Multi-stage pressurized jet structure of rotary jet pump

Abstract

The utility model belongs to the field of rotary jet pumps, particularly relates to a rotary jet pump multi-stage pressurizing jet structure, and provides the following scheme aiming at the problems that the existing rotary jet pump can only realize a single pressurizing effect and cannot meet the requirement of multi-stage pressurizing on liquid in some special application scenes: the rotary jet pump multi-stage pressurizing jet structure comprises a pump body, the pump body comprises a pump shell, an impeller and a collecting pipe, the impeller is rotationally arranged in the pump shell, one end of the collecting pipe is located in the impeller, the other end of the collecting pipe rotationally penetrates through the pump shell, a plurality of drainage holes are formed in the impeller, and the pressurizing mechanism is arranged and comprises a side shell and a spiral blade, so that the multi-stage pressurizing effect on liquid is achieved; the injection pressure and the injection distance of the liquid are increased, and the requirements in special application scenes are met; the mounting mechanism adopts a mode that an inserting rod is matched with an inserting groove, and is fixed by an arc-shaped strip and a fixing rod, so that not only is the mounting convenient, but also the stability and reliability are realized, and the dismounting and the maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary jet pump technical field especially relates to a rotary jet pump multistage pressure boost injection structure. BACKGROUND

[0002] Rotary jet pump, it is a device that can spray liquid or gas, it is through connecting rod and transmits power to impeller and makes it start rotating, impeller will produce centrifugal force through high speed rotation, liquid is thrown, and low pressure area (vacuum area) is formed on the edge of impeller after liquid is thrown, and liquid automatically fills low pressure area;

[0003] In traditional pump equipment, only single pressure boost effect can be realized, and the demand of multistage pressure boost to liquid under some special application scenarios cannot be met. UTILITY MODEL CONTENT

[0004] The utility model discloses a rotary jet pump multistage pressure boost injection structure to solve the shortcomings that only single pressure boost effect can be realized in prior art, and the demand of multistage pressure boost to liquid under some special application scenarios cannot be met.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A rotary jet pump multistage pressure boost injection structure, including pump body, the pump body includes pump shell, impeller and manifold, the impeller is rotationally arranged in the inside of pump shell, one end of the manifold is located in the inside of the impeller, and the other end of the manifold rotationally penetrates the pump shell, a plurality of drainage holes are arranged in the inside of the impeller;

[0007] Pressure boost mechanism is used for further pressure boost to liquid, and the pressure boost mechanism is located on one side of the pump shell, the pressure boost mechanism includes side shell, the side shell is arranged on one side of the pump shell and is communicated with the manifold, the inside of the side shell is rotationally provided with spiral blade, the surface of the pump shell is provided with inlet end, and the surface of the side shell is provided with outlet end.

[0008] Mounting mechanism is used for mounting the side shell on one side of the pump shell, and the mounting mechanism is located on one side of the side shell.

[0009] In a possible design, the pump body further includes a pump shaft, one end of the pump shaft is fixedly arranged on one side of the impeller, and one end of the pump shaft rotationally penetrates to the outside of the pump shell.

[0010] In a possible design, the pressure boost mechanism further includes a connecting shaft, one end of the connecting shaft is fixedly arranged on one end of the spiral blade, and the other end of the connecting shaft rotationally penetrates the manifold and is fixedly arranged on the inner wall of the impeller.

[0011] In a possible design, the mounting mechanism comprises two insertion rods, the two insertion rods are fixedly arranged at two ends of one side of the side shell respectively, insertion grooves are arranged at two ends of one side of the pump shell, and the two insertion rods are matched with the two insertion grooves respectively.

[0012] In a possible design, the mounting mechanism further comprises an arc-shaped strip, a sliding groove is arranged on the outer wall of the pump shell, and the two insertion grooves are communicated with the sliding groove, the arc-shaped strip is slidingly arranged in the sliding groove, two fixing rods are fixedly arranged at two ends of the arc-shaped strip respectively, a fixing hole is arranged on the outer wall of the insertion rod, the two fixing rods are matched with the two fixing holes respectively, a fixing block is fixedly arranged in the sliding groove, a threaded rod is fixedly arranged at the top of the arc-shaped strip, and one end of the threaded rod is screwed through the fixing block.

[0013] In a possible design, the pump shell and the side shell are provided with a rubber sealing gasket.

[0014] In the application, in the specific use, the pump shaft is driven to rotate by an external power source (such as a motor), the rotation of the pump shaft drives the impeller to rotate, and along with the rotation of the impeller, centrifugal force is generated in the plurality of drainage holes in the impeller, so that the liquid is sucked into the pump body from the inlet end on the surface of the pump shell. Under the action of the centrifugal force of the impeller, the liquid is preliminarily pressurized, and the preliminarily pressurized liquid flows along the manifold, enters the inside of the side shell through the manifold, and when the impeller rotates, the connecting shaft drives the spiral blade to rotate synchronously. The liquid entering the inside of the side shell is continuously extruded and pushed under the action of the rotation of the spiral blade, so that further pressurization is realized. After the liquid is pressurized in multiple stages, the liquid is finally sprayed out of the outlet end on the surface of the side shell, and a high-pressure jet flow is formed.

[0015] In the utility model, the multi-stage pressurization and jetting structure of the rotary jet pump can realize multi-stage pressurization of the liquid through the pressurization mechanism. The preliminary pressurization is completed by the impeller, and the further pressurization is completed by the spiral blade. The design of the multi-stage pressurization significantly improves the jetting pressure and jetting distance of the liquid, and meets the requirements in special application scenarios.

[0016] In the utility model, the multi-stage pressurization and jetting structure of the rotary jet pump can realize multi-stage pressurization of the liquid through the pressurization mechanism. The preliminary pressurization is completed by the impeller, and the further pressurization is completed by the spiral blade. The design of the multi-stage pressurization significantly improves the jetting pressure and jetting distance of the liquid, and meets the requirements in special application scenarios.

[0017] The utility model discloses a multistage pressurization and injection structure of a rotary jet pump, which is applied to the field of rotary jet pumps.

[0018] The mounting mechanism adopts the mode that the inserting rod is matched with the inserting slot, and is fixed by the arc-shaped strip and the fixing rod, so that the mounting is convenient, stable and reliable, and the rotary jet pump is convenient to disassemble and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A main structure schematic diagram of the multistage pressurization and injection structure of the rotary jet pump is provided.

[0020] Figure 2 A cross section structure schematic diagram of the multistage pressurization and injection structure of the rotary jet pump is provided.

[0021] Figure 3 An explosion structure schematic diagram of the multistage pressurization and injection structure of the rotary jet pump is provided.

[0022] Figure 4 The utility model discloses a multistage pressurization and injection structure of a rotary jet pump Figure 3 The structure enlarged view of part A in the utility model.

[0023] In the drawing: 1, pump shell;2, pump shaft;3, inlet end;4, side shell;5, outlet end;6, impeller;7, drainage hole;8, connecting shaft;9, flow collecting pipe;10, fixed block;11, sliding groove;12, inserting slot;13, inserting rod;14, fixed hole;15, fixed rod;16, arc-shaped strip;17, threaded rod;18, spiral blade. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Embodiment 1

[0026] Referring to Figures 1-2 A multistage pressurization and injection structure of a rotary jet pump is applied in the field of rotary jet pumps, which comprises a pump body structure

[0027] The pump body comprises a pump shell 1, an impeller 6, a flow collecting pipe 9 and a pump shaft 2. The pump shell 1 serves as the main body of the whole structure, and the internal cavity thereof is used for accommodating the impeller 6. The impeller 6 is driven by the pump shaft 2 and rotates in the pump shell 1. One end of the flow collecting pipe 9 is located in the interior of the impeller 6 and is communicated with a plurality of drainage holes 7 of the impeller 6, and the other end penetrates through the pump shell 1 and is used for guiding the liquid preliminarily pressurized by the impeller 6.

[0028] Specifically, the pump shaft 2 is driven to rotate by an external power source (such as a motor), and the rotation of the pump shaft 2 drives the impeller 6 to rotate inside the pump shell 1. With the rotation of the impeller 6, the plurality of drainage holes 7 inside the impeller 6 generate centrifugal force, and the liquid is sucked into the pump body from the inlet end 3 on the surface of the pump shell 1. The sucked liquid is thrown to one end of the collecting pipe 9 by the rotating impeller 6 through the drainage holes 7. At this time, the liquid is subjected to the centrifugal force of the impeller, and the liquid after the preliminary pressurization flows along the collecting pipe 9 and is ready to enter the pressurization mechanism for further pressurization.

[0029] Pressurization mechanism

[0030] The pressurization mechanism is located on one side of the pump shell 1 and is used for further pressurizing the liquid. The mechanism includes a side shell 4 and a spiral blade 18. The side shell 4 is arranged on one side of the pump shell 1 and is in communication with the other end of the collecting pipe 9, so as to ensure that the liquid can flow from the impeller 6 into the side shell 4. The spiral blade 18 is arranged inside the side shell 4 and is connected with the impeller 6 through a connecting shaft 8. When the impeller 6 rotates, the connecting shaft 8 drives the spiral blade 18 to rotate synchronously, and the liquid is further pressurized.

[0031] Specifically, since one end of the connecting shaft 8 is fixedly arranged on the spiral blade 18 and the other end is rotatably penetrated through the collecting pipe 9 and fixedly arranged on the inner wall of the impeller 6, when the impeller 6 rotates, the connecting shaft 8 drives the spiral blade 18 to rotate synchronously. The liquid entering the inside of the side shell 4 is continuously squeezed and pushed under the rotating action of the spiral blade 18, so as to realize further pressurization. The liquid after the multi-stage pressurization is finally sprayed out from the outlet end 5 on the surface of the side shell 4, forming a high-pressure jet flow.

[0032] Embodiment 2

[0033] Reference Figures 3-4 On the basis of embodiment 1, an installation mechanism is used to stably install the side shell 4 on one side of the pump shell 1. The mechanism includes two insertion rods 13, an arc-shaped strip 16, a fixed rod 15, a sliding groove 11, a fixed block 10, and a threaded rod 17. The two insertion rods 13 are fixedly arranged at the two ends of one side of the side shell 4, and the two ends of one side of the pump shell 1 are provided with insertion grooves 12 matched with the insertion rods 13. The arc-shaped strip 16 is slidingly arranged inside the sliding groove 11 provided on the outer wall of the pump shell 1, and the two insertion grooves 12 are in communication with the sliding groove 11. The two fixed rods 15 are fixedly arranged at the two ends of the arc-shaped strip 16, and the threaded rod 17 is rotatably arranged at the top of the arc-shaped strip 16. One end of the threaded rod 17 can be threadedly penetrated through the fixed block 10. The arc-shaped strip 16 is displaced by rotating the threaded rod 7, so as to drive the insertion rods 13 to be inserted into the insertion grooves 12, thereby realizing the fixation of the side shell 4 and the pump shell 1.

[0034] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A multi-stage pressurized jet structure of a rotary jet pump, characterized by, The utility model relates to a pump body, which comprises a pump shell (1), an impeller (6) and a collecting pipe (9), the impeller (6) is rotatably arranged in the pump shell (1), one end of the collecting pipe (9) is located in the impeller (6), and the other end of the collecting pipe (9) penetrates the pump shell (1) rotatably, a plurality of drainage holes (7) are formed in the impeller (6), a pressurizing mechanism is arranged on one side of the pump shell (1) to further pressurize the liquid, the pressurizing mechanism comprises a side shell (4) arranged on one side of the pump shell (1) and connected with the collecting pipe (9), a spiral blade (18) is arranged in the side shell (4), an inlet end (3) is formed on the surface of the pump shell (1), and an outlet end (5) is formed on the surface of the side shell (4), and a mounting mechanism is arranged on one side of the side shell (4) to mount the side shell (4) on one side of the pump shell (1). The pump body further comprises a pump shaft (2), one end of the pump shaft (2) is fixedly arranged on one side of the impeller (6), and the other end of the pump shaft (2) penetrates the pump shell (1) rotatably. The pressurizing mechanism further comprises a connecting shaft (8), one end of the connecting shaft (8) is fixedly arranged on one end of the spiral blade (18), and the other end of the connecting shaft (8) penetrates the collecting pipe (9) rotatably and is fixedly arranged on the inner wall of the impeller (6). The mounting mechanism comprises two insertion rods (13), the two insertion rods (13) are fixedly arranged at two ends of one side of the side shell (4), insertion grooves (12) are formed at two ends of one side of the pump shell (1), and the two insertion rods (13) are matched with the two insertion grooves (12) respectively.

2. A multi-stage pressurized jet structure for a rotary jet pump according to claim 1, wherein The mounting mechanism further comprises an arc-shaped strip (16), a sliding groove (11) is formed in the outer wall of the pump shell (1), the two insertion grooves (12) are connected with the sliding groove (11), the arc-shaped strip (16) is slidably arranged in the sliding groove (11), fixed rods (15) are fixedly arranged at two ends of the arc-shaped strip (16), fixed holes (14) are formed in the outer wall of the insertion rod (13), the two fixed rods (15) are matched with the two fixed holes (14) respectively, a fixed block (10) is fixedly arranged in the sliding groove (11), a threaded rod (17) is fixedly arranged at the top of the arc-shaped strip (16), and one end of the threaded rod (17) penetrates the fixed block (10) threadedly.

3. A multi-stage pressurized jet structure for a rotary jet pump according to claim 2, wherein A rubber sealing gasket is arranged between the pump shell (1) and the side shell (4).

4. A multi-stage pressurized jet structure for a rotary jet pump according to claim 1, wherein ​ 5. A multi-stage pressurized jet structure for a rotary jet pump according to claim 4, wherein ​ 6. A multi-stage pressurized jet structure for a rotary jet pump according to claim 5, wherein ​

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