Liquid-liquid ejector

Abstract

The utility model relates to a liquid-liquid injector, comprising a power liquid input component, a liquid pumping component and a liquid discharge component, wherein the power liquid input component comprises a first connecting end cover and a nozzle, the first connecting end cover and the nozzle are fixed together by clamping, the nozzle has a first liquid inlet and a first liquid outlet, the first liquid inlet and the first liquid outlet are connected; the liquid pumping component comprises a second connecting end cover and a liquid pumping pipeline, the liquid pumping pipeline and the second connecting end cover are fixedly connected together, the liquid pumping pipeline has a liquid inlet through hole, and the liquid inlet through hole passes through the liquid pumping pipeline; the liquid discharge component has a first plug interface, a second plug interface and an inner cavity, the first plug interface and the second plug interface are both connected to the inner cavity, and the nozzle of the power liquid input component is plugged into the first plug interface; the liquid discharge component also has a liquid discharge channel, and the liquid discharge channel is connected to the inner cavity.

Description

Technical Field

[0001] The utility model relates to the field of injectors, in particular to a liquid-liquid injector. Background Art

[0002] A pump is a common device, and its main function is to suck and transfer liquid. At present, the pump in the prior art is formed by assembling a plurality of parts together by bolts / screws, and the pump has a complex structure and is difficult to assemble and disassemble.

[0003] In addition, some pumps in the prior art have weak suction force. If the pipe connected to the suction pump is too long, it is very likely that the liquid cannot be sucked up. Some pumps in the prior art have strong suction force, but the high suction force causes the ejection speed of the sucked liquid to be too high, causing the high-speed ejected liquid to cause certain damage to people or other objects around. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a liquid-liquid injector.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid-liquid ejector, comprising a power liquid input component, a liquid pumping component and a liquid discharge component, wherein the power liquid input component comprises a first connecting end cover and a nozzle, the first connecting end cover and the nozzle are fixed together by clamping, the nozzle has a first liquid inlet and a first liquid outlet, the first liquid inlet and the first liquid outlet are connected; the liquid pumping component comprises a second connecting end cover and a liquid pumping pipeline, the liquid pumping pipeline and the second connecting end cover are fixedly connected together, the liquid pumping pipeline has a liquid inlet and a first liquid outlet. Hole, the liquid inlet through hole passes through the liquid pumping pipeline; the liquid discharge member has a first plug interface, a second plug interface, and an inner cavity, the first plug interface and the second plug interface are both connected to the inner cavity, the nozzle of the power liquid input component is plugged into the first plug interface, and the liquid pumping pipeline of the liquid pumping component is plugged into the second plug interface, so that the first liquid outlet of the nozzle is connected to the inner cavity of the liquid discharge member, and the liquid pumping pipeline of the liquid pumping component is connected to the inner cavity of the liquid discharge member; the liquid discharge member also has a liquid discharge channel, and the liquid discharge channel is connected to the inner cavity.

[0006] Furthermore, the nozzle is a cone, and the inner diameter of the first liquid inlet of the nozzle is larger than the inner diameter of the first liquid outlet, so that the pressure of the liquid decreases continuously but the flow rate increases continuously when the power fluid flows from the first liquid inlet to the first liquid outlet.

[0007] Furthermore, the liquid discharge component also has a contraction chamber, which is in the shape of a bell mouth, and has a second liquid inlet and a second liquid outlet, the second liquid inlet and the second liquid outlet are fluidically connected, the inner diameter of the second liquid inlet is larger than the inner diameter of the second liquid outlet, and the second liquid inlet is connected to the inner cavity; liquid material is sucked into the inner cavity from the liquid extraction pipe of the liquid extraction component and flows into the contraction chamber; the contraction chamber and the liquid discharge channel are fluidically connected.

[0008] Furthermore, the drainage member also has a uniform flow through hole, which is connected to the contraction chamber and fluidically connected on one hand, and connected to the drainage channel and fluidically connected on the other hand.

[0009] Furthermore, the longitudinal cross-section of the liquid discharge channel is trapezoidal, and the liquid discharge channel has a third liquid inlet and a third liquid outlet, the third liquid inlet and the third liquid outlet are fluidically connected, the inner diameter of the third liquid inlet is smaller than the inner diameter of the third liquid outlet, and the third liquid inlet and the uniform flow through hole are docked and fluidically connected.

[0010] Furthermore, the drainage component has a first end and a second end, the first plug interface is formed at the first end of the drainage component, the first end is provided with a first connecting portion, and the first end cover of the power fluid input component and the first connecting portion of the first end are fixed together by bolts / screws, so that the power fluid input component and the drainage component are fixedly connected together.

[0011] Furthermore, the third liquid outlet of the discharge channel is formed at the second end of the discharge member, and the second end is provided with a third connecting portion. The liquid-liquid injector also includes a third end cover, and the third end cover and the third connecting portion are fixedly connected together by screws / bolts.

[0012] Furthermore, the drainage component has a bypass interface, the bypass interface has the second plug interface, the bypass interface is provided with a second connecting portion, and the second connecting end cover and the second connecting portion are fixedly connected together by screws / bolts.

[0013] The beneficial effects of the present application are as follows: the liquid-liquid injector provided by the present application has many advantages. Since the nozzle forms a negative pressure area in the inner cavity, thereby forming a pressure difference, the liquid is sucked into the inner cavity under the action of the pressure difference. Therefore, one advantage of the present application is that the suction force is large; since the discharge channel has a trapezoidal structure, the pressure increases and the flow rate decreases when the liquid flows in the discharge channel. Therefore, another advantage of the present application is that the speed of the extracted liquid is low, thereby reducing the risk of damaging surrounding people or objects to a certain extent; the present application also has other advantages, such as simple structure and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a structural schematic diagram of a liquid-liquid ejector provided by the utility model. DETAILED DESCRIPTION

[0015] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0016] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0017] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0018] Please refer to Figure 1The present application provides a liquid-liquid injector, which includes a power liquid input component 1, a pumping component 2 and a liquid discharge component 3, wherein the power liquid input component 1 includes a first connecting end cover 11 and a nozzle 12, the first connecting end cover 11 and the nozzle 12 are fixed together by clamping, the nozzle 12 has a first liquid inlet 121 and a first liquid outlet 122, the first liquid inlet 121 and the first liquid outlet 122 are connected; the pumping component 2 includes a second connecting end cover 21 and a liquid pumping pipe 22, the liquid pumping pipe 22 and the second connecting end cover 21 are fixedly connected together, the liquid pumping pipe 22 has a liquid inlet through hole 20, the liquid inlet through hole 20 The liquid discharge component 3 is connected to the liquid suction pipe 22; the liquid discharge component 3 has a first plug interface 30, a second plug interface 39, and an inner cavity 33, the first plug interface 30 and the second plug interface 39 are both connected to the inner cavity 33, the nozzle 12 of the power fluid input component 1 is plugged into the first plug interface 30, and the liquid suction pipe 22 of the liquid suction component 2 is plugged into the second plug interface 39, so that the first liquid outlet 122 of the nozzle 12 is connected to the inner cavity 33 of the liquid discharge component 3, and the liquid suction pipe 22 of the liquid suction component 2 is connected to the inner cavity 33 of the liquid discharge component 3; the liquid discharge component 3 also has a liquid discharge channel 36, and the liquid discharge channel is connected to the inner cavity 33. In this way, the power fluid enters the nozzle 12 of the power fluid input component 1, and then flows into the inner cavity 33 of the discharge component 3. The flow velocity of the power fluid increases when flowing through the nozzle 12, so that a negative pressure zone is formed in the area where the first liquid outlet 122 of the nozzle 12 and the inner cavity 33 intersect. Since the liquid suction pipe 22 of the liquid suction component 2 is connected to the inner cavity 33, a pressure difference is formed in the area where the liquid suction pipe 22 and the inner cavity 33 intersect with the negative pressure zone, so that the liquid in the liquid suction pipe 22 is pumped into the inner cavity 33 under the action of the pressure difference, and finally discharged from the discharge channel 36.

[0019] In one embodiment of the present application, the nozzle 12 is a cone, and the inner diameter of the first liquid inlet 121 of the nozzle 12 is larger than the inner diameter of the first liquid outlet 122, so that the pressure of the liquid continues to decrease but the flow rate continues to increase during the process of the power fluid flowing from the first liquid inlet 121 to the first liquid outlet 122.

[0020] In one embodiment of the present application, the discharge member 3 also has a contraction chamber 341, and the contraction chamber 341 is in the shape of a bell mouth. The contraction chamber 34 has a second liquid inlet 341 and a second liquid outlet 342. The second liquid inlet 341 and the second liquid outlet 342 are fluidically connected. The inner diameter of the second liquid inlet 341 is larger than the inner diameter of the second liquid outlet 342. The second liquid inlet 341 is connected to the inner cavity 33. Liquid material is sucked into the inner cavity 33 from the liquid extraction pipe 22 of the liquid extraction component 2 and flows into the contraction chamber 34. The contraction chamber 34 is fluidically connected to the discharge channel 36.

[0021] In one embodiment of the present application, the drainage member 3 further has a uniform flow through hole 35, which is connected to the contraction chamber 34 and fluidically connected on one hand, and connected to the drainage channel 36 and fluidically connected on the other hand.

[0022] In one embodiment of the present application, the longitudinal cross-section of the drainage channel 36 is trapezoidal, and the drainage channel 36 has a third liquid inlet 361 and a third liquid outlet 362. The third liquid inlet 361 and the third liquid outlet 362 are fluidically connected. The inner diameter of the third liquid inlet 361 is smaller than the inner diameter of the third liquid outlet 362. The third liquid inlet 361 and the uniform flow through hole 35 are connected and fluidically connected.

[0023] In one embodiment of the present application, the drainage member 3 has a first end and a second end, the first plug interface 30 is formed at the first end of the drainage member 3, the first end is provided with a first connecting portion 31, and the first end cover 11 of the power fluid input component 1 and the first connecting portion 31 of the first end are fixed together by bolts / screws, so that the power fluid input component 1 and the drainage member 3 are fixedly connected together.

[0024] In one embodiment of the present application, the third liquid outlet 362 of the liquid discharge channel 36 is formed at the second end of the liquid discharge member 3, the second end is provided with a third connecting portion 37, and the liquid-liquid ejector further comprises a third end cover 38, the third end cover 38 and the third connecting portion 37 are fixedly connected together by screws / bolts. In this way, the liquid-liquid ejector can be fixedly installed at other devices or preset positions through the third end cover 38.

[0025] In one embodiment of the present application, the drainage member 3 has a bypass interface 310, the bypass interface 310 has the second plug interface 39, the bypass interface 310 is provided with a second connecting portion 32, and the second connecting end cover 21 and the second connecting portion 32 are fixed together by screws / bolts.

[0026] The working principle of the present application is: the power fluid is sprayed from the nozzle 12 to the contraction chamber 34, and the nozzle 12 forms a negative pressure zone at the area where the power fluid intersects with the inner cavity 30 when spraying the power fluid at a high speed. The pressure of the intersection area between the pumping pipe 22 of the pumping component 2 and the inner cavity 30 forms a pressure difference with the negative pressure zone. Under the action of the pressure difference, the liquid in the pumping pipe 22 is pumped into the inner cavity 30 and flows into the contraction chamber 34. The flow rate of the liquid increases when passing through the contraction chamber 34, and then flows into the uniform flow through hole 35. The liquid maintains a uniform flow in the uniform flow through hole 35 and finally flows into the drainage channel 36. Since the drainage channel 36 is a trapezoidal structure, the pressure of the liquid gradually increases and the flow rate gradually decreases when flowing out of the drainage channel 26, so that the flow rate is reduced to a preset value during discharge.

[0027] The liquid-liquid ejector provided by the present application has many advantages. Since the nozzle forms a negative pressure area in the inner cavity, thereby forming a pressure difference, the liquid is sucked into the inner cavity under the action of the pressure difference. Therefore, one advantage of the present application is that the suction force is large; since the discharge channel has a trapezoidal structure, the pressure increases and the flow rate decreases when the liquid flows in the discharge channel. Therefore, another advantage of the present application is that the speed of the extracted liquid is low, thereby reducing the risk of damaging surrounding people or objects to a certain extent; the present application also has other advantages, such as simple structure and easy assembly.

[0028] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A liquid-liquid ejector, characterized in that: The invention comprises a power fluid input component, a pumping component and a liquid discharge component, wherein the power fluid input component comprises a first connecting end cover and a nozzle, the first connecting end cover and the nozzle are fixed together by snapping, the nozzle has a first liquid inlet and a first liquid outlet, the first liquid inlet and the first liquid outlet are connected; the pumping component comprises a second connecting end cover and a liquid pumping pipe, the liquid pumping pipe and the second connecting end cover are fixedly connected together, the liquid pumping pipe has a liquid inlet through hole, and the liquid inlet through hole passes through the liquid pumping pipe; the liquid discharge component has a first plug interface, a second plug interface and an inner cavity, the first plug interface and the second plug interface are both connected to the inner cavity, the nozzle of the power fluid input component is plugged into the first plug interface, and the liquid pumping pipe of the pumping component is plugged into the second plug interface, so that the first liquid outlet of the nozzle is connected to the inner cavity of the liquid discharge component, and the liquid pumping pipe of the pumping component is connected to the inner cavity of the liquid discharge component; the liquid discharge component also has a liquid discharge channel, and the liquid discharge channel is connected to the inner cavity.

2. The liquid-liquid ejector according to claim 1, characterized in that: The nozzle is a cone, and the inner diameter of the first liquid inlet of the nozzle is larger than the inner diameter of the first liquid outlet, so that the pressure of the liquid decreases continuously but the flow rate increases continuously when the power fluid flows from the first liquid inlet to the first liquid outlet.

3. The liquid-liquid ejector according to claim 2, characterized in that: The liquid discharge member also has a contraction chamber, which is in the shape of a bell mouth and has a second liquid inlet and a second liquid outlet. The second liquid inlet and the second liquid outlet are fluidically connected. The inner diameter of the second liquid inlet is larger than the inner diameter of the second liquid outlet. The second liquid inlet is connected to the inner cavity. Liquid material is sucked into the inner cavity from the liquid extraction pipeline of the liquid extraction component and flows into the contraction chamber. The contraction chamber is fluidically connected to the liquid discharge channel.

4. The liquid-liquid ejector according to claim 3, characterized in that: The liquid discharge member also has a uniform flow through hole, which is connected to the contraction chamber and in fluid communication on one hand, and connected to the liquid discharge channel and in fluid communication on the other hand.

5. The liquid-liquid ejector according to claim 4, characterized in that: The longitudinal cross-section of the liquid discharge channel is trapezoidal, and the liquid discharge channel has a third liquid inlet and a third liquid outlet. The third liquid inlet and the third liquid outlet are fluidically connected, the inner diameter of the third liquid inlet is smaller than the inner diameter of the third liquid outlet, and the third liquid inlet is connected to the uniform flow through hole and is fluidically connected.

6. The liquid-liquid ejector according to claim 5, characterized in that: The drainage piece has a first end and a second end, the first plug interface is formed at the first end of the drainage piece, the first end is provided with a first connecting portion, the first end cover of the power fluid input component and the first connecting portion of the first end are fixed together by bolts / screws, so that the power fluid input component and the drainage piece are fixedly connected together.

7. The liquid-liquid ejector according to claim 6, characterized in that: The third liquid outlet of the liquid discharge channel is formed at the second end of the liquid discharge member, and the second end is provided with a third connecting portion. The liquid-liquid injector also includes a third end cover, and the third end cover and the third connecting portion are fixedly connected together by screws / bolts.

8. The liquid-liquid ejector according to claim 7, characterized in that: The liquid discharge member has a bypass interface, the bypass interface has the second plug interface, a second connecting portion is provided on the bypass interface, and the second connecting end cover and the second connecting portion are fixedly connected together by screws / bolts.

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