Transmitter connecting structure of anti-vibration vortex shedding flowmeter

Abstract

The utility model relates to the technical field of flowmeter connecting structures, in particular to an anti-vibration vortex shedding flowmeter transmitter connecting structure, which reduces the influence of bracket vibration on the normal use of a sensor through separated installation of a bracket fixing structure and a sensor fixing structure. The influence of the external environment on the internal sensor is reduced through the sealing structure, the vibration amplitude of the shell is monitored through the detection device, and the practicability of the device is improved; comprising a shell, flanges, a vortex generator, a transmitter and a supporting rod, the flanges are installed on the left end face and the right end face of the shell respectively, the vortex generator is vertically installed in the shell, and the lower portion of the transmitter is connected with the upper portion of the shell through the supporting rod; the device further comprises a support fixing structure, a sensor fixing structure, a sealing structure and a detection device, the support fixing structure is installed on the shell, the sensor fixing structure is installed on the shell, the sealing structure is installed on the support fixing structure, and the detection device is installed on the lower portion of the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of flowmeter connection structures, in particular to a vibration-resistant vortex flowmeter transmitter connection structure. Background Art

[0002] Vortex flowmeter is a volume flowmeter that measures the volume flow rate of gas, steam or liquid, the volume flow rate under standard conditions or the mass flow rate based on the Karman vortex principle. It is mainly used for flow measurement of industrial pipeline medium fluid, such as gas, liquid, steam and other media; most vortex flowmeters work in a vibrating state. When the pipeline vibrates, it is equivalent to applying a force on the transmitter. The entire flowmeter structure is equivalent to a cantilever beam mechanism with one end fixed. The distance from the transmitter to the bracket is L. The longer L is, the greater the force transmitted from the transmitter to the bracket holder. The bracket holder and the sensor holder are rigidly connected. The force exerted on the bracket holder will be transmitted to the sensor holder and then to the sensor. Vibration has a huge impact on the normal use of the vortex flowmeter. Vibration resistance is one of the most fundamental properties that determine whether the vortex flowmeter is usable.

[0003] In the prior art, the Chinese utility model patent application number CN202310672339.5 involves a seismic-resistant structure of a vortex flowmeter, including a housing, a connecting flange, a vortex generator, a sensor, a flow meter, a clamping seat, a telescopic rod and a top block, etc., which can greatly reduce the impact of vibration and increase the service life, thereby solving the problem that the existing device has poor lateral vibration buffering and is prone to damage to the flowmeter sensor after long-term use.

[0004] However, the above device has a complex structure and is difficult to maintain in actual use. At the same time, the device involves multiple components, which increases the cost of the device. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a vibration-resistant vortex flowmeter transmitter connection structure that is installed separately by a bracket fixing structure and a sensor fixing structure, reduces the influence of the bracket vibration on the normal use of the sensor, reduces the influence of the external environment on the internal sensor through a sealing structure, monitors the vibration amplitude of the shell through a detection device, and improves the practicality of the device.

[0006] The utility model discloses a vibration-resistant vortex flowmeter transmitter connection structure, including a shell, a flange, a vortex generator, a transmitter and a support rod, a set of flanges are respectively installed on the left and right end surfaces of the shell, a vortex generator is vertically installed in the shell, and the lower part of the transmitter is connected to the upper part of the shell through the support rod; it also includes a bracket fixing structure, a sensor fixing structure, a sealing structure and a detection device, the bracket fixing structure is installed on the shell, the sensor fixing device is installed on the shell, the sealing structure is installed on the bracket fixing structure, and the detection device is installed at the lower part of the shell; by separately installing the bracket fixing structure and the sensor fixing structure, the influence of the bracket vibration on the normal use of the sensor is reduced, the sealing structure is reduced by the external environment The impact of the internal sensor is reduced, the vibration amplitude of the shell is monitored by the detection device, and the practicality of the device is improved.

[0007] Preferably, the bracket fixing structure includes a square tube, a supporting steel plate, a sealing cover and a sealing steel plate. The square tube is welded to the middle part of the upper end face of the outer shell, the supporting steel plate is connected to the upper end face of the square tube by welding, the lower end face of the support rod is connected with a sealing cover, the lower end face of the sealing cover is connected with a sealing steel plate, and multiple groups of bolt holes are respectively provided at corresponding positions of the supporting steel plate and the sealing steel plate, and the supporting steel plate and the sealing steel plate are connected and fixed by bolts; the square tube and the supporting steel plate are used to reduce the raw material cost of the device and facilitate installation and connection; the internal sensor structure is sealed and covered by the square tube and the sealing cover, thereby reducing the impact of the external environment on the internal sensor and improving the practicality of the device.

[0008] Preferably, the sensor fixing structure includes a fixing tube, an external thread and a mounting hole. The mounting hole is provided on the upper end face of the shell, and the mounting hole is located in the area between the vortex generator and the water outlet of the shell. The fixing tube is connected to the upper end face of the shell by welding, and the mounting hole is located in the middle of the fixing tube. The upper part of the fixing tube is provided with an external thread; the fixing tube provides installation support for the sensor structure, and the external thread facilitates the installation of the sensor. The sensor is inserted into the interior of the shell through the mounting hole for monitoring, thereby improving the practicality of the device.

[0009] Preferably, the sealing structure includes a sealing groove and a sealing rubber ring, and a group of sealing grooves are correspondingly arranged on the upper end surface of the supporting steel plate and the lower end surface of the sealing steel plate, and the sealing rubber ring is placed inside the sealing groove; the sealing groove and the sealing rubber ring are used to improve the sealing between the supporting steel plate and the sealing steel plate, reduce the impact of the external environment on the inside of the other tube, and improve the practicality of the device.

[0010] Preferably, it further comprises reinforcing plates, and multiple groups of reinforcing plates are respectively installed on the sides of the sealing cover; the multiple groups of reinforcing plates improve the overall strength of the sealing cover and the stability of the device.

[0011] Preferably, the detection device includes a mounting base, a vibration sensor, a rubber column and a PLC controller. The mounting base is installed at the lower part of the shell, the vibration sensor is installed on the lower end surface of the mounting base, and the lower end surface of the mounting base is connected to the upper end surface of the PLC controller through multiple groups of rubber columns; the vibration amplitude of the shell is monitored by the vibration sensor, and the data is transmitted to the PLC controller for recording. The multiple groups of rubber columns are used to reduce the impact of the shell's own vibration on the normal use of the PLC controller, thereby improving the practicality of the device.

[0012] Preferably, an alarm light is also included, and an alarm light is installed on the side of the square tube; when the vibration intensity of the shell reaches the maximum preset value, the PLC controller controls the alarm light to turn on, prompting the operator to carry out maintenance in time, thereby improving the protection and practicality of the device.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by separately installing the bracket fixing structure and the sensor fixing structure, the influence of the bracket vibration on the normal use of the sensor is reduced; the sealing structure reduces the influence of the external environment on the internal sensor; and the detection device monitors the vibration amplitude of the shell, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first axonometric structural diagram of the present invention;

[0015] Figure 2 This is a second axonometric structural diagram of the present invention;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Markings in the accompanying drawings: 1. Housing; 2. Flange; 3. Vortex generator; 4. Transmitter; 5. Support rod; 6. Square tube; 7. Support steel plate; 8. Sealing cover; 9. Sealing steel plate; 10. Fixed tube; 11. External thread; 12. Mounting hole; 13. Sealing groove; 14. Sealing rubber ring; 15. Reinforcement plate; 16. Mounting seat; 17. Vibration sensor; 18. Rubber column; 19. PLC controller; 20. Alarm light. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention. Example

[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The bracket fixing structure and the sensor fixing structure are both installed on the upper part of the housing 1, the sealing structure is installed on the bracket fixing structure, and the detection device is installed on the lower part of the housing 1;

[0021] First, the housing 1 is connected to the pipeline through the flange 2, the position of the sensor is fixed through the external thread 11, and then the position of the transmitter 4 is fixed by bolts. Then, during use, the vibration amplitude of the housing 1 is monitored by the vibration sensor 17, and the data is transmitted to the PLC controller 19 for recording. When the vibration intensity of the housing 1 reaches the maximum preset value, the PLC controller 19 controls the alarm light 20 to turn on, prompting the operator to promptly perform maintenance.

[0022] The bracket fixing structure includes a square tube 6, a support steel plate 7, a sealing cover 8 and a sealing steel plate 9. The square tube 6 is welded to the middle part of the upper end surface of the shell 1. The support steel plate 7 is connected to the upper end surface of the square tube 6 by welding. The sealing cover 8 is connected to the lower end surface of the support rod 5. The sealing cover 8 is connected to the lower end surface of the sealing cover 8. A plurality of groups of bolt holes are respectively provided at corresponding positions on the support steel plate 7 and the sealing steel plate 9. The support steel plate 7 and the sealing steel plate 9 are connected and fixed by bolts.

[0023] The sensor fixing structure includes a fixing tube 10, an external thread 11 and a mounting hole 12. The mounting hole 12 is provided on the upper end surface of the housing 1. The mounting hole 12 is located in the area between the vortex generator 3 and the water outlet of the housing 1. The fixing tube 10 is connected to the upper end surface of the housing 1 by welding. The mounting hole 12 is located in the middle of the fixing tube 10. The upper portion of the fixing tube 10 is provided with an external thread 11.

[0024] The sealing structure includes a sealing groove 13 and a sealing rubber ring 14. A set of sealing grooves 13 are correspondingly provided on the upper end surface of the supporting steel plate 7 and the lower end surface of the sealing steel plate 9. The sealing rubber ring 14 is placed inside the sealing groove 13.

[0025] It also includes a reinforcement plate 15, and multiple groups of reinforcement plates 15 are respectively installed on the side surfaces of the sealing cover 8;

[0026] The detection device includes a mounting base 16, a vibration sensor 17, a rubber column 18 and a PLC controller 19. The mounting base 16 is installed at the lower part of the housing 1, and the vibration sensor 17 is installed on the lower end surface of the mounting base 16. The lower end surface of the mounting base 16 is connected to the upper end surface of the PLC controller 19 through multiple groups of rubber columns 18;

[0027] By installing the bracket fixing structure and the sensor fixing structure separately, the influence of the bracket vibration on the normal use of the sensor is reduced, the sealing structure is used to reduce the influence of the external environment on the internal sensor, and the vibration amplitude of the shell 1 is monitored by the detection device, thereby improving the practicality of the device.

[0028] The alarm light 20, vibration sensor 17 and PLC controller 19 of the vibration-resistant vortex flowmeter transmitter connection structure of the utility model are purchased on the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative work.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vibration-resistant vortex flowmeter transmitter connection structure, comprising a housing (1), a flange (2), a vortex generator (3), a transmitter (4) and a support rod (5), wherein a set of flanges (2) are respectively installed on the left and right end surfaces of the housing (1), the vortex generator (3) is vertically installed in the housing (1), and the lower part of the transmitter (4) is connected to the upper part of the housing (1) through the support rod (5); characterized in that: It also includes a bracket fixing structure, a sensor fixing structure, a sealing structure and a detection device, wherein the bracket fixing structure is mounted on the housing (1), the sensor fixing device is mounted on the housing (1), the sealing structure is mounted on the bracket fixing structure, and the detection device is mounted on the lower part of the housing (1).

2. A vibration-resistant vortex flowmeter transmitter connection structure as claimed in claim 1, characterized in that: The bracket fixing structure comprises a square tube (6), a supporting steel plate (7), a sealing cover (8) and a sealing steel plate (9); the square tube (6) is welded to the middle part of the upper end surface of the housing (1); the supporting steel plate (7) is connected to the upper end surface of the square tube (6) by welding; the sealing cover (8) is connected to the lower end surface of the supporting rod (5); the sealing cover (8) is connected to the lower end surface of the sealing cover (8); a plurality of groups of bolt holes are respectively arranged at corresponding positions on the supporting steel plate (7) and the sealing steel plate (9); the supporting steel plate (7) and the sealing steel plate (9) are connected and fixed by bolts.

3. The vibration-resistant vortex flowmeter transmitter connection structure according to claim 1, characterized in that: The sensor fixing structure comprises a fixing tube (10), an external thread (11) and a mounting hole (12); the mounting hole (12) is arranged on the upper end surface of the housing (1); the mounting hole (12) is located in the area between the vortex generator (3) and the water outlet of the housing (1); the fixing tube (10) is connected to the upper end surface of the housing (1) by welding; the mounting hole (12) is located in the middle of the fixing tube (10); and the upper part of the fixing tube (10) is provided with an external thread (11).

4. A vibration-resistant vortex flowmeter transmitter connection structure as claimed in claim 3, characterized in that: The sealing structure comprises a sealing groove (13) and a sealing rubber ring (14); a group of sealing grooves (13) are correspondingly arranged on the upper end surface of the supporting steel plate (7) and the lower end surface of the sealing steel plate (9); and the sealing rubber ring (14) is placed inside the sealing groove (13).

5. The vibration-resistant vortex flowmeter transmitter connection structure according to claim 2, characterized in that: It also includes reinforcing plates (15), and a plurality of groups of reinforcing plates (15) are respectively installed on the side surfaces of the sealing cover (8).

6. The vibration-resistant vortex flowmeter transmitter connection structure according to claim 1, characterized in that: The detection device comprises a mounting seat (16), a vibration sensor (17), a rubber column (18) and a PLC controller (19); the mounting seat (16) is mounted on the lower part of the housing (1); the vibration sensor (17) is mounted on the lower end surface of the mounting seat (16); and the lower end surface of the mounting seat (16) is connected to the upper end surface of the PLC controller (19) via a plurality of groups of rubber columns (18).

7. The vibration-resistant vortex flowmeter transmitter connection structure according to claim 2, characterized in that: It also includes a warning light (20), which is installed on the side of the square tube (6).

Images