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An adjustable full pressure vehicle fire pump

A fire pump, full pressure technology, applied in the direction of pumps, pump control, pump components, etc., can solve the problem that the fire pump cannot meet the pressure requirements at the same time, achieve high efficiency and reduce fluid loss

Active Publication Date: 2017-07-04
金刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to solve the problem that the existing fire pumps cannot meet the six different pressure requirements specified in GB6245-2006, and then propose an adjustable full-pressure vehicle-mounted fire pump

Method used

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  • An adjustable full pressure vehicle fire pump
  • An adjustable full pressure vehicle fire pump
  • An adjustable full pressure vehicle fire pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to further explain the technical solutions of the present invention, specific examples are given below to illustrate in detail.

[0021] An adjustable full pressure on-board fire pump such as figure 1 and figure 2 As shown, it includes the pump casing 1, the pump outlet 1a is set on the pump casing 1, the main shaft 15 is arranged in the pump casing 1, the impeller 14 is connected to the main shaft 15, the impeller 14 is located in the volume cavity of the pump casing 1, and the pump is arranged on the pump casing 1. The water outlet 1a communicates with the volume chamber of the pump housing 1 , and the volume chamber of the pump housing 1 communicates with the vacuum pump 13 . During initial operation, the vacuum pump 13 draws air in the volume chamber of the pump housing 1, so that the volume chamber of the pump housing 1 generates a sufficient negative pressure, and then absorbs water.

[0022] The pump outlet 1a is connected to a six-way valve, and the ...

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Abstract

The invention relates to an adjustable full-pressure vehicle-mounted fire pump. The pump casing (1) is connected with a main shaft (15), and the main shaft (15) is connected with an impeller (14). The feature is that the pump outlet (1a) is connected with a six-way valve , the six-way valve includes a valve seat (2), and the valve seat (2) is provided with a valve water inlet (2a), a high-pressure water outlet (2d), a medium-pressure water outlet (2c), a first pressure reducing joint (2b) and a second Two decompression joints (2f), the valve seat (2) is provided with a flange seat (2e), the flange seat (2e) is connected to the valve core seat (4), and one end of the valve core seat (4) is a low-pressure water outlet (4c) , the valve core seat (4) is slidingly connected to the valve stem (6), and the lower end of the valve stem (6) is connected to the valve (7); the first pressure reducing joint (2b) and the first pressure reducing joint (2f) are each connected to a pressure reducing valve . After adopting the above technical scheme, the fire pump can meet the technical requirements of the six different pressure pumps specified in GB6245‑2006 for each working condition.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, in particular to a vehicle-mounted fire-fighting pump. Background technique [0002] Due to its special purpose, the vehicle-mounted fire pump has its unique working characteristics. The national standard GB6245-2006 stipulates six types of pumps: high pressure (4MPa), medium pressure (2MPa), low pressure (1MPa), high and low pressure, medium and low pressure, and high and medium pressure. Due to the technical requirements of various working conditions, it is impossible to equip multiple water pumps on a fire truck. If a fire pump is required to meet the six different pressure requirements specified in GB6245-2006 at the same time, this puts forward a challenge to the performance of the pump. Very demanding. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the existing fire pump cannot meet the six different pressure requireme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/40F04D15/00
Inventor 金传璞
Owner 金刚
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