CN217637495U

CN217637495U - Mass flow transmitter

Info

Publication number: CN217637495U
Application number: CN202221127158.1U
Authority: CN
Inventors: 刘杰; 唐勇志; 王国武; 曹玉柱; 王欣
Original assignee: Hefei Jingda Instrument Co ltd
Current assignee: Hefei Jingda Instrument Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-10-21
Anticipated expiration: 2032-05-11

Abstract

The application relates to the technical field of flow measurement, and discloses a mass flow transmitter, including the dustcoat, the inner wall upper end fixedly connected with draught tube subassembly of dustcoat, the inside of dustcoat is equipped with two U-shaped nest of tubes, and two U-shaped nest of tubes all are linked together with the draught tube subassembly and set up, and the inboard flexion of two U-shaped nest of tubes is connected with the vibration exciter jointly, and the both sides of two U-shaped nest of tubes all are equipped with displacement sensor. This application can produce certain frequency vibration through two return bends to flow can directly be measured to two displacement sensor of cooperation, and measurement accuracy is high, and the range is wide, and reduces external disturbance, improves the result of use, can measure flow temperature simultaneously.

Description

Mass flow transmitter

Technical Field

The application relates to the technical field of flow measurement, especially, relate to a mass flow transmitter.

Background

The flow transmitter is also called as a flow sensor, namely a flowmeter for short, and is widely applied to the technical process detection and trade metering occasions in the industries of petroleum, chemical engineering, metallurgy, ships, electric power, food, medicine, environmental protection, energy and the like.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the technology, the coriolis force flowmeter is a meter for directly measuring the mass flow by utilizing the principle that the coriolis force proportional to the mass flow is generated by the fluid flowing in the vibrating tube, and the coriolis force flowmeter has a U shape, an annular shape, a straight tube shape and the like.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is in order to solve among the prior art science formula force flowmeter and to have the detection effect relatively poor, receives the great condition of external disturbance, leads to the result of use not good, is unfavorable for the problem of daily production use, and a mass flow transmitter who provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a mass flow changer, includes the dustcoat, the inner wall upper end fixedly connected with draught tube subassembly of dustcoat, the inside of dustcoat is equipped with two U-shaped nest of tubes, two the U-shaped nest of tubes all is linked together with the draught tube subassembly and sets up, two the inboard flexion of U-shaped nest of tubes is connected with the vibration exciter jointly, two the both sides of U-shaped nest of tubes all are equipped with displacement sensor.

Preferably, a platinum resistor assembly is fixedly inserted on the upper side of the pipe wall of the vertical part of one of the U-shaped pipe groups, and a temperature measuring part of the platinum resistor assembly is arranged in the U-shaped pipe group.

Preferably, the bending parts of the inner side walls of the two U-shaped pipe groups are fixedly connected with vertically arranged support frames, the vibration exciter is arranged in the two support frames, and the side walls of the two support frames and the side walls of the vibration exciter are in threaded connection with a set of locking screws together.

Preferably, a circuit support group is arranged at a position, between the two U-shaped tube groups, in the outer cover, and the upper end of the circuit support group sequentially penetrates through the upper end of the outer cover and the central position of the draft tube assembly.

Preferably, one side of the vibration exciter is provided with a vibration exciting counterweight, and the two displacement sensors are connected with displacement counterweights.

Preferably, each rod wall of the locking screw is in threaded connection with a hexagon nut, a gasket group is arranged between the side wall of the hexagon nut and the side wall of the supporting frame on the same side, and each gasket group is movably sleeved with the rod wall of the locking screw on the same side.

Compared with the prior art, the application provides a mass flow transmitter, possesses following beneficial effect:

1. this mass flow changer, through dustcoat, draught tube subassembly, U-shaped nest of tubes, vibration exciter and two displacement sensor's that are equipped with mutually supporting, can produce certain frequency vibration through double-bending pipe to flow can directly be measured to two displacement sensor of cooperation, measurement accuracy is high, and the range is wide, and through the setting of dustcoat, can prevent that outside foreign matter from striking U-shaped nest of tubes influence the measurement, reduces external disturbance, improves the result of use.

2. This mass flow changer through the platinum resistance subassembly that is equipped with, can arouse the change of platinum resistance according to the temperature height to flow temperature is obtained through measuring current variation.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, and this application can produce certain frequency vibration through double-bent pipe to two displacement sensor of cooperation can directly measure the flow, and measurement accuracy is high, and the range is wide, and reduces external disturbance, improves the result of use, can measure the flow temperature simultaneously.

Drawings

FIG. 1 is a schematic diagram of a mass flow transmitter according to the present application;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is an enlarged view of the portion A in FIG. 2;

fig. 4 is a schematic top view of the structure of fig. 1.

In the figure: 1. a housing; 2. a draft tube assembly; 3. a U-shaped tube group; 4. a vibration exciter; 5. a displacement sensor; 6. a platinum resistor component; 7. a support frame; 8. locking the screw; 9. a circuit support group; 10. exciting a counterweight; 11. a displacement counterweight; 12. a hexagonal nut; 13. a gasket set.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1-4, a mass flow transmitter, includes dustcoat 1, and the inner wall upper end fixedly connected with draught tube subassembly 2 of dustcoat 1, the inside of dustcoat 1 is equipped with two U-shaped nest of tubes 3, and two U-shaped nest of tubes 3 all are linked together with draught tube subassembly 2 and set up, and the inboard flexion of two U-shaped nest of tubes 3 is connected with vibration exciter 4 jointly, and the both sides of two U-shaped nest of tubes 3 all are equipped with displacement sensor 5.

The platinum resistor assembly 6 is fixedly inserted on the upper side of the pipe wall of the vertical part of one U-shaped pipe assembly 3, the temperature measuring part of the platinum resistor assembly 6 is arranged inside the U-shaped pipe assembly 3, and the resistance change of the platinum resistor assembly 6 is caused by the medium temperature, so that the current change of the platinum resistor assembly 6 can be caused, and the temperature change can be directly obtained by measuring the current change.

The equal fixedly connected with of inside wall flexion of two U-shaped nest of tubes 3 supports 7 of vertical setting, and vibration exciter 4 is located the inside setting of two supports 7, and the equal common threaded connection of lateral wall of two supports 7 and vibration exciter 4 has a set of locking screw 8, through two supports 7 and locking screw 8, can be convenient for vibration exciter 4 and two U-shaped nest of tubes 3's the equipment of being connected.

The inside position that is located between two U-shaped nest of tubes 3 of dustcoat 1 is equipped with circuit support group 9, and the upper end of circuit support group 9 runs through the upper end of dustcoat 1 and the central point that the draft tube subassembly 2 put the setting in proper order, through circuit support group 9, can be convenient for concentrate the cable and draw forth to the outside, and the wiring is convenient, improves whole regularity.

One side of the vibration exciter 4 is provided with an excitation counterweight 10, the two displacement sensors 5 are both connected with a displacement counterweight 11, and the U-shaped tube group 3 can be driven to recover in an initial state and after each measurement through the displacement counterweight 11 and the excitation counterweight 10.

The rod wall of each locking screw 8 is in threaded connection with a hexagon nut 12, a washer group 13 is arranged between the side wall of each hexagon nut 12 and the side wall of the support frame 7 on the same side, each washer group 13 is movably sleeved with the rod wall of the locking screw 8 on the same side, and the tightness of connection between the support frame 7 and the locking screw 8 can be improved through the hexagon nut 12 and the washer group 13.

In this application, in the use, during the measurement, with the pipeline of draught tube subassembly 2 access volume of awaiting measuring medium, it is concentric with the pipeline of volume of awaiting measuring medium to ensure draught tube subassembly 2 during the installation, each locking piece that is used for connecting is the even atress, connect the back, the medium passes through inside draught tube subassembly 2 gets into two U-shaped nest of tubes 3, during fluid flow, the synthetic additional force that produces of 3 pipeline vibrations of two U-shaped nest of tubes and pipeline fluid flow, this power has produced the moment of torsion on U-shaped nest of tubes 3, make U-shaped nest of tubes 3 symmetry central line take place to twist reverse, detect its signal of telecommunication through displacement sensor 5 in U-shaped nest of tubes 3 both sides, handle the signal of telecommunication again, directly reachd mass flow.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. The utility model provides a mass flow transmitter, includes dustcoat (1), its characterized in that, the inner wall upper end fixedly connected with draught tube subassembly (2) of dustcoat (1), the inside of dustcoat (1) is equipped with two U-shaped nest of tubes (3), two U-shaped nest of tubes (3) all are linked together with draught tube subassembly (2) and set up, two the inboard flexion of U-shaped nest of tubes (3) is connected with vibration exciter (4), two the both sides of U-shaped nest of tubes (3) all are equipped with displacement sensor (5).

2. The mass flow transmitter according to claim 1, wherein a platinum resistor assembly (6) is fixedly inserted on the upper side of the pipe wall of the vertical part of one of the U-shaped pipe sets (3), and the temperature measuring part of the platinum resistor assembly (6) is arranged inside the U-shaped pipe set (3).

3. The mass flow transmitter according to claim 1, wherein the bent portions of the inner side walls of the two U-shaped tube sets (3) are fixedly connected with vertically arranged support frames (7), the vibration exciters (4) are arranged inside the two support frames (7), and the side walls of the two support frames (7) and the side walls of the vibration exciters (4) are jointly and threadedly connected with a set of locking screws (8).

4. A mass flow transmitter according to claim 1, wherein a line support set (9) is provided inside the housing (1) at a position between the two U-shaped tube sets (3), and the upper end of the line support set (9) is sequentially arranged to penetrate through the upper end of the housing (1) and the central position of the flow tube assembly (2).

5. A mass flow transmitter according to claim 1, characterized in that one side of the exciter (4) is provided with an excitation weight (10), and both displacement sensors (5) are connected with a displacement weight (11).

6. The mass flow transmitter of claim 3, wherein the rod wall of each locking screw (8) is in threaded connection with a hexagonal nut (12), a washer set (13) is arranged between the side wall of each hexagonal nut (12) and the side wall of the support frame (7) on the same side, and each washer set (13) is movably sleeved with the rod wall of the locking screw (8) on the same side.