Annular jet type solid-liquid mixer

Abstract

The utility model provides an annular jet type solid-liquid mixer which is characterized in that the periphery of a solid particle inlet pipe is sleeved with an outer sleeve, a liquid inlet pipe is arranged on the outer sleeve, a suction pipe is arranged at the open end of the outer sleeve, and a gap is formed between the inner ring of the open end of the outer sleeve and the periphery of the solid particle inlet pipe; the inside of the suction pipe communicates with the gap and the inside of the solid particle inlet pipe, one end of the suction pipe is connected with the diffusion pipe through the throat pipe, the inner diameter of the outlet end of the solid particle inlet pipe is smaller than that of the outlet end of the diffusion pipe, and a liquid medium in the liquid inlet pipe can flow into the diffusion pipe through the gap, the suction pipe and the throat pipe in sequence under pressure. The liquid medium with pressure flows into the suction pipe to form negative pressure in the solid particle inlet pipe, and the solid particle inlet pipe with negative pressure is used for sucking particles into the suction pipe from the external storage box. According to the annular jet type solid-liquid mixer disclosed by the utility model, continuous mixing of solid particles and liquid can be realized, and the mixing uniformity of the solid particles and the liquid is improved.

Description

Technical Field

[0001] The utility model belongs to the field of solid-liquid mixers, in particular to an annular jet type solid-liquid mixer. Background Art

[0002] Water is widely used as a common fire extinguishing agent in extinguishing forest fires. The strong fluidity of water causes it to be lost seriously on the surface of trees. Most of the water has not yet played a role in extinguishing the fire but has been lost, making it impossible to effectively control the fire. Hydrogel fire extinguishing agent has the characteristics of high water retention, strong adhesion and anti-burning, and has a good fire extinguishing effect. The polymer water-absorbing resin is mixed with liquid water to form a hydrogel. In the prior art, the solid-liquid mixer is a key component for achieving efficient mixing of polymer water-absorbing resin solid particles and liquid. The Venturi structure has the function of integrating suction and mixing. The working fluid with a certain pressure flows out through the nozzle of the Venturi structure, forming a certain vacuum at the nozzle outlet. The absorbed medium is mixed with the working fluid under the action of the pressure difference, and the mixture is discharged through the diffusion tube.

[0003] The nozzles of the prior art Venturi solid-liquid mixers are all located on the central axis, and the axis of the suction pipe for introducing the sucked medium is perpendicular to the main axis. The mixing uniformity of this type of central jet type solid-liquid mixer is not ideal. Utility Model Content

[0004] In view of this, the utility model aims to provide an annular jet type solid-liquid mixer to solve the problem of poor mixing uniformity of the solid-liquid mixer in the prior art, which affects the product quality.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The invention discloses an annular jet type solid-liquid mixer, comprising a solid particle inlet pipe, a liquid inlet pipe, an outer sleeve, a suction pipe, a throat and a diffuser. The outer periphery of the solid particle inlet pipe is sleeved with the outer sleeve, and the liquid inlet pipe is arranged on the outer sleeve. The suction pipe is installed at the open end of the outer sleeve, and a gap is arranged between the inner circle of the open end of the outer sleeve and the outer periphery of the solid particle inlet pipe. The cross-sectional area of ​​the gap is smaller than the cross-sectional area of ​​the outlet end of the suction pipe. The interior of the suction pipe is connected with the gap and the interior of the solid particle inlet pipe respectively, and one end of the suction pipe is connected with the diffuser through the throat. The inner diameter of the outlet end of the diffuser is larger than the inner diameter of the outlet end of the suction pipe, and the inner diameter of the outlet end of the solid particle inlet pipe is smaller than the inner diameter of the outlet end of the diffuser. The liquid medium in the liquid inlet pipe can flow into the diffuser from the gap, the suction pipe and the throat in sequence under pressure. The pressurized liquid medium flows into the suction pipe and flows to form a negative pressure in the solid particle inlet pipe. The negative pressure solid particle inlet pipe is used to suck particles from an external storage tank into the suction pipe.

[0007] The suction pipe is a hollow frustum structure, the small mouth end of the suction pipe is connected to the throat pipe, and the inner diameter of the small mouth end of the suction pipe, the inner diameter of the throat pipe and the inner diameter of the small mouth end of the diffusion pipe are the same.

[0008] The solid particle inlet pipe, the suction pipe, the throat pipe, the outer sleeve and the diffusion pipe are all coaxially arranged, and the liquid inlet pipe and the outer sleeve are arranged perpendicularly to each other.

[0009] A distribution pipe is arranged between the suction pipe and the outer sleeve, and the distribution pipe is fixedly sleeved to the outer periphery of one end of the solid particle inlet pipe, one end of the distribution pipe is fixedly connected to the large mouth end of the suction pipe, and the other end of the distribution pipe is sealed and connected to the open end of the outer sleeve.

[0010] A sealing rubber ring is arranged between the distribution pipe and the outer sleeve.

[0011] A plurality of injection ports are arranged on the distribution pipe along the circumferential direction, and the gap is connected to the suction pipe through the injection ports.

[0012] The cross section of the injection port is a trapezoidal structure, and the inner diameter of the outlet end of the injection port is smaller than the inner diameter of the inlet end of the injection port.

[0013] The sum of the cross-sectional areas of the outlet ends of the plurality of injection ports is smaller than the cross-sectional area of ​​the throat.

[0014] The outer periphery of the solid particle inlet pipe is provided with threads, the bottom center of the outer sleeve is provided with a threaded hole, and the outer sleeve is detachably connected to the outer periphery of the solid particle inlet pipe through the threaded hole.

[0015] Compared with the prior art, the annular jet solid-liquid mixer described in the utility model has the following beneficial effects:

[0016] The annular gap forms an annular jet type solid-liquid mixer to achieve efficient and continuous mixing of polymer water-absorbent resin solid particles and liquid. The distribution of the solid particle inlet pipe and the annularly arranged liquid jet nozzle improves the solid-liquid mixing uniformity of the polymer water-absorbent resin solid particles and water compared to the central jet type solid-liquid mixer. The solid-liquid mixing uniformity of the annular jet type solid-liquid mixer can reach more than 80%. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural schematic diagram of an annular jet type solid-liquid mixer according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of an annular jet type solid-liquid mixer according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the assembly of the solid particle inlet pipe and the distribution pipe according to an embodiment of the utility model;

[0021] Figure 4 It is a cross-sectional schematic diagram of the assembly of the solid particle inlet pipe and the distribution pipe according to an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1-solid particle inlet pipe; 2-liquid inlet pipe; 3-outer sleeve; 31-gap; 4-intake pipe; 5-throat pipe; 6-diffusion pipe; 7-distribution pipe; 71-injection port; 8-sealing rubber ring. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection 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 the present invention can be understood by specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] like Figure 1-Figure 4As shown, an annular jet type solid-liquid mixer comprises a solid particle inlet pipe 1, a liquid inlet pipe 2, an outer sleeve 3, a suction pipe 4, a throat 5 and a diffuser 6. The outer periphery of the solid particle inlet pipe 1 is sleeved with the outer sleeve 3, and the liquid inlet pipe 2 is arranged on the outer sleeve 3. The suction pipe 4 is installed at the open end of the outer sleeve 3, and a gap 31 is arranged between the inner circle of the open end of the outer sleeve 3 and the outer periphery of the solid particle inlet pipe 1. The cross-sectional area of ​​the gap 31 is smaller than the cross-sectional area of ​​the outlet end of the suction pipe 4. The interior of the suction pipe 4 is connected to the gap 31 and the interior of the solid particle inlet pipe 1 respectively, and one end of the suction pipe 4 is connected to the diffuser 6 through the throat 5. The inner diameter of the outlet end of the diffuser 6 is larger than the inner diameter of the outlet end of the suction pipe 4, and the inner diameter of the outlet end of the solid particle inlet pipe 1 is smaller than the inner diameter of the outlet end of the diffuser 6. 6, the liquid medium in the liquid inlet pipe 2 can flow into the diffuser 6 from the gap 31, the suction pipe 4 and the throat 5 in sequence under pressure, and the pressurized liquid medium flowing into the suction pipe 4 can form a negative pressure in the solid particle inlet pipe 1, and the negative pressure solid particle inlet pipe 1 is used to suck particles from the external storage tank into the suction pipe 4. The annular gap 31 forms an annular jet type solid-liquid mixer to achieve efficient and continuous mixing of polymer water-absorbing resin solid particles and liquid. The distribution mode of the solid particle inlet pipe 1 and the annularly arranged liquid jet nozzle improves the solid-liquid mixing uniformity of the polymer water-absorbing resin solid particles and water compared with the central jet type solid-liquid mixer, and the solid-liquid mixing uniformity of the annular jet type solid-liquid mixer can reach more than 80%.

[0029] like Figure 1 As shown, the suction pipe 4 is a hollow frustum structure, the small end of the suction pipe 4 is connected to the throat 5, and the inner diameter of the small end of the suction pipe 4, the inner diameter of the throat 5 and the inner diameter of the small end of the diffusion tube 6 are the same, the solid particle inlet pipe 1, the suction pipe 4, the throat 5, the outer sleeve 3 and the diffusion tube 6 are all coaxially arranged, and the liquid inlet pipe 2 and the outer sleeve 3 are arranged perpendicular to each other.

[0030] A distribution pipe 7 is arranged between the suction pipe 4 and the outer sleeve 3, and the distribution pipe 7 is fixedly sleeved to the outer periphery of one end of the solid particle inlet pipe 1, one end of the distribution pipe 7 is fixedly connected to the large-mouthed end of the suction pipe 4, and the other end of the distribution pipe 7 is sealed and connected to the open end of the outer sleeve 3. The distribution pipe 7 is used to facilitate installation and maintenance by the staff. A sealing rubber ring 8 is arranged between the distribution pipe 7 and the outer sleeve 3 to improve the sealing performance of this part. A plurality of injection ports 71 are arranged on the distribution pipe 7 along the circumference, and the gap 31 is connected to the suction pipe 4 through the injection ports 71. The pressurized liquid medium flows out of the injection ports 71 to form a negative pressure in the solid particle inlet pipe 1. Under different operating conditions, only the distribution pipe 7 equipped with injection ports 71 of different calibers can be replaced to complete the change of the entire device, so as to improve the versatility of parts, such as Figure 4 As shown, the cross section of the injection port 71 is a trapezoidal structure, and the inner diameter of the outlet end of the injection port 71 is smaller than the inner diameter of the inlet end of the injection port 71 .

[0031] The sum of the cross-sectional areas of the outlet ends of the plurality of injection ports 71 is smaller than the cross-sectional area of ​​the throat 5. The injection port 71 is a tapered cavity with a gradually decreasing inner diameter. The inner diameter of the outlet end of the injection port 71 is smaller than the inner diameter of the inlet end of the injection port 71. In this embodiment, the number of the injection ports 71 is 4, and the 4 injection ports 71 are evenly arranged in a ring around the outlet of the solid particle inlet pipe 1.

[0032] The sum of the cross-sectional areas of the four injection ports 71 is smaller than the cross-sectional area of ​​the throat 5. The liquid phase fluid from the liquid inlet pipe 2 passes through the tapered structure of the injection port 71, forming a relatively negative pressure zone in the inner area of ​​the suction pipe 4. The solid particles enter the suction pipe 4 through the solid particle inlet pipe 1 under the action of negative pressure, and are mixed with the liquid through turbulence. The solid-liquid mixture is transported to the throat 5 and the diffusion pipe 6 in sequence along the main axis.

[0033] The outer periphery of the solid particle inlet pipe 1 is provided with threads, and the bottom center of the outer sleeve 3 is provided with a threaded hole, and the outer sleeve 3 is detachably connected to the outer periphery of the solid particle inlet pipe 1 through the threaded hole, so that the staff can disassemble and assemble the outer sleeve 3. During installation, hydraulic tape can be wrapped around the threads to improve the sealing of this part.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An annular jet type solid-liquid mixer, characterized in that: The invention comprises a solid particle inlet pipe (1), a liquid inlet pipe (2), an outer sleeve (3), a suction pipe (4), a throat pipe (5) and a diffusion pipe (6); the outer sleeve (3) is sleeved around the outer sleeve (3), the liquid inlet pipe (2) is arranged on the outer sleeve (3), the suction pipe (4) is installed at the open end of the outer sleeve (3), and a gap (31) is arranged between the inner circle of the open end of the outer sleeve (3) and the outer periphery of the solid particle inlet pipe (1); the cross-sectional area of ​​the gap (31) is smaller than the cross-sectional area of ​​the outlet end of the suction pipe (4); the interior of the suction pipe (4) is connected to the gap (31) and the interior of the solid particle inlet pipe (1) respectively. The invention relates to a liquid inlet pipe (2), wherein one end of the suction pipe (4) is connected to the diffusion pipe (6) through a throat pipe (5); the inner diameter of the outlet end of the diffusion pipe (6) is larger than the inner diameter of the outlet end of the suction pipe (4); the inner diameter of the outlet end of the solid particle inlet pipe (1) is smaller than the inner diameter of the outlet end of the diffusion pipe (6); the liquid medium in the liquid inlet pipe (2) can flow into the diffusion pipe (6) in sequence through the gap (31), the suction pipe (4) and the throat pipe (5); the pressurized liquid medium flows into the suction pipe (4) to form a negative pressure in the solid particle inlet pipe (1); the negative pressure solid particle inlet pipe (1) is used to suck particles from an external storage tank into the suction pipe (4).

2. The annular jet type solid-liquid mixer according to claim 1, characterized in that: The suction pipe (4) is a hollow truncated cone structure. The small end of the suction pipe (4) is connected to the throat pipe (5). The inner diameter of the small end of the suction pipe (4), the inner diameter of the throat pipe (5) and the inner diameter of the small end of the diffusion pipe (6) are the same.

3. The annular jet type solid-liquid mixer according to claim 1, characterized in that: The solid particle inlet pipe (1), the suction pipe (4), the throat pipe (5), the outer sleeve (3) and the diffusion pipe (6) are all coaxially arranged, and the liquid inlet pipe (2) and the outer sleeve (3) are arranged perpendicular to each other.

4. The annular jet type solid-liquid mixer according to claim 1, characterized in that: A distribution pipe (7) is arranged between the suction pipe (4) and the outer sleeve (3), and the distribution pipe (7) is fixedly sleeved on the outer periphery of one end of the solid particle inlet pipe (1), one end of the distribution pipe (7) is fixedly connected to the large mouth end of the suction pipe (4), and the other end of the distribution pipe (7) is sealedly connected to the open end of the outer sleeve (3).

5. The annular jet type solid-liquid mixer according to claim 4, characterized in that: A sealing rubber ring (8) is arranged between the distribution pipe (7) and the outer sleeve (3).

6. The annular jet type solid-liquid mixer according to claim 4, characterized in that: A plurality of injection ports (71) are arranged on the distribution pipe (7) along the circumferential direction, and the slit (31) is connected to the suction pipe (4) through the injection ports (71).

7. The annular jet type solid-liquid mixer according to claim 6, characterized in that: The cross section of the injection port (71) is a trapezoidal structure, and the inner diameter of the outlet end of the injection port (71) is smaller than the inner diameter of the inlet end of the injection port (71).

8. The annular jet type solid-liquid mixer according to claim 6, characterized in that: The sum of the cross-sectional areas of the outlet ends of the plurality of injection ports (71) is smaller than the cross-sectional area of ​​the throat (5).

9. The annular jet type solid-liquid mixer according to claim 1, characterized in that: The outer periphery of the solid particle inlet pipe (1) is provided with threads, the bottom center of the outer sleeve (3) is provided with a threaded hole, and the outer sleeve (3) is detachably connected to the outer periphery of the solid particle inlet pipe (1) through the threaded hole.

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