CN216524141U

CN216524141U - Electronic flow switch for measurement and control

Info

Publication number: CN216524141U
Application number: CN202123270456.4U
Authority: CN
Inventors: 李新茂; 张丽; 朱登兵
Original assignee: Shanghai Spock Measurement And Control Equipment Co ltd
Current assignee: Shanghai Spock Measurement And Control Equipment Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-13
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses an electronic flow switch for measurement and control, which comprises a flow switch main body, a flow probe and a dust cover, wherein a fastening bolt is installed on the flow switch main body, a threaded column is installed at the bottom of the fastening bolt, a fixed block is installed at the bottom of the threaded column, a pressure sensor is installed on the front surface of the fixed block, a controller is installed on the inner wall of one side of the flow switch main body, an alarm lamp is installed on the surface of the top of the flow switch main body, a buzzer is installed on the surface of the top of the flow switch main body, and the buzzer is located on one side of the alarm lamp. The electronic flow switch is provided with the element pressure sensor, the controller, the buzzer and the alarm lamp, and the phenomenon that the pressure in the pipeline exceeds the upper limit of the flow switch to cause the leakage of the pipeline is avoided by monitoring the liquid pressure in the installed pipeline in the process of using the electronic flow switch, so that the practicability of the flow switch is improved.

Description

Electronic flow switch for measurement and control

Technical Field

The utility model relates to the technical field of electronic flow switches, in particular to an electronic flow switch for measurement and control.

Background

The flow switch is mainly used for monitoring the water flow in a water system on line or in an insertion mode in medium pipelines such as water, gas and oil, when the water flow is higher than or lower than a certain set point, an alarm signal is triggered and output and transmitted to a unit, the system can make corresponding indication actions after acquiring the signal, the electronic flow switch is a thermal flow switch, the flow speed of the pipeline is detected by utilizing the heat transfer temperature difference principle, but the existing electronic flow switch still has some defects in the using process, and the electronic flow switch for measurement and control is provided for solving related problems.

The existing electronic flow switch has the defects that:

the patent document CN209087701U discloses an electronic flow switch, "including a meter body, an impeller, a signal converter and a controller, where the impeller is fixed in the meter body through a support component, the controller includes an acquisition module, a transmission module and a display module, the transmission module is integrated with a relay and an RS485 output port, when a measured fluid flows through the meter body, the impeller is forced to rotate, its rotation periodically changes the reluctance value of a magnetic loop of the signal converter, the magnetic flux in the detection coil changes accordingly, an induced electromotive force with the same frequency as the rotation frequency of the blade is generated, and is received by the acquisition module after being amplified, and is converted into a corresponding standard analog signal by the transmission module to be output to the display module and a valve electrically connected with the controller, when the flow in a pipeline reaches a set value, the relay sends a switching signal to control the opening and closing of the valve electrically connected with the controller, the electronic flow switch can simultaneously realize the functions of real-time display monitoring and control of pipeline fluid, but in the using process of the electronic flow switch, because the flow switch cannot monitor the pressure condition of a water pipe, the pressure in the pipeline is easy to exceed the upper limit of the flow switch due to the lack of a structure for detecting the liquid pressure in the installed pipeline, and the pipeline is leaked due to overlarge pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electronic flow switch for measurement and control, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an electronic flow switch for measurement and control comprises a flow switch main body, a flow probe and a dust cover, wherein a fastening bolt is installed on the flow switch main body, and a threaded column is installed at the bottom of the fastening bolt;

the flow switch is characterized in that a fixed block is mounted at the bottom of the threaded column, a pressure sensor is mounted on the front surface of the fixed block, a controller is mounted on the inner wall of one side of the flow switch main body, an alarm lamp is mounted on the surface of the top of the flow switch main body, a buzzer is mounted on the surface of the top of the flow switch main body, and the buzzer is located on one side of the alarm lamp;

the top surface mounting of flow switch main part has the display lamp, and the display lamp is located the place ahead of alarm lamp.

Preferably, the connecting pipe is installed to the interior diapire of flow switch main part, the rubber circle is installed at the top of connecting pipe, the shield is installed at the top of rubber circle, and the shield is located the inside of flow switch main part, the sealing washer is installed to the top surface equidistance of shield, the surface equidistance of shield runs through and installs the bolt.

Preferably, the flow probe is installed to the bottom of fixed block, the internally mounted of flow probe has temperature sensor, the bottom of flow probe is run through and is installed the core that generates heat, and the core that generates heat is located one side of temperature sensor.

Preferably, a display screen is installed on the top surface of the flow switch main body and is located on one side of the display lamp.

Preferably, the top surface of the flow switch main body is provided with an adjusting knob, and the adjusting knob is positioned at the other side of the display lamp.

Preferably, a connecting wire penetrates through the surface of the flow switch main body, and a protective sleeve is sleeved on the surface of the connecting wire.

Compared with the prior art, the utility model has the beneficial effects that:

1. the electronic flow switch is provided with the pressure sensor, the controller, the buzzer and the alarm lamp, the pressure sensor on the fixed block is used for detecting the pressure of liquid in the flow switch installation pipeline in the process of using the electronic flow switch, the alarm lamp can flash when the actual pressure value exceeds the upper limit of the preset value, so that a worker is reminded of troubleshooting through bright light, the worker is warned through the violent buzzing sound of the buzzer, the worker is prevented from not noticing the flashing alarm lamp, and the pressure of the liquid in the installation pipeline is monitored.

2. The electronic flow switch is provided with the connecting pipe, the dustproof cover, the rubber ring, the sealing ring and the bolt, wherein the connecting pipe is used for protecting and communicating a lead in the process of using the electronic flow switch, the dustproof cover is firstly arranged at the opening of the connecting pipe through the bolt, the connecting pipe is protected through the dustproof cover, dust impurities and connecting pipes are prevented from entering the flow switch, the lead in the connecting pipe penetrates through the through hole of the dustproof cover, the sealing ring at the through hole is utilized to sleeve the lead, the inside of the connecting pipe is sealed, the dust is prevented from leaking at the gap of the lead, and therefore the dust entering the connecting pipe from the gap of the flow probe is prevented from entering the inside of the flow switch.

Drawings

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

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a schematic view of a flow probe according to the present invention;

fig. 4 is a partial structural schematic diagram of the present invention.

In the figure: 1. a flow switch body; 2. fastening a bolt; 3. a threaded post; 4. a fixed block; 5. a flow probe; 501. a heat generating core; 502. a temperature sensor; 6. a pressure sensor; 7. a controller; 8. an alarm lamp; 9. a buzzer; 10. a connecting pipe; 11. a dust cover; 12. a rubber ring; 13. a seal ring; 14. a bolt; 15. a display screen; 16. a display lamp; 17. adjusting a knob; 18. connecting a lead; 19. a protective sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1, 2 and 3, an electronic flow switch for measurement and control includes a flow switch main body 1, a flow probe 5 and a dust cap 11, wherein a fastening bolt 2 is installed on the flow switch main body 1, and a threaded column 3 is installed at the bottom of the fastening bolt 2;

specifically, an installation space is provided for electronic components inside the flow switch through the flow switch main body 1, and the flow switch can be conveniently installed on a pipeline to be detected through the matching of the fastening bolt 2 and the threaded column 3.

As shown in fig. 2, an electronic flow switch for measurement and control, a fixed block 4 is installed at the bottom of a threaded column 3, a pressure sensor 6 is installed on the front surface of the fixed block 4, a controller 7 is installed on the inner wall of one side of a flow switch main body 1, an alarm lamp 8 is installed on the surface of the top of the flow switch main body 1, a buzzer 9 is installed on the surface of the top of the flow switch main body 1, and the buzzer 9 is located on one side of the alarm lamp 8.

Concretely, at the in-process that uses this electronic type flow switch, pressure sensor 6 through on the fixed block 4 detects the pressure of liquid in the flow switch installation pipeline, when pressure actual value surpassed the default upper limit, can make alarm lamp 8 scintillation, thereby remind the staff to need to investigate through the light, and warn the staff through the violent buzzing sound of bee calling organ 9, prevent that the staff from failing to notice the alarm lamp 8 that is twinkling, monitor the interior liquid pressure of installation pipeline from this, avoid leading to the pressure in the pipeline to surpass flow switch's upper limit, and cause the pipeline to take place the phenomenon of revealing, thereby improve this flow switch's practicality.

Flow probe 5 is installed to the bottom of fixed block 4, and flow probe 5's internally mounted has temperature sensor 502, and flow probe 5's bottom is run through and is installed the core 501 that generates heat, and the core 501 that generates heat is located one side of temperature sensor 502.

Specifically, the flow in the pipeline is detected according to the heat conduction principle of the flow probe 5, the flow probe 5 is internally provided with a heating core 501 and a temperature sensor 502 which are in contact with a medium, when the flow probe works, the heating core 501 emits constant heat, when no medium flows in the pipeline, the heat received by the temperature sensor 502 is a constant value, when the medium flows, the heat received by the temperature sensor 502 changes along with the change of the flow velocity of the medium, the temperature sensor 502 converts a temperature difference signal into an electric signal, and when the flow velocity reaches a set point, the flow switch outputs a switching value signal.

The top surface mounting of flow switch main part 1 has display lamp 16, and display lamp 16 is located the place ahead of alarm lamp 8, the top surface mounting of flow switch main part 1 has display screen 15, and display screen 15 is located one side of display lamp 16, the top surface mounting of flow switch main part 1 has adjust knob 17, and adjust knob 17 is located the opposite side of display lamp 16, the surface through mounting of flow switch main part 1 has connecting wire 18, connecting wire 18's surface has cup jointed lag 19.

Specifically, when a medium flows in the pipeline, the flow switch outputs a switching value signal, and then the green light of the display lamp 16 is lighted, so that the medium flowing in the pipeline is reflected, data information is observed through the display screen 15, the flow switch is connected with the control end through the connecting lead 18, and the connecting lead 18 is protected through the protecting sleeve 19.

Example two

As shown in fig. 4, in the electronic flow switch for measurement and control, a connecting pipe 10 is installed on the inner bottom wall of a flow switch main body 1, a rubber ring 12 is installed on the top of the connecting pipe 10, a dust cover 11 is installed on the top of the rubber ring 12, the dust cover 11 is located inside the flow switch main body 1, a sealing ring 13 is installed on the top surface of the dust cover 11 at an equal distance, and a bolt 14 is installed on the surface of the dust cover 11 at an equal distance in a penetrating manner.

In particular, when the flow switch is placed and detected for a long time, dust and impurities are easy to leak into the flow switch main body 1, in the process of using the electronic flow switch, the connecting pipe 10 is used for protecting and communicating a conducting wire, the dustproof cover 11 is firstly arranged at the opening of the connecting pipe 10 through the bolt 14, the connecting pipe 10 is protected by the dust cap 11, so that dust impurities and the connecting pipe 10 are prevented from entering the inside of the flow switch, since the wire in the connecting tube 10 passes through the through hole of the dust cap 11, the sealing ring 13 at the through hole is used to sleeve the wire, thereby sealing the inside of the connection pipe 10, preventing leakage of dust at the wire gap, thereby preventing dust entering the connection pipe 10 from the gap of the flow probe 5 from entering the inside of the flow switch, thereby avoiding the damage of the internal elements and prolonging the service life of the electronic flow switch.

The working principle is as follows: in the in-process using this electronic type flow switch, detect the pressure of liquid in the flow switch installation pipeline through pressure sensor 6 on fixed block 4, when pressure actual value surpassed the default upper limit, can make alarm lamp 8 scintillation, thereby remind the staff to need to investigate through the light, and the violent buzzing sound through bee calling organ 9 warns the staff, prevent that the staff from failing to notice the alarm lamp 8 that is twinkling, monitor the interior liquid pressure of installation pipeline from this, avoid leading to the pressure in the pipeline to surpass flow switch's upper limit, and cause the pipeline to take place the phenomenon of revealing, thereby improve this flow switch's practicality.

In the process of using this electronic type flow switch, connecting pipe 10 is used for protecting and communicates the wire, install shield 11 at the opening part of connecting pipe 10 through bolt 14 earlier, protect connecting pipe 10 through shield 11, avoid dust impurity and connecting pipe 10 to get into flow switch's inside, because the wire in the connecting pipe 10 passes the through-hole of shield 11, utilize sealing washer 13 of through-hole department to come to cup joint the wire, thereby seal the inside of connecting pipe 10, avoid the dust to take place to leak in wire gap department, prevent from getting into the inside that flow switch was got into to the dust that gets into connecting pipe 10 by 5 gap departments of flow probe from this, thereby avoid the damage to appear in the internal component, in order to improve this electronic type flow switch's life.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a observe and control and use electronic type flow switch, includes flow switch main part (1), flow probe (5) and shield (11), its characterized in that: a fastening bolt (2) is installed on the flow switch main body (1), and a threaded column (3) is installed at the bottom of the fastening bolt (2);

the flow switch is characterized in that a fixing block (4) is installed at the bottom of the threaded column (3), a pressure sensor (6) is installed on the front face of the fixing block (4), a controller (7) is installed on the inner wall of one side of the flow switch main body (1), an alarm lamp (8) is installed on the surface of the top of the flow switch main body (1), a buzzer (9) is installed on the surface of the top of the flow switch main body (1), and the buzzer (9) is located on one side of the alarm lamp (8);

the top surface mounting of flow switch main part (1) has display lamp (16), and display lamp (16) are located the place ahead of alarm lamp (8).

2. The electronic flow switch for measurement and control according to claim 1, characterized in that: connecting pipe (10) are installed to the inner diapire of flow switch main part (1), rubber circle (12) are installed at the top of connecting pipe (10), shield (11) are installed at the top of rubber circle (12), and shield (11) are located the inside of flow switch main part (1), sealing washer (13) are installed to the top surface equidistance of shield (11), bolt (14) are installed in the surface equidistance through-mounting of shield (11).

3. The electronic flow switch for measurement and control according to claim 1, characterized in that: flow probe (5) are installed to the bottom of fixed block (4), the internally mounted of flow probe (5) has temperature sensor (502), the bottom of flow probe (5) is run through and is installed core (501) that generates heat, and core (501) that generates heat is located one side of temperature sensor (502).

4. The electronic flow switch for measurement and control according to claim 1, characterized in that: the top surface mounting of flow switch main part (1) has display screen (15), and display screen (15) are located one side of display lamp (16).

5. The electronic flow switch for measurement and control according to claim 1, characterized in that: the top surface mounting of flow switch main part (1) has adjust knob (17), and adjust knob (17) are located the opposite side of display lamp (16).

6. The electronic flow switch for measurement and control according to claim 1, characterized in that: the flow switch is characterized in that a connecting lead (18) penetrates through the surface of the flow switch main body (1), and a protective sleeve (19) is sleeved on the surface of the connecting lead (18).