CN213455685U

CN213455685U - Prevent hot type gas mass flow meter of leakage

Info

Publication number: CN213455685U
Application number: CN202022778465.3U
Authority: CN
Inventors: 沈兴华; 王宇; 杨云舒
Original assignee: Jiangsu Huayun Instrument Co ltd
Current assignee: Jiangsu Huayun Instrument Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-06-15
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a prevent gaseous mass flow meter of hot type of leakage, the connecting pipe comprises a connecting pipe, one side fixedly connected with connector of connecting pipe, one side swing joint of connector have the connecting rod, the bottom fixedly connected with temperature probe and the heating probe of connecting rod, two fixed columns of one side inner wall fixedly connected with of connecting pipe, the top fixedly connected with guide bar of fixed column, the spout has been seted up to one side of guide bar, one side swing joint of spout has the scissors clamp. The utility model discloses can not make the rubber pad upward movement more inseparabler with connecting rod and connecting pipe are fixed under the effect of scissors clamp, strengthened the leakproofness of device, can also utilize the impurity in the filter screen filtered air, avoid impurity striking temperature probe and heating probe, improved the accuracy of data, can block rainwater, dust etc. through the protection casing moreover, prevent that the display screen from damaging, improved the life of display screen.

Description

Prevent hot type gas mass flow meter of leakage

Technical Field

The utility model relates to a gas flowmeter technical field especially relates to a prevent hot type gas mass flow meter of leakage.

Background

The thermal gas mass flowmeter is widely applied to a plurality of industries, and the principle is based on the thermal diffusion principle, namely, when fluid flows through a heating object, the heat loss of the heating object and the flow of the fluid form a certain proportional relation, the heat loss of a heat source and the flow form a nonlinear relation, and the thermal mass gas mass flowmeter can convert the relation into linear output of a measurement flow signal. Through retrieval, patent with publication number CN210426653U discloses a thermal gas mass flowmeter, which comprises an outlet connecting pipe with its left end inserted in an inlet connecting pipe, wherein the inlet connecting pipe and the outlet connecting pipe are sealed by a sealing ring. The above patents suffer from the following disadvantages: the sealing performance is not enough, and hot gas in the pipeline is easy to leak, so that the detection result is influenced, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hot type gas mass flow meter for preventing leakage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a leakproof thermal gas mass flowmeter comprises a connecting pipe, one side of the connecting pipe is fixedly connected with a connector, one side of the connector is movably connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a temperature measuring probe and a heating probe, the inner wall of one side of the connecting pipe is fixedly connected with two fixed columns, the tops of the fixed columns are fixedly connected with a guide rod, one side of the guide rod is provided with a chute, one side of the chute is movably connected with a scissor holder, one side of the guide rod is movably connected with a second sliding sleeve, the second sliding sleeve is movably connected with the connecting rod, a rubber pad is bonded on the top of the second sliding sleeve, one side of the guide rod is movably connected with the first sliding sleeve, one side of the first sliding sleeve is fixedly connected with a spring, and the other end of the spring is fixed with the second sliding sleeve, the top fixedly connected with treater of connecting rod, one side fixedly connected with display screen of treater.

Furthermore, one side of the display screen is fixedly connected with a protective cover.

Furthermore, one side of the connecting rod is fixedly connected with a hexagonal piece, and the bottom of the hexagonal piece is fixedly connected with a compression ring.

Furthermore, both ends of the connecting pipe are fixedly connected with flanges, and a sealing ring is bonded on one side of each flange.

Furthermore, a heat insulation sleeve is bonded on one side of the connecting pipe.

Furthermore, two filter screens are fixedly connected to the inner wall of one side of the connecting pipe, and the filter screens are located on two sides of the temperature measuring probe and the heating probe.

Furthermore, two baffles are fixedly connected to the inner wall of one side of the connecting pipe, and the baffles are located on two sides of the temperature measuring probe and the heating probe.

The utility model has the advantages that:

1. the scissors clamp and the second sliding sleeve are matched for use, so that one end of the scissors clamp slides upwards to enable the second sliding sleeve to move upwards, the connecting rod and the connecting pipe are fixed more tightly by the upward movement of the rubber gasket, gas leakage is prevented, and the sealing performance of the device is enhanced.

2. Through the setting of installation filter screen in the connecting tube for the impurity in the air can be filtered to the filter screen, avoids impurity striking temperature probe and heating probe, not only can play the effect of protection temperature probe and heating probe, can also make the detected data more accurate.

3. Through the setting at a side-mounting protection casing of display screen for the protection casing can block rainwater, dust etc. and cause the damage to the display screen, thereby makes the display screen obtain better protection, has improved the life of display screen.

Drawings

Fig. 1 is a schematic perspective view of a thermal gas mass flowmeter for preventing leakage according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a thermal gas mass flowmeter for preventing leakage according to the present invention;

fig. 3 is an enlarged schematic view of a part a of the leakage-proof thermal gas mass flowmeter of the present invention.

In the figure: 1. a protective cover; 2. a processor; 3. a hexagonal piece; 4. a display screen; 5. a connecting rod; 6. pressing a ring; 7. a flange; 8. a connector; 9. a thermal insulation sleeve; 10. a connecting pipe; 11. a seal ring; 12. a filter screen; 13. a baffle plate; 14. a spring; 15. a first sliding sleeve; 16. a guide bar; 17. fixing a column; 18. a scissor holder; 19. a temperature measuring probe; 20. heating the probe; 21. a second sliding sleeve; 22. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-3, a leak-proof thermal gas mass flowmeter comprises a connecting pipe 10, a connecting joint 8 is welded on one side of the connecting pipe 10, a connecting rod 5 is connected with one side of the connecting joint 8 through threads, a temperature measuring probe 19 and a heating probe 20 are fixed at the bottom of the connecting rod 5 through bolts, the heating probe 20 can heat air in the connecting pipe 10, the temperature measuring probe 19 can sense air temperature and output the air temperature, two fixing columns 17 are fixed on the inner wall of one side of the connecting pipe 10 through bolts, a guide rod 16 is fixed at the top of each fixing column 17 through bolts, a sliding groove is formed in one side of each guide rod 16, a scissor holder 18 is connected to one side of each sliding groove in a sliding manner, a second sliding sleeve 21 is connected to one side of each guide rod 16 in a sliding manner, the second sliding sleeve 21 is connected to the connecting rod 5 in a sliding manner, a rubber pad 22 is bonded, thereby can make rubber pad 22 upward movement fix connecting rod 5 inseparabler with connecting pipe 10, prevent gas leakage, the leakproofness of device has been strengthened, one side sliding connection of guide bar 16 has first sliding sleeve 15, there is spring 14 one side of first sliding sleeve 15 through the bolt fastening, and the other end and the second sliding sleeve 21 of spring 14 are fixed mutually, there is treater 2 at the top of connecting rod 5 through the bolt fastening, the model of treater 2 is ARM9TDMI, there is display screen 4 one side of treater 2 through the bolt fastening, treater 2 receives the gas temperature value of temperature probe 19 transmission, and calculate into corresponding flow value with the temperature value, show concrete flow value at display screen 4, make things convenient for the staff to look over.

In the utility model, it should be noted that, a protective cover 1 is fixed on one side of a display screen 4 through bolts, the protective cover 1 can prevent rainwater, dust and the like from damaging the display screen 4, thereby the display screen 4 is better protected, the service life of the display screen 4 is prolonged, a hexagonal piece 3 is welded on one side of a connecting rod 5, the hexagonal piece 3 is convenient for workers to install the connecting rod 5, the convenience of the device is improved, a compression ring 6 is welded on the bottom of the hexagonal piece 3, flanges 7 are welded on both ends of the connecting pipe 10, a sealing ring 11 is bonded on one side of the flange 7, the sealing ring 11 enables the connecting pipe 10 to be more tightly connected, the sealing performance of the device is improved, a heat preservation sleeve 9 is bonded on one side of the connecting pipe 10, the heat preservation sleeve 9 can play a heat preservation role on the connecting pipe 10, thereby the accuracy of the detection data of the device is improved, two filter screens 12 are fixed, and filter screen 12 is located the both sides of temperature probe 19 and heating probe 20, and filter screen 12 can filter the impurity in the air, avoids impurity striking temperature probe 19 and heating probe 20, not only can play the effect of protection temperature probe 19 and heating probe 20, can also make the detected data more accurate, and one side inner wall of connecting pipe 10 is fixed with two baffles 13 through the bolt, and baffle 13 is located the both sides of temperature probe 19 and heating probe 20.

The working principle is as follows: when the device is used, firstly, the connecting rod 5 is rotated, the connecting rod 5 moves downwards to press the scissor clamp 18, one end of the scissor clamp 18 moves upwards along the sliding groove, one end of the scissor clamp 18 moves upwards to push the first sliding sleeve 15 to move upwards, the first sliding sleeve 15 moves upwards to enable the second sliding sleeve 21 to move upwards, the spring 14 is compressed, the second sliding sleeve 21 moves upwards to enable the rubber gasket 22 to move upwards, so that the connecting rod 5 and the connecting pipe 10 can be fixed more tightly, when the device operates, firstly, air flows into the connecting pipe 10, when the air passes through the heating probe 20, the heating probe 20 heats the air, meanwhile, the temperature measuring probe 19 senses the air temperature and transmits the air temperature to the processor 2, and the processor 2 calculates the temperature value into a corresponding flow value and displays a specific flow value on the display screen 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A leakage-proof thermal gas mass flowmeter comprises a connecting pipe (10) and is characterized in that one side of the connecting pipe (10) is fixedly connected with a connecting head (8), one side of the connecting head (8) is movably connected with a connecting rod (5), the bottom of the connecting rod (5) is fixedly connected with a temperature measuring probe (19) and a heating probe (20), the inner wall of one side of the connecting pipe (10) is fixedly connected with two fixed columns (17), the tops of the fixed columns (17) are fixedly connected with a guide rod (16), one side of the guide rod (16) is provided with a sliding chute, one side of the sliding chute is movably connected with a scissor holder (18), one side of the guide rod (16) is movably connected with a second sliding sleeve (21), the second sliding sleeve (21) is movably connected with the connecting rod (5), the top of the second sliding sleeve (21) is bonded with a rubber pad (22), one side of the guide rod (16, one side fixedly connected with spring (14) of first sliding sleeve (15), and the other end and second sliding sleeve (21) of spring (14) are fixed mutually, the top fixedly connected with treater (2) of connecting rod (5), one side fixedly connected with display screen (4) of treater (2).

2. A leakage proof thermal gas mass flow meter according to claim 1, characterized in that a shield (1) is fixedly connected to one side of the display screen (4).

3. A leakage proof thermal gas mass flowmeter according to claim 1, characterized in that a hexagonal piece (3) is fixedly connected to one side of the connecting rod (5), and a clamping ring (6) is fixedly connected to the bottom of the hexagonal piece (3).

4. A leakage proof thermal gas mass flowmeter according to claim 1, characterized in that both ends of the connecting tube (10) are fixedly connected with flanges (7), and one side of the flange (7) is bonded with a sealing ring (11).

5. A leakage proof thermal gas mass flowmeter according to claim 1, characterized in that a thermal jacket (9) is glued to one side of the connection tube (10).

6. A leak resistant thermal gas mass flowmeter according to claim 1, characterized in that two filter screens (12) are fixedly connected to the inner wall of one side of the connecting tube (10), and the filter screens (12) are located on both sides of the temperature probe (19) and the heating probe (20).

7. A leakage proof thermal gas mass flowmeter as claimed in claim 6, characterized in that two baffles (13) are fixedly connected to the inner wall of one side of the connecting tube (10), and the baffles (13) are located on both sides of the temperature probe (19) and the heating probe (20).