Anti-freezing system for fluid pipeline

Abstract

The utility model discloses an anti-freezing system for a fluid pipeline, which comprises a heating conductor arranged in the pipeline, the heating conductor is connected with a power switch through a lead, and the signal output end of a temperature and flow speed control display instrument is connected with the power switch through a signal line; a temperature sensor and a flow velocity sensor are installed on the inlet valve body connected with the inlet end of the pipeline, the flow velocity sensor is used for measuring the flow of fluid entering the inlet valve body, and the temperature sensor is used for measuring the temperature of the fluid entering the inlet valve body. And the signal output ends of the temperature sensor and the flow velocity sensor are connected with the signal input end of the temperature and flow velocity control display instrument. The structure is adopted for preheating the interior of the pipeline, it is guaranteed that the pipeline cannot be frozen, and therefore normal use of the pipeline is guaranteed.

Description

Technical Field

[0001] This utility model relates to pipeline antifreeze systems, and particularly to pipeline heat tracing antifreeze systems. Background Technology

[0002] In many industrial production processes, the media transported through pipelines need to be maintained within specific temperature ranges to ensure their fluidity, chemical reactivity, or to prevent solidification and crystallization. Traditional heat tracing methods, such as steam tracing and resistance heating cables, have many limitations. Steam tracing requires laying complex steam pipeline networks, the generation and transportation of steam consumes a lot of energy, has low thermal efficiency, and is prone to water hammer due to poor condensate drainage, affecting system stability and safety. While resistance heating cables are relatively easy to install, their operating costs are high, and these cables are easily damaged and have a short service life. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an antifreeze system for fluid pipelines that preheats the inside of the pipeline to prevent freezing and thus ensures normal operation of the pipeline.

[0004] In order to solve the technical problems existing in the prior art, the present invention adopts the following technical solution:

[0005] This utility model discloses an antifreeze system for fluid pipelines, comprising a heating conductor installed inside the pipeline, the heating conductor being connected to a power switch via a wire, and the signal output terminal of a temperature and flow rate control display instrument being connected to the power switch via a signal line; a temperature sensor and a flow rate sensor are installed on an inlet valve body connected to the inlet end of the pipeline, the flow rate sensor being used to measure the flow rate of the fluid entering the inlet valve body, and the temperature sensor being used to measure the temperature of the fluid entering the inlet valve body, the signal output terminals of the temperature sensor and the flow rate sensor being connected to the signal input terminal of the temperature and flow rate control display instrument.

[0006] The beneficial effects of this utility model are:

[0007] 1. Safe and reliable: The system operates without open flames or high-pressure steam, reducing the risk of fires, explosions, and other safety accidents, and improving the safety of the production process. At the same time, the heat transfer fluid is stable, not easily decomposed or oxidized, and has a long service life, reducing system maintenance and replacement costs.

[0008] 2. Strong adaptability: It can be used in different voltage environments.

[0009] 3. Pollution-free: The heat transfer fluid is recycled in a closed system, with no waste gas or wastewater discharge, which is environmentally friendly and meets the environmental protection requirements of modern industrial production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the application structure of the antifreeze system for fluid pipelines according to this utility model;

[0011] Figure 2 yes Figure 1 A partial schematic diagram of the structure shown. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] As shown in the attached diagram, this utility model discloses an antifreeze system for fluid pipelines, comprising a heating conductor 9 disposed within a pipeline 8. The heating conductor 9 is connected to a power switch via a wire, and the signal output terminal of a temperature and flow rate control display instrument 1 is connected to the power switch via a signal line. Heating conductor materials are commercially available; for example, a solid superconducting heating conductor can be used.

[0014] A temperature sensor 6 and a flow rate sensor 7 are installed on the inlet valve body 2, which is connected to the inlet end of the pipeline 8. The flow rate sensor is used to measure the flow rate of the fluid entering the inlet valve body, and the temperature sensor is used to measure the temperature of the fluid entering the inlet valve body. The signal output terminals of the temperature sensor and the flow rate sensor are connected to the signal input terminals of the temperature and flow rate control display instrument 1.

[0015] Preferably, the inlet end of the pipe is connected to the inlet end fixing member 3 installed inside the inlet valve body 2, making it less likely for the heating conductor to break. The outlet end of the pipe is connected to the outlet valve body 12 installed inside the outlet waterproof box 13. An outlet end fixing member 11 is provided inside the outlet waterproof box 13, and the heating conductor is connected to the outlet end fixing member. The inlet end fixing member 3 and the outlet end fixing member can be made using sliding hinges.

[0016] The working process of this device is as follows:

[0017] As shown in the example diagram, during the use of this system, pipe 8 is installed in the outdoor section. The inlet of the pipe is located in the inlet waterproof box 5 and is connected to the front-end water source through the pipe inlet connector 4. A low-voltage power supply system (36V) can be installed in the inlet waterproof box 5 and connected to the power switch through the wire. The outlet of the pipe is connected to the outlet valve body 12 installed in the outlet waterproof box 13. An outlet end fixing piece 11 is provided in the outlet waterproof box 13 to prevent the heat conductor from accumulating in the pipe due to the high water flow speed. The pipe passing through the outlet waterproof box is connected to the rear connecting pipe through the pipe outlet connector 10.

[0018] When liquid flows within the system's piping network, temperature sensor 6 and flow rate sensor 7 simultaneously collect signals and transmit them to the temperature and flow rate control display instrument 1. When the detected temperature and flow rate reach a given value, the temperature and flow rate control display instrument receives this signal and turns off the power switch, stopping the heating of the inside of the pipe (because the pipe will not freeze when liquid is flowing inside). Conversely, the heating conductor will begin heating the inside of the pipe. Through this operation, the system can ensure that the pipes are not prone to freezing in winter and can guarantee the normal operation of the system.

[0019] The temperature and flow rate control display instrument 1 can monitor the changes in temperature and flow rate inside the pipeline in real time through the temperature sensor 6 and the flow rate sensor 7, so as to clearly understand the temperature and flow rate inside the pipeline.

[0020] The heating conductor has low energy consumption and high heat output, and it can adapt to different voltages, allowing for the use of different voltages for heat tracing in various application scenarios. For example, in pipes that are frequently touched or moved, a 36V human safety voltage can be used, so that there is no risk of electric shock when someone moves the pipe.

[0021] The heating conductor 9 is more flexible, has stronger tensile strength, can be bent at will, has a longer service life, and is safe and reliable than traditional heating cables. Therefore, the use of this heating conductor in the system also increases the scope of application of the system.

[0022] The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many modifications under the guidance of this invention without departing from the spirit and scope of the claims, and these modifications are all protected by this invention.

Claims

1. An antifreeze system for fluid pipelines, characterized in that: The device includes a heating conductor installed inside the pipeline, which is connected to a power switch via a wire. The signal output terminal of the temperature and flow rate control display instrument is connected to the power switch via a signal line. A temperature sensor and a flow rate sensor are installed on the inlet valve body connected to the inlet end of the pipeline. The flow rate sensor is used to measure the flow rate of the fluid entering the inlet valve body, and the temperature sensor is used to measure the temperature of the fluid entering the inlet valve body. The signal output terminals of the temperature sensor and the flow rate sensor are connected to the signal input terminal of the temperature and flow rate control display instrument.

2. The antifreeze system for fluid pipelines according to claim 1, characterized in that: The inlet end of the pipe is connected to an inlet end fixing component installed in the inlet valve body, and the outlet end of the pipe is connected to an outlet valve body installed in an outlet waterproof box. An outlet end fixing component is provided in the outlet waterproof box, and the heating conductor is connected to the outlet end fixing component.

3. The antifreeze system for fluid pipelines according to claim 2, characterized in that: The inlet and outlet fasteners are equipped with sliding hinges.

4. The antifreeze system for fluid pipelines according to any one of claims 1-3, characterized in that: The heating conductor material is a solid superconducting heating conductor.

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