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Sewage and surface water heat pump open tunnel type heat exchanging tank heat exchanging method and apparatus thereof

A heat exchange device and surface water technology, which is applied to the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of heavy operation workload, complex system process, and low heat exchange efficiency

Active Publication Date: 2007-11-07
HIT HARBIN INST OF TECH KINT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing system technology is relatively complex, the heat exchange efficiency is low, a large amount of dirt makes the heat exchange efficiency decay too fast, the cleaning and maintenance cycle is short, the operation workload is too large, and the distance of the water source is relatively short in the transportation heat exchange method. When solving the problems of high investment and difficult maintenance work in water pipes, a heat exchange method and device for open channel heat exchange tanks for sewage and surface water heat pumps are provided

Method used

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  • Sewage and surface water heat pump open tunnel type heat exchanging tank heat exchanging method and apparatus thereof
  • Sewage and surface water heat pump open tunnel type heat exchanging tank heat exchanging method and apparatus thereof
  • Sewage and surface water heat pump open tunnel type heat exchanging tank heat exchanging method and apparatus thereof

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specific Embodiment approach 1

[0009] Specific embodiment one: (see Fig. 1) the steps of the heat exchange method of the sewage and surface water heat pump open channel heat exchange tank of the present embodiment are as follows: 1. Send sewage or surface water into the flow channel with a cross-sectional area ≥ 300mm×40mm, The inclined slope or hydraulic gradient of the flow channel is 0.5% to 6%, and the sewage or surface water flows in the flow channel in the form of a partially filled open channel; 2. The flow channel through which the sewage or surface water flows is a long straight channel or a broken line Runners; 3. Arrange tube bundles or plates on the bottom or both sides of the runners, and the heat exchange medium (clear water or refrigerant, etc.) flows in the cavity of the tube bundles or plates to form heat exchange grooves; 4. The wall of the runners The tube bundles or plates on the flow channel wall are connected (in series or in parallel), and the heat exchange medium and sewage or surface...

specific Embodiment approach 2

[0010] Specific embodiment two: (see Figure 2) This embodiment is a sewage or surface water open channel type long straight channel or heat exchange tank flow heat exchange method, in a certain section between the water source and the building (or machine room) Underground or on the ground, or when there is enough space in the machine room and other selected places, set up a long straight channel or a few series channels for sewage, and arrange heat exchange tube bundles or plates on the bottom or both sides of the channel to form a long Direct heat exchange tank. Sewage or surface water is pumped into a single channel or a few channels in series to flow in the open channel, and the heat exchange medium flows in the tube bundle or plate cavity.

specific Embodiment approach 3

[0011] Specific embodiment three: (see Fig. 3 and Fig. 4) This embodiment is a flow heat exchange method in which multiple flow channels or multiple heat exchange tanks of sewage or surface water open channel are combined in series. The length of the heat groove is small, and multiple heat grooves are combined in series to form a zigzag flow channel. Sewage flows from top to bottom, from the first flow channel or heat exchange tank to the last flow channel or heat exchange tank one by one, and the flow in all flow channels or heat exchange tanks is open channel flow. Sewage or surface water exchanges heat with the heat exchange medium through the tube bundle or plate surface in the flow channel. The tube bundles or plate cavities in each channel or heat exchange tank can be connected in series or connected in series and in parallel to control the flow rate and flow resistance of the heat exchange medium.

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Abstract

The invention discloses the sewage and the surface water heat pump open canal type heat exchange trough heat exchange method and its equipment, which is relates to a heat pump open canal type heat exchange trough heat exchange method and its equipment. The invention goal is that it solves the problems of the relatively complex existing system craft, the massive dirt causes the heat transfer efficiency weaken too quickly, the short clean maintenance cycle, the big operation work load. The invention method sends the sewage or the surface water in the flow channel of the cross-sectional area at least 300mmX40mm, the incline slope or the hydraulic gradient of the flow channel is 0.5%-6%, the sewage or the surface water become the non- full pipe in the flow channel open canal type to flow. The multi-heat pipe (3) of the invention equipment paralleling connects on the flow bottom (4) and keeps a gap with the flow bottom (4). The invention method sewage according to the non- full pipe open canal flow, because of the open style, not only can not appear blinding question, moreover easier clean maintenance the exchange hot face, and few flow channels, the small clean work load, even may on-line clean. The invention installment has the merit of simply structure, easy maintain.

Description

technical field [0001] The invention relates to a heat exchange method and a device for a heat pump open channel heat exchange tank. Background technique [0002] Urban sewage and surface water (rivers, lakes and seawater) are good low-level, renewable, and clean energy sources. The development and utilization of urban sewage and surface water can be used as heat pump cold and heat sources to provide heating or air conditioning for buildings, that is, sewage or surface water heat pumps Heat and air conditioning have important energy-saving and environmental protection values. For example, the sewage at 10°C is lowered by 5°C, and the thermal energy of the temperature difference of 5°C is extracted, which is low-level, and then converted to high-level by using the principle of heat pump cycle, so that it reaches about 50°C or higher, and then heats the building , In order to achieve the purpose of building energy saving, the use of urban sewage and surface water as the heat ...

Claims

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Application Information

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IPC IPC(8): F28D1/06
Inventor 吴荣华孙德兴
Owner HIT HARBIN INST OF TECH KINT TECH
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