includes: the ultrasonic cleaning device 2 is controlled to stop working, thereby saving energy.
To further facilitate the cleaning operation, the method for controlling the urea solution preparation plant, after receiving the trigger signal, before controlling the ultrasonic cleaning device 2 to start up in response to the trigger signal, further comprises: controlling the water inlet valve 4 and the pump 5 to be opened to replenish water into the container 1; and detecting the liquid level of the container 1, and controlling the water inlet valve 4 and the pump 5 to be closed when the liquid level in the container 1 reaches a first preset height. Thus, after receiving the trigger signal, the water inlet valve 4 and the pump 5 can be automatically opened to supplement water into the container 1 of the urea solution preparation equipment, manual water addition is not needed, and the cleaning operation of the urea solution preparation equipment is further facilitated.
Specifically, after controlling the blowdown valve 6 to open, the control method of the urea solution production apparatus further includes: detecting the liquid level in the container 1 in real time; in case the liquid in the container 1 is emptied, the blowdown valve 6 is controlled to close; controlling the water inlet valve 4 and the pump 5 to be opened to replenish water into the container 1; in case the liquid level in the vessel 1 reaches a second preset level, the water inlet valve 4 and the pump 5 are controlled to be closed, and the blowdown valve 6 is controlled to be opened.
After controlling the water inlet valve 4 and the pump 5 to be closed and controlling the blowdown valve 6 to be opened, the urea solution preparation plant is cleaned, and at this time, the control method of the urea solution preparation plant further includes: in case the liquid in the container 1 is emptied, the blowdown valve 6 is controlled to close; the stirring device 3 is switched off. Thus, the automatic recovery of the urea solution preparation equipment is realized, and the convenience for subsequent production operation is facilitated.
Referring to fig. 4, the present invention further provides a control apparatus for a urea solution preparation apparatus, including: a receiving unit for receiving a trigger signal; the first control unit is used for responding to the trigger signal and controlling the ultrasonic cleaning device 2 to start; the second control unit is used for controlling the stirring device 3 to start under the condition that the running time of the ultrasonic cleaning device 2 reaches a first preset time; and the third control unit is used for controlling the blowdown valve 6 to open when the running time of the stirring device 3 reaches the second preset time.
Receiving a trigger signal of a user through a receiving unit, controlling the ultrasonic cleaning device 2 to start by a first control unit, cleaning the inside of the container 1 under the action of ultrasonic waves, controlling the stirring device 3 to work by a second control unit when the cleaning reaches a first preset time, and working in cooperation with the ultrasonic cleaning device 2, so that the cleaning effect on the inner wall of the container 1 can be effectively improved, controlling the blow-down valve 6 to open to discharge waste water in the container 1 when the stirring device 3 works for a second preset time, thereby realizing effective cleaning of the container 1 under the condition of not opening the container 1, and solving the problem that the existing urea preparation equipment is inconvenient to clean.
Specifically, in the case where the operation time of the stirring device 3 reaches the second predetermined time, and the impurities on the inner wall of the container 1 have been effectively washed, the control device of the urea solution production apparatus further includes a fourth control unit for controlling the ultrasonic cleaning device 2 to stop working, thereby saving energy.
In order to further facilitate the cleaning operation, the control device of the urea solution preparation plant further comprises a fifth control unit and a detection unit, wherein the fifth control unit is used for controlling the water inlet valve 4 and the pump 5 to be opened to replenish water into the container 1 after receiving the trigger signal and before responding to the trigger signal and controlling the ultrasonic cleaning device 2 to be started; the detection unit is used for detecting the liquid level of the container 1, and controlling the water inlet valve 4 and the pump 5 to be closed when the liquid level in the container 1 reaches a first preset height. Thus, after receiving the trigger signal, the water inlet valve 4 and the pump 5 can be automatically opened to supplement water into the container 1 of the urea solution preparation equipment, manual water addition is not needed, and the cleaning operation of the urea solution preparation equipment is further facilitated.
In particular, the control device of the urea solution preparation plant further comprises a sixth control unit which, after controlling the opening of the blowdown valve 6: the detection unit detects the liquid level in the container 1 in real time; in case the liquid in the container 1 is emptied, the sixth control unit is adapted to controlling the blow-off valve 6 to close; controlling the water inlet valve 4 and the pump 5 to be opened to replenish water into the container 1; in case the liquid level in the vessel 1 reaches a second preset level, the water inlet valve 4 and the pump 5 are controlled to be closed, and the blowdown valve 6 is controlled to be opened.
The control device of the urea solution preparation equipment also comprises a seventh control unit, after the water inlet valve 4 and the pump 5 are controlled to be closed and the blowdown valve 6 is controlled to be opened, the urea solution preparation equipment is cleaned, and at the moment, the seventh control unit is used for controlling the blowdown valve 6 to be closed under the condition that the liquid in the container 1 is emptied; the stirring device 3 is switched off. Thus, the automatic recovery of the urea solution preparation equipment is realized, and the convenience for subsequent production operation is facilitated.
The invention also provides a processor for running a program, wherein the program executes the control method of the urea solution preparation equipment during running.
In addition, the invention also provides a nonvolatile storage medium which comprises a stored program, wherein the nonvolatile storage medium is controlled to execute the control method of the urea solution preparation equipment when the program runs.
Finally, the present invention also provides a urea treatment system comprising: the above urea solution production apparatus; and the processor is in communication connection with the urea solution preparation equipment and is used for running a program, wherein the program is used for executing the control method of the urea solution preparation equipment during running.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the urea solution production apparatus of the present invention comprises: a container 1, wherein the container 1 is internally provided with a mixing cavity 10; the container 1 is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity 10; the ultrasonic cleaning device 2 is arranged in the mixing cavity 10; and the stirring device 3, at least part of the stirring device 3 is arranged in the mixing cavity 10, so that the liquid in the mixing cavity 10 is stirred by the stirring device 3. Through setting up ultrasonic cleaning device 2 in mixing chamber 10, when needs wash urea solution preparation equipment, add water in to mixing chamber 10 through the water inlet, control ultrasonic cleaning device 2 work, cooperation agitating unit 3's stirring effect can wash in container 1 effectively to need not the manual washing of back that operating personnel opens urea solution preparation equipment, simplified the inconvenient problem of urea solution preparation equipment cleaning operation effectively.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A urea solution production plant, characterized in that it comprises:
a container (1), a mixing chamber (10) is arranged in the container (1); the container (1) is provided with a water inlet and a sewage draining outlet which are both communicated with the mixing cavity (10);
the ultrasonic cleaning device (2) is arranged in the mixing cavity (10);
the stirring device (3), at least part of the stirring device (3) is arranged in the mixing cavity (10) so as to stir the liquid in the mixing cavity (10) through the stirring device (3).
2. The plant for the preparation of urea solution according to claim 1, characterized in that it comprises a water inlet line equipped with a water inlet valve (4) and a pump (5) and a blowdown line; and a blow-down valve (6) is arranged on the blow-down pipeline.
3. Urea solution production plant according to claim 2, characterized in that it comprises a controller, to which the ultrasonic cleaning device (2), the stirring device (3), the water inlet valve (4), the pump (5) and the blow-off valve (6) are communicatively connected, which controls the actions of the ultrasonic cleaning device (2), the stirring device (3), the water inlet valve (4), the pump (5) and the blow-off valve (6).
4. The plant for the preparation of urea solution according to claim 1, characterized in that said ultrasonic cleaning device (2) is a plurality of said ultrasonic cleaning devices (2) arranged at a distance from each other; and/or the presence of a gas in the gas,
the ultrasonic cleaning device (2) is arranged at the inner bottom of the container (1).
5. Plant for the preparation of urea solution according to any one of claims 1 to 4, characterized in that it comprises a level detection device mounted to said container (1) to detect the level of the liquid inside said container (1).
6. A method for controlling a plant for the preparation of urea solution according to any one of claims 1 to 5, characterized in that it comprises:
receiving a trigger signal;
responding to the trigger signal, controlling the ultrasonic cleaning device (2) to start;
controlling a stirring device (3) to start under the condition that the running time of the ultrasonic cleaning device (2) reaches a first preset time;
and controlling the blow-down valve (6) to be opened under the condition that the running time of the stirring device (3) reaches a second preset time.
7. The control method of a urea solution preparation plant according to claim 6, characterized in that it further comprises, in the case where the stirring device (3) is operated for a second predetermined period of time:
and controlling the ultrasonic cleaning device (2) to stop working.
8. The control method of a urea solution preparation plant according to claim 6, characterized in that it further comprises, after receiving a trigger signal, before controlling the ultrasonic cleaning device (2) to start up in response to said trigger signal:
controlling the water inlet valve (4) and the pump (5) to be opened to replenish water into the container (1);
detecting the liquid level of the container (1), and controlling the water inlet valve (4) and the pump (5) to be closed when the liquid level in the container (1) reaches a first preset height.
9. The control method of a urea solution preparation plant according to claim 6, characterized in that it further comprises, after controlling the opening of the blowdown valve (6):
detecting the liquid level in the container (1) in real time;
-controlling the blow-off valve (6) to close in case the liquid in the container (1) is emptied;
controlling the water inlet valve (4) and the pump (5) to be opened to replenish water into the container (1);
controlling the water inlet valve (4) and the pump (5) to be closed and controlling the blow-down valve (6) to be opened when the liquid level in the container (1) reaches a second preset height.
10. The method for controlling a plant for the preparation of urea solution according to claim 9, characterized in that after controlling the inlet valve (4) and the pump (5) to be closed and the blowdown valve (6) to be open, the method for controlling a plant for the preparation of urea solution further comprises:
-controlling the blow-off valve (6) to close in case the liquid in the container (1) is emptied;
the stirring device (3) is closed.
11. A control device of a urea solution production apparatus, comprising:
a receiving unit for receiving a trigger signal;
the first control unit is used for responding to the trigger signal and controlling the ultrasonic cleaning device (2) to start;
the second control unit is used for controlling the stirring device (3) to start under the condition that the running time of the ultrasonic cleaning device (2) reaches a first preset time;
and the third control unit is used for controlling the blow-down valve (6) to be opened under the condition that the running time of the stirring device (3) reaches a second preset time.
12. A processor, characterized in that it is configured to run a program, wherein the program is configured to execute the method of controlling a plant for the preparation of urea solution according to any one of claims 6 to 10 when running.
13. A non-volatile storage medium, characterized in that it comprises a stored program, wherein the program, when executed, controls a plant in which the non-volatile storage medium is located to perform the method of controlling a plant for the preparation of urea solution according to any one of claims 6 to 10.
14. A urea treatment system, comprising:
a urea solution production plant according to any one of claims 1 to 5;
a processor in communication with the urea solution production plant, the processor being configured to run a program, wherein the program when run performs the method of controlling a urea solution production plant according to any one of claims 6 to 10.
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| CN202110179405.6A CN112999917A (en) | 2021-02-09 | 2021-02-09 | Urea solution preparation equipment and control method and control device thereof |
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| CN202110179405.6A CN112999917A (en) | 2021-02-09 | 2021-02-09 | Urea solution preparation equipment and control method and control device thereof |
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| US20200270204A1 (en) * | 2019-02-27 | 2020-08-27 | Kace | Urea water manufacturing device and thereof method |
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