Emergency skid-mounted pump device

Abstract

The utility model belongs to the technical field of skid-mounted pumps, and particularly discloses an emergency skid-mounted pump device which comprises a pump skid, a motor, a transmission, a coupler and a rotor box are sequentially arranged at the top of the pump skid, a liquid inlet and a liquid outlet are formed in the two sides of the rotor box, the liquid inlet is provided with a liquid inlet pipeline, and the liquid outlet is provided with a liquid outlet pipeline. A flushing assembly is arranged at the top of the rotor box, connected with an external cooling and cleaning fluid pipeline or a liquid storage tank and divided into two paths to extend into a cavity of the rotor box, one path of the flushing assembly is connected into the rotor box through a valve at the top of the rotor box, and the other path of the flushing assembly is connected into a mechanical seal of the rotor box. The speed changer is arranged between the motor and the coupler, different rotating speeds and loads can be selected and matched according to different densities of media, movement and torque are transmitted through the coupler, then the speed of a rotor in the rotor box is adjusted, liquid with different viscosities is extracted, and working efficiency and adaptability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of skid-mounted pumps, and in particular relates to an emergency skid-mounted pump device. Background Art

[0002] When the fluid medium needs to be discharged in chemical, petroleum, mining, industrial and construction scenes or the pump in use fails and needs emergency use, the lack of a movable pump skid will lead to production interruption, energy waste and increased safety risks. In addition, the liquid components at the work site mostly contain hydrocarbon volatile substances, sludge, mechanical impurities and oil, etc., which require a pump skid device with high suction range, large flow, safety and high control automation. Traditional centrifugal pumps need to be injected with liquid before use, and cannot be used immediately. They are inefficient when dealing with some small flow and large pressure head scenes, are restricted, easily produce foam and cause air binding, have a low operating speed and cannot meet rapidly changing working conditions, cannot handle corrosive or high temperature and high pressure, flammable and explosive liquids, and the pressure difference between the suction port and the discharge port is too large and easy to leak. When using a rotor pump, since different rotor speeds and loads need to be determined according to different fluid types (such as fluid viscosity) during the production process, the rotor in the existing technology can only output a single speed and cannot adapt to different working conditions. Utility Model Content

[0003] The utility model aims to overcome the defects in the prior art and provide an emergency skid-mounted pump device.

[0004] The utility model provides an emergency skid-mounted pump device, comprising a pump skid, wherein a motor, a transmission, a coupling and a rotor box are sequentially arranged on the top of the pump skid, wherein the transmission is connected to the motor and is used to adjust the speed and load of the motor, and the coupling is respectively connected to the transmission and the rotor box and is used to connect the driving shaft of the transmission and the driven shaft of the rotor box;

[0005] A liquid inlet and a liquid outlet are provided on both sides of the rotor box, the liquid inlet is provided with a liquid inlet pipe, and the liquid outlet is provided with a liquid outlet pipe;

[0006] A flushing assembly is provided on the top of the rotor box, which is connected to an external cooling and cleaning fluid pipeline or a liquid storage tank and extends into the rotor box cavity in two ways. One way of the flushing assembly is connected to the inside of the rotor box through a valve on the top of the rotor box, and the other way of the flushing assembly is connected to the inside of the rotor box mechanical seal.

[0007] A further solution is that the liquid outlet pipeline is provided with a flow meter, a first pressure gauge, a liquid outlet ball valve and a check valve; the liquid inlet pipeline is provided with a liquid inlet ball valve;

[0008] The flow meter is located near the liquid outlet of the rotor box and is connected to the liquid outlet pipeline through a flange; the first pressure gauge is located on a side of the flow meter away from the liquid outlet of the rotor box and is welded to the liquid outlet pipeline;

[0009] The pump skid is also provided with a control panel, and the control panel is connected with the flow meter and the first pressure gauge.

[0010] A further solution is that the liquid inlet pipe and the liquid outlet pipe are both connected to the pump skid via a fixing member;

[0011] The fixing piece is a hoop structure composed of a pipe clamp and bolts. The pipe clamp is used to fix the pipeline, and the lower end of the bolt extends to the pump skid and is fixedly connected to the pump skid.

[0012] A further solution is that the flushing assembly includes a fluid pipeline and a pressure measuring pipeline, and the fluid pipeline and the pressure measuring pipeline are divided into a rotor cavity cleaning end and a mechanical seal cleaning end after converging;

[0013] The fluid pipeline is provided with a manual valve and a filter;

[0014] The pressure measuring pipeline is provided with a manual valve and a second pressure gauge.

[0015] A further solution is that the sealing structure of the rotor box is a containerized double-end face sealing structure, and the double-end face sealing structure includes a front pressure cover and a rear pressure cover, and a machine seal flushing pipeline and a machine seal drainage pipeline are opened between the front pressure cover and the rear pressure cover, the machine seal cleaning end is connected with the machine seal flushing pipeline, and the machine seal drainage pipeline is connected with the cooling cleaning fluid pipeline or the liquid storage tank through a return pipe for flushing the machine seal; the rotor cleaning chamber is connected with the top valve of the rotor box for flushing the rotor.

[0016] A further solution is that the liquid outlet pipe and the liquid inlet pipe are respectively connected to a safety valve through a safety pipe;

[0017] The safety pipe is connected to the liquid outlet pipe and the liquid inlet pipe respectively through flanges.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model provides a transmission between the motor and the coupling, which can select and match different rotation speeds and loads according to different densities of the medium, transmit motion and torque through the coupling, and then adjust the speed of the rotor in the rotor box to achieve the extraction of liquids with different viscosities, thereby improving work efficiency and adaptability.

[0020] The utility model is provided with a flow meter and a first pressure gauge on the liquid outlet pipeline, and the flow meter and the first pressure gauge are respectively connected to a control panel, and the control panel can monitor the liquid outlet flow and pressure in real time for feedback control and monitoring the operating status of the pump.

[0021] The utility model provides a flushing component on the top of the rotor box, which is connected to an external cooling and cleaning fluid pipeline or a liquid storage tank and is divided into two paths extending into the rotor cavity. One path is connected to the inlet and outlet of the flushing pipeline of the machine seal and the rotor flushing port. When foreign matter enters the machine seal or the temperature is too high, it can be flushed with flushing liquid to play a role of cooling and cleaning, thereby enhancing the service life of the machine seal. One path is connected to enter the rotor chamber, and when the temperature or viscosity of the conveying medium is high, the rotor is flushed, thereby reducing the wear of the rotor and improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are only used to illustrate and explain the present invention, and are not intended to limit the scope of the present invention, wherein:

[0023] Figure 1 : Schematic diagram of the main structure of the utility model;

[0024] Figure 2 : Schematic diagram of the structure of the utility model from top view;

[0025] Figure 3 : A schematic diagram of the structure of the utility model from the left;

[0026] Figure 4 : Schematic diagram of the double end face seal structure of the rotor box of the utility model;

[0027] Figure 5 : Schematic diagram of mechanical seal and rotor flushing;

[0028] In the figure: 1. Motor; 2. Transmission; 3. Coupling; 4. Rotor box; 5. Safety valve; 6. Manual valve; 7. Flow meter; 8. First pressure gauge; 9. Filter; 10. Control panel; 11. Fixings; 12. Flushing assembly; 13. Pump skid; 14. Check valve; 15. Inlet ball valve; 16. Outlet ball valve; 17. Outlet pipeline; 18. Flange; 19. Inlet pipeline; 20. Front gland; 21. Machine seal flushing pipeline; 22. Rear gland; 23. Second pressure gauge; 24. Rotor cavity flushing pipe; 25. Machine seal flushing pipe; 26. Machine seal drainage pipeline; 27. Flushing tank; 28. Return pipe. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution, design method and advantages of the utility model clearer, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] like Figure 1 As shown, the utility model provides an emergency skid-mounted pump device, including a pump skid 13, wherein a motor 1, a transmission 2, a coupling 3 and a rotor box 4 are sequentially arranged on the top of the pump skid 13, wherein the transmission 2 is connected to the motor 1 for adjusting the speed and load of the motor 1, and the coupling 3 is respectively connected to the transmission 2 and the rotor box 4 for connecting the driving shaft of the transmission 2 and the driven shaft of the rotor box 4; wherein the motor 1 is a high-efficiency flameproof three-phase asynchronous motor, and the coupling 3 is used to disassemble, maintain, overhaul or replace all parts except the pump body without disassembling the main motor and the pump inlet and outlet pipelines. The transmission 2 is a manual transmission with synchronous gears, gear sleeves and paddle shifting structures, and the pump adopts an independent external shiftable manual transmission for deceleration. The manual transmission is located in the middle of the skid-mounted pump, and is bolted to the pump skid 13, connected to the motor 1 on the right side and connected to the coupling 3 on the left side, for transmitting torque and driving the rotor. The transmission adopts a three-speed system, which are 180-200 rpm, 280-300 rpm, and 380-400 rpm, corresponding to different medium densities such as water, oil, and thick oil mud. The shifting method is a mechanical shifting with paddles when parking. No clutch device is required. The gear shifting can be completed before the equipment is started to effectively transport different media. A temperature change module is installed on the rotor box 4, which can monitor the temperature of the rotor cavity in real time to prevent the rotor and wear-resistant plate from damaging their service life due to overheating during operation. The bottom is tightly connected to the pump skid 13 by bolts, which plays a role of fixing and stabilizing, and prevents unnecessary damage caused by equipment vibration during operation.

[0031] A liquid inlet and a liquid outlet are provided on both sides of the rotor box 4. The liquid inlet is provided with a liquid inlet pipe 19, and the liquid outlet is provided with a liquid outlet pipe 17. Both the liquid inlet pipe 19 and the liquid outlet pipe 17 are connected to the pump skid 13 through a fixing member 11; the fixing member 11 is a hoop structure composed of a pipe clamp and a bolt, and the pipe clamp is used to fix the pipe. The lower end of the bolt extends to the pump skid 13 and is fixedly connected to the pump skid 13. The liquid outlet pipe 17 and the liquid inlet pipe 19 are respectively connected to the safety valve 5 through a safety pipe; the safety pipe is respectively connected to the liquid outlet pipe 17 and the liquid inlet pipe 19 through a flange 18. A flushing assembly 12 is provided on the top of the rotor box 4, which is connected to the external flushing tank 27 and extends into the cavity of the rotor box 4 in two ways. One way of the flushing assembly 12 is connected to the inside of the rotor box 4 through the valve on the top of the rotor box 4, and the other way of the flushing assembly 12 is connected to the inside of the mechanical seal of the rotor box 4.

[0032] In this embodiment, a flow meter 7, a first pressure gauge 8, a liquid outlet ball valve 16 and a check valve 14 are provided on the liquid outlet pipeline 17; a liquid inlet ball valve 15 is provided on the liquid inlet pipeline 19; wherein the flow meter 7 is located near the liquid outlet of the rotor box 4, and is connected to the liquid outlet pipeline 17 through a flange 18; the first pressure gauge 8 is located on the side of the flow meter 7 away from the liquid outlet of the rotor box 4, and is welded to the liquid outlet pipeline 17; a control panel 10 is also provided on the pump skid 13, and the control panel 10 is connected to the flow meter 7 and the first pressure gauge 8. The control panel can monitor the liquid outlet flow and pressure in real time, and is used for feedback control and monitoring the operating status of the pump.

[0033] like Figure 4 and Figure 5 As shown, the flushing assembly 12 includes a fluid pipeline and a pressure measuring pipeline, which are divided into a rotor cavity cleaning end and a mechanical seal cleaning end after confluence; a manual valve 6 and a filter 9 are arranged on the fluid pipeline; and a manual valve 6 and a second pressure gauge 23 are arranged on the pressure measuring pipeline. The sealing structure of the rotor box 4 is a container-type double-end face sealing structure, which includes a front gland 20 and a rear gland 22. A mechanical seal flushing pipeline 21 and a mechanical seal drainage pipeline 26 are provided between the front gland 20 and the rear gland 22. The mechanical seal cleaning end is connected with the mechanical seal flushing pipeline 21, and the mechanical seal drainage pipeline 26 is connected with the flushing tank 27 through a return pipe 28. When foreign matter enters the mechanical seal or the temperature is too high, flushing liquid can be used to cool and clean the mechanical seal, thereby enhancing the service life of the mechanical seal; the rotor cleaning chamber is connected with the top valve of the rotor box 4. After the rotor chamber is cleaned, the cleaning liquid is discharged from the liquid outlet of the rotor box 4 together with the fluid medium to be discharged. When the temperature or viscosity of the conveying medium is high, the rotor is flushed to reduce the wear of the rotor and increase its service life.

[0034] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An emergency skid-mounted pump device, characterized in that: The pump skid (13) comprises a motor (1), a transmission (2), a coupling (3) and a rotor box (4) which are sequentially arranged on the top of the pump skid (13); the transmission (2) is connected to the motor (1) and is used to adjust the speed and load of the motor (1); the coupling (3) is respectively connected to the transmission (2) and the rotor box (4) and is used to connect the driving shaft of the transmission (2) and the driven shaft of the rotor box (4); A liquid inlet and a liquid outlet are provided on both sides of the rotor box (4); the liquid inlet is provided with a liquid inlet pipeline (19), and the liquid outlet is provided with a liquid outlet pipeline (17); A flushing assembly (12) is provided on the top of the rotor box (4), which is connected to an external cooling cleaning fluid pipeline or a liquid storage tank and extends into the cavity of the rotor box (4) in two ways. One way of the flushing assembly (12) is connected to the inside of the rotor box (4) through a valve on the top of the rotor box (4), and the other way of the flushing assembly (12) is connected to the inside of the mechanical seal of the rotor box (4).

2. The emergency skid-mounted pump device according to claim 1, characterized in that: The liquid outlet pipeline (17) is provided with a flow meter (7), a first pressure gauge (8), a liquid outlet ball valve (16) and a check valve (14); the liquid inlet pipeline (19) is provided with a liquid inlet ball valve (15); The flow meter (7) is located near the liquid outlet of the rotor box (4) and is connected to the liquid outlet pipe (17) via a flange (18); the first pressure gauge (8) is located on a side of the flow meter (7) away from the liquid outlet of the rotor box (4) and is welded to the liquid outlet pipe (17); The pump skid (13) is also provided with a control panel (10), and the control panel (10) is connected to the flow meter (7) and the first pressure gauge (8).

3. The emergency skid-mounted pump device according to claim 1, characterized in that: The liquid inlet pipe (19) and the liquid outlet pipe (17) are both connected to the pump skid (13) via a fixing member (11); The fixing member (11) is a hoop structure composed of a pipe clamp and bolts. The pipe clamp is used to fix the pipeline. The lower end of the bolt extends to the pump skid (13) and is fixedly connected to the pump skid (13).

4. The emergency skid-mounted pump device according to claim 1, characterized in that: The flushing assembly (12) comprises a fluid pipeline and a pressure measuring pipeline, and the fluid pipeline and the pressure measuring pipeline are divided into a rotor cavity cleaning end and a mechanical seal cleaning end after converging; The fluid pipeline is provided with a manual valve (6) and a filter (9); The pressure measuring pipeline is provided with a manual valve (6) and a second pressure gauge (23).

5. The emergency skid-mounted pump device according to claim 4, characterized in that: The sealing structure of the rotor box (4) is a container-type double-end face sealing structure, and the double-end face sealing structure includes a front pressure cover (20) and a rear pressure cover (22). A machine seal flushing pipeline (21) and a machine seal drainage pipeline (26) are provided between the front pressure cover (20) and the rear pressure cover (22). The machine seal cleaning end is connected to the machine seal flushing pipeline (21), and the machine seal drainage pipeline (26) is connected to the cooling cleaning fluid pipeline or the liquid storage tank through a return pipe (28) for flushing the machine seal; the rotor cleaning chamber is connected to the top valve of the rotor box (4) for flushing the rotor.

6. The emergency skid-mounted pump device according to claim 1, characterized in that: The liquid outlet pipe (17) and the liquid inlet pipe (19) are respectively connected to a safety valve (5) via a safety pipe; The safety pipe is respectively connected to the liquid outlet pipe (17) and the liquid inlet pipe (19) via flanges (18).

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