Natural gas ejector

Abstract

The utility model relates to the technical field of ejectors, and discloses a natural gas ejector which comprises a first spray pipe and a second spray pipe, and further comprises a suction chamber, a mixing chamber, a diffusion chamber and a limiting assembly, one end of the first spray pipe and one end of the second spray pipe are air inlet ends, and the other end of the first spray pipe and the other end of the second spray pipe are air outlet ends. A suction chamber, a mixing chamber and a diffusion chamber are sequentially arranged in the first spray pipe and the second spray pipe from the gas inlet end to the gas outlet end, the limiting assemblies are arranged on the outer sides of the first spray pipe and the second spray pipe, and the first spray pipe and the second spray pipe can form a complete nozzle through cooperative use of the limiting assemblies. When the inner wall of the ejector needs to be cleaned, the first spraying pipe and the second spraying pipe can be detached, a worker can quickly clean the inner wall of the ejector, and compared with the mode that a cotton swab stretches into the ejector for cleaning, the ejector improves maintenance convenience and enables the ejector to be cleaned more thoroughly.

Description

Technical Field

[0001] The utility model relates to the technical field of ejectors, and more specifically to natural gas ejectors. Background Art

[0002] A natural gas ejector is a device that uses the jet effect of high-pressure gas to achieve energy transfer and conversion between gases, and is mainly used to increase the low-pressure natural gas transmission pressure, ensure the stability of the combustion flame, and improve the suction capacity of the vacuum pump, etc.

[0003] When air and gas are mixed in a natural gas ejector, residues may be left on the inner wall of the ejector. These residues mainly come from impurities in the air, heavy hydrocarbon components in the gas, and carbon deposits generated during the combustion process, etc. However, most of the existing natural gas ejectors are integral, which makes it difficult for workers to clean the inner wall of the ejector. For example, when using a cotton swab to reach into the inside of the ejector for cleaning, the residues cannot be completely removed from the inner wall of the ejector, and the residues removed may still remain at the corners of the ejector. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a natural gas ejector to solve the problem of difficult cleaning of the residues on the inner wall of the ejector.

[0005] The utility model provides the following technical solutions:

[0006] A natural gas ejector, comprising a first nozzle and a second nozzle, and further comprising an inhalation chamber, a mixing chamber, a diffuser chamber and a limiting component. One end of the first nozzle and the second nozzle is an air inlet end, and the other end is an air outlet end. The inhalation chamber, the mixing chamber and the diffuser chamber are sequentially arranged inside the first nozzle and the second nozzle from the air inlet end to the air outlet end. Nozzles extending towards the inhalation chamber are arranged at the inlet ends of the first nozzle and the second nozzle. An ejector pipe is arranged at the bottom of the inhalation chamber. The limiting component is arranged outside the first nozzle and the second nozzle and connects the first nozzle and the second nozzle.

[0007] Further, a connection groove is formed on the side surface of the first nozzle, and a connection plate is fixedly installed on the side surface of the second nozzle. The connection plate is adapted to the connection groove.

[0008] Further, a sealing gasket is bonded to the inner wall of the connection groove and the outer side of the connection plate. The sealing gasket is made of polytetrafluoroethylene plastic sealing material.

[0009] Further, the limiting component includes a first mounting bracket and a second mounting bracket. The first mounting bracket and the second mounting bracket are fixedly installed on the outer side of the first nozzle pipe. A first mounting groove is formed on the side surface of the first mounting bracket, and a second mounting groove is formed on the side surface of the second mounting bracket. The third mounting bracket and the fourth mounting bracket are fixedly installed on the outer side of the second nozzle pipe. A first mounting plate adapted to the first mounting groove is fixedly installed on the side surface of the third mounting bracket, and a second mounting plate adapted to the second mounting groove is fixedly installed on the side surface of the fourth mounting bracket.

[0010] Further, a knob is provided on the side of the first mounting bracket away from the first nozzle pipe and on the side of the second mounting bracket away from the second nozzle pipe. A driving bevel gear is fixedly connected to the side surface of the knob. A driven bevel gear is meshed with the surface of the driving bevel gear. A lead screw is fixedly installed on the side surface of the driven bevel gear. A movable plate is threadedly connected to the surface of the lead screw. A clamping rod is fixedly installed on the side of the movable plate away from the driven bevel gear. A clamping groove adapted to the clamping rod is formed on the side surfaces of the first mounting plate and the second mounting plate.

[0011] Further, the number of the movable plates and the clamping rods is two, and they are symmetrically distributed left and right with the center line of the driving bevel gear as the axis of symmetry.

[0012] Further, a limiting rod is fixedly installed inside the first mounting bracket and the second mounting bracket. The movable plate is slidably connected to the limiting rod.

[0013] The technical effects and advantages of the present utility model:

[0014] In the present utility model, by placing the connecting plate of the second nozzle pipe into the connecting groove of the first nozzle pipe and with the cooperation of the limiting component, the first nozzle pipe and the second nozzle pipe can form a complete nozzle. The natural gas ejector of the present application is no longer an integral type. When it is necessary to clean the inner wall of the ejector, the first nozzle pipe and the second nozzle pipe can be disassembled, and the staff can quickly clean the inner wall of the ejector. Compared with the method of using a cotton swab to reach into the inner part of the ejector for cleaning, the ejector of the present application not only improves the convenience of maintenance but also makes the ejector cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure after the first nozzle pipe and the second nozzle pipe of the present utility model are disassembled;

[0017] Figure 3 is a schematic cross-sectional structure diagram of the first nozzle pipe and the second nozzle pipe of the present utility model;

[0018] Figure 4Schematic cross-sectional structure diagram of mounting bracket 1 and mounting bracket 2 of the present utility model;

[0019] Figure 5 For the present utility model Figure 3 Enlarged view of part A in

[0020] Reference numerals are: 1, nozzle 1; 2, nozzle 2; 3, suction chamber; 4, mixing chamber; 5, diffuser chamber; 6, nozzle; 7, ejector pipe; 8, connection groove; 9, connecting plate; 10, gasket; 11, limiting assembly; 1101, mounting bracket 1; 1102, mounting bracket 2; 1103, mounting bracket 3; 1104, mounting bracket 4; 1105, mounting groove 1; 1106, mounting plate 1; 1107, mounting groove 2; 1108, mounting plate 2; 1109, knob; 1110, driving bevel gear; 1111, driven bevel gear; 1112, lead screw; 1113, movable plate; 1114, limiting rod; 1115, clamping rod; 1116, clamping groove. Detailed implementation manners

[0021] The following further describes the present utility model in conjunction with specific embodiments. However, those skilled in the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present utility model necessarily extends beyond these limited embodiments, and for some equivalent replacement schemes or common means, no detailed description will be given herein, but they still fall within the protection scope of the present application.

[0022] Figures 1 - 5 is the best embodiment of the present utility model. The following further describes the present utility model in conjunction with the drawings Figures 1 - 5 for the present utility model.

[0023] The natural gas ejector includes nozzle 1 and nozzle 2, and also includes a suction chamber 3, a mixing chamber 4, a diffuser chamber 5 and a limiting assembly 11. One end of nozzle 1 and nozzle 2 is the air inlet end, and the other end is the air outlet end. Inside nozzle 1 and nozzle 2, a suction chamber 3, a mixing chamber 4 and a diffuser chamber 5 are sequentially arranged from the air inlet end to the air outlet end. Nozzles 6 extending towards the suction chamber 3 are arranged at the inlet ends of nozzle 1 and nozzle 2. An ejector pipe 7 is arranged at the bottom of the suction chamber 3. The limiting assembly 11 is arranged on the outer sides of nozzle 1 and nozzle 2 and connects nozzle 1 and nozzle 2.

[0024] The connection part between the suction chamber 3 and the mixing chamber 4 is a converging duct, the diffuser chamber 5 is a diverging duct, the suction chamber 3 and the mixing chamber 4 are straight ducts, a straight duct is fixedly connected to the side of the diffuser chamber 5, and the nozzle 6 adopts a converging duct structure.

[0025] Specifically, a connection groove 8 is formed on the side of nozzle 1, and a connecting plate 9 is fixedly installed on the side of nozzle 2. The connecting plate 9 is adapted to the connection groove 8.

[0026] In this embodiment, by placing the connecting plate 9 of the second nozzle 2 into the connecting groove 8 of the first nozzle 1, the first nozzle 1 and the second nozzle 2 can be connected together, which plays a positioning role for the later assembly of the first nozzle 1 and the second nozzle 2.

[0027] Specifically, a sealing gasket 10 is adhesively bonded to the inner wall of the connecting groove 8 and the outer side of the connecting plate 9. The sealing gasket 10 is made of a polytetrafluoroethylene plastic sealing material.

[0028] In this embodiment, the sealing gasket 10 made of a polytetrafluoroethylene plastic sealing material can maintain good sealing performance under high temperature, high pressure and corrosive media, improving the sealing performance of the ejector after assembly.

[0029] Specifically, the limiting component 11 includes a first mounting frame 1101 and a second mounting frame 1102. The first mounting frame 1101 and the second mounting frame 1102 are fixedly installed on the outer side of the first nozzle 1. An installation groove 1105 is formed on the side surface of the first mounting frame 1101, and an installation groove 1107 is formed on the side surface of the second mounting frame 1102. A third mounting frame 1103 and a fourth mounting frame 1104 are fixedly installed on the outer side of the second nozzle 2. A first mounting plate 1106 adapted to the installation groove 1105 is fixedly installed on the side surface of the third mounting frame 1103, and a second mounting plate 1108 adapted to the installation groove 1107 is fixedly installed on the side surface of the fourth mounting frame 1104.

[0030] In this embodiment, when the first nozzle 1 is connected to the second nozzle 2, the first mounting plate 1106 of the third mounting frame 1103 will be placed into the installation groove 1105 of the first mounting frame 1101, and the second mounting plate 1108 of the fourth mounting frame 1104 will be placed into the installation groove 1107 of the second mounting frame 1102.

[0031] Specifically, a knob 1109 is provided on the side of the first mounting frame 1101 away from the first nozzle 1 and on the side of the second mounting frame 1102 away from the second nozzle 2. A driving bevel gear 1110 is fixedly connected to the side surface of the knob 1109. A driven bevel gear 1111 is meshed with the surface of the driving bevel gear 1110. A lead screw 1112 is fixedly installed on the side surface of the driven bevel gear 1111. A movable plate 1113 is threadedly connected to the surface of the lead screw 1112. A clamping rod 1115 is fixedly installed on the side of the movable plate 1113 away from the driven bevel gear 1111. A clamping groove 1116 adapted to the clamping rod 1115 is formed on the side surfaces of the first mounting plate 1106 and the second mounting plate 1108.

[0032] In this implementation scheme, rotating the knob 1109 can drive the driving bevel gear 1110 to rotate. Under the meshing transmission of the bevel gears, the driven bevel gear 1111 can drive the lead screw 1112 to rotate. Under the interaction of the external thread of the lead screw 1112 and the internal thread of the movable plate 1113, the movable plate 1113 can move left and right, thereby driving the clamping rod 1115 to engage with or disengage from the clamping groove 1116.

[0033] Specifically, the number of the movable plates 1113 and the clamping rods 1115 is two each, and they are symmetrically distributed left and right with the center line of the driving bevel gear 1110 as the axis of symmetry.

[0034] In this implementation scheme, the two groups of movable plates 1113 and clamping rods 1115 are used in cooperation to fix the mounting plate one 1106 in the mounting groove one 1105, or to fix the mounting plate two 1108 in the mounting groove two 1107.

[0035] Specifically, a limiting rod 1114 is fixedly installed inside the mounting frame one 1101 and the mounting frame two 1102, and the movable plate 1113 is slidably connected to the limiting rod 1114.

[0036] In this implementation scheme, when the movable plate 1113 moves, it can slide on the surface of the limiting rod 1114, which can play a limiting role.

[0037] Working principle and usage process of the present utility model: When it is necessary to clean the inner wall of the ejector, first rotate the knob 1109 to drive the driving bevel gear 1110 to rotate. Under the meshing transmission of the bevel gears, the driven bevel gear 1111 can drive the lead screw 1112 to rotate. Under the interaction of the external thread of the lead screw 1112 and the internal thread of the movable plate 1113, the movable plate 1113 moves inward, thereby driving the clamping rod 1115 to disengage from the clamping groove 1116. At this time, the nozzle one 1 and the nozzle two 2 can be separated to both sides. The natural gas ejector of this application is no longer an integral type. When it is necessary to clean the inner wall of the ejector, the nozzle one 1 and the nozzle two 2 can be disassembled, and the staff can quickly clean the inner wall of the ejector; when the cleaning of the inner wall of the ejector is completed, put the connecting plate 9 of the nozzle two 2 into the connecting groove 8 of the nozzle one 1, so that the nozzle one 1 and the nozzle two 2 can be connected together. At the same time, the mounting plate one 1106 of the mounting frame three 1103 will be put into the mounting groove one 1105 of the mounting frame one 1101, and the mounting plate two 1108 of the mounting frame four 1104 will be put into the mounting groove two 1107 of the mounting frame two 1102. Finally, rotate the knob 1109 in the reverse direction, and the ejector can be assembled. Compared with the method of using a cotton swab to reach into the ejector for cleaning, the ejector of this application not only improves the convenience of maintenance, but also makes the ejector cleaner.

[0038] As described above, it is only the preferred embodiment of the present utility model, and it is not intended to limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. Gas ejector, comprising a first nozzle (1) and a second nozzle (2), characterized in that: It further includes an inhalation chamber (3), a mixing chamber (4), a diffuser chamber (5) and a limiting component (11). One end of the first nozzle (1) and the second nozzle (2) is the air inlet end, and the other end is the air outlet end. Inside the first nozzle (1) and the second nozzle (2), the inhalation chamber (3), the mixing chamber (4) and the diffuser chamber (5) are sequentially arranged from the air inlet end to the air outlet end. Nozzles (6) extending towards the inhalation chamber (3) are arranged at the inlet ends of the first nozzle (1) and the second nozzle (2). An ejector pipe (7) is arranged at the bottom of the inhalation chamber (3). The limiting component (11) is arranged outside the first nozzle (1) and the second nozzle (2) and connects the first nozzle (1) and the second nozzle (2).

2. The gas ejector according to claim 1, characterized in that: A connection groove (8) is formed on the side surface of the first nozzle (1), and a connection plate (9) is fixedly installed on the side surface of the second nozzle (2). The connection plate (9) is adapted to the connection groove (8).

3. The gas ejector according to claim 2, wherein: Sealing gaskets (10) are adhesively bonded to the inner wall of the connection groove (8) and the outer side of the connection plate (9). The sealing gaskets (10) are made of polytetrafluoroethylene plastic sealing materials.

4. The gas ejector according to claim 1, wherein: The limiting component (11) includes a first mounting frame (1101) and a second mounting frame (1102). The first mounting frame (1101) and the second mounting frame (1102) are fixedly installed on the outer side of the first nozzle (1). A first mounting groove (1105) is formed on the side surface of the first mounting frame (1101), and a second mounting groove (1107) is formed on the side surface of the second mounting frame (1102). A third mounting frame (1103) and a fourth mounting frame (1104) are fixedly installed on the outer side of the second nozzle (2). A first mounting plate (1106) adapted to the first mounting groove (1105) is fixedly installed on the side surface of the third mounting frame (1103), and a second mounting plate (1108) adapted to the second mounting groove (1107) is fixedly installed on the side surface of the fourth mounting frame (1104).

5. The gas ejector according to claim 4, wherein: Knobs (1109) are arranged on the side of the first mounting frame (1101) away from the first nozzle (1) and the side of the second mounting frame (1102) away from the second nozzle (2). A driving bevel gear (1110) is fixedly connected to the side surface of the knob (1109). A driven bevel gear (1111) is meshed with the surface of the driving bevel gear (1110). A lead screw (1112) is fixedly installed on the side surface of the driven bevel gear (1111). A movable plate (1113) is threadedly connected to the surface of the lead screw (1112). A clamping rod (1115) is fixedly installed on the side of the movable plate (1113) away from the driven bevel gear (1111). Card slots (1116) adapted to the clamping rod (1115) are formed on the side surfaces of the first mounting plate (1106) and the second mounting plate (1108).

6. The gas ejector according to claim 5, characterized in that: The number of the movable plates (1113) and the clamping rods (1115) is two, and they are symmetrically distributed left and right with the center line of the driving bevel gear (1110) as the axis of symmetry.

7. The gas ejector according to claim 5, characterized in that: The inside of the first mounting bracket (1101) and the second mounting bracket (1102) is fixedly installed with a limiting rod (1114), and the movable plate (1113) is slidably connected to the limiting rod (1114).

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