阅读说明：本技术 矿用掘进机喷雾泵内外循环分压分流阀 (Internal and external circulation pressure-dividing and flow-dividing valve for spray pump of mining development machine ) 是由 周水生 马力 韩飞 杨长俊 王志华 杨东伟 陈明辉 冯振武 李金柱 虎文广 刘国 于 2019-10-21 设计创作，主要内容包括：本发明公开了矿用掘进机喷雾泵内外循环分压分流阀,包括安全阀,阀块,内喷雾压力调节栓,内喷雾压力表,进液K型接头,堵丝,内喷雾K型接头,外喷雾K型接头,外喷雾压力调节栓,内外喷雾流量调节栓,锁母,外喷雾压力表。所述高压水进入阀块,分为内循环喷雾水流和外循环喷雾水流；所述内外喷雾流量调节栓对液压水进行调节,使左右两侧水流形成流量差；所述内循环水流通过内喷雾压力调节栓调整压力为4MPa,经过内喷雾K型接头供给内循环喷嘴喷雾,外循环水流通过外喷雾压力调节栓调整压力为2MPa,经过外喷雾K型接头供给外循环喷嘴喷雾,达到矿用掘进机喷雾泵内外循环分压分流阀的设计目的。(The invention discloses an internal and external circulation partial pressure and flow divider valve of a mining tunneling machine spray pump, which comprises a safety valve, a valve block, an internal spray pressure adjusting bolt, an internal spray pressure gauge, a liquid inlet K-shaped joint, a plug wire, an internal spray K-shaped joint, an external spray pressure adjusting bolt, an internal and external spray flow adjusting bolt, a lock nut and an external spray pressure gauge. The high-pressure water enters the valve block and is divided into an internal circulation spraying water flow and an external circulation spraying water flow; the inner and outer spray flow adjusting bolts adjust hydraulic water to enable water flows at the left side and the right side to form a flow difference; the pressure of the internal circulation water flow is adjusted to be 4MPa through the internal spraying pressure adjusting bolt, the internal circulation water flow is supplied to the internal circulation nozzle for spraying through the internal spraying K-shaped joint, the pressure of the external circulation water flow is adjusted to be 2MPa through the external spraying pressure adjusting bolt, and the external circulation water flow is supplied to the external circulation nozzle for spraying through the external spraying K-shaped joint, so that the design purpose of the internal and external circulation partial pressure and flow dividing valve of the mining heading machine spraying pump is achieved.)

1. The internal and external circulation partial pressure and flow divider valve for the spray pump of the mining heading machine comprises a safety valve (1), a valve block (2), an internal spray pressure adjusting bolt (3), an internal spray pressure gauge (4), a liquid inlet K-shaped joint (5), a plug wire (6), an internal spray K-shaped joint (7), an external spray K-shaped joint (8), an external spray pressure adjusting bolt (9), an internal and external spray flow adjusting bolt (10), a lock nut (11) and an external spray pressure gauge (12); the device is characterized in that the safety valve (1) is arranged at the lower side of the valve block (2), and the inner spraying pressure gauge (4) and the outer spraying pressure gauge (12) are arranged at the upper side of the valve block (2); the liquid inlet K-shaped joint (5) is arranged at the front end of the valve block (2), and the inner spraying K-shaped joint (7) and the outer spraying K-shaped joint (8) are respectively arranged at the rear end of the valve block (2); the inner and outer circulation pressure dividing and flow dividing valve of the mining heading machine spray pump is formed by installing the wire blocking (6) and the inner spray pressure adjusting bolt (3) on the left side of the valve block (2), and installing the outer spray pressure adjusting bolt (9) and the inner and outer spray flow adjusting bolt (10) on the right side of the valve block (2).

2. The internal and external circulation partial pressure and flow divider valve of the spray pump of the mining development machine according to claim 1, characterized in that high-pressure water enters the valve block (2) through the liquid-inlet K-shaped joint (5) and is divided into a left water flow and a right water flow, wherein the left water flow is an internal circulation spray water flow, and the right water flow is an external circulation spray water flow; the left and right water flows are adjusted by an internal and external spray flow adjusting bolt (10) to form a flow difference; the pressure of the right-side internal circulation water flow is adjusted through the internal spray pressure adjusting bolt (3) to enable the pressure of the internal circulation water flow to be 4MPa, the right-side internal circulation water flow is supplied to the internal circulation nozzle for spraying through the internal spray K-shaped joint (7), the pressure of the left-side external circulation water flow is adjusted through the external spray pressure adjusting bolt (9) to enable the pressure of the external circulation water flow to be 2MPa, and the left-side external circulation water flow is supplied to the external circulation nozzle for spraying through the external spray K-shaped joint (8), so that the design purpose of the internal and external circulation partial pressure and.

Technical Field

The invention relates to an internal and external circulation pressure-dividing and flow-dividing valve of a mining development machine spray pump, in particular to a pressure-dividing and flow-dividing device which divides one path of water into two paths and has pressure difference and flow difference of the two paths of water.

Background

at present, most of hydraulic control valves of a mining development machine spray pump are one-way water flow hydraulic control valves, and when the hydraulic control valves are divided into two ways, no pressure difference or flow difference exists; in the actual work, the development machine is provided with two spraying hydraulic systems, one is an internal circulation hydraulic system, the other is an external circulation hydraulic system, the pressures of the two hydraulic systems cannot be the same, and the internal circulation hydraulic system is larger than the external circulation hydraulic system; therefore, a hydraulic control valve which can control pressure and flow and can not control pressure and flow of two paths of water flows is required to be arranged on the spray pump of the heading machine. However, there is no device to solve this problem.

Disclosure of Invention

The invention aims to solve the problems that most of hydraulic control valves of the mining development machine spray pump are one-way water flow hydraulic control valve, and no pressure difference or flow difference exists when the hydraulic control valve is divided into two ways; in the actual work, the development machine is provided with two spraying hydraulic systems, one is an internal circulation hydraulic system, the other is an external circulation hydraulic system, the pressures of the two hydraulic systems cannot be the same, and the internal circulation hydraulic system is larger than the external circulation hydraulic system; the difficult problem is that the internal and external circulation partial pressure and flow dividing valve of the mining development machine spray pump is provided, the flow of two paths of water is adjusted through the internal and external spray flow throttling bolt, the pressure of the internal circulation water flow is 4MPa, the pressure of the external circulation water flow is 2MPa, and the purpose that the flow and the pressure of the two paths of water pressure are different is achieved.

The invention is realized by the following technical scheme:

The internal and external circulation partial pressure and flow divider valve for the spray pump of the mining heading machine comprises a safety valve (1), a valve block (2), an internal spray pressure adjusting bolt (3), an internal spray pressure gauge (4), a liquid inlet K-shaped joint (5), a plug wire (6), an internal spray K-shaped joint (7), an external spray K-shaped joint (8), an external spray pressure adjusting bolt (9), an internal and external spray flow adjusting bolt (10), a lock nut (11) and an external spray pressure gauge (12); the device is characterized in that the safety valve (1) is arranged at the lower side of the valve block (2), and the inner spraying pressure gauge (4) and the outer spraying pressure gauge (12) are arranged at the upper side of the valve block (2); the liquid inlet K-shaped joint (5) is arranged at the front end of the valve block (2), and the inner spraying K-shaped joint (7) and the outer spraying K-shaped joint (8) are respectively arranged at the rear end of the valve block (2); the inner and outer circulation pressure dividing and flow dividing valve of the mining heading machine spray pump is formed by installing the wire blocking (6) and the inner spray pressure adjusting bolt (3) on the left side of the valve block (2), and installing the outer spray pressure adjusting bolt (9) and the inner and outer spray flow adjusting bolt (10) on the right side of the valve block (2).

In order to further achieve the purpose of convenient control and operation, an inner spray pressure adjusting bolt (3) and an outer spray pressure adjusting bolt (9) are respectively arranged on the valve block (2) and are used for adjusting the pressure of two paths of water of inner circulation and outer circulation at any time.

Compared with the existing hydraulic control valve of the spray pump of the development machine, the hydraulic control valve has the following advantages:

1. Has high-pressure bearing performance: when the pressure is 50MPa, the device can work normally.

2. the flow regulation function is provided: the inner circulation system and the outer circulation system generate different flow rates by adjusting the inner and outer spray flow adjusting bolts (10).

3. The pressure difference function is provided: the flow of two paths of water in the system is adjusted through an internal and external spray flow throttling bolt (10), so that the pressure of the internal circulating water flow is 4MPa, and the pressure of the external circulating water flow is 2 MPa.

The internal and external circulation pressure-dividing and flow-dividing valve of the whole mining development machine spray pump is small in size, light in weight, complete in specification and model, simple in structure, convenient to install and easy to popularize and apply.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

FIG. 1 is a composition structure diagram of an internal and external circulation partial pressure and flow divider valve of a spray pump of the mining development machine;

In the figure:

The device comprises a safety valve (1), a valve block (2), an inner spraying pressure adjusting bolt (3), an inner spraying pressure gauge (4), a liquid inlet K-shaped joint (5), a plug wire (6), an inner spraying K-shaped joint (7), an outer spraying K-shaped joint (8), an outer spraying pressure adjusting bolt (9), an inner and outer spraying flow adjusting bolt (10), a lock nut (11) and an outer spraying pressure gauge (12).

Detailed Description

the internal and external circulation partial pressure and flow divider valve for the spray pump of the mining heading machine comprises a safety valve (1), a valve block (2), an internal spray pressure adjusting bolt (3), an internal spray pressure gauge (4), a liquid inlet K-shaped joint (5), a plug wire (6), an internal spray K-shaped joint (7), an external spray K-shaped joint (8), an external spray pressure adjusting bolt (9), an internal and external spray flow adjusting bolt (10), a lock nut (11) and an external spray pressure gauge (12); the device is characterized in that the safety valve (1) is arranged at the lower side of the valve block (2), and the inner spraying pressure gauge (4) and the outer spraying pressure gauge (12) are arranged at the upper side of the valve block (2); the liquid inlet K-shaped joint (5) is arranged at the front end of the valve block (2), and the inner spraying K-shaped joint (7) and the outer spraying K-shaped joint (8) are respectively arranged at the rear end of the valve block (2); the inner and outer circulation pressure dividing and flow dividing valve of the mining heading machine spray pump is formed by installing the wire blocking (6) and the inner spray pressure adjusting bolt (3) on the left side of the valve block (2), and installing the outer spray pressure adjusting bolt (9) and the inner and outer spray flow adjusting bolt (10) on the right side of the valve block (2).

When the water spraying valve works, high-pressure water enters the valve block (2) through the liquid inlet K-shaped joint (5) and is divided into a left water flow and a right water flow, the left water flow is an internal circulation spraying water flow, and the right water flow is an external circulation spraying water flow; the left and right water flows are adjusted by an internal and external spray flow adjusting bolt (10) to form a flow difference; the pressure of the right-side internal circulation water flow is adjusted through the internal spray pressure adjusting bolt (3) to enable the pressure of the internal circulation water flow to be 4MPa, the right-side internal circulation water flow is supplied to the internal circulation nozzle for spraying through the internal spray K-shaped joint (7), the pressure of the left-side external circulation water flow is adjusted through the external spray pressure adjusting bolt (9) to enable the pressure of the external circulation water flow to be 2MPa, and the left-side external circulation water flow is supplied to the external circulation nozzle for spraying through the external spray K-shaped joint (8), so that the design purpose of the internal and external circulation partial pressure and.

When the mining heading machine spray pump stops working, the power supply spray pump is turned off to stop supplying liquid, the internal and external circulation partial pressure and flow divider valves of the mining heading machine spray pump are cleaned, and the mining heading machine spray pump is placed in a dry place to be dried to prevent corrosion, so that the mining heading machine spray pump can be normally used for a long time.

Practice proves that the maximum bearing pressure section of the internal and external circulation partial pressure shunt valve of the mining development machine spray pump manufactured according to the scheme is 50MPa, 40MPa, 30MPa and 26 MPa; the flow range of the internal and external circulation partial pressure flow divider valve of the mining development machine spray pump is 120L/min, 100L/min, 80L/min and 60L/min.