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A fracturing vehicle engine starting valve block and starting hydraulic system

A technology of engine starting and hydraulic system, which is applied in the direction of engine starting, engine components, combustion engines, etc. It can solve the problems of additional valve plate and inconvenient pipeline connection, so as to achieve simple connection, avoid overflow and heat, and avoid starting with load Effect

Active Publication Date: 2022-07-08
中油国家油气钻井装备工程技术研究中心有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a starting valve block for the engine of a fracturing vehicle, which solves the need for an additional valve plate and Inconvenient pipeline connection

Method used

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  • A fracturing vehicle engine starting valve block and starting hydraulic system
  • A fracturing vehicle engine starting valve block and starting hydraulic system

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The present invention is a fracturing vehicle engine starting valve block, the structure of which is as follows: figure 1 As shown, it includes a valve block body 5, the valve block body 5 is provided with five plug-in valve holes, and the valve block body 5 is provided with five external interfaces, which are marked as P, A, B, T and M interfaces respectively. , the five cartridge valve holes are respectively inserted with an overflow valve 1, an electromagnetic reversing valve 2, an electromagnetic reversing valve a3 and two hydraulic control check valves 4. The valve block body 5 is provided with a P interface. The connected oil circuit G1, the end of the oil circuit G1 away from the P interface is divided into three oil circuits respectively connected to the oil outlet of the two hydraulic control check valves 4 and the oil inlet of ...

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Abstract

The invention discloses a fracturing vehicle engine starting valve block, which comprises a valve block body. The valve block body is plugged with an overflow valve, an electromagnetic reversing valve, an electromagnetic reversing valve a and two hydraulic control valves. To the valve, there are five external ports marked as P, A, B, T and M ports, the P port is connected to the output end of the hydraulic pump, the oil outlet of the two hydraulic control check valves is connected with the P port pressure oil, and its inlet The oil ports are respectively connected to the A oil port and the B oil port; the P oil channel is equipped with a two-position three-way electromagnetic reversing valve to realize the opening of a single hydraulic control check valve. The relief valve drain port and the outlet of the electromagnetic reversing valve are collected as T mouth. The invention solves the problems existing in the prior art that a large flow relief valve and a three-position four-way directional valve need to be additionally equipped with a valve plate and pipeline connection is inconvenient to realize pressure protection and start motor switching. The invention also discloses a hydraulic system for starting the engine of a fracturing vehicle.

Description

technical field [0001] The invention belongs to the technical field of petroleum, coalbed methane and shale gas equipment, relates to a fracturing vehicle engine starting valve block, and also relates to a fracturing vehicle engine starting hydraulic system. Background technique [0002] Fracturing truck is the core equipment of fracturing operation, which mainly includes four parts: chassis truck, diesel engine, transmission box and fracturing pump. Among them, the power of the diesel engine is relatively large. Generally, the hydraulic system that takes the power from the chassis is used to drive the two hydraulic motors on the engine to realize the startup. In order to improve reliability, most of the two hydraulic motors are used for one use and one for backup. Therefore, the hydraulic system generally requires pressure protection. At present, the common practice is to use mature large-flow relief valve and three-position four-way directional valve to realize functions s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16F15B13/02F15B13/06E21B43/26F02N7/00
CPCF15B11/16F15B13/023F15B13/027F15B13/06E21B43/26F02N7/00Y02T10/30
Inventor 田应成张斌樊春明彭俊威戴启平郗秦阳
Owner 中油国家油气钻井装备工程技术研究中心有限公司
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