Separation structure applied to fluid mixture in jet pump

Abstract

The utility model provides a separating structure applied to a fluid mixture in a jet pump, the jet pump comprises a suction chamber, a throat pipe and a diffusion pipe which are sequentially communicated, a straight pipe is arranged in the suction chamber, a nozzle is arranged at the front end of the straight pipe, the separating structure comprises a separating pipe, and the separating pipe is arranged between the throat pipe and the diffusion pipe. The separation pipe comprises a divergent section, a blade separation section and a separation straight pipe section which are sequentially connected with the throat pipe, and the diffusion pipe is communicated with an impurity collector. According to the separation structure applied to the fluid mixture in the jet pump, the separation pipe is arranged at the outlet of the throat pipe, centrifugal force is generated on the fluid through the separation blades of the blade separation section, and then the mixture is better separated; impurities enter an annular space between the diffusion pipe section and the shell supporting the diffusion section and then are collected into an impurity collector.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fluid machinery engineering equipment purification separation, concretely relates to a separation structure for fluid mixture in the jet pump. BACKGROUND

[0002] The jet pump is a kind of fluid conveying machinery and mixing reaction equipment, and the basic structure of the jet pump is mainly composed of a straight pipe, a nozzle, a suction chamber, a throat pipe and a diffusion pipe.The jet pump has the characteristics of no moving parts, simple structure, reliable operation and good sealing performance.The jet pump can improve the suction range of the whole device and improve the cavitation performance when combined with other working pumps.Due to these advantages, the jet pump is widely used in various departments of the national economy such as agriculture, animal husbandry, fishery, water conservancy, electricity, transportation and environmental protection.

[0003] However, in some fields where the content of solid impurities in the jet pump outflow is required to be high, if there is no filter device or the filter device before the pump cannot filter some diameter of solid impurities, and the content of solid impurities in the fluid is not further reduced, the solid impurity content standard cannot be reached, and in the environment where the content of solid impurities in the jet pump outflow is required to be high, a series of problems such as abrasion and damage to stability will occur. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a separation structure for fluid mixture in the jet pump, which overcomes the above technical problems in the prior art.

[0005] Therefore, the utility model provides the technical scheme as follows:

[0006] A separation structure for fluid mixture in the jet pump, the jet pump includes a suction chamber, a throat pipe and a diffusion pipe connected in sequence, a straight pipe is arranged in the suction chamber, a nozzle is arranged at the front end of the straight pipe, and the separation structure includes a separation pipe, the separation pipe is arranged between the throat pipe and the diffusion pipe, the separation pipe includes a diverging section, a blade separation section and a separation straight pipe section connected in sequence with the throat pipe, and an impurity collector is connected to the diffusion pipe.

[0007] The diffusion pipe includes a support diffuser section shell and a diffusion pipe section, the support diffuser section shell and the separation straight pipe section are connected, the diffusion pipe section is arranged in the support diffuser section shell, and the annular space between the front part of the diffusion pipe section and the support diffuser section shell is connected with the impurity collector.

[0008] The blade separation section is uniformly provided with 3-5 separation blades in the circumferential direction.

[0009] The diameter ratio of the throat pipe to the tail part of the diverging section is 1:1.1-1.2.

[0010] The ratio of the tail diameter of the separation straight pipe section and the support diffuser section shell is 1:2.5-3.

[0011] The outlet of the separation blade is 35-45 degrees with the horizontal direction.

[0012] The surface of the separation blade is smooth and the thickness is 0.015-0.02 times of the diameter of the blade separation section.

[0013] The diffuser section, the blade separation section and the separation straight pipe section are sequentially connected through flanges.

[0014] The beneficial effects of the utility model are:

[0015] The separation structure applied to the fluid mixture in the fluid pump is provided with a separation pipe at the outlet of the throat pipe, the separation blade of the blade separation section generates centrifugal force on the fluid, and then the separation of the mixture is better, so that the impurities are collected to the impurity collector after entering the annular space between the diffusion pipe section and the support diffuser section shell.

[0016] The surface of the separation blade is smooth, so as to reduce the impact loss and energy loss; the outlet of the separation blade is 35-45 degrees with the horizontal direction, so as to make the solid impurities in the fluid generate a more powerful centrifugal force field and separate more thoroughly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of an embodiment of the utility model.

[0018] In the figure: 1, straight pipe; 2, nozzle; 3, suction chamber; 4, throat pipe; 5, diffuser section; 6, blade separation section; 7, separation blade; 8, separation straight pipe section; 9, support diffuser section shell; 10, diffusion pipe section; 11, impurity collector. DETAILED DESCRIPTION

[0019] The following is described by specific embodiments to illustrate the embodiments of the utility model, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0020] Exemplary embodiments of the utility model are described herein with reference to the accompanying drawings, however, the utility model can be implemented in many different forms, and is not limited to the embodiments described herein, and these embodiments are provided to thoroughly and completely disclose the utility model and fully convey the scope of the utility model to the person skilled in the art. The terms in the exemplary embodiments shown in the drawings are not limited to the utility model. In the drawings, the same units / elements use the same reference numerals.

[0021] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0022] Embodiment 1

[0023] The utility model provides a kind of separation structure applied to fluid mixture in fluid pump, and fluid pump includes the communication of suction chamber 3, throat pipe 4 and diffusion pipe in turn, and straight pipe 1 is equipped in suction chamber 3, and straight pipe 1 front end is equipped with nozzle 2, and separation structure includes separation pipe, and the separation pipe is located between throat pipe 4 and diffusion pipe, and the separation pipe includes gradually expanding section 5, blade separation section 6 and separation straight pipe section 8 connected with throat pipe 4 in turn, and diffusion pipe is communicated with impurity collector 11.

[0024] As shown in Figure 1 The annular space between the straight pipe 1 and the suction chamber 3 helps to stabilize the pressure of the water flow. When the water flow enters through the suction chamber 3, it may have certain pressure fluctuations. The annular space can act as a buffer, making the pressure of the water flow more uniform and stable, optimizing the pressure and velocity distribution of the water flow, and effectively preventing the occurrence of cavitation phenomenon.

[0025] Working principle: as shown in Figure 1 The fluid enters through the suction chamber 3 and the straight pipe 1, enters the throat pipe 4 through the annular space and the nozzle 2 respectively, and then passes through the gradually expanding section 5, the blade separation section 6 and the separation straight pipe section 8 for impurity separation in turn, and finally is discharged through the impurity collector 11 connected by the diffusion pipe.

[0026] The utility model realizes the separation of mixed solid impurities by setting separation pipe at the outlet of throat pipe 4.

[0027] Embodiment 2

[0028] Based on embodiment 1, the utility model provides a kind of separation structure applied to fluid mixture in fluid pump, and the diffusion pipe includes support diffuser section shell 9 and diffusion pipe section 10, and support diffuser section shell 9 and separation straight pipe section 8 are communicated, and diffusion pipe section 10 is located in support diffuser section shell 9, and the annular space between the front of diffusion pipe section 10 and support diffuser section shell 9 and impurity collector 11 are communicated.

[0029] As shown in Figure 1 The impurities are separated by the separation pipe and enter the annular space between the front of the diffusion pipe section 10 and the support diffuser section shell 9, and are discharged through the lower opening of the support diffuser section shell 9, achieving the purpose of separation.

[0030] Embodiment 3

[0031] On the basis of embodiment 1, this embodiment provides a separation structure applied to fluid mixture in the jet pump, wherein 3-5 separation vanes 7 are uniformly distributed along the circumferential direction in the vane separation section 6. The surface of the separation vane 7 is smooth and the thickness is 0.015-0.02 times the diameter of the vane separation section 6.

[0032] The outlet of the separation vane 7 forms an angle of 35°-45° with the horizontal direction.

[0033] The surface of the separation vane 7 should be polished to avoid impact loss and reduce energy loss; the leading edge radius and the vane thickness should also be small, the vane thickness is 0.015-0.02 times the diameter of the separation pipe, the vane curvature cannot be too large, and the flow direction should be tangent to the vane profile.

[0034] The outlet of the separation vane 7 forms an angle with the horizontal direction, which can generate a stronger centrifugal force field for the solid impurities in the fluid. In this embodiment, the outlet of the separation vane 7 forms an angle of 40° with the horizontal direction.

[0035] Embodiment 4

[0036] On the basis of embodiment 2, this embodiment provides a separation structure applied to fluid mixture in the jet pump, wherein the diameter ratio of the throat pipe 4 and the tail of the diffuser section 5 is 1:1.1-1.2.

[0037] The diameter ratio of the separation straight pipe section 8 and the tail of the support diffuser section shell 9 is 1:2.5-3.

[0038] Embodiment 5

[0039] On the basis of embodiment 1, this embodiment provides a separation structure applied to fluid mixture in the jet pump, wherein the diffuser section 5, the vane separation section 6 and the separation straight pipe section 8 are sequentially connected through flanges.

[0040] The separation vane 7 is welded on the inner wall of the vane separation section 6, and the diffuser pipe section 10 and the support diffuser section shell 9 are also connected through welding. In order to facilitate installation and disassembly, the diffuser section 5, the vane separation section 6 and the separation straight pipe section 8 are sequentially connected through flanges.

[0041] The fluid passes through the separation vane 7 welded on the vane separation section 6, which induces rotation, and the solid impurities can be separated from the mixture under the action of centrifugal force and discharged through the lower opening of the support diffuser section shell to achieve the purpose of separation. Thus, the separation of solid impurities in the mixture is realized.

[0042] The above examples are only illustrative of the present application, and do not constitute a limitation on the scope of protection of the present application. Any design identical or similar to the present application falls within the scope of protection of the present application.

Claims

1. A separation structure for fluid mixtures in a jet pump, the jet pump comprising a suction chamber, a throat, and a diffuser connected in sequence, the suction chamber having a straight pipe and a nozzle at the front end of the straight pipe, characterized in that: It includes a separation tube disposed between a throat tube and a diffuser tube. The separation tube includes a gradually expanding section, a blade separation section and a separation straight tube section connected in sequence to the throat tube. An impurity collector is connected to the diffuser tube.

2. The separation structure for fluid mixtures in a jet pump according to claim 1, characterized in that: The diffuser tube includes a supporting diffuser section shell and a diffuser tube section. The supporting diffuser section shell is connected to a separate straight tube section. The diffuser tube section is located inside the supporting diffuser section shell. The annular space between the front of the diffuser tube section and the supporting diffuser section shell is connected to an impurity collector.

3. The separation structure for fluid mixtures in a jet pump according to claim 1, characterized in that: The blade separation section has 3-5 separation blades evenly distributed along the circumference.

4. The separation structure for fluid mixtures in a jet pump according to claim 1, characterized in that: The diameter ratio of the throat and the tail of the gradually dilating section is 1:1.1-1.

2.

5. A separation structure for fluid mixtures in a jet pump according to claim 2, characterized in that: The diameter ratio of the tail end of the separated straight pipe section and the supporting diffuser section is 1:2.5-3.

6. The separation structure for fluid mixtures in a jet pump according to claim 3, characterized in that: The angle between the outlet of the separating blade and the horizontal direction is 35°-45°.

7. The separation structure for fluid mixtures in a jet pump according to claim 3, characterized in that: The surface of the separating blade is smooth and its thickness is 0.015-0.02 times the diameter of the separating section of the blade.

8. The separation structure for fluid mixtures in a jet pump according to claim 3, characterized in that: The separating blades are welded to the inner wall of the blade separating section.

9. A separation structure for fluid mixtures in a jet pump according to claim 2, characterized in that: The diffuser section is welded to the shell of the supporting diffuser section.

10. A separation structure for fluid mixtures in a jet pump according to any one of claims 1-9, characterized in that: The expanding section, blade separation section, and separation straight pipe section are connected sequentially by flanges.

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