Erosion-resistant efficient ejector

Abstract

The utility model relates to the technical field of oil and gas field fracturing equipment, and provides an anti-erosion efficient ejector which comprises an ejector body, the bottom of the ejector body is fixedly connected with a threaded block A, the top of the ejector body is fixedly connected with an installation block, the top of the installation block is fixedly connected with a threaded block B, and the threaded block A is fixedly connected with a threaded block B; an anti-erosion mechanism is arranged on the surface of the ejector main body; by arranging the anti-erosion mechanism, the ejector main body can be protected through the protective sleeve, the ejector main body is prevented from being directly damaged by back-splashed silt, the protective sleeve can move downwards to be separated from the mounting block by pulling the pull rods on the two sides when the ejector needs to be disassembled, and disassembly is convenient. During reinstallation, the head of the protective sleeve is inserted into the bottom slot of the installation block, and the arc-shaped block can be automatically clamped into the surface ring groove of the protective sleeve, so that the protective sleeve cannot move downwards to be separated from the installation block. The mounting and dismounting are simple, and the later maintenance and replacement are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas field fracturing equipment, and in particular to a high-efficiency ejector with erosion resistance. Background Art

[0002] Ejector, also known as ejector, jet vacuum pump, jet vacuum ejector, jet pump, water ejector, vacuum ejector, is a vacuum acquisition device that uses fluid to transfer energy and mass. It uses water flow with a certain pressure to be ejected through nozzles that are symmetrically distributed with a certain side slope and converge at a focus. Since the jet water flow rate is particularly high, the pressure energy is converted into velocity energy, which reduces the pressure in the suction area and produces a vacuum.

[0003] The utility model with publication number CN216110659U discloses an erosion-resistant hydraulic fracturing injector, including an injector body, a protective sleeve, a nozzle and a centralizer; the centralizer is located on the outer wall of the peripheral side of the injector body and is used to centralize the injector body; the injector body is a hollow structure, and a channel is provided inside for fluid flow. The upper and lower ends of the injector body are provided with connecting ends for connection with a pipe column or other equipment. In the above application documents, each block structure can be moved radially along the injector body to complete installation or disassembly, but its installation is more troublesome, and leakage is prone to occur at the through hole, which is not conducive to daily use. Utility Model Content

[0004] The utility model provides a high-efficiency ejector with erosion resistance, which solves the problems of troublesome installation, easy leakage at the through hole and disadvantageous for daily use.

[0005] The technical solution of the utility model is as follows:

[0006] A high-efficiency injector with erosion resistance comprises an injector body, a threaded block A is fixedly connected to the bottom of the injector body, a mounting block is fixedly connected to the top of the injector body, a threaded block B is fixedly connected to the top of the mounting block, and an erosion resistance mechanism is arranged on the surface of the injector body; the erosion resistance mechanism comprises a protective sleeve and a slot, an annular groove is arranged on the surface of the protective sleeve, the slot is arranged at the bottom of the mounting block, a compression spring is fixedly connected to the top of the slot, a groove is arranged on the inner wall of the slot, a telescopic spring is arranged inside the groove, an arc block is slidably connected to the inside of the groove via the telescopic spring, a pull rod is fixedly connected to one end of the arc block close to the telescopic spring, the pull rod penetrates and is slidably connected to the mounting block, and an anti-falling mechanism is arranged at the bottom of the mounting block.

[0007] The top of the protective cover is initially located in the slot, and the compression spring is initially in a compressed state. When the compression spring rebounds, it drives the protective cover to move downward out of the slot.

[0008] In the initial state, one half of the arc block is located in the annular groove, the longitudinal width of the annular groove is equal to the longitudinal width of the groove, and the arc block is stuck in the annular groove so that the protective sleeve cannot move downward.

[0009] The arc surface of the arc block faces downward, and the transverse length of the groove is greater than the transverse length of the arc block. When the arc surface of the arc block is squeezed, it will move into the groove, and the arc block can be completely retracted into the groove.

[0010] The inner wall of the protective sleeve is in contact with the outer wall of the ejector body in an initial state, and the protective sleeve wraps the outer wall of the ejector body to prevent splashing mud and sand from directly damaging the ejector body.

[0011] The arc block is made of stainless steel, and the surface of the arc block is smooth. The arc block made of stainless steel has high strength and is not easy to rust.

[0012] The anti-falling mechanism includes a fixed plate and a deceleration ring, the top of the fixed plate and the bottom of the mounting block, the side of the fixed plate is fixedly connected with a connecting frame, the inner side of the connecting frame is rotatably connected with a contact plate, the side of the fixed plate is fixedly connected with a spring telescopic rod and a limiting rod, the end of the spring telescopic rod away from the fixed plate is fixedly connected to the top of the contact plate, and the deceleration ring is fixedly connected to the surface of the protective cover.

[0013] The end of the contact plate away from the connecting frame is arc-shaped, and the end of the contact plate away from the connecting frame is close to the reduction ring. When the protective cover moves, the reduction ring thereon is driven to contact the contact plate.

[0014] The material of the deceleration ring is rubber, and the number of the deceleration rings is set to three groups. When the rubber deceleration ring is squeezed with the contact plate, resistance is generated. The resistance brought by the three groups of deceleration rings slows down the speed of the protective cover when it moves downward.

[0015] One end of the limiting rod away from the fixing plate is close to the bottom of the contact plate. The limiting rod prevents the contact plate from deflecting downward.

[0016] The working principle and beneficial effects of the utility model are:

[0017] The utility model is provided with an anti-erosion mechanism, so that the injector body can be protected by the protective cover to prevent splashing mud and sand from directly damaging the injector body. When disassembly is required, the protective cover can be moved downward and separated from the mounting block by pulling the pull rods on both sides. When reinstalling, the head of the protective cover is inserted into the bottom slot of the mounting block, and the arc block will automatically snap into the ring groove on the surface of the protective cover so that the protective cover cannot move downward and separate from the mounting block. Thus, the installation is completed, and the installation and disassembly are simple, which is convenient for later maintenance and replacement. The utility model is provided with an anti-falling mechanism, so that when the protective cover is separated from the mounting block due to the rebound of the compression spring, the speed of separation of the protective cover from the mounting block will be slowed down by the cooperation of components such as the contact plate, the deceleration ring, and the spring telescopic rod, and the installation of the protective cover and the mounting block will not be greatly affected, which effectively prevents the protective cover from falling directly from the operator's hands and breaking when the speed is too fast when separating from the mounting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the anti-erosion mechanism of the utility model;

[0022] Figure 4 This is a partial structural diagram of the anti-erosion mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the anti-falling mechanism of the utility model.

[0024] In the figure: 1. injector body; 2. threaded block A; 3. mounting block; 4. threaded block B; 5. anti-erosion mechanism; 51. protective sleeve; 52. ring groove; 53. slot; 54. compression spring; 55. groove; 56. telescopic spring; 57. arc block; 58. pull rod; 6. anti-falling mechanism; 61. fixing plate; 62. connecting frame; 63. contact plate; 64. spring telescopic rod; 65. limiting rod; 66. deceleration ring. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 to Figure 5 As shown, this embodiment proposes an anti-erosion high-efficiency injector, including an injector body 1, a threaded block A2 is fixedly connected to the bottom of the injector body 1, a mounting block 3 is fixedly connected to the top of the injector body 1, a threaded block B4 is fixedly connected to the top of the mounting block 3, and an anti-erosion mechanism 5 is arranged on the surface of the injector body 1; the anti-erosion mechanism 5 includes a protective sleeve 51 and a slot 53, the inner wall of the protective sleeve 51 is in contact with the outer wall of the injector body 1 in the initial state, the protective sleeve 51 wraps the outer wall of the injector body 1 to prevent the splashing mud and sand from directly damaging the injector body 1, an annular groove 52 is provided on the surface of the protective sleeve 51, the slot 53 is provided at the bottom of the mounting block 3, a compression spring 54 is fixedly connected to the inner top of the slot 53, the top of the protective sleeve 51 is located in the slot 53 in the initial state, and the compression spring 54 is in a compressed state in the initial state, and the compression spring 54 will drive the protective sleeve 51 to move downward out of the slot 53 when it rebounds, A groove 55 is provided on the inner wall of the slot 53, and a telescopic spring 56 is arranged inside the groove 55. An arc block 57 is slidably connected to the inside of the groove 55 through the telescopic spring 56. The arc block 57 is made of stainless steel, and the surface of the arc block 57 is smooth. The arc block 57 made of stainless steel has high strength and is not easy to rust. In the initial state, one-half of the arc block 57 is located in the annular groove 52, and the longitudinal width of the annular groove 52 is equal to the longitudinal width of the groove 55. The arc block 57 is stuck in the annular groove 52 so that the protective cover 51 cannot move downward. The arc surface of the arc block 57 is downward, and the lateral length of the groove 55 is greater than the lateral length of the arc block 57. When the arc surface of the arc block 57 is squeezed, it will move into the groove 55, and the arc block 57 can be completely retracted into the groove 55. A pull rod 58 is fixedly connected to one end of the arc block 57 close to the telescopic spring 56. The pull rod 58 penetrates and is slidably connected to the mounting block 3, and an anti-falling mechanism 6 is arranged at the bottom of the mounting block 3.

[0028] In this embodiment, the injector body 1 is installed with the threaded block B4, and the nozzle can be installed on the injector body 1 through the threaded block A2. The protective cover 51 can prevent the splashing mud and sand from directly damaging the injector body 1. When the protective cover 51 needs to be removed for inspection and replacement, the pull rod 58 is pulled to both sides at the same time. At this time, the pull rod 58 will drive the arc block 57 to leave the ring groove 52 on the surface of the protective cover 51 and shrink into the groove 55. The compression spring 54 rebounds and drives the protective cover 51 to move downward and separate from the mounting block 3. The top of the protective cover 51 leaves the slot 53, and it needs to be reassembled. When installing the protective cover 51 for the first time, align the top end of the protective cover 51 with the slot 53 and insert it. The compression spring 54 is gradually compressed, and the arc surface of the arc block 57 is initially squeezed by the top end of the protective cover 51, which causes the arc block 57 to be completely retracted into the groove 55. The telescopic spring 56 is compressed. When the annular groove 52 coincides with the position of the groove 55, the telescopic spring 56 rebounds and drives the arc block 57 to be stuck in the annular groove 52. The arc block 57 is stuck in the annular groove 52, so that the protective cover 51 cannot be separated from the mounting block 3 downward, thereby completing the installation. The installation and disassembly are simple, and it is convenient for later maintenance and replacement.

[0029] Example 2

[0030] like Figure 1 to Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, it is further proposed in this embodiment that the anti-falling mechanism 6 includes a fixed plate 61 and a reduction ring 66, the top of the fixed plate 61 and the bottom of the mounting block 3, the side of the fixed plate 61 is fixedly connected with a connecting frame 62, the inner side of the connecting frame 62 is rotatably connected with a contact plate 63, the side of the fixed plate 61 is fixedly connected with a spring telescopic rod 64 and a limiting rod 65, and the end of the limiting rod 65 away from the fixed plate 61 is close to the bottom of the contact plate 63. The limiting rod 65 prevents the contact plate 63 from deflecting downward, and the end of the spring telescopic rod 64 away from the fixed plate 61 is fixedly connected to the top of the contact plate 63. The reduction ring 66 is fixedly connected to the surface of the protective cover 51. The end of the contact plate 63 away from the connecting frame 62 is arc-shaped, and the end of the contact plate 63 away from the connecting frame 62 is close to the reduction ring 66. When the protective cover 51 moves, the reduction ring 66 thereon will be driven to contact the contact plate 63. The reduction ring 66 is made of rubber, and the number of reduction rings 66 is set to three groups. When the rubber reduction ring 66 is squeezed against the contact plate 63, resistance will be generated, and the resistance brought by the three groups of reduction rings 66 will slow down the speed of the protective cover 51 when moving downward.

[0031] The deceleration ring 66 moves downward and contacts the contact plate 63 again.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An erosion-resistant and efficient ejector, characterized in that: The injector body (1) comprises an injector main body (1), a threaded block A (2) being fixedly connected to the bottom of the injector main body (1), a mounting block (3) being fixedly connected to the top of the injector main body (1), a threaded block B (4) being fixedly connected to the top of the mounting block (3), and an anti-erosion mechanism (5) being provided on the surface of the injector main body (1); The anti-erosion mechanism (5) comprises a protective sleeve (51) and a slot (53), wherein a ring groove (52) is provided on the surface of the protective sleeve (51), the slot (53) is provided at the bottom of the mounting block (3), a compression spring (54) is fixedly connected to the top of the slot (53), a groove (55) is provided on the inner wall of the slot (53), a telescopic spring (56) is provided inside the groove (55), an arc block (57) is slidably connected to the inside of the groove (55) via the telescopic spring (56), a pull rod (58) is fixedly connected to one end of the arc block (57) close to the telescopic spring (56), the pull rod (58) penetrates the mounting block (3) and is slidably connected, and an anti-fall-off mechanism (6) is provided at the bottom of the mounting block (3).

2. The erosion-resistant high-efficiency ejector according to claim 1, characterized in that: The top of the protective sleeve (51) is initially located in the slot (53), and the compression spring (54) is initially in a compressed state.

3. The erosion-resistant high-efficiency ejector according to claim 2, characterized in that: In the initial state, one half of the arc-shaped block (57) is located in the annular groove (52), and the longitudinal width of the annular groove (52) is equal to the longitudinal width of the groove (55).

4. The erosion-resistant high-efficiency ejector according to claim 3, characterized in that: The arc surface of the arc block (57) faces downwards, and the transverse length of the groove (55) is greater than the transverse length of the arc block (57).

5. The erosion-resistant high-efficiency ejector according to claim 4, characterized in that: In the initial state, the inner wall of the protective sleeve (51) is in contact with the outer wall of the injector body (1).

6. The erosion-resistant high-efficiency ejector according to claim 5, characterized in that: The material of the arc-shaped block (57) is stainless steel, and the surface of the arc-shaped block (57) is smooth.

7. The erosion-resistant and high-efficiency ejector according to claim 6, characterized in that: The anti-falling mechanism (6) comprises a fixing plate (61) and a deceleration ring (66); the top of the fixing plate (61) is connected to the bottom of the mounting block (3); the side of the fixing plate (61) is fixedly connected to a connecting frame (62); the inner side of the connecting frame (62) is rotatably connected to a contact plate (63); the side of the fixing plate (61) is fixedly connected to a spring telescopic rod (64) and a limiting rod (65); one end of the spring telescopic rod (64) away from the fixing plate (61) is fixedly connected to the top of the contact plate (63); and the deceleration ring (66) is fixedly connected to the surface of the protective cover (51).

8. The erosion-resistant and efficient ejector according to claim 7, characterized in that: One end of the contact plate (63) away from the connecting frame (62) is arc-shaped, and the end of the contact plate (63) away from the connecting frame (62) is close to the speed reduction ring (66).

9. The erosion-resistant and high-efficiency ejector according to claim 8, characterized in that: The material of the deceleration ring (66) is rubber material, and the number of the deceleration rings (66) is set to three groups.

10. The erosion-resistant and high-efficiency ejector according to claim 9, characterized in that: One end of the limiting rod (65) away from the fixing plate (61) is close to the bottom of the contact plate (63).

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