Low-pressure heater

A low-pressure heater and heating chamber technology, applied in the field of low-pressure heaters, can solve the problems of low utilization efficiency, increased consumption of cooling towers, low energy utilization rate, etc., and achieve the goals of improving utilization rate, good heat exchange capacity, and preventing flash evaporation Effect

Inactive Publication Date: 2015-03-04
常州市精尔锐工具制造有限公司
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Problems solved by technology

[0002] In the existing technology, steam from the reheating of the steam turbine is generally passed into the boiler for preheating and reuse, but such utilization efficiency is low, and most of the return steam passes through the boiler and directly flows into the cooling tower. The utilization rate of return steam is low, and it will increase the consumption of cooling tower, and the energy utilization rate is low

Method used

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  • Low-pressure heater

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 The shown low-pressure heater includes a housing 4 of the low-pressure heater, and the inside of the housing 4 is provided with a partition 9 that divides the interior of the housing into a heating chamber and a flow chamber. The upper part of the housing 4 is provided with a Connected steam inlet 7, the upper part of the flow chamber is provided with a flow outlet 10, and the lower part of the flow chamber is provided with a flow inlet 12, which is characterized in that: the partition plate 9 is provided with a U-shaped heating tube 5, the heating tube 5 The U-shaped section is located in the heating chamber, the end of the heating pipe 5 communicates with the flow chamber, the side end of the housing 4 is provided with a hydrophobic inlet 3 communicating with the heating chamber, and the partition 9 is also provided with a cooling section 16 ...

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Abstract

The invention belongs to heat regenerative system components of steam turbines and particularly relates to a low-pressure heater good in heat exchange effect. The low-pressure heater comprises a shell, a partition plate for partitioning the inside of the shell into a heating cavity and a flowing cavity is arranged inside the shell, a steam inlet communicated with the heating cavity is formed in the upper portion of the shell, a flowing outlet is formed in the upper portion of the flowing cavity, and a flowing inlet is formed in the lower portion of the flowing cavity. The low-pressure heater is characterized in that a U-shaped heating tube is arranged on the partition plate, a U-shaped segment of the heating tube is positioned in the heating cavity, the ends of the heating tube are communicated with the flowing cavity, a drain inlet communicated with the heating cavity is formed in the side end of the shell, a subcooling segment is further arranged on the partition plate, and a water outlet is formed in the lower portion of the shell and connected with the subcooling segment. The low-pressure heater is capable of reusing returned steam, so that use efficiency of the returned steam is improved effectively, and economic benefits of power plants are improved.

Description

technical field [0001] The invention belongs to steam turbine heat recovery system components, in particular to a low-pressure heater with good heat exchange effect. Background technique [0002] In the existing technology, the steam from the reheating of the steam turbine is generally passed into the boiler for preheating and reuse, but such utilization efficiency is low, and most of the return steam directly flows into the cooling tower after passing through the boiler. The utilization rate of the return steam is low, and it will increase the consumption of the cooling tower, and the energy utilization rate is low. Contents of the invention [0003] In view of the above technical problems, the present invention designs a low-pressure heater capable of reusing the refluxed steam, which effectively improves the utilization efficiency of the refluxed steam and improves the economic benefits of the power plant. [0004] The present invention adopts following technical schem...

Claims

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Application Information

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IPC IPC(8): F22D1/32
Inventor 周文斌
Owner 常州市精尔锐工具制造有限公司
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