Working condition adjustor for pressure adapter
A pressure matching and regulator technology, applied in the direction of machines/engines, engine components, mechanical equipment, etc., can solve the problems of changing the injector mixing tube, the pressure matching device cannot be realized, etc., and achieve the effect of improving thermal efficiency and improving efficiency.
Inactive Publication Date: 2012-10-17
王汝武
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Problems solved by technology
This kind of pressure matcher cannot maintain the injection coefficient at the best value during variable working conditions
[0004] In the current design theory and application practice of steam injectors, there are no research documents and operating examples of changing the area of the injector mixing tube in variable operating conditions.
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[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and test data, but the protection scope of the present invention is not limited by the examples.
[0022] Such as figure 2 As shown, the pressure matching device is mainly composed of a valve needle 1, a nozzle 2, a high-pressure steam inlet 3, a low-pressure steam inlet 4, a medium-pressure steam outlet 5, a mixing tube 6 and a diffuser tube 7. The working condition of the pressure matching device of the present invention is The structure of the regulator is as follows: a spool 8 is installed on the mixing tube 6 of the pressure matcher, and the spool 8 is connected to the transmission mechanism 10 for controlling its action, and the input end of the control mechanism 9 for controlling the action of the transmission mechanism 10 is connected to the The output of the measuring element 11 is connected. The measuring element 11 is an element for detecting the hi...
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The invention relates to a pressure adapter, in particular to a working condition adjustor for the pressure adapter, which is suitable for a cogeneration unit of power industry and used for enhancing efficiency of a cogeneration steam turbine. The structure of the working condition adjustor for the pressure adapter is as follows: a valve plug (8) is arranged on a mixing pipe (6) of the pressure adapter, and is connected with a transmission mechanism (10) for controlling the action of the valve plug; an input end of a control mechanism (9) for controlling the action of the transmission mechanism (10) is connected with an output end of the measuring element (11). When the pressure adapter runs under the variable working condition, the area of the mixing pipe is changed according to the variation of the working condition, the mixing pipe of the pressure adapter is provided with an adjusting valve, the area of the mixing pipe of the pressure adapter is adjusted by the working condition adjustor to enable the pressure adapter to maintain the best ejecting coefficient, in this way, the efficiency of the pressure adapter under the variable working conditions is enhanced greatly, and the heating efficiency of the cogeneration unit is improved.
Description
technical field [0001] The invention relates to a pressure matcher, in particular to a pressure matcher working condition regulator suitable for heat and power cogeneration units in the electric power industry, which is used to improve the efficiency of heat and power cogeneration steam turbines. Background technique [0002] In the electric power industry, the heat and power cogeneration unit uses a pressure matcher to match the steam extraction pressure of the steam turbine with the pressure required by the heat user to improve the efficiency of the heat and power cogeneration steam turbine. [0003] Pressure matchers are widely used in combined heat and power units. The basic principle of the pressure matcher is the principle of steam injection, which uses high-pressure steam to eject low-pressure steam and mixes it into medium-pressure steam. One of the main performance indicators of the equipment is the flow rate of low-pressure steam ejected per unit of high-pressure ...
Claims
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IPC IPC(8): F01D25/00
Inventor 王汝武
Owner 王汝武