Large-diameter, large-flow, high-pressure and high-rotating-speed rotating joint and washing pipe assembly device

Abstract

The utility model provides a large-diameter, large-flow, high-pressure and high-rotating-speed rotary joint and wash pipe assembly device, which is characterized in that a flange core pipe is fixedly arranged in an inner cavity of a core pipe seat sleeve I through a two-way core tapered roller bearing I and a two-way core tapered roller bearing II, and a core pipe flange seat II is arranged in the core pipe seat sleeve I; the flange core tube is isolated, sealed and filled with a two-way core tapered roller bearing I and a two-way core tapered roller bearing II on a core tube flange seat II through a sealing bush I, a sealing bush II, a sealing bush III, a bearing positioning sleeve, a sealing bush V and a sealing bush VI; the first bidirectional conical roller bearing and the second bidirectional conical roller bearing enable the flange core pipe to rotate at a high speed, the axis does not shake, and due to the fact that installation is convenient and fast, maintenance time is short, working pressure is high, and working life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe flushing equipment field especially relates to a large -diameter large -flow high -pressure high -speed rotary joint and pipe flushing assembly device. BACKGROUND

[0002] At present, the existing rotary joint and pipe flushing assembly device on the market are low -speed low -pressure small -diameter small -flow type, cannot adapt to the large -flow and high -speed rotation sealing demand working condition, and the device works under high -speed rotation and the axial line deflection shakes and causes the device leakage and the accessory wear and tear to be serious, and the greater the load inertia changes, thereby leading to the device leakage and the accessory wear and tear to be serious aggravation, causes the great inconvenience to the production and operation maintenance. SUMMARY

[0003] In order to solve above problem, the utility model provides a large -diameter large -flow high -pressure high -speed rotary joint and pipe flushing assembly device, it reasonable structure has solved above -mentioned problem.

[0004] The utility model discloses a large -diameter large -flow high -pressure high -speed rotary joint and pipe flushing assembly device, including flange core pipe, core pipe seat cover no. One, bearing seal plate no. One, sealing bush no. One, sealing bush no. Two, sealing bush no. Three, bearing positioning sleeve, bearing positioning lock piece, sealing bush no. Four, sealing bush no. Five, sealing bush no. Six, bearing limit baffle, core pipe flange seat no. One, oil seal no. One, oil seal no. Two, oil seal no. Three, oil seal no. Four, bearing seal plate no. Two, two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two, grease nipple, flange core pipe is fixedly installed in the inner chamber of core pipe seat cover no. One through two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two, be equipped with core pipe flange seat no. Two in core pipe seat cover no. One, and flange core pipe is isolated sealed filling two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two through sealing bush no. One, sealing bush no. Two, sealing bush no. Three, bearing positioning sleeve, sealing bush no. Five, sealing bush no. Six on core pipe flange seat no. Two, two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two make flange core pipe high -speed rotation and the axial center not shake;

[0005] Optional, sealing bush no. One, sealing bush no. Two, sealing bush no. Three, bearing positioning sleeve, sealing bush no. Five, sealing bush no. Six make flange core pipe multiple effective sealing in the inner chamber of core pipe seat cover no. One;

[0006] Optional, be equipped with two grease nipples in core pipe seat cover no. One and regularly inject grease lubrication two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two, sealing bush no. One, sealing bush no. Two, sealing bush no. Three, bearing positioning sleeve, sealing bush no. Five, sealing bush no. Six guarantee oil lubrication degree.

[0007] Optional, two -way heart conical roller bearing no. One, two -way heart conical roller bearing no. Two double -bearing structure positioning effective guarantee highest speed ≥450rpm;

[0008] Optionally, the sealing bush one, the sealing bush two, the sealing bush three, the bearing positioning sleeve, the sealing bush five, the sealing bush six multiple skeleton stack sealing structure ensures that the maximum working pressure is greater than or equal to 450 bar;

[0009] Optionally, the flange core pipe, the core pipe seat sleeve one, the core pipe flange seat one flange disc type end face sealing coupling mode is achieved to the minimum diameter greater than or equal to DN95mm.

[0010] Optionally, the bearing positioning lock plate, the sealing bush four, the sealing bush five, the sealing bush six, the bearing limiting baffle are respectively provided with oil seals one, oil seals two, oil seals three, oil seals four to ensure isolation sealing.

[0011] Optionally, the bidirectional center conical roller bearing one and the core pipe seat sleeve one, the core pipe flange seat two are provided with bearing sealing plates one and two.

[0012] Compared with the prior art, the utility model has the advantages that it mainly plays a crucial role in the process of oil and gas drilling. It is mainly used for connecting the gooseneck pipe and the central pipe rotating relative to the gooseneck pipe, conveying the high-pressure mud output by the drilling pump to the downhole drill bit. With the increase of drilling depth and horizontal section, and the requirement of drilling speed increasing, the pump pressure of the mud and the rotating speed of the central pipe are continuously improved. The mechanical seal flush pipe assembly device is gradually replaced by the traditional packing seal flush pipe device due to its convenient and quick installation, less maintenance time, high working pressure and long working life. The maximum effect protection can be obtained in high-speed rotation and sealing connection. In the rotating process of the device, the center line of the assembly device is always stable, and there is no large deflection and shaking. At the same time, in the installation and connection of the assembly device, the SAE standard flange disc type structure effectively reduces the axial jump impact change, and safely and effectively guarantees the highest rotating speed: greater than or equal to 450 rpm, the maximum pressure is greater than or equal to 450 bar, and the minimum diameter is greater than or equal to DN95mm. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below according to the drawings:

[0014] Figure 1 It is the structure diagram of the utility model;

[0015] Figure 1Flange core pipe 1, core pipe seat cover 2, bearing sealing plate 1 3, sealing bush 1 4, sealing bush 2 5, sealing bush 3 6, bearing positioning sleeve 7, bearing positioning lock plate 8, sealing bush 4 9, sealing bush 5 10, sealing bush 6 1 1, bearing limiting baffle 1 2, core pipe flange seat 1 3, oil seal 1 4, oil seal 2 1 5, oil seal 3 1 6, oil seal 4 1 7, bearing sealing plate 2 1 8, bidirectional center tapered roller bearing 1 9, bidirectional center tapered roller bearing 2 0, grease nipple 22, core pipe flange seat 2 1. DETAILED DESCRIPTION

[0016] The utility model will be made further detailed explanation in combination with the figure, it is to explain that the figure is only used for the utility model, is the illustrative explanation to the utility model embodiment, and can not be understood as the limitation of the utility model.

[0017] In the description of the utility model, it is to explain that, unless another explicit provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can indirectly connect through the intermediate medium. For the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0018] Example 1

[0019] As Figure 1As shown, a large-diameter large-flow high-pressure high-speed rotary joint and pipe assembly device, including flange core pipe 1, core pipe seat sleeve one 2, bearing sealing plate one 3, sealing bush one 4, sealing bush two 5, sealing bush three 6, bearing positioning sleeve 7, bearing positioning lock piece 8, sealing bush four 9, sealing bush five 10, sealing bush six 11, bearing limiting stop piece 12, core pipe flange seat one 13, oil seal one 14, oil seal two 15, oil seal three 16, oil seal four 17, bearing sealing plate two 18, bidirectional center tapered roller bearing one 19, bidirectional center tapered roller bearing two 20, grease nipple 22, flange core pipe 1 is fixedly installed in the inner cavity of core pipe seat sleeve one 2 through bidirectional center tapered roller bearing one 19 and bidirectional center tapered roller bearing two 20, core pipe seat sleeve one 2 is provided with core pipe flange seat two 21, flange core pipe 1 is isolated and sealed in core pipe flange seat two 21 through sealing bush one 4, sealing bush two 5, sealing bush three 6, bearing positioning sleeve 7, sealing bush five 10, sealing bush six 11, filling bidirectional center tapered roller bearing one 19 and bidirectional center tapered roller bearing two 20, bidirectional center tapered roller bearing one 19 and bidirectional center tapered roller bearing two 20 make flange core pipe 1 high-speed rotation and shaft center not shake; optionally, the sealing bush one 4, sealing bush two 5, sealing bush three 6, bearing positioning sleeve 7, sealing bush five 10, sealing bush six 11 make flange core pipe 1 multiple effective sealing in the inner cavity of core pipe seat sleeve one 2, to ensure that there is no leakage under high-speed rotation can be sealed work with large pressure and large flow; optionally, the core pipe seat sleeve one 2 is provided with two grease nipples 22 for regular grease injection to bidirectional center tapered roller bearing one 19, bidirectional center tapered roller bearing two 20, sealing bush one 4, sealing bush two 5, sealing bush three 6, bearing positioning sleeve 7, sealing bush five 10, sealing bush six 11, to ensure that the oil lubrication degree is reduced to reduce dry wear, prolong the service life of the element. Optionally, the bidirectional center tapered roller bearing one 19 and bidirectional center tapered roller bearing two 20 are double-bearing structure positioning effective to ensure that the highest speed is greater than or equal to 450 rpm; optionally, the sealing bush one 4, sealing bush two 5, sealing bush three 6, bearing positioning sleeve 7, sealing bush five 10, sealing bush six 11 multiple skeleton stack sealing structure ensure that the maximum working pressure is greater than or equal to 450 bar; optionally, the flange core pipe 1, core pipe seat sleeve one 2, core pipe flange seat 13 flange plate type end face sealing coupling mode to the minimum diameter is greater than or equal to DN95mm. Optionally, the bearing positioning lock piece 8, sealing bush four 9, sealing bush five 10, sealing bush six 11, bearing limiting stop piece 12 are respectively provided with oil seal one 14, oil seal two 15, oil seal three 16, oil seal four 17 to ensure isolation sealing. Optionally, the bidirectional center tapered roller bearing one 19 and the core pipe seat sleeve one 2, core pipe flange seat two 21 are provided with bearing sealing plate one 3 and bearing sealing plate two 18.

[0020] The utility model mainly plays a vital role in the process of oil and natural gas drilling. It is mainly used for connecting the gooseneck pipe and the central pipe rotating relative to the gooseneck pipe, and conveying the high-pressure mud output by the drilling pump to the downhole drill bit. With the increase of drilling depth and horizontal section, and the increase of drilling speed and efficiency, the pump pressure of mud and the rotating speed of central pipe are constantly improved. The mechanical seal flush pipe assembly device gradually replaces the traditional packing seal flush pipe device due to its convenient and fast installation, less maintenance time, high working pressure and long working life. In high-speed rotation and sealing connection, the maximum effect protection can be obtained. In the rotating process of the device, the center line of the assembly device is always stable and uniform, and there is no large deflection and shaking. At the same time, in the installation and connection of the assembly device, the SAE standard flange plate structure effectively reduces the axial jump impact change, and safely and effectively guarantees the maximum rotating speed: ≥450 rpm, the maximum pressure: ≥450 bar, and the minimum diameter: ≥DN95 mm.

[0021] The above is the embodiment of the utility model, and is not used for limiting the present application. For the person skilled in the art, the utility model can have various improvements and changes. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be contained in the claim range of the utility model.

Claims

1. A large-diameter, large-flow, high-pressure, high-speed rotary joint and a pipe assembly device, comprising a flange core pipe (1), a core pipe seat sleeve one (2), a bearing sealing plate one (3), a sealing bush one (4), a sealing bush two (5), a sealing bush three (6), a bearing positioning sleeve (7), a bearing positioning lock plate (8), a sealing bush four (9), a sealing bush five (10), a sealing bush six (11), a bearing limiting baffle (12), a core pipe flange seat one (13), an oil seal one (14), an oil seal two (15), an oil seal three (16), an oil seal four (17), a bearing sealing plate two (18), a bidirectional center tapered roller bearing one (19), a bidirectional center tapered roller bearing two (20), a grease nipple (22), characterized in that: Flange core pipe (1) is fixedly installed in the inner cavity of core pipe seat sleeve one (2) through bidirectional tapered roller bearing one (19) and bidirectional tapered roller bearing two (20), the inner cavity of core pipe seat sleeve one (2) is provided with core pipe flange seat two (21), flange core pipe (1) is isolated and sealed filling bidirectional tapered roller bearing one (19) and bidirectional tapered roller bearing two (20) on core pipe flange seat two (21) through sealing bush one (4), sealing bush two (5), sealing bush three (6), bearing positioning sleeve (7), sealing bush five (10), sealing bush six (11), and bidirectional tapered roller bearing one (19) and bidirectional tapered roller bearing two (20) make flange core pipe (1) high-speed rotation and axis not shake.

2. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The sealing bush one (4), sealing bush two (5), sealing bush three (6), bearing positioning sleeve (7), sealing bush five (10), sealing bush six (11) make flange core pipe (1) multiple effective sealing in the inner cavity of core pipe seat sleeve one (2).

3. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The inner cavity of core pipe seat sleeve one (2) is provided with two grease nipples (22) for regular grease injection to bidirectional tapered roller bearing one (19), bidirectional tapered roller bearing two (20), sealing bush one (4), sealing bush two (5), sealing bush three (6), bearing positioning sleeve (7), sealing bush five (10), sealing bush six (11) to ensure oil lubrication degree.

4. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein The bidirectional tapered roller bearing one (19) and bidirectional tapered roller bearing two (20) are double-bearing structure positioning effective to ensure that the highest rotation speed is greater than or equal to 450 rpm.

5. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The sealing bush one (4), sealing bush two (5), sealing bush three (6), bearing positioning sleeve (7), sealing bush five (10), sealing bush six (11) are multiple skeleton stack sealing structures to ensure that the maximum working pressure is greater than or equal to 450 bar.

6. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The flange core pipe (1), core pipe seat sleeve one (2) and core pipe flange seat one (13) are flange plate type end face sealing coupling, and the minimum diameter is greater than or equal to DN95mm.

7. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The bearing positioning lock plate (8), sealing bush four (9), sealing bush five (10), sealing bush six (11) and bearing limiting baffle (12) are respectively provided with oil seal one (14), oil seal two (15), oil seal three (16), oil seal four (17) to ensure isolation sealing.

8. The large-bore, high-flow, high-pressure, high-rotation speed rotary union and ram assembly of claim 1, wherein: The bidirectional tapered roller bearing one (19) is provided with bearing sealing plate one (3) and bearing sealing plate two (18) at the connection with core pipe seat sleeve one (2) and core pipe flange seat two (21).

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