CN210375449U

CN210375449U - Pipeline temperature detection device

Info

Publication number: CN210375449U
Application number: CN201921682924.9U
Authority: CN
Inventors: 李洪浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-04-21
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a pipeline temperature-detecting device, include: the telescopic cylinder comprises an inner cylinder body, an outer cylinder body and a baffle ring, wherein one end of the inner cylinder body is communicated with a detection port formed in the pipeline, the opening end of the outer cylinder body is coaxially sleeved in the inner cylinder body in a sliding manner, and the baffle ring is coaxially arranged in the inner cylinder body; the piston structure comprises a piston rod and a piston head, the piston head is in sliding seal fit with the seal cavity, one end of the piston rod is hermetically embedded in the piston head, and the other end of the piston rod penetrates through the baffle ring and is connected with the outer cylinder; the return spring is coaxially sleeved on the piston rod, one end of the return spring is abutted against the outer cylinder body, and the other end of the return spring is abutted against the retaining ring; the piston rod is provided with a mounting hole arranged along the flow direction of the pipeline relative to one end of the piston head, and the temperature sensor is embedded in the inner wall of the mounting hole. The utility model discloses a telescopic cylinder, piston structure and reset spring's cooperation realizes that temperature sensor's retractable detects, and it has avoided temperature sensor to strike under the long-time of the interior fluid of pipeline and the problem that the life that leads to reduces.

Description

Pipeline temperature detection device

Technical Field

The utility model relates to a pipeline temperature measurement technique especially relates to a pipeline temperature-detecting device.

Background

At present, there are two kinds of main modes to the temperature measurement of the interior fluid of pipeline, one kind is the problem that detects its interior fluid through the temperature that detects the pipeline outer wall, this kind of mode easy operation is convenient, but the error that detects is great, another kind is then fixes the inner wall at the pipeline with temperature detection equipment, with the temperature of the interior fluid of detection pipeline, the accuracy that this kind of mode detected is high, however, the fluid in the pipeline has certain velocity of flow, it easily produces the impact force to temperature detection equipment, through long-time fluid impact, temperature detection equipment's life can reduce by a wide margin.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a pipeline temperature-detecting device, solve the long-time technical problem that fluid strikes the time life reduction in the pipeline of temperature check out test set among the prior art.

In order to achieve the above technical purpose, the technical scheme of the utility model provide a pipeline temperature detection device, include:

the telescopic cylinder comprises an inner cylinder body, an outer cylinder body and a baffle ring, wherein one end of the inner cylinder body is communicated with a detection port formed in a pipeline, one end of the outer cylinder body is open, the opening end of the outer cylinder body is coaxially sleeved at the other end of the inner cylinder body in a sliding manner, the baffle ring is coaxially arranged in the inner cylinder body, the outer edge of the baffle ring is connected to the inner wall of the inner cylinder body, and a sealing cavity is formed between the baffle ring and the detection port;

the piston structure comprises a piston rod and a piston head, the piston head is arranged in the sealed cavity and is in sliding seal fit with the sealed cavity, one end of the piston rod is hermetically embedded in the piston head, and the other end of the piston rod penetrates through the baffle ring and is connected with the outer cylinder;

the return spring is coaxially sleeved on the piston rod, one end of the return spring is abutted against the outer cylinder body, and the other end of the return spring is abutted against the baffle ring; and

a temperature sensor;

the temperature sensor is embedded in the inner wall of the mounting hole.

Compared with the prior art, the utility model discloses a telescopic cylinder, piston structure and reset spring's cooperation realizes that temperature sensor's retractable detects, and it has avoided temperature sensor to strike under the long-time of the fluid in the pipeline and the problem that the life that leads to reduces.

Drawings

Fig. 1 is a schematic view of a connection structure of the pipeline temperature detecting device in a use state;

fig. 2 is a schematic view of a connection structure of the pipeline temperature detecting device of the present invention in another use state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a pipeline temperature detection device, including telescopic cylinder 10, piston structure 20, reset spring 30 and temperature sensor 40, this embodiment is through inlaying temperature sensor 40 in the lower extreme of piston structure 20, when the fluid temperature in the accurate detection pipeline 50 of needs, accessible telescopic cylinder 10 presses down the one end that temperature sensor 40 was installed to piston structure 20 to the pipeline 50 in, in order to realize the accurate fluidic temperature that detects, and under the conventional situation, piston structure 20 is accomodate in telescopic cylinder 10 under reset spring 30's effect, in order to avoid temperature sensor 40 on the piston structure 20 to receive the long-time impact of the fluid in pipeline 50.

The telescopic cylinder 10 of this embodiment includes interior barrel 11, outer barrel 12 and keeps off ring 13, and interior barrel 11 both ends opening just is cylindricly, the detection mouth intercommunication of seting up on interior barrel 11 one end and the pipeline 50, outer barrel 12 is the cup, and its one end opening and its coaxial sliding sleeve of open end are located the barrel 11 other end in, keep off ring 13 and place in coaxial in interior barrel 11 and its outer fringe connect in interior barrel 11 inner wall, just keep off ring 13 with form a seal chamber between the detection mouth, and for guaranteeing seal chamber and piston structure 20 complex leakproofness, this embodiment the internal diameter of detection mouth with the same setting of internal diameter of interior barrel 11 to make seal chamber be a cylinder cavity. The piston structure 20 comprises a piston rod 21 and a piston head 22, the piston head 22 is arranged in the sealed cavity and is in sliding sealing fit with the sealed cavity, the sealing property of the pipeline 50 can be ensured through the sealing fit between the piston head 22 and the inner wall of the sealed cavity, one end of the piston rod 21 is embedded in the piston head 22 in a sealing manner, the other end of the piston rod passes through the baffle ring 13 and is connected with the outer cylinder 12, the return spring 30 is coaxially sleeved on the piston rod 21, one end of the return spring abuts against the outer cylinder 12, and the other end of the return spring abuts against the baffle ring 13. Specifically, the length of the piston head 22 is substantially the same as the length of the seal cavity, or the length of the piston head 22 is slightly smaller than the length of the seal cavity, so that the piston head 22 does not protrude into the pipe 50 when being integrally accommodated in the seal cavity, the impact of fluid on the piston head 22 can be reduced, the service life of the piston head 22 is prolonged, and the upper end of the piston head 22 is engaged and abutted against the stopper ring 13 when being integrally accommodated in the seal cavity. In order to facilitate the piston head 22 to normally move up and down along the sealed cavity, the inner diameter of the retainer ring 13 in this embodiment may be slightly smaller than the outer diameter of the piston rod 21, or at least one air hole penetrating up and down may be formed in the retainer ring 13.

In order to measure the fluid temperature, in this embodiment, an end of the piston rod 21 opposite to the piston head 22 is provided with a mounting hole 21a arranged along the flow direction of the pipeline 50, the piston head 22 is provided with two communication holes 22a coaxially communicated with two ends of the mounting hole 21a, the mounting hole 21a and the two communication holes 22a are matched to form a detection channel arranged along the flow direction of the pipeline 50, and the temperature sensor 40 is embedded in an inner wall of the mounting hole 21a and can detect the fluid temperature in the detection channel.

As shown in fig. 1, under the elastic force of the return spring 30, the outer cylinder 12 is far away from the retainer ring 13 to drive the piston rod 21 to move upward, and further drive the piston head 22 to be accommodated in the sealed cavity, at this time, the fluid in the pipe 50 does not pass through the detection channel on the piston structure 20, so that no impact force is generated on the temperature sensor 40 disposed in the detection channel; as shown in fig. 2, when the temperature of the fluid in the pipe 50 needs to be detected, the outer cylinder 12 is pressed downward, the piston rod 21 drives the piston head 22 to move downward, so that the lower end of the piston head moves into the fluid in the pipe 50, the fluid in the pipe 50 flows into the detection channel because the detection channel on the piston structure 20 is the same as the flowing direction of the fluid, and the temperature sensor 40 built in the detection channel can detect the temperature of the flowing fluid, and the temperature of the flowing fluid is detected in real time, so the detection accuracy is high. After the detection is finished, the outer cylinder 12 is loosened, and under the elastic acting force of the return spring 30, the outer cylinder 12 is far away from the baffle ring 13 to drive the piston rod 21 to move upwards, so that the piston head 22 is driven to be accommodated in the sealed cavity. The temperature sensor 40 of the embodiment is only subjected to the impact force of the fluid after the detection channel enters the fluid in the pipeline 50, and the temperature sensor is stored in the sealed cavity under the conventional condition and is not subjected to the impact force of the fluid, so that the temperature sensor 40 is prevented from being subjected to the impact force of the fluid for a long time, and the service life of the temperature sensor 40 is prolonged.

In order to reduce the impact of the fluid on the temperature sensor 40 during the detection process, the aperture of the communication hole 22a is smaller than that of the mounting hole 21a, so that the flow rate of the fluid in the mounting hole 21a is smaller than that of the fluid in the communication hole 22a, and the impact on the temperature sensor 40 is reduced.

The utility model discloses a telescopic cylinder, piston structure and reset spring's cooperation realizes that temperature sensor's retractable detects, and it has avoided temperature sensor to strike under the long-time of the interior fluid of pipeline and the problem that the life that leads to reduces.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pipe temperature detecting apparatus, comprising:

a temperature sensor;

the temperature sensor is embedded in the inner wall of the mounting hole.

2. The pipe temperature detecting apparatus according to claim 1, wherein an aperture of the communication hole is smaller than an aperture of the mounting hole.

3. The pipe temperature detecting device according to claim 1, wherein an inner diameter of the detection port is set to be the same as an inner diameter of the inner cylinder.