CN210491986U

CN210491986U - Head junction structure for connecting large-mouth well and underground pipeline

Info

Publication number: CN210491986U
Application number: CN201921030681.0U
Authority: CN
Inventors: 郝喆; 曹明杰; 陈娜; 邓焱; 吴超君
Original assignee: Liaoning University
Current assignee: Liaoning University
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-12
Anticipated expiration: 2029-07-04

Abstract

A first pivot structure connecting a large well and an underground pipeline, including a large well, a connecting pipeline, a valve well, and a water outlet pipeline. The connecting pipeline is in the shape of "ji" to connect the large well and the valve well. The valve well is connected with the valve well by the connecting pipe. The valve well is provided with a water outlet pipe. One end of the water outlet pipe is connected with the connecting pipe, and the other end penetrates the valve well wall. The water outlet pipe is provided with a check valve, a gate valve, a pressure gauge and a water meter. The utility model adopts a connection structure of a large well and a valve well, uses groundwater and pipelines for irrigation, is suitable for high-standard farmland irrigation, and has strong applicability and broad application prospects.

Description

Head junction structure for connecting large-mouth well and underground pipeline

Technical Field

The utility model belongs to farmland irrigation engineering field, concretely relates to prelude pivot structure that major possession well and underground piping are connected.

Background

The high-standard farmland construction is an important measure for supporting the three farmers by public finance, is a material foundation for guaranteeing the long-term safety of national grains, is a core area for creating grain production, and is a practical requirement for stably improving the comprehensive production capacity of grains, developing modern agriculture, promoting the income increase of farmers and building new socialist rural areas. And in some high-standard basic farmland areas, the grain yield in the areas can not be loitering due to the climate environment of nineteen years of drought, so that the difficulty of income increase of farmers is high. And irrigation is mostly carried out by adopting surface channels, so that the cost for clearing and repairing is high, the irrigation efficiency is low, and water resources are seriously wasted due to surface evaporation and seepage. Therefore, the arrangement of the large-opening well in the high-standard farmland area is very necessary, and the method is another effective way for strengthening agricultural infrastructure construction, improving agricultural production conditions, improving agricultural lands and the like. The connection of the large-mouth well and the head hub of the underground pipeline is a key part for ensuring the irrigation quality, and the stability of the whole system is ensured due to a reasonable head hub structure. The irrigation efficiency can be improved.

Disclosure of Invention

To above problem, the utility model provides a prelude pivot structure that major possession well and underground piping are connected, including major possession well, connecting tube, valve well, outlet conduit, connecting tube is "nearly" word and connects major possession well and valve well, and the major possession well is inside to be equipped with the immersible pump, and the immersible pump passes through connecting tube and is connected with the valve well, is equipped with outlet conduit in the valve well, and outlet conduit one end is connected with connecting tube, and the other end runs through the valve wall of a well, is equipped with check valve, gate valve, manometer and water gauge on the outlet conduit. The utility model discloses an above-mentioned structure, it is poor to have solved among the prior art earth's surface irrigation condition, irrigates technical problem such as water utilization efficiency hangs down.

In order to realize the purpose, the utility model discloses a technical scheme be: a first junction structure for connecting a large-mouth well and an underground pipeline comprises the large-mouth well, a connecting pipeline, a valve well and a water outlet pipeline, wherein the connecting pipeline is in a 'nearly' shape and is connected with the large-mouth well and the valve well, a submersible pump is arranged in the large-mouth well and is connected with the valve well through the connecting pipeline, the water outlet pipeline is arranged in the valve well, one end of the water outlet pipeline is connected with the connecting pipeline, the other end of the water outlet pipeline penetrates through the wall of the valve well, and a check valve, a gate valve, a pressure gauge and a water meter.

The wellhead is arranged above the large-mouth well and is positioned above the ground, and the bottom of the well is positioned above the impervious layer.

The large-mouth well shaft is of a reinforced concrete structure, the thickness of the large-mouth well shaft is 300mm, the well diameter is 3000mm, and a reverse filter layer with the thickness of 500mm is paved at the bottom of the well. The inverted filter layer is concave type, and the material setting from bottom to top is respectively: 200mm coarse sand, 150mm medium sand and 150mm fine sand.

The submersible pump is positioned below the dynamic water level.

The well head be higher than ground 500mm, well head diameter equals the well head diameter, the well lid is established to well head top, and the well lid adopts C20 reinforced concrete structure, and thickness is 120mm, reserves 500mm export above the well lid.

The valve well adopts a brick structure, the length of the valve well is 1.24m, the width of the valve well is 1.24m, the well depth exceeds the local maximum freeze-thaw depth, the well wall thickness is 0.24m, a coarse sand cushion layer with the thickness of 100mm is paved at the well bottom, a concrete cover plate is arranged above the well mouth of the valve well, and the thickness of the cover plate is 100 mm.

The pipe diameters of the connecting pipeline and the water outlet pipeline correspond to the designed flow.

The buried depth of the water outlet pipeline exceeds the local maximum freeze-thaw depth.

The utility model discloses a prelude pivot structure, when reaching the irrigation requirement, it is lower to have cost of maintenance expense, the higher characteristics of water resource utilization rate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

A first part pivot structure for connecting a large-mouth well and an underground pipeline comprises a large-mouth well 1, a connecting pipeline 5, a valve well 12 and a water outlet pipeline 10, wherein the connecting pipeline 5 is in a shape like a Chinese character 'ji' and is connected with the large-mouth well 1 and the valve well 12, a submersible pump 2 is arranged inside the large-mouth well 1, the submersible pump 2 is connected with the valve well 12 through the connecting pipeline 5, the water outlet pipeline 10 is arranged in the valve well 12, one end of the water outlet pipeline 10 is connected with the connecting pipeline 5, the other end of the water outlet pipeline penetrates through the wall of the valve well 12, and a check valve 6, a gate valve 7, a pressure gauge.

The wellhead 3 is arranged above the large-mouth well 1, the wellhead 3 is positioned above the ground, and the bottom of the well is positioned above the impervious layer.

The well 1 of the large-mouth well is of a reinforced concrete structure, the thickness is 300mm, the well diameter is 3000mm, and a reverse filter layer 14 with the thickness of 500mm is paved at the bottom of the well. The inverted filter layer 14 is concave, and the material settings from bottom to top are respectively: 200mm coarse sand, 150mm medium sand and 150mm fine sand.

The submersible pump 2 is positioned below the dynamic water level.

Well head 3 be higher than ground 500mm, well head 3 diameter equals well head diameter, well lid 4 is established to well head 3 top, well lid 4 adopts C20 reinforced concrete structure, and thickness is 120mm, reserves 500mm export 4-1 above well lid 4.

The valve well 12 is of a brick structure, the length of the valve well is 1.24m, the width of the valve well is 1.24m, the well depth exceeds the local maximum freeze-thaw depth, the well wall thickness is 0.24m, a coarse sand cushion layer 13 with the thickness of 100mm is paved at the bottom of the well, a concrete cover plate 11 is arranged above the well mouth of the valve well 12, and the thickness of the cover plate 11 is 100 mm.

The pipe diameters of the connecting pipeline 5 and the water outlet pipeline 10 correspond to the designed flow.

The outlet conduit 10 is buried deeper than the local maximum freeze-thaw depth.

The specific implementation steps are as follows:

1. and determining the well depth according to factors such as the buried depth of the aquifer, the water level variation amplitude, the designed water level drop, the water depth under the low valve of the water suction pipe, the construction conditions and the like.

2. And pouring concrete in the shaft with the hooping and the template, wherein the thickness of the concrete is 300mm, the well head needs to be 500mm higher than the ground, and a 500mm inverted filter layer is placed at the bottom of the well.

3. And selecting the type of the submersible pump according to the maximum design flow.

4. And determining the maximum freezing and thawing depth of the construction area, wherein the valve well depth should exceed the local maximum freezing and thawing depth by at least 0.5 m. The valve well sampling brick structure is 1.24m long, 1.24m wide and 0.24m thick, and a coarse sand cushion layer with the thickness of 100mm is paved at the bottom of the well.

5. And determining the pre-buried depth of the water outlet pipeline according to the maximum freeze-thaw depth, installing a connecting pipeline to communicate the large-mouth well with the valve well, and installing a check valve, a gate valve, a pressure meter and a water meter.

Claims

1. A head pivot structure for connecting a large well and an underground pipeline, characterized in that it comprises a large well (1), a connecting pipeline (5), a valve well (12), and a water outlet pipeline (10), and the connecting pipeline (5) is in the form of a The character "ji" connects the large well (1) and the valve well (12), the large well (1) is provided with a submersible pump (2), and the submersible pump (2) is connected to the valve well (12) through the connecting pipe (5), The valve well (12) is provided with a water outlet pipe (10), one end of the water outlet pipe (10) is connected with the connecting pipe (5), the other end penetrates the wall of the valve well (12), and the water outlet pipe (10) is provided with a check valve ( 6), gate valve (7), pressure gauge (8) and water meter (9).

2. A head hinge structure for connecting a large well with an underground pipeline according to claim 1, characterized in that: a well head (3) is arranged above the large well (1), and the well head (3) is located above the ground , the bottom of the well is above the impermeable layer.

3. A head hinge structure for connecting a large well with an underground pipeline according to claim 1, characterized in that: the wellbore of the large well (1) is a reinforced concrete structure, the thickness is 300mm, the diameter of the well is 3000mm, and the bottom of the well is 300mm thick. A 500mm thick anti-filter layer (14) is laid, and the anti-filter layer (14) is concave. The material settings from bottom to top are: 200mm coarse sand, 150mm medium sand, and 150mm fine sand.

4 . The head pivot structure for connecting a large well with an underground pipeline according to claim 1 , wherein the submersible pump ( 2 ) is located below the moving water level. 5 .

5. A head hinge structure for connecting a large well with an underground pipeline according to claim 2, characterized in that: the well head (3) is 500 mm higher than the ground, the diameter of the well head is equal to the diameter of the well head, and the well head ( 3) A manhole cover (4) is set above, and the manhole cover (4) adopts a C20 reinforced concrete structure with a thickness of 120mm. A 500mm×500mm outlet (4-1) is reserved above the manhole cover (4).

6. A head pivot structure for connecting a large well with an underground pipeline according to claim 1, characterized in that: the valve well (12) adopts a brick structure, 1.24m long, 1.24m wide, and the well depth exceeds the local maximum freezing point. The thickness of the well wall is 0.24m, the bottom of the well is covered with a 100mm thick sand cushion (13), the valve well (12) is provided with a concrete cover plate (11) above the wellhead, and the thickness of the cover plate (11) is 100mm.

7 . The head pivot structure for connecting a large well and an underground pipeline according to claim 1 , wherein the connecting pipeline ( 5 ) and the water outlet pipeline ( 10 ) have a diameter corresponding to the design flow. 8 .

8 . The head pivot structure for connecting a large well with an underground pipeline according to claim 1 , wherein the water outlet pipeline ( 10 ) is buried deeper than the local maximum freezing and thawing depth. 9 .