Process steam flow control apparatus

A technology of steam flow and control device, which is applied to non-electric variable control, temperature control, control/regulation system, etc., can solve the problem that the temperature of process hot water cannot meet the production needs, the heat demand of process water fluctuates, and the steam control of small flow cannot be achieved. and other problems to avoid adverse effects, prolong service life, and improve reliability.

Inactive Publication Date: 2017-05-17
NINGBO CITY HANGZHOUWAN NEW DISTRICT XIANGYUAN POWER SUPPLYING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to various unstable factors often appear in the production process, the heat demand of process water often fluctuates, and the corresponding process steam flow rate will also change continuously, resulting in frequent opening and closing of some pneumatic valves, which has serious disa

Method used

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  • Process steam flow control apparatus

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Experimental program
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Embodiment 1

[0023] Such as figure 1 A process steam flow control device is shown, which includes a steam sub-cylinder 1 and two process steam supply units respectively connected with the steam sub-cylinder 1, and the process steam supply unit includes a steam sub-cylinder connected with the steam sub-cylinder 1 The steam supply pipeline 2, the first pneumatic valve 3 and the second pneumatic valve 4 arranged in parallel on the steam supply pipeline 2, and the time control switch control box electrically connected with the first pneumatic valve 3 and the second pneumatic valve 4 respectively , The end of the steam supply pipeline 2 is provided with a heat exchanger 5, which is a shell-and-tube heat exchanger. The device also includes an air compressor 9 communicating with the pneumatic actuators in the first pneumatic valve 3 and the second pneumatic valve 4 respectively. The process steam in the steam distribution cylinder 1 is sent to the heat exchanger 5 after the process steam supply ...

Embodiment 2

[0027] In this embodiment, there are three process steam supply units, and the rest are the same as in Embodiment 1.

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Abstract

The invention relates to a process steam flow control apparatus, comprising a steam dividing cylinder and a plurality of process steam supply units communicated respectively with the steam dividing cylinder; each process steam supply unit comprises a steam supply pipeline communicated with the steam dividing cylinder, first and second pneumatic valves arranged in parallel on the steam supply pipeline, and a time-control switch control box electrically connected respectively to the first and second pneumatic valve, the tail end of the steam supply pipeline is provided with a heat exchanger, and process steam in the steam dividing cylinder is delivered to the heat exchangers after flow is adjusted through the process steam supply units. Compared with the prior art, the process steam flow control apparatus has the advantages that the two pneumatic valves connected in parallel and having different diameters are provided, openings of the two pneumatic valves are intelligently controlled through the time-control switch control box according to actual process needs, and required heat is provided for process water; adjusting precision is high, adjusting flexibility is good, the apparatus has long service life and good stability and reliability.

Description

technical field [0001] The invention belongs to the technical field of process steam adjustment, and relates to a process steam flow control device. Background technique [0002] The heating process of the existing process water mostly adopts the process steam heat exchange method. The process steam exchanges heat with the process water in the heat exchanger, and the heat is transferred to the process water, so that the temperature of the process water becomes process hot water. The steam supply pipeline of process steam is often equipped with multiple identical pneumatic valves in parallel to adjust the flow rate of process steam for heat exchange with process water. When the demand for steam is small, only one pneumatic valve is activated; As the amount of steam increases, multiple pneumatic valves are opened one by one to provide more steam for process water. Due to various unstable factors often appear in the production process, the heat demand of process water often fl...

Claims

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Application Information

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IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 郑铁君丁洪益张松吉
Owner NINGBO CITY HANGZHOUWAN NEW DISTRICT XIANGYUAN POWER SUPPLYING
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