Anti-freezing system, anti-freezing heat exchanger and application

An antifreeze system and heat exchanger technology, applied in indirect heat exchangers, heat exchanger types, damage protection, etc., can solve the problems of high cost of antifreeze, large pollution, inability to operate without power, and achieve good chemical stability and thermal stability, good safety and stability, good air tightness and water tightness

Pending Publication Date: 2017-08-18
MAANSHAN NBWAVE HEAT ENERGY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art that the antifreeze used is high in cost, heavy in pollution, and unable to

Method used

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  • Anti-freezing system, anti-freezing heat exchanger and application
  • Anti-freezing system, anti-freezing heat exchanger and application
  • Anti-freezing system, anti-freezing heat exchanger and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, an antifreeze system includes an outer tube 1, an inner tube 2 is arranged inside the outer tube 1, and the inner tube 2 is a hollow elastic tube. The hollow part of the elastic tube is isolated from the external liquid through the tube wall. If the outside is water, the external water will not enter the internal hollow part due to the water isolation effect of the elastic tube, ensuring the space of the hollow part. The elasticity here The hose can be a hose, and the inner pipe 2 is convenient to penetrate into the outer pipe 1. Of course, other types of elastic pipes can meet the requirements according to the requirements. In the case of water, the shrinkage of the inner pipe can offset the freezing effect. The expansion volume prevents the outer tube from being broken due to the increase in freezing. The inner tube 2 is a silicone tube, rubber tube or pearl cotton tube, which is low in cost and easy to manufacture.

[0037]The hollow part ...

Embodiment 2

[0041] Heat exchangers are generally used for refrigerants and water in heat pump or air-conditioning fields. When the temperature is low during defrosting, refrigeration and winter, the water side of the heat exchanger may expand due to water freezing and cause the heat exchanger to freeze and damage. Add air-filled silicone or compressible pearl cotton tubes and other similar materials inside the heat exchanger. When the inside of the water side of the heat exchanger expands due to freezing volume, it can compress the air-filled silicone tube or pearl cotton tube and other similar materials. Reduce the pressure on the water side of the heat exchanger to prevent the heat exchanger from bursting.

[0042] The above-mentioned antifreeze system is used in the field of heat exchangers, such as figure 2 As shown, the casing heat exchanger composed of concentric inner tube and outer tube, this is the outer tube 1, and the outer tube 1 is provided with a sealed and compressible ho...

Embodiment 3

[0046] Embodiment 3 is basically the same as Embodiment 2, the difference is that, as image 3 As shown, the fixed joint 4 includes a connection port 401 on which the inner tube 2 is sleeved. The middle of the connection port 401 is connected, and the connected connection port 401 communicates the hollow space of the inner tube 2 with the outside atmosphere. When working, under normal circumstances, due to the low water pressure of the inner pipe 2, the middle part of the inner pipe 2 remains hollow due to the certain strength of the pipe, and the hollow air communicates with the external air. When the temperature drops and the water in the pipe freezes, The volume of water increases due to freezing, and the increased volume squeezes the inner tube 2, and the air in the inner tube 2 is discharged into the atmosphere through the hollow opening of the connection port 401, and the inner tube 2 shrinks, which ensures that the outer tube 1 will not be damaged. extrusion.

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Abstract

The invention discloses an anti-freezing system, an anti-freezing heat exchanger and application, and belongs to the field of heat pump systems. The technical problem that under the condition that existing heat exchangers cannot use heat in the outside world during power failure, water pipes in heat exchange pipes are frost-cracked due to freezing is solved. The anti-freezing system comprises an outer pipe. An inner pipe is arranged in the outer pipe. The inner pipe is a hollow elastic hose. Under the condition that water is supplied, the expansion size caused by freezing is offset through shrinkage of the inner pipe during freezing, and the situation that because the outer pipe freezes and is expanded, the outer pipe cracks is prevented. The inner pipe is a silica gel pipe, a rubber pipe or a pearl wool pipe and is low in cost and easy to manufacture. The hollow part of the inner pipe is filled with inert gas, gas tightness and water tightness are good, and the inert gas is safe and good in stability. One end of the inner pipe is a fixed connector, and the other end of the inner pipe is a closed end. The fixed connector is fixed to the outer pipe, and the closed end extends into the outer pipe. By means of the anti-freezing system, the anti-freezing heat exchanger and the application, efficient heat exchange and freezing prevention are achieved, the structure is simple, the price is low, and installation is convenient.

Description

technical field [0001] The invention relates to the field of heat pump air conditioners, and more specifically relates to an antifreeze system, an antifreeze heat exchanger and an application thereof. Background technique [0002] The casing heat exchanger used in the air conditioner is the heat exchange between the refrigerant and the water to realize its function. The casing heat exchanger of the existing heat pump water heater is composed of a refrigerant pipe and a casing. The refrigerant pipe is arranged in the casing. It is made into a coil shape, and the surface of the coil-shaped casing is provided with an insulating layer. During use, since the casing heat exchanger is installed outdoors, when the outdoor temperature is lower than 0°C, the water in the casing may freeze, causing the casing and refrigerant pipes to freeze and crack easily. Because there is water in the casing heat exchanger, there is a risk of freezing damage naturally. In winter, when the air cond...

Claims

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Application Information

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IPC IPC(8): F28D7/10F28F1/00F28F19/00F28F21/00F25B39/00
CPCF25B39/00F28D7/10F28F1/00F28F19/006F28F21/00
Inventor 汪吉平颜世峰武加耀孙金金刘洪华
Owner MAANSHAN NBWAVE HEAT ENERGY SCI
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