CN218330168U

CN218330168U - Intermediate assembly for quickly calibrating flow meter

Info

Publication number: CN218330168U
Application number: CN202123155356.7U
Authority: CN
Inventors: 杨文明; 钱力
Original assignee: Shanghai Keyontechs Co Ltd
Current assignee: Shanghai Keyontechs Co Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-01-17
Anticipated expiration: 2031-12-15

Abstract

The utility model belongs to the technical field of the flowmeter is markd, a an intermediate assembly for flowmeter is markd fast is disclosed, an intermediate assembly for flowmeter is markd fast includes sleeve, elastic sealing element and retaining member, and the first end of sleeve is used for installing calibration device, and telescopic second end is pegged graft in getting the pressure port, and elastic sealing element sets up between getting pressure port and sleeve, and the retaining member cover is located on the sleeve, and the retaining member can be followed telescopic axis direction and removed and extrude elastic sealing element. The utility model provides an intermediate assembly for flowmeter marks fast, at the demarcation in-process, make elastic sealing element produce elastic deformation with sealed sleeve and get the space between the pressure mouth and be fixed in the sleeve with the sleeve and get in the pressure mouth, in the first end installation calibration device of sleeve, mark. After the calibration is completed, the worker only needs to disassemble the sleeve in the pressure taking port and insert the transmitter in the pressure taking port for welding and fixing.

Description

Intermediate assembly for quickly calibrating flow meter

Technical Field

The utility model relates to a flowmeter marks technical field, especially relates to an intermediate assembly for flowmeter marks fast.

Background

At present, differential pressure type flowmeters are widely applied, most of the differential pressure type flowmeters belong to non-standard flowmeters, and the non-standard flowmeters are installed after pipelines of the differential pressure type flowmeters need to be calibrated during field installation.

In the prior art, a differential pressure type flowmeter generally comprises a main pipeline and a transmitter arranged on the main pipeline, wherein the main pipeline is arranged on a pipeline on which the differential pressure type flowmeter needs to be arranged, and a pressure tapping hole connected with the transmitter is arranged on the main pipeline. During the calibration process, the calibration device for calibration is arranged at the pressure tapping opening for calibration, the calibration device is disassembled from the pressure tapping opening after calibration, and the transmitter is arranged at the pressure tapping opening. In order to make the differential pressure flowmeter work stably for a long time without leakage, the transmitter is generally fixed at the pressure tapping by welding. The utility model discloses a pressure measuring device, including pressure measuring port, calibration device, pressure measuring port, main pipeline, external screw thread, the link that calibration device and pressure measuring port are connected is provided with the external screw thread, for convenient demarcation, pressure measuring port is provided with the internal thread with calibration device accordant connection, mark the completion back, the staff need dismantle the main pipeline and carry out secondary operation to pressure measuring port and get rid of the external screw thread, make pressure measuring port be suitable for and insert and weld the changer, install the main pipeline again, peg graft the changer in pressure measuring port and welded fastening, thereby it is loaded down with trivial details with the installation to lead to the demarcation and the installation of differential pressure formula flowmeter, and then make staff work efficiency low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intermediate assembly for flowmeter marks fast enables calibration device to peg graft and mark in not being provided with the internal screw thread and getting the pressure mouth.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an intermediate assembly for flowmeter marks fast, can be fixed in the main part pipeline of differential pressure formula flowmeter not be provided with the internal thread get in the pressure mouth for the intermediate assembly that flowmeter marks fast includes:

the first end of the sleeve is used for installing a calibration device, and the second end of the sleeve is inserted into the pressure taking port;

the elastic sealing element is arranged between the pressure taking port and the sleeve and can generate elastic deformation to seal a gap between the sleeve and the pressure taking port and fix the sleeve in the pressure taking port;

retaining member, retaining member cover are located on the sleeve, and the retaining member can remove and extrude elastic sealing member along telescopic axis direction, makes elastic sealing member produce elastic deformation.

Optionally, the elastic sealing element comprises at least one sealing ring, and the sealing ring is sleeved on the second end of the sleeve.

Optionally, the second end outer side wall of the sleeve extends outwards along the circumferential direction to form a protrusion, and the sealing ring is arranged on the protrusion.

Optionally, the retaining member is the notch cuttype structure, and the retaining member includes first step portion and second step portion, is provided with the portion of twisting that is used for revolving to twist the retaining member in the first step portion, and second step portion sets up towards the sealing washer, and second step portion is used for the extrusion sealing washer.

Optionally, the end surface of the second step portion extends outwards to form a third step portion, the outer side surface of the third step portion is inclined inwards to form a cone, the third step portion is inserted between the seal ring and the sleeve, and the outer side surface of the third step portion can extrude the inner side surface of the seal ring.

Optionally, the resilient seal comprises 3 sealing rings.

Optionally, the sealing ring is made of PTFE.

Optionally, a first through hole is formed in the first end of the sleeve, and an internal thread connected with the calibration device in a matching manner is arranged in the first through hole.

Optionally, the retaining member has been seted up the second through-hole, is provided with the internal thread in the second through-hole, be provided with on the sleeve lateral wall with the internal thread accordant connection's in the second through-hole external screw thread, retaining member and sleeve threaded connection.

Optionally, the first end of the sleeve is square or regular hexagonal in cross-section.

The utility model has the advantages that:

the utility model provides an intermediate assembly for flowmeter is markd fast is at the demarcation in-process, and the sleeve second end is pegged graft in not being provided with the internal screw thread and is got in the pressure port to make elastic sealing element produce elastic deformation with sealed sleeve and get the space between the pressure port and be fixed in the sleeve and get in the pressure port through the retaining member, in the installation calibration device of the first end of sleeve, and then will mark the device and install and mark on getting the pressure port. After the completion of demarcation, the staff only need with the sleeve dismantle in getting the pressure port to peg graft the changer and can accomplish the field installation in getting the interior welded fastening of pressure port, whole process is convenient simple, this an intermediate assembly for quick demarcation of flowmeter effectively improves staff's work efficiency.

Drawings

FIG. 1 is a schematic view of an installation of an intermediate assembly for rapid calibration of a flow meter according to the present invention;

FIG. 2 is a flow meter according to the present invention the structural diagram of the intermediate component for quick calibration;

fig. 3 is a cross-sectional view of an intermediate assembly for fast calibration of a flow meter according to the present invention.

In the figure:

100. a sleeve; 110. a protrusion; 120. a first through hole;

200. a seal ring;

300. a locking member; 310. a first step portion; 320. a second step section; 330. a third step portion; 340. a second through hole;

400. a main body duct; 410. and a pressure taking port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Referring to fig. 1, a differential pressure type flowmeter generally includes a main pipe 400 and a transmitter (transmitter not shown in the figure) installed on the main pipe 400, the main pipe 400 is installed on a pipe where the differential pressure type flowmeter needs to be installed, a pressure tapping port 410 connected with the transmitter is arranged on the main pipe 400, the differential pressure type flowmeter needs to be installed on a site, the main pipe 400 needs to be installed on the pipe where the differential pressure type flowmeter needs to be installed, a calibration device (calibration device not shown in the figure) is installed at the pressure tapping port 410 of the main pipe 400 for calibration, after calibration is completed, the calibration device is detached, the transmitter is welded at the pressure tapping port 410, a calibration result is transmitted to the transmitter, and the site installation work of the differential pressure type flowmeter is completed.

With continued reference to fig. 1, the present embodiment provides an intermediate assembly for fast calibration of a flow meter, which can be fixed in a pressure tapping port 410, which is not provided with internal threads, of a main pipe 400 of a differential pressure type flow meter, and mount a calibration device at the pressure tapping port 410, which is not provided with internal threads, through the intermediate assembly for fast calibration of a flow meter. The middle assembly for fast calibration of the flowmeter comprises a sleeve 100, an elastic sealing element and a locking element 300, wherein a first end of the sleeve 100 is used for installing a calibration device, a second end of the sleeve 100 is inserted into a pressure tapping port 410, the elastic sealing element is arranged between the pressure tapping port 410 and the sleeve 100, and the elastic sealing element can generate elastic deformation to seal a gap between the sleeve 100 and the pressure tapping port 410 and fix the sleeve 100 in the pressure tapping port 410; the locking member 300 is sleeved on the sleeve 100, and the locking member 300 can move along the axial direction of the sleeve 100 and press the elastic sealing member, so that the elastic sealing member is elastically deformed.

In the calibration process, the second end of the sleeve 100 is inserted into the pressure tapping port 410 without internal threads, the elastic sealing element is elastically deformed by the locking element 300 to seal the gap between the sleeve 100 and the pressure tapping port 410 and fix the sleeve 100 in the pressure tapping port 410, the calibration device is installed at the first end of the sleeve 100, and then the calibration device is installed on the pressure tapping port 410 for calibration. After the calibration is completed, a worker only needs to disassemble the sleeve 100 in the pressure tapping 410 and insert the transmitter into the pressure tapping 410 to be welded and fixed so as to complete field installation, the whole process is convenient and simple, and the intermediate component for rapidly calibrating the flowmeter effectively improves the working efficiency of the worker.

In this embodiment, referring to fig. 2 to 3, the elastic sealing element includes at least one sealing ring 200, and the sealing ring 200 is sleeved on the second end of the sleeve 100. In this embodiment, the locker 300 moves in the axial direction of the sleeve 100 and presses the packing 200, so that the packing 200 is elastically deformed, thereby sealing the gap between the sleeve 100 and the pressure tap 410 and fixing the sleeve 100 in the pressure tap 410 by the frictional force between the packing 200 and the pressure tap 410. Further, the elastic sealing element may be another elastic element, which is not described in detail herein.

Preferably, the material of the sealing ring 200 is PTFE, and the sealing performance of the sealing ring 200 made of PTFE is good. Further, the material of the sealing ring 200 may also be other materials, which are not described in detail herein.

Further, too many or too few sealing rings 200 affect the sealing between the sleeve 100 and the pressure tapping port 410, and preferably, the elastic sealing member includes 3 sealing rings 200.

In this embodiment, as shown in fig. 2 to 3, the second end outer side wall of the sleeve 100 is provided with a protrusion 110 extending outward in the circumferential direction, and the sealing ring 200 is disposed on the protrusion 110. In this embodiment, locking member 300 moves engaging protrusion 110 along the axial direction of sleeve 100 to press sealing ring 200 together, so that sealing ring 200 is elastically deformed to seal the gap between sleeve 100 and pressure tapping port 410 and fix sleeve 100 in pressure tapping port 410. In addition, when the sleeve 100 is taken out from the pressure taking port 410, the sealing ring 200 is driven by the protrusion 110 to be taken out together, so that the operation is convenient.

The connecting end that calibration device and sleeve 100 are connected is provided with the external screw thread, and further, first through-hole 120 has been seted up to the first end of sleeve 100, is provided with the internal screw thread with calibration device accordant connection in the first through-hole 120. In the present embodiment, the first through hole 120 is communicated with the pressure tapping port 410, and the calibration device is fixed to the sleeve 100 by a threaded connection. Further, a sealing rubber pad may be disposed between the calibration device and the first through hole 120, and the calibration device and the first through hole 120 are sealed by the sealing rubber pad. Further, the calibration device and the first through hole 120 may be sealed in other manners, which is not described in detail herein.

Further, the cross section of the first end of the sleeve 100 is square or regular hexagon, which is convenient for the wrench to clamp and connect, and further convenient for the calibration device to be installed. Further, the cross-section of the first end of the sleeve 100 may have other shapes, which will not be described in detail herein.

In this embodiment, as shown in fig. 2 to fig. 3, the locking member 300 is provided with a second through hole 340, an internal thread is provided in the second through hole 340, an external thread matching with the internal thread in the second through hole 340 is provided on the outer sidewall of the sleeve 100, and the locking member 300 is in threaded connection with the sleeve 100. In the present embodiment, the movement of the locker 300 in the axial direction of the sleeve 100 is achieved by screwing the locker 300, and the structure is simple and the operation is convenient.

Further, locker 300 is of a stepped structure, locker 300 includes a first stepped portion 310 and a second stepped portion 320, a screwing portion for screwing locker 300 is provided on first stepped portion 310, second stepped portion 320 is provided toward sealing ring 200, and second stepped portion 320 is used to press sealing ring 200. Specifically, the cross section of the screwing part is square or regular hexagon, so that the wrench can conveniently clamp and connect, and further the locking member 300 can conveniently screw. Further, the screwing part can be in other forms, and detailed description is omitted. In this embodiment, one wrench is used to clamp the first end of the sleeve 100, and the other wrench is used to screw the locking member 300, so that the end surface of the second step portion 320 is attached to the end surface of the sealing ring 200 facing the end of the second step portion 320, and the protrusion 110 is used to press the sealing ring 200, so that the sealing ring 200 is elastically deformed to seal the gap between the sleeve 100 and the pressure tapping 410, and the sleeve 100 is fixed in the pressure tapping 410.

Further, the end surface of the second step portion 320 extends outward to form a third step portion 330, the outer side surface of the third step portion 330 is tapered inward, the third step portion 330 is inserted between the seal ring 200 and the sleeve 100, and the outer side surface of the third step portion 330 can press the inner side surface of the seal ring 200. In the present embodiment, when the locking member 300 is screwed, the outer side surface of the third step portion 330 presses the inner side surface of the gasket 200 while the third step portion 330 moves toward the gasket 200 along the axial direction of the sleeve 100, so that the gasket 200 is expanded, the outer side wall of the gasket 200 is tightly attached to the inner side wall of the pressure tapping port 410, and the second step portion 320 and the protrusion 110 are matched to press the gasket 200 together, thereby more effectively sealing the gap between the sleeve 100 and the pressure tapping port 410, and more firmly fixing the sleeve 100 in the pressure tapping port 410.

Illustratively, the sleeve 100 is inserted into the pressure taking port 410 which is not provided with the internal thread, the first end of the sleeve 100 is clamped by one wrench, the locking member 300 is screwed by the other wrench, the locking member 300 is pressed towards the sealing ring 200, the outer side surface of the third step part 330 of the locking member 300 presses the inner side surface of the sealing ring 200, the sealing ring 200 is spread, the outer side wall of the sealing ring 200 is tightly attached to the inner side wall of the pressure taking port 410, the locking member 300 is further screwed, the end surface of the second step part 320 of the locking member 300 presses the sealing ring 200 onto the protrusion 110, and fixing and sealing between the sleeve 100 and the pressure taking port 410 are realized. And a calibration device is arranged on the pressure tapping port 410 for calibration. In addition, when the packing 200 is damaged during use, the locker 300 is reversely unscrewed to be separated from the coupling sleeve 100, and the packing 200 is removed and replaced to ensure sealability. After the calibration is completed, the calibration device and the intermediate component for rapidly calibrating the flowmeter are disassembled, the transmitter is inserted into the pressure taking port 410 and welded and fixed, the field installation work is completed, the whole process is convenient and simple, and the intermediate component for rapidly calibrating the flowmeter effectively improves the working efficiency of workers.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An intermediate assembly for rapid calibration of a flowmeter, which can be fixed in a pressure tapping port (410) of a main pipeline (400) of a differential pressure flowmeter, wherein the pressure tapping port is not provided with internal threads, and the intermediate assembly for rapid calibration of a flowmeter comprises:

the sleeve (100), a first end of the sleeve (100) is used for installing a calibration device, and a second end of the sleeve (100) is inserted into the pressure taking port (410);

the elastic sealing element is arranged between the pressure taking port (410) and the sleeve (100), and can generate elastic deformation to seal a gap between the sleeve (100) and the pressure taking port (410) and fix the sleeve (100) in the pressure taking port (410);

retaining member (300), retaining member (300) cover is located on sleeve (100), just retaining member (300) can be followed the axis direction of sleeve (100) removes and extrudes elastic sealing element makes elastic sealing element produces elastic deformation.

2. Intermediate assembly for the rapid calibration of a flowmeter according to claim 1, wherein said elastic seal comprises at least one sealing ring (200), said sealing ring (200) being fitted on the second end of said sleeve (100).

3. The intermediate assembly for flowmeter quick calibration according to claim 2, wherein the second end outer side wall of the sleeve (100) is provided with a protrusion (110) extending outwards in the circumferential direction, and the seal ring (200) is placed on the protrusion (110).

4. The intermediate assembly for flowmeter quick calibration according to claim 3, wherein the retaining member (300) is of a stepped structure, the retaining member (300) comprises a first stepped portion (310) and a second stepped portion (320), a screwing portion for screwing the retaining member (300) is provided on the first stepped portion (310), the second stepped portion (320) is provided toward the seal ring (200), and the second stepped portion (320) is used for pressing the seal ring (200).

5. The intermediate assembly for the rapid calibration of a flowmeter according to claim 4, wherein a third step portion (330) extends outwards from the end surface of the second step portion (320), the outer side surface of the third step portion (330) is tapered inwards, the third step portion (330) is inserted between the seal ring (200) and the sleeve (100), and the outer side surface of the third step portion (330) can press the inner side surface of the seal ring (200).

6. Intermediate assembly for the rapid calibration of a flowmeter according to claim 2, characterized in that said elastic seal comprises 3 said sealing rings (200).

7. Intermediate component for the rapid calibration of a flowmeter according to claim 2, wherein the sealing ring (200) is made of PTFE.

8. The intermediate assembly for fast calibration of a flowmeter according to claim 1, wherein the first end of the sleeve (100) is provided with a first through hole (120), and an internal thread for matching connection with the calibration device is arranged in the first through hole (120).

9. The intermediate assembly for fast calibration of a flowmeter according to claim 1, wherein the retaining member (300) defines a second through hole (340), an internal thread is disposed in the second through hole (340), an external thread that is coupled to the internal thread in the second through hole (340) is disposed on an outer sidewall of the sleeve (100), and the retaining member (300) is threadedly coupled to the sleeve (100).

10. Intermediate assembly for the rapid calibration of a flowmeter according to claim 1, wherein the first end of the sleeve (100) has a square or regular hexagonal cross-section.