CN216954741U

CN216954741U - Metering tank of liquid level alarm system with control pump opens and stops

Info

Publication number: CN216954741U
Application number: CN202220644164.8U
Authority: CN
Inventors: 张纪国; 张纪平; 唐文洲
Original assignee: Xintai Rijin Chemical Technology Co ltd
Current assignee: Xintai Rijin Chemical Technology Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-12
Anticipated expiration: 2032-03-23

Abstract

The utility model provides a metering tank with a liquid level alarm system for controlling the start and stop of a pump, which comprises a detection assembly, wherein the detection assembly is connected with the metering tank, an inner cavity of the metering tank is communicated with an opening, the opening is connected with a power pump through a connecting pipeline, the detection assembly is connected with a control assembly, the control assembly is respectively connected with an alarm assembly and a start-stop assembly, the start-stop assembly is connected with the power pump, and the metering tank is provided with the detection assembly, the alarm assembly and the start-stop assembly, so that the problems that the first mode is manual visual inspection, the method needs to be close to the metering tank, the measurement is inaccurate and dangerous conditions easily occur are solved, the second method adopts non-contact radar measurement, the method outputs measurement data to a central control room to display the liquid level through a 4-20mA signal and informs a canning worker through an intercom mode, but under the condition that the canning speed is high, the talkback notification causes a delay of a certain time, which in turn causes any technical problem in the case of tank overflow.

Description

Metering tank of liquid level alarm system with control pump opens and stops

Technical Field

The utility model relates to the technical field of material level measurement, in particular to a metering tank with a liquid level alarm system for controlling the start and stop of a pump.

Background

At present, when a metering tank is filled, the liquid level in the tank is measured in two ways, the first way is manual visual measurement, the method needs to be close to the metering tank, the measurement is inaccurate, and dangerous conditions are easy to occur. The second method is to adopt non-contact radar measurement, the method outputs the measurement data to a central control room for displaying the liquid level in a 4-20mA signal, and informs the canning personnel in an intercom mode, but under the condition of higher canning speed, the intercom notification can cause a certain time delay, thereby causing the situation of tank overflow.

SUMMERY OF THE UTILITY MODEL

The utility model provides a metering tank with a liquid level alarm system for controlling the start and stop of a pump, which is used for solving any technical problem that the problem 1 is that manual visual measurement is adopted in the first mode, the method needs to be close to the metering tank, the measurement is inaccurate and dangerous conditions and problems 2 are easy to occur, the second method adopts non-contact radar measurement, the method outputs measurement data to a central control room for displaying the liquid level through a 4-20mA signal, and informs a canning worker through a talkback mode, but under the condition of higher canning speed, the talkback notification can cause a certain time delay, and further causes tank overflow.

The utility model provides a metering tank with liquid level alarm system that control pump opened and stops, includes detection module, detection module and metering tank are connected, the inner chamber intercommunication of metering tank has the opening, the opening is connected with the power pump through connecting tube, detection module is connected with control assembly, control assembly is connected with alarm module respectively and opens and stop the subassembly, open stop the subassembly with the power pump is connected.

Preferably, the alarm component is an alarm, the control component is a PLC control and I/O module, and the alarm is connected with the detection component through the PLC control and I/O module.

Preferably, the start-stop assembly comprises a start-stop switch and a start button, the start-stop switch is connected with the power pump and used for controlling the start and stop of the power pump, and the start-stop switch is connected with the start button through a PLC control and I/O module.

Preferably, the top fixed mounting of metering tank has the pump of admitting air, the pump of admitting air passes through control circuit and is connected with control switch, control switch is used for controlling the work of the pump of admitting air, the pump intercommunication of admitting air has the gas circuit, the gas circuit is connected with the pressure relief valve, the pressure relief valve with open and stop the subassembly and connect.

Preferably, the detection component comprises a floating head, the floating head is arranged in an inner cavity of the metering tank, the floating head is fixedly connected with the lower end of a connecting rod, one end of the connecting rod, which is far away from the floating head, penetrates through the lower end of the detection shell, enters into a sliding cavity on the lower side inside the detection shell and is fixedly connected with a sliding plate, the sliding plate is slidably connected with the sliding cavity, and the detection shell penetrates through and is fixedly arranged at the upper end of the metering tank.

Preferably, the detection subassembly still includes the working chamber, the working chamber sets up and is detecting the inside upside of shell, the inside upper end of working chamber is fixed to be equipped with control switch, and slides in the working chamber and be equipped with the sliding block, the sliding block is close to the fixed contact that is equipped with of control switch's one end, the sliding block is kept away from the one end of contact and is gone into the connecting rod fixed connection in the working chamber with the upper end that runs through the sliding chamber.

Preferably, the opening is connected with the plugging assembly, the plugging assembly includes a plugging shell, it is equipped with intercommunication chamber one to link up on the plugging shell, the one end intercommunication in intercommunication chamber one has the air inlet, the air inlet passes through the gas circuit with the pump that admits air is connected, intercommunication chamber one is provided with the one end fixedly connected with gasbag of air inlet, and gasbag and air inlet intercommunication, one side that the air inlet was kept away from to the gasbag is equipped with magnetic path one, magnetic path one corresponds the setting with magnetic path two, and magnetic path two sets up the one end that the air inlet was kept away from to intercommunication chamber one, it is equipped with the shutoff board to rotate in the intercommunication chamber one, the shutoff board is kept away from one side of air inlet is equipped with the flexure strip, and flexure strip lower extreme and a intercommunication chamber diapire fixed connection.

Preferably, the plugging shell is provided with a connecting portion, a sealing ring is arranged on the connecting portion, the outer wall of the connecting portion is connected with the inner wall of the opening, a communicating cavity II is arranged in the connecting portion in a penetrating mode, and the communicating cavity I, the communicating cavity II and the opening are sequentially communicated.

Preferably, the power pump 2 is communicated with a pipeline 201, and the pipeline 201 is communicated with the first communication cavity 502.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a detecting assembly according to the present invention;

FIG. 3 is a schematic view of the plugging assembly of the present invention.

In the figure: 1. a metering tank; 101. an inner cavity; 102. an opening; 2. a power pump; 201. connecting a pipeline; 3. Detecting the shell; 301. floating head; 302. a control circuit; 303. a sliding cavity; 304. a connecting rod; 305. a sliding plate; 306. a slider; 307. a contact head; 308. a working chamber; 309. a control switch; 4. an intake pump; 401. a gas circuit; 5. a plugging component; 501. plugging the shell; 502. a first communicating cavity; 503. a second magnetic block; 504. An air inlet; 505. an air bag; 506. a first magnetic block; 507. a plugging plate; 508. an elastic sheet; 6. a connecting portion; 601. a second communicating cavity; 602. and (5) sealing rings.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

The utility model provides the following examples

Example 1

The embodiment of the utility model provides a metering tank with a liquid level alarm system for controlling the start and stop of a pump, which comprises a detection assembly, wherein the detection assembly is connected with the metering tank 1, an inner cavity 101 of the metering tank 1 is communicated with an opening 102, the opening 102 is connected with a power pump 2 through a connecting pipeline 201, the detection assembly is connected with a control assembly, the control assembly is respectively connected with an alarm assembly and a start and stop assembly, and the start and stop assembly is connected with the power pump 2;

a discharge hole is formed in the lower part of the metering pump 1 and communicated with the inner cavity 101;

the alarm component is an alarm, the control component is a PLC control and I/O module, and the alarm is connected with the detection component through the PLC control and I/O module;

the start-stop assembly comprises a start-stop switch and a start button, the start-stop switch is connected with the power pump 2 and used for controlling the start and stop of the power pump 2, and the start-stop switch is connected with the start button through a PLC (programmable logic controller) control and I/O (input/output) module.

The beneficial effects of the above technical scheme are:

the technical problems that the measurement is inaccurate and dangerous situations are easy to occur due to the fact that a detection assembly is arranged and used for detecting the liquid level in the inner cavity 101 of the measuring tank 1 are solved, the first mode is manual visual measurement, the method needs to be close to the measuring tank, the measurement is inaccurate, after the liquid level reaches the preset liquid level, the PLC control and I/O module controls the alarm to alarm according to signals of the detection assembly, controls the start-stop switch to be closed, the start-stop switch is closed, the power pump 2 stops working, the stop working of the power pump 2 is directly controlled through automatic control of the detection assembly, the control assembly and the start-stop assembly, delay of stop working of the power pump 2 caused by untimely reaction or untimely prompt signals when the power pump 2 is manually closed is avoided, the problem that the non-contact radar measurement is adopted in the second mode, the method outputs measurement data to a central control room to display the liquid level through 4-20mA signals, and inform the canning personnel through the mode of talkbacking, nevertheless under the circumstances that the canning is fast, the intercommunication notice can cause the delay of certain time, and then lead to the technical problem in the condition emergence of tank overflow, the alarm is reported to the police and is reminded operating personnel and further confirms whether power pump 2 stops, avoid PLC control and IO module and start-stop switch between break down make power pump 2 not in time close, the reliability of closing power pump 2 has been improved, through setting up the start button, press the start button accessible controller control start-stop switch and open, make power pump 2 open work, thereby the work of convenient control power pump 2.

Example 2

On the basis of the embodiment 1, as shown in fig. 1-2, an air intake pump 4 is fixedly installed at the top of the metering tank 1, the air intake pump 4 is connected with a control switch 309 through a control circuit 302, the control switch 309 is used for controlling the operation of the air intake pump 4, the air intake pump 4 is communicated with an air passage 401, the air passage 401 is connected with a pressure relief valve, and the pressure relief valve is connected with the start-stop assembly;

the detection assembly comprises a floating head 301, the floating head 301 is arranged in the inner cavity 101 of the metering tank 1, the floating head 301 is fixedly connected with the lower end of a connecting rod 304, one end, far away from the floating head, of the connecting rod 304 penetrates through the lower end of the detection shell 3, enters a sliding cavity 303 passing through the lower side of the interior of the detection shell 3 and is fixedly connected with a sliding plate 305, the sliding plate 305 is slidably connected with the sliding cavity 303, and the detection shell 3 penetrates and is fixedly arranged at the upper end of the metering tank 1;

the detection assembly further comprises a working cavity 308, the working cavity 308 is arranged on the upper side inside the detection shell 3, the control switch 309 is fixedly arranged at the upper end inside the working cavity 308, a sliding block 306 is arranged in the working cavity 308 in a sliding mode, a contact head 307 is fixedly arranged at one end, close to the control switch 309, of the sliding block 306, and one end, far away from the contact head 307, of the sliding block 306 is fixedly connected with a connecting rod 304, penetrating through the upper end of the sliding cavity 303, of the sliding block into the working cavity 308.

The beneficial effects of the above technical scheme are:

by arranging the floating head 301, when the liquid level in the inner cavity 101 rises, the floating head 301 moves upwards along with the liquid level to drive the connecting rod 304 to move upwards, the connecting rod 304 drives the sliding plate 305 and the sliding block 306 to move, the connecting rod 304 moves to have a guiding function through the matching of the sliding cavity 303 and the sliding plate 305, so that the floating head 301 moves to have a guiding function, the phenomenon that the moving direction of the floating head 301 is unstable due to the liquid level shaking is avoided, when the liquid level in the inner cavity 101 reaches a preset liquid level, the floating head 301 drives the sliding plate 305 to move to the upper end of the sliding cavity 303, the connecting rod 304 cannot move, at the moment, the sliding block 306 drives the contact head 307 to be in contact with the control switch 307, the control switch 307 is opened, the PLC control and I/O module is electrically connected with the control switch 307 in the detection component, the PLC control and I/O module controls the start/stop switch to be closed according to an electric signal after the control switch 307 is opened, stopping the power pump 2 and the pressure relief valve, so that the power pump 2 cannot convey the feed liquid into the inner cavity 101, controlling the alarm to give an alarm, prompting an operator to further confirm whether the power pump 2 is stopped or not, and simultaneously controlling the air inlet pump 4 to work through the control circuit 302, closing the pressure relief valve to enable the plugging component 5 to work normally, plugging the opening 102 by the plugging component 5, so that the feed liquid conveyed by the power pump 2 cannot enter the inner cavity 101, and further ensuring that the liquid level in the metering tank 1 is a preset liquid level; if still need be to the feeding in the metering tank 1 after the alarm reports to the police, the steerable start button of operating personnel, if press the start button, can be so that power pump 2 and pressure relief valve simultaneous working for the air leakage in gas circuit 401, thereby make unable inflow air in the shutoff subassembly 5, shutoff subassembly 5 can not work, has guaranteed opening 102's noncongestion, makes the normal feeding of metering tank 1.

Example 3

Based on example 2, as shown in fig. 3, the opening 102 is connected with the blocking component 5, the plugging component 5 comprises a plugging shell 501, a first communication cavity 502 is arranged on the plugging shell 501 in a penetrating way, one end of the first communication cavity 502 is communicated with an air inlet 504, the air inlet 504 is connected with the air inlet pump 4 through the air passage 401, an air bag 505 is fixedly connected to one end of the first communication cavity 502 provided with an air inlet 504, the air bag 505 is communicated with the air inlet 504, one side of the air bag 505, which is far away from the air inlet 504, is provided with a first magnetic block 506, the first magnetic block 506 is arranged corresponding to the second magnetic block 503, and a second magnetic block 503 is arranged at one end of the first communication cavity 502 far away from the air inlet 504, a blocking plate 507 is rotatably arranged in the first communicating cavity 502, an elastic sheet 508 is arranged on one side of the blocking plate 507 far away from the air inlet 504, and the lower end of the elastic sheet 508 is fixedly connected with the bottom wall of the first communicating cavity 502;

the plugging shell 501 is provided with a connecting part 6, a sealing ring 602 is arranged on the connecting part 6, the outer wall of the connecting part 6 is connected with the inner wall of the opening 102, a communicating cavity II 601 is arranged in the connecting part 6 in a penetrating manner, and the communicating cavity I502, the communicating cavity II 601 and the opening 102 are sequentially communicated;

the power pump 2 is communicated with a pipeline 201, and the pipeline 201 is communicated with the first communication cavity 502.

The beneficial effects of the above technical scheme are:

after the connecting part 6 is connected with the opening 102, the first communication cavity 502, the second communication cavity 601 and the opening 102 are sequentially communicated, so that the pipeline 201 is communicated with the opening 102, after the power pump 2 starts to work, liquid enters the inner cavity 101 of the metering tank 1 through the pipeline 201, and the sealing performance in the plugging shell 501 and the opening 102 is improved by arranging the sealing ring 602; when the blocking assembly 5 is blocked, the air inlet pump 4 works, air is transmitted through the air passage 401, so that the air enters the air bag 505 through the air inlet 504, the air bag 505 is expanded, the blocking plate 507 is pressed to rotate in the expansion process of the air bag 505, the blocking plate 507 drives the elastic sheet 508 to deform, the magnetic block I506 on the air bag 505 is adsorbed by the magnetic block II 503 when the air bag 505 expands to a certain degree, the magnetic poles of the magnetic block I506 and the magnetic block II 503 are different, the air bag 506 blocks the communication cavity I502 when the magnetic block I and the magnetic block II 503 are adsorbed, meanwhile, the blocking plate 507 rotates to be horizontal and is in contact with the protruding part of the communication cavity I502, so that the blocking plate 507 blocks the communication cavity I502, the blocking effect on the communication cavity I502 is improved under the combined action of the air bag 506 and the blocking plate 507, and liquid cannot enter the inner cavity 101 of the metering tank 1 through the pipeline 201; open pressure relief valve when disappointing gasbag 506, make gasbag 506 air pass through air inlet 504, gas circuit 401 flows from pressure relief valve, make gasbag 506 lose air the back through setting up flexure strip 508, drive shutoff board 507 recovery normal position under the elastic reaction of flexure strip 508, the in-process that the shutoff board 507 recovered the normal position can drive the separation of magnetic path one 506 and magnetic path two 503 on the gasbag 505, make gasbag 505 recovery normal position, intercommunication chamber one 502 was in the communicating state this moment, can continue the feeding in to measuring tank 1.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a metering tank with liquid level alarm system that control pump opens and stops which characterized in that: including a detection component, detection component and metering tank (1) are connected, inner chamber (101) intercommunication of metering tank (1) has opening (102), opening (102) are connected with power pump (2) through connecting line (201), detection component is connected with control assembly, control assembly is connected with the warning subassembly respectively and opens and stop the subassembly, open and stop the subassembly with power pump (2) are connected.

2. A measuring tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 1, wherein: the alarm assembly is an alarm, the control assembly is a PLC control and I/O module, and the alarm is connected with the detection assembly through the PLC control and I/O module.

3. A measuring tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 2, characterized in that: the start-stop assembly comprises a start-stop switch and a start button, the start-stop switch is connected with the power pump (2) and used for controlling the start and stop of the power pump (2), and the start-stop switch is connected with the start button through a PLC (programmable logic controller) control and I/O (input/output) module.

4. A measuring tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 1, wherein: the top fixed mounting of metering tank (1) has air intake pump (4), air intake pump (4) are connected with control switch (309) through control circuit (302), control switch (309) are used for controlling the work of air intake pump (4), air intake pump (4) intercommunication has gas circuit (401), gas circuit (401) are connected with the pressure relief valve, the pressure relief valve with open and stop the subassembly and connect.

5. A metering tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 4, characterized in that: the detection assembly comprises a floating head (301), the floating head (301) is arranged in an inner cavity (101) of the metering tank (1), the floating head (301) is fixedly connected with the lower end of a connecting rod (304), the connecting rod (304) is far away from the lower end of the floating head (301) which penetrates through the lower end of the detection shell (3) enters a sliding cavity (303) on the lower side of the inner part of the detection shell (3) and is fixedly connected with a sliding plate (305), the sliding plate (305) is slidably connected with the sliding cavity (303), and the detection shell (3) penetrates through and is fixedly arranged at the upper end of the metering tank (1).

6. The metering tank with the liquid level alarm system for controlling the start and stop of the pump according to claim 5, wherein: the detection assembly further comprises a working cavity (308), the working cavity (308) is arranged on the upper side inside the detection shell (3), the upper end inside the working cavity (308) is fixedly provided with the control switch (309), a sliding block (306) is arranged in the working cavity (308) in a sliding mode, one end, close to the control switch (309), of the sliding block (306) is fixedly provided with a contact head (307), one end, far away from the contact head (307), of the sliding block (306 is fixedly connected with a connecting rod (304) which penetrates through the upper end of the sliding cavity (303) and enters the working cavity (308).

7. A metering tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 4, characterized in that: the opening (102) is connected with a blocking component (5), the blocking component (5) comprises a blocking shell (501), a first communication cavity (502) is arranged on the blocking shell (501) in a penetrating mode, one end of the first communication cavity (502) is communicated with an air inlet (504), the air inlet (504) is connected with the air inlet pump (4) through the air passage (401), one end, provided with the air inlet (504), of the first communication cavity (502) is fixedly connected with an air bag (505), the air bag (505) is communicated with the air inlet (504), one side, away from the air inlet (504), of the air bag (505) is provided with a first magnetic block (506), the first magnetic block (506) and a second magnetic block (503) are arranged correspondingly, the second magnetic block (503) is arranged at one end, away from the air inlet (504), of the first communication cavity (502) is rotatably provided with a blocking plate (507), and one side, away from the air inlet (504), of the blocking plate (507) is provided with an elastic sheet (508), and the lower end of the elastic sheet (508) is fixedly connected with the bottom wall of the first communicating cavity (502).

8. A metering tank with a liquid level alarm system for controlling the start and stop of a pump according to claim 7, characterized in that: the plugging shell (501) is provided with a connecting portion (6), a sealing ring (602) is arranged on the connecting portion (6), the outer wall of the connecting portion (6) is connected with the inner wall of the opening (102), a communicating cavity II (601) is arranged in the connecting portion (6) in a penetrating mode, and the communicating cavity I (502), the communicating cavity II (601) and the opening (102) are sequentially communicated.

9. The metering tank with the liquid level alarm system for controlling the start and stop of the pump according to claim 7, wherein: the power pump (2) is communicated with a pipeline (201), and the pipeline (201) is communicated with the first communication cavity (502).