Mechanical seal flushing structure and vacuum closed pipeline system with same
A technology of closed tubes and flushing tubes, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., and can solve problems such as vacuum state damage
Active Publication Date: 2022-05-13
ZHEJIANG PUMP GENERAL WORKS
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005]
Based on this, it is necessary to address the current problem that air is easily introduced into the vacuum-sealed system when the standby pump is started and the seal flushing fluid is introduced, resulting in the destruction of the vacuum state. Mechanical seal flushing structure and its vacuum-tight pipeline system
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[0028] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0029] It should be noted that when a component is referred to as being “fixed on” or “set on” another component, it may be directly on the other component or there may also be an intervening component. When a component is said to be "connected" to ano...
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Abstract
The invention relates to a mechanical seal flushing structure and a vacuum closed pipeline system with the mechanical seal flushing structure. The mechanical seal flushing structure is used for a vacuum sealing pipeline system and comprises two water pump assemblies and a system main pipeline. The water pump assembly comprises a condensate pump, a valve piece and a first communicating pipe. A water pump outlet of the condensate pump is communicated with the system main pipeline through a valve piece; the condensate pump comprises a mechanical seal and a mechanical seal flushing pipe communicated to the mechanical seal; one end of the first communicating pipe is fixed with the mechanical seal flushing pipe, and the other end is fixed with the system main pipeline; through the first communicating pipe, the mechanical seal flushing requirement of the working pump can be met, and the liquid preparation requirement of the standby pump can also be met, so that when the standby pump is switched, opening and closing switching of a pipeline does not need to be carried out, and the operation steps during switching of the standby pump are reduced; in addition, due to the fact that liquid is always filled in the mechanical seal flushing pipe, no air is brought into the condensate pump from the mechanical seal flushing pipe.
Description
technical field [0001] The invention relates to the related field of condensate pumps, in particular to a mechanical seal flushing structure and a vacuum-tight pipeline system having the same. Background technique [0002] Condensate pumps are usually used in vacuum-sealed pipelines, and are installed in a one-use and one-standby mode. When one of the pumps is running, the other pump is in an emergency standby state (off state) and can be started at any time to ensure that the vacuum-sealed pipeline The stability of the road system; [0003] When the condensate pump is running, it is necessary to feed the machine seal flushing liquid in real time to carry out the machine seal flushing, so as to take away the frictional heat at the machine seal and reduce the pressure in the seal chamber; [0004] At present, the mechanical seal flushing fluid is only introduced into the standby pump before the standby pump is turned on, however, this will cause a part of the air in the mech...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D1/00F04D13/14F04D15/00F04D29/08F04D29/42F04D29/70
CPCF04D1/00F04D13/14F04D15/0005F04D29/086F04D29/426F04D29/708
Inventor 周维坚何涛缪杰余敏杨丹飞
Owner ZHEJIANG PUMP GENERAL WORKS