Large-flow high-temperature special double-screw pump

Abstract

The high-flow high-temperature special double-screw pump comprises a mounting base, a mounting shell is fixedly connected to the top of the mounting base, a mounting cavity is formed in the mounting shell, a feeding port and a discharging port are formed in the mounting shell, and the feeding port and the discharging port are communicated with each other. A first connecting block and a second connecting block are arranged at the feeding port and the discharging port correspondingly, and a filtering mechanism is arranged at the position, close to the feeding port, of the mounting cavity. Through cooperative use of the fixed block, the mounting frame and the filter screen, filtering is carried out at the feed port, a medium entering the mounting cavity is filtered, the situation that a filter needs to be additionally arranged when the device is used is avoided, the mounting operation process is reduced, the mounting procedure is simplified, mounting and using are convenient, meanwhile, the filter screen is convenient to disassemble and clean, and the cost is reduced. And through arrangement of a heating device and a heat conducting piece, the temperature in the mounting cavity is increased, and heat preservation or preheating can be conveniently conducted on a medium entering the mounting cavity when the device is used.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw pump equipment, and in particular to a special twin-screw pump with large flow rate and high temperature. Background Technology

[0002] A twin-screw pump consists of a sealed chamber with a constant volume formed between a screw sleeve meshing on the main and driven shafts and the pump body or bushing. The medium is delivered separately to the middle of the pump body as the screw shafts rotate, and the two are combined and finally delivered to the pump outlet, thus achieving the purpose of pumping.

[0003] Twin-screw pumps have a wide range of applications, such as in oil fields where they are used as multiphase pumps for transporting oil, gas, water, and trace amounts of fine solid particles, as well as crude oil pumps. In shipbuilding, they are used as marine loading pumps, hull cleaning and sewage treatment pumps, main engine lubrication pumps, and fuel oil pumps. However, when using existing twin-screw pumps, the media they transport generally contain large solid impurities, and since twin-screw pumps themselves do not have a filtration structure, they need to be used with an external filter during installation. This requires installing a filter device on the pump body first, which increases the installation process, making it more complicated and affecting its use. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing twin-screw pumps are not convenient for filtering impurities in the medium independently, and to propose a high-flow-rate, high-temperature specially designed twin-screw pump.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-flow, high-temperature specially designed twin-screw pump includes a mounting base, a mounting housing fixedly connected to the top of the mounting base, a mounting cavity inside the mounting housing, an inlet and an outlet respectively provided on the mounting housing, a first connecting block and a second connecting block respectively provided at the inlet and outlet, a filter mechanism provided near the inlet in the mounting cavity, two symmetrically arranged screws rotatably connected to the inner side wall of the mounting cavity, and a heating mechanism provided inside the mounting cavity.

[0007] Preferably, the filtration mechanism includes a fixing groove formed on the top of the mounting housing, a fixing block inserted in the fixing groove, the fixing block being fixedly connected to the mounting housing by bolts, and a first sealing rubber gasket being fixedly sleeved on the outer side wall of the fixing block, the first sealing rubber gasket being in tight contact with the inner side wall of the fixing groove.

[0008] Preferably, a mounting frame is fixedly connected to the bottom of the fixing block, the bottom of the mounting frame passes through the fixing groove and extends downward to contact the bottom of the mounting cavity, and a filter screen is fixedly connected to the inner side wall of the mounting frame.

[0009] Preferably, a motor and a gearbox are fixedly connected to the top of the mounting base, the output shaft of the motor is fixedly connected to the input end of the gearbox, the output end of the gearbox is fixedly connected to a first rotating rod, a fixed cavity is opened inside the mounting housing, and a second rotating rod is rotatably connected to the inner side wall of the fixed cavity.

[0010] Preferably, the outer wall of the first rotating rod and the second rotating rod away from the gearbox both penetrate the fixed cavity and are fixedly connected to the outer walls of the corresponding two screws, and gears are fixedly sleeved on the outer walls of the first rotating rod and the second rotating rod, and the two gears are arranged in the fixed cavity and meshed.

[0011] Preferably, the heating mechanism includes a mounting groove formed on the top of the mounting base, a heating device is fixedly connected to the inner side wall of the mounting groove, the heating device is connected to a heat-conducting plate, and a fixing groove adapted to the heat-conducting plate is formed on the inner side wall of the mounting cavity, and the heat-conducting plate is disposed in the fixing groove.

[0012] The beneficial effects of this utility model are as follows:

[0013] By using a combination of fixing blocks, mounting frames, and filter screens, filtration is performed at the inlet to filter the medium entering the mounting cavity. This avoids the need for additional filters during use, reduces installation procedures, simplifies the installation process, and facilitates installation and use. At the same time, the filter screen is easy to disassemble and clean, making maintenance convenient. Furthermore, the combination of heating devices and heat-conducting plates increases the temperature inside the mounting cavity, allowing the medium entering the mounting cavity to be kept warm or preheated during use, making it convenient to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-flow-rate, high-temperature specially designed twin-screw pump proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the first rotating rod and the second rotating rod in a specially designed high-flow-rate, high-temperature twin-screw pump proposed in this utility model.

[0016] In the diagram: 1. Mounting base; 2. Mounting housing; 3. First connecting block; 4. Second connecting block; 5. Screw; 6. Motor; 7. Gearbox; 8. First rotating rod; 9. Second rotating rod; 10. Gear; 11. Heat-conducting plate; 12. Heating device; 13. Fixing block; 14. Mounting frame; 15. Filter screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-2 A high-flow, high-temperature specially designed twin-screw pump includes a mounting base 1, a mounting housing 2 fixedly connected to the top of the mounting base 1, an mounting cavity inside the mounting housing 2, an inlet and an outlet respectively opened on the mounting housing 2, a first connecting block 3 and a second connecting block 4 respectively provided at the inlet and outlet, the inlet pipe and the outlet pipe are installed and fixed by the first connecting block 3 and the second connecting block 4 respectively, and a filter mechanism is provided near the inlet in the mounting cavity.

[0019] The filter mechanism includes a fixing groove on the top of the mounting housing 2, a fixing block 13 is inserted in the fixing groove, the fixing block 13 is fixedly connected to the mounting housing 2 by bolts, and a first sealing rubber gasket is fixedly sleeved on the outer wall of the fixing block 13. The first sealing rubber gasket is in tight contact with the inner side wall of the fixing groove to improve the sealing of the mounting cavity and prevent leakage.

[0020] The bottom of the fixing block 13 is fixedly connected to the mounting frame 14. The bottom of the mounting frame 14 passes through the fixing groove and extends downward to contact the bottom of the mounting cavity. The inner side wall of the mounting frame 14 is fixedly connected to the filter screen 15.

[0021] Two symmetrically arranged screws 5 are rotatably connected to the inner side wall of the mounting cavity. A motor 6 and a gearbox 7 are fixedly connected to the top of the mounting base 1. The gearbox 7 is equipped with a speed-changing gear set (not shown). By increasing the speed of the screws 5, the flow rate of the device is increased. The motor 6 and the speed-changing gear set are existing technologies and will not be described in detail here. The output shaft of the motor 6 is fixedly connected to the input end of the gearbox 7. The output end of the gearbox 7 is fixedly connected to the first rotating rod 8. A fixed cavity is opened inside the mounting housing 2. A second rotating rod 9 is rotatably connected to the inner side wall of the fixed cavity.

[0022] The outer walls of the first rotating rod 8 and the second rotating rod 9, which are away from the gearbox 7, both penetrate the fixed cavity and are fixedly connected to the outer walls of the corresponding two screws 5. Gears 10 are fixedly sleeved on the outer walls of the first rotating rod 8 and the second rotating rod 9. The two gears 10 are set in the fixed cavity and meshed.

[0023] The mounting cavity is equipped with a heating mechanism, which includes a mounting groove on the top of the mounting base 1. A heating device 12 is fixedly connected to the inner side wall of the mounting groove. The heating device 12 is existing technology and will not be described in detail here. The heating device 12 is connected to a heat-conducting plate 11. A fixing groove adapted to the heat-conducting plate 11 is opened on the inner side wall of the mounting cavity. The heat-conducting plate 11 is set in the fixing groove. The inner surface of the heat-conducting plate 11 is roughened to increase the contact area with the medium and improve the heating effect.

[0024] In this invention, during use, the medium enters the installation cavity through the feed inlet and is filtered by the filter screen 15. The motor 6 drives the first rotating rod 8 and the second rotating rod 9 to rotate through the gear 10, causing the two screws 5 to move the medium to the discharge port for conveying. The heating device 12 heats the heat-conducting plate 11, raising the temperature inside the installation cavity to preheat or keep the medium warm. After a period of use, the fixing block 13 can be removed from the fixing groove by disassembling the bolts, making it easy to clean and maintain the filter screen 15 and prevent the filter screen 15 from becoming clogged, thus affecting its use.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-flow-rate, high-temperature specially designed twin-screw pump, comprising a mounting base (1), characterized in that, The mounting base (1) is fixedly connected to the top of the mounting shell (2). The mounting shell (2) has an installation cavity inside. The mounting shell (2) has an inlet and an outlet. The inlet and outlet are respectively provided with a first connecting block (3) and a second connecting block (4). The installation cavity is provided with a filter mechanism near the inlet. The inner side wall of the installation cavity is rotatably connected with two symmetrically arranged screws (5). The installation cavity is provided with a heating mechanism.

2. The high-flow-rate, high-temperature specially designed twin-screw pump according to claim 1, characterized in that, The filter mechanism includes a fixing groove on the top of the mounting housing (2), a fixing block (13) is inserted in the fixing groove, the fixing block (13) is fixedly connected to the mounting housing (2) by bolts, and a first sealing rubber gasket is fixedly sleeved on the outer side wall of the fixing block (13), the first sealing rubber gasket is in tight contact with the inner side wall of the fixing groove.

3. A high-flow-rate, high-temperature specially designed twin-screw pump according to claim 2, characterized in that, The bottom of the fixing block (13) is fixedly connected to the mounting frame (14), the bottom of the mounting frame (14) passes through the fixing groove and extends downward to contact the bottom of the mounting cavity, and the inner side wall of the mounting frame (14) is fixedly connected to the filter screen (15).

4. The high-flow-rate, high-temperature specially designed twin-screw pump according to claim 1, characterized in that, The top of the mounting base (1) is fixedly connected to a motor (6) and a gearbox (7). The output shaft of the motor (6) is fixedly connected to the input end of the gearbox (7). The output end of the gearbox (7) is fixedly connected to a first rotating rod (8). The mounting housing (2) has a fixed cavity inside. The inner side wall of the fixed cavity is rotatably connected to a second rotating rod (9).

5. A high-flow-rate, high-temperature specially designed twin-screw pump according to claim 4, characterized in that, The outer side walls of the first rotating rod (8) and the second rotating rod (9) away from the gearbox (7) both penetrate the fixed cavity and are fixedly connected to the outer side walls of the corresponding two screws (5). The outer side walls of the first rotating rod (8) and the second rotating rod (9) are both fixedly sleeved with gears (10). The two gears (10) are set in the fixed cavity and meshed.

6. A high-flow-rate, high-temperature specially designed twin-screw pump according to claim 1, characterized in that, The heating mechanism includes a mounting groove on the top of the mounting base (1), a heating device (12) is fixedly connected to the inner side wall of the mounting groove, the heating device (12) is connected to a heat-conducting plate (11), and a fixing groove adapted to the heat-conducting plate (11) is opened on the inner side wall of the mounting cavity, and the heat-conducting plate (11) is arranged in the fixing groove.

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