Multi-water-source steam or hot water generation method and device

A generation method and multi-water source technology, applied in the direction of steam generation, cleaning heat transfer devices, steam boilers, etc., can solve the problems of large boiler damage, high cost, corrosion, etc., to prevent damage and scaling, reduce operating costs, and operate Convenient and fast effect

Inactive Publication Date: 2019-03-29
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For some industries of small and medium-sized enterprises, such as glass fiber drawing sewage in the building materials industry, latex wastewater in the light chemical industry, and papermaking straw wastewater, the sewage discharge is intermittent, and the amount of sewage discharged is relatively low, with a daily discharge of about 10~ 20 tons, up to 100-150 tons; however, due to the pollutants contained in sewage, the treatment process is complicated, the investment is high, and the requirements for sewage discharge standards are high, so its discharge is limited in some cases, so we can use these Produce low-pressure steam or hot water from water containing pollutants, which can be used to supply enterprises, which can improve the water utilization rate of enterprises and save water resources
In this case, due to the small scale of sewage and many pollutants, if a traditional boiler is used, the cost is high, mainly because boilers are often used in large-scale steam or hot water generation fields and have high requirements for feed water , the sewage will cause greater damage to the boiler
For the evaporator or water heater currently studied by the inventor, the requirements for water supply are also quite high. If sewage is used, it will easily generate scale and cause corrosion to the device, so it is not suitable for sewage

Method used

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  • Multi-water-source steam or hot water generation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Use waste water to produce steam 2~3t / h, such as figure 1 , a multi-water source steam generating device, the heat exchange structure of the main heat exchange device 19 is a water pipe 5, the diameter of the water pipe 5 is between 100 mm and 300 mm, the pipe length is 300 mm to 1000 mm, the inner wall of the pipe is smooth, and the water pipe is a smooth pipe, The light pipe with short pipe length and large pipe diameter can effectively prevent impurities in the waste water from depositing on the inner wall of the pipe, prevent scaling, and is easy to clean; the bottom of the water pipe 5 is connected to the water supply pipe 7, and the water supply pipe 7 There is a flow regulating valve inside, and the top of the water pipe 5 is provided with a heat exchange product collection pipe 3. When collecting steam, the heat exchange product collection pipe 3 is a steam collection pipe, and the water pipe 5 runs through the top and bottom of the box body 4 respectively, and t...

Embodiment 2

[0040] Use waste water to produce steam 4~5t / h, such as figure 2 , a steam generating device with multiple water sources, the heat exchange structure of the main heat exchange device 29 is that a plurality of metal plates 14 divide the box body 4 into a plurality of thin rectangular channels, which are respectively the water channel side and the heat source side channel, and the two channels alternate with each other, Hot and cold fluids flow and exchange heat in the channels on both sides of the metal plate 14; the distance between the metal plates 14 is between 80-200mm, the water depth of the rectangular channel is 300-800mm, and the metal plate 14 is rectangular with tiny corrugations on the surface The stainless steel metal plate can increase the heat exchange effect; the upper, lower, left, and right walls of the box are provided with grooves arranged reasonably, and the four sides of the metal plate 14 are embedded in the corresponding grooves in the box 4 for fixing; t...

Embodiment 3

[0046] Utilize waste water to produce hot water 2~3t / h, the hot water generating device of this embodiment sees figure 1, the difference from the steam generation device in Example 1 is that there is no steam-water separation and superheater device, the heat exchange product collection pipe is a hot water collection pipe, and the hot water is collected and directly flows out of the device for production use, and the rest of the structure and connections are the same as figure 1 The steam generating device in is basically the same. The heat exchange between the feed water and the heat source is different from that of Example 1 in that the feed water absorbs the heat source and releases heat and then rises in temperature, and the final temperature after the temperature rise is controlled not to exceed its boiling temperature. It can be controlled at 70°C to 80°C, the heat source is medium-high temperature steam, and the steam temperature is 450°C or 540°C.

[0047] The multi-so...

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Abstract

The invention relates to a multi-water-source steam or hot water generation method and device. According to the steam or hot water generation method, feed water and a heat source are led into a body heat exchange device, heat exchange happens in the body heat exchange device to produce wet steam or hot water, the generated hot water is directly guided out, the wet steam carries liquid drops, the wet steam is further treated through a gas liquid separation and overheater device, and dry overheated steam is obtained. A heat exchange structure adopted in the body heat exchange device is a structure that short-tube-pass and large-tube-diameter water way tubes are arranged in a box body or metal plates divide the inner space of the box body into a heat source side on one side and a water sourceside on the other side and are alternately arranged, and each of the interior of each water way tube and a water way side channel is provided with an automatic sweeping device. On the premise that effective steam or hot water generation is guaranteed, scale forming of sediments in the feed water in the device is prevented, the device is simple and convenient to detach and maintain, long-term effective running can be conducted, and steam or hot water is stably and continuously generated.

Description

technical field [0001] The invention relates to a method and device for generating steam or hot water from multiple water sources. A steam or hot water generating device that is easy to disassemble and clean is used to realize stable and continuous generation of steam or heat using non-softened water or waste water containing dissolved organic substances as the water source. The water is used in the production process and belongs to the field of sewage reuse. Background technique [0002] For some industries of small and medium-sized enterprises, such as glass fiber drawing sewage in the building materials industry, latex wastewater in the light chemical industry, and papermaking straw wastewater, the sewage discharge is intermittent, and the amount of sewage discharged is relatively low, with a daily discharge of about 10~ 20 tons, up to 100-150 tons; however, due to the pollutants contained in sewage, the treatment process is complicated, the investment is high, and the re...

Claims

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Application Information

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IPC IPC(8): F22B31/08F28G1/02
Inventor 张书廷路明哲张泽
Owner TIANJIN UNIV
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