CN220415551U - High Wen Duichai oil distribution and supply system - Google Patents
High Wen Duichai oil distribution and supply system Download PDFInfo
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- CN220415551U CN220415551U CN202321929144.6U CN202321929144U CN220415551U CN 220415551 U CN220415551 U CN 220415551U CN 202321929144 U CN202321929144 U CN 202321929144U CN 220415551 U CN220415551 U CN 220415551U
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- 239000000446 fuel Substances 0.000 claims abstract description 211
- 239000002828 fuel tank Substances 0.000 claims abstract description 72
- 238000012546 transfer Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 128
- 239000007788 liquid Substances 0.000 description 20
- 239000000295 fuel oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009469 supplementation Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
Embodiments of the present disclosure provide a high Wen Duichai fuel delivery system comprising a main fuel tank, a secondary fuel tank, a day tank, a first fuel transfer pump, a second fuel transfer pump, and a third fuel transfer pump; the main oil tank is connected with the daily oil tank through the first fuel delivery pump and the second fuel delivery pump respectively; the daily oil tank is connected with the diesel generator and is used for supplying oil to the diesel generator; the auxiliary fuel tank is connected with the main fuel tank through the third fuel delivery pump. According to the high Wen Duichai fuel supply system, the auxiliary fuel tank is arranged to store fuel, so that when the fuel stock of the main fuel tank is lower than a certain preset value, the auxiliary fuel tank can be used for supplementing fuel, frequent purchasing and transportation of fuel are avoided, the workload of site personnel and purchasing personnel is greatly reduced, and the cost of manpower and material resources is reduced; meanwhile, the capacity of the main oil tank is expanded by phase change, and the reliability of the power system is improved.
Description
Technical Field
The embodiment of the disclosure belongs to the technical field of energy power, and particularly relates to a high Wen Duichai oil distributing and supplying system.
Background
When the normal power supply outside the plant is completely lost, the high-temperature gas cooled reactor emergency diesel generator set is required to start power supply within a specified time, and the power supply is required to supply power to the process system loads which are specified on the emergency bus and allow the power supply to be interrupted for a certain time according to the load program, wherein the loads are safe auxiliary loads and necessary unsafe loads.
The daily oil tank provides fuel oil for normal operation of the diesel generator and is used for maintaining Chai Fa to operate at full power in a short time; the main tank stores fuel for the diesel generator, and the capacity of the main tank is required to be capable of maintaining the full power operation for Chai Fa longer. The main oil tank indirectly supplies oil to the diesel generator through the daily oil tank.
According to the rule requirements, the diesel engine needs to be started up for each month, and the on-load test is carried out regularly, so that the fuel consumption is high, frequent oil supplementation is needed, and the workload of field personnel and purchasing personnel is greatly increased; and once the main oil tank is exhausted or the condition that the oil supply pipeline from the main oil tank to the daily oil tank is in fault and overhauled is encountered, the diesel generator loses the source of the fuel oil and does not meet the safety requirement of the nuclear power plant.
Disclosure of Invention
Embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art, and provide a high Wen Duichai fuel delivery system, which includes a main fuel tank, a secondary fuel tank, a day tank, a first fuel delivery pump, a second fuel delivery pump, and a third fuel delivery pump;
the main oil tank is connected with the daily oil tank through the first fuel delivery pump and the second fuel delivery pump respectively;
the daily oil tank is connected with the diesel generator and is used for supplying oil to the diesel generator;
the auxiliary fuel tank is connected with the main fuel tank through the third fuel delivery pump.
Optionally, the auxiliary fuel tank is further connected with the daily fuel tank through the third fuel delivery pump.
Optionally, a second outlet valve of the third fuel delivery pump is arranged between the third fuel delivery pump and the daily fuel tank.
Optionally, the system further comprises a fuel source;
the fuel source is respectively connected with the main fuel tank and the auxiliary fuel tank and is used for respectively supplying fuel to the main fuel tank and the auxiliary fuel tank.
Optionally, a main tank inlet valve is arranged between the fuel source and the main tank; the method comprises the steps of,
and a secondary fuel tank inlet valve is arranged between the fuel source and the secondary fuel tank.
Optionally, an outlet end of the main oil tank is provided with a main oil tank outlet valve;
and a first fuel delivery pump inlet valve and a second fuel delivery pump inlet valve are respectively arranged between the main fuel tank outlet valve and the first fuel delivery pump and between the main fuel tank outlet valve and the second fuel delivery pump.
Optionally, a secondary fuel tank outlet valve and a third fuel delivery pump inlet valve are sequentially arranged between the secondary fuel tank and the third fuel delivery pump.
Optionally, a first fuel delivery pump outlet valve and a second fuel delivery pump outlet valve are respectively arranged between the daily fuel tank and the first fuel delivery pump and between the daily fuel tank and the second fuel delivery pump.
Optionally, a third fuel delivery pump first outlet valve is arranged between the third fuel delivery pump and the main fuel tank.
Optionally, the system further comprises a first check valve, a second check valve and a third check valve;
the outlet end of the first fuel delivery pump is connected with the inlet end of the first check valve, and the outlet end of the first check valve is connected with the outlet valve of the first fuel delivery pump;
the outlet end of the second fuel delivery pump is connected with the inlet end of the second check valve, and the outlet end of the second check valve is connected with the outlet valve of the second fuel delivery pump;
the outlet end of the third fuel delivery pump is connected with the inlet end of the third check valve; and the outlet end of the third check valve is respectively connected with the first outlet valve of the third fuel delivery pump and the second outlet valve of the third fuel delivery pump.
According to the high Wen Duichai fuel supply system, the auxiliary fuel tank is arranged to store fuel, so that when the fuel stock of the main fuel tank is lower than a certain preset value, the auxiliary fuel tank can be used for supplementing fuel, frequent purchasing and transportation of fuel are avoided, the workload of site personnel and purchasing personnel is greatly reduced, and the cost of manpower and material resources is reduced; meanwhile, the capacity of the main oil tank is expanded by phase change, and the reliability of the power system is improved.
Drawings
Fig. 1 is a schematic diagram of a high Wen Duichai oil delivery system according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a high Wen Duichai oil delivery system according to another embodiment of the present disclosure.
Detailed Description
The daily oil tank provides fuel oil for normal operation of the diesel generator, and can maintain full power operation of diesel engine for 2 hours; the main oil tank stores fuel oil for the diesel generator, and the system design outline requirement can maintain the full power operation of diesel generation for 7 days. The liquid level meter and the liquid level alarm device are arranged in the daily oil tank, and when the liquid level is too low to trigger an alarm, the main oil tank supplies oil to the daily oil tank.
Two sets of liquid level alarm values are arranged in the main oil tank, for example, in some practical cases, the main oil tank has a volume of 30 cubic meters, and a low liquid level alarm value of 27 cubic meters and a high liquid level alarm value of 29 cubic meters are respectively arranged. When the liquid level is lower than 27 cubic meters, the stored fuel is insufficient to maintain the full power operation of the diesel engine for 7 days, and the fuel is required to be replenished without conforming to the requirement of the outline; when the liquid level is higher than 29 cubic meters, the fuel is stopped to be replenished in order to avoid the excessive pressure in the main tank because the fuel possibly generates volume change due to temperature, pressure and other factors. Therefore, the volume of the main oil tank for supplementing fuel is about 2 cubic meters each time, and the main oil tank is frequently supplemented with fuel. Frequent oil supplementation greatly increases the workload of field personnel and purchasing personnel, and wastes labor cost and transportation cost.
To solve the above problems, the present disclosure proposes a high Wen Duichai oil supply system as follows.
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another element. Accordingly, a first component discussed below could be termed a second component without departing from the teachings of the concepts of the present disclosure. As used in this disclosure, the term "and/or" includes any one of the associated listed items and all combinations of one or more.
Those skilled in the art will appreciate that the drawings are schematic representations of example embodiments and that the modules or flows in the drawings are not necessarily required to practice the present disclosure, and therefore, should not be taken to limit the scope of the present disclosure.
As shown in fig. 1, a high Wen Duichai fuel delivery system provided in an embodiment of the present disclosure includes a main fuel tank T1, a sub-fuel tank T2, a daily fuel tank T3, a first fuel delivery pump B1, a second fuel delivery pump B2, and a third fuel delivery pump B3. The main oil tank T1 is connected with the daily oil tank T3 through the first fuel delivery pump B1 and the second fuel delivery pump B2 respectively. The daily oil tank T3 is connected with the diesel generator G and is used for supplying oil to the diesel generator G. The auxiliary tank T2 is connected to the main tank T1 via the third fuel transfer pump B3.
Specifically, the main tank T1 is used for supplying oil to the daily oil tank T3, and the daily oil tank T3 is filled at any time. Two groups of low liquid level alarm values, namely a low liquid level alarm value and a low liquid level alarm value, are arranged in the daily oil tank T3, and when the liquid level is low, the first fuel delivery pump B1 is started, and oil is supplied from the main oil tank T1 to the daily oil tank T3; when the liquid level is low and the alarm is given, in order to accelerate the oil delivery speed, the fuel delivery pump B2 is started, and the fuel is supplied from the main fuel tank T1 to the daily fuel tank T3. That is, when the fuel in the day tank T3 is consumed by the diesel generator G, the fuel in the main tank T1 is consumed synchronously. When the low liquid level alarm in the main oil tank is triggered, namely when the main oil tank T1 needs to be replenished with fuel, the third fuel oil delivery pump B3 is started, and oil is supplied from the auxiliary oil tank T2 to the main oil tank T1; when the high level warning in the main tank is triggered, the third fuel delivery pump B3 is stopped, thereby stopping increasing the fuel amount in the main tank T1.
According to the high Wen Duichai fuel supply system, the auxiliary fuel tank is arranged to store fuel, so that when the fuel stock of the main fuel tank is lower than a certain preset value, the auxiliary fuel tank can be used for supplementing fuel, frequent purchasing and transportation of fuel are avoided, the workload of site personnel and purchasing personnel is greatly reduced, and the cost of manpower and material resources is reduced; meanwhile, the capacity of the main oil tank is expanded by phase change, and the reliability of the power system is improved.
Illustratively, as shown in fig. 2, the auxiliary tank T2 is also connected to the daily tank T3 via the third fuel delivery pump B3.
Specifically, the outlets of the third fuel delivery pump B3 are respectively connected to the main tank T1 and the daily fuel tank T3, so that the auxiliary fuel tank T2 can supply fuel to the main tank T1 and also can directly supply fuel to the daily fuel tank T3.
According to the high Wen Duichai oil supply system, the auxiliary oil tank is arranged to serve as the spare oil tank, when the main oil tank breaks down or a pipeline from the main oil tank to the daily oil tank breaks down, and the main oil tank or the pipeline needs to be overhauled, the auxiliary oil tank can supply oil to the daily oil tank, so that the diesel generator is ensured to continuously have a reliable fuel source, and the reliability and the safety of the electric power system are improved.
Illustratively, as shown in fig. 2, a third fuel delivery pump second outlet valve D32 is provided between the third fuel delivery pump B3 and the day tank T3.
Specifically, a valve D32 is provided on the line from the third fuel delivery pump B3 to the daily fuel tank T3, and the valve D32 is closed when the main fuel tank T1 supplies fuel to the daily fuel tank T3 under normal conditions; when the main tank T1 is not available, the valve D32 is opened and the auxiliary tank T2 supplies oil to the daily tank T3.
According to the high Wen Duichai oil supply system, through the arrangement of the second outlet valve of the third fuel delivery pump, the oil supply pipeline from the auxiliary oil tank to the daily oil tank can be controlled to be opened or closed, so that whether the auxiliary oil tank supplies oil to the daily oil tank can be selected according to the actual situation.
Illustratively, as shown in FIG. 2, the system further includes a fuel source S. The fuel source S is connected to the main tank T1 and the auxiliary tank T2, respectively, and is configured to supply fuel to the main tank T1 and the auxiliary tank T2, respectively.
Specifically, the fuel source S may be a tank truck or a unified inlet of a fuel supply pipeline, which may supply fuel to the main tank T1 and the sub tank T2, respectively.
According to the high Wen Duichai oil supply system, the unified fuel source is used for adding fuel to the main oil tank and the auxiliary oil tank, a plurality of fuel sources do not need to be configured to deliver oil to the two oil tanks respectively, and the fuel sources do not need to be moved to deliver oil in sequence, so that field device redundancy is avoided, the oil supplementing procedure of the main oil tank and the auxiliary oil tank is simplified, and the workload of field personnel is reduced.
Illustratively, as shown in fig. 2, a main tank inlet valve D1 is provided between the fuel source S and the main tank T1. And a bellow inlet valve D2 is provided between the fuel source S and the bellow T2.
Specifically, in the normal case, the main tank inlet valve D1 and the sub tank inlet valve D2 are closed, and when the fuel amount in the main tank T1 and the sub tank T2 is low and the fuel is required to be replenished, the main tank inlet valve D1 is opened first to replenish the main tank T1. And after the oil is replenished to the main oil tank T1, closing the inlet valve D1 of the main oil tank, opening the inlet valve D2 of the auxiliary oil tank, replenishing the oil to the auxiliary oil tank T2, and closing the inlet valve D2 of the auxiliary oil tank after the oil is replenished. The high liquid level alarm in the oil tank can be used for judging whether the oil supplementing is finished or not, and the high liquid level alarm triggering time point of each oil tank is used as the moment when the inlet valve of each oil tank should be closed.
According to the high Wen Duichai oil supply system, the inlet valves are respectively arranged at the inlets of the main oil tank and the auxiliary oil tank, so that when the two oil tanks are replenished by using an external fuel source, the oil replenishing of the main oil tank and the auxiliary oil tank can be respectively controlled or stopped by controlling the switch of the two inlet valves.
Illustratively, as shown in fig. 2, the outlet end of the main tank T1 is provided with a main tank outlet valve D10. A first fuel delivery pump inlet valve D11 and a second fuel delivery pump inlet valve D12 are respectively arranged between the main fuel tank outlet valve D10 and the first fuel delivery pump B1 and the second fuel delivery pump B2.
Specifically, a first fuel delivery pump inlet valve D11 and a second fuel delivery pump inlet valve D12 are respectively arranged at the inlet ends of the first fuel delivery pump B1 and the second fuel delivery pump B2, so as to respectively control the oil inlets of the first fuel delivery pump B1 and the second fuel delivery pump B2. And a main tank outlet valve D10 is arranged at the upstream of the first fuel delivery pump inlet valve D11 and the second fuel delivery pump inlet valve D12 as a main valve to control the oil outlet of the main tank T1. When the liquid level of the daily oil tank T3 is low, the main oil tank outlet valve D10 and the first fuel delivery pump inlet valve D11 are opened, the first fuel delivery pump B1 is started, and the first fuel delivery pump B1 can send the fuel in the main oil tank T1 to the daily oil tank T3. When the liquid level of the daily oil tank T3 is low and the alarm is given, the inlet valve D12 of the second fuel delivery pump is opened, the second fuel delivery pump B2 is started, and the oil supplementing speed of the daily oil tank T3 is increased.
According to the high Wen Duichai oil supply system, the inlet valves are respectively arranged for the first fuel delivery pump and the second fuel delivery pump, and the outlet valves are arranged for the main fuel tank, so that the oil transportation process in the pipeline is controllable, the influence on the system caused by the mistaken starting of the fuel delivery pumps is prevented under the condition that some safety requirements are high, and corresponding oil paths can be timely cut off through the valves when faults such as leakage and the like occur in the main fuel tank, the pipeline and the fuel delivery pumps, and the safety of the system is improved.
Illustratively, as shown in fig. 2, a bellow outlet valve D20 and a third fuel delivery pump inlet valve D30 are provided in this order between the bellow T2 and the third fuel delivery pump B3.
Specifically, when the sub tank T2 needs to supply oil to the main tank T1 or directly supply oil to the daily tank T3, the sub tank outlet valve D20 and the third fuel delivery pump inlet valve D30 are opened, and the third fuel delivery pump B3 is started, so that the third fuel delivery pump B3 can deliver the fuel in the sub tank T2 to the main tank T1 or the daily tank T3.
According to the high Wen Duichai oil supply system, the auxiliary oil tank outlet valve D20 and the third fuel delivery pump inlet valve D30 are arranged, so that the oil delivery process in the pipeline is controllable, the influence on the system caused by the mistaken starting of the fuel delivery pump is prevented under the condition that some safety requirements are high, and the safety of the system is improved by timely cutting off an oil path through the valves when the auxiliary oil tank, the pipeline, the fuel delivery pump and the like have faults such as leakage.
Illustratively, as shown in fig. 2, a first fuel delivery pump outlet valve B13 and a second fuel delivery pump outlet valve B23 are respectively provided between the daily fuel tank T3 and the first fuel delivery pump B1 and the second fuel delivery pump B2.
Specifically, a first fuel delivery pump outlet valve B13 is provided on a line of the first fuel delivery pump B1 leading to the daily fuel tank T3, and a second fuel delivery pump outlet valve B23 is provided on a line of the second fuel delivery pump B2 leading to the daily fuel tank T3. The first fuel delivery pump outlet valve B13 is opened in advance when the first fuel delivery pump B1 is ready to start, and the second fuel delivery pump outlet valve B23 is opened in advance when the second fuel delivery pump B2 is ready to start. On the contrary, when the first fuel delivery pump B1 or the second fuel delivery pump B2 should not be started, the first fuel delivery pump outlet valve B13 or the second fuel delivery pump outlet valve B23 is closed, so as to prevent the fuel delivery pump from being erroneously started and then affecting the system, and when the auxiliary fuel tank, the pipeline, the fuel delivery pump and the like have faults, the oil circuit can be timely cut off through the valves, thereby improving the safety of the system.
In order to facilitate the daily use of the oil supply system, the valves D10, D11, D12, D13 and D23 can be kept open, the starting and stopping of the fuel delivery pumps B1 and B2 are automatically controlled by the liquid level of the main oil tank T1, the oil supplementing speed of the main oil tank to the daily oil tank is adjusted at any time, and the corresponding valves are closed for isolation when the system fails.
As shown in fig. 2, a third fuel delivery pump first outlet valve D31 is provided between the third fuel delivery pump B3 and the main tank T1.
Specifically, a valve D31 is provided in the line from the third fuel delivery pump B3 to the main tank T1. Under daily conditions, the main oil tank T1 needs to be frequently replenished with the auxiliary oil tank T2, and the first outlet valve D31 of the third fuel delivery pump is kept open, so that when the main oil tank T1 is low in liquid level and alarms, the third fuel delivery pump B3 can be started at any time to replenish the main oil tank T1 with oil. When the main fuel tank T1 fails to supply fuel to the daily fuel tank T3, the first outlet valve D31 of the third fuel delivery pump is closed, the main fuel tank T1 is isolated from the auxiliary fuel tank T2, and the speed of supplying fuel to the daily fuel tank T3 by the auxiliary fuel tank T2 is ensured.
Illustratively, as shown in FIG. 2, the system further includes a first check valve N1, a second check valve N2, and a third check valve N3. The outlet end of the first fuel delivery pump B1 is connected with the inlet end of the first check valve N1, and the outlet end of the first check valve N1 is connected with the first fuel delivery pump outlet valve D13. The outlet end of the second fuel delivery pump B2 is connected with the inlet end of the second check valve N2, and the outlet end of the second check valve N2 is connected with the second fuel delivery pump outlet valve D23. The outlet end of the third fuel delivery pump B3 is connected with the inlet end of the third check valve N3. The outlet end of the third check valve N3 is respectively connected with the first outlet valve D31 of the third fuel delivery pump and the second outlet valve D32 of the third fuel delivery pump.
According to the high Wen Duichai oil supply system, the check valves are respectively arranged at the outlet ends of the fuel delivery pumps, so that equipment damage caused by reverse rotation of the fuel delivery pumps due to reverse flow of fuel is prevented, and the safety of the oil supply system is improved.
It is to be understood that the above embodiments are merely exemplary embodiments employed to illustrate the principles of the present disclosure, however, the present disclosure is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the disclosure, and are also considered to be within the scope of the disclosure.
Claims (10)
1. A high Wen Duichai fuel delivery system, comprising a main fuel tank, a secondary fuel tank, a day tank, a first fuel delivery pump, a second fuel delivery pump, and a third fuel delivery pump;
the main oil tank is connected with the daily oil tank through the first fuel delivery pump and the second fuel delivery pump respectively;
the daily oil tank is connected with the diesel generator and is used for supplying oil to the diesel generator;
the auxiliary fuel tank is connected with the main fuel tank through the third fuel delivery pump.
2. The high Wen Duichai fuel supply system of claim 1, wherein said secondary fuel tank is further connected to said day tank by said third fuel transfer pump.
3. The high Wen Duichai fuel delivery system of claim 2, wherein a third fuel delivery pump second outlet valve is disposed between the third fuel delivery pump and the day tank.
4. The high Wen Duichai oil delivery system of claim 1, further comprising a source of fuel;
the fuel source is respectively connected with the main fuel tank and the auxiliary fuel tank and is used for respectively supplying fuel to the main fuel tank and the auxiliary fuel tank.
5. The high Wen Duichai fuel supply system of claim 4, wherein a main tank inlet valve is disposed between said fuel source and said main tank; the method comprises the steps of,
and a secondary fuel tank inlet valve is arranged between the fuel source and the secondary fuel tank.
6. A tall Wen Duichai hair supply system as claimed in any one of claims 1 to 5 in which the outlet end of the main tank is provided with a main tank outlet valve;
and a first fuel delivery pump inlet valve and a second fuel delivery pump inlet valve are respectively arranged between the main fuel tank outlet valve and the first fuel delivery pump and between the main fuel tank outlet valve and the second fuel delivery pump.
7. A high Wen Duichai fuel delivery system according to any one of claims 1 to 5, wherein a secondary fuel tank outlet valve and a third fuel delivery pump inlet valve are provided in sequence between the secondary fuel tank and the third fuel delivery pump.
8. A high Wen Duichai fuel delivery system according to any one of claims 1 to 5, wherein a first fuel delivery pump outlet valve and a second fuel delivery pump outlet valve are provided between the day tank and the first and second fuel delivery pumps, respectively.
9. The high Wen Duichai fuel supply system of claim 8, wherein a third fuel transfer pump first outlet valve is disposed between said third fuel transfer pump and said main tank.
10. The high Wen Duichai oil supply system of claim 9, further comprising a first check valve, a second check valve, and a third check valve;
the outlet end of the first fuel delivery pump is connected with the inlet end of the first check valve, and the outlet end of the first check valve is connected with the outlet valve of the first fuel delivery pump;
the outlet end of the second fuel delivery pump is connected with the inlet end of the second check valve, and the outlet end of the second check valve is connected with the outlet valve of the second fuel delivery pump;
the outlet end of the third fuel delivery pump is connected with the inlet end of the third check valve; and the outlet end of the third check valve is respectively connected with the first outlet valve of the third fuel delivery pump and the second outlet valve of the third fuel delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929144.6U CN220415551U (en) | 2023-07-21 | 2023-07-21 | High Wen Duichai oil distribution and supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929144.6U CN220415551U (en) | 2023-07-21 | 2023-07-21 | High Wen Duichai oil distribution and supply system |
Publications (1)
| Publication Number | Publication Date |
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| CN220415551U true CN220415551U (en) | 2024-01-30 |
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| CN202321929144.6U Active CN220415551U (en) | 2023-07-21 | 2023-07-21 | High Wen Duichai oil distribution and supply system |
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| CN (1) | CN220415551U (en) |
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2023
- 2023-07-21 CN CN202321929144.6U patent/CN220415551U/en active Active
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