An impulse umbrella type natural circulation evaporator

A technology of natural circulation and evaporator, which is applied in the field of heat transfer enhancement, energy saving, crystallized salt scale evaporator, and automatic cleaning. The effect of reducing power consumption and steam consumption and increasing production capacity

Active Publication Date: 2019-01-04
邳州市铁富九龙公共服务有限公司
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  • Abstract
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Problems solved by technology

Even after adopting such a high energy consumption circulating pump, it only prolongs the cleaning cycle compared with the natural circulation evaporator, and still needs frequent periodic parking for cleaning

Method used

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  • An impulse umbrella type natural circulation evaporator
  • An impulse umbrella type natural circulation evaporator
  • An impulse umbrella type natural circulation evaporator

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Embodiment Construction

[0019] Attached below figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , the present invention is described in further detail.

[0020] An impulse umbrella type natural circulation evaporator, the main components are evaporation chamber 1, heating chamber 6, heating tube 5, impulse umbrella 2, cleaning screw 4, coupling spring 8, nozzle frame 10, central circulation pipe 7, evaporation bottom tank 11.

[0021] Impulse umbrella 2 is used as the power head of cleaning screw 4. The upper end of the cleaning screw 4 in the heating tube 5 is suspended under the impulse umbrella 2 of the nozzle, and the lower end of the cleaning screw 4 is connected with the coupling spring 8 . The straight section of coupling spring 8 bottoms is made into crotch after passing the bearing hole of nozzle holder 10, hangs upside down on the bearing part 23, and the circumferential direction is not fixed, and can rotate freely. During production and operation, the two-phase flow of the st...

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Abstract

The invention provides an impulse umbrella type natural-circulation evaporator. The impulse umbrella type natural-circulation evaporator is characterized in that an impulse umbrella is used as a power head for automatic cleaning. The upper part of the impulse umbrella is a conical umbrella or spherical umbrella while the lower part of the impulse umbrella is a triangular prism capable of freely carrying out lifting motion in a heating pipe; the upper end of a cleaning screw is hung on the bottom of the impulse umbrella while the lower end of the cleaning screw is connected with a coupling spring in a nozzle rack; and the straight section of the lower part of the coupling spring passes through a bearing hole in the nozzle rack and is then hooked and hung on a bearing part, and the coupling spring is not circumferentially fixed and can freely rotate. During operation of the impulse umbrella type natural-circulation evaporator in production, high-flow-velocity vapour bubble solution two-phase flow at the outlet of the heating pipe is used for driving the cleaning screw to carry out three-dimensional complex motion (rotation, radial vibration and axial reciprocation) needed in high-efficiency dirt cleaning in virtue of the characteristics that the two-phase flow exerts great impulse on the impulse umbrella and the impulse force has great fluctuation amplitude; so effective uniform and automatic cleaning is realized, and mutual wearing is avoided. The evaporator capable of realizing natural circulation and automatic cleaning can save energy and improve yield and efficiency.

Description

technical field [0001] The invention relates to an impulsive umbrella type natural circulation evaporator, which relates to the automatic cleaning of dirt in the heating pipe of the natural circulation evaporator, heat transfer enhancement and energy saving. It is mainly suitable for evaporators where dirt is easy to grow in the heating tube, especially crystallized salt scale. Background technique [0002] Evaporators are prone to fouling, especially solution evaporators, including high-salt wastewater evaporators. Natural circulation evaporator, the natural circulation flow rate is low, scaling grows in the heating tube, and the efficiency is lower. Therefore, most of them have to use high-power circulating pumps with high energy consumption to force circulation. For example, a large-scale nitrate evaporator system needs to be equipped with thousands of KW forced circulation pumps. Even after adopting such a high energy consumption circulating pump, it only prolongs the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/00B01D1/06B01D1/30
CPCB01D1/00B01D1/06B01D1/30
Inventor 俞天兰俞天翔彭德其俞秀民张治坤
Owner 邳州市铁富九龙公共服务有限公司
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