Exhaust pipe assembly of desilting pump

Abstract

The utility model discloses an exhaust pipe assembly of a desilting pump, which belongs to the technical field of desilting pump accessory equipment and comprises a vacuum suction component for intermittently providing negative pressure for the desilting pump. The device is characterized by further comprising a secondary pressurizing structure assembly; the vacuum suction assembly is communicated with the pump discharge pipe orifice and the discharge pipeline through the secondary pressurization structure assembly; the secondary pressurization structure assembly comprises a reducing expansion port connector, a noise reduction connecting pipe and a Y-shaped three-way pipe. The nozzle, the necking connector, the exhaust pipe and the reducing expansion port connector are coaxially arranged. The desilting pump exhaust pipe assembly has the advantages that the desilting pump exhaust pipe assembly of the secondary pressurization structure assembly is provided, the desilting pump exhaust pipe assembly is matched with the contraction section and the expansion section of the nozzle, the necking connector, the exhaust pipe and the reducing expansion port connector to achieve the functions of the contraction section and the expansion section, and therefore the purpose of secondary pressurization is achieved, and suction force is increased from 6 psi to 8 psi to 10 psi to 12 psi.

Description

Technical Field

[0001] This utility model belongs to the technical field of dredging pump accessories and equipment, and more specifically relates to a dredging pump exhaust pipe assembly. Background Technology

[0002] When dredging, discharging sewage, and conveying mixtures of coal slurry and water containing lumps and granules, sewage pumps are typically used. Existing pneumatic dredging and sewage pumps include a pump body with an inlet pipe and a discharge pipe at each end. A pneumatic bidirectional knife gate valve is installed between the inlet and discharge pipes. A vacuum assembly is also installed on the outside of the pump body and connected to it. The vacuum assembly utilizes the Venturi principle to generate a vacuum, which helps to draw material from the pump body. Our company's earlier patent application, National Utility Model Patent No. 201820161412.7, discloses a vacuum suction device for a mine pneumatic dredging and sewage pump, which utilizes the Venturi principle to effectively solve the problems of low vacuum and long vacuuming time in mine pneumatic dredging and sewage pumps, increasing the rated flow rate of the mine pneumatic dredging and sewage pump and thus improving work efficiency.

[0003] However, with product iteration and customer demand, this product can no longer meet customer needs. Although it can generate 6-8 psi suction when applied to pneumatic sludge pumps, it is no longer sufficient to meet current market demands. Therefore, after long-term research and development, our company unexpectedly created the sludge pump exhaust pipe assembly, which, by utilizing the Venturi principle, can further improve suction. Utility Model Content

[0004] To solve the above problems and overcome the shortcomings of the existing technology, this utility model provides a dredging pump exhaust pipe assembly;

[0005] The first technical problem to be solved is that most of the pneumatic sludge removal and sewage pumps currently on the market use the vacuum suction device that our company applied for earlier. Although this product can generate a suction force of 6-8 psi when applied to pneumatic sludge removal and sewage pumps, it can no longer meet the current market demand.

[0006] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows: the exhaust pipe assembly of the dredging pump includes a vacuum suction component that intermittently provides negative pressure to the dredging pump; characterized in that: it also includes a secondary pressurization structure component;

[0007] The vacuum suction assembly is connected to the pump discharge port and discharge pipe through a secondary pressurization structure assembly.

[0008] The vacuum suction assembly includes a cavity with a vacuum port on one side connected to a pump. A straight inlet pipe passes through one side of the cavity wall, perpendicular to the vacuum port, and connects to a nozzle. A constricted connector is located on the other side of the cavity wall, with the nozzle and the constricted connector coaxially arranged without contact. The constricted connector connects to an exhaust pipe, which is connected to a secondary pressurization structure assembly.

[0009] The secondary booster structure component includes a variable diameter expansion port connector, a noise reduction connecting pipe, and a Y-type tee pipe. The nozzle, the constriction connector, the exhaust pipe, and the variable diameter expansion port connector are coaxially arranged.

[0010] Furthermore, one end of the variable diameter expansion joint is detachably connected to the exhaust pipe, and the exhaust pipe is connected to the constriction connector; the other end of the variable diameter expansion joint is detachably connected to the noise reduction connecting pipe; the noise reduction connecting pipe is connected to the pump discharge port and the discharge pipe respectively through a Y-shaped tee pipe.

[0011] Furthermore, the nozzle has a constriction section and a diffuser section connected in sequence to the inlet section, and the connection between the constriction section and the diffuser section is the throat.

[0012] Furthermore, the nozzle is detachably connected to the intake straight pipe via threads.

[0013] Furthermore, the lumen and the constricted connector are detachably connected by a sealing gasket and a clamp.

[0014] Furthermore, a pneumatic valve is installed on the exhaust pipe.

[0015] Furthermore, the flaring cone angle of the variable diameter expansion joint is 20-60 degrees.

[0016] The beneficial effects of this utility model are:

[0017] One advantage of this invention is that it provides a secondary pressurization structure component for the sludge pump exhaust pipe assembly. In conjunction with the nozzle's constriction section and diffuser section, the constriction connector, exhaust pipe, and variable diameter expansion port joint serve as the constriction section and diffuser section, thereby achieving the purpose of secondary pressurization and increasing the suction from 6-8 psi to 10-12 psi. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Appendix Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Appendix Figure 3 This is a schematic diagram of the structure of this utility model in an embodiment state;

[0021] Appendix Figure 4This is a schematic diagram of the existing technology structure; in the attached diagram:

[0022] 1. Inlet straight pipe; 2. Vacuum port; 3. Pipe cavity; 4. Clamp; 5. Nozzle; 6. Narrowing connector; 7. Exhaust pipe; 8. Pneumatic valve; 9. Variable diameter expansion connector; 10. Noise reduction connector; 11. Y-type tee pipe; 12. Pump discharge port; 13. Discharge pipe; 14. Silencer; 21. Contraction section; 22. Throat; 23. Diffusion section. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "rear," "lower left," "upper right," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] The specific embodiment of this utility model is as follows: the dredging pump exhaust pipe assembly includes a vacuum suction component that intermittently provides negative pressure to the dredging pump; the improvement of this utility model is that the silencer connected to the vacuum suction component is replaced with a secondary pressurization structure component.

[0025] The vacuum suction assembly is connected to the pump discharge port 12 and the discharge pipe 13 through a secondary pressurization structure assembly.

[0026] In a preferred embodiment of this utility model, the vacuum suction assembly includes a cavity 3, with a vacuum port 2 connected to a pump on one side of the cavity 3; perpendicular to the vacuum port 2, an air inlet straight pipe 1 passes through one side of the wall of the cavity 3, and the air inlet straight pipe 1 is connected to a nozzle 5; a constricted connector 6 is provided on the other side of the wall of the cavity 3, and the nozzle 5 and the constricted connector 6 are coaxially arranged without contact; the constricted connector 6 is connected to an exhaust pipe 7, and the exhaust pipe 7 is connected to the secondary pressurization structure assembly.

[0027] As a preferred embodiment of this utility model, the secondary pressurization structure assembly may include: a variable diameter expansion port connector 9, a noise reduction connecting pipe 10, and a Y-type tee pipe 11.

[0028] Specifically, the nozzle 5, the constriction connector 6, the exhaust pipe 7, and the reducing and expanding port connector 9 are coaxially arranged. In this way, the constriction connector, the exhaust pipe, and the reducing and expanding port connector function as a constriction section and a diffuser section. The original nozzle 5 has a constriction section 21 and a diffuser section 23 sequentially connected to the inlet section. The connection point between the constriction section 21 and the diffuser section 23 is the throat 22.

[0029] In this way, the constriction section 21 and the diffuser section 23 of the nozzle 5, together with the constriction connector, the exhaust pipe and the variable diameter expansion connector, play the roles of the constriction section and the diffuser section, thereby achieving the purpose of secondary pressurization and increasing the suction from 6-8 psi to 10-12 psi.

[0030] As a preferred embodiment, one end of the variable diameter expansion joint 9 is detachably connected to the exhaust pipe 7, and the exhaust pipe 7 is connected to the constriction connector 6; the other end of the variable diameter expansion joint 9 is detachably connected to the noise reduction connecting pipe 10; the noise reduction connecting pipe 10 is connected to the pump discharge port 12 and the discharge pipe 13 respectively through the Y-shaped tee pipe 11.

[0031] In this way, the secondary pressurization structure component replaces the conventional silencer, and the gas is effectively released in the noise reduction connecting pipe. With the help of the flowing sludge in the long-distance discharge pipe, the noise generated during the operation of the pneumatic sludge pump is greatly reduced, and the working efficiency is higher.

[0032] As a preferred embodiment, the nozzle 5 is detachably connected to the intake straight pipe 1 via a thread.

[0033] As a preferred embodiment, the cavity 3 and the constricted connector 6 are detachably connected by a sealing gasket and a clamp 4.

[0034] As a preferred embodiment, the exhaust pipe 7 is equipped with a pneumatic valve 8.

[0035] As a preferred embodiment, the flaring cone angle of the variable diameter expansion joint 9 is 20~60 degrees.

[0036] It should be noted that this utility model is an exhaust pipe assembly for a dredging pump. In specific operation,

[0037] 1. High-pressure gas enters the cavity 3 through the inlet straight pipe 1. Since the inlet straight pipe 1 is connected to the nozzle 5, it has a converging section 21 and a diffuser section 23 connected in sequence to the inlet section. The connection between the converging section 21 and the diffuser section 23 is the throat 22. The diffuser section 23 extends into the constriction connector 6, thus forming a Venturi tube structure. The high-pressure gas can use this structure to generate negative pressure in the cavity 3. Using this negative pressure, the pump draws the material into the pump body.

[0038] At this time, since the nozzle 5, the constriction connector 6, the exhaust pipe 7, and the variable diameter expansion connector 9 are coaxially arranged, and the constriction connector 6, the exhaust pipe 7, and the variable diameter expansion connector 9 play the roles of the constriction section and the diffusion section, the purpose of secondary pressurization is achieved. Compared with the muffler, the pump suction can be increased from 6-8psi to 10-12psi.

[0039] The excess high-pressure gas enters the discharge pipe 13 through the noise reduction connecting pipe 10 and the Y-type tee pipe 11. The discharge pipe 13 contains flowing sludge, which greatly reduces the noise generated during the operation of the pneumatic sludge pump and makes the work more efficient.

[0040] 2. During discharge, the pneumatic valve 8 of the exhaust pipe 7 is closed, and the knife valve switches the inlet and outlet of the pump. High-pressure gas enters the pump body through the inlet straight pipe 1 and nozzle 5 via the vacuum port 2. The high pressure forces the material into the discharge pipe 13. Furthermore, since the noise reduction connecting pipe 10 is equipped with a check valve, the backflow of the material is well prevented.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dredging pump exhaust pipe assembly, comprising a vacuum suction component that intermittently provides negative pressure to the dredging pump; characterized in that: It also includes a secondary turbocharging structure component; The vacuum suction assembly is connected to the pump discharge port (12) and discharge pipe (13) through a secondary pressurization structure assembly; The vacuum suction assembly includes a cavity (3), with a vacuum port (2) connected to the pump on one side of the cavity (3); perpendicular to the direction of the vacuum port (2), an air inlet straight pipe (1) is provided on one side of the wall of the cavity (3), the air inlet straight pipe (1) is connected to a nozzle (5), and a constricted connector (6) is provided on the other side of the wall of the cavity (3). The nozzle (5) and the constricted connector (6) are coaxially arranged without contact; the constricted connector (6) is connected to an exhaust pipe (7), and the exhaust pipe (7) is connected to the secondary pressurization structure assembly. The secondary booster structure component includes a variable diameter expansion port connector (9), a noise reduction connecting pipe (10), and a Y-type tee pipe (11). The nozzle (5), the constriction connector (6), the exhaust pipe (7), and the variable diameter expansion port connector (9) are coaxially arranged.

2. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... One end of the variable diameter expansion joint (9) is detachably connected to the exhaust pipe (7), and the exhaust pipe (7) is connected to the constriction connector (6); the other end of the variable diameter expansion joint (9) is detachably connected to the noise reduction connecting pipe (10); the noise reduction connecting pipe (10) is connected to the pump discharge port (12) and the discharge pipe (13) respectively through the Y-type tee pipe (11).

3. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... The nozzle (5) has a constriction section (21) and a diffuser section (23) connected in sequence to the inlet section, and the connection between the constriction section (21) and the diffuser section (23) is the throat (22).

4. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... The nozzle (5) is detachably connected to the intake straight pipe (1) by means of threads.

5. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... The tube (3) and the constricted connector (6) are detachably connected by a sealing gasket and a clamp (4).

6. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... A pneumatic valve (8) is provided on the exhaust pipe (7).

7. The dredging pump exhaust pipe assembly according to claim 1, characterized in that... The flaring cone angle of the variable diameter expansion joint (9) is 20~60 degrees.

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