阅读说明：本技术 水阀 (Water valve ) 是由 刘昆民 周常飞 史春祥 安学玲 徐卫鹏 吕瑞林 阚锦彪 王晓军 卢运鹏 郭岱 钱 于 2019-11-07 设计创作，主要内容包括：本发明涉及一种水阀,包括阀座和安装在所述阀座上的反冲过滤器、减压阀、安全阀、第一节流阀、第二节流阀、第一压力表和第二压力表,所述阀座内部设有第一主水道和第二主水道,所述反冲过滤器的出水口经所述第一主水道连接所述减压阀的进口和所述第一节流阀的进口,所述减压阀的出口经所述第二主水道连接所述第二节流阀的进口和所述安全阀的进口,所述第一压力表的压力接口通过所述阀座的内部通路与所述减压阀的出口相通,所述第二压力表的压力接口通过所述阀座的内部通路与所述反冲过滤器的出水口相通。本发明自带反冲洗功能,能有效减少过滤器堵塞的情况,改善采煤机的降尘效果和冷却效果。(The invention relates to a water valve which comprises a valve seat, a backflushing filter, a pressure reducing valve, a safety valve, a first throttling valve, a second throttling valve, a first pressure gauge and a second pressure gauge, wherein the backflushing filter, the pressure reducing valve, the safety valve, the first throttling valve, the second throttling valve, the first pressure gauge and the second pressure gauge are arranged on the valve seat, a first main water channel and a second main water channel are arranged in the valve seat, a water outlet of the backflushing filter is connected with an inlet of the pressure reducing valve and an inlet of the first throttling valve through the first main water channel, an outlet of the pressure reducing valve is connected with an inlet of the second throttling valve and an inlet of the safety valve through the second main water channel, a pressure interface of the first pressure gauge is communicated with an outlet of the pressure reducing. The invention has a back washing function, can effectively reduce the blockage of the filter and improve the dust fall effect and the cooling effect of the coal mining machine.)

1. A water valve, characterized by: including the disk seat with install recoil filter, relief pressure valve, relief valve, first choke valve, second choke valve, first manometer and second manometer on the disk seat, inside first main water course and the main water course of second of being equipped with of disk seat, the delivery port warp of recoil filter first main water course is connected the import of relief pressure valve with the import of first choke valve, the export warp of relief pressure valve the main water course of second is connected the import of second choke valve with the import of relief valve, the pressure interface of first manometer passes through the internal passage of disk seat with the export of relief pressure valve communicates with each other, the pressure interface of second manometer passes through the internal passage of disk seat with the delivery port of recoil filter communicates with each other.

2. The water valve of claim 1, wherein: the valve seat is L-shaped and is divided into a vertical plate and a transverse plate, the transverse plate horizontally extends forwards from the front side of the vertical plate, the water outlet of the backflushing filter is downwards installed on the transverse plate, the second throttling valve is installed on the upper portion of the front side of the vertical plate, the safety valve is installed on the front side of the vertical plate and below the second throttling valve, the first pressure gauge and the second pressure gauge are installed at the front end portion of the transverse plate, and the pressure reducing valve and the first throttling valve are respectively installed on the upper portion and the lower portion of the back side of the vertical plate.

3. The water valve of claim 2, wherein: the pressure reducing valve is fastened on the valve seat through a first fixing bolt group, a water outlet of a first main water channel and a water inlet of a second main water channel which are arranged on the back face of the vertical plate are respectively in butt joint with and communicated with a water inlet and a water outlet of the pressure reducing valve, the water outlets are mutually combined to be sealed through O-shaped rings, and the safety valve, the first throttling valve, the second throttling valve, the first pressure gauge and the second pressure gauge are all installed on the valve seat in a threaded connection mode.

4. The water valve of claim 2, wherein: the number of the first throttle valves is two, and the number of the second throttle valves is four.

5. The water valve of claim 2, wherein: the top of the backflushing filter is provided with a plurality of threaded holes.

6. The water valve of claim 2, wherein: and the backflushing filter is provided with a water inlet joint seat, a drain outlet joint seat and a handle.

7. The water valve of claim 2, 3, 4, 5, or 6, wherein: the novel automatic water supply valve is characterized in that first joint seats are further mounted on the upper portions of the back faces of the vertical plates, the first joint seats correspond to the second throttling valves in a one-to-one mode and correspond to the first joint seats and the second throttling valves, the threaded holes of the first joint seats are used for mounting, the threaded holes of the second throttling valves are communicated with one another through one sections of unthreaded holes in valve seats, the unthreaded holes are communicated with a second main water channel, each second throttling valve comprises a valve body, a valve core and a locking nut, external threads are arranged at the tail portion of the valve core, internal threads are arranged at the tail portion of the valve body, the valve core penetrates through the valve body and is connected into the valve body through the external threads at the tail portion of the valve body and fixed through the locking nut, the valve body is connected onto the valve seats through the external threads at the head portions of the valve.

8. The water valve of claim 2, 3, 4, 5, 6, or 7, wherein: the front end fixed mounting of diaphragm has the backplate, first manometer and second manometer embedded respectively in an arc recess on the backplate.

Technical Field

The invention relates to a water valve, in particular to a water valve for a spray cooling system of a coal mining machine, and belongs to the technical field of coal mining equipment.

Background

The existing water valve for the spray cooling system of the coal mining machine has the advantages that more dirt of a water path system is accumulated in the using process, a filter is frequently blocked, the spray dust falling effect is poor, the operation of a driver of the coal mining machine is influenced, the dust suction amount of workers is increased, the filter is blocked, the cooling water amount is reduced, the cooling effect is poor, the water valve is not beneficial to cooling of a motor, a rocker arm shell and an electric control system, the damage of parts is extremely easy to cause, the production system stops production, the production efficiency is reduced, and the great economic loss is caused for an ore deposit side.

Disclosure of Invention

The invention aims to provide a water valve which has a back flushing function, can effectively reduce the blocking condition of a filter, and improves the dust settling effect and the cooling effect of a coal mining machine.

The main technical scheme of the invention is as follows:

the utility model provides a water valve, includes the disk seat and installs recoil filter, relief pressure valve, relief valve, first choke valve, second choke valve, first manometer and second manometer on the disk seat, inside first main water course and the main water course of second of being equipped with of disk seat, the delivery port warp of recoil filter first main water course is connected the import of relief pressure valve with the import of first choke valve, the export warp of relief pressure valve the second main water course is connected the import of second choke valve with the import of relief valve, the pressure interface of first manometer passes through the internal passage of disk seat with the export of relief pressure valve communicates with each other, the pressure interface of second manometer passes through the internal passage of disk seat with the delivery port of recoil filter communicates with each other.

The valve seat is preferably L-shaped and is divided into a vertical plate and a transverse plate, the transverse plate horizontally extends forwards from the front of the vertical plate, the water outlet of the backflushing filter is downwards installed on the transverse plate, the second throttling valve is installed on the upper portion of the front of the vertical plate, the safety valve is installed on the front of the vertical plate and below the second throttling valve, the first pressure gauge and the second pressure gauge are installed at the front end portion of the transverse plate, and the pressure reducing valve and the first throttling valve are installed on the upper portion and the lower portion of the back of the vertical plate respectively.

The pressure reducing valve can be fastened on the valve seat through a first fixing bolt group, a water outlet of a first main water channel and a water inlet of a second main water channel which are arranged on the back face of the vertical plate are respectively butted and communicated with a water inlet and a water outlet of the pressure reducing valve, the water outlets are mutually combined to be sealed through O-shaped rings, and the safety valve, the first throttling valve, the second throttling valve, the first pressure gauge and the second pressure gauge are preferably installed on the valve seat in a threaded connection mode.

The front end fixed mounting of diaphragm has the backplate, first manometer and second manometer embedded respectively in an arc recess on the backplate.

The invention has the beneficial effects that:

because the valve seat of the water valve is ingenious in design, the backflushing filter, the pressure reducing valve, the safety valve, the throttle valve and the pressure gauge can be integrated together under the condition that the overall dimension of the water valve is basically unchanged, and the backflushing function is added on the basis of the functions of the original water valve.

The occurrence of part damage accidents caused by blockage of a water valve filter, dust suppression of a spray cooling system and poor cooling effect can be effectively reduced, and the production efficiency and the economic benefit are improved.

The invention has the advantages of high reliability, simple structure, ingenious design, space saving and easy implementation.

Drawings

FIG. 1-1 is a front view of one embodiment of the present invention;

FIG. 1-2 is a longitudinal cross-sectional view of FIG. 1-1;

FIGS. 1-3 are top views of FIGS. 1-1;

FIG. 2-1 is a front view of the valve seat;

FIG. 2-2 is a cross-sectional view of the step A-A of FIG. 2-1;

FIGS. 2-3 are left side views of the valve seat;

FIGS. 2-4 are rear views of the valve seat;

FIGS. 2-5 are top views of the valve seat;

FIGS. 2-6 are cross-sectional views D-D of FIGS. 2-5

Fig. 3 is a schematic structural view of an embodiment of the second throttle valve in an installed state.

Reference numerals:

1. a water inlet joint seat; 2. a handle; 3. a back-flushing filter; 4. a guard plate; 5. a threaded hole; 6. a sewage draining outlet joint seat; 7. a valve seat; 7-1. a first main flume; 7-2. a second main water channel; 7-3, a water inlet tank; 7-4. a water outlet of the first main water channel; 7-5. a water inlet of the second main water channel; 7-6. a threaded hole for mounting the second throttle valve; 7-7, a threaded hole for mounting a safety valve; 7-8, a threaded hole for mounting the pressure reducing valve; 7-9. a threaded hole for mounting the first throttle valve; 7-10, a threaded hole for mounting a pressure gauge; 8. a first joint base; 9. a pressure reducing valve; 10. a first set of fixing bolts; 11. a first throttle valve; 12. a second joint base; 13. a second set of fixing bolts; 14. a second throttle valve; 14-1. a valve body; 14-2. valve core; 14-3, locking a nut; 15. a safety valve; 16. a third set of fixing bolts; 17. a first pressure gauge; 18. and a second pressure gauge.

Detailed Description

The invention discloses a water valve, which comprises a valve seat 7, a backflushing filter 3, a pressure reducing valve 9, a safety valve 15, a first throttling valve 11, a second throttling valve 14, a first pressure gauge 17 and a second pressure gauge 18, wherein the backflushing filter 3, the pressure reducing valve 9, the safety valve 15, the first throttling valve and the second throttling valve are installed on the valve seat. A first main water channel 7-1 and a second main water channel 7-2 are arranged in the valve seat. The water outlet of the backflushing filter is connected with the inlet of the pressure reducing valve and the inlet of the first throttling valve through the first main water channel, and the outlet of the pressure reducing valve is connected with the inlet of the second throttling valve and the inlet of the safety valve through the second main water channel. High-pressure water enters the valve seat through the backflushing filter and then is divided into two paths, the first path directly enters the first throttle valve through the first main water channel, subsequently sequentially enters the high-pressure rubber tube for spraying in the left rocker arm and the right rocker arm of the coal mining machine, the water channel in the rocker arm shell and the inner spraying water supply device of the rocker arm, enters the roller, and finally is sprayed out by the nozzle of the roller to fall dust. By adjusting the first throttle valve, the amount of water to the rocker arm can be adjusted. The second path enters the pressure reducing valve for pressure reduction through the first main water channel, then enters the second throttling valve through the second main water channel, then leads to the water channels of the motor and the electric cabinet, cools the motor and the electric cabinet, then leads to the water jacket of the rocker arm, cools the rocker arm, and finally is sprayed out from the nozzle on the rocker arm shell for dust reduction.

The pressure interface of the first pressure gauge is communicated with the outlet of the pressure reducing valve through the internal passage of the valve seat, and the pressure interface of the second pressure gauge is communicated with the water outlet of the backflushing filter through the internal passage of the valve seat. When the water valve works normally, the first pressure gauge 17 is communicated with the decompressed water and is used for displaying the pressure of the decompressed water in real time; the second pressure gauge 18 is in communication with the filtered, but not depressurized high pressure water for displaying the inlet pressure of the high pressure water in real time.

The valve seat is L-shaped and is divided into a vertical plate and a transverse plate, the transverse plate horizontally extends forwards from the front face of the vertical plate, the water outlet of the backflushing filter is downwards installed on the transverse plate, and in the embodiment, the backflushing filter is fastened on the transverse plate through a second fixing bolt group 13. The safety valve is arranged on the front face of the vertical plate and below the second throttling valve, the first pressure gauge and the second pressure gauge are arranged at the front end part of the transverse plate, and the pressure reducing valve and the first throttling valve are respectively arranged on the upper part and the lower part of the back face of the vertical plate. The L-shaped valve seat is adopted, and the elements are arranged on the specific positions of the valve seat, so that the space is fully utilized, the backwashing function is added under the condition that the overall dimension of the water valve is basically unchanged, and the integration of elements such as a backwashing filter, a pressure reducing valve, a safety valve, a throttle valve, a pressure gauge and the like is realized.

And a water inlet groove 7-3 is formed in the transverse plate, a water outlet of the backflushing filter is correspondingly connected with the water inlet groove, and the water inlet groove is a water inlet of the first main water channel and is used for positioning the backflushing filter during installation.

The pressure reducing valve is fastened on the valve seat through a first fixing bolt group 10, a water outlet 7-4 of a first main water channel and a water inlet 7-5 of a second main water channel which are arranged on the back surface of the vertical plate are respectively in butt joint and communication with a water inlet and a water outlet of the pressure reducing valve, and the mutual combination of the water inlet and the water outlet is sealed by an O-shaped ring. The safety valve, the first throttling valve, the second throttling valve, the first pressure gauge and the second pressure gauge are all installed on the valve seat in a threaded connection mode. Therefore, threaded holes 7-6 and 7-7 for mounting a second throttling valve and a safety valve are processed in the front face of the vertical plate of the valve seat, threaded holes 7-9 for mounting a pressure reducing valve 7-8 and a first throttling valve are processed in the back face of the vertical plate, and threaded holes 7-10 for mounting a pressure gauge are processed in the front end face of the transverse plate.

The two first throttle valves are transversely arranged in parallel and respectively correspond to the inner spraying systems of the left rocker arm and the right rocker arm. The water quantity to the left rocker arm and the right rocker arm can be equivalent by adjusting the two first throttle valves. The outlet of each first throttle valve is connected with a second joint seat 12 which is used for being connected with a high-pressure rubber pipe. The number of the second throttle valves is four, the four second throttle valves are respectively led to different cooling water paths and are vertically arranged at intervals.

The top of the backflushing filter is provided with a plurality of threaded holes 5. In the embodiment, the water valve is provided with 5M 12 threaded holes, and the backflushing filter can be tightly connected with the electric cabinet shell of the coal mining machine through screwing screws, so that the water valve is tightly connected with the electric cabinet shell.

The backflushing filter is provided with a water inlet joint seat 1, a drain outlet joint seat 6 and a handle 2. The water inlet joint seat and the handle are positioned on the front side of the barrel of the backflushing filter, and the drain outlet joint seat is positioned on the rear side of the barrel of the backflushing filter.

First joint seat 8 is still installed on the back upper portion of riser, first joint seat with the second choke valve one-to-one, it is corresponding in first joint seat and the second choke valve, be used for the installation the screw hole of first joint seat with be used for the installation the screw hole of second choke valve communicates each other through being located one section unthreaded hole in the disk seat separately, and each section unthreaded hole all communicates with second main water course. As shown in fig. 3, the second throttle valve includes a valve body 14-1, a valve core 14-2 and a lock nut 14-3, the tail of the valve core is provided with an external thread, the tail of the valve body is provided with an internal thread, the valve core passes through the valve body and is connected in the valve body through the external thread at the tail of the valve core, the axial position of the valve core relative to the valve body can be adjusted by rotating the valve core, and the position of the valve core is locked by rotating the lock nut after adjustment. Before the valve core needs to be adjusted again, the locking nut is rotated to be away from the valve body. In the installation state, the valve body is connected to the valve seat through the external thread of the head of the valve body, and the head of the valve core is suspended in the unthreaded hole. The head of the valve core is adjusted to extend outwards, so that the water inlet channel of the first joint seat can be closed, the flow is reduced, and the flow is increased otherwise. By adjusting the four second throttle valves, the amount of water to the four first joint seats can be made equal. In an extreme case, the head of the valve core may extend into a seat hole inserted into the inlet of the first joint seat and form a seal between the valve core and the seat hole through a seal ring sleeved on the valve core, so that the flow rate is reduced to zero, that is, the inlet of the first joint seat is closed. The second throttling valve with the structure is matched with the first joint seat, and the second throttling valve is installed on the front face of the vertical plate, so that the occupied space of the whole water valve is saved, and the operation of flow regulation is greatly facilitated.

The front end of diaphragm has backplate 4 through third set bolt group 16 fixed mounting, first manometer and second manometer inlay respectively in an arc recess on the backplate. The front end face of the first pressure gauge and the front end face of the second pressure gauge do not exceed the protection plate, and the protection plate can effectively protect the first pressure gauge and the second pressure gauge.

When the coal cutter cuts coal, the handle 2 is rotated to a water inlet position, high-pressure water enters the water valve and is divided into two paths, one path of water is used for an inner spraying system of the left rocker arm and the right rocker arm to realize spraying dust fall at a nozzle on the roller, and the other path of water is used for cooling the motor, the electric cabinet and the rocker arm and dust fall at the nozzle on the rocker arm. When the backwashing is needed, the handle 2 is rotated to the backwashing position, the dirt on the outer side of the filter screen of the backwashing filter is flushed out by the high-pressure water, and the dirt is discharged from the sewage discharge port connector seat 6. When the coal mining machine needs to be stopped for maintenance, the handle 2 is rotated to the closing position, and the high-pressure water is stopped from entering water, so that the normal maintenance can be realized.

The water valve can effectively reduce or avoid the blockage of the water valve filter, thereby reducing the occurrence of dust suppression and poor cooling effect of a spray cooling system, and avoiding the occurrence of part damage accidents caused by the blockage of the filter, thereby improving the production efficiency and the economic benefit.