CN212202654U - A Novel Pulse Liquid Jet Pump and Liquid Pumping System - Google Patents

Abstract

The utility model belongs to the technical field of jet pumps, in particular to a novel pulsed liquid jet pump and a liquid pumping system. The novel pulsed liquid jet pump comprises: an introduction component, an export component and a mixing chamber; the introduction component flows along the power fluid The lead-out component forms an introduction channel with a gradually narrowing aperture along the flow direction of the dynamic fluid, so as to lead the mixed liquid in the mixing chamber out of the mixing chamber; the mixing chamber uses The mixed liquid is obtained by mixing the dynamic fluid and the passive fluid, and the mixing chamber is provided with a suction port, and the suction port is communicated with the inlet channel and the outlet channel. The novel pulsed liquid jet pump provided by the utility model converts the pressure energy of the dynamic fluid into kinetic energy through the constricted introduction channel, so that a negative pressure is formed in the mixing chamber to inhale the passive fluid. working condition.

Description

A Novel Pulse Liquid Jet Pump and Liquid Pumping System

technical field

The utility model belongs to the technical field of jet pumps, in particular to a novel pulsed liquid jet pump and a liquid pumping system.

Background technique

The jet pump is a rodless pump hydraulic oil production equipment that uses the turbulent diffusion of the jet to transfer the energy of the high-pressure power fluid injected into the well to the production fluid of the downhole oil layer. It is not only used for oil production in conventional oil wells, but also in low-permeability oilfield oil wells, low-level deep wells, inclined wells, offshore oil wells, and special oil wells with complex working conditions, and has achieved good production results. unique advantage.

At present, there are two main types of oil production methods used in domestic mechanical oil production, namely rod pump oil production and rodless pump oil production. The jet pump belongs to a rodless pump for oil production. There are no moving parts inside the jet pump, so it has the advantages of simple structure, safe operation, convenient maintenance and good effect, especially under special working conditions such as high temperature, high pressure, vacuum, strong radiation and underwater, it shows its unique the superiority.

The existing jet pump has a complex structure, is inconvenient to maintain, and needs to be improved.

Utility model content

The purpose of the embodiments of the present invention is to provide a new type of pulsed liquid jet pump, which aims to solve the problems that the existing jet pump has a complex structure, is inconvenient to maintain, and needs to be improved.

The embodiment of the present utility model is realized in this way, a new type of pulsed liquid jet pump, the new type of pulsed liquid jet pump includes: an introduction component, a lead-out component and a mixing chamber;

The introduction component is connected to one end of the mixing chamber, and forms an introduction channel with a gradually narrowed aperture along the flow direction of the power fluid, for accelerating the power fluid and introducing the power fluid into the mixing chamber;

The lead-out component is connected to the other end of the mixing chamber, and a lead-out channel with a gradually increasing aperture is formed along the flow direction of the dynamic fluid. The mixed liquid in the mixing chamber is led out of the mixing chamber;

The mixing chamber is used for the mixing of the dynamic fluid and the passive fluid to obtain the mixed fluid. The mixing chamber is provided with a suction port, and the suction port is communicated with the inlet channel and the outlet channel, and is used for The passive fluid is aspirated.

Preferably, the introduction assembly includes an inlet pipe, an inlet ferrule and a nozzle;

the inlet pipe is connected with the mixing chamber through the inlet ferrule;

The nozzle is arranged between the mixing chamber and the outlet of the inlet pipe, a conical hole is formed in the nozzle, and the outlet of the conical hole is located in the mixing chamber.

Preferably, the inlet ferrule and the mixing chamber are threadedly connected.

Preferably, seals are provided between the inlet pipe and the nozzle and between the nozzle and the mixing chamber.

Preferably, the lead-out assembly includes a throat pipe, a diffuser pipe and an outlet ferrule;

The diffusion pipe is connected with the mixing chamber through the outlet ferrule, and a conical hole is formed in the diffusion pipe;

The throat pipe is arranged between the mixing chamber and the inlet of the diffusion pipe, and a through hole is arranged in the throat pipe, and the through hole is connected with the small end of the conical hole of the diffusion pipe.

Preferably, the outlet ferrule and the mixing chamber are threadedly connected.

Preferably, seals are provided between the throat pipe and the mixing chamber and between the throat pipe and the diffusion pipe.

Preferably, the inlet of the throat is provided with a chamfer, and the maximum diameter of the chamfer is greater than or equal to the diameter of the outlet end of the introduction channel.

Preferably, the centerline of the introduction channel is collinear with the centerline of the outlet channel, and both centerlines are perpendicular to the centerline of the suction port.

Another object of the embodiments of the present invention is to provide a liquid pumping system, the liquid pumping system comprising:

The novel pulsed liquid jet pump as described in any one of the above embodiments;

A pulsed power fluid generating device, the power fluid outlet of the pulsed power fluid generating device is connected with the inlet pipe of the novel pulsed liquid jet pump for generating pulsed power fluid.

The novel pulsed liquid jet pump provided by the embodiment of the present invention has the following beneficial effects:

The pressure energy of the power fluid is converted into kinetic energy through the constricted inlet channel, so that negative pressure is formed in the mixing chamber to inhale the passive fluid. There are no moving parts inside the jet pump, the structure is simple, it is easy to maintain, and it is suitable for more complex working conditions;

In cooperation with the pulsed power fluid generating device, the energy and mass transfer efficiency of the traditional constant-direction jet system is increased by 10% to 20%.

Description of drawings

FIG. 1 is a schematic structural diagram of a novel pulsed liquid jet pump provided by an embodiment of the present invention.

In the drawings: 1. Inlet pipe; 2. Inlet ferrule; 3. Nozzle; 4. Mixing chamber; 5. Throat pipe; 6. Outlet ferrule; 7. Diffusion pipe.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

Example 1:

As shown in FIG. 1 , it is a structural diagram of a new type of pulsed liquid jet pump 1 provided by an embodiment of the present invention. The new type of pulsed liquid jet pump includes: an introduction component, a lead-out component, and a mixing chamber 4;

The introduction component is connected to one end of the mixing chamber 4, and forms an introduction channel with a gradually narrowing aperture along the flow direction of the motive fluid, which is used to speed up the motive fluid and introduce the motive fluid into the mixing chamber 4;

The lead-out component is connected to the other end of the mixing chamber 4, and a lead-out channel with a gradually increasing aperture is formed along the flow direction of the dynamic fluid. The mixed liquid in the mixing chamber 4 is led out of the mixing chamber 4;

The mixing chamber 4 is used for the mixing of the power fluid and the passive fluid to obtain the mixed fluid. The mixing chamber 4 is provided with a suction port, and the suction port is communicated with the inlet channel and the outlet channel. For inhalation of the passive fluid.

In the embodiment of the present invention, the lead-in component, the lead-out component and the mixing chamber 4 can be fixed or detachable, preferably a detachable connection, such as snap connection, screw connection and the like.

In the embodiment of the present invention, both the introduction channel and the export channel are connected with the inner space of the mixing chamber 4, the outlet of the introduction channel is directly opposite to the outlet of the export channel, and the power fluid ejected at high speed enters the outlet after passing through the space of the mixing chamber 4. In the channel, in the mixing chamber 4, due to the high flow rate, a negative pressure is formed in the mixing chamber 4, and the passive liquid is sucked into the mixing chamber 4, mixed with the power fluid to form a mixed liquid and enters the outlet channel, and is discharged along the outlet channel. In the embodiment of the present invention, it should be understood that the power fluid refers to a liquid with a certain pressure and speed, and its function is to form a negative pressure in the mixing chamber 4 so that the passive fluid is sucked into the mixing chamber 4 . The passive fluid here is relative to the dynamic fluid. As for the specific type of the dynamic fluid and the passive fluid, the embodiments of the present invention do not specifically limit this. In addition, it should be understood that in the mixing chamber 4, the motive fluid and the passive fluid are mixed to obtain a mixed fluid. In the present invention, the mixing process does not necessarily all occur in the mixing chamber 4, and the passive fluid enters into the mixing chamber 4 with the motive fluid. After exporting the channel, the two can also be mixed.

In the embodiment of the present invention, preferably, the centerline of the introduction channel and the centerline of the outflow channel are collinear, and both centerlines are perpendicular to the centerline of the suction port. Through this arrangement, the velocity direction of the motive fluid adjusted and ejected from the introduction component can enter into the outlet channel without changing, thereby reducing the energy loss.

In the embodiment of the present invention, preferably, the mixing chamber 4 is further provided with a pressure detection port, and the pressure sensor is installed through the pressure detection port, and can detect the liquid pressure in the mixing chamber 4 . As a specific optional solution, the axis of the pressure detection port is perpendicular to the axis of the suction port, the axis of the inlet channel and/or the outlet channel.

Embodiment 2:

The only difference between this embodiment and the first embodiment is that the introduction assembly includes an inlet pipe 1, an inlet ferrule 2 and a nozzle 3;

The inlet pipe 1 is connected with the mixing chamber 4 through the inlet ferrule 2;

The nozzle 3 is disposed between the mixing chamber 4 and the outlet of the inlet pipe 1 , a conical hole is formed in the nozzle 3 , and the outlet of the conical hole is located in the mixing chamber 4 .

Preferably, the inlet ferrule 2 and the mixing chamber 4 are screwed together.

Preferably, seals are provided between the inlet pipe 1 and the nozzle 3 and between the nozzle 3 and the mixing chamber 4 .

In the embodiment of the present invention, the nozzle 3 and the inlet pipe 1 are sleeved and fixed, and the nozzle 3 and the inlet pipe 1 are pressed against each other by the extrusion of the inlet ferrule 2 to the inlet pipe 1 . Leakage can be prevented by providing seals. The embodiment of the present invention also provides the main geometric dimensions of the introduction component, as shown in Table 1.

Table 1 Main internal geometric dimensions of the new type of pulsed liquid jet pump

Jet pump structure Geometry Nozzle inlet inner diameter/mm 20 Nozzle length/mm 60.6 Nozzle outlet inner diameter/mm 1.5 Nozzle hole angle/(°) 9.5

Embodiment three:

The only difference between this embodiment and the first or second embodiment is that: the lead-out assembly includes a throat pipe 5, a diffuser pipe 7 and an outlet ferrule 6;

The diffuser tube 7 is connected to the mixing chamber 4 through the outlet ferrule 6, and a conical hole is formed in the diffuser tube 7;

The throat pipe 5 is arranged between the mixing chamber 4 and the inlet of the diffuser pipe 7 , and a through hole is formed in the throat pipe 5 , and the through hole is smaller than the conical hole of the diffuser pipe 7 . end connection.

Preferably, the outlet ferrule 6 and the mixing chamber 4 are threadedly connected.

Preferably, seals are provided between the throat pipe 5 and the mixing chamber 4 and between the throat pipe 5 and the diffusion pipe 7 .

Preferably, the inlet of the throat pipe 5 is provided with a chamfer, and the maximum diameter of the chamfer is greater than or equal to the diameter of the outlet end of the introduction channel.

In the embodiment of the present invention, the throat pipe 5 and the diffuser pipe 7 are sleeved and fixed, and the throat pipe 5 and the diffuser pipe 7 are pressed against each other by the extrusion of the outlet ferrule 6 to the diffuser pipe 7 . Leakage can be prevented by providing seals. The embodiment of the present invention also provides the main geometric dimensions of the derived components, as shown in Table 2. The combination of the size-restricted outlet assembly listed in Table 2 and the size-restricted introduction assembly listed in Table 1 improves the efficiency by 10% to 20% compared to the conventional jet pump.

Table 2 The main internal geometric dimensions of the new pulsed liquid jet pump

Jet pump structure Geometry Outlet diameter of diffuser 7/mm 35 Distance between throat 5 and nozzle 3/mm 4 Inner hole angle of diffuser 7/(°) 4.1 Throat 5 inner diameter/mm 3.6

Embodiment 4:

The embodiment of the present invention provides a liquid pumping system, and the liquid pumping system includes:

The novel pulsed liquid jet pump described in any one of the above embodiments or any combination thereof;

A pulsed motive fluid generating device, the motive fluid outlet of the pulsating motive fluid generating device is connected with the inlet pipe 1 of the novel pulsed fluid jet pump for generating pulsating motive fluid.

In the embodiment of the utility model, the pulsed power fluid generating device mainly includes a pump body and a control device, and the pump body can adopt any form of pump body such as a vane pump, a plunger pump, a gear pump, etc. The control device is mainly used to control the formation of the pump body. The pulsed power fluid may include corresponding hardware and corresponding programs programmed in the hardware.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. A novel pulsed liquid jet pump, characterized in that it comprises: a lead-in assembly, a lead-out assembly and a mixing chamber;

the leading-in assembly is connected with one end of the mixing chamber, and forms a leading-in channel with the gradually reduced aperture along the flowing direction of the power liquid, so that the speed of the power liquid is increased and the power liquid is led into the mixing chamber;

the outlet assembly is connected with the other end of the mixing chamber, an outlet channel with the gradually increased aperture is formed along the flowing direction of the power liquid, and the inlet of the outlet channel is opposite to the outlet of the inlet channel and is used for leading the mixed liquid in the mixing chamber out of the mixing chamber;

the mixing chamber is used for mixing the power liquid and the passive liquid to obtain the mixed liquid, and is provided with a suction inlet which is communicated with the leading-in channel and the leading-out channel and is used for sucking the passive liquid.

2. The novel pulsed liquid jet pump of claim 1 wherein said intake assembly comprises an inlet tube, an inlet ferrule and a nozzle;

the inlet pipe is connected with the mixing chamber through the inlet ferrule;

the nozzle is arranged between the mixing chamber and the outlet of the inlet pipe, a tapered hole is formed in the nozzle, and the outlet of the tapered hole is located in the mixing chamber.

3. The novel pulsed liquid jet pump of claim 2 wherein said inlet ferrule is threadably connected to said mixing chamber.

4. The novel pulsed liquid jet pump of claim 2 wherein seals are provided between said inlet tube and said nozzle, and between said nozzle and said mixing chamber.

5. The novel pulsed liquid jet pump of claim 1 wherein said lead-out assembly comprises a throat, a diffuser, and an outlet ferrule;

the diffusion pipe is connected with the mixing chamber through the outlet clamping sleeve, and a conical hole is formed in the diffusion pipe;

the throat pipe is arranged between the mixing chamber and the inlet of the diffusion pipe, a through hole is arranged in the throat pipe, and the through hole is connected with the small end of the conical hole of the diffusion pipe.

6. The novel pulsed liquid jet pump of claim 5 wherein said outlet ferrule is threadably connected to said mixing chamber.

7. The novel pulsed liquid jet pump of claim 5 wherein seals are provided between said throat and said mixing chamber and between said throat and said diffuser.

8. The novel pulsed liquid jet pump according to claim 5, characterized in that the inlet of said throat is provided with a chamfer having a maximum diameter greater than or equal to the diameter of the outlet end of said introduction channel.

9. The novel pulsed liquid jet pump according to claim 1, wherein the center line of the introduction channel and the center line of the discharge channel are collinear, and the center lines of both are perpendicular to the center line of the suction inlet.

10. A liquid pumping system, comprising:

the novel pulsed liquid jet pump of any one of claims 1 to 9;

and the power liquid outlet of the pulse type power liquid generating device is connected with the inlet pipe of the novel pulse liquid jet pump and is used for generating pulse type power liquid.

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