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Energy saving, water saving and cold and heat co-production device

A technology of cooling and heating, absorption device, applied in energy-saving heating/cooling, feed water heater, preheating and other directions, can solve the problems of small temperature difference between air-conditioning supply and return water, system operating cost and heat loss increase, and achieve high-efficiency energy-saving and emission reduction , the effect of alleviating the shortage of electricity and relieving primary energy consumption

Pending Publication Date: 2019-11-26
CHINA HUADIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since large-scale thermal power plants are far away from the city center, the temperature difference between the supply and return water of the air conditioner is very small (generally around 5°C), which leads to an increase in system operating costs and heat loss

Method used

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  • Energy saving, water saving and cold and heat co-production device
  • Energy saving, water saving and cold and heat co-production device
  • Energy saving, water saving and cold and heat co-production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides an energy-saving water-saving and combined cooling and heating device, such as figure 1 and 2 As shown, it includes a dedusting device 1, a desulfurization device 2 and an absorption device 3 connected in sequence. For example, the dedusting device 1 can be an electric precipitator, the desulfurization device 2 can be a desulfurization tower, the absorption device 3 can be an absorption tower, and the absorption device 3 The lower part is provided with flue gas inlet 3-4, and the upper part is provided with flue gas outlet 3-5, which also includes,

[0040] At least one first circulation loop, the liquid inlet end of the first circulation loop communicates with the lower part of the absorption device 3, and the liquid outlet end communicates with the upper part of the absorption device 3, so that the liquid at the liquid outlet end enters the absorption device 3 and is connected with the absorption device 3. The flue gas in the absorption devic...

Embodiment 2

[0045] This embodiment provides an energy-saving, water-saving and combined cooling and heating device. On the basis of Embodiment 1, such as image 3 and 4 As shown, it also includes a liquid storage unit 3-3, for example, the liquid storage unit 3-3 can be a liquid receiving tray, such as Figure 4 As shown, the liquid receiving plate has a disk suitable for the inner cavity of the desulfurization tower, and a through hole is set on the disk. Along the axial direction of the desulfurization tower, the through hole has an extension section extending to the top of the desulfurization tower, and the adjacent extension section The space between them is the liquid storage space, which is arranged in the absorption device 3, and its inner cavity is divided into the first flue gas treatment area and the second flue gas treatment area, and the flue gas is suitable for passing through the liquid storage unit 3 from the first flue gas treatment area -3 enters the second flue gas trea...

Embodiment 3

[0057] This embodiment provides an energy-saving, water-saving and combined cooling and heating device. On the basis of the above-mentioned embodiment 1 or 2, in order to filter and modulate the concentrated absorption liquid in the absorption device, a solution filtration conditioning system 6 is also included. , the lower part of the absorption device 3, the solution filtration and conditioning system 6, the second heat exchanger 8, the first spray unit 3-1 and / or the second spray unit 3-2 are arranged in sequence in order to filter the dilute solution After conditioning and heat exchange, it is sent to the first spray unit 3-1 and / or the second spray unit 3-2; specifically, the solution filtration and conditioning system 7 is composed of cyclones + filters connected in sequence, while A solution replenishment tank and a fifth pump communicated in sequence are arranged, and the fifth pump communicates with the solution filtering and conditioning system to replenish the soluti...

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Abstract

The invention discloses an energy saving, water saving and cold and heat co-production device. By means of the device, at least one stage of first circulation loop and a circulation heat exchange pipeline are arranged so that the problem that during wet smoke plume eliminating of a coal-fired power plant or other industries, a deep water lifting system is only input, and no benefit is generated can be solved. Meanwhile, a user side refrigerating system is arranged, in addition, the user side refrigerating system is arranged on the circulation heat exchange pipeline, a LiBr heat pump is adoptedin the refrigerating system, and the LiBr heat pump and a heat exchange station in the heating season are arranged in parallel. Finally, an opening type heat pump system is used for recycling flue gas latent heat, the heat exchange station is used for heating in the heating season, the LiBr heat pump is used for refrigerating in the non-heating season, a closed heat pump is arranged at the user end in the system, a heating season heating circulation water pipe is used in the non-heating reason to send hot water to a LiBr heat pump station, the hot water is adopted as the driving heat source for refrigerating, and the defects that in summer, the utilization rate of a thermal power plant is low, and a heating network system is idle are overcome.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an energy-saving, water-saving and combined cooling and heating device. Background technique [0002] At present, the mainstream technology for eliminating wet plume is to arrange the flue gas condenser, spray tower after the desulfurization tower, or add a slurry cooler on the slurry circulation slurry pipe to cool down the flue gas at the outlet of the desulfurization tower to precipitate moisture, and use the original flue gas Waste heat is used to heat the clean flue gas. This type of technology not only cannot deeply recover a large amount of latent heat of water vapor in the clean flue gas, but also wastes the sensible heat of the original flue gas. At the same time, the condensation of the flue gas requires an external refrigerant, resulting in a great waste of energy and water resources. In order to take away the latent heat of the net flue ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/00F23J15/02F23J15/06F23J15/08F24D3/18F25B15/06F25B27/02F22D1/00
CPCF23J15/006F23J15/02F23J15/06F23J15/08F24D3/18F25B15/06F25B27/02F22D1/00Y02B30/625Y02A30/274Y02E20/30
Inventor 王争荣王桦李伟汪洋沈明忠
Owner CHINA HUADIAN ENG
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