CN214010060U

CN214010060U - Petroleum drilling fluid recycling and cooling device

Info

Publication number: CN214010060U
Application number: CN202120025341.XU
Authority: CN
Inventors: 江海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-08-20
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a cooling device is retrieved to oil drilling fluid, be the cooler bin of opening setting including the top, the cooler bin intussuseption is filled with the cooling water, the right side of cooler bin is equipped with the collecting box that the top set up for the opening, and the top fixed mounting of collecting box has first apron, is equipped with heat conduction coil pipe in the cooler bin, and heat conduction coil pipe's one end intercommunication is fixed with the feed liquor pipe, and the right-hand member of feed liquor pipe is fixed with the left side intercommunication of collecting box, and the right side bottom intercommunication of collecting box is fixed with the fluid-discharge tube, and the right-hand member intercommunication of fluid-discharge tube is fixed with the valve. The utility model relates to a rationally, be convenient for carry out cooling to the drilling fluid, be convenient for in time change the cooling operation to the cooling water, be convenient for filter the rubble impurity in the drilling fluid, and be convenient for the circulation collision filter screen is stained with above that attaches accumulational rubble impurity and shake the clearance that falls, alleviates the jam phenomenon of filter screen, guarantees stable extraction operation, satisfies the user demand.

Description

Petroleum drilling fluid recycling and cooling device

Technical Field

The utility model relates to a cooling arrangement technical field is retrieved to oil drilling fluid especially relates to a cooling device is retrieved to oil drilling fluid.

Background

In the process of petroleum drilling and exploitation, a large amount of drilling fluid can be generated, the drilling fluid is a circulating flushing medium used in a drilling process and is a drilling blood, the drilling fluid is also called a drilling flushing fluid, the drilling fluid returned from a wellhead can be accompanied by high temperature sometimes, the high-temperature drilling fluid is not beneficial to effective treatment of the drilling fluid, and the drilling fluid treatment equipment can be damaged, so that inconvenience is brought to drilling operation, and the progress and safety of a drilling effect are influenced;

the existing petroleum drilling fluid recovery cooling device has the defects of inconvenient replacement and cooling of cooling water in time and inconvenient finding by personnel in time, when the temperature of the cooling water is too high, the cooling efficiency is reduced, and the pumped drilling fluid is inconvenient to filter in time, in the drilling process, a large amount of silt, broken stone and impurities are brought out from the underground of the drilling fluid, if the drilling fluid is directly pumped into a water suction pump, the phenomenon of internal blockage of the water suction pump is easily caused, and a part of the drilling fluid can be filtered by arranging a filter screen at the water inlet end of the water suction pump, but the utility model is inconvenient for timely cleaning the broken stone impurities adhered on the filter screen, the filter screen is easy to block after long-time filtration, further reducing the pumping efficiency, and improving by combining the above situation, we propose a petroleum drilling fluid recycling cooling device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a petroleum drilling fluid recycling and cooling device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a petroleum drilling fluid recycling and cooling device comprises a cooling box with an opening at the top, cooling water is filled in the cooling box, a collecting box with an opening at the top is arranged on the right side of the cooling box, a first cover plate is fixedly arranged at the top of the collecting box, a heat conduction coil is arranged in the cooling box, one end of the heat conduction coil is communicated and fixed with a liquid inlet pipe, the right end of the liquid inlet pipe is communicated and fixed with the left side of the collecting box, the bottom of the right side of the collecting box is communicated and fixed with a liquid discharge pipe, the right end of the liquid discharge pipe is communicated and fixed with a valve, a second cover plate is fixedly arranged at the top of the cooling box, a first water suction pump is fixedly arranged at the top of the second cover plate, the water outlet end of the first water suction pump extends into the cooling box and is communicated and fixed with the other end of the heat conduction coil, a second water suction pump is fixedly arranged at the top of the left side of the cooling box, and the water outlet end of the second water suction pump extends into the cooling box, a controller and a temperature sensor are fixedly arranged on the left side of the cooling box, a probe of the temperature sensor extends into the cooling box, the temperature sensor is electrically connected with the controller, the bottom of the left side of the cooling box is communicated and fixed with a water outlet pipe, a solenoid valve is fixedly arranged on the left end of the water outlet pipe, the solenoid valve and a second water pump are both electrically connected with the controller, a filter box with an opening on the right side is fixedly arranged on the top of a second cover plate, the water inlet end of a first water pump extends into the filter box, a filter screen which is obliquely arranged is movably sleeved in the filter box, a blocking plate is in sealing contact with the right side of the filter box and is fastened on the right side of the filter box by screw threads, rectangular pipes with blocking structures at the right ends are fixedly arranged on the top of the left side and the bottom of the blocking plate, a triangular scraper plate is fixedly arranged on the bottom of the right side of the filter screen, rectangular rods are fixedly arranged on the right side of the triangular scraper plate and the top of the filter screen, two rectangular pole length are not equal, the rectangular pole slip cap is established in the rectangular pipe that corresponds, fixed mounting has the spring between the right-hand member of rectangular pole and the right-hand member inner wall of the rectangular pipe that corresponds, be equipped with the connecting pipe in the rose box, the right-hand member of connecting pipe extends to the right side of rose box, closure plate fixed sleeve establishes on the connecting pipe, the left side fixed mounting of closure plate has the collision pole, the collision pole cooperatees with the filter screen, the top fixed mounting of filter box has driving motor, driving motor's output shaft bottom extends to in the rose box and fixed mounting has the eccentric wheel, the left side fixed mounting of filter screen has the fixed block, the left side of fixed block is inlayed and is equipped with the ball, the right side and the ball rolling contact of eccentric wheel.

Preferably, first circular port and second circular port have been seted up on the left side inner wall of cooler bin, the inner wall of first circular port and the outside fixed connection of temperature sensor probe, the inner wall of second circular port and the outside fixed connection of outlet pipe.

Preferably, a third circular hole is formed in the inner wall of the top of the filter box, a sealing bearing is fixedly sleeved in the third circular hole, and the inner side of an inner ring of the sealing bearing is fixedly connected with the outer side of an output shaft of the driving motor.

Preferably, the left side bonding of closure plate is fixed with the rubber seal, the left side of rubber seal and the right side in close contact with of rose box, the equal fixed mounting in left side top and the left side bottom of closure plate has the rectangular block, the rectangular channel has all been seted up to the right side top and the right side bottom of rose box, the outside of rectangular block and the inner wall movable contact of the rectangular channel that corresponds, the thread groove has been seted up at the top of the rectangular block that lies in the top in two rectangular blocks, thread groove internal thread bush is equipped with T shape fastening bolt, T shape fastening bolt's top extends to the top of rose box, rose box thread bush is established on T shape fastening bolt.

Preferably, the inner wall of one side, which is far away from each other, of each rectangular pipe is fixedly provided with a limiting block, one side, which is far away from each other, of each rectangular rod is provided with a limiting groove, and the limiting blocks are connected with the corresponding limiting grooves in a sliding mode.

Preferably, the front side and the rear side of the filter screen are respectively in movable contact with the front side inner wall and the rear side inner wall of the filter box, and the front side and the rear side of the triangular scraper blade are respectively in movable contact with the front side inner wall and the rear side inner wall of the filter box.

Compared with the prior art, the beneficial effects of the utility model are that:

the drilling fluid is extracted by starting the first water pump through a water inlet end, the filter box and a connecting pipe of the first water pump in sequence, the extracted drilling fluid passes through the filter screen through the connecting pipe and enters the heat-conducting coil through a water outlet end of the first water pump and enters the collecting box through a liquid inlet pipe, the heat-conducting coil transfers heat in the drilling fluid to cooling water in the cooling box to cool the drilling fluid, the temperature sensor monitors the temperature of the cooling water in the cooling box, when the temperature of the cooling water is higher than a preset temperature, the temperature sensor controls the second water pump and the electromagnetic valve to be simultaneously started through the controller, the second water pump extracts outside cooling water through a water inlet end and enters the cooling box through the second water pump, the hot cooling water in the cooling box is discharged to the outside through a water discharge pipe and an electromagnetic valve, the purpose of replacing and cooling the cooling water in time is achieved through the mode that cold water enters the hot water and is discharged, the filter screen filters crushed stone impurities in the extracted drilling fluid, the filtered crushed stone impurities are blocked and accumulated on the right side of the filter screen, the driving motor is started to drive the eccentric wheel to rotate for the first half circle, the ball is extruded, the extrusion force moves rightwards through the ball to drive the fixed block to move rightwards, the fixed block drives the filter screen to move rightwards and collide with the collision rod, the filter screen drives the two rectangular rods to slide rightwards in the corresponding rectangular pipes respectively through the triangular scraper blade and compress the spring, and the extrusion force on the ball is gradually released when the eccentric wheel rotates for the, the elasticity of spring drives the filter screen through the rectangle pole that corresponds and triangle scraper blade and moves back to the left and reset this moment, the eccentric wheel lasts the rotation, and then make filter screen circulation right side left side remove and bump with the collision pole, the slope setting of the power fit filter screen of vibrations, make the filter screen right side be stained with attaches the bottom that accumulational rubble impurity was shaken off the rose box, and then reach the automatic mesh of shaking the clearance to the filter screen, after the use, forward rotation T shape fastening bolt shifts out from the thread groove gradually, draw the closure plate to loop through two rectangular pipes immediately right, two springs and two rectangular poles drive filter screen and triangle scraper blade and shift out from the rose box right side, the rubble impurity in the rose box is released to the right while of triangle scraper blade removal, can clear up the filter screen.

The utility model relates to a rationally, be convenient for carry out cooling to the drilling fluid, be convenient for in time change the cooling operation to the cooling water, be convenient for filter the rubble impurity in the drilling fluid, and be convenient for the circulation collision filter screen is stained with above that attaches accumulational rubble impurity and shake the clearance that falls, alleviates the jam phenomenon of filter screen, guarantees stable extraction operation, satisfies the user demand.

Drawings

Fig. 1 is a schematic sectional structural view of an oil drilling fluid recycling and cooling device provided by the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 101 cooling box, 102 first suction pump, 103 collecting box, 1 solenoid valve, 2 heat conduction coil pipes, 3 second suction pump, 4 temperature sensor, 5 controller, 6 rose box, 7 closure plate, 8 filter screen, 9 fixed block, 10 driving motor, 11 eccentric wheel, 12 collision pole, 13 rectangle pole, 14 triangle scraper blade, 15 rectangle pipe, 16 spring, 17 connecting pipe, 18 rectangle piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an oil drilling fluid recycling and cooling device comprises a cooling box 101 with an opening at the top, cooling water is filled in the cooling box 101, a collecting box 103 with an opening at the top is arranged on the right side of the cooling box 101, a first cover plate is fixedly arranged on the top of the collecting box 103, a heat conducting coil 2 is arranged in the cooling box 101, one end of the heat conducting coil 2 is communicated with and fixed with a liquid inlet pipe, the right end of the liquid inlet pipe is communicated with and fixed to the left side of the collecting box 103, the right bottom of the collecting box 103 is communicated with and fixed with a liquid outlet pipe, the right end of the liquid outlet pipe is communicated with and fixed with a valve, a second cover plate is fixedly arranged on the top of the cooling box 101, a first water pump 102 is fixedly arranged on the top of the second cover plate, the water outlet end of the first water pump 102 extends into the cooling box 101 and is communicated with and fixed, the water outlet end of the second water pump 3 extends into the cooling box 101, the controller 5 and the temperature sensor 4 are fixedly installed on the left side of the cooling box 101, the probe of the temperature sensor 4 extends into the cooling box 101, the temperature sensor 4 is electrically connected with the controller 5, the left bottom of the cooling box 101 is communicated and fixed with a water outlet pipe, the left end of the water outlet pipe is fixedly installed with the electromagnetic valve 1, the electromagnetic valve 1 and the second water pump 3 are both electrically connected with the controller 5, the top of the second cover plate is fixedly installed with the filter box 6 with the right side being provided with an opening, the water inlet end of the first water pump 102 extends into the filter box 6, the filter box 6 is movably sleeved with an obliquely arranged filter screen 8, the right side of the filter box 6 is in sealing contact with the blocking plate 7, the blocking plate 7 is fastened on the right side of the filter box 6 by screw threads, and the left top and left bottom of the blocking plate 7 are both fixedly installed with the rectangular pipe 15 with the right end being in a blocking structure, a triangular scraper blade 14 is fixedly arranged at the bottom of the right side of the filter screen 8, rectangular rods 13 are fixedly arranged on the right side of the triangular scraper blade 14 and the top of the right side of the filter screen 8, the two rectangular rods 13 are different in length, the rectangular rods 13 are slidably sleeved in the corresponding rectangular tubes 15, springs 16 are fixedly arranged between the right ends of the rectangular rods 13 and the inner walls of the right ends of the corresponding rectangular tubes 15, a connecting pipe 17 is arranged in the filter box 6, the right end of the connecting pipe 17 extends to the right side of the filter box 6, a blocking plate 7 is fixedly sleeved on the connecting pipe 17, a collision rod 12 is fixedly arranged on the left side of the blocking plate 7, the collision rod 12 is matched with the filter screen 8, a driving motor 10 is fixedly arranged at the top of the filter box 6, an eccentric wheel 11 is fixedly arranged at the bottom end of an output shaft of the driving motor 10, a fixed block 9 is fixedly arranged in the filter box 6, a fixed block 9 is embedded with balls, eccentric wheel 11's right side and ball rolling contact, the utility model relates to a rationally, be convenient for carry out cooling to the drilling fluid, be convenient for in time change the cooling operation to the cooling water, be convenient for filter the rubble impurity in the drilling fluid, and be convenient for circulation collision filter screen 8 attaches accumulational rubble impurity to it and shakes the clearance that falls, alleviates filter screen 8's blocking phenomenon, guarantees to stabilize the extraction operation, satisfies the user demand.

In the utility model, the inner wall of the left side of the cooling box 101 is provided with a first circular hole and a second circular hole, the inner wall of the first circular hole is fixedly connected with the outer side of the probe of the temperature sensor 4, the inner wall of the second circular hole is fixedly connected with the outer side of the water outlet pipe, the inner wall of the top of the filtering box 6 is provided with a third circular hole, the inner wall of the third circular hole is fixedly sleeved with a sealing bearing, the inner side of the inner ring of the sealing bearing is fixedly connected with the outer side of the output shaft of the driving motor 10, the left side of the blocking plate 7 is bonded and fixed with a sealing rubber sheet, the left side of the sealing rubber sheet is closely contacted with the right side of the filtering box 6, the left side top and the left side bottom of the blocking plate 7 are both fixedly provided with rectangular blocks 18, the right side top and the right side bottom of the filtering box 6 are both provided with rectangular grooves, the outer sides of the rectangular blocks 18 are in movable contact with the inner walls of the corresponding rectangular grooves, the top of the rectangular blocks 18 above the two rectangular blocks 18 are both provided with thread grooves, the utility model has the advantages of reasonable design, convenient cooling of drilling fluid, convenient replacement and cooling operation of cooling water in time, convenient filtration of rubble impurities in the drilling fluid, and convenient shaking and stacking cleaning of rubble impurities attached to the filter screen 8 by the circulating collision filter screen 8, alleviate the jam phenomenon of filter screen 8, guarantee to stabilize the extraction operation, satisfy the user demand.

The working principle is as follows: when the device is used, the connecting pipe 17 is connected with a suction pipeline inserted into a wellhead from the outside, the water inlet end of the second water pump 3 is connected with a tap water pipe from the outside, the first water pump 102 is started, the first water pump 102 pumps drilling fluid sequentially through the water inlet end, the filter box 6 and the connecting pipe 17, the pumped drilling fluid enters the filter box 6 through the connecting pipe 17, the drilling fluid passes through the filter screen 8 and enters the heat conducting coil 2 through the water outlet end of the first water pump 102, the heat conducting coil 2 absorbs heat in the drilling fluid and transfers the heat to cooling water in the cooling box 101, the cooling water cools the drilling fluid, the cooled drilling fluid enters the collecting box 103 through the liquid inlet pipe, the collecting box 103 collects the drilling fluid, the temperature sensor 4 monitors the temperature of the cooling water in the cooling box 101, and when the temperature of the cooling water is higher than a preset temperature, the temperature sensor 4 controls the second water pump 3 and the electromagnetic valve 1 to be opened simultaneously through the controller 5, the second water pump 3 pumps outside cooling water through a water inlet end, the pumped water enters the cooling box 101 through the second water pump 3, meanwhile, the cooling water in the cooling box 101 is discharged to the outside through the drain pipe and the electromagnetic valve 1, and the purpose of replacing and cooling the cooling water in time is achieved through a mode that cold water enters the hot water to be discharged, so that the cooling efficiency is guaranteed;

meanwhile, the filter screen 8 filters crushed stone impurities in the extracted drilling fluid, the filtered crushed stone impurities are shielded on the right side of the filter screen 8, meanwhile, part of the crushed stone impurities are adhered to and accumulated on the right side of the filter screen 8, then the driving motor 10 is started, an output shaft of the driving motor 10 drives the eccentric wheel 11 to rotate, the eccentric wheel 11 extrudes the balls when rotating for the first half circle, the extrusion force drives the balls to move rightwards, the balls drive the fixed block 9 to move rightwards, the filter screen 8 is driven to move rightwards while the fixed block 9 moves rightwards, the filter screen 8 drives the triangular scraper 14 to move rightwards, the triangular scraper 14 and the filter screen 8 drive the two rectangular rods 13 to respectively slide rightwards in the corresponding rectangular pipes 15, the rectangular rods 13 compress the corresponding springs 16 while moving rightwards, and the filter screen 8 collides with the collision rod 12 rightwards to enable the filter screen 8 to vibrate, when the eccentric wheel 11 rotates for the second half circle, the extrusion force on the balls is gradually released, the spring 16 in a compressed state is reset, the elastic force of the spring 16 drives the filter screen 8 to move back and reset leftwards through the corresponding rectangular rod 13 and the triangular scraper 14, the eccentric wheel 11 continuously rotates, so that the filter screen 8 circularly moves leftwards and rightwards and collides with the collision rod 12, the vibration force is matched with the inclined arrangement of the filter screen 8, so that the crushed stone impurities attached and accumulated on the right side of the filter screen 8 are shaken off to the bottom of the filter box 6, the aim of automatically shaking and cleaning the filter screen 8 is fulfilled, the blocking phenomenon of the filter screen 8 is relieved, and stable extraction operation is guaranteed;

after the filter box is used, the T-shaped fastening bolt is rotated in the forward direction, the T-shaped fastening bolt is gradually moved out of a thread groove while rotating, the blocking plate 7 is pulled rightwards to drive the two rectangular blocks 18 to be respectively drawn out of the corresponding rectangular grooves, the blocking plate 7 sequentially passes through the two rectangular pipes 5, the two springs and the two rectangular rods 13 to drive the filter screen 8 and the triangular scraper blade 14 to move rightwards to be moved out of the filter box 6, the triangular scraper blade 14 moves rightwards to push out crushed stone impurities in the filter box 6, and the filter screen 8 can be cleaned.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A petroleum drilling fluid recycling and cooling device comprises a cooling box (101) with the top arranged as an opening, cooling water is filled in the cooling box (101), and the petroleum drilling fluid recycling and cooling device is characterized in that a collecting box (103) with the top arranged as the opening is arranged on the right side of the cooling box (101), a first cover plate is fixedly mounted at the top of the collecting box (103), a heat-conducting coil (2) is arranged in the cooling box (101), one end of the heat-conducting coil (2) is communicated and fixed with a liquid inlet pipe, the right end of the liquid inlet pipe is communicated and fixed with the left side of the collecting box (103), the right bottom of the right side of the collecting box (103) is communicated and fixed with a liquid outlet pipe, the right end of the liquid outlet pipe is communicated and fixed with a valve, a second cover plate is fixedly mounted at the top of the cooling box (101), a first water suction pump (102) is fixedly mounted at the top of the second cover plate, the water outlet end of the first, a second water suction pump (3) is fixedly installed at the top of the left side of the cooling box (101), the water outlet end of the second water suction pump (3) extends into the cooling box (101), a controller (5) and a temperature sensor (4) are fixedly installed at the left side of the cooling box (101), a probe of the temperature sensor (4) extends into the cooling box (101), the temperature sensor (4) is electrically connected with the controller (5), a water outlet pipe is communicated and fixed at the bottom of the left side of the cooling box (101), an electromagnetic valve (1) is fixedly installed at the left end of the water outlet pipe, the electromagnetic valve (1) and the second water suction pump (3) are both electrically connected with the controller (5), a filter box (6) with the right side arranged as an opening is fixedly installed at the top of a second cover plate, the water inlet end of the first water suction pump (102) extends into the filter box (6), a filter screen (8) which is obliquely arranged is movably sleeved in the filter box (6), the right side of the filter box (6) is in sealing contact with a blocking plate (7), the blocking plate (7) is fastened on the right side of the filter box (6) in a threaded manner, rectangular pipes (15) with the right ends of blocking structures are fixedly arranged at the top of the left side and the bottom of the left side of the blocking plate (7), triangular scraping plates (14) are fixedly arranged at the bottom of the right side of the filter screen (8), rectangular rods (13) are fixedly arranged at the right sides of the triangular scraping plates (14) and the top of the right side of the filter screen (8), the two rectangular rods (13) are unequal in length, the rectangular rods (13) are slidably sleeved in the corresponding rectangular pipes (15), springs (16) are fixedly arranged between the right ends of the rectangular rods (13) and the inner walls of the right ends of the corresponding rectangular pipes (15), a connecting pipe (17) is arranged in the filter box (6), the right end of the connecting pipe (17) extends to the right side of the filter box (6), the blocking plate (7) is fixedly sleeved on the connecting pipe (17), the left side fixed mounting of closure plate (7) has collision pole (12), collision pole (12) and filter screen (8) cooperate, the top fixed mounting of rose box (6) has driving motor (10), the output shaft bottom of driving motor (10) extends to in rose box (6) and fixed mounting has eccentric wheel (11), the left side fixed mounting of filter screen (8) has fixed block (9), the left side of fixed block (9) is inlayed and is equipped with the ball, the right side and the ball rolling contact of eccentric wheel (11).

2. The oil drilling fluid recycling and cooling device of claim 1, wherein a first circular hole and a second circular hole are formed in the inner wall of the left side of the cooling box (101), the inner wall of the first circular hole is fixedly connected with the outer side of the probe of the temperature sensor (4), and the inner wall of the second circular hole is fixedly connected with the outer side of the water outlet pipe.

3. The petroleum drilling fluid recycling and cooling device according to claim 1, wherein a third circular hole is formed in the inner wall of the top of the filter box (6), a sealing bearing is fixedly sleeved in the third circular hole, and the inner side of an inner ring of the sealing bearing is fixedly connected with the outer side of an output shaft of the driving motor (10).

4. The oil drilling fluid recycling and cooling device according to claim 1, wherein a sealing rubber is fixedly bonded to the left side of the blocking plate (7), the left side of the sealing rubber is in close contact with the right side of the filter box (6), rectangular blocks (18) are fixedly mounted on the top of the left side and the bottom of the left side of the blocking plate (7), rectangular grooves are formed in the top of the right side and the bottom of the right side of the filter box (6), the outer sides of the rectangular blocks (18) are in movable contact with the inner walls of the corresponding rectangular grooves, threaded grooves are formed in the tops of the rectangular blocks (18) above the two rectangular blocks (18), T-shaped fastening bolts are sleeved in the threaded grooves, the tops of the T-shaped fastening bolts extend to the upper side of the filter box (6), and the filter box (6) is sleeved with the threaded grooves on the T-shaped fastening bolts.

5. The petroleum drilling fluid recycling and cooling device as claimed in claim 1, wherein the inner walls of the two rectangular pipes (15) at the sides far away from each other are fixedly provided with limiting blocks, the sides of the two rectangular rods (13) at the sides far away from each other are provided with limiting grooves, and the limiting blocks are connected with the corresponding limiting grooves in a sliding manner.

6. The petroleum drilling fluid recycling and cooling device according to claim 1, wherein the front side and the rear side of the filter screen (8) are respectively in movable contact with the front side inner wall and the rear side inner wall of the filter box (6), and the front side and the rear side of the triangular scraper (14) are respectively in movable contact with the front side inner wall and the rear side inner wall of the filter box (6).