CN211040493U

CN211040493U - Displacement sensor positioning and packaging structure

Info

Publication number: CN211040493U
Application number: CN201921766684.0U
Authority: CN
Inventors: 郭金磊; 陈海燕; 王兆杰; 田文杰
Original assignee: Runa Smart Equipment Co Ltd
Current assignee: Runa Smart Equipment Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-17
Anticipated expiration: 2029-10-21

Abstract

The utility model provides a displacement sensor location and packaging structure, including cylindrical displacement main pipe, displacement main pipe is interior to be equipped with waterproof sealing head one, plastics head, displacement circuit board, displacement main pipe, spacer ring, plastics outlet end, waterproof sealing head two, O type sealing washer, outlet end, water joint in proper order, the space between outlet end and the water joint is through encapsulating sealing treatment, waterproof sealing head one, plastics head, spacer ring, plastics outlet end, the two-purpose position in fixed displacement circuit board of waterproof end, the welding of displacement main pipe side has at least one displacement tubule, displacement main pipe and displacement tubule upper shield are equipped with some magnetic rings. The utility model discloses a sealed effectual and peripheral hardware magnetic ring only along the big pipe endwise slip's of displacement sensor location and packaging structure, adaptation humid tropical environment that can be fine, life improves greatly.

Description

Displacement sensor positioning and packaging structure

Technical Field

The utility model relates to a monitoring protection technical field among the thermodynamic system, concretely relates to displacement sensor location and packaging structure.

Background

The primary heat network thermal patrol work mainly patrols and protects primary heat network pipeline cells, which are also called thermal cells. The heat distribution chamber is an important component of a heat distribution pipe network and is used for detecting and repairing the state of the heat distribution pipe network. In the heat supply pipeline, because the expansion and contraction of the pipeline and the installation of the pipeline need to be considered, compensators are installed in the heat supply pipeline, and the compensators are mainly installed in a heating power chamber. Most of the heat cells are located underground, the depths of the heat cells are different, and the deepest heat cells can reach more than ten meters, so that the detection of the relative movement of a compensator in each heat cell is one of main work contents of one-network patrol and protection.

The displacement sensor is arranged on the compensator, so that the relative movement of the compensator can be well monitored and detected, but in the prior art, a common displacement sensor usually has no good sealing means, has short service life or cannot be used in a high-temperature and high-humidity environment, an external magnetic ring can rotate, a displacement circuit board is not positioned in a steel pipe in the radial direction, and data are measured only by sliding along the axial direction of the displacement pipe in the fixing direction of the magnetic ring under special use environments such as a heating power chamber and the like, and are monitored and early-warned constantly.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that in the prior art, a common displacement sensor does not have a good sealing means, an outer magnetic ring can rotate, a displacement circuit board is not positioned in a steel pipe in the radial direction, and the displacement sensor is short in service life or cannot be used in a high-temperature and high-humidity environment such as a thermal chamber, a displacement sensor positioning and packaging structure which is good in sealing effect and provided with an outer magnetic ring only sliding along the axial direction of a large displacement pipe needs to be provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a displacement sensor location and packaging mechanism, includes cylindrical displacement main, what the displacement main was equipped with in proper order is waterproof sealing head one, plastics head, displacement circuit board, spacer ring, plastics head of being qualified for the next round of competitions, waterproof sealing head two, 0 type sealing washer, the head of being qualified for the next round of competitions, waterproof joint, the space between head of being qualified for the next round of competitions and the waterproof joint is through the encapsulating sealing processing, waterproof sealing head one, plastics head, spacer ring, plastics head of being qualified for the next round of competitions, waterproof sealing head two-purpose are in the position of fixed displacement circuit board, the side welding of displacement main has at least one displacement tubule, the magnetic ring that is equipped with on displacement.

Furthermore, the magnetic ring is in sliding connection with the contact part of the large displacement pipe and the small displacement pipe, and the magnetic ring can only slide along the axial direction of the large displacement pipe.

Preferably, the large displacement pipe can also adopt a non-cylindrical structure, and the small displacement pipe is not welded, so that the magnetic ring can only axially slide along the large displacement pipe.

Preferably, the plastic end socket, the spacing ring and the plastic outlet end socket in the fixing structure of the displacement circuit board can be replaced by fixing pipes, and the fixing pipes are extruded plastic pipes.

Further, the fixed pipe is non-cylindrical and can enable the magnetic ring to only slide along the axial direction of the large displacement pipe.

According to the technical scheme provided by the utility model, the utility model provides a sealed effectual and peripheral hardware magnetic ring only along displacement tube axial slip displacement sensor location and packaging structure, the environment of such high temperature and high humidity of adaptation heating power cell that can be fine, life improves greatly.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side view of the displacement sensor of the present invention;

FIG. 3 is a side view of the present invention using a fixed tube structure;

FIG. 4 is a schematic diagram of a specific installation of the displacement sensor;

in the figure: 1. a displacement large pipe; 2. a waterproof seal head I; 3. plastic end sockets; 4. a displacement circuit board; 5. a spacer ring; 6. a plastic outlet end enclosure; 7. a second waterproof end enclosure; 8. an O-shaped sealing ring; 9. an outlet end enclosure; 10. a waterproof joint; 11. displacing the small pipe; 12. a magnetic ring; 13. and fixing the tube.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a displacement sensor positioning and packaging mechanism comprises a cylindrical displacement main pipe 1, wherein a first waterproof seal head 2, a plastic seal head 3, a displacement circuit board 4, a spacer ring 5, a plastic outlet seal head 6, a second waterproof seal head 7, an O-shaped seal ring 8, an outlet seal head 9 and a waterproof joint 10 are sequentially assembled in the displacement main pipe, a gap between the outlet seal head and the waterproof joint is sealed through glue filling, the first waterproof seal head, the plastic seal head, the spacer ring, the plastic outlet seal head and the waterproof seal head are used for fixing the position of the displacement circuit board, at least one displacement small pipe 11 is welded on the side face of the displacement main pipe, and magnetic rings 12 are sleeved on the displacement main pipe and the displacement small pipe.

The displacement circuit board is connected with a lead, and the lead passes through the plastic outlet end socket 6 and is connected with a signal collector for collecting current.

As shown in fig. 2, the magnetic ring 12 is slidably connected to the portion of the displacement pipe 1 contacting with the displacement pipe 11, and can only slide along the axial direction of the displacement pipe. In specific use, the large displacement pipe can also adopt a non-cylindrical structure, so that the small displacement pipe does not need to be welded, and the magnetic ring can only slide along the axial direction of the large displacement pipe by changing the external structure of the large displacement pipe to fix the magnetic ring.

As shown in fig. 3, the plastic end socket 3, the spacer ring 5, and the plastic outlet end socket 6 in the fixing structure of the displacement circuit board 4 may be replaced by a fixing tube 13, the fixing tube is an extruded plastic tube, and the fixing tube is non-cylindrical in the preferred embodiment, so that the magnetic ring can only slide along the axial direction of the displacement pipe.

The heating pipeline mostly adopts a metal structure, the pipeline transmission medium is mostly hot water, the expansion caused by heat and the contraction caused by cold of the pipeline are realized, and the hot water enables the pipeline to expand and drives the compensator to make telescopic displacement; because of the installation accuracy error, the centers of two connected pipelines cannot be absolutely consistent, and the concentricity deviation between the two pipelines is accompanied when the pipelines are heated and expanded. When the concentricity deviation is too large to exceed the pipeline load, the pipeline can be caused to break, the compensator is damaged, and the like, so that pipeline leakage accidents are caused, and in order to prevent the pipeline from being damaged due to thermal expansion, the long pipeline is designed into a segmented compensation mode, namely, the pipeline is additionally provided with the thermal compensator at the interval of about 200 meters.

In the installation and use processes of the transmission pipeline, the concentricity deviation of two adjacent pipelines is required to be zero, so that the stress generated by expansion with heat and contraction with cold is acted on the compensator, the compensator absorbs the stress, and the pipelines are protected from being skewed, bent and the like; if the deviation is too large, the compensator or the pipeline can be damaged under the stress of expansion and contraction.

As shown in fig. 4, the displacement sensor according to the preferred embodiment is installed on the thermal compensator through the hoop and the bracket, if the concentricity of two adjacent pipelines deviates too much under the stress of thermal expansion and cold contraction, the magnetic ring 12 on the displacement sensor slides, the magnetic ring 12 interacts with the displacement circuit board 3 in the large displacement pipe 1 to generate a current signal, the current signal is transmitted to the signal collector through a wire, the signal collector transmits the signal to the remote monitoring platform, and the worker can find out a dangerous case in time and process the dangerous case.

The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a displacement sensor location and packaging structure, its characterized in that, includes cylindrical displacement tubule (1), displacement tubule is intraductal to be equipped with waterproof sealing head (2), plastics head (3), displacement circuit board (4), spacer ring (5), plastics are qualified for the next round of competitions head (6), waterproof sealing head two (7), O type sealing washer (8), is qualified for the next round of competitions head (9), water joint (10) in proper order, the space between the head of being qualified for the next round of competitions and the water joint is through encapsulating sealing treatment, waterproof sealing head one, plastics head, spacer ring, plastics are qualified for the next round of competitions the head, water joint two-purpose in the position of fixed displacement circuit board, the welding of displacement tubule side has at least one displacement tubule (11), magnetic ring (12) that are equipped with on.

2. The positioning and packaging structure of displacement sensor as claimed in claim 1, wherein the magnetic ring (12) is slidably connected to the contacting portion of the large displacement tube (1) and the small displacement tube (11), and the magnetic ring can only slide along the axial direction of the large displacement tube.

3. The positioning and packaging structure of displacement sensor as claimed in claim 1, wherein the displacement pipe (1) can also be made of non-cylindrical structure, and the small displacement pipe (11) is not welded, so that the magnetic ring (12) can only slide along the axial direction of the displacement pipe.

4. The positioning and packaging structure of displacement sensor according to claim 1, wherein the plastic sealing head (3), the spacing ring (5) and the plastic outlet sealing head (6) in the fixing structure of the displacement circuit board can be replaced by a fixing tube (13), and the fixing tube is an extruded plastic tube.

5. A displacement sensor positioning and packaging structure according to claim 4, characterized in that the fixing tube (13) is non-cylindrical so that the magnetic ring (12) can only slide along the axial direction of the displacement tube (1).