Injection system for injection pump

Abstract

The utility model relates to the technical field of jet pumps, and proposes a jet pump injection system, including a frame and a pump body arranged on the frame, the pump body having a water inlet and a water outlet, and also including a water inlet pipe, a water outlet pipe and a connecting pipe, the water inlet pipe is connected to the water inlet, the water outlet pipe is connected to the water outlet, one end of the connecting pipe is connected to the water inlet pipe, and the other end of the connecting pipe is connected to the water outlet pipe. Through the above technical solution, the problem that the jet pump of the prior art cannot be used due to insufficient injection height is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of jet pumps, and in particular to an injection system for a jet pump. Background Art

[0002] A jet pump is a fluid power pump. A fluid power pump has no mechanical transmission or mechanical working components. It uses the energy of another working fluid as a power source to transport low-energy liquids. It has good safety when used to pump flammable and explosive materials. A jet vacuum pump is a device that uses a high-speed jet through a nozzle to remove gas from a container to obtain a vacuum. It is also called a jet vacuum pump.

[0003] However, when used on some ships, the jet pump's injection height is insufficient due to the high extraction height, and it is inconvenient to change to a pump with a higher injection height. Therefore, we need a device that can increase the jet pump's injection height. Utility Model Content

[0004] The utility model provides an injection system for a jet pump, which solves the problem that the jet pump in the related art cannot be used due to insufficient injection height.

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

[0006] A jet pump injection system, comprising a frame and a pump body arranged on the frame, wherein the pump body has a water inlet and a water outlet, and further comprising

[0007] a water inlet pipe, the water inlet pipe being connected to the water inlet,

[0008] a water outlet pipe, the water outlet pipe being connected to the water outlet,

[0009] A connecting pipe, one end of which is connected to the water inlet pipe, and the other end of which is connected to the water outlet pipe.

[0010] Optionally, it also includes,

[0011] A one-way plate is rotatably arranged in the connecting pipe, and the one-way plate is rotated to open or close the connecting pipe, and the one-way plate rotates along the direction from the water outlet pipe to the water inlet pipe.

[0012] Optionally, the pump body has a cavity, and the cavity is connected to the water inlet and the water outlet; and further includes,

[0013] a conveying impeller, the conveying impeller being rotatably disposed in the cavity,

[0014] Optionally, a fixed bearing is provided on the frame.

[0015] A driving shaft is rotatably arranged on the fixed bearing, and the driving shaft is connected to the conveying impeller.

[0016] Optionally, a valve body is further included, wherein the valve body is arranged on the connecting pipe, and the valve body is used to control the flow of the connecting pipe.

[0017] Optionally, the pump body is connected to the frame body via fasteners.

[0018] The working principle and beneficial effects of the utility model are:

[0019] In order to solve the above technical problems, the utility model proposes an injection system for a jet pump, comprising a frame and a pump body arranged on the frame, the pump body having a water inlet and a water outlet, and also comprising a water inlet pipe, a water outlet pipe and a connecting pipe, the water inlet pipe is connected to the water inlet, the water outlet pipe is connected to the water outlet, one end of the connecting pipe is connected to the water inlet pipe, and the other end of the connecting pipe is connected to the water outlet pipe.

[0020] When working, the pump body is a jet pump body. The impeller of the jet pump rotates to suck water from the water inlet into the cavity through the water inlet pipe, and is sent out from the water outlet and the outlet pipe. When the water is sent out from the outlet pipe, part of the water will be sent back through the connecting pipe to the water inlet pipe to pressurize the water in the water inlet pipe.

[0021] Beneficial effect: by setting the connecting pipe, the water whose kinetic energy is increased by the impeller will flow back from the connecting pipe, thereby increasing the pressure at the inlet end of the pump body, thereby increasing the pressure at the outlet end of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0023] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 2 This is a side view of the structure of the utility model;

[0025] In the figure: 1, frame, 2, pump body, 3, water inlet, 4, water outlet, 5, water inlet pipe, 6, water outlet pipe, 7, connecting pipe, 8, one-way plate, 9, cavity, 10, conveying impeller, 11, fixed bearing, 12, drive shaft, 13, valve body. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0027] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0028] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] Example 1

[0031] Reference Figure 1~Figure 2 , which is the first embodiment of the utility model, proposes an injection system for a jet pump, including a frame 1 and a pump body 2 arranged on the frame 1, the pump body 2 has a water inlet 3 and a water outlet 4, and also includes,

[0032] A water inlet pipe 5, the water inlet pipe 5 is connected to the water inlet 3,

[0033] A water outlet pipe 6, the water outlet pipe 6 is connected to the water outlet 4,

[0034] A connecting pipe 7 , one end of which is connected to the water inlet pipe 5 , and the other end of which is connected to the water outlet pipe 6 .

[0035] In this embodiment, in order to solve the above technical problems, an injection system for a jet pump is proposed, including a frame 1 and a pump body 2 arranged on the frame 1, the pump body 2 has a water inlet 3 and a water outlet 4, and also includes a water inlet pipe 5, a water outlet pipe 6 and a connecting pipe 7, the water inlet pipe 5 is connected to the water inlet 3, the water outlet pipe 6 is connected to the water outlet 4, one end of the connecting pipe 7 is connected to the water inlet pipe 5, and the other end of the connecting pipe 7 is connected to the water outlet pipe 6,

[0036] When working, the pump body 2 is a jet pump body 2. The impeller of the jet pump rotates to suck water from the water inlet 3 into the cavity 9 through the water inlet pipe 5, and is sent out from the water outlet 4 and the water outlet pipe 6. When the water is sent out from the water outlet pipe 6, part of the water will be sent back through the connecting pipe 7 to the water inlet pipe 5 to pressurize the water in the water inlet pipe 5. By setting the connecting pipe 7, the water whose kinetic energy is increased by the impeller will flow back from the connecting pipe 7, thereby increasing the pressure at the inlet end of the pump body 2, thereby increasing the pressure at the outlet end of the pump body 2.

[0037] Example 2

[0038] Compared with Example 1, it further includes a one-way piece 8, which is rotatably arranged in the connecting pipe 7. The one-way piece 8 is rotated to open or close the connecting pipe 7, and the one-way piece 8 rotates along the direction from the water outlet pipe 6 to the water inlet pipe 5.

[0039] In this embodiment, a one-way piece 8 is also included. The one-way piece 8 is rotatably arranged in the connecting pipe 7. The one-way piece 8 is rotated to open and close the connecting pipe 7. The one-way piece 8 rotates in the direction from the water outlet pipe 6 to the water inlet pipe 5. The function of the one-way piece 8 is to prevent the water in the water inlet pipe 5 from entering the water outlet pipe 6 through the connecting pipe 7. When the water returns from the water outlet pipe 6 to the water inlet pipe 5, the one-way piece 8 will open.

[0040] Example 3

[0041] Compared with the embodiment 1-2, further, the pump body 2 has a cavity 9, and the cavity 9 is connected with the water inlet 3 and the water outlet 4; and further includes,

[0042] The conveying impeller 10 is rotatably disposed in the cavity 9.

[0043] A fixed bearing 11, wherein the fixed bearing 11 is arranged on the frame 1,

[0044] A driving shaft 12 is rotatably disposed on the fixed bearing 11 , and the driving shaft 12 is connected to the conveying impeller 10 .

[0045] The pump body 2 is connected to the frame body 1 via fasteners.

[0046] In this embodiment, the pump body 2 has a cavity 9, which is connected to the water inlet 3 and the water outlet 4, and also includes a conveying impeller 10, a fixed bearing 11 and a drive shaft 12. The frame 1 is separated from the pump body 2, and the drive shaft 12 and the fixed bearing 11 are both arranged on the frame 1. The pump body 2 is connected to the frame 1 through fasteners, so that different jet pumps can be replaced to adapt to different working conditions.

[0047] Example 4

[0048] Compared with embodiments 1-3, further, it also includes a valve body 13, which is arranged on the connecting pipe 7, and the valve body 13 is used to control the flow of the connecting pipe 7.

[0049] In this embodiment, a valve body is also included. The valve body is arranged on the connecting pipe 7. The valve body is used to control the flow of the connecting pipe 7. Because as the pump body 2 works for a long time, the valve body can be closed so that water will not return to the water inlet pipe 5.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An injection system for a jet pump, characterized in that: It comprises a frame (1) and a pump body (2) arranged on the frame (1), the pump body (2) having a water inlet (3) and a water outlet (4), and further comprising: a water inlet pipe (5), the water inlet pipe (5) being in communication with the water inlet (3), a water outlet pipe (6), the water outlet pipe (6) being in communication with the water outlet (4), A connecting pipe (7), one end of the connecting pipe (7) being connected to the water inlet pipe (5), and the other end of the connecting pipe (7) being connected to the water outlet pipe (6).

2. The injection system for a jet pump according to claim 1, characterized in that: It also comprises a one-way plate (8), the one-way plate (8) being rotatably arranged in the connecting pipe (7), the one-way plate (8) being rotated to open or close the connecting pipe (7), the one-way plate (8) being rotated in the direction from the water outlet pipe (6) to the water inlet pipe (5).

3. The injection system for a jet pump according to claim 1, characterized in that: The pump body (2) has a cavity (9), and the cavity (9) is in communication with the water inlet (3) and the water outlet (4); and further comprises: a conveying impeller (10), the conveying impeller (10) being rotatably disposed in the cavity (9), a fixed bearing (11), wherein the fixed bearing (11) is arranged on the frame (1), A drive shaft (12), the drive shaft (12) being rotatably disposed on the fixed bearing (11), and the drive shaft (12) being connected to the conveying impeller (10).

4. The injection system for a jet pump according to claim 1, characterized in that: It also comprises a valve body (13), wherein the valve body (13) is arranged on the connecting pipe (7), and the valve body (13) is used to control the flow of the connecting pipe (7).

5. The injection system for a jet pump according to claim 1, characterized in that: The pump body (2) and the frame body (1) are connected via fasteners.

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