CN206061717U - A kind of field irrigation system - Google Patents

Abstract

The utility model discloses a field irrigation system, which comprises a water source, an inspection room located above the water source, and an irrigation network. The water pipe and the water pump of the main pipe, the main pipe is provided with a gate valve one, the main pipe is connected to two branch pipes through a tee, and each branch pipe is connected to the outlet pipe through a 90° elbow, and the position of the branch pipe is higher than the outlet pipe The location of the gate valve 2, water meter, intake and exhaust valve and pressure gauge are arranged in sequence on the branch pipe shown. The irrigation system is convenient for overhauling the irrigation settings, and the inlet and exhaust valves are set on the branch pipes of the irrigation system. The inlet and exhaust valves have simple structure, good sealing performance, long service life, can effectively remove the gas in the pipeline, and can also avoid The pipe is damaged by negative pressure.

Description

A field irrigation system

technical field

The utility model belongs to the technical field of farmland water conservancy facilities, in particular to a field irrigation system.

Background technique

The distribution of rainfall between the north and the south in my country is uneven, and there are many dry fields in the northern region. Therefore, farmland irrigation is an inevitable way to achieve a bumper harvest. At present, domestic field irrigation is to introduce well water or channel water into the field through pipelines for irrigation, pumping equipment and pipeline connections. The equipment is generally installed on the ground, and the wind and sun will affect the service life of the equipment. In addition, the process of water flowing in the pipeline will release part of the air. When the air in the pipeline accumulates too much, it will cause air resistance, affect the flow rate, and may cause the pipeline to rupture; in addition, when the water pump stops, it may cause negative pressure in the pipeline, which will also cause The pipeline is broken, so the irrigation pipeline needs to install the intake and exhaust valves, but the conventional intake and exhaust valves are not well sealed and have a relatively short service life.

Chinese patent application number 201320238827.7 discloses an irrigation pipeline exhaust valve, which includes a valve body and a valve cover. The valve body is provided with a valve inner cavity, a valve ball is placed in the valve inner cavity, and an air inlet hole is opened at the bottom of the valve body; The cover is provided with an exhaust channel, and the lower end of the exhaust channel is provided with a tapered annular opening. When the irrigation pipeline exhaust valve is closed, the valve ball cooperates with the tapered annular opening to close the exhaust channel. When the irrigation pipeline is working, the water passes through the air inlet to lift the valve ball up and discharge the gas. When the valve ball fits with the tapered annular opening, the exhaust valve of the irrigation pipeline is closed to prevent water leakage; when there is gas in the irrigation pipeline, The gas pushes up the valve ball, and at this time, the gas in the pipeline enters the inner cavity of the valve body through the air inlet hole, and is discharged through the exhaust channel on the valve cover. However, the contact area between the upper end surface of the valve ball of the device and the tapered annular opening is relatively small, and the sealing performance is not good, which may cause water leakage.

Utility model content

In view of this, the purpose of this utility model is to provide a field irrigation system for the deficiencies of the prior art. The exhaust valve has simple structure, good sealing performance and long service life, can effectively remove the gas in the pipeline, and can also prevent the pipeline from being damaged by negative pressure.

In order to achieve the above object, the utility model adopts the following technical solutions:

A field irrigation system, comprising a water source, an inspection room located above the water source, and an irrigation network, the irrigation network comprising a water inlet pipe whose water inlet end is arranged in the water source, a main pipe, and a water pump connecting the water inlet pipe and the main pipe , Gate valve 1 is set on the main pipe, the main pipe is connected to two branch pipes through a tee, and each branch pipe is connected to the water outlet pipe through a 90° elbow, and the position of the branch pipe is higher than the position of the water outlet pipe, as shown Gate valve 2, water meter, intake and exhaust valves and pressure gauge are arranged in sequence on the branch pipe;

The intake and exhaust valves include a valve housing and a valve cover. The valve housing is provided with a valve chamber and an air intake channel communicating with the valve chamber. The valve chamber is provided with a valve ball, and the valve cover is provided with an air outlet channel and an air outlet hole communicating with the air outlet channel, the bottom of the valve chamber is provided with an annular clamping position, and the annular clamping position is provided with a support platform for supporting the valve ball, and the support platform is provided with an exhaust gap , the lower end surface of the top of the valve cover is provided with a guide post, and the valve ball is provided with a guide rail at a position corresponding to the guide post.

Further, a tapered opening is provided at the bottom of the air outlet channel, and an annular tapered surface matching the tapered opening is provided on the upper end surface of the valve ball.

Further, the valve casing and the valve cover are screwed together.

Further, a bent portion is provided at the top end of the valve cover.

Further, a spring is arranged on the guide post.

The beneficial effects of the utility model are:

1. The utility model discloses a field irrigation system, which includes a water source, an inspection room located above the water source, and an irrigation network, wherein the irrigation network includes a water inlet pipe, a main pipe, and a water pump connecting the water inlet pipe and the main pipe at the water inlet end. Gate valve 1 is set on the main pipe, and the main pipe is connected to two branch pipes through a tee, and each branch pipe is connected to the water outlet pipe through a 90° elbow. The position of the branch pipe is higher than the position of the water outlet pipe. The pressure gauge, the branch pipe is also located in the inspection room, and the outlet end of the water outlet pipe is located in the field. The inspection room is set up to facilitate the inspection of the irrigation settings. In addition, the branch pipe is equipped with an inlet and exhaust valve, which can effectively remove the gas in the pipeline and is conducive to improving Pipeline flow capacity; in addition, it can also avoid the situation that the pipeline is damaged by negative pressure at the end of irrigation.

2. The branch pipe of the utility model is threaded to connect the intake and exhaust valves, and the bottom of the valve chamber of the intake and exhaust valve is provided with a ring-shaped clamping position. The purpose of setting the support platform is to reduce the wear of the valve ball on the bottom of the valve cavity and increase the service life of the intake and exhaust valves.

3. A guide post is set on the top of the valve cover, a guide rail is set inside the valve ball corresponding to the guide post, and a ring-shaped tapered opening is set at the bottom of the air outlet channel, and a ring-shaped tapered surface matching the tapered opening is set on the upper end of the valve ball. When the intake and exhaust valves are not working, the valve ball moves down along the guide column to the support platform under the action of gravity or the negative pressure in the pipeline, and the air outlet is in an open state at this time; when the intake and exhaust valves work normally , the branch pipe is filled with water, the water enters the intake and exhaust valves from the air intake passage, and the valve ball moves upward along the guide column under the action of buoyancy. When it is tightly fitted, the air outlet is closed to prevent the pipeline from leaking. At this time, the bottom end of the guide column just moves to the bottom of the guide rail. When there is negative pressure in the pipeline, the valve ball moves downward along the guide column under the action of external atmospheric pressure. Move, the vent hole is opened, the outside air enters the pipeline, and the negative pressure is eliminated. The bottom of the air outlet channel of the utility model is provided with an annular conical opening, and the upper end surface of the valve ball is provided with an annular conical surface matching the conical opening. This setting can ensure that when the air outlet is closed, the contact area between the valve ball and the conical opening is large, Good sealing.

4. There is a bending part on the top of the valve cover. The bending part can prevent foreign debris from entering the air outlet, which can increase the service life of the intake and exhaust valves. The spring is set on the guide post to buffer the movement speed of the valve ball and increase the valve ball service life.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is a schematic structural view of the intake and exhaust valves in Embodiment 1 of the utility model;

Fig. 3 is a schematic structural diagram of the intake and exhaust valves in Embodiment 2 of the present utility model.

In the figure: 1-water source, 2-overhaul room, 3-inlet pipe, 4-main pipe, 5-water pump, 6-gate valve 1, 7-branch pipe, 8-outlet pipe, 9-gate valve 2, 10-water meter, 11- Inlet and exhaust valves, 12-pressure gauge, 13-90° elbow, 14-valve housing, 15-bonnet, 16-valve cavity, 17-intake channel, 18-valve ball, 19-outlet channel, 20- Air outlet, 21-annular clamping position, 22-support platform, 23-guide column, 24-guide rail, 25-tapered opening, 26-annular conical surface, 27-bending part, 28-spring.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Example 1

A field irrigation system, as shown in Figure 1, includes a water source 1, an inspection room 2 located above the water source 1, and an irrigation network, wherein the irrigation network includes a water inlet pipe 3 arranged in the water source 1, a main pipe 4, and connecting the water inlet pipe 3 and The water pump 5 of the main pipe 4, the gate valve 16 is set on the main pipe 4, the main pipe 4 is connected to two branch pipes 7 through a tee, and each branch pipe 7 is connected to the water outlet pipe 8 through a 90 ° elbow 13, and the water outlet of the water outlet pipe 8 is arranged in the field. The position of 7 is higher than the position of water outlet pipe 8, and gate valve 2, 9 water meter 10, intake and exhaust valve 11 and pressure gauge 12 are arranged successively on branch pipe 7.

Wherein the upper interface of the branch pipe 7 is connected to the intake and exhaust valve 11 by threads. The structure of the intake and exhaust valve 11 is shown in Figure 2. Connection, the valve housing 14 is provided with a valve chamber 16 and an air inlet passage 17 communicating with the valve chamber 16, a valve ball 18 is arranged in the valve chamber 16, and an air outlet passage 19 and an air outlet hole 20 communicating with the air outlet passage 19 are arranged on the valve cover 15 , the bottom of the valve chamber 16 is provided with an annular clamping position 21, and the annular clamping position 21 is provided with a support platform 22 for supporting the valve ball 18. The support platform 22 is provided with an exhaust gap, and the lower end surface of the top of the valve cover 15 is provided with a guide post 23. A guide rail 24 is arranged on the position corresponding to the guide column 23 on the top of the ball 18 . An annular conical opening 25 is provided at the bottom of the air outlet passage 19, and an annular conical surface 26 matching the conical opening 25 is provided on the upper surface of the valve ball 18; a bending part 27 is provided at the top of the valve cover 15, and the bending part 27 can protect the outlet. The function of the air hole 20 can prevent external dirt from entering the air outlet hole 20, thereby prolonging the service life of the intake and exhaust valves.

When using the field irrigation system of the present utility model, water enters the branch pipe 7 through the water inlet pipe 3 and the main pipe 4 under the action of the water pump 5, wherein the gate valve one 6 controls the main pipe, the gate valve two 9 controls the branch pipe 7, and the inlet and discharge on the branch pipe 7 The air valve 11 can effectively remove the gas in the pipeline, which is beneficial to improve the flow capacity of the pipeline, and can also prevent the pipeline from being damaged by negative pressure; the branch pipe 7 is also arranged in the maintenance room 2, which is convenient for maintenance of the irrigation device. And the maintenance room 2 is provided with a power supply to supply power to the irrigation device, and a solar power generation device can be arranged outside the maintenance room, which can utilize solar energy to supply power to the power supply, which is economical and environmentally friendly.

And when the intake and exhaust valve 11 was not working, the valve ball 18 moved down to the support platform 22 along the guide column 23 under the action of gravity or the negative pressure in the pipeline, and now the air outlet 20 was in an open state; When the exhaust valve 11 is working, water enters the valve chamber 16 through the air inlet passage 17, and the valve ball 18 moves upward along the guide post 23 under the action of buoyancy, when the annular cone surface 26 on the upper end surface of the valve ball 18 meets the bottom of the air outlet passage 19 The air outlet 20 is closed when the ring-shaped tapered opening 25 is closely fitted to prevent the pipeline from leaking; when there is gas in the pipeline, the gas pushes up the valve ball 18, and the gas in the pipeline passes through the air inlet channel 17 and the air outlet channel. 19 and then discharged from the air outlet hole 20, and when the air pressure in the pipeline cannot lift the valve ball 18, the gas in the pipeline will be discharged from the exhaust gap on the support platform 22. And when there was negative pressure in the pipeline, the valve ball 18 moved down along the guide column 23 under the effect of the external atmospheric pressure, the air outlet 20 was opened, and the external air entered the pipeline to eliminate the negative pressure.

Example 2

Embodiment 2 has basically the same structure as Embodiment 1, except that, as shown in FIG. 3 , a spring 28 is provided on the guide column 23 to buffer the movement speed of the valve ball 18 and increase the service life of the valve ball 18 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model without limitation, other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the utility model, as long as they do not depart from the technical solution of the utility model The spirit and scope should be included in the claims of the present utility model.

Claims (5)

1. a kind of field irrigation system, it is characterised in that：Including water source（1）, positioned at the water source（1）The maintenance room of top（2） With irrigate network, the irrigation network includes that water inlet end is arranged on the water source（1）In water inlet pipe（3）, house steward（4）And even Connect the water inlet pipe（3）And house steward（4）Water pump（5）, the house steward（4）Upper setting gate valve one（6）, the house steward（4）Pass through Threeway connects two arms（7）, described each arm（7）By 90 ° of elbows（13）Connection outlet pipe（8）, the arm（7）'s Position is higher than the outlet pipe（8）Position, shown arm（7）On set gradually gate valve two（9）, water meter（10）, air inlet and exhaust valve （11）And pressure gauge（12）；

The air inlet and exhaust valve（11）Including valve casing（14）And valve gap（15）, the valve casing（14）Upper setting valve pocket（16）And with it is described Valve pocket（16）The inlet channel being connected（17）, the valve pocket（16）Interior setting valve ball（18）, the valve gap（15）On arrange out Gas passage（19）And with the outlet passageway（19）The venthole of connection（20）, the valve pocket（16）Bottom arranges annular screens （21）, the annular screens（21）On be provided for supporting the valve ball（18）Supporting table（22）, the supporting table（22）On It is provided with aerofluxuss breach, the valve gap（15）Top lower surface arranges lead column（23）, the valve ball（18）On with the guiding Post（23）Guide rail is set on opposite position（24）.

2. a kind of field irrigation system according to claim 1, it is characterised in that：The outlet passageway（19）Bottom is arranged Tapered opening（25）, the valve ball（18）Upper surface is arranged and the tapered opening（25）The circular cone for matching（26）.

3. a kind of field irrigation system according to claim 1, it is characterised in that：The valve casing（14）And valve gap（15）Spiral shell Stricture of vagina connects.

4. a kind of field irrigation system according to claim 1, it is characterised in that：The valve gap（15）Top arranges bending Portion（27）.

5. a kind of field irrigation system according to claim 1, it is characterised in that：The lead column（23）Upper setting spring （28）.