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System and method for detecting blockage of thin shell type heat exchanger for tunnel

A technology for clogging detection and heat exchangers, applied in the field of detection systems, can solve the problems of incapable of thin-shell heat exchanger clogging and rapid detection, and achieve the effects of fast and reliable method, improved accuracy, and improved differentiation.

Pending Publication Date: 2019-09-10
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies of the prior art, the present disclosure provides a thin-shell heat exchanger blockage detection system and detection method for tunnels, which solves the current problem that the blockage of the thin-shell heat exchanger cannot be quickly detected, and its operation Simple, fast and reliable method, can quickly detect the blocked branch of the thin-shell heat exchanger, and evaluate the degree of blockage

Method used

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  • System and method for detecting blockage of thin shell type heat exchanger for tunnel
  • System and method for detecting blockage of thin shell type heat exchanger for tunnel
  • System and method for detecting blockage of thin shell type heat exchanger for tunnel

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Embodiment 1

[0043] Such as Figure 1-2 As mentioned above, Embodiment 1 of the present disclosure provides a blockage detection system for a thin-shell heat exchanger for subway tunnels, including a thin-shell heat exchanger body 2, a water supply and return module, and an infrared temperature measurement module 21. The thin shell The type heat exchanger includes a plurality of branch pipes 24, which are used to take heat and release heat in the surrounding rock of the tunnel; The thin-shell heat exchanger is used for water supply; the 21 infrared temperature measuring modules are used to test the temperature of the water outlet and water inlet of each branch pipe 24.

[0044] The thin-shell heat exchanger is arranged between the first tunnel lining 1 and the second tunnel lining 6 , and is protected by mortar 3 , geotextile 4 , and waterproof board 5 between the thin-shell heat exchanger and the second tunnel lining 6 .

[0045]The thin-shell heat exchanger also includes a plurality of ...

Embodiment 2

[0052] Embodiment 1 of the present disclosure provides a thin-shell heat exchanger clogging detection system for subway tunnels, including a thin-shell heat exchanger body 2, a water supply and return module, and an infrared temperature measurement module 21. The thin-shell heat exchanger The device includes a plurality of branch pipes 24, which are used to take heat and release heat in the surrounding rock of the tunnel; the water supply and return module is connected with the thin-shell heat exchanger through the water supply and return The heat exchanger supplies water; the infrared temperature measuring modules 21 are used to test the temperature of the water outlet and the water inlet of each branch pipe 24.

[0053] The thin-shell heat exchanger is arranged between the first tunnel lining 1 and the second tunnel lining 6 , and is protected by mortar 3 , geotextile 4 , and waterproof board 5 between the thin-shell heat exchanger and the second tunnel lining 6 .

[0054] T...

Embodiment 3

[0061] Such as image 3 As shown, Embodiment 3 of the present disclosure provides a method for detecting clogging of a thin-shell heat exchanger for a subway tunnel, and the steps are as follows:

[0062] Connect the water supply and return module with the thin-shell heat exchanger through the water supply and return main pipe, fill the water tank of the water supply and return module, turn on the circulating water pump of the water supply and return module, and turn off the heater to perform system circulation;

[0063] After the system enters a stable working condition, use the infrared thermal imaging module to perform infrared imaging on the wall temperature of the water outlet and water inlet of each parallel branch pipe in the thin-shell heat exchanger, and record the temperature of the water outlet and inlet of each branch pipe at this time. The temperature difference of the nozzle wall, as the correction value △T t0 ; The infrared temperature measurement module is an ...

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Abstract

The invention provides a system and a method for detecting blockage of a thin shell type heat exchanger for a tunnel. The system comprises the thin shell type heat exchanger, a water supply and returnmodule and an infrared temperature measurement module, wherein the thin shell type heat exchanger comprises a plurality of branch main pipes and is used for heating and releasing heat in surroundingrocks of the tunnel; the water supply and return module is connected with the thin shell type heat exchanger through a water supply and return pipeline and is used for supplying water to the thin shell type heat exchanger; and the infrared temperature measurement module is used for testing the temperature of a water outlet and a water inlet of each branch main pipe. According to the system of theinvention, the infrared temperature measurement module is used for detecting the temperature of the water outlet and the water inlet of the branch main pipe, thus the technical problem that the blockage problem of the thin shell type heat exchanger at the front end of a subway ground source heat pump cannot be quickly detected at present is solved, the operation is simple, the method is quick andreliable, a blocked branch of the thin shell type heat exchanger can be quickly detected, and the blockage degree of the branch can be evaluated.

Description

technical field [0001] The disclosure relates to a detection system, in particular to a detection system and a detection method for a thin-shell heat exchanger blockage used in a tunnel. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The subway source heat pump using the thin-shell heat exchanger as the front-end heat exchanger has significant advantages in economy, performance, and construction. [0004] However, the inventor found in the research that due to the small flow inner diameter of the capillary in the heat exchanger, blockage is prone to occur during construction and operation. Therefore, it is difficult to use traditional methods, such as ultrasonic flowmeters, to detect the flow of each parallel branch; if a pressure gauge or flow meter is installed on each branch to monitor its flow, it will significantly increase the in...

Claims

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Application Information

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IPC IPC(8): G01D21/00
CPCG01D21/00F24T10/10F24T50/00Y02E10/10
Inventor 季永明胡松涛佟振童力刘国丹
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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