Plug-in thermal gas mass flow transmitter

Abstract

The utility model belongs to the technical field of flow meters, and particularly relates to a plug-in thermal gas mass flow transmitter, which is mounted on a mounting pipeline and comprises a flow meter main body, a detection probe arranged at the end part of the flow meter main body and a shockproof mechanism mounted on the mounting pipeline. According to the flow meter assembly, a damping mechanism composed of the positioning sleeve, the sealing ring and the limiting ring can be installed between the installation pipeline and the flow meter body, the limiting ring can be extruded in the process that the flow meter body is inserted into the installation pipeline, and therefore a soft rubber ring is stretched and continuously extrudes a second spring after making contact with the sealing ring; after installation is completed, the limiting ring is connected between the flowmeter body and the installation ring in a sleeving mode, sealing is achieved in cooperation with the sealing ring on the inner side, meanwhile, damping is conducted through the sealing ring and a plurality of second springs, and the device is suitable for flowmeter bodies of different specifications through a deformable damping structure and is high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically to an insertion-type thermal gas mass flow transmitter. Background Technology

[0002] A gas flow transmitter is an instrument that records the total amount of gas flowing through it. It is used in various sectors of the national economy, such as metallurgy, coal, chemical industry, construction, food, and light textile. Gas flow transmitters are used in many important industrial sectors. They are an important tool for developing industrial and agricultural production, saving energy, improving product quality, and enhancing economic efficiency and management. They occupy an important position in the national economy.

[0003] In practical use, existing insertion-type thermal gas mass flow transmitters often experience vibrations due to the airflow inside the pipeline and their insertion-type installation structure. This can affect detection accuracy in minor cases and, in severe cases, cause structural loosening and loss of sealing function. The known vibration prevention solution is instrument software compensation. Based on the pipe diameter and structure, a corresponding theoretical model of gas flow velocity and a probe vibration model are established. The vibration position of the probe is measured, and the instrument vibration is compensated by software.

[0004] However, these software data processing methods all come at the cost of increasing instrument response time. But long instrument response time leads to high costs. Therefore, we propose an insertion-type thermal gas mass flow transmitter. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] An insertion-type thermal gas mass flow transmitter, installed on an installation pipeline, includes: a flow meter body, a detection probe disposed at the end of the flow meter body, a shock-absorbing mechanism installed on the installation pipeline, and a vibration damping mechanism disposed between the shock-absorbing mechanism and the flow meter body; the vibration damping mechanism includes a positioning sleeve fitted on the lower part of the flow meter body, sealing rings fixed at both ends of the positioning sleeve, a limiting ring connected to the outside of the sealing ring, a guide ring and an insert plate disposed between the limiting rings and adapted for insertion, a soft rubber ring disposed in the middle of the limiting ring, and a spring placed between the sealing rings.

[0008] In a preferred embodiment, the present invention can be further configured such that the shock-absorbing mechanism includes a protective cylinder threaded onto the installation pipe and a mounting ring fixed to the outer end of the protective cylinder.

[0009] The utility model discloses in a preferable example can be further configured as: the protective cylinder is triangular cylinder structure, and the protective cylinder is provided with the flow guide groove.

[0010] The utility model discloses in a preferable example can be further configured as: the inside embedding of sealing ring has the support ring.

[0011] The utility model discloses in a preferable example can be further configured as: the inside of sealing ring is provided with the fixed groove for fixing spring two.

[0012] The utility model discloses in a preferable example can be further configured as: the inside fixed of sealing ring has inner lining, and spring one is placed between the inner lining.

[0013] The utility model discloses in a preferable example can be further configured as: the outside of limit ring is inclined plane structure.

[0014] The above technical scheme of the utility model has following beneficial technical effects:

[0015] 1. The utility model discloses a flowmeter assembly, can install the shock attenuation mechanism that positioning sleeve, sealing ring and limit ring constitute between installation pipeline and flowmeter main body, in the process of inserting installation of flowmeter main body to installation pipeline, limit ring is extruded, thereby stretching soft rubber ring, after continuously extruding spring two after contacting sealing ring, until the installation of flowmeter main body is completed, and limit ring is sleeved between flowmeter main body and installation ring after installation is completed, and realizes sealing with the cooperation of inside sealing ring, and utilize sealing ring and multiple spring two and carry out shock attenuation, and the device utilizes the shock attenuation structure that can change, is applicable to different specifications flowmeter main body and uses, and the practicality is higher.

[0016] 2. The utility model discloses a flowmeter assembly, can install protective cylinder with installation ring on installation pipeline, and the subsequent installation makes flowmeter main body screw in protective cylinder, and protective cylinder plays the protection to the part of flowmeter main body that enters installation pipeline, thereby avoiding the airflow in installation pipeline directly impacting flowmeter main body, thereby reducing the vibration that flowmeter main body receives, and the vibration that protective cylinder receives will be blocked by shock attenuation mechanism, thereby guaranteeing the stability and reliability of flowmeter main body installation. DRAWINGS

[0017] Figure 1 It is the sectional view of the utility model discloses the plug-in type hot type gas mass flow transmitter;

[0018] Figure 2 It is the utility model discloses the plug-in type hot type gas mass flow transmitter A place enlarged view;

[0019] Figure 3 It is protective cylinder structure schematic view of the utility model discloses;

[0020] Figure 4 The limiting ring structure schematic view of the utility model.

[0021] Reference signs:

[0022] 100, mounting pipe;

[0023] 200, flow meter assembly; 210, flow meter main body; 220, detection probe; 230, positioning sleeve; 240, sealing ring; 241, support ring; 242, fixed groove; 243, inner lining plate; 244, spring one; 250, limiting ring; 260, guide ring; 270, plugboard; 280, soft rubber ring; 290, spring two;

[0024] 310, protection cylinder; 311, flow guide groove; 320, mounting ring. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below by combining with specific implementation manners and referring to the drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] It is understood that the above description is only exemplary, and is not intended to limit the scope of the utility model.

[0027] Some embodiments of the utility model provide an insertion type hot gas mass flow transmitter, which are described below in combination with the drawings.

[0028] In combination with Figures 1-4The utility model provides a kind of plug-in hot gas mass flow transmitter shown, install in installation pipeline 100, it include: flowmeter main body 210, detection probe 220 being arranged at the end of the flowmeter main body 210, shockproof mechanism and shock-absorbing mechanism being arranged between the shockproof mechanism and flowmeter main body 210 are installed on the installation pipeline 100;The shock-absorbing mechanism includes positioning sleeve 230 being sleeved in the lower part of the flowmeter main body 210, sealing ring 240 being fixed in the both ends of the positioning sleeve 230, limiting ring 250 being connected to the outside of the sealing ring 240, guide ring 260 and plugboard 270 being arranged between limiting ring 250 and being adapted to plug, soft rubber ring 280 being arranged in the middle of limiting ring 250 and spring two 290 being placed between the sealing ring 240, by flowmeter assembly 200, shock-absorbing mechanism of positioning sleeve 230, sealing ring 240 and limiting ring 250 can be installed between installation pipeline 100 and flowmeter main body 210, limiting ring 250 is extruded in the process of flowmeter main body 210 to installation pipeline 100 insertion, to stretch soft rubber ring 280, after contacting sealing ring 240, continuously extruding spring two 290, until the installation of flowmeter main body 210 is completed, after installation, limiting ring 250 is sleeved between flowmeter main body 210 and mounting ring 320, and sealing is realized by cooperation of the sealing ring 240 in the inside, while shock-absorbing is carried out using sealing ring 240 and multiple spring two 290, the device uses the shock-absorbing structure that can be deformed, is suitable for different specifications of flowmeter main body 210 use, and practicality is higher.

[0029] Specifically, the shockproof mechanism includes a protective cylinder 310 threadedly connected to the installation pipeline 100 and a mounting ring 320 fixed to the outer side end of the protective cylinder 310. The protective cylinder 310 can be screwed onto the installation pipeline 100 with the mounting ring 320. During subsequent installation, the flowmeter main body 210 is screwed into the protective cylinder 310. The protective cylinder 310 protects the part of the flowmeter main body 210 that enters the installation pipeline 100, thereby avoiding the direct impact of the airflow in the installation pipeline 100 on the flowmeter main body 210, reducing the vibration received by the flowmeter main body 210, and ensuring the stability and reliability of the installation of the flowmeter main body 210.

[0030] Further, the protective cylinder 310 is a triangular cylindrical structure, and a flow guide groove 311 is formed on the protective cylinder 310. The triangular cylindrical structure of the protective cylinder 310 directs the corners towards the direction of the medium, which can reduce the impact force received by the protective cylinder 310 to a certain extent and reduce the vibration generated.

[0031] On the other hand, a support ring 241 is embedded in the inside of the sealing ring 240, which can reinforce the sealing ring 240 and prevent it from deforming.

[0032] Further, the inner side of the sealing ring 240 is provided with a fixing groove 242 for fixing the spring two 290, and the spring two 290 can be positioned through the fixing groove 242, so as to ensure stability.

[0033] Further, the inner side of the sealing ring 240 is provided with an inner lining plate 243, and the inner lining plate 243 is provided with a spring one 244, so that the damping effect is better through the inner lining plate 243 and the spring one 244.

[0034] On the other hand, the outer side of the limiting ring 250 is a slope structure, so that the limiting ring 250 can move horizontally outward when being pressed, and the soft rubber ring 280 is appropriately stretched when moving, so as to play a role of extension, and the limiting ring 250 is composed of four or more elastic metal arc-shaped plates, so as to have a certain elastic effect, and move outward when being pressed, and then be attached to the outer side of the flowmeter main body 210 and the mounting ring 320, so as to realize self-adaptation.

[0035] The working principle and use process of the utility model are as follows: first, the mounting ring 320 is held in hand to screw the protective cylinder 310 on the mounting hole of the mounting pipeline 100, then the damping mechanism composed of the positioning sleeve 230, the sealing ring 240 and the limiting ring 250 is sleeved on the lower part of the flowmeter main body 210, and then the flowmeter main body 210 is screwed on the inner side of the protective cylinder 310, the limiting ring 250 is extruded in the process of inserting the flowmeter main body 210 to the mounting pipeline 100, so as to stretch the soft rubber ring 280, and the spring two 290 is continuously extruded after contacting the sealing ring 240, until the installation of the flowmeter main body 210 is completed, and the limiting ring 250 is sleeved between the flowmeter main body 210 and the mounting ring 320 after the installation is completed, and the sealing is realized through the cooperation of the inner sealing ring 240.

[0036] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A plug-in thermal gas mass flow transmitter mounted to a mounting pipe (100), characterized in that The utility model relates to a flowmeter, including: The flowmeter main part (210) sets up the detection probe (220) in the flowmeter main part (210) end, installs the shockproof mechanism on the installation pipeline (100) and sets up the shock attenuation mechanism between the shockproof mechanism and flowmeter main part (210); The shock attenuation mechanism includes the positioning sleeve (230) of the flowmeter main part (210) lower part, the sealing ring (240) fixed in the positioning sleeve (230) both ends, the limiting ring (250) connected in the sealing ring (240) outside, the guide ring (260) and the plugboard (270) between the limiting ring (250) and the adaptation plug, the soft rubber ring (280) in the limiting ring (250) middle part and the spring no.

2. A plug-in thermal gas mass flow transmitter according to claim 1, characterized in that The shockproof mechanism includes the protection cylinder (310) of the installation pipeline (100) threaded connection and the installation ring (320) fixed in the protection cylinder (310) outside end.

3. A plug-in thermal gas mass flow transmitter as set forth in claim 2 wherein, The protection cylinder (310) is the triangular cylinder structure, and the protection cylinder (310) is provided with the flow guide groove (311).

4. The insertion thermal gas mass flow transmitter of claim 1 wherein, The inside of the sealing ring (240) is embedded with the support ring (241).

5. The insertion thermal gas mass flow transmitter of claim 1 wherein, The inside of the sealing ring (240) is provided with the fixed groove (242) for fixing the spring no.

6. A plug-in thermal gas mass flow transmitter as set forth in Claim 1, characterized by, The inside of the sealing ring (240) is fixed with the inner lining plate (243), and the inner lining plate (243) is placed with the spring no.

7. The insertion thermal gas mass flow transmitter of claim 1 wherein, The outside of the limiting ring (250) is the inclined plane structure.

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