Auxiliary device for mounting and dismounting flowmeter

Abstract

The utility model provides an auxiliary device for mounting and dismounting a flowmeter, which comprises a flowmeter, a flowmeter expansion piece, a flange matched with the flowmeter and the flowmeter expansion piece and a flange lifting device, the flange is positioned at the top of the flange lifting device, the flange is connected with the flowmeter expansion piece, and the flowmeter expansion piece is connected with the flange lifting device. And the flow meter is connected with the flange. Flanges with different calibers are selected, the flanges are lifted to the position of the flowmeter needing to be installed through the flange lifting device, and flowmeters with different meter lengths and different calibers can be installed more conveniently through cooperation of the auxiliary device and the flowmeter expansion piece. The flow meter is convenient to disassemble and assemble, the verification regulation requirement is met, the use range of the expansion piece is expanded, and the adaptability of flow meter installation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas metering equipment technical field especially relates to a kind of installation and dismounting flowmeter auxiliary device. BACKGROUND

[0002] With the rapid development of natural gas industry, the use of natural gas in China presents a rapid growth trend. As a natural gas flow metering measuring device, the use of high-pressure large-diameter natural gas flow meter is increasing year by year. In order to ensure the accuracy of flow meter measurement, according to the verification regulation, the flow meter needs to be sent to the legal metrological verification organization for verification periodically. The length of the straight pipe section before and after the installation of the flow meter needs to be installed according to the verification regulation. Due to the inconsistent length of each flow meter and the limited range of use of the extender, the existing technology usually replaces different straight pipe sections to make the straight pipe sections before and after the flow meter meet the verification regulation requirements. The adaptability is low. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a kind of installation and dismounting flowmeter auxiliary device for the deficiencies of the prior art.

[0004] The technical solution for solving the above technical problem of the utility model is as follows: a kind of installation and dismounting flowmeter auxiliary device, comprising: flow meter, flow meter extender, flange matched with flow meter and flow meter extender and flange lifting device, the flange is located at the top of the flange lifting device, the flange is connected with the flow meter extender, and the flow meter is connected with the flange.

[0005] The beneficial effects of the technical solution of the utility model are: by selecting flanges of different diameters, the flanges are lifted to the flow meters to be installed by the flange lifting device, and the auxiliary device is matched with the flow meter extender to achieve more convenient installation of flow meters of different lengths and different diameters. It is convenient to dismount and install flow meter, meets the verification regulation requirements, expands the use range of extender, and improves the adaptability of flow meter installation.

[0006] Further, the flange is an RTJ flange.

[0007] The beneficial effects of the above further technical solution are: the main feature of the RTJ flange is that its sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also known as ring pad or ring connecting gasket) matched therewith are used to realize sealing. While ensuring good sealing, the length of the flow meter is increased, and the adjustable margin of the extender when installing the flow meter is improved.

[0008] Further, the flange is provided with a trapezoidal groove.

[0009] The beneficial effect of the further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also known as a ring gasket or a ring connecting gasket) matched with the trapezoidal groove are used to realize sealing. While ensuring good sealing, the length of the flow meter is increased, and the adjustable allowance of the flow meter extender during installation is improved.

[0010] Further, the flange is provided with an octagonal metal ring matched with the trapezoidal groove.

[0011] The beneficial effect of the further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also known as a ring gasket or a ring connecting gasket) matched with the trapezoidal groove are used to realize sealing. While ensuring good sealing, the length of the flow meter is increased, and the adjustable allowance of the flow meter extender during installation is improved.

[0012] Further, the flange is provided with an elliptical metal ring matched with the trapezoidal groove.

[0013] The beneficial effect of the further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also known as a ring gasket or a ring connecting gasket) matched with the trapezoidal groove are used to realize sealing. While ensuring good sealing, the length of the flow meter is increased, and the adjustable allowance of the flow meter extender during installation is improved.

[0014] Further, the flow meter extender and the flow meter are both connected with a straight pipe section.

[0015] The beneficial effect of the further technical scheme is that the flow meter is convenient to communicate with the straight pipe section.

[0016] Further, the two ends of the flange correspond to the flow meter and the flow meter extender respectively.

[0017] The beneficial effect of the further technical scheme is that the two ends of the flange are respectively connected with the flow meter and the flow meter extender, and the installation and disassembly of the flow meter are facilitated.

[0018] Further, the flange lifting device comprises a support and a support frame, and the support frame is installed on the support.

[0019] The beneficial effect of the further technical scheme is that the support and the support frame are provided, the flange is convenient to lift, and the installation and disassembly of the flange are facilitated.

[0020] Further, the support frame comprises a rod body and a circular arc rod, the rod body is vertically installed on the support, the circular arc rod is installed on the top of the rod body, and the circular arc rod is matched with the flange.

[0021] The beneficial effect of adopting the above-mentioned further technical solution is that the setting of the rod and the arc rod facilitates the support frame to provide stable support for the flange.

[0022] Furthermore, the flange can be a plurality of flanges of different diameters, and the flow meter is a natural gas flow meter.

[0023] The beneficial effect of adopting the above-mentioned further technical solution is that it facilitates the selection of flanges of different diameters for installation according to different flow meters.

[0024] The advantages of this invention in its additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Fig. 1 A schematic diagram of the structure of the auxiliary device for installing and disassembling the flow meter provided in the embodiment of this utility model.

[0026] Fig. 2 A schematic diagram of the flange provided in an embodiment of this utility model.

[0027] Fig. 3 This is a schematic diagram of the flange lifting device provided in an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached diagram: 1. Flow meter; 2. Flow meter expansion joint; 3. Flange; 4. Flange support device; 5. Support; 6. Support frame; 7. Rod; 8. Arc rod; 9. Straight pipe section; 10. First flange head; 11. Second flange head; 12. Gasket. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0030] like Figs. 1-3 As shown, this utility model embodiment provides an auxiliary device for installing and disassembling a flow meter, including: a flow meter 1, a flow meter expansion joint 2, a flange 3 adapted to the flow meter 1 and the flow meter expansion joint 2, and a flange lifting device 4. The flange 3 is located on top of the flange lifting device 4, the flange 3 is connected to the flow meter expansion joint 2, and the flow meter 1 is connected to the flange 3.

[0031] The beneficial effect of the technical scheme of the utility model is: through selecting different caliber flanges, the flanges are lifted to the flow meter to be installed through the flange lifting device, through the cooperation of the auxiliary device and the flow meter extender, the flow meter of different length and different caliber is more conveniently installed.

[0032] In order to expand the use range of the extender (flow meter extender) and improve the adaptability of the flow meter installation, the utility model discloses an installation and dismounting flow meter auxiliary device, which can be used for installation and dismounting large-caliber flow meters, and has the advantages of convenient flow meter dismounting and installation and improved flow meter installation adaptability.

[0033] As shown in Figs. 1-3 Further, the flange 3 is an RTJ flange.

[0034] The beneficial effect of the above further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also called ring gasket or ring connecting gasket) matched with the trapezoidal groove are used to realize sealing.

[0035] As shown in Figs. 1-3 The flange comprises a first flange head 10, a second flange head 11 and a gasket 12, the first flange head 10 and the second flange head 11 are provided with flange faces at one end, the first flange head 10 and the second flange head 11 are butted through the flange faces, and the gasket 12 is located between the flange face of the first flange head 10 and the flange face of the second flange head 11.

[0036] Further, the flange 3 is provided with a trapezoidal groove.

[0037] The beneficial effect of the above further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and a trapezoidal groove and an octagonal or elliptical metal ring (also called ring gasket or ring connecting gasket) matched with the trapezoidal groove are used to realize sealing.

[0038] Further, the flange 3 is provided with an octagonal metal ring matched with the trapezoidal groove.

[0039] The beneficial effect of the further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and the trapezoidal groove and the matching octagonal metal ring (also known as ring gasket or ring connecting gasket) are used to realize sealing. While ensuring good sealing, the length of the flowmeter is increased, and the adjustable allowance of the flowmeter expander during installation is improved.

[0040] Further, the flange 3 is provided with an oval metal ring matched with the trapezoidal groove.

[0041] The beneficial effect of the further technical scheme is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, and the trapezoidal groove and the matching octagonal metal ring (also known as ring gasket or ring connecting gasket) are used to realize sealing. While ensuring good sealing, the length of the flowmeter is increased, and the adjustable allowance of the flowmeter expander during installation is improved.

[0042] As shown in Figs. 1-3 Further, the flowmeter expander 2 and the flowmeter 1 are connected with the straight pipe section 9.

[0043] The beneficial effect of the further technical scheme is that the flowmeter is convenient to communicate with the straight pipe section.

[0044] The user can select the installation position of the flange according to actual needs, for example, the flowmeter expander can be installed on one straight pipe section, the flange is installed on another straight pipe section, and then the two ends of the flowmeter are connected with the flowmeter expander and the flange respectively.

[0045] As shown in Figs. 1-3 Further, the two ends of the flange 3 are matched with the flowmeter 1 and the flowmeter expander 2 respectively.

[0046] The beneficial effect of the further technical scheme is that the two ends of the flange are convenient to be connected with the flowmeter and the flowmeter expander respectively, and the installation and disassembly of the flowmeter are facilitated.

[0047] As shown in Figs. 1-3 Further, the flange lifting device 4 comprises a support 5 and a support frame 6, and the support frame 6 is installed on the support 5.

[0048] The beneficial effect of the further technical scheme is that the support and the support frame are provided, which is convenient for lifting the flange and facilitates the installation and disassembly of the flange.

[0049] As shown in Figs. 1-3 Further, the support frame 6 comprises a rod body 7 and a circular arc rod 8, the rod body 7 is vertically installed on the support 5, the circular arc rod 8 is installed on the top of the rod body 7, and the circular arc rod 8 is matched with the flange 3.

[0050] The beneficial effect of the further technical scheme is that the rod body and the circular arc rod facilitate the stable support of the flange by the support frame.

[0051] As shown in Figs. 1-3 Further, the flange 3 is a plurality of flanges with different diameters, and the flow meter 1 is a natural gas flow meter.

[0052] The beneficial effect of the further technical scheme is that different diameters of flanges can be selected and installed according to different flow meters.

[0053] The auxiliary device (the auxiliary device for installing and dismounting the flow meter) provided by the embodiment of the utility model is composed of an RTJ flange (a flange) and an RTJ flange lifting device (a flange lifting device).

[0054] The auxiliary device (the auxiliary device for installing and dismounting the flow meter) comprises RTJ flanges (Ring Joint Face ring connecting faces) with different diameters and an RTJ flange lifting device.

[0055] The use method is that for the flow meter inconvenient to install due to the meter length, the RTJ flange is selected, the RTJ flange is lifted to the flow meter to be installed by the RTJ flange lifting device, and the auxiliary device (the auxiliary device for installing and dismounting the flow meter) is matched with the flow meter extender, so that the flow meter with different meter lengths and different diameters is more conveniently installed.

[0056] The use principle is that the main feature of the RTJ flange is that the sealing surface is designed uniquely, a trapezoidal groove and an octagonal or elliptical metal ring (also called a ring pad or a ring connecting gasket) matched with the trapezoidal groove are adopted to realize sealing, the meter length of the flow meter is increased while good sealing is ensured, and the adjustable allowance of the extender (the flow meter extender) when the flow meter is installed is improved.

[0057] For the installation and dismounting of the large-diameter flow meter, in the past installation and dismounting process, the extender is matched with the straight pipe section, so that the flow meter with different meter lengths and different diameters is dismounted and installed.

[0058] Therefore, the embodiment of the utility model provides an auxiliary device (the auxiliary device for installing and dismounting the flow meter) for dismounting and installing the large-diameter flow meter, which can realize the advantages of convenient dismounting and installation of the flow meter and improve the installation adaptability of the flow meter, is easy to realize, has the advantage of strong operability, and has a wide application prospect.

[0059] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A flow meter installation and removal assist device, comprising: The utility model relates to a flowmeter, flowmeter telescoping device, flange and flange lifting device, the flange is located at the top of the flange lifting device, the flange is connected with the flowmeter telescoping device, and the flowmeter is connected with the flange. The flange is an RTJ flange.

2. An installation and removal flowmeter auxiliary device according to claim 1, wherein, The flange is provided with a trapezoidal groove.

3. The installation and removal flow meter assist device of claim 1, wherein, The flange is provided with an octagonal metal ring matched with the trapezoidal groove.

4. An installation and removal flowmeter auxiliary device according to claim 3, wherein, The flange is provided with an elliptical metal ring matched with the trapezoidal groove.

5. The installation and removal flow meter assist device of claim 3, wherein, The flowmeter telescoping device and the flowmeter are both connected with straight pipe sections.

6. The installation and removal flow meter assist device of claim 1, wherein, The two ends of the flange are matched with the flowmeter and the flowmeter telescoping device one by one.

7. The installation and removal flow meter assist device of claim 1, wherein, The flange lifting device comprises a support and a supporting frame, and the supporting frame is installed on the support.

8. The installation and removal flow meter assist device of claim 1, wherein, The supporting frame comprises a rod body and a circular arc rod, the rod body is vertically installed on the support, the circular arc rod is installed on the top of the rod body, and the circular arc rod is matched with the flange.

9. An installation and removal flowmeter auxiliary device according to claim 8, wherein, The flange is a plurality of flanges with different diameters, and the flowmeter is a natural gas flowmeter.

10. The installation and removal flow meter assist device of claim 1, wherein, ​

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