CN219015382U

CN219015382U - On-line maintenance type thermal flowmeter

Info

Publication number: CN219015382U
Application number: CN202223479222.5U
Authority: CN
Inventors: 张东侠
Original assignee: Ruite Technology Tianjin Co ltd
Current assignee: Ruite Technology Tianjin Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-12
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses an online maintenance type thermal flowmeter, which comprises a gauge outfit, wherein the lower end of the gauge outfit is fixedly connected with a control box, the lower end of the control box is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a mounting box, the inside of the control box is fixedly connected with a data processing module and a data conversion module, the inside of the mounting box is fixedly connected with a mounting plate and a partition plate, the surface of the mounting plate is symmetrically provided with a first through hole, both sides of the first through hole are respectively provided with a mounting cavity, the inside of the mounting cavity is fixedly connected with an electric push rod, one side of the electric push rod is fixedly connected with an extrusion plate, the outer surface of the mounting box is provided with a heat insulation pad, and the inside of the mounting plate and the partition plate is provided with a temperature sensor and a flow rate sensor. Through above-mentioned structure, drive the stripper plate through setting up electric putter and fix temperature sensor and flow sensor, conveniently dismantle the installation, and then convenient maintenance.

Description

On-line maintenance type thermal flowmeter

Technical Field

The utility model relates to the technical field of flowmeters, in particular to an online maintenance type thermal flowmeter.

Background

The thermal flowmeter adopts a thermal diffusion principle, and the thermal diffusion technology is a technology with excellent performance and high reliability under severe conditions; when the two temperature sensors are placed in the medium, one of the two temperature sensors is heated to a temperature above the ambient temperature, the other temperature sensor is used for sensing the medium temperature, the medium flow rate is increased, the heat taken away by the medium is increased, the temperature difference of the two temperature sensors changes along with the change of the flow rate of the medium, and the fluid flow is obtained according to the proportional relation between the temperature difference and the medium flow rate.

The application number is CN201921011372.9, including the flowmeter tube socket, be equipped with wide shoulder hole down in the flowmeter tube socket, set gradually flowmeter instrument, instrument stay tube, flange, temperature sensor and flow rate sensor from top to bottom in the shoulder hole, have the hold-down screw that passes through threaded connection and compress tightly the flange with the flowmeter tube socket at gauge outfit stay tube overcoat, its special character lies in: the heat shield is covered and buckled outside the flange from bottom to top, a heat insulation plug seat socket which is welded with the bottom surface of the flange and covers the central hole of the flange in the heat insulation plug seat socket is arranged at the lower part of the stepped hole, a sealing ring is arranged between the heat insulation plug seat and the heat insulation plug seat socket, two vertical sensor jacks are arranged on the heat insulation plug seat, a temperature sensor and a flow velocity sensor are inserted in the corresponding sensor jacks, and a lead wire of the sensor sequentially penetrates through the flange, the instrument supporting tube and the measuring instrument.

The above-mentioned patent fixes temperature sensor and flow sensor through the binder, and when temperature sensor and flow sensor need maintenance, it is inconvenient to dismantle.

Disclosure of Invention

The utility model aims to provide an on-line maintenance type thermal flowmeter, which can fix a temperature sensor and a flow rate sensor by driving an extrusion plate through an electric push rod, is convenient to detach and install, and is further convenient to maintain.

To achieve the above object, there is provided an on-line maintenance type thermal flowmeter comprising: the meter comprises a meter head, wherein the lower end of the meter head is fixedly connected with a control box, the lower end of the control box is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with an installation box, and the inside of the control box is fixedly connected with a data processing module and a data conversion module;

the inside fixedly connected with mounting panel of mounting box, division board, the first through-hole has been seted up to the surface symmetry of mounting panel, the installation cavity has all been seted up to the both sides of first through-hole, the inside fixedly connected with electric putter in installation cavity, one side fixedly connected with stripper plate of electric putter, the surface of mounting box is provided with the heat insulating mattress, the inside of mounting panel, division board is provided with temperature sensor, flow sensor.

According to the on-line maintenance type thermal flowmeter, the lower end of the installation box is fixedly connected with a pipeline.

According to the on-line maintenance type thermal flowmeter, the mounting plate is located above the partition plate.

According to the on-line maintenance type thermal flowmeter, one side of the extrusion plate is fixedly connected with a protection pad.

According to the on-line maintenance type thermal flowmeter, the second through holes are symmetrically formed in the surface of the partition plate.

According to the on-line maintenance type thermal flowmeter, the temperature sensor and the flow velocity sensor penetrate through the mounting plate and the partition plate.

According to the on-line maintenance type thermal flowmeter, two electric push rods are arranged in each installation cavity.

The utility model aims to provide an on-line maintenance type thermal flowmeter, which mainly aims to provide the following innovation points:

1. this online maintenance formula flowmeter drives the stripper plate through setting up electric putter and fixes temperature sensor and velocity of flow sensor, conveniently dismantles the installation, and then convenient maintenance.

2. According to the on-line maintenance type thermal flowmeter, the heat insulation pad and the separation plate are arranged, so that heat conduction is effectively isolated between the external temperature and the temperature sensor as well as between the external temperature and the flow velocity sensor, the influence of the external temperature on the temperature sensor is effectively reduced, and measurement deviation is reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a perspective view of an on-line maintenance type thermal flowmeter according to the present utility model;

FIG. 2 is a cross-sectional view of the mounting case of the on-line maintenance type thermal flowmeter according to the present utility model;

FIG. 3 is a schematic diagram illustrating the structure of FIG. 2A according to the present utility model;

fig. 4 is a cross-sectional view of a control box of an on-line maintenance type thermal flowmeter according to the present utility model.

Legend description:

1. a gauge head; 2. a control box; 3. a connecting pipe; 4. a mounting box; 5. a pipe; 6. a mounting plate; 7. a partition plate; 8. a temperature sensor; 9. a flow rate sensor; 10. a mounting cavity; 11. an electric push rod; 12. an extrusion plate; 13. a protective pad; 14. a data processing module; 15. a data conversion module; 16. a first through hole; 17. a second through hole; 18. and a heat insulation pad.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-4, the online maintenance type thermal flowmeter of the embodiment of the utility model comprises a meter head 1, wherein the lower end of the meter head 1 is fixedly connected with a control box 2, the lower end of the control box 2 is fixedly connected with a connecting pipe 3, the lower end of the connecting pipe 3 is fixedly connected with a mounting box 4, and the inside of the control box 2 is fixedly connected with a data processing module 14 and a data conversion module 15;

the inside fixedly connected with mounting panel 6 of mounting box 4, division board 7, first through-hole 16 has been seted up to the surface symmetry of mounting panel 6, installation cavity 10 has all been seted up to the both sides of first through-hole 16, the inside fixedly connected with electric putter 11 of installation cavity 10, one side fixedly connected with stripper plate 12 of electric putter 11, through setting up electric putter 11, electric putter 11 drives stripper plate 12 and fixes temperature sensor 8 and velocity of flow sensor 9, the convenience is dismantled and is installed, and then the convenient maintenance, the surface of mounting box 4 is provided with heat insulating pad 18, through setting up heat insulating pad 18, division board 7, the outside temperature has effectively kept apart the heat conduction between temperature sensor 8 and the velocity of flow sensor 9, effectively reduce outside temperature to temperature sensor 8's influence, the measuring deviation has been reduced, the inside of mounting panel 6, division board 7 is provided with temperature sensor 8, velocity of flow sensor 9.

The lower extreme fixedly connected with pipeline 5 of mounting box 4, mounting panel 6 are located the top of division board 7, and one side fixedly connected with protection pad 13 of stripper plate 12 through setting up protection pad 13, protects temperature sensor 8, flow sensor 9, prevents its damage, and second through-hole 17 has been seted up to the surface symmetry of division board 7, and temperature sensor 8, flow sensor 9 all run through mounting panel 6, division board 7, and the inside of every installation cavity 10 all is provided with two electric putter 11.

Working principle: when the online maintenance type thermal flowmeter is used, a power supply is connected, the installation box 4 is fixed on a pipeline 5, the temperature and the flow rate are measured through the temperature sensor 8 and the flow rate sensor 9, the temperature sensor 8 and the flow rate sensor 9 transmit measured data information to the data conversion module 15, the data conversion module 15 carries out digital-to-analog conversion on the data information, the converted data information is transmitted to the data processing module 14, the data processing module 14 carries out data processing on the data information, and then the data information is transmitted to the meter head 1, and the data is displayed through the meter head 1; when the temperature sensor 8 and the flow rate sensor 9 need to be maintained, the electric push rod 11 is controlled to start, the electric push rod 11 drives the extrusion plate 12 to move, the limitation on the temperature sensor 8 and the flow rate sensor 9 is relieved, the disassembly is carried out, and then the maintenance is carried out.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. An on-line maintenance type thermal flowmeter, comprising: the meter comprises a meter head (1), wherein the lower end of the meter head (1) is fixedly connected with a control box (2), the lower end of the control box (2) is fixedly connected with a connecting pipe (3), the lower end of the connecting pipe (3) is fixedly connected with an installation box (4), and the inside of the control box (2) is fixedly connected with a data processing module (14) and a data conversion module (15);

the inside fixedly connected with mounting panel (6), division board (7) of mounting box (4), first through-hole (16) have been seted up to the surface symmetry of mounting panel (6), install chamber (10) have all been seted up to the both sides of first through-hole (16), the inside fixedly connected with electric putter (11) of install chamber (10), one side fixedly connected with stripper plate (12) of electric putter (11), the surface of mounting box (4) is provided with heat insulating pad (18), the inside of mounting panel (6), division board (7) is provided with temperature sensor (8), flow sensor (9).

2. The on-line maintenance type thermal flowmeter according to claim 1, wherein the lower end of the installation box (4) is connected with a pipe (5).

3. An on-line maintenance thermal flowmeter according to claim 1, characterized in that said mounting plate (6) is located above said partition plate (7).

4. The online maintenance type thermal flowmeter according to claim 1, wherein a protection pad (13) is fixedly connected to one side of the squeeze plate (12).

5. The online maintenance type thermal flowmeter according to claim 1, wherein the surface of the partition plate (7) is symmetrically provided with second through holes (17).

6. The online maintenance type thermal flowmeter according to claim 1, wherein the temperature sensor (8) and the flow rate sensor (9) penetrate through the mounting plate (6) and the partition plate (7).

7. The on-line maintenance type thermal flowmeter according to claim 1, characterized in that each of said mounting cavities (10) is internally provided with two electric pushrods (11).