A sealed mounting structure for a plug-in flowmeter

Abstract

The utility model relates to flow measurement equipment technical field, concretely is a kind of sealing installation structure of plug-in flowmeter, including main component and flowmeter body, the main component includes sleeve, spring snap ring, compression spring, spring limit ring, flowmeter holder and connecting ring, the top end threaded section of sleeve is with the inside one end of spring snap ring thread connection, the inside of spring snap ring is clamped with compression spring, the end of compression spring away from spring snap ring is connected with spring limit ring, the top of spring limit ring is fixedly connected with flowmeter holder, the bottom of sleeve is connected with installation component by connecting ring. The utility model adopts air bag, after manual inflation expansion, can be closely combined with pipeline inner wall, form flexible seal, effectively compensate the unevenness and installation error of pipeline inner wall. Meanwhile, sealing ring in installation component provides second heavy sealing protection, ensure that good sealing performance can be maintained under various working conditions.

Description

Technical Field

[0001] This utility model relates to the field of flow measurement equipment technology, specifically to a sealed installation structure for an insertion flow meter. Background Technology

[0002] As a non-contact flow measurement instrument, the insertion flow meter is widely used in the field of industrial flow measurement due to its advantages such as easy installation, no need to interrupt fluid flow, and suitability for large-diameter pipelines.

[0003] However, existing insertion flow meters still face numerous technical challenges in installation and sealing that urgently need to be addressed: problems caused by improper selection of sealing materials are becoming increasingly prominent. Traditional insertion flow meters often use a single sealing material. For example, using ordinary rubber sealing rings in high-temperature fluid environments can easily lead to rubber softening or even melting, resulting in loss of sealing performance. Using unsuitable sealing materials in highly corrosive media can lead to aging, corrosion, and deformation, resulting in decreased sealing performance. Improper installation processes severely affect the sealing effect. If the sealing surface is not cleaned properly during installation, the presence of impurities, oil, etc., will affect the sealing effect. Inaccurate installation position of the sealing element or uneven pre-tightening force can also lead to poor sealing. Especially in insertion electromagnetic flow meters with flange connections, if the flange bolts are tightened in the wrong sequence or with inconsistent force, it may cause uneven stress on the flange surface, resulting in gaps and leakage. Therefore, a sealing installation structure for insertion flow meters is proposed. Utility Model Content

[0004] In view of this, the present invention provides a sealing installation structure for insertion flow meters, which aims to solve the technical problems existing in the installation and sealing of existing insertion flow meters, specifically including: sealing failure caused by improper selection of sealing materials, poor sealing caused by complex installation process, the problem that traditional sealing methods are not conducive to maintenance and repair, and technical problems of safety and sealing performance during pressurized installation.

[0005] The technical solution of this utility model embodiment is implemented as follows: A sealed installation structure for an insertion flow meter includes a main component and a flow meter body. The main component includes a sleeve, a spring retainer, a compression spring, a spring limiting ring, a flow meter holder, and a connecting ring. The threaded section at the top of the sleeve is threadedly connected to one end of the inner part of the spring retainer. A compression spring is engaged inside the spring retainer. The end of the compression spring away from the spring retainer is connected to the spring limiting ring. The top of the spring limiting ring is fixedly connected to the flow meter holder. The bottom of the sleeve is connected to an installation component through the connecting ring. An airbag seal is provided inside the sleeve.

[0006] A further preferred embodiment: the sleeve is fitted with a protective outer shell.

[0007] A further preferred embodiment includes a mounting flange, positioning bolts, a fixing ring, a rotating ring, and a sealing ring. The mounting flange is located at the bottom of the fixing ring, and the rotating ring is connected to the top of the fixing ring. The rotating ring is threadedly connected to the inside of the mounting flange via positioning bolts, and a sealing ring is embedded at the bottom of the inside of the fixing ring.

[0008] A further preferred embodiment: the airbag sealing component includes an airbag, a telescopic hose, and an air nozzle, with the telescopic hose passing through the interior of the airbag and an air nozzle installed on one side of the airbag.

[0009] A further preferred embodiment: the spring retaining ring and the spring limiting ring are equipped with limiting grooves and limiting buckles.

[0010] A further preferred embodiment: the flow meter body is installed inside the flow meter holder, and the probe at the bottom of the flow meter holder passes through the interior of the main body component, the airbag seal and the mounting component from top to bottom.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model utilizes an airbag that, after manual inflation, can tightly fit against the inner wall of the pipe, forming a flexible seal and effectively compensating for unevenness of the pipe's inner wall and installation errors. Simultaneously, the sealing ring in the mounting assembly provides a second layer of sealing protection, ensuring good sealing performance under various operating conditions.

[0013] 2. This utility model, through the combined design of a spring retaining ring and a spring limiting ring, and the precise control of the limiting groove and limiting buckle, allows for quick adjustment of the installation position of the flow meter body, enabling rapid installation and disassembly. The manual inflation design of the airbag seal makes the installation and maintenance of the equipment more convenient and faster, without the need for complex tools and equipment;

[0014] 3. The flexible sealing characteristics of the airbag seal of this utility model allow the equipment to be installed and disassembled under pressure, avoiding the problem of needing to stop and depressurize in the traditional installation method, thus improving production efficiency and reducing safety risks;

[0015] 4. This utility model uses high-quality materials and precise manufacturing processes to ensure the reliability and durability of the equipment. In particular, the airbag uses flexible sealing materials, which can effectively reduce mechanical wear and extend service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is another structural view of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a structural diagram of the main components of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation component of this utility model;

[0022] Figure 6 This is a structural diagram of the airbag sealing component of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the flow meter body of this utility model.

[0024] Figure label:

[0025] 10. Main body component; 101. Sleeve; 102. Protective housing; 103. Spring retainer; 104. Compression spring; 105. Spring limit ring; 106. Flowmeter holder; 107. Connecting ring; 20. Mounting assembly; 201. Mounting flange; 202. Positioning bolt; 203. Fixing ring; 204. Rotating ring; 205. Sealing ring; 30. Airbag seal; 301. Airbag; 302. Telescopic hose; 303. Air nozzle; 40. Flowmeter body. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive. Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] Example

[0028] like Figures 1-7As shown, this utility model embodiment provides a sealed installation structure for an insertion flow meter, including a main component 10 and a flow meter body 40. The main component 10 includes a sleeve 101, a protective shell 102, a spring retainer 103, a compression spring 104, a spring limiting ring 105, a flow meter holder 106, and a connecting ring 107.

[0029] Sleeve 101 serves as the main support component of the entire sealing installation structure. Its top end is threaded and connected to one end of the spring retainer 103 via a thread. Sleeve 101 is made of high-strength stainless steel, possessing excellent corrosion resistance and mechanical strength.

[0030] A spring retainer 103 internally engages with a compression spring 104, and the end of the compression spring 104 furthest from the spring retainer 103 is connected to a spring limiting ring 105. Limiting grooves and limiting buckles are respectively installed on the spring retainer 103 and the spring limiting ring 105. Through their cooperation, the compression amount and position of the compression spring 104 can be precisely controlled, ensuring the stability of the sealing force.

[0031] The top of the spring limiting ring 105 is fixedly connected to the flow meter holder 106 for mounting and securing the flow meter body 40. The flow meter holder 106 is manufactured using precision machining to ensure accurate fit with the flow meter body 40.

[0032] The bottom of the sleeve 101 is connected to the mounting assembly 20 via a connecting ring 107, thereby achieving a reliable connection with the piping system.

[0033] The protective housing 102 is fitted onto the outside of the sleeve 101, serving to protect the internal structure and enhance the appearance. The protective housing 102 is made of corrosion-resistant material, enabling it to withstand various harsh industrial environments.

[0034] In this embodiment, specifically:

[0035] The mounting assembly 20 includes a mounting flange 201, positioning bolts 202, a retaining ring 203, a rotating ring 204, and a sealing ring 205.

[0036] The bottom of the retaining ring 203 is equipped with a mounting flange 201, and the top is connected to a swivel ring 204. The mounting flange 201 is used for connection to the piping system and adopts a standard flange design to ensure compatibility with existing piping systems.

[0037] The mounting flange 201 is internally connected to the rotating ring 204 via a locating bolt 202, allowing for adjustment of the relative position of the fixed ring 203 and the rotating ring 204. The locating bolt 202 is made of high-strength bolts to ensure reliable connection.

[0038] A sealing ring 205 is embedded in the inner bottom of the retaining ring 203 to achieve a sealed connection with the piping system. The sealing ring 205 is made of a special rubber material that is resistant to high temperatures and corrosion, and can adapt to various working media and temperature environments.

[0039] In this embodiment, specifically:

[0040] The airbag sealing component 30 is manually inflated and includes an airbag 301, a telescopic hose 302, and an air nozzle 303.

[0041] The airbag 301 is made of a flexible sealing material, which has good elasticity and sealing performance. A telescopic hose 302 runs through the inside of the airbag 301 for gas delivery and discharge.

[0042] The air nozzle 303 is installed on one side of the airbag 301 and is used to connect the inflation device to realize the manual inflation and deflation of the airbag 301. Inflation allows the airbag 301 to expand and make tight contact with the inner wall of the pipe to form a reliable seal; deflation allows the airbag 301 to contract, facilitating the disassembly and maintenance of the equipment.

[0043] In this embodiment, specifically:

[0044] The flow meter body 40 is installed inside the flow meter holder 106. The two are designed with a precision fit to ensure the accuracy and stability of the installation.

[0045] A probe is provided at the bottom of the flow meter holder 106. This probe passes through the interior of the main body assembly 10, the airbag seal 30, and the mounting assembly 20 from top to bottom, extending into the pipeline to measure the flow rate. The probe is made of corrosion-resistant material and has good mechanical strength and chemical stability.

[0046] Example 1: Standard installation method.

[0047] The specific steps are as follows:

[0048] Based on the specifications of the piping system and the model of the flow meter body 40, select the appropriate specifications for the mounting assembly 20 and the airbag seal 30. Check that all components are intact, especially the airbag 301, for any damage or signs of aging.

[0049] Install the flow meter body 40 into the flow meter holder 106, ensuring the fit accuracy between the two. Adjust the compression of the spring 104 by using the limiting groove and limiting buckle of the spring retainer 103 and the spring limiting ring 105 to place the flow meter body 40 in the appropriate installation position.

[0050] Install the airbag seal 30 into the inside of the sleeve 101 to ensure that the airbag 301 can expand and contract freely. Connect one end of the telescopic hose 302 to the air nozzle 303, and extend the other end to a position for easy operation.

[0051] Connect the connecting ring 107 to the fixing ring 203 of the mounting assembly 20, ensuring a secure and reliable connection. Adjust the position of the rotating ring 204 using the positioning bolts 202 to ensure accurate alignment of the mounting flange 201 with the flange of the piping system.

[0052] Connect the entire sealing installation structure to the piping system via mounting flange 201. Tighten the standard bolts step by step in a diagonal sequence to ensure the flange connection is airtight. During tightening, use a torque wrench to control the tightening torque of the bolts, ensuring that the tightening torque of each bolt is consistent.

[0053] Inflate the air bladder 301 using the manual inflation device through the air nozzle 303, and observe the pressure value displayed on the pressure gauge. Stop inflation when the pressure reaches the set value (generally 0.2-0.3 MPa). After inflation, the air bladder 301 will make tight contact with the inner wall of the pipe, forming a reliable seal.

[0054] After installation, system debugging is performed to check the working status and measurement accuracy of the flow meter body 40. Pressure testing of the pipeline system verifies whether the sealing performance of the sealed installation structure meets the requirements.

[0055] Example 2:

[0056] This embodiment provides a pressurized installation method for the sealing installation structure of the insertion flowmeter of this utility model, which is suitable for special working conditions where the pressure cannot be released by stopping the machine:

[0057] Before performing live installation, a comprehensive safety inspection must be conducted to ensure that the pressure of the pipeline system is stable within the allowable range and to check whether the relevant safety protection measures are in place.

[0058] Following steps one through four of Embodiment 1, pre-install the main component 10, the airbag seal 30, and the mounting component 20 to ensure that the connections of each component are firm and reliable.

[0059] With the piping system maintaining normal operating pressure, align mounting flange 201 with the connecting flange of the piping system. Using specialized live-line installation tools, tighten the connecting bolts gradually, ensuring safety.

[0060] After completing the mechanical connection, inflate the airbag 301 through the air nozzle 303. During inflation, closely observe the pressure changes in the pipeline system and any leaks at the sealing points. Stop inflation once the airbag 301 is fully inflated and in tight contact with the inner wall of the pipeline.

[0061] Using professional leak detection equipment, we conduct a comprehensive inspection of the sealed installation areas to ensure that there are no leaks under pressure.

[0062] After confirming good sealing performance, start the operating program of the flow meter body 40 to measure flow and collect data. During operation, regularly check the condition of the sealing parts to ensure safe and stable operation of the equipment.

[0063] Example 3: Maintenance and Replacement Method;

[0064] This embodiment provides a maintenance and replacement method for the sealing installation structure of the insertion flowmeter of this utility model:

[0065] Develop a detailed maintenance plan based on the equipment's maintenance cycle and operating status. Prepare the necessary maintenance tools and spare parts, especially spare airbag seals 30 and sealing rings 205.

[0066] For situations requiring pressure relief maintenance, gradually reduce the pressure in the pipeline system according to the operating procedures. For situations involving live maintenance, ensure that safety precautions are in place.

[0067] The gas inside the airbag 301 is released through the air nozzle 303, causing the airbag 301 to contract and release the sealing contact with the inner wall of the pipeline.

[0068] Loosen the positioning bolt 202 and adjust the position of the rotating ring 204 to separate the mounting flange 201 from the piping system. Remove the entire sealing installation structure from the piping system and place it on a dedicated workbench.

[0069] Check airbag 301 for signs of aging, damage, or deformation; replace it immediately if necessary. Check the sealing surface of sealing ring 205 for integrity; replace it immediately if worn or damaged. Check the elasticity of spring retainer 103, compression spring 104, and spring limit ring 105 to ensure they are functioning properly.

[0070] Following the installation steps in Example 1, reinstall the replaced components onto the piping system. During installation, carefully check the installation position and connection status of each component to ensure installation quality.

[0071] After maintenance and replacement are completed, system debugging is performed to check whether the various performance indicators of the equipment meet the requirements. After confirming that the equipment is operating normally, it can be put into formal use.

[0072] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sealed mounting structure for an insertion flow meter, comprising a main body assembly (10) and a flow meter body (40), characterized in that: The main component (10) includes a sleeve (101), a spring retainer (103), a compression spring (104), a spring limiting ring (105), a flow meter holder (106), and a connecting ring (107). The threaded section at the top of the sleeve (101) is threaded to one end of the inner part of the spring retainer (103). The spring retainer (104) is engaged inside the spring retainer (103). The end of the spring retainer (104) away from the spring retainer (103) is connected to the spring limiting ring (105). The top of the spring limiting ring (105) is fixedly connected to the flow meter holder (106). The bottom of the sleeve (101) is connected to the mounting component (20) through the connecting ring (107). An airbag seal (30) is provided inside the sleeve (101).

2. The sealed installation structure of the insertion flow meter according to claim 1, characterized in that: The sleeve (101) is fitted with a protective outer shell (102).

3. The sealed installation structure of the insertion flow meter according to claim 1, characterized in that: The mounting assembly (20) includes a mounting flange (201), a positioning bolt (202), a fixing ring (203), a rotating ring (204), and a sealing ring (205). The mounting flange (201) is provided at the bottom of the fixing ring (203), and the rotating ring (204) is connected to the top of the fixing ring (203). The rotating ring (204) is threadedly connected to the inside of the mounting flange (201) by the positioning bolt (202). The sealing ring (205) is embedded in the bottom of the inside of the fixing ring (203).

4. The sealed installation structure of the insertion flow meter according to claim 1, characterized in that: The airbag sealing component (30) includes an airbag (301), a telescopic hose (302) and an air nozzle (303). The telescopic hose (302) passes through the interior of the airbag (301), and the air nozzle (303) is installed on one side of the airbag (301).

5. The sealed installation structure of the insertion flow meter according to claim 1, characterized in that: Limiting grooves and limiting buckles are installed on the spring retaining ring (103) and the spring limiting ring (105).

6. The sealed installation structure of the insertion flow meter according to claim 1, characterized in that: The flow meter body (40) is installed inside the flow meter holder (106), and the probe at the bottom of the flow meter holder (106) passes through the interior of the main body component (10), the airbag seal (30) and the mounting component (20) from top to bottom.

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