CN218646402U

CN218646402U - Liquid level monitoring system based on array type platinum resistor liquid level sensor

Info

Publication number: CN218646402U
Application number: CN202222862971.XU
Authority: CN
Inventors: 江道松; 任委涛; 李县委; 程飞黄; 袁雪忠
Original assignee: Henan Faende Mining Co ltd
Current assignee: Henan Faende Mining Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-17
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a liquid level monitoring system based on an array type platinum resistor liquid level sensor, which comprises a water tank, wherein the water tank is provided with a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe is provided with a water supply pump and a solenoid valve; the water tank is vertically provided with a long pipe, one end of the long pipe is plugged and is in contact with the bottom of the water tank, the other end of the long pipe extends out of the water tank, and the long pipe is linearly arrayed with a plurality of platinum resistance liquid level sensors; the pipe wall of long tube is equipped with rather than the sleeve pipe of inside intercommunication, and sheathed tube inside is equipped with the retaining ring, and platinum resistance level sensor adaptation has the gland in the retaining ring, and the one end threaded connection that the long tube was kept away from to the sleeve pipe, and the gland is equipped with the clamping ring towards sheathed tube one side inside, is equipped with rubber seal between clamping ring and the retaining ring. The utility model discloses realize the detection and the intelligent water supply of water tank liquid level, can keep apart the joint and the liquid of platinum resistance level sensor and wire, realize reliable sealed to platinum resistance level sensor, the operation is changed in subsequent maintenance of being convenient for.

Description

Liquid level monitoring system based on array type platinum resistor liquid level sensor

Technical Field

The utility model relates to a liquid level monitoring technical field specifically is a liquid level monitoring system based on array platinum resistance level sensor.

Background

The principle of the array platinum resistance liquid level sensor is based on the fact that the physical parameters such as density, thermal conductivity and specific heat capacity of liquid and gas are obviously different, and therefore different thermal effects and thermal equilibrium states can be generated by heating/thermosensitive devices placed in the array platinum resistance liquid level sensor under the condition that the same working current is applied. Based on the heat conduction law and the phenomenon that the resistance value of the platinum resistor changes along with the temperature, the platinum resistor is used as a heat source and a temperature sensor at the same time, the medium where the platinum resistor is located is judged by monitoring the temperature and the resistance value difference of the platinum resistor under the condition of the same heating power of different platinum resistors, and then the liquid level position is judged; a plurality of platinum resistance liquid level sensor line type arrays of the liquid level detection system adopting the array type platinum resistance liquid level sensor are arranged in liquid, and the platinum resistance liquid level sensor is poor in sealing effect at the joint because the platinum resistance liquid level sensor is arranged in the liquid for a long time, is easy to corrode and damage, influences the use and needs to be frequently replaced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a liquid level monitoring system based on array platinum resistance level sensor, realize the detection and the intelligent water supply of water tank liquid level, can keep apart the joint and the liquid of platinum resistance level sensor and wire, realize reliably sealed to platinum resistance level sensor, the operation is changed in the subsequent maintenance of being convenient for, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a liquid level monitoring system based on an array type platinum resistor liquid level sensor comprises a water tank, wherein the water tank is provided with a liquid inlet pipe and a liquid outlet pipe, and a water supply pump and an electromagnetic valve are arranged on the liquid inlet pipe; the water tank is vertically provided with a long pipe, one end of the long pipe is plugged and is in contact with the bottom of the water tank, the other end of the long pipe extends out of the water tank, and a plurality of platinum resistor liquid level sensors are arranged in a linear array of the long pipe;

the pipe wall of long tube is equipped with rather than the sleeve pipe of inside intercommunication, and sheathed tube inside is equipped with the retaining ring, and platinum resistance level sensor adaptation has the gland in the retaining ring, and the one end threaded connection that the long tube was kept away from to the sleeve pipe has the gland, and the gland is equipped with the clamping ring towards sheathed tube one side inside, is equipped with rubber seal between clamping ring and the retaining ring.

Preferably, the water supply system further comprises an AD converter and a controller, the platinum resistor liquid level sensors are electrically connected with the AD converter through wires, the wires are located in the long pipe, analog signals of the collected platinum resistor liquid level sensors are converted into digital signals through the AD converter and fed back to the controller, and the controller controls the starting and stopping of the water supply pump and the electromagnetic valve.

Preferably, the diameter of the platinum resistance liquid level sensor is smaller than that of the sleeve, the pressing ring is adapted between the platinum resistance liquid level sensor and the sleeve, and when the pressing cover is in threaded connection with the sleeve, the pressing ring presses the rubber sealing ring and enables the rubber sealing ring to seal the outer wall of the platinum resistance liquid level sensor.

Preferably, the outer wall of the sleeve is provided with external threads, and the gland is provided with internal threads matched with the sleeve.

Preferably, the liquid outlet pipe is provided with a stop valve and a water outlet pump.

Compared with the prior art, the beneficial effects of the utility model are that: the working principle of the array type platinum resistance liquid level sensors is adopted to monitor the liquid level of the water tank, so that the detection and intelligent water supply of the liquid level of the water tank are realized, the platinum resistance liquid level sensors are installed by adopting the long pipe, the lead is positioned in the long pipe, the joints of the platinum resistance liquid level sensors and the lead can be isolated from liquid, and the influence of water immersion at the joints of the platinum resistance liquid level sensors on use is avoided; the platinum resistor liquid level sensor is sealed by the sleeve, the gland, the retainer ring and the rubber sealing ring, so that the platinum resistor liquid level sensor is reliable in sealing, convenient to operate and convenient for subsequent maintenance and replacement operation.

Drawings

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

fig. 2 is an enlarged schematic view of the local structure of the present invention.

In the figure: the device comprises a liquid inlet pipe 1, a water supply pump 2, an electromagnetic valve 3, a water tank 4, a liquid outlet pipe 5, a water outlet pump 6, a stop valve 7, a platinum resistor liquid level sensor 8, a long pipe 9, a lead wire 10, AD conversion 11, a controller 12, a sleeve pipe 13, a check ring 14, a gland 15, a pressing ring 16 and a rubber sealing ring 17.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings in the embodiments of the present invention, it should be understood that, if there are the indicated directions or positional relationships, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and in order to facilitate the description of the present invention, it is not necessary to indicate or imply that the indicated device or element must have a specific direction:

referring to fig. 1-2, the present invention provides a technical solution: a liquid level monitoring system based on an array type platinum resistor liquid level sensor comprises a water tank 4, wherein the water tank 4 is provided with a liquid inlet pipe 1 and a liquid outlet pipe 5, and the liquid inlet pipe 1 is provided with a water supply pump 2 and an electromagnetic valve 3; a long pipe 9 is vertically arranged on the water tank 4, one end of the long pipe 9 is plugged and is in contact with the bottom of the water tank 4, the other end of the long pipe 9 extends out of the water tank 4, and a plurality of platinum resistor liquid level sensors 8 are linearly arrayed on the long pipe 9;

the pipe wall of the long pipe 9 is provided with a sleeve 13 communicated with the inside of the long pipe 9, a check ring 14 is arranged inside the sleeve 13, the platinum resistance liquid level sensor 8 is adapted in the check ring 14, one end of the sleeve 13 far away from the long pipe 9 is in threaded connection with a gland 15, a pressing ring 16 is arranged inside one side of the gland 15 facing the sleeve 13, and a rubber sealing ring 17 is arranged between the pressing ring 16 and the check ring 14;

it can be understood that the diameter of the platinum resistance liquid level sensor 8 is smaller than that of the sleeve 13, the pressing ring 16 is fitted between the platinum resistance liquid level sensor 8 and the sleeve 13, and the pressing ring 16 presses the rubber sealing ring 17 and enables the rubber sealing ring to seal the outer wall of the platinum resistance liquid level sensor 8 when the pressing cover 15 is in threaded connection with the sleeve 13; the platinum resistance liquid level sensor 8 is sealed by the sleeve 13, the gland 15, the retainer ring 16 and the rubber seal ring 17, namely the rubber seal ring 17 is extruded by the gland 13 and the retainer ring 16, the rubber seal ring 17 is compressed and deformed, so that the outer wall of the platinum resistance liquid level sensor 8 is reliably sealed, the gland 15 is screwed, the platinum resistance liquid level sensor 8 can be sealed, the platinum resistance liquid level sensor is convenient to take out and install, the operation is convenient, and the subsequent maintenance and replacement operation is convenient;

further, the device also comprises an AD converter 11 and a controller 12, wherein the platinum resistance liquid level sensors 8 are electrically connected with the AD converter 11 through leads 10, the leads 10 are positioned in the long pipe 9, the AD converter 11 converts the collected analog signals of the platinum resistance liquid level sensors 8 into digital signals and feeds the digital signals back to the controller 12, and the controller 12 controls the start and stop of the water supply pump 2 and the electromagnetic valve 3; the working principle of the array type platinum resistor liquid level sensor is adopted to monitor the liquid level of the water tank 4, so that the detection of the liquid level of the water tank 4 and intelligent water supply are realized;

the platinum resistance liquid level sensors 8 are installed by adopting the long pipe 9, and the lead 10 is positioned in the long pipe 9, so that joints of the platinum resistance liquid level sensors 8 and the lead 10 can be isolated from liquid, and the influence of water immersion on the joints of the platinum resistance liquid level sensors 8 is avoided;

in addition, the outer wall of the sleeve 13 is provided with external threads, and the gland 15 is provided with internal threads matched with the sleeve 13; the liquid outlet pipe 5 is provided with a stop valve 7 and a water outlet pump 6.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.

Claims

1. The utility model provides a liquid level monitoring system based on array platinum resistance level sensor, includes water tank (4), its characterized in that: the water tank (4) is provided with a liquid inlet pipe (1) and a liquid outlet pipe (5), and the liquid inlet pipe (1) is provided with a water supply pump (2) and an electromagnetic valve (3); a long pipe (9) is vertically arranged on the water tank (4), one end of the long pipe (9) is plugged and is in contact with the bottom of the water tank (4), the other end of the long pipe (9) extends out of the water tank (4), and a plurality of platinum resistance liquid level sensors (8) are arranged in a linear array of the long pipe (9);

the pipe wall of long tube (9) is equipped with rather than the sleeve pipe (13) of inside intercommunication, and the inside of sleeve pipe (13) is equipped with retaining ring (14), and platinum resistance level sensor (8) adaptation is in retaining ring (14), and the one end threaded connection that long tube (9) were kept away from in sleeve pipe (13) has gland (15), and gland (15) are equipped with clamping ring (16) towards one side inside of sleeve pipe (13), are equipped with rubber seal (17) between clamping ring (16) and retaining ring (14).

2. The liquid level monitoring system based on the array type platinum resistor liquid level sensor as claimed in claim 1, wherein: still include AD conversion (11) and controller (12), a plurality of platinum resistance level sensor (8) are connected with AD conversion (11) electricity through wire (10), wire (10) are located long tube (9), AD conversion (11) convert the analog signal of platinum resistance level sensor (8) who gathers to digital signal feedback controller (12), start-stop of controller (12) control water supply pump (2) and solenoid valve (3).

3. The array type platinum resistor liquid level sensor-based liquid level monitoring system of claim 1, wherein: the diameter of the platinum resistance liquid level sensor (8) is smaller than that of the sleeve (13), the pressing ring (16) is adapted between the platinum resistance liquid level sensor (8) and the sleeve (13), and when the pressing cover (15) is in threaded connection with the sleeve (13), the pressing ring (16) extrudes the rubber sealing ring (17) and enables the rubber sealing ring to seal the outer wall of the platinum resistance liquid level sensor (8).

4. The liquid level monitoring system based on the array type platinum resistor liquid level sensor as claimed in claim 1, wherein: the outer wall of sleeve pipe (13) is equipped with the external screw thread, and gland (15) are equipped with the internal thread with sleeve pipe (13) adaptation.

5. The liquid level monitoring system based on the array type platinum resistor liquid level sensor as claimed in claim 1, wherein: the liquid outlet pipe (5) is provided with a stop valve (7) and a water outlet pump (6).