Spraying device suitable for five-cylinder slurry pump

Abstract

The utility model relates to a spraying device suitable for a five-cylinder slurry pump. The five-cylinder slurry pump comprises a base assembly, a rack assembly, a crankshaft assembly and a fluid end, and the fluid end is located above the base assembly and installed on the side face of the rack assembly. The transmission device and the crankshaft assembly are installed in the machine frame assembly, the machine frame assembly is provided with a transmission machine box corresponding to the transmission device, the transmission device, the cylinder sleeve and the piston are all located in a transmission machine box, a water tank is arranged in the base assembly below the transmission machine box, a cleaning manifold is arranged in the transmission machine box, and a connecting pipe and a water pump are connected between the water tank and the cleaning manifold. The cleaning manifold is respectively provided with a spraying pipe corresponding to each group of pistons and cylinder sleeves; the water pump is arranged in the water tank; and a spraying discharge opening is formed in the bottom of the transmission case. The water tank is integrally arranged in the base assembly, when the station of the five-cylinder pump changes, a spraying system where the water tank is located and the five-cylinder pump can be transferred together, field use is facilitated, and disassembly is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mud pump, concretely relates to a spraying device suitable for five -cylinder mud pump. BACKGROUND

[0002] In the oil drilling industry, the main role of the mud pump is to make the drilling flushing fluid form a cycle inside and outside the wellbore, and then realize the purpose of drilling flushing. The five-cylinder pump increases two piston cylinders on the basis of the three-cylinder pump. Compared with the traditional three-cylinder pump, the displacement and pump pressure are obviously improved. The pump pressure can reach 51.7MPa, and the maximum displacement can reach 97.6L / S. The displacement can cover the displacement of the traditional two three-cylinder pumps.

[0003] In structure, the main structural components of the five-cylinder pump include the rack assembly, the motor assembly, the crankshaft assembly, the crosshead assembly, the base assembly, the fluid end, etc. The motor assembly drives the crankshaft assembly to rotate, and then the crankshaft assembly drives the piston structure of the fluid end to move relative to the cylinder sleeve through the transmission structure, thereby realizing the transmission of mud and clean water.

[0004] In the process of piston movement, a large amount of heat is generated between the piston and the cylinder sleeve due to repeated piston movement. Long-term operation in a high-temperature state can easily cause damage to the equipment. Therefore, the positions of the piston and the cylinder sleeve need to be cooled. The existing cooling method is generally water spraying cooling. The existing technology, such as the patent document with the announcement number CN220469843U, discloses a mud pump spraying device. A spraying system is formed by a water tank, a spraying pump, a hose, and a nozzle. The water in the water tank is sprayed from the nozzle to the positions of the cylinder sleeve and the piston, realizing the purposes of flushing and cooling.

[0005] The existing mud pump spraying device is generally arranged outside the mud pump, occupying additional space. In addition, the mud pump spraying device needs to be disassembled before moving to another work position, which is not convenient to operate and use. UTILITY MODEL CONTENT

[0006] In order to solve the problem of inconvenient use of the existing mud pump spraying device, the utility model provides a spraying device suitable for a five-cylinder mud pump. The water tank of the spraying device is integrated in the base assembly, eliminating the need for a separate spraying device. When moving, the five-cylinder pump can be moved as a whole, which is convenient to use.

[0007] The technical purpose of the utility model is achieved through the following technical solutions:

[0008] The utility model provides a kind of spraying device suitable for five-cylinder slurry pump, five-cylinder slurry pump includes base assembly, rack assembly, crankshaft assembly, fluid end, fluid end includes five pistons, five cylinder liners;Transmission device is connected between crankshaft assembly and piston, piston is driven by transmission device to make piston movement relative to cylinder liner by crankshaft assembly;Fluid end is located above base assembly and is installed in the side of rack assembly;Transmission device and crankshaft assembly are installed in rack assembly, rack assembly is provided with transmission machine box corresponding transmission device, transmission device, cylinder liner and piston are all located in transmission machine box, water tank is provided in base assembly below transmission machine box, cleaning manifold is provided in transmission machine box, connecting pipe and water pump are connected between water tank and cleaning manifold, cleaning manifold is provided with one spray pipe corresponding each group of piston and cylinder liner;Water pump is arranged in water tank;Spray discharge port is provided at the bottom of transmission machine box.

[0009] Further, the water tank is provided with a water injection pipe on the side of the rack assembly, the water injection pipe is a pipe joint bent upward by 90 degrees, and a flange end is arranged at the pipe joint.

[0010] Further, the water tank is further provided with a flushing discharge port for water tank cleaning and drainage at a position close to the bottom of the water tank on the side of the rack assembly, and a plug is arranged at the flushing discharge port in threaded cooperation with the flushing discharge port.

[0011] Further, a maintenance opening is further arranged above the transmission machine box, and a grating cover is arranged at the maintenance opening and hingedly installed above the maintenance machine box.

[0012] Further, a spray liquid return port is arranged above the water tank corresponding to the spray discharge port at the bottom of the transmission machine box.

[0013] Further, a liquid collecting groove is arranged at the upper end of the water tank, and the spray liquid return port is arranged at the groove bottom of the liquid collecting groove.

[0014] Further, a filter layer is laid in the liquid collecting groove, and the filter layer covers the spray liquid return port.

[0015] Further, lifting round pipes are arranged at two ends of the base assembly respectively, and the two ends of the lifting round pipes extend from the side surfaces opposite to the base and are provided with limiting plates at the two ends of the lifting round pipes respectively.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1、The utility model integrates the water tank in the base assembly, when the working position of the five-cylinder pump changes, the water tank and the spraying system can be transferred together with the five-cylinder pump, which is convenient for on-site use and does not need to be disassembled.

[0018] 2. Through the setting of the liquid collecting groove, the spraying liquid is recycled and reused by cooperating with the spraying liquid return port, water resource waste is reduced, the needs of cleaning the drilling in some areas with relatively insufficient water resources are met, and the open arrangement of the filter layer facilitates the cleaning of the solid intercepted on the filter layer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the installation schematic view of the spraying device suitable for the five-cylinder mud pump on the other side of the five-cylinder mud pump in the utility model.

[0020] Figure 2 is the installation schematic view of the spraying device suitable for the five-cylinder mud pump on the other side of the five-cylinder mud pump in the utility model.

[0021] Figure 3 is the schematic view of the fluid end structure in the utility model.

[0022] Figure 4 is the schematic view of the cleaning manifold connecting the spraying pipe in the utility model.

[0023] In the drawings:

[0024] 1. piston; 2. cylinder sleeve; 3. suction valve box; 4. discharge valve box; 5. suction pipeline; 6. discharge pipeline; 7. one-way valve; 8. base assembly; 9. rack assembly; 10. crankshaft assembly; 11. transmission machine box; 12. water tank; 13. cleaning manifold; 14. connecting pipe; 15. water injection pipe; 16. plug; 17. grille cover; 18. spraying liquid return port; 19. I-beam; 20. hoisting round pipe; 21. limiting plate; 22. spraying pipe. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be further described in combination with the specific implementation manner as follows:

[0026] A spraying device suitable for a five-cylinder mud pump, as shown in Figure 1 and Figure 2 , the five-cylinder mud pump comprises a base assembly 8, a rack assembly 9, a crankshaft assembly 10, and a fluid end;

[0027] The specific structure of the fluid end belongs to the conventional technology, and the prior art such as the patent document CN218624616U discloses the structure of the mud fluid end. As Figure 3As shown, the hydraulic end includes five pistons 1, five cylinder sleeves 2, and in addition, five suction valve boxes 3, five discharge valve boxes 4, one piston, one cylinder sleeve, one suction valve box and one discharge valve box as a group of suction structures, the five suction valve boxes 3 are connected side by side on the same suction pipeline 5, the five discharge valve boxes 4 are connected side by side on the same discharge pipeline 6, and the suction valve boxes 3 and the discharge valve boxes 4 are one-to-one corresponding; the cylinder sleeve 2 is connected at a position between the suction valve box 3 and the discharge valve box 4, the suction valve box 3 and the discharge valve box 4 are respectively configured with a one-way valve 7, when the piston moves outward relative to the cylinder sleeve, the one-way valve 7 of the suction valve box 3 is opened and the one-way valve 7 of the discharge valve box 4 is closed, and the mud and clean water are sucked into the suction pipeline 5; conversely, when the piston 1 moves inward relative to the cylinder sleeve 2, the one-way valve 7 of the suction valve box 3 is closed and the one-way valve 7 of the discharge valve box 4 is opened, and the sucked mud and clean water enter the discharge pipeline 6.

[0028] The transmission device is connected between the crankshaft assembly 10 and the piston, the crankshaft assembly 10 inputs power through an external motor or an engine, the piston 1 is driven to move relative to the cylinder sleeve 2 to do piston movement by the transmission device, and the specific transmission device includes a crank connecting rod and a crosshead assembly; the hydraulic end is located above the base assembly 8 and is installed on the side of the rack assembly 9; the transmission device and the crankshaft assembly 10 are installed in the rack assembly 9, and the rack assembly 9 is provided with a transmission machine box 11 corresponding to the transmission device, and the transmission device, the cylinder sleeve and the piston are all located in the transmission machine box 11. Figure 3 and Figure 4 As shown, the spray pipe 22 extends to a position close to the cylinder sleeve 2, water is sprayed into the cylinder sleeve 2 through the spray pipe 22, and the spray pipe 22 plays a role of cooling and flushing, and the sprayed water flows out of the cylinder sleeve; the water pump is arranged in the inside of the water tank 12; the bottom of the transmission machine box 11 is provided with a spray discharge port. In order to avoid that the spray liquid pollutes the power end where the crankshaft is located, a water blocking structure can also be arranged at the position of the transmission machine box to avoid that the spray liquid, that is, the clean water, flows to the power end.

[0029] The water tank 12 is provided with a water filling pipe 15 on the side of the rack assembly 9, in order to facilitate water filling, the water filling pipe 15 is a pipe joint interface bent upward by 90 degrees, a flange end is arranged at the pipe joint interface, the tap water pipe can be connected to the water filling pipe, and a container such as a water bucket can also be used to add water into the water filling pipe.

[0030] The spray can be kept open all the time or be manually opened according to the need, after the spray is started, the water pump draws the water as the spray liquid from the water tank 12 and sends it to the cleaning manifold 13, and then the cleaning manifold 13 distributes the spray liquid to the corresponding cylinder sleeve and piston position; the spray liquid falls to the bottom of the transmission case 11 and is discharged through the spray discharge port.

[0031] As preferred, the water tank 12 is further provided with a flushing discharge port for the water tank cleaning and drainage at the position of the bottom of the water tank 12 close to the side of the frame assembly 9, the flushing discharge port is provided with a plug 16 screwed with the flushing discharge port, and the water tank 12 is filled with water for flushing, the flushing discharge port is opened to clean the inside of the water tank 12 by the water flow and discharge the water through the flushing discharge port.

[0032] As preferred, the transmission case 11 is further provided with an access hole, and a grating cover 17 is arranged at the access hole and hingedly installed above the transmission case 11.

[0033] As preferred, in order to realize the recycling of water resources, the water tank 12 is provided with a spray liquid return port 18 corresponding to the spray discharge port of the bottom of the transmission case 11, the spray liquid return port 18 and the spray discharge port can be connected by a pipeline, and a liquid collecting groove can also be arranged at the upper end of the water tank 12, the liquid collecting groove is concave downward at the upper end of the water tank, the spray liquid return port 18 is arranged at the groove bottom of the liquid collecting groove, and the spray liquid directly falls into the liquid collecting groove and is recycled through the spray liquid return port 18. A filter layer such as a filter screen or artificial sponge can also be laid in the liquid collecting groove, the filter layer covers the spray liquid return port 18, and the spray liquid is filtered through the filter layer and then recycled.

[0034] In the embodiment, the base assembly includes two I-beam 19, a plurality of transverse steel beams are connected between the I-beams to form a frame structure, and a steel plate is welded between the I-beams 19 to form a tank body structure of the water tank, the water tank can also be provided with an access hole to facilitate the maintenance of the water pump, and lifting round pipes 20 are arranged at both ends of the base assembly, the lifting round pipes 20 penetrate through the two I-beams 19 and extend out, and limiting plates 21 are arranged at both ends of the lifting round pipes 20, the steel wire sleeve is sleeved on the lifting round pipes 20 when the five-cylinder pump is hoisted, and the limiting plates 21 can prevent the steel wire sleeve from falling off.

[0035] The embodiment is only a further explanation of the utility model and is not a limitation of the utility model, and those skilled in the art can make non-creative modifications to the embodiment according to the need after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A spraying device suitable for a five-cylinder mud pump, the five-cylinder mud pump comprising a base assembly, a frame assembly, a crankshaft assembly, and a hydraulic end, characterized in that, The hydraulic end includes five pistons and five cylinder liners; a transmission device connects the crankshaft assembly and the pistons, and the crankshaft assembly drives the pistons to move relative to the cylinder liners through the transmission device; the hydraulic end is located above the base assembly and mounted on the side of the frame assembly; the transmission device and the crankshaft assembly are mounted inside the frame assembly, and the frame assembly is provided with a transmission housing corresponding to the transmission device. The transmission device, cylinder liners, and pistons are all located inside the transmission housing. A water tank is provided inside the base assembly below the transmission housing, and a cleaning manifold is provided inside the transmission housing. A connecting pipe and a water pump connect the water tank and the cleaning manifold. A spray pipe is provided for each set of pistons and cylinder liners in the cleaning manifold; the water pump is located inside the water tank; a spray outlet is provided at the bottom of the transmission housing.

2. A spraying device suitable for a five-cylinder mud pump according to claim 1, characterized in that, The water tank has a water inlet pipe on the side of the frame assembly. The water inlet pipe has a pipe interface that bends upward at 90 degrees and has a flange end at the pipe interface.

3. A spraying device suitable for a five-cylinder mud pump according to claim 2, characterized in that, The water tank is also provided with a flushing outlet for water tank cleaning and drainage on the side of the frame assembly near the bottom of the water tank, and a plug that is threaded to the flushing outlet is provided at the flushing outlet.

4. A spraying device suitable for a five-cylinder mud pump according to claim 1, characterized in that, An inspection port is also provided above the transmission housing, and a grille cover is provided at the inspection port. The grille cover is hinged to the top of the inspection housing.

5. A spraying device suitable for a five-cylinder mud pump according to claim 4, characterized in that, A spray liquid return port is provided above the water tank, corresponding to the spray discharge port at the bottom of the transmission housing.

6. A spraying device suitable for a five-cylinder mud pump according to claim 5, characterized in that, The water tank is provided with a liquid collection tank at the top, and the spray liquid return port is located at the bottom of the liquid collection tank.

7. A spraying device suitable for a five-cylinder mud pump according to claim 6, characterized in that, The collection tank is lined with a filter layer, which covers the spray liquid return port.

8. A spraying device suitable for a five-cylinder mud pump according to claim 1, characterized in that, The base assembly has a lifting tube at each end, and the two ends of the lifting tube extend out from the side of the base and a limiting plate is provided at each end of the lifting tube.

Images