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Interconnection and mutual backup heat supply system and method capable of realizing shutdown without boiler shutdown

It is a technology of non-stop heating and heating system, which is applied in the direction of heating system, steam central heating system, heating method, etc., which can solve the problem that it is difficult to guarantee the heat supply, and achieve the effect of improving the reliability of heating supply

Pending Publication Date: 2021-09-07
CHINA ENERGY CONSTR GRP SHAANXI ELECTRIC POWER DESIGN INST CO LTD
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  • Application Information

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Problems solved by technology

[0003] This application provides an interconnected mutual standby heating system and method with shutdown and non-stop heating to solve the problem that the heating system in the prior art encounters a failure and it is difficult to guarantee the heat supply

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  • Interconnection and mutual backup heat supply system and method capable of realizing shutdown without boiler shutdown

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Embodiment Construction

[0044] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0045] see figure 1 , which is a structural schematic diagram of an interconnected mutual backup heating system with shutdown and non-stop heating.

[0046] The present application provides an interconnection and mutual backup heating system with shutdown and non-stop heating, including a first unit 1 and a second unit 2 connected to each other, and the first unit 1 includes a first boiler 101, a first steam turbine high-pressur...

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Abstract

The invention discloses an interconnection and mutual backup heat supply system and method capable of realizing shutdown without boiler shutdown. The heat supply system comprises a first unit and a second unit which communicate with each other through a valve, and each of the first unit and the second unit comprises a boiler, a steam turbine high-pressure cylinder, a steam turbine medium-pressure cylinder, a heat supply network heater, a heat supply network drainage pump and a pipeline valve system. Under the condition that a steam turbine of a single unit breaks down, the high bypass valve and the low bypass valve are adopted for reducing pressure and temperature, the heat supply requirement is met, and the 100% heat load can be met; when the single unit is overhauled and shut down, if a steam turbine and the heat supply network heater of the other unit break down, the valve for communicating the first unit and the second unit can be opened, the heat supply network heater of the shut-down unit is used for supplying heat, and the requirement for 60% of the heat load can be met. The two units communicate with each other to form the interconnection and mutual backup heat supply system, and the overall heat supply reliability of the heat supply system is improved.

Description

technical field [0001] The present application relates to the technical field of heat supply systems and methods, and in particular to an interconnected and mutual backup heating system and method for shutdown and non-stop heating. Background technique [0002] With the rapid development of industry, large-capacity, high-parameter 330MW units and 2X330MW units have gradually become the main models for heating. The 2X330MW heating unit mainly includes boiler equipment, steam turbine equipment, feed water pump, steam pipeline and condensate water pipeline, etc. However, for the existing 2X330MW heating units, when the first station of the heating network is also a unit system, since the units are connected in series and independent of each other, when any one of the steam turbines or heating network heaters fails, the fault lies The entire 330MW unit will be shut down, and the remaining one unit will be difficult to guarantee the reliability of heating. Therefore, it is neces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D1/08F24D19/00F24D19/10F01K11/02F01K7/02F01K7/16
CPCF24D1/08F24D19/00F24D19/1003F01K11/02F01K7/02F01K7/16
Inventor 申娜范增社田永红闫英
Owner CHINA ENERGY CONSTR GRP SHAANXI ELECTRIC POWER DESIGN INST CO LTD
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