Chemical drilling fluid temporary storage device

Abstract

The utility model relates to the field of drilling fluid production equipment, in particular to a chemical drilling fluid temporary storage device which comprises a tank body, a driving shaft arranged in the tank body, a driving mechanism arranged at the upper end of the tank body and connected with the driving shaft, a plurality of stirring blades arranged on the driving shaft from top to bottom, and a plurality of supporting legs arranged on the side face of the tank body. A plurality of blades are evenly arranged outside the box body, the box body penetrates through the driving shaft, an inflation cavity is formed in the box body, a circular truncated cone block is arranged on the driving shaft, a plurality of limiting strips are evenly arranged on the side face of the circular truncated cone block, a plurality of grooves are formed in the box body, and a plurality of positioning strips are arranged on the side walls of the grooves. The stirring device has the advantages that the stirring blades are prevented from idling, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the field of drilling fluid production equipment, in particular to a chemical drilling fluid temporary storage device. Background Art

[0002] Chemical drilling fluid plays an important role in drilling operations. During the drilling process, it plays the roles of suspension, pressure control, rock formation stability, buoyancy, lubrication and cooling. The production process of drilling fluid includes raw material processing, batching, mixing, storage and filling. Before filling, the chemical drilling fluid needs to be temporarily stored in a storage tank. In order to avoid sedimentation of the drilling fluid in the storage tank during storage, a stirring mechanism needs to be set for the drilling fluid inside the storage tank to keep the drilling fluid flowing. The existing stirring mechanism includes multiple groups of stirring blades from top to bottom. No matter how much drilling fluid is left in the storage tank, all the stirring blades need to rotate. When the drilling fluid in the storage tank is less, the stirring blades of the liquid level are idling, resulting in energy waste. Therefore, it is particularly necessary to develop a chemical drilling fluid temporary storage device that avoids idling of the stirring blades and saves energy. Summary of the invention

[0003] The utility model aims to provide a temporary storage device for chemical drilling fluid, which has the advantages of avoiding idling of stirring blades and saving energy.

[0004] The technical solutions adopted are as follows:

[0005] A temporary storage device for chemical drilling fluid comprises a tank body, a driving shaft is arranged in the tank body, a driving mechanism connected to the driving shaft is arranged at the upper end of the tank body, a plurality of stirring blades are arranged from top to bottom on the driving shaft, a plurality of legs are arranged on the side of the tank body, the stirring blades comprise a box body, a plurality of blades are evenly arranged on the outside of the box body, the box body passes through the driving shaft, an inflation cavity is arranged inside the box body, a truncated cone block is arranged on the driving shaft, a plurality of limit strips are evenly arranged on the side of the truncated cone block, a plurality of grooves are arranged inside the box body, and a plurality of positioning strips are arranged on the side walls of the grooves.

[0006] Preferably, both upper and lower ends of the box body are connected to the drive shaft in a sliding and sealing manner.

[0007] Preferably, a bottom plate is provided at the lower end of the tank body, a circular track is provided on the bottom plate, the legs are inserted in the circular track, the legs are rotatably connected to two spring telescopic mechanisms, and the spring telescopic mechanisms are rotatably connected to the inside of the circular track.

[0008] Preferably, a plurality of balls are arranged on the side of the supporting leg, and a slide rail cooperating with the balls is arranged on the inner wall of the annular track.

[0009] Preferably, the supporting legs are provided with limited position steel cables connected to the base plate.

[0010] Preferably, the lower end of the driving shaft is provided with an arc-shaped beam, and the lower end surface of the arc-shaped beam is provided with a brush.

[0011] Compared with the prior art, the beneficial effects are:

[0012] In the utility model, when the drilling fluid submerges the stirring blades, the air-filled cavity inside the box body makes the box body float, so that the positioning strip and the limiting strip cross each other, so that the rotation of the driving shaft is transmitted to the box body through the contact between the positioning strip and the limiting strip, and the drilling fluid inside the storage tank is stirred by the blades. When the box body is located above the liquid surface, the positioning strip and the limiting strip are staggered under the action of gravity, so that the box body does not rotate with the driving shaft, thereby reducing the burden on the driving mechanism and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of a chemical drilling fluid temporary storage device of the utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of a temporary storage device for chemical drilling fluids of the utility model.

[0015] Figure 3 yes Figure 2 The structural diagram at A in the middle,

[0016] Figure 4 This is a schematic diagram of the structure of the blades of a chemical drilling fluid temporary storage device of the utility model.

[0017] In the figure: 1. tank body, 2. driving shaft, 3. driving mechanism, 4. liquid inlet, 5. drain valve, 6. supporting legs, 7. box body, 8. blades, 9. inflation chamber, 10. truncated cone block, 11. limiting strip, 12. groove, 13. positioning strip, 14. bottom plate, 15. circular track, 16. arc beam, 17. limiting steel cable, 18. brush. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 4 As shown:

[0019] Embodiment 1: A chemical drilling fluid temporary storage device comprises a tank body 1, a drive shaft 2 is arranged in the tank body 1, a drive mechanism 3 connected to the drive shaft 2 is arranged at the upper end of the tank body 1, a liquid inlet 4 is arranged at the upper end of the tank body 1, a liquid discharge valve 5 is arranged at the lower end of the tank body 1, a plurality of stirring blades are arranged on the drive shaft 2 from top to bottom, a plurality of legs 6 are arranged on the side of the tank body 1, and the legs 6 are used to support the tank body 1.

[0020] The stirring blade comprises a box body 7, a plurality of blades 8 are evenly arranged outside the box body 7, the box body 7 penetrates the driving shaft 2, an air-filled cavity 9 is arranged inside the box body 7, when the box body 7 is submerged in the drilling fluid, the box body 7 floats upward under the buoyancy of the air-filled cavity 9, a truncated cone block 10 is arranged on the driving shaft 2, and the diameter of the truncated cone block 10 is larger at the top and smaller at the bottom.

[0021] A plurality of limit strips 11 are evenly arranged on the side of the truncated cone block 10, a plurality of grooves 12 are arranged inside the box body 7, and a plurality of positioning strips 13 are arranged on the side walls of the grooves 12. When the drilling fluid submerges the stirring blades, the air-filled cavity 9 inside the box body 7 makes the box body 7 float, so that the positioning strips 13 and the limit strips 11 cross, so that the rotation of the drive shaft 2 is transmitted to the box body 7 through the contact between the positioning strips 13 and the limit strips 11. When the box body 7 is located above the liquid surface, under the action of gravity, the positioning strips 13 and the limit strips 11 are staggered, so that the box body 7 does not rotate with the drive shaft 2.

[0022] Embodiment 2: A chemical drilling fluid temporary storage device comprises a tank body 1, a drive shaft 2 is arranged in the tank body 1, a drive mechanism 3 connected to the drive shaft 2 is arranged at the upper end of the tank body 1, a liquid inlet 4 is arranged at the upper end of the tank body 1, a liquid discharge valve 5 is arranged at the lower end of the tank body 1, a plurality of stirring blades are arranged on the drive shaft 2 from top to bottom, a plurality of legs 6 are arranged on the side of the tank body 1, and the legs 6 are used to support the tank body 1.

[0023] The stirring blade comprises a box body 7, a plurality of blades 8 are evenly arranged on the outside of the box body 7, the box body 7 penetrates the driving shaft 2, the upper and lower ends of the box body 7 are both connected with the driving shaft 2 in a sliding and sealing manner, an air-filled cavity 9 is arranged inside the box body 7, when the box body 7 is submerged in the drilling fluid, the box body 7 floats upward under the buoyancy of the air-filled cavity 9, a truncated cone block 10 is arranged on the driving shaft 2, and the diameter of the truncated cone block 10 is larger at the top and smaller at the bottom.

[0024] A plurality of limit strips 11 are evenly arranged on the side of the truncated cone block 10, a plurality of grooves 12 are arranged inside the box body 7, a plurality of positioning strips 13 are arranged on the side wall of the groove 12, a bottom plate 14 is arranged at the lower end of the tank body 1, a circular track 15 is arranged on the bottom plate 14, the legs 6 are all inserted in the circular track 15, the legs 6 are all rotatably connected to two spring telescopic mechanisms, the spring telescopic mechanisms are all rotatably connected to the inside of the circular track 15, the spring telescopic mechanisms play a buffering role, and are used to neutralize the torque generated by the rotation of the drilling fluid in the tank body 1.

[0025] A plurality of ball bearings are arranged on the side of the support leg 6, a slide rail cooperating with the ball bearings is arranged on the inner wall of the annular track 15, the support leg 6 is provided with a limiting steel cable 17 connected to the bottom plate 14, the limiting steel cable 17 prevents the support leg 6 from leaving the annular track 15, an arc-shaped beam 16 is arranged at the lower end of the driving shaft 2, and a brush 18 is arranged on the lower end surface of the arc-shaped beam 16, the brush 18 contacts with the inner bottom surface of the tank body 1, thereby playing a cleaning role.

[0026] The specific working process is as follows: when the drilling fluid submerges the stirring blades, the air-filled cavity 9 inside the box body 7 makes the box body 7 float, so that the positioning bar 13 and the limiting bar 11 cross, so that the rotation of the drive shaft 2 is transmitted to the box body 7 through the contact between the positioning bar 13 and the limiting bar 11, and the drilling fluid inside the storage tank is stirred by the blade 8. When the box body 7 is above the liquid surface, under the action of gravity, the positioning bar 13 and the limiting bar 11 are staggered, so that the box body 7 does not rotate with the drive shaft 2, thereby reducing the burden on the drive mechanism 3 and saving energy.

[0027] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A chemical drilling fluid temporary storage device, characterized in that: It includes a tank body, a driving shaft is arranged in the tank body, a driving mechanism connected to the driving shaft is arranged on the upper end of the tank body, a plurality of stirring blades are arranged from top to bottom on the driving shaft, a plurality of legs are arranged on the side of the tank body, the stirring blades include a box body, a plurality of blades are evenly arranged on the outside of the box body, the box body passes through the driving shaft, an inflation cavity is arranged inside the box body, a truncated cone block is arranged on the driving shaft, a plurality of limit strips are evenly arranged on the side of the truncated cone block, a plurality of grooves are arranged inside the box body, and a plurality of positioning strips are arranged on the side walls of the grooves.

2. A chemical drilling fluid temporary storage device as claimed in claim 1, characterized in that: The upper and lower ends of the box body are both connected to the driving shaft in a sliding and sealing manner.

3. A chemical drilling fluid temporary storage device as claimed in claim 1, characterized in that: A bottom plate is arranged at the lower end of the tank body, a circular track is arranged on the bottom plate, the legs are inserted in the circular track, the legs are rotatably connected to two spring telescopic mechanisms, and the spring telescopic mechanisms are rotatably connected to the inside of the circular track.

4. A chemical drilling fluid temporary storage device as claimed in claim 1, characterized in that: A plurality of balls are arranged on the side of the supporting legs, and a slide rail cooperating with the balls is arranged on the inner wall of the annular track.

5. A chemical drilling fluid temporary storage device as claimed in claim 4, characterized in that: The supporting legs are provided with limited position steel cables connected with the bottom plate.

6. A chemical drilling fluid temporary storage device as claimed in claim 1, characterized in that: The lower end of the driving shaft is provided with an arc beam, and the lower end surface of the arc beam is provided with a brush.

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