CN214426476U - Cooling tower capable of fully cooling drilling fluid - Google Patents

Abstract

The utility model discloses a cooling tower of sufficient cooling drilling fluid, comprising a tower body, the air-cooled subassembly, water-cooling component, nozzle assembly, the air intake, high temperature drilling fluid admission pipe and cooling back drilling fluid discharge pipe, the top sealing connection of air-cooled subassembly and tower body, but air-cooled subassembly and tower body split, the maintenance of being convenient for, the middle part of tower body is provided with water-cooling component, the bottom of tower body is connected with collects the storehouse, the bottom of collecting the storehouse is provided with cooling back drilling fluid discharge pipe, be provided with the air intake on the lateral wall of tower body lower part, the inside of tower body is provided with nozzle assembly, nozzle assembly sets up between air-cooled subassembly and water-cooling component, nozzle assembly links to each other with the high temperature drilling fluid admission pipe. And a water collector is arranged between the fan assembly and the nozzle assembly, so that water mist brought out from the tower by the fan is reduced. The drilling fluid is fully cooled under the action of the cooling tower, the oil and gas drilling efficiency is improved, the drilling operation safety is guaranteed, and the service lives of tools and other equipment are prolonged.

Description

Cooling tower capable of fully cooling drilling fluid

Technical Field

The utility model relates to a well drilling technical field, in particular to cooling tower of fully cooling drilling fluid.

Background

In the process of petroleum and natural gas drilling, the drilling fluid mainly plays the roles of cooling a drilling tool, carrying broken rock debris from the bottom of a well, stabilizing a well wall structure and the like. Because the drilling fluid is composed of chemical agents, bentonite or other oil products, the drilling fluid has a strict temperature application range, and the overhigh temperature of the drilling fluid not only affects the performance of the drilling fluid, but also affects the environmental temperature, the service life, the mechanical drilling speed, the stability of a well wall and the like of an underground drilling tool and a guiding test tool. Generally, under the condition of high temperature, various clay particles in the drilling fluid generate flocculation, gelation and viscosity increase, even due to factors such as thermal degradation of drilling fluid materials, the function of the drilling fluid is obviously reduced, so that the power load of a drilling machine is increased, the backflow capacity of the drilling fluid is weakened, the pumping pressure requirement of a drilling pump is increased, the overall power consumption of the drilling machine is increased, and other potential negative factors exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a cooling tower of fully cooling drilling fluid.

The purpose of the utility model is realized through the following technical scheme:

a cooling tower capable of fully cooling drilling fluid comprises a tower body, an air cooling assembly, a water cooling assembly, a nozzle assembly, an air inlet, a high-temperature drilling fluid inlet pipe and a cooled drilling fluid outlet pipe, the air cooling component is hermetically connected with the top of the tower body, the middle part of the tower body is provided with the water cooling component for cooling the drilling fluid, the bottom of the tower body is hermetically connected with a collecting bin, the bottom of the collecting bin is provided with the cooled drilling fluid discharge pipe, the side wall of the tower body is provided with the air inlet used for preventing the drilling fluid from being discharged out of the outer side of the tower body, the air inlet is arranged between the collecting bin and the water cooling assembly, the interior of the tower body is provided with a nozzle assembly, the nozzle assembly is arranged between the air cooling assembly and the water cooling assembly, and the nozzle assembly is connected with the high-temperature drilling fluid inlet pipe.

Furthermore, the air cooling assembly comprises a water collector, a sealing top plate, an explosion-proof fan and a hot air outlet, the sealing top plate is connected with the top of the tower body in a sealing mode, the hot air outlet is formed in the sealing top plate, the explosion-proof fan used for exhausting air rapidly is arranged on the hot air outlet, the water collector matched with the inner wall of the tower body is arranged on the inner wall of the tower body, and the water collector is arranged between the sealing top plate and the nozzle assembly.

Furthermore, the water cooling assembly comprises a filling frame, a water channel part, an explosion-proof centrifugal water pump and a cooling water tank, wherein the filling frame is connected with the water channel part, the output end of the water channel part is connected with the upper end of the cooling water tank, the input end of the water channel part is connected with the output end of the explosion-proof centrifugal water pump, the input end of the explosion-proof centrifugal water pump is connected with the bottom of the cooling water tank, the filling frame is arranged inside the tower body, the water channel part is arranged on the outer wall of the tower body, and the cooling water tank is connected with a water cooling unit for cooling water in the cooling water tank;

the packing frame comprises a plurality of first cooling planes and a plurality of second cooling planes, the first cooling planes and the second cooling planes are arranged at intervals and are parallel to each other, the first cooling planes are composed of a plurality of first cooling pipes which are parallel to each other, the second cooling planes are composed of a plurality of second cooling pipes which are parallel to each other, and the first cooling pipes and the second cooling pipes are arranged at a certain angle to each other;

the waterway component comprises a first input waterway, a first output waterway, a second input waterway and a second output waterway, the first input water channel is arranged opposite to the first output water channel, the second input water channel is arranged opposite to the second output water channel, two ends of the first cooling pipe are respectively communicated with the first input water channel and the first output water channel, two ends of the second cooling pipe are respectively communicated with the second input water channel and the second output water channel, one end of each of the first input water channel, the first output water channel, the second input water channel and the second output water channel is sealed, the other end of the first input water channel and the other end of the second input water channel are both connected with the output end of the explosion-proof centrifugal water pump, the other end of the first output water channel and the other end of the second output water channel are both connected with the upper end of the cooling water tank.

Further, nozzle assembly includes that shower nozzle, reposition of redundant personnel branch pipe, feed liquor are responsible for and the reposition of redundant personnel cavity, the feed liquor be responsible for one end with the high temperature drilling fluid admission pipe links to each other, and its other end passes behind the wall of tower body with the upper end of reposition of redundant personnel cavity links to each other, the lateral wall of reposition of redundant personnel cavity is with a plurality of the one end of reposition of redundant personnel branch pipe links to each other, the reposition of redundant personnel branch pipe with to pack the frame side injection drilling fluid the shower nozzle links to each other.

Further, the input of high temperature drilling fluid admission pipe links to each other with explosion-proof sand pump, tower body, explosion-proof sand pump, explosion-proof centrifugal water pump and cooling water pitcher all set up on the transportation sled, still be provided with explosion-proof electric cabinet on the transportation sled, explosion-proof sand pump, explosion-proof centrifugal water pump, water-cooling unit and explosion-proof fan all with explosion-proof electric cabinet electricity is connected.

Furthermore, the water collector comprises an outer frame and blocking pieces, the outer frame is matched with the inner wall of the tower body, a plurality of mutually parallel blocking pieces are arranged in the outer frame at equal intervals, and the cross sections of the blocking pieces are M-shaped.

Further, the first cooling pipe and the second cooling pipe are perpendicular to each other.

Furthermore, the input end of the explosion-proof sand pump is connected with a high-temperature drilling fluid tank of the solid control system through a high-temperature drilling fluid suction pipe, and the output end of the cooled drilling fluid discharge pipe is connected with a low-temperature drilling fluid tank of the solid control system.

Further, the cross-section of tower body is square, be provided with the shutter on the air intake, be provided with a plurality of diaphragms on the shutter, just the diaphragm to the inside slope of tower body.

The utility model has the advantages that:

1) in the cooling tower, the drilling fluid can be dispersed in the process of spraying the drilling fluid by the nozzle assembly, so that the first cooling of the drilling fluid is realized; under the action of the air cooling assembly, air enters from the air inlet and is then discharged from the hot air discharge port, the air meets the drilling fluid from the lower side to the upper side inside the tower body, and partial heat in the drilling fluid can be taken away by the air, so that the secondary cooling of the drilling fluid is realized; the drilling fluid acts on the packing frame, so that the drilling fluid is fully dispersed, the packing frame can absorb part of heat, the cooling water indirectly exchanges heat with the drilling fluid under the circulating action of the cooling water, and the third cooling of the drilling fluid is realized.

2) In this cooling tower, the packing frame comprises a plurality of first cooling planes and a plurality of second cooling plane, and first cooling plane comprises a plurality of first cooling tubes, and the second cooling plane comprises a plurality of second cooling tubes for drilling fluid fully scatters under the effect of packing frame like this, and the packing frame also can fully take away the heat in the drilling fluid under the action of cooling water circulation.

3) In the cooling tower, the water collector consists of an outer frame and blocking pieces, the cross sections of the blocking pieces are M-shaped, the drilling fluid cannot be discharged from a hot gas discharge port under the action of the blocking pieces, and the heat can be discharged from gaps among the blocking pieces.

Drawings

FIG. 1 is a three-dimensional connection structure of the cooling tower;

FIG. 2 is a top view of the cooling tower;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of the structure at B of FIG. 3;

FIG. 5 is a top view block diagram of the nozzle assembly;

FIG. 6 is a top view structural view of the water collector;

FIG. 7 is a sectional view of the structure of FIG. 6C-C;

FIG. 8 is a connecting structure diagram of the cooling tower with the tower body laid down;

in the figure, 1-tower body, 2-air inlet, 3-high temperature drilling fluid inlet pipe, 4-cooled drilling fluid outlet pipe, 5-collection bin, 6-water collector, 7-sealed top plate, 8-explosion-proof fan, 9-hot air outlet, 10-explosion-proof centrifugal water pump, 11-cooling water tank, 12-first cooling plane, 13-second cooling plane, 14-first cooling pipe, 15-second cooling pipe, 16-first input water channel, 17-first output water channel, 18-second input water channel, 19-second output water channel, 20-spray head, 21-shunt branch pipe, 22-liquid inlet main pipe, 23-shunt cavity, 24-explosion-proof sand pump, 25-transportation pry, 26-explosion-proof electric control box and 27-outer frame, 28-blocking piece, 29-high temperature drilling fluid suction pipe, 30-lifting lug, 31-pin shaft, 32-transverse plate, 33-fixed upright post and 34-movable upright post.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution:

the utility model provides a cooling tower of drilling fluid can fully be cooled down, including tower body 1, the air-cooled subassembly, the water-cooling subassembly, nozzle assembly, air intake 2, high temperature drilling fluid admission pipe 3 and cooling back drilling fluid discharge pipe 4, the top sealing connection of air-cooled subassembly and tower body 1, tower body 1 is the rectangular shell form of shell, the middle part of tower body 1 is provided with the water-cooling subassembly that is used for cooling the drilling fluid, the bottom sealing connection of tower body 1 has collection storehouse 5, the bottom of collecting storehouse 5 is provided with cooling back drilling fluid discharge pipe 4, be provided with air intake 2 that is used for preventing drilling fluid discharge tower body 1 outside on the lateral wall of tower body 1, air intake 2 sets up between collection storehouse 5 and water-cooling subassembly, the inside of tower body 1 is provided with nozzle assembly, nozzle assembly sets up between air-cooled subassembly and water-cooling subassembly, nozzle assembly links to each other with high temperature drilling fluid admission pipe 3. The input end of the explosion-proof sand pump 24 is connected with a solid control system drilling high-temperature liquid tank through a high-temperature drilling liquid suction pipe 29, and the output end of the cooled drilling liquid discharge pipe 4 is connected with a solid control system drilling low-temperature liquid tank. The solid control system drilling high-temperature liquid tank and the solid control system drilling low-temperature liquid tank are prior art devices, the solid control system drilling high-temperature liquid tank is mainly used for precipitating gravel in drilling fluid, the solid control system drilling low-temperature liquid tank is used for further removing gravel, the high-temperature drilling fluid suction pipe 29 is connected to the input end and connected to the upper side of the solid control system drilling high-temperature liquid tank, only drilling fluid on the upper side is conveyed, and gravel on the lower side is not conveyed to be precipitated. The cross-section of tower body 1 is square, is provided with the shutter on the air intake 2, is provided with a plurality of diaphragm 32 on the shutter, and diaphragm 32 is to the inside slope of tower body 1, prevents the drilling fluid outflow. The section of the tower body 1 is rectangular or square. The collection bin 5 is in an inverted quadrangular pyramid shape, and the drilling fluid discharge pipe 4 is connected to the tip of the quadrangular pyramid shape after cooling. Drilling fluid in a drilling high-temperature fluid tank of the solid control system enters the nozzle assembly through the explosion-proof sand pump 24, the nozzle assembly sprays the drilling fluid and then enters the collection bin 5, and the drilling fluid in the collection bin 5 enters a drilling low-temperature fluid tank of the solid control system through the cooled drilling fluid discharge pipe 4.

Preferably, the air-cooled subassembly includes receiving hydrophone 6, sealed roof 7, explosion-proof fan 8 and steam discharge port 9, and sealed roof 7 and 1 top sealing connection of tower body are provided with steam discharge port 9 on the sealed roof 7, are provided with the explosion-proof fan 8 that is used for quick carminative on the steam discharge port 9, be provided with on the inner wall of tower body 1 with 1 inner wall complex of tower body receive hydrophone 6, receive hydrophone 6 and set up between sealed roof 7 and nozzle assembly. The sealing top plate 7 is divided into two types, one type is a whole plate, the other type is that a plurality of air holes are formed in the whole plate, a hot air outlet 9 is formed in the plate, the hot air outlet 9 is a hollow cylinder, the explosion-proof fan 8 comprises an explosion-proof motor and an explosion-proof motor driven fan, the fan is arranged in the hollow cylinder, the explosion-proof motor is arranged outside the hollow cylinder, hot air can be fully drawn out, the air inlet 2 is an entry point of air, and the explosion-proof motor is the prior art. In the cooling tower, two hollow cylinders are symmetrically arranged, and each hollow cylinder is provided with an explosion-proof fan 8.

Preferably, the water receiver 6 comprises an outer frame 27 and blocking pieces 28, the outer frame 27 is matched with the inner wall of the tower body 1, a plurality of blocking pieces 28 which are parallel to each other are arranged in the outer frame 27 at equal intervals, and the cross section of each blocking piece 28 is M-shaped. The water collector 6 is composed of an outer frame 27 and blocking sheets 28, the cross section of the blocking sheets 28 is in an M shape, the drilling fluid can not be discharged from a hot gas discharge port under the action of the blocking sheets 28, and heat can be discharged from gaps between the blocking sheets 28.

Preferably, the water cooling assembly comprises a filling frame, a water channel part, an explosion-proof centrifugal water pump 10 and a cooling water tank 11, the filling frame is connected with the water channel part, the output end of the water channel part is connected with the upper end of the cooling water tank 11, the input end of the water channel part is connected with the output end of the explosion-proof centrifugal water pump 10, the input end of the explosion-proof centrifugal water pump 10 is connected with the bottom of the cooling water tank 11, the filling frame is arranged inside the tower body 1, the water channel part is arranged on the outer wall of the tower body 1, the cooling water tank 11 is connected with a water cooling unit for cooling the cooling water in the cooling water tank 11, and the water cooling unit adopts the prior art equipment; the packing frame comprises a plurality of first cooling planes 12 and a plurality of second cooling planes 13, wherein the first cooling planes 12 and the second cooling planes 13 are arranged at intervals and are parallel to each other, the first cooling planes 12 are composed of a plurality of first cooling pipes 14 which are parallel to each other, the second cooling planes 13 are composed of a plurality of second cooling pipes 15 which are parallel to each other, and the first cooling pipes 14 and the second cooling pipes 15 are arranged at a certain angle; the water channel part comprises a first input water channel 16, a first output water channel 17, a second input water channel 18 and a second output water channel 19, the first input water channel 16 is arranged opposite to the first output water channel 17, the second input water channel 18 is arranged opposite to the second output water channel 19, two ends of a first cooling pipe 14 are respectively communicated with the first input water channel 16 and the first output water channel 17, two ends of a second cooling pipe 15 are respectively communicated with the second input water channel 18 and the second output water channel 19, one ends of the first input water channel 16, the first output water channel 17, the second input water channel 18 and the second output water channel 19 are sealed, the other end of the first input water channel 16 and the other end of the second input water channel 18 are respectively connected with an output end of the explosion-proof centrifugal water pump 10, and the other end of the first output water channel 17 and the other end of the second output water channel 19 are respectively connected with an upper end of the cooling water tank 11. In the cooling tower, the filler frame includes a plurality of first cooling planes 12 and a plurality of second cooling planes 13, make first input water course 16, first output water course 17, second input water course 18 and second output water course 19 all be the bow font like this, the cross-section of tower body 1 is squarely, first input water course 16 and first output water course 17 set up on two relative faces, second input water course 18 and second output water course 19 set up on two other relative faces, can make the filler frame fully realize the heat exchange like this. The first cooling pipe 14 and the second cooling pipe 15 are perpendicular to each other. Wherein, the lower ends of the first output water channel 17 and the second output water channel 19 are sealed, and the upper ends are respectively connected with a fixing piece at the opening part of the cooling water tank 11 through pipelines; the upper ends of the first input water channel 16 and the second input water channel 18 are sealed, the lower ends of the first input water channel 16 and the second input water channel 18 are respectively connected with the explosion-proof centrifugal water pump 10, a three-way pipe is arranged on the explosion-proof centrifugal water pump 10, one pipe orifice is connected with the explosion-proof centrifugal water pump 10, and the other two pipe orifices are respectively connected with the first input water channel 16 and the second input water channel 18. In this cooling tower, the packing frame comprises a plurality of first cooling planes 12 and a plurality of second cooling planes 13, and first cooling plane 12 comprises a plurality of first cooling tubes 14, and second cooling plane 13 comprises a plurality of second cooling tubes 15, makes the drilling fluid fully disperse under the effect of packing frame like this, and the heat in the drilling fluid also can fully be taken away to the packing frame. The cooling water is clear water with the water temperature less than or equal to 20 ℃. The first cooling tubes 14 on both sides of the first cooling plane 12 are located close to the inner wall of the tower 1 and the second cooling tubes 15 on both sides of the second cooling plane 13 are also located close to the inner wall of the tower 1.

Preferably, the nozzle assembly comprises a spray head 20, a branch flow pipe 21, a main liquid inlet pipe 22 and a branch flow cavity 23, one end of the main liquid inlet pipe 22 is connected with the high-temperature drilling liquid inlet pipe 3, the other end of the main liquid inlet pipe passes through the wall of the tower body 1 and then is connected with the upper end of the branch flow cavity 23, the side wall of the branch flow cavity 23 is connected with one end of the branch flow pipe 21, and the branch flow pipe 21 is connected with the spray head 20 which sprays drilling liquid to the side of the packing frame. Wherein the nozzle 20 is a conventional nozzle, and the nozzle 20 has a plurality of holes, so that the drilling fluid sprayed from the nozzle 20 is in a dispersed state and the nozzle sprays downward. The reposition of redundant personnel cavity 23 is cylindric, and inside is hollow, and the feed liquor is responsible for 22 and is linked to each other with cylindric reposition of redundant personnel cavity 23 upper surface, and the feed liquor is responsible for 22 and tower body 1's lateral wall and is sealing connection, and evenly distributed has a plurality of reposition of redundant personnel branch pipes 21 on cylindric reposition of redundant personnel cavity 23 side, and under the general condition, the quantity of reposition of redundant personnel branch pipe 21 is four. The drilling fluid enters the main liquid inlet pipe 22 through the high-temperature drilling fluid inlet pipe 3, then enters the branch flow branch pipes 21 through the flow dividing cavity 23, and finally is sprayed out through the spray head 20. The spray head 20 adopts a wear-resistant, corrosion-resistant and large-flow solid cone spray nozzle, and the scattering angle is 90-120 degrees.

Preferably, the input of high temperature drilling fluid admission pipe 3 links to each other with explosion-proof sand pump 24, and tower body 1, explosion-proof sand pump 24, explosion-proof centrifugal water pump 10 and cooling water tank 11 all set up on transportation sled 25, still are provided with explosion-proof electric cabinet 26 on the transportation sled 25, and explosion-proof sand pump 24, explosion-proof centrifugal water pump 10 and explosion-proof fan 8 all are connected with explosion-proof electric cabinet 26 electricity. During the drilling process, the oil well can generate combustible gas, so the explosion-proof electric control box 26, the explosion-proof sand pump 24, the explosion-proof centrifugal water pump 10 and the explosion-proof fan 8 are all in the prior art for preventing the combustible gas from being ignited during the working process, and the cooling water tank 11 is used for storing cooling water. The explosion-proof electric control box 26 is internally provided with a microcontroller, a first temperature sensor is arranged in a high-temperature liquid tank for drilling of the solid control system, a second temperature sensor is arranged in the filling frame, a third temperature sensor is arranged in the cooling water tank 11, and the first temperature sensor, the second temperature sensor, the third temperature sensor, the explosion-proof sand pump 24, the explosion-proof centrifugal water pump 10 and the explosion-proof fan 8 are all electrically connected with the microcontroller, so that the automation of the cooling tower is realized through the microcontroller. A microcontroller in the explosion-proof electric control box 26 mainly controls the water chilling unit, the explosion-proof fan 8, the explosion-proof sand pump 24, the explosion-proof centrifugal water pump 10, an automatic control system, illumination and the like.

Be provided with the bracket component between transportation sled 25 and the tower body 1, the bracket component includes fixed column 33 and activity stand 34, the lower extreme of two fixed columns 33 is fixed on transportation sled 25, two fixed columns 33 are close to the setting of cooling water tank 11 side, the upper end of two fixed columns 33 is articulated with tower body 1 one side respectively, two activity stand 34 can be torn open, the lower extreme of two activity stand 34 passes through the bolt fastening on transportation sled 25, fix on tower body 1 through round pin axle 31 in two activity stand 34 upper ends. Because the tower body 1 is higher and inconvenient to transport, the movable upright post 34 is detached in the transportation process, then the tower body 1 is laid down, and the movable upright post and the transportation pry 25 are connected into a whole through the fixed upright post 33 after the movable upright post and the tower body 1 are laid down; when in use, the tower body 1 is erected, the top of the tower body 1 is provided with the lifting lug 30, and the tower body 1 is lifted by crane equipment in the dismounting/mounting process of the movable upright column 34.

Generally, the temperature of cooling water in a cooling tower is controlled below 20 ℃, a temperature sensor is arranged in a cooling water tank and electrically connected with a microcontroller, and when the temperature of the cooling water in the cooling water tank is higher than the centigrade, a cooling unit arranged in the cooling water tank automatically starts to cool the cooling water.

A method of operating a cooling tower, the method comprising the steps of:

(1) transporting the cooling tower, the transportation pry 25 and the water chilling unit to a designated place, and connecting and assembling; the designated place refers to the side of a high-temperature liquid tank drilled by a solid control system at a drilling position. The tower body 1 of the cooling tower is changed into a vertical state from an inverted state, a movable upright column 34 needs to be installed between the tower body 1 and a transportation pry 25, the tower body 1 is connected with an anti-explosion sand pump 24 through a high-temperature drilling fluid inlet pipe 3, the anti-explosion sand pump 24 is connected with a solid control system drilling high-temperature fluid tank through a high-temperature drilling fluid suction pipe 29, the tower body 1 is connected with a solid control system drilling low-temperature fluid tank through a cooling back drilling fluid outlet pipe 4, and then a power transmission cable is connected.

(2) Cooling water is filled into the cooling water tank 11. During transportation, the cooling water tank 11 is free of cooling water, and after the installation of the equipment is completed, the cooling water is added into the cooling water tank 11. The 6 surfaces of the cooling water tank 11 are all provided with heat insulation layers, and the heat exchange between the outside air temperature and the cooling water is mainly prevented.

(3) And determining the starting/stopping of the explosion-proof fan 8 and the sand blasting pump 24 according to the temperature in the high-temperature drilling liquid tank of the solid control system. When a first temperature sensor in the high-temperature drilling fluid tank of the solid control system detects a certain set temperature value (for example, 20 ℃), automatically starting the anti-explosion fan 8, and after the anti-explosion fan 8 runs for 8-12 s, automatically starting the anti-explosion sand pump 24, so that high-temperature drilling fluid in the high-temperature drilling fluid tank of the solid control system enters the nozzle assembly after passing through the anti-explosion sand pump 24, and the nozzle assembly sprays the drilling fluid to the side of the filler frame; and when the temperature detected by a first temperature sensor in the high-temperature drilling fluid tank of the solid control system is lower than-10 ℃, the whole cooling system stops operating.

(4) The start/stop of the explosion-proof centrifugal water pump 10 is determined according to the temperature in the stuffing frame. When a second temperature sensor in the packing frame detects a certain set temperature value (for example, 30 ℃), the anti-explosion centrifugal water pump 10 is automatically started, so that cooling water in the cooling water tank 11 enters the packing frame through the anti-explosion centrifugal water pump 10 and the water channel part, the cooling water cools the packing frame, and the packing frame cools the drilling fluid; when the temperature detected by the second temperature sensor in the filler frame is lower than a certain set temperature value (for example, 10 ℃), the explosion-proof centrifugal water pump 10 stops working.

(5) The start/stop of the chiller is determined based on the temperature in the cooling water tank 11. When the temperature in the cooling water tank 11 is more than or equal to 20 ℃, the water chilling unit automatically works through the detection of the third temperature sensor; and when the temperature of the water in the cooling water tank 11 is less than or equal to 12-15 ℃, the water chilling unit stops working.

In the field piping, the suction port of the sand pump is connected with the tank body at a low position to suck the high-temperature drilling fluid, and the discharge port at the bottom of the cooling tower is directly placed in another tank, so that the circulating cooling of the drilling fluid in the same tank is avoided. A low-level temperature measuring sensor is placed in a tank pumped by a sand pump, after the temperature reaches a set value, the equipment starts to operate, cooling water is injected into a cooling water tank, and when the temperature of a filling frame reaches a certain value, a water cooling system is automatically started. The cooling water inside the cooling water tank can use the refrigerating unit to produce low-temperature cold water circulation, the effect can be better, if the low-temperature cold water unit is used, only an independent water inlet and an independent water outlet of the cold water unit are needed to be made on the cooling water tank, and a power supply of the cold water unit is connected with a wire from the control cabinet. If the cooling capacity is increased and a better cooling effect is obtained, a plurality of sets of cooling towers can be additionally arranged on the site, the cooling towers can be connected in series or in parallel, but the cooling effect of the series connection is certainly good, and the treatment capacity of the parallel connection is larger.

In the cooling tower, the drilling fluid can be dispersed in the process of spraying the drilling fluid by the nozzle assembly, so that the first cooling of the drilling fluid is realized; under the action of the air cooling assembly, air enters from the air inlet and is then discharged from the hot air discharge port, the air meets the drilling fluid from the lower side to the upper side inside the tower body, and partial heat in the drilling fluid can be taken away by the air, so that the secondary cooling of the drilling fluid is realized; the drilling fluid acts on the packing frame, so that the drilling fluid is fully dispersed, the packing frame can absorb part of heat, the cooling water indirectly exchanges heat with the drilling fluid under the circulating action of the cooling water, and the third cooling of the drilling fluid is realized.

In the using process, a plurality of cooling towers can be connected in series, and the connection mode is that the cooled drilling fluid discharge pipe 4 of the previous cooling tower is connected with the high-temperature drilling fluid inlet pipe 3 of the next cooling tower.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (9)

1. A cooling tower capable of sufficiently cooling drilling fluid is characterized in that: including tower body (1), air-cooled subassembly, water-cooled subassembly, nozzle assembly, air intake (2), high temperature drilling fluid admission pipe (3) and cooling back drilling fluid discharge pipe (4), the air-cooled subassembly with the top sealing connection of tower body (1), the middle part of tower body (1) is provided with and is used for cooling off the drilling fluid water-cooled subassembly, the bottom sealing connection of tower body (1) has and collects storehouse (5), the bottom of collecting storehouse (5) is provided with drilling fluid discharge pipe (4) after the cooling, be provided with on the lateral wall of tower body (1) and be used for preventing that the drilling fluid from discharging air intake (2) in the tower body (1) outside, air intake (2) set up collect storehouse (5) with between the water-cooled subassembly, the inside of tower body (1) is provided with nozzle assembly, nozzle assembly sets up air-cooled subassembly with between the water-cooled subassembly, the nozzle assembly is connected with the high-temperature drilling fluid inlet pipe (3).

2. A cooling tower for adequately cooling drilling fluid as set forth in claim 1, wherein: the air cooling assembly comprises a water collector (6), a sealing top plate (7), an explosion-proof fan (8) and a hot air discharge port (9), the sealing top plate (7) is connected with the top of the tower body (1) in a sealing mode, the hot air discharge port (9) is arranged on the sealing top plate (7), the explosion-proof fan (8) used for exhausting air rapidly is arranged on the hot air discharge port (9), the water collector (6) matched with the inner wall of the tower body (1) is arranged on the inner wall of the tower body (1), and the water collector (6) is arranged between the sealing top plate (7) and the nozzle assembly.

3. A cooling tower for adequately cooling drilling fluid as set forth in claim 2, wherein: the water cooling assembly comprises a filling frame, a water channel part, an anti-explosion centrifugal water pump (10) and a cooling water tank (11), wherein the filling frame is connected with the water channel part, the output end of the water channel part is connected with the upper end of the cooling water tank (11), the input end of the water channel part is connected with the output end of the anti-explosion centrifugal water pump (10), the input end of the anti-explosion centrifugal water pump (10) is connected with the bottom of the cooling water tank (11), the filling frame is arranged in the tower body (1), the water channel part is arranged on the outer wall of the tower body (1), and the cooling water tank (11) is connected with a water cooling unit for cooling water in the cooling water tank (11);

the packing frame comprises a plurality of first cooling planes (12) and a plurality of second cooling planes (13), wherein the first cooling planes (12) and the second cooling planes (13) are arranged at intervals and are parallel to each other, the first cooling planes (12) are composed of a plurality of first cooling pipes (14) which are parallel to each other, the second cooling planes (13) are composed of a plurality of second cooling pipes (15) which are parallel to each other, and the first cooling pipes (14) and the second cooling pipes (15) are arranged at a certain angle to each other;

the water channel part comprises a first input water channel (16), a first output water channel (17), a second input water channel (18) and a second output water channel (19), the first input water channel (16) and the first output water channel (17) are oppositely arranged, the second input water channel (18) and the second output water channel (19) are oppositely arranged, two ends of a first cooling pipe (14) are respectively communicated with the first input water channel (16) and the first output water channel (17), two ends of a second cooling pipe (15) are respectively communicated with the second input water channel (18) and the second output water channel (19), one ends of the first input water channel (16), the first output water channel (17), the second input water channel (18) and the second output water channel (19) are sealed, and the other end of the first input water channel (16) and the other end of the second input water channel (18) are connected with the output end of the explosion-proof centrifugal water pump (10), the other end of the first output water channel (17) and the other end of the second output water channel (19) are both connected with the upper end of the cooling water tank (11).

4. A cooling tower for adequately cooling drilling fluid as set forth in claim 3, wherein: nozzle assembly includes shower nozzle (20), reposition of redundant personnel branch pipe (21), feed liquor is responsible for (22) and reposition of redundant personnel cavity (23), the feed liquor be responsible for the one end of (22) with high temperature drilling fluid admission pipe (3) link to each other, and its other end passes behind the wall of tower body (1) with the upper end of reposition of redundant personnel cavity (23) links to each other, the lateral wall of reposition of redundant personnel cavity (23) is with a plurality of the one end of reposition of redundant personnel branch pipe (21) links to each other, reposition of redundant personnel branch pipe (21) with to pack the side injection drilling fluid shower nozzle (20) link to each other.

5. A cooling tower capable of sufficiently cooling drilling fluid according to claim 4, wherein: the input of high temperature drilling fluid admission pipe (3) links to each other with explosion-proof sand pump (24), tower body (1), explosion-proof sand pump (24), explosion-proof centrifugal water pump (10) and cooling water pitcher (11) all set up on transportation sled (25), still be provided with explosion-proof electric cabinet (26) on transportation sled (25), explosion-proof sand pump (24), explosion-proof centrifugal water pump (10), water chilling unit and explosion-proof fan (8) all with explosion-proof electric cabinet (26) electricity is connected.

6. A cooling tower capable of sufficiently cooling drilling fluid according to claim 2, 3, 4 or 5, wherein: the water collector (6) comprises an outer frame (27) and blocking pieces (28), the outer frame (27) is matched with the inner wall of the tower body (1), the blocking pieces (28) which are parallel to each other are arranged in the outer frame (27) at equal intervals, and the cross section of each blocking piece (28) is M-shaped.

7. A cooling tower capable of sufficiently cooling drilling fluid according to claim 3 or 4, wherein: the first cooling pipe (14) and the second cooling pipe (15) are perpendicular to each other.

8. A cooling tower capable of sufficiently cooling drilling fluid according to claim 5, wherein: the input end of the explosion-proof sand pump (24) is connected with a solid control system drilling high-temperature liquid tank through a high-temperature drilling liquid suction pipe (29), and the output end of the cooled drilling liquid discharge pipe (4) is connected with a solid control system drilling low-temperature liquid tank.

9. A cooling tower for adequately cooling drilling fluid as set forth in claim 1, wherein: the cross-section of tower body (1) is square, be provided with the shutter on air intake (2), be provided with a plurality of diaphragms (32) on the shutter, just diaphragm (32) to tower body (1) inside slope.

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