CN114486360A - Multifunctional sampling device and control method thereof - Google Patents
Multifunctional sampling device and control method thereof Download PDFInfo
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- CN114486360A CN114486360A CN202210087297.4A CN202210087297A CN114486360A CN 114486360 A CN114486360 A CN 114486360A CN 202210087297 A CN202210087297 A CN 202210087297A CN 114486360 A CN114486360 A CN 114486360A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Abstract
The invention discloses a multifunctional sampling device which comprises a sampling valve, a liquid outlet pipe and a driving device. The sampling valve comprises a liquid inlet and a liquid outlet; the liquid outlet pipe comprises a first pipe section and a second pipe section, an inlet of the first pipe section is communicated with a liquid outlet of the sampling valve, and one end of the second pipe section is a liquid outlet of the liquid outlet pipe; the driving device is arranged between the first pipe section and the second pipe section, and the driving device drives the second pipe section to move relative to the first pipe section. According to the invention, the driving device is added on the sampling device, so that when liquid sampling is carried out, the intellectualization of sampling can be realized, the labor intensity is reduced, the sampling accuracy of the sampling device is improved, the driving device is arranged, the pollution to the production field environment or the damage to workers is prevented, the sampling is convenient, the intellectualization of the device and the diversification of functions are realized, the structure is simple, and the cost is low.
Description
Technical Field
The invention belongs to the field of liquid sampling, and particularly relates to a multifunctional sampling device and a control method thereof.
Background
In the process of daily production and life, a plurality of sampling devices have single functions and cannot be replaced, when other functions of liquid are detected, a plurality of devices are often needed, resource waste is easily caused, for example, a plurality of similar fluid cut-off devices such as valves and the like cause small amount of leakage of fluid due to aging of sealing surfaces, blowing erosion and the like, various influence factors exist when the cut-off devices stop systems or are isolated for repair or replacement, for example, the systems cannot be isolated, the system isolation economy is poor, at the moment, a method for connecting and draining leaked fluid can be adopted, but the production site pollution is easily caused in actual operation, if the fluid is a dangerous product or an environment pollution medium, the method for connecting and draining the leaked fluid is greatly limited, the existing under-pressure leakage blocking technology basically adopts an injection and punching mode to achieve complete leakage blocking, the fluid cut-off devices such as the valves and the like are blocked once, and the reuse and repair are impossible, and needs professional leaking stoppage personnel with pressure to operate, so that the risk is high and the cost is high.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multifunctional sampling device and a control method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: there is provided a multi-functional sampling device, comprising,
the sampling valve comprises a liquid inlet and a liquid outlet;
the liquid outlet pipe comprises a first pipe section and a second pipe section, the first pipe section is communicated with the liquid outlet of the sampling valve, and one end of the second pipe section is a liquid outlet of the liquid outlet pipe;
and the driving device is arranged between the first pipe section and the second pipe section and is used for driving the second pipe section to move relative to the first pipe section.
According to the invention, the driving device is arranged on the sampling device, so that when liquid is sampled, the intellectualization of sampling can be realized, the labor intensity is reduced, and the sampling accuracy of the sampling device is improved.
Furthermore, one end of the driving device is arranged on the first pipe section, and the other end of the driving device is movably connected with the second pipe section;
the driving device comprises a supporting piece and a connecting rod, the supporting piece is fixed on the first pipe section, the connecting rod is movably connected with the supporting piece, and the connecting rod is movably connected with the second pipe section;
preferably, the pipe joint further comprises an action mechanism for driving the connecting rod to control the second pipe section to move.
Furthermore, the liquid outlet pipe also comprises a flexible pipe which is arranged between the first pipe section and the second pipe section and is used for bending and stretching under the driving of the second pipe section.
Furthermore, a first electromagnetic valve is arranged on the first pipe section, and a second electromagnetic valve is arranged on the second pipe section;
the first electromagnetic valve and the second electromagnetic valve are used for controlling the liquid outlet pipe to be communicated or closed.
The sampling valve further comprises a plurality of first pipe sections, wherein the plurality of first pipe sections are provided with a plurality of first functional modules and are connected between the sampling valve and the flexible pipe in a replaceable mode;
a plurality of second tube segments having a plurality of second functional modules interchangeably communicating with the outlet of the flexible tube.
Furthermore, the second pipe section is provided with an image collector which is arranged on the peripheral wall of the second pipe section and is used for acquiring the position of the liquid bottle/the sampling bottle.
The second pipe section is connected with the driving device and the image collector respectively, and is used for receiving the position of the image collector for identifying the liquid discharging bottle/the sampling bottle, controlling the second pipe section to move above the liquid discharging bottle/the sampling bottle and carrying out flushing/sampling.
Preferably, the automatic sampling device further comprises an automatic sampling tray, the automatic sampling tray is provided with a mark and a placing position of the liquid discharging bottle/the sampling bottle corresponding to the mark, and the image collector identifies the mark and acquires the position of the liquid discharging bottle/the sampling bottle.
A control method of a multifunctional sampling device comprises the following steps,
s1, receiving a sampling instruction;
s2, controlling the second pipe section of the liquid outlet pipe to move to the preset position of the liquid discharging bottle/sampling bottle;
and S3, controlling the liquid outlet pipe to discharge liquid.
Further, the step of S2 includes the following steps,
s21, controlling the image collector on the second pipe section to obtain the position of the liquid bottle/sampling bottle;
and S22, controlling the driving device to enable the outlet of the second pipe section to be above the opening of the liquid discharging bottle/the sampling bottle.
Further, in the step S3, the method further includes the following steps,
s31, controlling the liquid outlet pipe to discharge liquid;
s32, obtaining the liquid outlet time of the liquid outlet pipe;
s33, judging whether the liquid outlet time of the liquid outlet pipe is more than or equal to the preset time, if not, continuing to execute S31;
preferably, in the step S33, if yes, the liquid discharge is stopped, the driving device is controlled to return to the preset original position, and the sampling completion information is sent.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
(1) According to the intelligent sampling device, the first pipe section and the second pipe section are arranged in the sampling device, the driving device is added between the first pipe section and the second pipe section, so that the intelligentization of sampling can be realized, the labor intensity is reduced, the sampling accuracy of the sampling device is improved, the pollution to the production field environment or the damage to workers can be prevented by arranging the driving device, the sampling is convenient, the intelligent sampling device is connected with the control module, and the intelligentization and the diversification of functions of the device are realized.
(2) According to the invention, the plurality of first pipe sections and the plurality of second pipe sections are arranged on the sampling device, so that the multifunctional free combination is realized, the real-time replacement can be carried out according to the actual conditions of a production field, the practicability of the sampling device is improved, the disassembly is convenient, the structure is simple, and the cost is low.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural diagram of a multifunctional sampling device of the present invention;
FIG. 2 is a schematic view of an automatic sampling tray of the present invention;
FIG. 3 is a flow chart of a method for controlling a multi-function sampling device according to the present invention;
FIG. 4 is a flow chart of a method for controlling a multi-function sampling device according to the present invention;
FIG. 5 is a schematic view of a plurality of first and second pipe sections of the present invention;
FIG. 6 is a schematic view of a plurality of first and second pipe sections of the present invention;
FIG. 7 is a schematic view of a plurality of first tube segments and second tube segments in accordance with the present invention.
In the figure: 1. a sampling valve; 2. a drive device; 21. a support member; 22. a connecting rod; 3. a liquid outlet pipe; 31. a first tube section; 32. a second tube section; 33. a flexible tube; 4. a first solenoid valve; 5. a second solenoid valve; 6. an automatic sampling tray; 61. a first mark; 62. a second mark; 63. placing a mark on the liquid discharge bottle; 64. placing a mark on the sampling bottle; 7. an image collector; 101. a manual valve; 102. a Tesla valve; 103. a pressure sensor; 104. a dosing/mixing device; 105. a temperature sensor; 106. a flow sensor; 107. a liquid storage tank; 108. an electric valve.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 7, the multifunctional sampling device of the present invention comprises a sampling valve 1, a liquid outlet pipe 3, and a driving device 2.
The sampling valve 1 comprises a liquid inlet and a liquid outlet.
The liquid outlet pipe 3 comprises a first pipe section 31 and a second pipe section 31, wherein an inlet of the first pipe section 31 is communicated with a liquid outlet of the sampling valve 1, and one end of the second pipe section is a liquid outlet of the liquid outlet pipe.
The driving device 2 is arranged between the first pipe section 31 and the second pipe section 32, and the driving device 2 drives the second pipe section 32 to move relative to the first pipe section 31.
According to the invention, the liquid outlet pipe 3 is divided into the first pipe section 31 and the second pipe section 32, the driving device 2 is arranged between the first pipe section 31 and the second pipe section 32, and the second pipe section 32 is driven to move relative to the first pipe section 31, so that the intelligentization of sampling is realized, the labor intensity is reduced, the sampling accuracy of the sampling device is improved, the pollution to the production site environment or the damage to workers is prevented by arranging the driving device 2, the sampling is convenient, and the intelligentization and the diversification of functions of the device are realized.
Further, one end of the driving device 2 is disposed on the first pipe segment 31, and the other end of the driving device 2 is movably connected to the second pipe segment 32.
The driving device 2 comprises a supporting member 21 and a connecting rod 22, wherein the supporting member 21 is fixed on the first pipe section 31, the connecting rod 22 is movably connected with the supporting member 21, and the connecting rod 22 is movably connected with the second pipe section 32.
Preferably, an actuating mechanism (e.g., an electric motor, a hydraulic cylinder) is further included for driving the linkage 22 to control the movement of the second pipe segment 32.
By fixing the supporting member 21 on the first pipe section 31, the connecting rod 22 can extend or move relative to the supporting member 21, and the connecting rod 22 is movably connected with the second pipe section 32, so that the driving device 2 can drive the second pipe section 32 to extend, rotate or move through controlling the connecting rod 22, automation and intellectualization of the sampling device are realized, and user experience is increased.
Specifically, as shown in fig. 1, one end of the driving device 2 is installed on the first pipe section 31, and the other end of the driving device 2 is movably connected with the second pipe section 32, so that the driving device 2 can control the second pipe section 32 to move, the sampling intelligence is realized, the sampling efficiency is increased, and the sampling accuracy is improved.
Further, the liquid outlet pipe 3 further includes a flexible pipe 33 disposed between the first pipe section 31 and the second pipe section 32, and configured to bend and stretch under the driving of the second pipe section 32.
According to the invention, the flexible pipe 33 is arranged between the first pipe section 31 and the second pipe section 32, so that the driving device 2 can conveniently move the second pipe section 32, the direct communication between the first pipe section 31 and the second pipe section 32 is avoided, the driving device 2 is difficult to move and inconvenient to change direction or contract, the sensitivity of the sampling device is improved, and the damage of the sampling device is prevented.
The flexible tube 33 comprises a self-fixing metal hose.
The self-fixing metal hose can be made into a corresponding U-shaped or other shapes according to the field conditions, and has strong pertinence; during sampling, the self-ancient metal hose can move along with the driving device 2, so that a sampling medium can directly flow out, and sampling is facilitated; after the sample is ended, from solid formula metal collapsible tube can be according to self characteristic directly will adjust to the top of sampling valve 1 under drive arrangement 2's drive, can prevent that intraductal remaining medium from flowing, increase user's experience.
Further, a first solenoid valve 4 is arranged on the first pipe section 31, and a second solenoid valve 5 is arranged on the second pipe section 32.
The first electromagnetic valve 4 and the second electromagnetic valve 5 are used for controlling the liquid outlet pipe 3 to be communicated or closed.
According to the invention, the first electromagnetic valve 4 and the second electromagnetic valve 5 are arranged, so that the sampling device is automated and intelligentized, when the sampling device is used, the first electromagnetic valve 4 and the second electromagnetic valve 5 can be controlled to be opened only after the outlet end of the second pipe section 32 is opposite to the opening of the sampling bottle/liquid discharging bottle, so that sampling operation is carried out, the harm to experimenters during harmful sampling is avoided, and the use effect and the use efficiency are reduced.
Further, a plurality of first pipe segments 31 are included, wherein the plurality of first pipe segments 31 are provided with a plurality of first functional modules and are connected between the sampling valve 1 and the flexible pipe 33 in an replaceable manner;
a plurality of second pipe segments 32, said plurality of second pipe segments 32 having a plurality of second functional modules, alternatively in communication with the outlet of said flexible pipe 33.
According to the invention, by arranging the plurality of first pipe sections 31 and the plurality of second pipe sections 32, when liquid sampling is carried out, various functions can be freely combined, real-time replacement can be carried out according to the actual conditions of a production field, the practicability of the sampling device is improved, the disassembly is convenient, the structure is simple, and the cost is low.
The first solenoid valve 4 and the second solenoid valve 5 can also be used as connecting devices, so that the first pipe section 31 and the second pipe section 32 can be replaced by the first solenoid valve 4 and the second solenoid valve 5 respectively, and the convenience of the sampling device is improved.
As shown in fig. 5 to 6, the plurality of first functional modules and the plurality of second functional modules are not limited to the detection device and the control device such as the liquid storage tank 107 and the chemical adding/mixing device 104.
When the sampling device is used, different functional modules are replaced and installed between the first pipe section 31 and the second pipe section 32 and between the first pipe section 31 and the second pipe section 32 which are matched with each other according to different situations on site, so that the sampling device can meet one or more functions, the diversity of the sampling device is increased, the using effect of the sampling device is improved, and the user experience is improved.
Further, the second tube section 32 is provided with an image collector 7, which is arranged on the outer peripheral wall of the outlet end of the second tube section 32 and is used for acquiring the position of the liquid bottle/sampling bottle.
According to the invention, the image collector 7 is arranged on the second pipe section 32, so that the position of the liquid bottle/sampling bottle can be conveniently obtained, the accurate control of the sampling device during working is improved, and the second pipe section 32 and the liquid discharging bottle/sampling bottle are prevented from being mistakenly positioned to cause harm or pollution during sampling.
Further, the device also comprises a control module which is respectively connected with the driving device 2 and the image collector 7 and used for receiving the position of the image collector 7 for identifying the liquid discharging bottle/the sampling bottle and controlling the second pipe section 32 to move to the upper part of the liquid discharging bottle/the sampling bottle for washing/sampling.
Preferably, the automatic sampling device further comprises an automatic sampling tray 6, the automatic sampling tray 6 is provided with a mark and a placing position of the liquid discharging bottle/the sampling bottle corresponding to the mark, and the image collector 7 identifies the mark and acquires the position of the liquid discharging bottle/the sampling bottle.
As shown in fig. 1 to 2, the control module is connected with the driving device 2 and the image collector 7 to control the second pipe section 32 to move, the automatic sampling tray 6 is provided with identification marks and a place for placing a sampling bottle/a liquid discharging bottle, the image collector 7 is arranged on the second pipe section 32 to control the second pipe section 32 to move by identifying corresponding marks when the sampling device is used, so that the outlet of the second pipe section 32 is ensured to be opposite to the sampling bottle/the liquid discharging bottle, the sampling accuracy of the sampling device is improved, the sampling precision is increased, and the sampling efficiency is improved.
The marks comprise a first mark 61 and a second mark 62, and the first mark 61 and the second mark 62 correspond to a placing mark 63 of the liquid discharging bottle and a placing mark 64 of the sampling bottle respectively.
As shown in fig. 3 to 4, the present invention also discloses a control method, comprising the following steps,
s1, receiving a sampling instruction;
s2, controlling the second pipe section of the liquid outlet pipe 3 to move to the preset position of the liquid discharging bottle/sampling bottle;
and S3, controlling the liquid outlet pipe to discharge liquid.
According to the invention, after a sampling instruction is received, the second pipe section 32 of the liquid outlet pipe 3 is controlled to move to the preset position for liquid outlet, so that the automatic and intelligent control of the sampling device is realized, and when sampling is carried out, liquid outlet is accurate, so that mixing is prevented, experimental results or damage is prevented, the safety of the sampling device is improved, and the sampling accuracy of the sampling device is increased.
Further, the step of S2 includes the following steps,
s21, controlling the image collector 7 on the second pipe section 32 to obtain the position of the liquid bottle/sample bottle;
s22, the control driving device 2 drives the second pipe section 32 to move to the upper part of the opening of the tapping bottle/sampling bottle.
Further, in the step S3, the method further includes the following steps,
s31, controlling the liquid outlet pipe 3 to discharge liquid;
s32, obtaining the liquid outlet time of the liquid outlet pipe 3;
and S33, judging whether the liquid outlet time of the liquid outlet pipe 3 is more than or equal to the preset time, if not, continuing to execute S31.
In step S31, the liquid outlet pipe 3 is controlled to discharge liquid, that is, the first electromagnetic valve 4 and the second electromagnetic valve 5 are controlled to be opened.
According to the invention, the position of the liquid discharging bottle/sampling bottle is obtained by controlling the image collector 7, then the second pipe section 32 is controlled to move to the position above the opening of the liquid discharging bottle/sampling bottle, the liquid discharging of the liquid discharging pipe 3 is controlled at the same time, the liquid discharging time of the liquid discharging pipe 3 is finally obtained, whether the liquid discharging time of the liquid discharging pipe 3 is more than or equal to the preset time is judged, if not, S31 is continuously executed, the labor intensity is reduced, the control precision of the sampling device is improved, and pollution or harm caused by incomplete sampling are prevented.
Specifically, as shown in fig. 3 to 4, the driving device 2 is controlled to move to the first mark 61 by recognizing the first mark 61, so that the outlet of the second pipe section 32 is opposite to the opening of the liquid discharge bottle, then the first solenoid valve 4 and the second solenoid valve 5 are controlled to be opened, the liquid discharge pipe 3 is cleaned, the opening time of the first solenoid valve 4 and the opening time of the second solenoid valve 5 are detected, whether the opening time of the first solenoid valve 4 and the opening time of the second solenoid valve 5 are greater than or equal to a preset time is judged, when the preset time is reached, it is indicated that the flushing is finished, the first solenoid valve 4 and the second solenoid valve 5 are controlled to be closed, the closing time of the first solenoid valve 4 and the second solenoid valve 5 is detected again, and compared with a set time parameter, and when the closing time is greater than or equal to the preset time, the sampling operation can be performed.
The opening time of the first electromagnetic valve 4 and the second electromagnetic valve 5 is 5-15 s.
Preferably, the opening time of the first electromagnetic valve 4 and the second electromagnetic valve 5 is 10 s.
The preset time for closing the first electromagnetic valve 4 and the second electromagnetic valve 5 is 10-25 s.
Preferably, the time for closing the first and second electromagnetic valves 5 and 5 is 20 s.
Specifically, sampling device need use the liquid of waiting to take a sample before the sample to wash drain pipe 3, prevents that the sample result is inaccurate, consequently, need set for when taking a sample and wash the time. Because the sample liquid can be remained on the liquid outlet pipe 3 after the flushing, the flushed pipe section is kept still for a certain time, the remained liquid is ensured to fall completely, and the sampling accuracy is improved.
Specifically, after the liquid outlet pipe 3 is flushed, the control method of the sampling process is the same as the flushing control method, the second mark 62 is firstly identified, the driving device 2 is controlled to drive the outlet of the second pipe section 32 to be opposite to the opening of the sampling bottle, the first electromagnetic valve 4 and the second electromagnetic valve 5 are controlled to be opened for 10s, then the time for closing the first electromagnetic valve 4 and the second electromagnetic valve 5 is 20s, and after the preset time is reached, the sampling is finished.
Preferably, in the step S33, if yes, the liquid discharge is stopped, the driving device is controlled to return to the preset original position, and the sampling completion information is sent.
After finishing sampling, the driving device 2 is controlled to return to the original position, and a signal for completing sampling is sent to an experimenter, so that the labor intensity is reduced, the use efficiency is improved, the automation and the intelligence of the sampling device are increased, and the experiment efficiency is improved.
According to the invention, the driving device 2 is added between the first pipe section 31 and the second pipe section 32, so that the automation and the intellectualization of the sampling device are realized, the plurality of replaceable first pipe sections 31 and second pipe sections 32 are arranged, the replacement can be carried out according to different requirements on site, the structure is simple, convenient and quick, the diversification of the sampling device is realized, the cost is reduced, the flexible pipe 33 is added between the first pipe section 31 and the second pipe section 32, the convenience of control is increased, the automatic sampling tray 6 is arranged, the image collector 7 is arranged on the second pipe section 32, the mark on the automatic sampling tray 3 is convenient to identify, the accuracy of the sampling device is improved, and the user experience is increased.
The control system of the invention adopts PLC or mini-single machine control.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. A multifunctional sampling device is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the sampling valve comprises a liquid inlet and a liquid outlet;
the liquid outlet pipe comprises a first pipe section and a second pipe section, an inlet of the first pipe section is communicated with a liquid outlet of the sampling valve, and one end of the second pipe section is a liquid outlet of the liquid outlet pipe;
and the driving device is arranged between the first pipe section and the second pipe section and is used for driving the second pipe section to move relative to the first pipe section.
2. A multi-functional sampling device according to claim 1, wherein: one end of the driving device is arranged on the first pipe section, and the other end of the driving device is movably connected with the second pipe section;
the driving device comprises a supporting piece and a connecting rod, the supporting piece is fixed on the first pipe section, the connecting rod is movably connected with the supporting piece, and the connecting rod is movably connected with the second pipe section;
preferably, the pipe joint further comprises an actuating mechanism for driving the connecting rod to control the movement of the second pipe section.
3. A multi-functional sampling device according to claim 2, wherein: the liquid outlet pipe also comprises a flexible pipe which is arranged between the first pipe section and the second pipe section and is used for bending and stretching under the driving of the second pipe section.
4. A multi-functional sampling device according to claim 3, wherein: the first pipe section is provided with a first electromagnetic valve, and the second pipe section is provided with a second electromagnetic valve;
the first electromagnetic valve and the second electromagnetic valve are used for controlling the liquid outlet pipe to be communicated or closed.
5. A multi-functional sampling device according to claim 3, wherein: the system also comprises a plurality of first pipe sections, wherein the plurality of first pipe sections are provided with a plurality of first functional modules and are connected between the sampling valve and the flexible pipe in an replaceable way;
a plurality of second tube segments having a plurality of second functional modules interchangeably communicating with the outlet of the flexible tube.
6. A multi-functional sampling device according to any of claims 1-5, wherein: the second pipe section is provided with an image collector which is arranged on the peripheral wall of the second pipe section and is used for acquiring the position of the liquid bottle/the sampling bottle.
7. A multi-functional sampling device according to claim 6, characterized in that: the control module is respectively connected with the driving device and the image collector and is used for receiving the position of the image collector for identifying the liquid discharging bottle/sampling bottle, controlling the second pipe section to move above the liquid discharging bottle/sampling bottle and carrying out flushing/sampling;
preferably, the automatic sampling device further comprises an automatic sampling tray, the automatic sampling tray is provided with a mark and a placing mark of the liquid discharging bottle/the sampling bottle corresponding to the mark, and the image collector identifies the mark and acquires the position of the liquid discharging bottle/the sampling bottle.
8. A control method of a multifunctional sampling device is characterized in that: a multifunctional sampling device according to any one of claims 1-7, comprising the steps of,
s1, receiving a sampling instruction;
s2, controlling the second pipe section of the liquid outlet pipe to move to the preset position of the liquid discharging bottle/sampling bottle;
and S3, controlling the liquid outlet pipe to discharge liquid.
9. The control method according to claim 6, characterized in that: the step of S2 further includes the following steps,
s21, controlling the image collector on the second pipe section to obtain the position of the liquid bottle/sampling bottle;
and S22, controlling the driving device to drive the second pipe section to move above the opening of the liquid discharging bottle/sampling bottle.
10. The control method according to claim 8, characterized in that: in the step S3, the method further includes the steps of,
s31, controlling the liquid outlet pipe to discharge liquid;
s32, obtaining the liquid outlet time of the liquid outlet pipe;
s33, judging whether the liquid outlet time of the liquid outlet pipe is more than or equal to the preset time, if not, continuing to execute S31;
preferably, in the step S33, if yes, the liquid discharge is stopped, the driving device is controlled to return to the preset original position, and the sampling completion information is sent.
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| CN213544123U (en) * | 2020-11-11 | 2021-06-25 | 北京石油化工学院 | Automatic sampling equipment of dangerization article liquid |
| CN215414528U (en) * | 2021-07-19 | 2022-01-04 | 邢台职业技术学院 | Sewage sampling device capable of being placed in pipeline |
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