CN217005922U

CN217005922U - Flowmeter junction box sealing structure and integrated electromagnetic flowmeter

Info

Publication number: CN217005922U
Application number: CN202220911562.1U
Authority: CN
Inventors: 顾建中; 马博; 陈家伟; 贺建华
Original assignee: Source Test Automation Technology Shanghai Co ltd
Current assignee: Source Test Automation Technology Shanghai Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-19
Anticipated expiration: 2032-04-19

Abstract

The utility model designs a sealing structure of a junction box of a flowmeter, which comprises a converter shell, a converter body, a sensor body and a sensor shell, wherein the converter body is arranged in the converter shell, the sensor body is arranged outside the sensor body, the sensor body is electrically connected with the converter body, and the converter shell is connected with the sensor shell in a sealing way. The utility model provides a sealing structure of a junction box of a flowmeter and an integrated electromagnetic flowmeter with the sealing structure.

Description

Flowmeter junction box sealing structure and integrated electromagnetic flowmeter

Technical Field

The utility model relates to the technical field of flowmeters and sensors, in particular to a sealing structure of a junction box of a flowmeter and an integrated electromagnetic flowmeter.

Background

With the continuous expansion of the application of electromagnetic flowmeters, the electromagnetic flowmeters are placed in deep water for use. However, in the scene, the pressure bearing capacity of the electromagnetic flowmeter is required to be continuously improved, and the sealing requirement of the junction box part is also required to be greatly improved to meet the requirement.

Fig. 1 shows a sealing structure of a junction box of a current flow meter, which is mechanically sealed in deep water, wherein an electrode lead and a coil lead in a sensor 2 'are connected with a converter in a converter housing 1' through a connecting pipe 4 ', and the converter housing is provided with a common connector 3' and two seals (mechanical sealing structures), which can also meet the requirements of deep water use, but because the requirements for machining and sealing in the scene will be increased along with the depth of water, especially in the case that a connecting pipe and a sealing ring (gasket) are used for connecting the converter housing (junction box) and the sensor of the current electromagnetic flow meter, along with the increasing of external pressure, not only the material and machining cost meeting the sealing requirements will be higher, but also the risk of leakage and seepage will be higher.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a junction box sealing structure for a deep water flowmeter and an integrated electromagnetic flowmeter, which can effectively solve the above problems, and meet the requirements of advanced equipment and processing technology required by high-end sealing structures.

The utility model provides a junction box sealing structure of a flowmeter, which comprises a converter shell, a converter body, a sensor body and a sensor shell, wherein the converter body is arranged in the converter shell, the sensor body is arranged outside the sensor body, the sensor body is electrically connected with the converter body, and the converter shell is connected with the sensor shell in a sealing manner.

In one or more embodiments, the transducer housing is welded to the end of the transducer proximate the transducer body to form a welded unitary body.

In one or more embodiments, the weld seam of the converter housing to the sensor housing is a curved surface that curves in the direction of the sensor. Wherein the weld is preferably formed by welding the bottom of the transducer housing to the top of the sensor housing.

In one or more embodiments, a watertight connector is provided on the converter housing.

In one or more embodiments, the watertight connector is at least one and is disposed at a top portion of the converter housing.

The utility model also provides an integrated electromagnetic flowmeter which comprises the flowmeter junction box sealing structure.

The utility model provides a junction box sealing structure of a flowmeter, which is characterized in that a traditional design of a mechanical sealing surface of a converter shell and a sensor is cancelled, and the converter shell is directly welded on the shell of the sensor, so that hidden dangers caused by leakage of the mechanical sealing surface are eliminated.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a sealing structure of a junction box of a mechanical seal type flowmeter for deep water in the prior art;

fig. 2 is a schematic structural diagram of the sealing structure of the junction box of the flowmeter and the integrated electromagnetic flowmeter with the same provided by the utility model.

Detailed Description

To further explain the technical means and effects of the present invention for achieving the intended purpose of the utility model, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 2, the utility model provides a flowmeter terminal box seal structure, it includes: converter shell 1, the converter body of placing in converter shell 1 to and be used for the sensor body of measuring and locate the sensor shell 3 of sensor body outside, wherein, the sensor body is connected with the converter body electricity to realize that the measured data of sensor body transmits and shows to the converter body.

This scheme is applied to various instruments that deep water electromagnetic flowmeter or shell are metal commonly used to through with converter shell 1 and the 3 whole sealing connection of sensor shell, ensure that the converter shell of this scheme design satisfies the sealed requirement of outside high-pressure medium. Specifically, converter shell 1 welds the tip that is close to the converter body on sensor shell 3 directly to make converter shell 1 and sensor shell 3 form the welding wholly jointly, through canceling traditional mechanical seal face design, eliminate or reduced the risk of leaking and seepage, improved sealed reliability, reduced the fault probability of whole set of instrument promptly.

The welding seam of the converter shell and the sensor shell is an arc surface which is bent towards the direction of the sensor. In a preferred embodiment, the welding seam 4 between the bottom of the converter shell 1 and the top of the sensor shell 3 is an arc surface bent towards the direction of the sensor 3, namely, the converter shell is manufactured by adopting a welding or stretching method and is fixed with the sensor shell of the electromagnetic flowmeter by welding, so that the structure is simple, the processing is reliable, the cost is low, and the permeation of an external medium to the inside of the converter shell can be eliminated through a pressure experiment.

Furthermore, in the sealing structure of the junction box of the flowmeter, the converter shell 1 is provided with the watertight connector 2, so that the defect that the common connector leaks in deep water is overcome. In one or more embodiments, the number of the watertight connectors 2 is at least one, and preferably, the number of the watertight connectors 2 is 2, and the watertight connectors are uniformly (but not limited to uniformly) arranged on the top of the converter housing 1.

Other technical contents and specific structures related to the sealing structure of the junction box of the flowmeter can refer to the prior art, and detailed description is omitted here.

The utility model also relates to an integrated electromagnetic flowmeter, which comprises the flowmeter junction box sealing structure. In detail, in one embodiment of the integrated electromagnetic flowmeter, the integrated electromagnetic flowmeter includes a sensor and a converter main body, and the converter main body is provided integrally with the sensor. Other technical contents and specific structures related to the sealing structure of the junction box of the flowmeter can refer to the prior art, and detailed description is omitted here.

The utility model provides a sealing structure of a junction box of a flowmeter, which is characterized in that a traditional design of a converter shell and a mechanical sealing surface of a sensor is cancelled, the converter shell is directly welded on the shell of the sensor so as to eliminate hidden troubles caused by leakage of the mechanical sealing surface, and simultaneously, a watertight connector is arranged on the converter shell so as to eliminate the defect of leakage of a common connector in deep water.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The sealing structure of the junction box of the flowmeter is characterized by comprising a converter shell (1), a converter body, a sensor body and a sensor shell (3), wherein the converter body is arranged in the converter shell (1), the sensor body is arranged outside the sensor body, the sensor body is electrically connected with the converter body, and the converter shell (1) is integrally and hermetically connected with the sensor shell (3).

2. The flowmeter junction box seal structure according to claim 1, wherein the converter housing (1) is welded to an end of the sensor housing (3) near the converter body to form a welded whole.

3. The flowmeter junction box seal structure according to claim 2, wherein the weld seam (4) of the converter housing (1) and the sensor housing (3) is an arc surface curved toward the sensor housing (3).

4. The flowmeter junction box seal structure according to claim 1, wherein a watertight connector (2) is provided on the converter housing (1).

5. The flowmeter junction box seal structure according to claim 4, wherein the watertight connector (2) is at least one and is arranged at a top of the converter case (1).

6. An integrated electromagnetic flowmeter comprising the flowmeter junction box seal structure of any one of claims 1 to 5.