CN106440402A - Solar intelligent heating overhead oil tank of petroleum drilling machine - Google Patents

Abstract

The invention discloses an elevated oil tank with solar energy intelligent heating for an oil drilling rig, which includes a diesel supply part installed on a first skid base and a solar-electric heating part arranged on a second skid base, and the two parts are independently skidded. The structure of the solar-electric heating part is that it includes the PLC control box, the heat preservation water tank, the electric water pump group and the solar heat collector arranged in the second skid seat. The heating coil in the diesel tank and the elevated oil tank is connected; the heat preservation water tank and the solar hot water of the solar collector form a circulating hot water circuit, and at the same time, a thermometer W2 is installed on the connecting pipe between the hot water outlet of the solar collector and the heat preservation water tank; A thermometer W1 is installed in the diesel tank; the thermometer W1, the thermometer W2 and the electric heater are all connected to the PLC control box. The device of the present invention is modularized and independently skidded, and the whole is convenient to disassemble and transport, safe and reliable, and saves energy.

Description

Oil Rig Solar Smart Heating Elevated Oil Tanks

technical field

The invention belongs to the technical field of electromechanical equipment, and relates to an elevated oil tank heated by solar energy intelligently for an oil drilling rig.

Background technique

The elevated oil tank of the oil drilling rig is an important part of the chain parallel drilling rig, which mainly provides fuel for the diesel engine to ensure the normal progress of the drilling process. For cold areas, due to the influence of low ambient temperature, the viscosity of diesel oil increases, resulting in poor fluidity of diesel oil. In extreme cases, it cannot be smoothly pumped out from the oil tank to supply the diesel engine, which directly affects the operation of the diesel engine and affects the drilling process.

Existing diesel tanks in alpine regions use low-temperature diesel oil or use heating boilers to heat the diesel tanks, which have the disadvantages of large energy consumption and high cost. The alpine region has the characteristics of long sunshine time and strong solar radiation. Using solar energy to heat the diesel tank, combining intelligent control technology, heat pump technology and solar heat utilization technology, the solar heat collector can continue to intelligently heat the diesel tank through the heat pump. It saves secondary energy, is safe and reliable, reduces labor intensity, reduces carbon emissions to the environment, and has a huge space for energy-saving benefits.

Contents of the invention

The object of the present invention is to provide an elevated oil tank heated by solar energy intelligently for an oil drilling rig, which can efficiently utilize solar energy intelligently to heat diesel oil tanks, does not require special personnel to be on duty, and hardly affects the natural living environment.

The technical solution adopted in the present invention is an oil drilling rig solar energy intelligent heating elevated oil tank, including a diesel supply part installed on the first skid base and a solar-electric heating part installed on the second skid base, two parts each independently into a pry,

The structure of the solar energy-electric heating part is, including the PLC control box, the heat preservation water tank, the electric water pump group and the solar heat collector arranged in the second skid seat, the electric heater is arranged in the heat preservation water tank, and the heat preservation water tank is connected with the electric water pump group The heating coil in the diesel tank and the elevated oil tank is connected; the heat preservation water tank and the solar hot water of the solar collector form a circulating hot water circuit, and at the same time, a thermometer W2 is installed on the connecting pipe between the hot water outlet of the solar collector and the heat preservation water tank; A thermometer W1 is installed in the diesel tank; the thermometer W1, the thermometer W2 and the electric heater are all connected to the PLC control box.

The oil drilling rig solar energy intelligent heating elevated oil tank of the present invention is also characterized in that:

Each heat collecting tube of the solar heat collector is placed horizontally along the skid base, the installation inclination angle of the solar heat collector is 50°, and the series connection method is adopted.

The structure of the diesel supply part is, including the oil transfer tank, the diesel tank and the elevated oil tank. In the working state, the elevated oil tank is fixed on the top of the diesel tank; a set of heating heaters are respectively arranged in the inner cavity of the diesel tank and the elevated oil tank. Coil, two sets of heating coils adopt spiral fin structure; one end of the diesel tank is provided with a fuel transfer tank and a control operation room; the diesel tank and the elevated oil tank are also connected to the outside with a refueling gun.

Diesel tanks, elevated oil tanks, and thermal insulation water tanks are all covered with thermal insulation layers.

The oil transfer tank is connected with the diesel tank through the ball valve F1, the filter G1, the flow meter L1, and the ball valve F2. An electric oil pump group is arranged in parallel on the pipeline between the flow meter L1 and the ball valve F2; the electric oil pump group includes two identical electric oil pumps , the inlet end of the first electric oil pump is provided with a filter G3 and the outlet end is provided with a ball valve F3; the inlet end of the second electric oil pump is provided with a filter G4 and the outlet end is provided with a ball valve F4; the ball valve F3 and The outlet end of the ball valve F4 is connected to the diesel tank through the ball valve F5 at the same time, and the outlet ends of the ball valve F3 and the ball valve F4 are connected to the elevated oil tank through the ball valve F6 at the same time; the overflow pipeline and the oil discharge pipeline are connected between the diesel tank and the elevated oil tank. Among them, a ball valve F7 is installed in the oil discharge pipeline;

The first set of heating coils is installed in the diesel tank. The water outlet of the first set of heating coils is connected with the water inlet of the heat preservation water tank through the ball valve F14 and the ball valve F16. F15 is connected back to the water return port of the first set of heating coil;

A second set of heating coils is installed in the elevated oil tank. The water outlet of the second set of heating coils is connected to the water inlet of the heat preservation water tank through the ball valve F22 and the ball valve F16. The ball valve F23 is connected back to the water return port of the second heating coil;

The electric water pump set includes two electric water pumps arranged side by side. One electric water pump has a ball valve F20 at its inlet and a ball valve F18 at its outlet; the other electric water pump has a ball valve F21 at its inlet and a ball valve F19 at its outlet; the two electric water pumps Each is connected to the PLC control box for control;

The diesel tank is connected to the input end of the filter G2 through the ball valve F8, the elevated oil tank is connected to the input end of the filter G2 through the ball valve F9, and the output end of the filter G2 is connected to the fuel gun through the ball valve F11.

There are three shunts on the pipeline between filter G2 and ball valve F11, the first way is to discharge oil directly through ball valve F10, the second way is connected to the outside through ball valve F13 and flowmeter L2, and the third way is through ball valve F12 and flowmeter L3 external connection.

The beneficial effect of the invention is that the solar heat collector in the alpine zone is used as the main heat supply energy device, the electric heating is used as the supplementary heat mode, and the auxiliary heating system supplements the heat load in bad weather. The spiral fin heat exchanger with high heat exchange efficiency is used to heat the diesel tank with forced circulation, and the solar energy is efficiently and reasonably used. The control system uses PLC as the core controller, intelligently controls the heat load source, and can flexibly set the water temperature and heating time according to different situations, which can meet the needs of various weather conditions. The entire intelligent heating system makes the diesel in the diesel tank fully and evenly heated, and the heating performance is less affected by the drop of outdoor temperature.

At the same time, the device of the present invention adopts an integral skid-mounted structure, and integrates solar collectors, heat preservation water tanks, electric water pumps, and PLC control boxes on the skid as a whole. When the diesel tank is moved, the elevated oil tank can be placed on the The end of the skid seat of the diesel tank is transported together with the diesel tank to reduce on-site transportation work.

Description of drawings

Fig. 1 is the schematic diagram of pipeline connection and working principle of the present invention;

Fig. 2 is a structural front view of the present invention;

Fig. 3 is a structural side view of the present invention;

Fig. 4 is the structural drawing of the present invention;

Fig. 5 is a schematic diagram of the placement structure of the diesel tank and the elevated oil tank in the transportation state in the present invention.

In the figure, 1. Refueling tank, 2. Refueling gun, 3. PLC control box, 4. Electric oil pump group, 5. Diesel tank, 6. Heating coil, 7. Heat preservation water tank, 8. Electric heater, 9. Solar energy Heat collector, 10. Elevated oil tank, 11. Electric water pump unit, 12. Insulation layer,

In addition, L1, L2, L3 are flowmeters, W1, W2 are thermometers, G1, G2, G3, G4 are filters, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10 , F11, F12, F13, F, F15, F16, F17, F18, F19, F20, F21, F22, F23 are ball valves.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the structure of the device of the present invention is to include a diesel supply part installed on the first skid base and a solar-electric heating part arranged on the second skid base , the two parts are independently skidded, easy to transport separately,

The structure of the diesel supply part is to include the oil transfer tank 1, the diesel tank 5 and the elevated oil tank 10. During the working state, the elevated oil tank 10 is fixed on the top of the diesel tank 5, and the two are fixed by connecting pins; A set of heating coils 6 are arranged in the inner cavity of 5 and the inner cavity of the elevated oil tank 10 respectively. Both sets of heating coils 6 adopt a spiral fin structure with high heat exchange efficiency; one end of the diesel tank 5 is equipped with an oil transfer tank 1 And the control operation room, two filters (G1, G2, G3, G4), three flow meters (L1, L2, L3), electric oil pump unit 4 and corresponding ball valves are installed in the control operation room to control the Diesel oil is added to the diesel tank 5 and the elevated oil tank 10 from the outside; the diesel tank 5 and the elevated oil tank 10 are also connected to the outside with a refueling gun 2;

Referring to Fig. 3 and Fig. 4, the structure of the solar energy-electric heating part is, including the PLC control box 3, the heat preservation water tank 7, the electric water pump group 11 and the solar heat collector 9 arranged in the second skid seat, and the heat preservation water tank 7 is configured There is an electric heater 8, and the electric heater 8 is used to provide hot water when there is no sunlight. The heat preservation water tank 7 communicates with the heating coil 6 in the diesel tank 5 and the elevated oil tank 10 through the electric water pump group 11, and is opened and closed Different ball valves realize that the electric water pump group 11 provides hot water to the heating coil 6 in the diesel tank 5 and the elevated oil tank 10 respectively or simultaneously; The installation inclination angle of 9 is about 50°, and the connection method of series close arrangement is adopted; the thermal water tank 7 and the solar hot water of the solar thermal collector 9 form a circulating hot water circuit, and at the same time, the hot water outlet of the solar thermal collector 9 is connected with the thermal thermal water tank 7 A thermometer W2 is installed on the pipeline to measure the outlet water temperature of the solar collector 9; a thermometer W1 is installed in the diesel tank 5 to measure the temperature of the diesel in the diesel tank 5; the thermometer W1, the thermometer W2 and the electric heater 8 are all It is controlled and connected with the PLC control box 3, and the PLC control box 3 judges the heating time according to the water temperature data measured by the thermometer W1 and the thermometer W2 and intelligently selects the heat source (that is, chooses solar heating water or electric heating water);

The diesel oil tank 5, the elevated oil tank 10, the thermal water tank 7 (and the exposed pipeline) are all covered with a thickened thermal insulation layer 12, so as to realize efficient utilization of solar energy.

The specific connection relationship of the above-mentioned components is:

The oil transfer tank 1 communicates with the diesel tank 5 through the ball valve F1, the filter G1, the flow meter L1, and the ball valve F2, and the electric oil pump group 4 is arranged in parallel on the pipeline between the flow meter L1 and the ball valve F2; the electric oil pump group 4 includes two The same electric oil pumps start at the same time or back up each other according to the needs. The inlet end of the first electric oil pump is provided with a filter G3, and the outlet end is provided with a ball valve F3; the inlet end of the second electric oil pump is provided with a filter. G4, the outlet end is provided with a ball valve F4; the outlet ends of the ball valve F3 and the ball valve F4 communicate with the diesel tank 5 through the ball valve F5 at the same time, and the outlet ends of the ball valve F3 and the ball valve F4 communicate with the elevated oil tank 10 through the ball valve F6 at the same time; the diesel tank 5 An overflow pipeline and an oil discharge pipeline are communicated with the elevated oil tank 10, wherein a ball valve F7 is installed in the oil discharge pipeline;

The first set of heating coil 6 is arranged in the diesel tank 5, the water outlet of the first heating coil 6 communicates with the water inlet of the heat preservation water tank 7 through the ball valve F14, the ball valve F16, and the water outlet of the heat preservation water tank 7 passes through the ball valve F17, The electric water pump unit 11 and the ball valve F15 are connected back to the water return port of the first heating coil 6;

The elevated oil tank 10 is provided with a second heating coil 6, the water outlet of the second heating coil 6 communicates with the water inlet of the heat preservation water tank 7 through the ball valve F22 and the ball valve F16, and the water outlet of the heat preservation water tank 7 passes through the ball valve F17 , The electric water pump group 11, the ball valve F23 is connected back to the water return port of the second heating coil 6;

The electric water pump group 11 includes two electric water pumps arranged side by side, which can be started at the same time or as backup for each other according to the needs. The inlet of one electric water pump is provided with ball valve F20 and the outlet is provided with ball valve F18; the inlet of the other electric water pump is provided with ball valve F21 and the outlet A ball valve F19 is provided; the two electric water pumps are respectively connected to the PLC control box 3 for control, and work simultaneously or one of them works alone according to needs;

The diesel tank 5 is connected to the input end of the filter G2 through the ball valve F8, the elevated oil tank 10 is connected to the input end of the filter G2 through the ball valve F9, and the output end of the filter G2 is connected to the fueling gun 2 through the ball valve F11. The model of the fueling gun 2 depends on the user It needs to be configured at the end of the outlet pipeline; in addition, there are three shunts on the pipeline between the filter G2 and the ball valve F11, the first way is to discharge oil directly through the ball valve F10, and the second way is through the ball valve F13 and the flow meter L2 to the outside connection, and the third way is externally connected through ball valve F12 and flow meter L3.

As shown in Figure 5, when moving and transporting, first disassemble the connecting pipeline between the two skid parts, then shift the elevated oil tank 10 to the empty position at the front end of the diesel tank 5, and place the diesel tank 5 and the elevated oil tank 10 The same skid is used for transportation; in addition, the PLC control box 3, the heat preservation water tank 7, the electric water pump unit 11 and the solar heat collector 9 in the second skid are transported together as a whole.

The working principle of the present invention is,

1) When the tanker needs to unload oil from the oil tank 1 to the diesel tank 5, if the two electric oil pumps in the electric oil pump group 4 are used at the same time, close the ball valves F2 and F6, open the ball valves F1, F3, F4, and F5, and open them at the same time The motors of the two electric oil pumps are metered through the flow meter L1;

2) When the diesel tank 5 is required to send oil to the elevated oil tank 10, open the ball valve F2 and the ball valve F6, close the ball valve F5, the ball valve F1 or the ball valve corresponding to the electric oil pump (single-pump pumping), and turn on the corresponding electric oil pump motor;

3) When the elevated oil tank 10 needs to send oil to the outside, open the ball valve F9, close the ball valve F8, and then pass the ball valve F12, the ball valve F13 to be measured by the flow meters L3 and L2 alone, or open the ball valve F11 and directly measure by the fuel gun 2;

4) When it is necessary to discharge oil from the elevated oil tank 10 to the diesel tank 5, open the ball valve F7;

5) Open ball valve F8 and ball valve F10 when diesel oil tank 5 is required to send oil to the outside.

The intelligent control principle of PLC control box 3 among the present invention is:

1) When the thermometer W1 shows that the temperature is lower than 5°C, start the water pump motor in the electric water pump set 11 to work, and when the thermometer W1 shows that the temperature is higher than 25°C, automatically shut down the water pump motor in the electric water pump set 11.

2) When the thermometer W2 shows that the temperature is lower than 10°C, start the electric heater 8 to work, and when the thermometer W2 shows that the temperature is higher than 30°C, turn off the electric heater 8 automatically.

The advantages of the present invention are:

1) The circulating medium in the thermal insulation water tank 7 is heated by solar energy, and the heating coil 6 adopts a heat exchanger with a spiral finned tube structure to force circulation to heat the diesel oil in the diesel tank 5 and the elevated oil tank 10, which has the advantages of sufficient and uniform heating ;

2) The dual complementary intelligent control of solar energy and electric heating is adopted, and the PLC control box 3 with PLC as the core has the functions of self-controlled temperature difference heat collection cycle, self-controlled constant temperature heat exchange cycle, and self-controlled dual energy conversion functions;

3) Modular design is adopted, and the solar heat collection device is independently skidded, which is convenient for disassembly and assembly, and convenient for overall transportation;

4) The diesel supply part is completely isolated from the solar-electric heating part, and the two are only connected by pipelines. There are no safety problems such as corrosion, leakage, and deflagration of the diesel tank 5 or the elevated oil tank 10. There is no potential safety hazard, and the safety factor is greatly improved. .

Claims (6)

1. a kind of oil-well rig solar energy intelligent heating high racking oil tank, it is characterised in that：Including in first skid Diesel oil supply section and the solar energy-electric heating part being arranged in second skid, two parts each independently become sled,

The structure of solar energy-electric heating part is, including be arranged in the second skid PLC control cabinet (3), attemperater (7), electricity Dynamic water pump group (11) and solar thermal collector (9), is configured with electric heater (8) in attemperater (7), and attemperater (7) leads to Cross electric water pump group (11) to connect with the heating coil (6) in diesel fuel tank (5) and high racking oil tank (10)；Attemperater (7) with too Sun can the solar water of heat collector (9) constitute circulating hot water loop, meanwhile, solar thermal collector (9) hot water outlet and insulation On water tank (7) connecting line, thermometer W2 is installed；In diesel fuel tank (5), thermometer W1 is installed；Thermometer W1, thermometer W2 and Electric heater (8) is all connected with PLC control cabinet (3) control.

2. oil-well rig solar energy intelligent heating high racking oil tank according to claim 1, it is characterised in that：The described sun Each thermal-collecting tube of energy heat collector (9) is laterally disposed along skid, and the mounted angle of solar thermal collector (9) is 50 °, using series connection Solid matter connected mode.

3. oil-well rig solar energy intelligent heating high racking oil tank according to claim 1, it is characterised in that：Described diesel oil The structure of supply section is, including turning fuel tank (1), diesel fuel tank (5) and high racking oil tank (10), during working condition, high racking oil tank (10) top of diesel fuel tank (5) is fixed on；It is each configured with diesel fuel tank (5) inner chamber and in high racking oil tank (10) inner chamber a set of Heating coil (6), two sets of heating coils (6) are all using helical fin formula structure；Diesel fuel tank (5) one end room is provided with and turns fuel tank (1) and between control operation；Diesel fuel tank (5) and high racking oil tank (10) are also externally communicated with nozzle (2) jointly.

4. oil-well rig solar energy intelligent heating high racking oil tank according to claim 3, it is characterised in that：Described diesel oil Tank (5), high racking oil tank (10), attemperater (7) are all coated with heat-insulation layer (12).

5. oil-well rig solar energy intelligent heating high racking oil tank according to claim 3, it is characterised in that：Described turns oil Tank (1) is connected with diesel fuel tank (5) by ball valve F1, filter G1, effusion meter L1, ball valve F2, between effusion meter L1, ball valve F2 Electric oil pump group (4) is set side by side with pipeline；Electric oil pump group (4) includes two same electric oil pumps, and first electronic The entrance point of oil pump is provided with a filter G3, the port of export and is provided with a ball valve F3；The entrance point of second electric oil pump It is provided with a filter G4, the port of export and is provided with a ball valve F4；The port of export of ball valve F3 and ball valve F4 is while pass through ball valve F5 is connected with diesel fuel tank (5), and ball valve F3 is connected with high racking oil tank (10) by ball valve F6 simultaneously with the port of export of ball valve F4；Diesel oil Overflow line being communicated with and pipeline of draining the oil between tank (5) and high racking oil tank (10), in pipeline of wherein draining the oil, ball valve F7 is installed；

First set heating coil (6) is provided with diesel fuel tank (5), and the outlet of the first set heating coil (6) passes through ball valve F14, ball valve F16 are connected with the water inlet of attemperater (7), and the outlet of attemperater (7) passes through ball valve F17, electric water pump Group (11), ball valve F15 take back the water return outlet of first set heating coil (6)；

Second set of heating coil (6) is provided with high racking oil tank (10), and the outlet of second set of heating coil (6) passes through ball valve F22, ball valve F16 are connected with the water inlet of attemperater (7), and the outlet of attemperater (7) passes through ball valve F17, electric water pump Group (11), ball valve F23 take back the water return outlet of second set of heating coil (6)；

Electric water pump group (11) includes two electric water pumps being set up in parallel, the import of an electric water pump be provided with ball valve F20, Outlet is provided with ball valve F18；The import of another electric water pump is provided with ball valve F21, outlet and is provided with ball valve F19；This two Electric water pump is each connected with PLC control cabinet (3) control；

Diesel fuel tank (5) is connected with filter G2 input by ball valve F8, and high racking oil tank (10) passes through ball valve F9 and filter G2 Input is connected, and filter G2 outfan is connected with nozzle (2) by ball valve F11.

6. oil-well rig solar energy intelligent heating high racking oil tank according to claim 5, it is characterised in that：Described filtration Three branches are also had on pipeline between device G2 and ball valve F11, and the first via is directly drained the oil by ball valve F10, the second tunnel passes through Ball valve F13 and effusion meter L2 external connection, the 3rd tunnel is by ball valve F12 and effusion meter L3 external connection.