CN211525226U - Dual-mode oil supply loop for fracturing truck - Google Patents
Dual-mode oil supply loop for fracturing truck Download PDFInfo
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- CN211525226U CN211525226U CN201922349783.5U CN201922349783U CN211525226U CN 211525226 U CN211525226 U CN 211525226U CN 201922349783 U CN201922349783 U CN 201922349783U CN 211525226 U CN211525226 U CN 211525226U
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Abstract
The utility model discloses a dual-mode oil supply loop for a fracturing truck, which comprises an auxiliary oil tank, wherein the auxiliary oil tank is communicated with a primary oil tank through a ball valve I and a ball valve II, and the primary oil tank is connected with a check valve I and a ball valve III in sequence and then is connected to an oil suction port A; the external oil supply is connected to the quick connector II at the port C, and is connected to an oil suction port A of the vehicle engine after being sequentially connected with a fuel filter, a buffer tank and a ball valve IV; an oil return port B of the vehicle engine is connected with a quick connector I at an oil return port D for supplying oil outside after being connected with a one-way valve II, an outlet of the one-way valve II is connected with an outlet of a fuel filter after being connected with a ball valve V, and an outlet of the fuel filter is connected with the upper part of a shell of an auxiliary oil tank after being connected with a ball valve VI; the outlet of the one-way valve II is connected with a branch line to be connected to a pipeline between the ball valve I and the ball valve II, fuel oil required by the vehicle-mounted engine can be supplied through the auxiliary fuel tank and the original vehicle fuel tank, and external fuel supply can be realized through switching the flow.
Description
Technical Field
The utility model belongs to the technical field of oil field fracturing operation equipment, a double mode fuel feeding return circuit for fracturing truck is related to.
Background
During the operation of the fracturing truck, because the operation time is long, the oil consumption of a trolley engine is large, 2 large diesel tanks are usually hung on a chassis of the fracturing truck, because the operation process is unattended, a blind area exists in monitoring, potential safety hazards such as easy leakage and ignition exist in the large diesel tanks, and meanwhile, after the fracturing truck continuously operates for 2-3 hours, the diesel tanks are required to be filled with oil regularly, so that the labor intensity of site construction is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dual mode fuel feeding return circuit for fracturing truck has solved the fracturing truck continuity of operation who exists among the prior art and need regularly fill up oil for the diesel tank, has increased site operation's intensity of labour to and the problem that the large capacity fuel has the potential safety hazard during the operation of fracturing truck.
The technical scheme adopted by the utility model is that the dual-mode oil supply loop for the fracturing truck comprises an auxiliary oil tank, wherein the auxiliary oil tank is communicated with a crude oil tank through a ball valve I and a ball valve II, and the crude oil tank is connected with an oil suction port A after being sequentially connected with a one-way valve I and a ball valve III; the external oil supply is connected to the quick connector II at the port C, and is connected to an oil suction port A of the vehicle engine after being sequentially connected with a fuel filter, a buffer tank and a ball valve IV; an oil return port B of the vehicle engine is connected with a quick connector I at an oil return port D for supplying oil outside after being connected with a one-way valve II, an outlet of the one-way valve II is connected with an outlet of a fuel filter after being connected with a ball valve V, and an outlet of the fuel filter is connected with the upper part of a shell of an auxiliary oil tank after being connected with a ball valve VI; the outlet of the one-way valve II is connected with a branch line on a pipeline between the ball valve I and the ball valve II.
The utility model discloses a characteristics still lie in:
the buffer tank has a buffer volume of 10L.
The ball valve I, the ball valve II, the ball valve III, the ball valve IV, the ball valve V and the ball valve VI are manual ball valves or electric ball valves.
The opening pressure of the check valve I is 0.2 bar.
The buffer tank is connected with a pressure gauge.
The utility model has the advantages that: the trolley diesel engine can carry out single-vehicle operation in a traditional oil absorption mode of a diesel tank per se; also can be through outer fuel feeding oil inlet C, through the fuel feeding for ride diesel engine oil suction opening such as filter, buffer tank, two kinds of modes can switch at any time according to fracturing truck operation operating mode, and two kinds of operation modes are relatively independent, and it is convenient to switch, and outer fuel feeding operation mode can the on-the-spot working strength who refuels of greatly reduced, the potential safety hazard that large capacity fuel exists when having reduced fracturing truck operation simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a dual-mode oil supply circuit for a fracturing truck according to the present invention.
In the figure, 1 is an auxiliary oil tank, 2 is a ball valve I, 3 is a ball valve II, 4 is a raw vehicle oil tank, 5 is a one-way valve I, 6 is a ball valve III, 7 is a ball valve IV, 8 is a buffer tank, 9 is a one-way valve II, 10 is a ball valve V, 11 is a ball valve VI, 12 is a quick connector I, 13 is a quick connector II, 14 is a fuel filter.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a dual mode fuel feeding return circuit for fracturing unit, as shown in figure 1, a dual mode fuel feeding return circuit for fracturing unit, including auxiliary fuel tank 1, the auxiliary fuel tank 1 communicates with the former oil tank 4 through ball valve I2 and ball valve II 3, the former oil tank 4 connects with check valve I5 and ball valve III 6 in proper order and then connects with the oil suction port A; the external oil supply is connected to a quick connector II 13 at the port C, and is connected to an oil suction port A of the vehicle engine after being sequentially connected with a fuel filter 14, a buffer tank 8 and a ball valve IV 7; an oil return port B of the vehicle engine is connected with a one-way valve II 9 and then connected with a quick connector I12 at an oil return port D for supplying oil outside, an outlet of the one-way valve II 9 is connected with a ball valve V10 and then connected with an outlet of a fuel filter 14, and an outlet of the fuel filter 14 is connected with the upper part of a shell of the auxiliary oil tank 1 after being connected with a ball valve VI 11; the outlet of the one-way valve II 9 is connected with a branch line on a pipeline between the ball valve I2 and the ball valve II 3.
The buffer tank 8 has a buffer capacity of 10L, and buffers the shortage of oil supply due to the load fluctuation.
The ball valves I2, II 3, III 6, IV 7, V10 and VI 11 are manual or electric ball valves, and can complete manual or automatic switching between oil supply to the oil tank and external oil supply.
The opening pressure of the check valve I5 is 0.2bar, and the oil absorption negative pressure cannot be too large.
The buffer tank 8 is connected with a pressure gauge.
The utility model relates to a double mode fuel feeding circuit for fracturing unit truck, its theory of operation as follows:
the oil supply loop has two modes for supplying oil, when the oil is supplied by adopting an oil tank of the self-priming type, the ball valve IV 7 is closed, the ball valve I2, the ball valve II 3, the ball valve IV 11 and the ball valve V10 are opened, oil is injected into the auxiliary oil tank 1 and the original vehicle oil tank 4, and the vehicle platform engine performs oil absorption work in a self-priming mode. When external oil supply is adopted, the ball valve III 6, the ball valve IV 11 and the ball valve V10 are closed, the ball valve IV 7 is opened, an external oil supply oil inlet is connected with the quick connector II 13, an external oil supply oil return opening is connected with the quick connector I12, external oil supply enters an oil suction opening of the vehicle platform engine through the fuel filter 14, the buffer tank 8 and the ball valve IV 7, the external oil supply is fuel with pressure, the buffer tank 8 is provided with a pressure gauge, and the oil pressure and the flow of the oil pump for external oil supply are controlled to meet the engine requirements by monitoring the oil pressure of the fuel and controlling the rotating speed of the oil pump for external oil supply.
When the machine is started for the first time and a pipeline needs to be emptied, the ball valve IV 7 and the ball valve IV 11 are closed, the ball valve V10 is opened, the external oil supply inlet is connected into the quick connector II 13, the external oil supply return port is connected into the quick connector I12, and the pipeline air is emptied through multiple circulation of oil pump oil. When the residual oil amount of the auxiliary oil tank 1 needs to be exhausted, the ball valves I2 and IV 11 can be opened, the ball valves II 3, V10 and IV 7 can be closed, meanwhile, the oil tank breathing cap of the auxiliary oil tank 1 is plugged by the joint, and an external air supply compressor is used for injecting air to exhaust the residual oil.
The utility model relates to a double mode fuel feeding return circuit for fracturing unit truck, its beneficial effect lies in: the diesel engine of the vehicle platform can complete the supply of fuel oil required by the engine of the vehicle platform through the auxiliary oil tank and the original oil tank of the vehicle platform to carry out single-vehicle operation; the supply of outer fuel feeding can also be realized through switching the flow, and outer fuel feeding oil inlet C supplies oil through filter, buffer tank etc. and gives the platform diesel engine oil suction opening, and two kinds of modes can be switched at any time according to fracturing truck operation operating mode, and two kinds of operation modes are relatively independent, and it is convenient to switch, and the working strength that the on-the-spot refueling of outer fuel feeding operation mode ability greatly reduced has reduced the potential safety hazard that large capacity fuel exists when fracturing truck operation simultaneously.
Claims (5)
1. A dual-mode oil supply loop for a fracturing truck is characterized by comprising an auxiliary oil tank (1), wherein the auxiliary oil tank (1) is communicated with a raw truck oil tank (4) through a ball valve I (2) and a ball valve II (3), and the raw truck oil tank (4) is connected to an oil suction port A after being sequentially connected with a one-way valve I (5) and a ball valve III (6); the external oil supply is connected to a quick connector II (13) at the port C, and is connected to an oil suction port A of the vehicle engine after being sequentially connected with a fuel filter (14), a buffer tank (8) and a ball valve IV (7); an oil return port B of the vehicle engine is connected with a one-way valve II (9) and then connected with a quick connector I (12) at an oil return port D for supplying oil outside, an outlet of the one-way valve II (9) is connected with a ball valve V (10) and then connected with an outlet of a fuel filter (14), and an outlet of the fuel filter (14) is connected with an upper part of a shell of the auxiliary oil tank (1) after being connected with a ball valve VI (11); the outlet of the one-way valve II (9) is connected with a branch on a pipeline between the ball valve I (2) and the ball valve II (3).
2. A dual mode oil supply circuit for a fracturing truck according to claim 1, characterized in that the buffer tank (8) has a buffer volume of 10L.
3. The dual-mode oil supply loop for the fracturing truck as claimed in claim 1, wherein the ball valves I (2), II (3), III (6), IV (7), V (10) and VI (11) are manual or electric ball valves.
4. A dual mode oil supply circuit for a fracturing truck according to claim 1, characterized in that the opening pressure of the non return valve i (5) is 0.2 bar.
5. A dual mode oil supply circuit for a fracturing truck according to claim 1, characterized in that a pressure gauge is connected to the buffer tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922349783.5U CN211525226U (en) | 2019-12-24 | 2019-12-24 | Dual-mode oil supply loop for fracturing truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922349783.5U CN211525226U (en) | 2019-12-24 | 2019-12-24 | Dual-mode oil supply loop for fracturing truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211525226U true CN211525226U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922349783.5U Active CN211525226U (en) | 2019-12-24 | 2019-12-24 | Dual-mode oil supply loop for fracturing truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211525226U (en) |
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2019
- 2019-12-24 CN CN201922349783.5U patent/CN211525226U/en active Active
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Effective date of registration: 20200928 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Patentee before: Baoji Oilfield Machinery Co.,Ltd. |