阅读说明：本技术 一种穿越河流天然气管道保护装置 (River-crossing natural gas pipeline protection device ) 是由 石晓栊 梁光川 陈文鑫 于 2021-03-19 设计创作，主要内容包括：本发明涉及一种穿越河流天然气管道保护装置,主要由垫层、保护层、套管、固定装置、支撑装置和报警装置组成。垫层贴在管道表面,外部依次设置保护层、套管。套管由上套管和下套管组成,由固定装置固定。固定装置由从上套管上方穿入的上支杆和下套管下方的垫片、弹簧片、螺帽组成。支撑装置由下支杆、楔子、底板和插销组成,下支杆上端由楔子固定在上支杆上,下端焊接在底板上,插销将底板固定在地面上。报警装置由压力传感器保护套、压力传感器、数据传输线、报警器保护套和报警器组成,位于下套管下端。支撑装置防止管道漂浮,套管、保护层、垫层防止外力破坏管道,报警装置监测压力变化并报警。本发明保护效果好、能提供报警功能。(The invention relates to a river-crossing natural gas pipeline protection device which mainly comprises a cushion layer, a protection layer, a sleeve, a fixing device, a supporting device and an alarm device. The cushion layer is attached to the surface of the pipeline, and the protective layer and the sleeve are sequentially arranged outside the cushion layer. The sleeve consists of an upper sleeve and a lower sleeve which are fixed by a fixing device. The fixing device consists of an upper support rod penetrating from the upper part of the upper sleeve, a gasket, a spring piece and a nut, wherein the gasket, the spring piece and the nut are arranged below the lower sleeve. The supporting device consists of a lower supporting rod, a wedge, a bottom plate and a bolt, wherein the upper end of the lower supporting rod is fixed on the upper supporting rod through the wedge, the lower end of the lower supporting rod is welded on the bottom plate, and the bottom plate is fixed on the ground through the bolt. The alarm device consists of a pressure sensor protective sleeve, a pressure sensor, a data transmission line, an alarm protective sleeve and an alarm, and is positioned at the lower end of the lower sleeve. The supporting device prevents the pipeline from floating, the sleeve, the protective layer and the cushion layer prevent the pipeline from being damaged by external force, and the alarm device monitors pressure change and gives an alarm. The invention has good protection effect and can provide an alarm function.)

1. A natural gas pipeline protection device for crossing rivers is characterized in that: the protective layer (3) is arranged outside the cushion layer (2), and the sleeve (4) is arranged outside the protective layer (3); the sleeve (4) is composed of an upper sleeve (41) and a lower sleeve (42), the upper sleeve (41) is trapezoidal, flat plates with round small holes are arranged on two sides of the upper sleeve, the lower sleeve (42) is trapezoidal, flat plates with round small holes are arranged on two sides of the lower sleeve, an alarm device (7) is arranged below the lower sleeve (42), and the upper sleeve (41) and the lower sleeve (42) are fixed by a fixing device (5); the fixing device (5) consists of an upper support rod (51), a gasket (52), a spring leaf (53) and a screw cap (54), the lower end of the upper support rod (51) is hollow, the upper support rod (51) penetrates through the round small holes of the upper sleeve (41) and the lower sleeve (42) from the upper part, sequentially passes through the gasket (52) and the spring leaf (53) and is fixed by the screw cap (54), and the lower end of the upper support rod (51) is provided with a supporting device (6); the supporting device (6) consists of a lower supporting rod (61), a wedge (62), a bottom plate (63) and a bolt (64), wherein the upper end of the lower supporting rod (61) is screwed into the lower end of the upper supporting rod (51) and is fixed by the wedge (62), the lower end of the lower supporting rod is welded on the bottom plate (63), and the bottom plate (63) is fixed on the ground by the bolt (64); alarm device (7) comprise pressure sensor protective sheath (71), pressure sensor (72), data transmission line (73), alarm protective sheath (74), alarm (75), pressure sensor protective sheath (71), alarm protective sheath (74) are located down around sleeve pipe (42) lower extreme respectively, place pressure sensor (72) in pressure sensor protective sheath (71), place alarm (75) in alarm protective sheath (74), pressure sensor (72) and alarm (75) link together through data transmission line (73).

2. The river-crossing natural gas pipeline protection device according to claim 1, wherein: the front and the rear of the upper part of the upper sleeve (41) are provided with bulges with small holes, and the front sleeve and the rear sleeve (4) can be connected through the small holes on the bulges.

Technical Field

The invention relates to the field of natural gas pipeline protection, in particular to a river-crossing natural gas pipeline protection device.

Background

The pipeline is one of the most main modes for conveying natural gas, and as the mileage of the natural gas pipeline increases year by year, the natural gas pipeline inevitably penetrates water areas such as rivers, soil above the pipeline is easy to run off due to the scouring action of water flow, so that the pipeline is exposed or even suspended, the safe operation of the pipeline is seriously threatened, and the conventional pipeline protection device is difficult to provide enough protection for the natural gas pipeline penetrating rivers, so that the river-penetrating natural gas pipeline protection device needs to be developed.

Disclosure of Invention

The invention aims to overcome the defects of the existing pipeline protection device in the market and provide a river-crossing natural gas pipeline protection device which has a good protection effect and can provide an alarm function.

The technical scheme adopted by the invention is as follows:

the invention relates to a river-crossing natural gas pipeline protection device which mainly comprises a cushion layer, a protection layer, a sleeve, a fixing device, a supporting device and an alarm device. The cushion layer is rectangular and made of flexible materials, clings to the surface of the pipeline, and a protective layer is arranged outside the cushion layer. The protective layer is made of elastic materials, one side of the protective layer is tightly attached to the surface of the gasket, and the other side of the protective layer is adhered to the inner portion of the sleeve. The sleeve pipe comprises upper casing and lower casing, and the upper casing is trapezoidal, and both sides all have a flat board of a circular aperture, all have a arch of a circular aperture around the upper casing top, can couple together front and back sleeve pipe through the aperture on the arch, and the lower casing is trapezoidal, and both sides all have a flat board of a circular aperture, and alarm device is installed to the lower casing below, and the circular aperture of upper casing, lower casing is upper and lower to be aimed at, is fixed by fixing device. The fixing device is composed of an upper supporting rod, a gasket, a spring piece and a nut, the lower end of the upper supporting rod is hollow, a round hole is formed in the surface of the upper supporting rod, the upper supporting rod penetrates through the round small holes of the upper sleeve and the lower sleeve from the upper side, the upper supporting rod sequentially passes through the gasket and the spring piece and is fixed by the nut, and the supporting device is installed at the lower end of the upper supporting rod. The support device comprises lower branch, wedge, bottom plate, bolt, and lower branch upper end is the screw thread form, and screw in goes up the branch lower extreme, is fixed by the wedge that penetrates the round hole, and lower branch lower extreme welds on the bottom plate, and the bottom plate is the rectangle, respectively has a aperture all around, and the bolt inserts from aperture top, fixes the bottom plate subaerial. The alarm device comprises a pressure sensor protective sleeve, a pressure sensor, a data transmission line, an alarm protective sleeve and an alarm, wherein the pressure sensor protective sleeve and the alarm protective sleeve are respectively positioned in the front and at the back of the lower end of the lower sleeve, the pressure sensor is placed in the pressure sensor protective sleeve, the alarm is placed in the alarm protective sleeve, and the pressure sensor and the alarm are connected together through the data transmission line.

During installation, the protective layer is firstly adhered to the inner parts of the upper sleeve and the lower sleeve, the bottom plate is placed on flat soil, the lower end of the lower support rod is welded on the bottom plate, then the circular small holes in the screw cap, the spring piece, the gasket and the lower sleeve penetrate into the lower support rod in sequence, then the cushion layer is placed on the protective layer in the lower sleeve, and the pipeline is placed on the cushion layer. After the pipeline is placed, the cushion layer and the upper sleeve above the pipeline are sequentially placed, and the round small holes of the upper sleeve and the lower sleeve are aligned. After alignment, the upper supporting rod penetrates into the round small hole from the upper side, the lower end of the upper supporting rod is screwed into the upper end of the lower supporting rod, the upper sleeve and the lower sleeve are fixed by screwing the screw cap, and then the upper supporting rod and the lower supporting rod are fixed by using the wedge. After the sleeve, the fixing device and the supporting device are installed, the pressure sensor protective sleeve and the alarm protective sleeve are respectively stuck to the front and the back of the lower end of the lower sleeve, the pressure sensor and the alarm are respectively placed on the pressure sensor protective sleeve and the alarm protective sleeve and are connected through the data transmission line, and then the installation work of the river natural gas pipeline protection device can be completed. The supporting device prevents the pipeline from floating, the sleeve, the protective layer and the cushion layer can prevent the pipeline from being damaged by external force, and the alarm device can monitor the pressure change below the pipeline and provide an alarm function.

The invention has the advantages that: the protection effect is good, and an alarm function can be provided.

Drawings

Fig. 1 is a river-crossing natural gas pipeline protection device of the invention.

Fig. 2 is a sectional view of fig. 1 (a-a).

In the figure: 1. the pipeline, 2, a cushion layer, 3, a protective layer, 4, a sleeve, 5, a fixing device, 6, a supporting device, 7, an alarm device, 41, an upper sleeve, 42, a lower sleeve, 51, an upper support rod, 52, a gasket, 53, a spring leaf, 54, a nut, 61, a lower support rod, 62, a wedge, 63, a bottom plate, 64, a bolt, 71, a pressure sensor protective sleeve, 72, a pressure sensor, 73, a data transmission line, 74, an alarm protective sleeve and 75, wherein the lower support rod is fixed on the lower support rod through the bolt, the upper support rod is fixed on.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the natural gas pipeline protection device for river crossing mainly comprises a cushion layer 2, a protection layer 3, a sleeve 4, a fixing device 5, a supporting device 6 and an alarm device 7. The cushion layer 2 is rectangular and made of flexible materials, the cushion layer 2 is tightly attached to the surface of the natural gas pipeline 1, and the protective layer 3 is arranged outside the cushion layer 2. The protective layer 3 is made of elastic material, one side of the protective layer 3 is tightly attached to the surface of the gasket 2, and the other side of the protective layer is adhered to the inside of the sleeve 4. The sleeve 4 is composed of an upper sleeve 41 and a lower sleeve 42, the upper sleeve 41 is trapezoidal, flat plates with round holes are arranged on two sides of the upper sleeve 41, protrusions with holes are arranged on the upper portion of the upper sleeve 41 in the front and the rear, the front sleeve and the rear sleeve can be connected through the holes in the protrusions, the lower sleeve 42 is trapezoidal, flat plates with round holes are arranged on two sides of the lower sleeve 42, an alarm device is arranged below the lower sleeve 42, and the round holes of the upper sleeve 41 and the lower sleeve 42 are aligned up and down and fixed through a fixing device 5. The fixing device 5 consists of an upper supporting rod 51, a gasket 52, a spring piece 53 and a nut 54, wherein the lower end of the upper supporting rod 51 is hollow, the surface of the upper supporting rod 51 is provided with a round hole, the upper supporting rod 51 penetrates through round small holes of the upper sleeve 41 and the lower sleeve 42 from the upper part, the round small holes sequentially pass through the gasket 52 and the spring piece 53 and are fixed by the nut 54, and the lower end of the upper supporting rod 51 is provided with the supporting device 6. The supporting device 6 is composed of a lower supporting rod 61, a wedge 62, a bottom plate 63 and a bolt 64, wherein the upper end of the lower supporting rod 61 is in a thread shape, the lower end of the upper supporting rod 51 is screwed in and fixed by the wedge 62 penetrating into a round hole, the lower end of the lower supporting rod 61 is welded on the bottom plate 63, the bottom plate 63 is in a rectangular shape, the periphery of the bottom plate is respectively provided with a small hole, and the bolt 64 is inserted from the upper part of the small hole to fix the bottom. The alarm device 7 is composed of a pressure sensor protective sleeve 71, a pressure sensor 72, a data transmission line 73, an alarm protective sleeve 74 and an alarm 75, wherein the pressure sensor protective sleeve 71 and the alarm protective sleeve 74 are respectively positioned in the front and at the back of the lower end of the lower sleeve 42, the pressure sensor 72 is placed in the pressure sensor protective sleeve 71, the alarm 75 is placed in the alarm protective sleeve 74, and the pressure sensor 72 and the alarm 75 are connected together through the data transmission line 73.

During installation, the protective layer 3 is firstly adhered to the inner parts of the upper sleeve 41 and the lower sleeve 42, the bottom plate 63 is placed on flat soil, the lower end of the lower support rod 61 is welded on the bottom plate 63, then the screw cap 54, the spring piece 53, the gasket 52 and the round small holes in the lower sleeve 42 penetrate into the lower support rod 61 in sequence, then the cushion layer 2 is placed on the protective layer 3 in the lower sleeve 42, and the pipeline 1 is placed on the cushion layer 2. After the pipeline 1 is placed, the cushion layer 2 and the upper sleeve 41 above the pipeline 1 are sequentially placed, and the round small holes of the upper sleeve 41 and the lower sleeve 42 are aligned. After alignment, the upper rod 51 is inserted into the circular hole from above, the lower end of the upper rod 51 is screwed into the upper end of the lower rod 61, the upper sleeve 41 and the lower sleeve 42 are fixed by tightening the nut 54, and then the upper rod 51 and the lower rod 61 are fixed by using the wedge 62. After the sleeve 4, the fixing device 5 and the supporting device 6 are installed, the pressure sensor protective sleeve 71 and the alarm protective sleeve 74 are respectively adhered to the front and the back of the lower end of the lower sleeve 42, the pressure sensor 72 and the alarm 75 are respectively placed on the pressure sensor protective sleeve 71 and the alarm protective sleeve 74 and are connected through the data transmission line 73, and then the installation work of the river-crossing natural gas pipeline protection device can be completed. The supporting device 6 prevents the pipeline 1 from floating, the sleeve 4, the protective layer 3 and the cushion layer 2 can prevent the pipeline 1 from being damaged by external force, and the alarm device 7 can monitor the pressure change below the pipeline 1 and provide an alarm function.