Automatic cooling system of pump unit

Abstract

The utility model relates to the technical field of slurry pumps, in particular to an automatic cooling system of a pump set, which comprises a water tank, a slurry pump and a spraying water pump, the water tank is connected with the slurry pump through a return pipe, the water tank is connected with the spraying water pump, and a filter and a flow detector are connected between the water tank and the spraying water pump. According to the technical scheme, the residual amount of cooling liquid in the water tank can be monitored, a heat dissipation coil pipe is installed in the water tank, and the water tank and the heat dissipation coil pipe are both connected with the water storage tank, compared with the prior art, the technical scheme solves the problem that a piston and a cylinder sleeve are damaged due to the fact that the cooling liquid cannot be replaced in time after being reduced; and the problem that the piston and the cylinder sleeve are damaged due to the fact that the cooling liquid flow is reduced and blockage cannot be cleaned in time after silt blockage is solved, the problem that the piston and the cylinder sleeve are damaged due to the fact that cooling liquid is too high in temperature and cannot be cooled in time is solved, the service life of the piston and the cylinder sleeve is greatly prolonged, and the service life of the piston pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mud pumps, in particular to an automatic cooling system for a machine pump group. Background Art

[0002] The cooling system of the traditional mud pump can be simply divided into two types: electric spray system and mechanical spray system. The electric spray system is widely used in drilling operations due to its energy saving, low noise and high efficiency. The electric spray system includes: centrifugal spray pump, water tank, spray pipeline, pressure gauge, pressure sensor, etc. Its function is to flush and cool the cylinder liner and piston during the operation of the pump. With the development of technology, higher requirements are put forward for drilling operations, so a more automated, intelligent and highly integrated cooling system is needed for drilling operations.

[0003] The cooling system of a mud pump mostly uses water and coolant as the working medium. When necessary, coolant with rust inhibitor needs to be added. During the use of the mud pump, the cooling system of the mud pump often needs to be started before the mud pump. However, the working environment of the mud pump is mostly harsh, such as deserts and mountainous areas. During the process of spraying coolant to the mud pump, the cooling system will have the following problems: (i) volatilization causes a decrease in the coolant in the water tank; (ii) it is easy to carry mud and sand into the water tank, causing blockage; (iii) the coolant temperature in the water tank is too high after long-term circulation of the coolant. All of the above situations will lead to poor cooling effect of the mud pump. The cylinder liner and piston of the mud pump are wearing parts. The friction between the piston and cylinder liner will generate a lot of heat energy during use. If the above situation is not discovered in time, the cylinder liner and piston rubber parts will be quickly damaged, and the service life of the piston pump will be reduced.

[0004] Therefore, it is necessary to propose an automatic cooling system for the machine pump group to avoid damage to the cylinder liner and piston rubber parts and increase the service life of the piston pump. Utility Model Content

[0005] The utility model aims to solve the problem that the existing mud pump cooling system cannot automatically handle the deterioration of cooling effect and interruption of coolant, resulting in rapid damage to the cylinder liner and piston rubber parts, and now provides an automatic cooling system for the machine pump group.

[0006] The technical solution of the utility model is:

[0007] The automatic cooling system of the machine pump group includes a water tank, a mud pump and a spray water pump. The water tank and the mud pump are connected through a return pipe. The water tank is connected to the spray water pump and a filter and a flow detector are connected between the two. The water tank is equipped with a liquid level switch to monitor the remaining coolant in the water tank.

[0008] It also includes a water tank, a heat dissipation coil is installed in the water tank, the water tank and the heat dissipation coil are both connected to the water tank, the water tank is connected to a reversing valve and a cooling water pump, the reversing valve controls the connection and disconnection between the water tank and the water tank and the heat dissipation coil and the water tank, the heat dissipation coil is connected to a temperature control one-way valve, and the temperature control one-way valve is connected to the water tank and the heat dissipation coil at the same time;

[0009] It also includes a remote control box, which is connected to the liquid level switch, the reversing valve, the cooling water pump, the temperature control one-way valve, the spray water pump and the flow detector through electrical signals.

[0010] Furthermore, a tightening device is installed on the water tank, which locks the water tank into a sealed structure. The tightening device is a bolt, and the water tank is an open and close structure. The tightening device can close and lock the water tank to ensure the sealing of the water tank and prevent coolant leakage.

[0011] Furthermore, a triangular lifting ring is fixedly installed on the water tank to facilitate lifting the water tank by a crane.

[0012] Furthermore, a sewage outlet is provided at the bottom of the water tank, and the sewage outlet can discharge the sediment and coolant accumulated at the bottom of the water tank.

[0013] Furthermore, the reversing valve is a three-position three-way reversing valve.

[0014] Furthermore, the flow detector is an ultrasonic flow detector.

[0015] Furthermore, a float is provided in the water tank, and the float can be floated by the coolant in the water tank. The float is connected to a liquid level switch, and the height of the float in the water tank can provide a reference for the liquid level switch. When the coolant cannot fill the water tank, the liquid level switch will send a signal to the remote control box to start the cooling water pump and introduce coolant into the water tank. When the float floats to the top and reaches the set upper limit value, the cooling water pump will be stopped.

[0016] In the automatic cooling system of the machine pump group of the utility model, the liquid level switch can monitor the remaining coolant in the water tank in real time. When the coolant is reduced with the circulation, the coolant level in the water tank will drop. After monitoring, the liquid level switch will send a signal to the remote control box, and the remote control box controls the cooling water pump and the reversing valve to pass the coolant in the water tank into the water tank to ensure the remaining coolant in the water tank; the radiating coil is used to cool the coolant in the water tank. When the coolant in the radiating coil is overheated, the temperature control one-way valve sends a signal to the remote control box, and the remote control box turns on the cooling water pump and controls the reversing valve to connect the water tank with the radiating coil, so that the coolant in the water tank is passed into the radiating coil, and the original coolant in the radiating coil flows back to the water tank, realizing the radiating coil. The filter is responsible for filtering the mud and impurities in the water tank. When the filter screen in the filter is blocked due to long-term use, the flow detector can monitor the reduction of coolant flowing in the pipeline in real time, thereby sending a signal to the remote control box. The remote control box can issue a warning to remind the staff to replace the filter screen in the filter in time. Compared with the traditional technology, this technical solution solves the problem of damage to the piston and cylinder liner due to the failure to replace the filter screen in time after the coolant is reduced, and also solves the problem of damage to the piston and cylinder liner due to the failure to clear the blockage in time after the coolant flow is reduced after the mud is blocked, and also solves the problem of damage to the piston and cylinder liner due to the failure to cool down the coolant temperature in time due to excessive temperature, which greatly extends the service life of the piston and cylinder liner, and improves the service life of the piston pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural reference diagram of the utility model.

[0018] Figure numerals: 1. Remote control box; 2. Liquid level switch; 3. Water tank; 4. Return pipe; 5. Tightening device; 6. Triangular lifting ring; 7. Cooling water pump; 8. Reversing valve; 9. Radiating coil; 10. Drain port; 11. Temperature control one-way valve; 12. Filter; 13. Flow detector; 14. Spray water pump; 15. Water storage tank; 16. Mud pump; 17. Float. DETAILED DESCRIPTION

[0019] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0020] Embodiment 1:

[0021] like Figure 1As shown, this embodiment provides an automatic cooling system for a machine pump group, including a water tank 3, a mud pump 16 and a spray water pump 14, the water tank 3 and the mud pump 16 are connected by bolts and flanges through a return pipe 4, the water tank 3 and the spray water pump 14 are connected by a pipeline, and a filter 12 and a flow detector 13 are connected between the two, the water tank 3 is equipped with a liquid level switch 2, which can monitor the remaining coolant in the water tank 3, and also includes a water storage tank 15, a heat dissipation coil 9 is installed in the water tank 3, the water tank 3 and the heat dissipation coil 9 are connected to the water storage tank 15 by a pipeline, and the water storage tank 15 is fixed with screws. A reversing valve 8 and a cooling water pump 7, wherein the reversing valve 8 controls the on-off connection between the water tank 3 and the water storage tank 15 and the on-off connection between the heat dissipation coil 9 and the water storage tank 15. The heat dissipation coil 9 is connected to a temperature control one-way valve 11 through a flange and bolts. The temperature control one-way valve 11 is connected to the water storage tank 15 and the heat dissipation coil 9 at the same time. It also includes a remote control box 1, which is connected to the liquid level switch 2, the reversing valve 8, the cooling water pump 7, the temperature control one-way valve 11, the spray water pump 14 and the flow detector 13 at the same time through electrical signals. The electrical signals can be transmitted using lines or remote wireless signal transmission.

[0022] Preferably, a tightening device 5 is installed on the water tank 3, and the tightening device 5 locks the water tank 3 into a sealing structure. The tightening device 5 is a bolt, and the water tank 3 is an opening and closing structure. The tightening device 5 can close and lock the water tank 3 to ensure the sealing of the water tank 3 and prevent leakage of the coolant.

[0023] Preferably, a triangular lifting ring 6 is welded and installed on the water tank 3 to facilitate lifting the water tank 3 by a crane.

[0024] Preferably, a sewage outlet 10 is provided at the bottom of the water tank 3 , and the sewage outlet 10 can discharge the sediment accumulated at the bottom of the water tank 3 and the waste coolant.

[0025] Preferably, the reversing valve 8 is a three-position three-way reversing valve 8 .

[0026] Preferably, the flow detector 13 is an ultrasonic flow detector 13 .

[0027] Preferably, a float 17 is provided in the water tank 3, and the float 17 can be floated by the coolant in the water tank 3. The float 17 is connected to the liquid level switch 2. The height of the float 17 in the water tank 3 can provide a reference for the liquid level switch 2. When the coolant cannot fill the water tank 3, the liquid level switch 2 will send a signal to the remote control box 1 to start the cooling water pump 7 and introduce coolant into the water tank 3. When the float 17 floats to the top and reaches the set upper limit value, the cooling water pump 7 is stopped.

[0028] During operation, the liquid level switch 2 can monitor the remaining coolant in the water tank 3 in real time. When the coolant is reduced with the circulation, the coolant level in the water tank 3 will drop, and the float 17 will move down. After monitoring, the liquid level switch 2 will send a signal to the remote control box 1, and the remote control box 1 will start the cooling water pump 7 and control the reversing valve 8 to pass the coolant in the water tank 15 into the water tank 3 to ensure the remaining coolant in the water tank 3; the radiating coil 9 is used to cool the coolant in the water tank 3. When the coolant in the radiating coil 9 is overheated, the temperature control one-way valve 11 sends a signal to the remote control box 1, and the remote control box 1 turns on the cooling water pump 7 and controls the reversing valve 8 to connect the water tank 15 with the radiating coil 9. The coolant in the water tank 15 is passed into the radiating coil 9, and the original coolant in the radiating coil 9 flows back into the water tank 15 to achieve cooling of the radiating coil 9. The coolant passes through the reflux pipe 4 refluxes into the water tank, and brings mud and sand impurities into the water tank. Before the coolant passes through the spray water pump 14 again from the water tank, the filter 12 is responsible for filtering the mud and sand impurities in the water tank 3. When the filter screen in the filter 12 is blocked due to long-term use, the flow detector 13 can monitor the reduction of coolant flowing in the pipeline in real time, thereby sending a signal to the remote control box 1. The remote control box 1 can issue a warning to remind the staff to replace the filter screen in the filter 12 in time. This technical solution solves the problem of damage to the piston and cylinder liner caused by failure to replace the filter screen in time after the coolant is reduced, and also solves the problem of damage to the piston and cylinder liner caused by failure to clear the blockage in time after the coolant flow is reduced after the silt is blocked, and also solves the problem of damage to the piston and cylinder liner caused by failure to cool down the coolant temperature in time due to excessive temperature, which greatly extends the service life of the piston and cylinder liner and improves the service life of the piston pump.

[0029] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. An automatic cooling system for a pump unit, comprising a water tank (3), a mud pump (16) and a spray water pump (14), characterized in that: The water tank (3) and the mud pump (16) are connected via a return pipe (4); the water tank (3) is connected to the spray water pump (14) and a filter (12) and a flow detector (13) are connected between the two; the water tank (3) is equipped with a liquid level switch (2) for monitoring the remaining amount of coolant in the water tank (3); It also includes a water tank (15), a heat dissipation coil (9) installed in the water tank (3), the water tank (3) and the heat dissipation coil (9) are both connected to the water tank (15), the water tank (15) is connected to a reversing valve (8) and a cooling water pump (7), the reversing valve (8) controls the connection and disconnection between the water tank (3) and the water tank (15) and the connection and disconnection between the heat dissipation coil (9) and the water tank (15), the heat dissipation coil (9) is connected to a temperature control one-way valve (11), and the temperature control one-way valve (11) is simultaneously connected to the water tank (15) and the heat dissipation coil (9); It also comprises a remote control box (1), wherein the remote control box (1) is simultaneously connected to the liquid level switch (2), the reversing valve (8), the cooling water pump (7), the temperature control non-return valve (11), the spray water pump (14) and the flow detector (13) through electrical signals.

2. The automatic cooling system for the pump unit according to claim 1 is characterized in that: A tightening device (5) is installed on the water tank (3), and the tightening device (5) locks the water tank (3) into a sealing structure. The tightening device (5) is a bolt.

3. The automatic cooling system for the machine pump group according to claim 1 is characterized in that: A triangular lifting ring (6) is fixedly mounted on the water tank (3) to facilitate lifting the water tank (3) by a crane.

4. The automatic cooling system for the pump unit according to claim 1 is characterized in that: A sewage outlet (10) is provided at the bottom of the water tank (3), and the sewage outlet (10) can discharge the sediment and coolant accumulated at the bottom of the water tank (3).

5. The automatic cooling system for the machine pump group according to claim 1 is characterized in that: The reversing valve (8) is a three-position, three-way reversing valve.

6. The automatic cooling system for the pump unit according to claim 1 is characterized in that: The flow detector (13) is an ultrasonic flow detector.

7. The automatic cooling system for the machine pump group according to claim 1 is characterized in that: A float ball (17) is provided in the water tank (3), and the float ball (17) can be floated by the coolant in the water tank (3). The float ball (17) is connected to the liquid level switch (2).

Images