阅读说明：本技术 Dx-100l气体流量计 (DX-100L gas flowmeter ) 是由 张德礼 汤祖安 孙娟 于 2020-07-07 设计创作，主要内容包括：本发明涉及气体流量计技术领域,且公开了DX-100L气体流量计,包括内部设置有气体通道的连接头、通过螺栓固定安装在连接头顶部的固定块,所述固定块的内部活动套接有传感器组件,所述传感器组件的内部设置有传输线,所述固定块的顶部螺纹套接有套装在传输线外侧的密封套,且传输线延伸出密封套外部的顶端设置有接口。该DX-100L气体流量计,通过密封缓冲垫和密封套的配合使用,使得气体流量计能够对安装在内部的传感器进行缓冲,防止气体流量计产生震动影响传感器的测量精度,同时利用密封环能够增强传感器与连接头之间的密封性,防止传感器震动时气体泄漏,导致待测气体的气压不稳定,影响测量结果。(The invention relates to the technical field of gas flow meters and discloses a DX-100L gas flow meter which comprises a connector and a fixed block, wherein a gas channel is arranged inside the connector, the fixed block is fixedly arranged at the top of the connector through a bolt, a sensor assembly is movably sleeved inside the fixed block, a transmission line is arranged inside the sensor assembly, a seal sleeve sleeved outside the transmission line is sleeved on the top of the fixed block in a threaded manner, and a connector is arranged at the top end of the transmission line, which extends out of the seal sleeve. This DX-100L gas flowmeter uses through the cooperation of sealed blotter and seal cover for gas flowmeter can cushion the sensor of installation in inside, prevents that gas flowmeter from producing vibrations and influencing the measurement accuracy of sensor, utilizes the sealing ring can strengthen the leakproofness between sensor and the connector simultaneously, and gas leakage when preventing the sensor vibrations leads to the atmospheric pressure of the gas that awaits measuring unstable, influences measuring result.)

DX-100L gas flowmeter, including inside connector (1) that is provided with gas passage, fixed block (3) through bolt (2) fixed mounting at connector (1) top, its characterized in that: sensor module (4) have been cup jointed in the inside activity of fixed block (3), the inside of sensor module (4) is provided with transmission line (5), the top screw thread of fixed block (3) has cup jointed seal cover (6) of suit in the transmission line (5) outside, and transmission line (5) extend the outside top of seal cover (6) and be provided with interface (7).

2. The DX-100L gas meter of claim 1, wherein: and a sealing cushion pad is arranged between the connector (1) and the fixing block (3).

3. The DX-100L gas meter of claim 1, wherein: sensor module (4) cup joint fixed cover (41) inside fixed block (3) including the activity, the bottom cover of fixed cover (41) is equipped with the activity and cup joints sealing ring (42) inside connector (1), and the bottom of fixed cover (41) is fixed to have cup jointed fixing base (43), the inside of fixing base (43) is provided with respectively and carries out the first reference level platinum resistance temperature sensor (44) and the second reference level platinum resistance temperature sensor (45) of electricity connection between transmission line (5), seal cover (46) has been cup jointed in the equal activity in middle part of first reference level platinum resistance temperature sensor (44) and second reference level platinum resistance temperature sensor (45).

4. A DX-100L gas meter according to claim 3, wherein: one side of the fixed sleeve (41) is provided with a limiting rod.

5. The DX-100L gas meter of claim 1, wherein: the connector (1) is located the inside of fixed cover (41) one side and is seted up the first spacing hole with gag lever post looks adaptation, and the inside of connector (1) is seted up the spacing hole of second with seal cover (46) looks adaptation.

6. The DX-100L gas meter of claim 1, wherein: the front of the connector (1) is provided with a mounting direction indication arrow.

Technical Field

The invention relates to the technical field of gas flowmeters, in particular to a DX-100L gas flowmeter.

Background

The gas flowmeter is designed based on the thermal diffusion principle, and adopts a constant temperature difference method to accurately measure gas.

The inside direct fixed connection of sensor of current partial gas flowmeter is in gas flowmeter's inside, the sensor receives the influence of vibrations easily at the in-process that uses, it is not accurate enough to lead to the measuring precision, measuring because saturation oil gas flow is too much other part contact with the sensor to saturation oil gas, make saturation oil gas temperature change great, need set up temperature and pressure sensor in gas flowmeter's inside and compensate, it is very inconvenient to measure, the spare part is more simultaneously leads to gas flowmeter's volume great, the inconvenient maintenance of installing and dismantling.

Disclosure of Invention

Aiming at the defects of the background art, the invention provides a DX-100L gas flowmeter, which solves the problems provided by the background art.

The invention provides the following technical scheme: the DX-100L gas flowmeter comprises a connector and a fixed block, wherein a gas channel is arranged inside the connector, the fixed block is fixedly installed at the top of the connector through a bolt, a sensor assembly is movably sleeved inside the fixed block, a transmission line is arranged inside the sensor assembly, a sealing sleeve sleeved outside the transmission line is sleeved on the top of the fixed block in a threaded manner, and a connector is arranged at the top end of the transmission line extending out of the sealing sleeve.

Preferably, a sealing cushion pad is arranged between the connecting head and the fixing block.

Preferably, sensor module cup joints the fixed cover inside the fixed block including the activity, the bottom cover of fixed cover is equipped with the activity and cup joints the sealing ring inside the connector, and the fixed fixing base that has cup jointed in bottom of fixed cover, the inside of fixing base is provided with respectively and carries out the first benchmark level platinum resistance temperature sensor and the second benchmark level platinum resistance temperature sensor of electricity connection between the transmission line, the seal cover has been cup jointed in the equal activity in middle part of first benchmark level platinum resistance temperature sensor and the second benchmark level platinum resistance temperature sensor.

Preferably, one side of the fixed sleeve is provided with a limiting rod.

Preferably, the connector is located the inside of fixed cover one side and is seted up the first spacing hole with gag lever post looks adaptation, and the inside of connector is seted up the spacing hole of second with sealed cover looks adaptation.

Preferably, the front surface of the connector is provided with a mounting direction indication arrow.

The invention has the following beneficial effects:

1. this DX-100L gas flowmeter uses through the cooperation of sealed blotter and seal cover for gas flowmeter can cushion the sensor of installation in inside, prevents that gas flowmeter from producing vibrations and influencing the measurement accuracy of sensor, utilizes the sealing ring can strengthen the leakproofness between sensor and the connector simultaneously, and gas leakage when preventing the sensor vibrations leads to the atmospheric pressure of the gas that awaits measuring unstable, influences measuring result.

2. This DX-100L gas flowmeter, through the connector, first benchmark level platinum resistance temperature sensor, second benchmark level platinum resistance temperature sensor, a fixed base, the cooperation of transmission line and interface is used, make other parts on the sensor can not with the gaseous contact that awaits measuring, first benchmark level platinum resistance temperature sensor and second benchmark level platinum resistance temperature sensor can be abundant simultaneously and the gaseous contact that awaits measuring, need not compensate at inside temperature and the pressure sensor that sets up of gas flowmeter, can directly measure through the external display terminal of interface, it is very convenient to measure, gas flowmeter's volume has been reduced simultaneously, the convenience is installed and is dismantled the maintenance to gas flowmeter.

Drawings

FIG. 1 is a cross-sectional view of a structure of the present invention;

FIG. 2 is a top schematic view of the structure of the present invention;

FIG. 3 is a schematic structural diagram of the present invention.

In the figure: 1. a connector; 2. a bolt; 3. a fixed block; 4. a sensor assembly; 41. fixing a sleeve; 42. a seal ring; 43. a fixed seat; 44. a first reference grade platinum resistance temperature sensor; 45. a second reference grade platinum resistance temperature sensor; 46. sealing sleeves; 5. a transmission line; 6. sealing sleeves; 7. an interface.

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.

The drawings in the embodiments of the invention: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1-3, the DX-100L gas flowmeter includes a connector 1 having a gas channel therein, and a fixing block 3 fixedly mounted on the top of the connector 1 by a bolt 2, wherein a sensor assembly 4 is movably sleeved inside the fixing block 3, a transmission line 5 is disposed inside the sensor assembly 4, a gland 6 sleeved outside the transmission line 5 is sleeved on the top of the fixing block 3 by a thread, and a connector 7 is disposed on the top end of the transmission line 5 extending out of the gland 6.

Wherein, be provided with sealed blotter between connector 1 and the fixed block 3, utilize sealed blotter to cushion fixed block 3 when can sealing up the junction of connector 1 and fixed block 3.

Wherein, sensor unit 4 is including the activity cup joint at the inside fixed cover 41 of fixed block 3, the bottom cover of fixed cover 41 is equipped with the activity and cup joints at the inside sealing ring 42 of connector 1, and the fixed cover in bottom of fixed cover 41 has connect fixing base 43, the inside of fixing base 43 is provided with respectively and carries out the first reference level platinum resistance temperature sensor 44 and the second reference level platinum resistance temperature sensor 45 of electric connection between transmission line 5, the seal cover 46 has all been cup jointed in the activity in the middle part of first reference level platinum resistance temperature sensor 44 and the second reference level platinum resistance temperature sensor 45.

Wherein, one side of fixed cover 41 is provided with the gag lever post, utilizes the gag lever post to make things convenient for sensor assembly 4's installation.

Wherein, the connector 1 is located the inside of fixed cover 41 one side and has seted up the first spacing hole with gag lever post looks adaptation, and the inside of connector 1 sets up the spacing hole of second with seal cover 46 looks adaptation, utilize the spacing hole of second to make things convenient for the installation of first benchmark level platinum resistance temperature sensor 44 and second benchmark level platinum resistance temperature sensor 45, seal cover 46 can be hugged closely with the spacing hole of second simultaneously, prevent that the gas that awaits measuring from leaking, lead to pressure reduction, influence measuring result.

Wherein, the front of connector 1 is provided with installation direction instruction arrow, utilizes the installation that indicates the arrow and makes things convenient for gas flowmeter.

When the gas flowmeter is used, the interface 7 is inserted into a display terminal, and when the gas flowmeter is in operation, the first reference grade platinum resistance temperature sensor 44 measures the medium temperature T1 uninterruptedly, the second reference grade platinum resistance temperature sensor 45 self-heats to a temperature higher than the medium temperature T2 and is used for sensing the flow rate of fluid, namely a speed sensor, when fluid flows, gas molecules collide with the sensor and take away heat of T2, so that the temperature of T2 is reduced, if the temperature delta T is kept constant, the supply current of T2 is increased, the faster the gas flowing speed is, the more heat is taken away, the gas flow rate and the increased heat have a fixed functional relationship, and the first reference grade platinum resistance temperature sensor 44 and the second reference grade platinum resistance temperature sensor 45 transmit measurement to a display terminal through a transmission line 5 to display the measurement result.

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.