CN214538083U - Thermal mass flow meter with safety protection mechanism - Google Patents
Thermal mass flow meter with safety protection mechanism Download PDFInfo
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- CN214538083U CN214538083U CN202120784706.7U CN202120784706U CN214538083U CN 214538083 U CN214538083 U CN 214538083U CN 202120784706 U CN202120784706 U CN 202120784706U CN 214538083 U CN214538083 U CN 214538083U
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Abstract
The utility model discloses a hot type mass flow meter with safety protection mechanism, including hot type mass flow meter, hot type mass flow meter surface is provided with the display screen, hot type mass flow meter left side is provided with power source, hot type mass flow meter right side is provided with signal interface, the fixed pipe that has cup jointed in hot type mass flow meter surface bottom, the first temperature sensor of hot type mass flow meter bottom surface fixedly connected with, pipeline right side fixedly connected with flange. The first metal sheet moves downwards along the thread direction of the first screw rod, and drives the second metal sheet to move upwards along the thread direction of the second screw rod, so that the first metal sheet is in contact with the second metal sheet, and the warning device gives an alarm; the purpose of conveniently alarming when the temperature of liquid in the thermal mass flow meter is too high is achieved, damage to elements of the thermal mass flow meter in a pipeline due to the fact that the temperature is too high is avoided, and the thermal mass flow meter is more convenient and more flexible to use.
Description
Technical Field
The utility model relates to a hot type mass flow meter technical field especially relates to a hot type mass flow meter with safety protection mechanism.
Background
Thermal mass flowmeters are weighing thermal flowmeters in China, measure fluid mass flow by using temperature field changes generated when fluid flows through a pipeline heated by an external heat source, or measure fluid mass flow by using the relation between energy required by the fluid temperature rising to a certain value and fluid mass when the fluid is heated, are generally used for measuring the mass flow of gas and have low pressure loss; the flow range is large, and the precision, the repeatability and the reliability are high; the TMF has long history of measuring the mass flow of the fluid by utilizing the heat (or temperature) change of the heated fluid, and the early TMF directly puts a heating coil and a temperature measuring element into the fluid to be directly contacted with the fluid, is a contact type flowmeter, and has great limitation on the industrial application because the problems of mouth erosion, abrasion, explosion prevention and the like cannot be solved.
Most of existing thermal mass flowmeters lack of alarm devices, the thermal mass flowmeters are difficult to alarm when the temperature of liquid in the thermal mass flowmeters is too high, elements of the thermal mass flowmeters in pipelines are easily damaged due to the too high temperature, and the thermal mass flowmeters are inconvenient and inflexible to use.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a hot type mass flow meter with safety protection mechanism has solved the most alarm device that lacks of current hot type mass flow meter, is difficult to the problem that liquid temperature was too high to report to the police in hot type mass flow meter.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a thermal mass flowmeter with a safety protection mechanism comprises a thermal mass flowmeter, wherein a display screen is arranged on the surface of the thermal mass flowmeter, a power supply interface is arranged on the left side of the thermal mass flowmeter, a signal interface is arranged on the right side of the thermal mass flowmeter, a pipeline is fixedly sleeved at the bottom of the surface of the thermal mass flowmeter, a first temperature sensor is fixedly connected to the bottom surface of the thermal mass flowmeter, a flange is fixedly connected to the right side of the pipeline, a second temperature sensor is fixedly connected to the top surface of the inner wall of the pipeline, an equipment box is fixedly connected to the top surface of the pipeline, a limiting groove is formed in the inner side wall of the equipment box, a first sliding plate is slidably connected to the inner wall of the limiting groove, a first metal sheet is fixedly connected to the right side of the first sliding plate, a first threaded hole is formed in a penetrating mode between the top surface and the bottom surface of the first metal sheet, and a first lead screw is connected to the inner wall of the first threaded hole in a threaded mode, the surface of the first lead screw is fixedly sleeved with a first gear, the top and the bottom of the surface of the first lead screw are sleeved with a first bearing, the first lead screw is rotatably connected with the equipment box through the first bearing, the top surface of the equipment box is fixedly connected with a protective cover, the inner wall of the protective cover is fixedly connected with a motor, the output end of the motor is fixedly connected with a second lead screw, the top of the surface of the second lead screw is sleeved with a second bearing, the bottom of the surface of the second lead screw is sleeved with the first bearing, the second lead screw is rotatably connected with the equipment box through the first bearing and the second bearing, the surface of the second lead screw is fixedly sleeved with a second gear, the inner wall of the limiting groove is slidably connected with a second sliding plate, the left side of the second sliding plate is fixedly connected with a second metal sheet, and the top surface and the bottom surface of the second metal sheet are provided with a second threaded hole in a penetrating way, and the second screw hole and the second lead screw threaded connection set up, equipment box left side fixedly connected with attention device.
Preferably, the number of the flanges is two, and the two flanges are respectively positioned on the left side and the right side of the pipeline.
Preferably, the surface of the flange is fixedly connected with a connecting pad, and the connecting pad is made of rubber.
Preferably, the protective cover is of a box-shaped structure and is made of a plastic material.
Preferably, the first screw rod and the second screw rod are equal in volume and are of cylindrical structures.
Preferably, the first metal sheet and the second metal sheet are both of a disc-shaped structure, and the first metal sheet and the second metal sheet are made of iron materials.
Compared with the prior art, the beneficial effects of the utility model are that: when a second temperature sensor monitors that the temperature in a pipeline is overhigh, a motor drives a second screw rod and a second gear to rotate, drives a first gear to rotate, drives the first screw rod to rotate, enables a first metal sheet to move downwards along the thread direction of the first screw rod, and simultaneously drives a second metal sheet to move upwards along the thread direction of the second screw rod, enables the first metal sheet to be in contact with the second metal sheet, and enables an alarm to give an alarm; the purpose of conveniently alarming when the temperature of liquid in the thermal mass flow meter is too high is achieved, damage to elements of the thermal mass flow meter in a pipeline due to the fact that the temperature is too high is avoided, and the thermal mass flow meter is more convenient and more flexible to use.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a front sectional view of the structure of the present invention.
In the figure: the device comprises a 1-type thermal mass flowmeter, a 2-type display screen, a 3-type power supply interface, a 4-type signal interface, a 5-type connecting pad, a 6-type first temperature sensor, a 7-type pipeline, a 8-type flange, a 9-type second temperature sensor, a 10-type equipment box, a 11-type limiting groove, a 12-type first sliding plate, a 13-type first metal sheet, a 14-type first threaded hole, a 15-type first screw rod, a 16-type first bearing, a 17-type protective cover, a 18-type motor, a 19-type second bearing, a 20-type second screw rod, a 21-type second gear, a 22-type second sliding plate, a 23-type second metal sheet, a 24-type second threaded hole, a 25-type alarm and a 26-type first gear.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a thermal mass flowmeter with a safety protection mechanism comprises a thermal mass flowmeter 1, a display screen 2 is arranged on the surface of the thermal mass flowmeter 1, a power supply 3 is arranged on the left side of the thermal mass flowmeter 1, a signal interface 4 is arranged on the right side of the thermal mass flowmeter 1, a pipeline 7 is fixedly sleeved on the bottom of the surface of the thermal mass flowmeter 1, a first temperature sensor 6 is fixedly connected to the bottom of the thermal mass flowmeter 1, a flange 8 is fixedly connected to the right side of the pipeline 7, the number of the flanges 8 is two, the two flanges 8 are respectively arranged on the left side and the right side of the pipeline 7, so that the pipeline 7 can be conveniently fixed, a connecting pad 5 is fixedly connected to the surface of the flange 8, the connecting pad 5 is made of rubber material, the pipeline 7 and the connecting pipeline are more tightly connected, leakage is not easy to occur, and the pipeline 7 is more stably fixed, the top surface of the inner wall of the pipeline 7 is fixedly connected with a second temperature sensor 9, the top surface of the pipeline 7 is fixedly connected with an equipment box 10, the inner side wall of the equipment box 10 is provided with a limit groove 11, the inner wall of the limit groove 11 is connected with a first sliding plate 12 in a sliding way, the right side of the first sliding plate 12 is fixedly connected with a first metal sheet 13, the first metal sheet 13 and the second metal sheet 23 are both in a circular plate structure, the first metal sheet 13 and the second metal sheet 23 are made of iron materials, the top surface and the bottom surface of the first metal sheet 13 are provided with a first threaded hole 14 in a penetrating way, the inner wall of the first threaded hole 14 is in threaded connection with a first lead screw 15, the volumes of the first lead screw 15 and the second lead screw 20 are equal, the first lead screw 15 and the second lead screw 20 are both in a cylindrical structure, the surface of the first lead screw 15 is fixedly sleeved with a first gear 26, the top and the bottom of the surface of the first lead screw 15 are sleeved with a first bearing 16, and the first lead screw 15 is rotatably connected with the equipment box 10 through the first bearing 16, the top surface of the equipment box 10 is fixedly connected with a protective cover 17, the protective cover 17 is of a box-shaped structure, the protective cover 17 is made of plastic materials, so that the device is lighter in weight, the inner wall of the protective cover 17 is fixedly connected with a motor 18, the output end of the motor 18 is fixedly connected with a second lead screw 20, the top of the surface of the second lead screw 20 is sleeved with a second bearing 19, the bottom of the surface of the second lead screw 20 is sleeved with a first bearing 16, the second lead screw 20 is rotatably connected with the equipment box 10 through the first bearing 16 and the second bearing 19, the surface of the second lead screw 20 is fixedly sleeved with a second gear 21, the inner wall of the limiting groove 11 is slidably connected with a second sliding plate 22, the left side of the second sliding plate 22 is fixedly connected with a second metal sheet 23, the top surface and the bottom surface of the second metal sheet 23 are provided with a second threaded hole 24 in a penetrating manner, the second threaded hole 24 is in threaded connection with the second lead screw 20, the left side of the equipment box 10 is fixedly connected with a warning device 25, when the second temperature sensor 9 monitors that the temperature in the pipeline 7 is too high, the motor 18 drives the second screw rod 20 and the second gear 21 to rotate, drives the first gear 26 to rotate, drives the first screw rod 15 to rotate, so that the first metal sheet 13 moves downwards along the thread direction of the first screw rod 15, and simultaneously drives the second metal sheet 23 to move upwards along the thread direction of the second screw rod 20, so that the first metal sheet 13 is in contact with the second metal sheet 23, and the alarm 25 gives an alarm; the purpose of conveniently alarming when the temperature of liquid in the thermal mass flow meter is too high is achieved, damage to elements of the thermal mass flow meter in a pipeline due to the fact that the temperature is too high is avoided, and the thermal mass flow meter is more convenient and more flexible to use.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
When in use: when the second temperature sensor 9 monitors that the temperature in the pipeline 7 is too high, the motor 18 drives the output end to rotate, so as to drive the second screw rod 20 and the second gear 21 to rotate, the first gear 26 is driven to rotate through the second gear 21, the first screw rod 15 is driven to rotate through the first gear 26, so that the first metal sheet 13 moves downwards along the thread direction of the first screw rod 15, and meanwhile, the second metal sheet 23 is driven to move upwards along the thread direction of the second screw rod 20, so that the first metal sheet 13 is in contact with the second metal sheet 23, and the warning device 25 gives an alarm.
In summary, when the second temperature sensor 9 monitors that the temperature in the pipeline 7 is too high, the motor 18 drives the second lead screw 20 and the second gear 21 to rotate, so as to drive the first gear 26 to rotate, so as to drive the first lead screw 15 to rotate, so that the first metal sheet 13 moves downwards along the thread direction of the first lead screw 15, and simultaneously, the second metal sheet 23 moves upwards along the thread direction of the second lead screw 20, so that the first metal sheet 13 is in contact with the second metal sheet 23, and the alarm 25 gives an alarm; the purpose of being convenient for report to the police at the high liquid temperature in hot type mass flow meter is realized, it is impaired to the component that hot type mass flow meter is in the pipeline to have avoided the high temperature, and it is more convenient to use, and is more nimble, has solved the most alarm device that lacks of current hot type mass flow meter, is difficult to the problem that the high liquid temperature reports to the police in hot type mass flow meter.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The thermal mass flow meter with the safety protection mechanism comprises a thermal mass flow meter (1) and is characterized in that a display screen (2) is arranged on the surface of the thermal mass flow meter (1), a power supply interface (3) is arranged on the left side of the thermal mass flow meter (1), a signal interface (4) is arranged on the right side of the thermal mass flow meter (1), a pipeline (7) is fixedly sleeved at the bottom of the surface of the thermal mass flow meter (1), a first temperature sensor (6) is fixedly connected to the bottom surface of the thermal mass flow meter (1), a flange (8) is fixedly connected to the right side of the pipeline (7), a second temperature sensor (9) is fixedly connected to the top surface of the inner wall of the pipeline (7), an equipment box (10) is fixedly connected to the top surface of the pipeline (7), and a limit groove (11) is formed in the inner side wall of the equipment box (10), the inner wall of the limiting groove (11) is connected with a first sliding plate (12) in a sliding manner, the right side of the first sliding plate (12) is fixedly connected with a first metal sheet (13), the top surface and the bottom surface of the first metal sheet (13) are penetrated and provided with a first threaded hole (14), the inner wall of the first threaded hole (14) is connected with a first lead screw (15) in a threaded manner, the surface of the first lead screw (15) is fixedly sleeved with a first gear (26), the top and the bottom of the surface of the first lead screw (15) are sleeved with a first bearing (16), the first lead screw (15) is rotatably connected with an equipment box (10) through the first bearing (16), the top surface of the equipment box (10) is fixedly connected with a protective cover (17), the inner wall of the protective cover (17) is fixedly connected with a motor (18), the output end of the motor (18) is fixedly connected with a second lead screw (20), the top of the surface of the second lead screw (20) is sleeved with a second bearing (19), the surface bottom of the second screw rod (20) is sleeved with a first bearing (16), the second screw rod (20) is rotatably connected with the equipment box (10) through the first bearing (16) and a second bearing (19) and is provided with a second gear (21), the inner wall of the limiting groove (11) is slidably connected with a second sliding plate (22), the left side of the second sliding plate (22) is fixedly connected with a second metal sheet (23), the top surface and the bottom surface of the second metal sheet (23) are penetrated through and provided with a second threaded hole (24), the second threaded hole (24) is in threaded connection with the second screw rod (20), and the left side of the equipment box (10) is fixedly connected with a warning device (25).
2. Thermal mass flow meter with safety protection mechanism according to claim 1, characterized in that the number of flanges (8) is two and that two flanges (8) are located on the left and right side of the pipe (7), respectively.
3. The thermal mass flow meter with the safety protection mechanism according to claim 1, characterized in that the flange (8) is fixedly connected with a connection pad (5) on the surface, and the connection pad (5) is made of rubber.
4. The thermal mass flow meter with a safety mechanism according to claim 1, characterized in that the protective cover (17) is of a box-like structure, and the protective cover (17) is made of plastic material.
5. The thermal mass flow meter with the safety protection mechanism according to claim 1, wherein the first lead screw (15) and the second lead screw (20) have the same volume, and the first lead screw (15) and the second lead screw (20) are both cylindrical structures.
6. The thermal mass flow meter with the safety mechanism according to claim 1, wherein the first metal sheet (13) and the second metal sheet (23) are both of a disc-shaped structure, and the first metal sheet (13) and the second metal sheet (23) are made of an iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120784706.7U CN214538083U (en) | 2021-04-16 | 2021-04-16 | Thermal mass flow meter with safety protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120784706.7U CN214538083U (en) | 2021-04-16 | 2021-04-16 | Thermal mass flow meter with safety protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214538083U true CN214538083U (en) | 2021-10-29 |
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ID=78274570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120784706.7U Active CN214538083U (en) | 2021-04-16 | 2021-04-16 | Thermal mass flow meter with safety protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214538083U (en) |
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2021
- 2021-04-16 CN CN202120784706.7U patent/CN214538083U/en active Active
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