Pumping pressure type pressurizing conveying system

Abstract

The invention relates to a pumping pressure type pressurization conveying system which comprises a pressurization module and a conveying module which are connected through a pipeline. The conveying module comprises a storage box module, a filling sub-module and a booster pump sub-module; the storage box module comprises a box body and partition plates dividing an inner cavity of the box body into a plurality of containing cavities, each partition plate is provided with a liquid conveying pipe so that all the containing cavities can be communicated in series, and in the pressurizing direction, the downstream end of each liquid conveying pipe is located on the upper portion of the corresponding partition plate, and the downstream end of each liquid conveying pipe is located on the lower portion of the corresponding partition plate. The upstream end is located on the upstream of the partition plate and located on the lower portion of the containing cavity where the partition plate is located; in the pressurization direction, the filling sub-module and the booster pump sub-module are both communicated with the most downstream containing cavity; and the pressurization module is communicated with the most upstream containing cavity in the pressurization direction. The box body of the propellant storage box is designed to be separated, so that gas and liquid are conveyed in sequence among the compartments, the movement of the mass center of the propellant can be effectively controlled, meanwhile, the shaking of the propellant can be inhibited, and the liquid supply safety is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft boosting and delivery, and in particular to a pump-type boosting and delivery system. Background Art

[0002] The function of the booster delivery system is to continuously supply the propellant to the downstream booster pump according to the pressure and flow rate required by the engine, and then the booster pump will provide it to the aircraft engine after boosting. In particular, when the aircraft is under negative overload, lateral overload, large shaking, etc., the propellant will shake violently in the tank and produce bubbles. The bubbles will enter the engine and cause the engine to stall, resulting in the failure of the flight mission.

[0003] At present, the aircraft pressurization delivery system often adopts the elastic bag liquid supply scheme, which uses a metal or non-metal film to isolate the air pillow in the propellant tank from the propellant. When working, the elastic bag or the outside of the bag is filled with a certain pressure of pressurized gas, which can realize the supply of air-free propellant to the engine under overload conditions. This scheme has strong overload resistance and can meet the flight conditions such as shaking and overload of small and medium-sized aircraft with low propellant loading. However, it is difficult to adapt to medium- and long-range high-speed maneuvering and circulating aircraft. Due to the large and irregular size of the tank of this type of aircraft, it is difficult for the elastic bag to fully fit the corners and special-shaped spaces when it is unfolded, and the entire large elastic bag is large in volume, which reduces the propellant loading. When the aircraft is maneuvering, it will cause a drastic change in the center of mass of the liquid, and it is easy to cause leakage at the connection between the elastic bag and the metal joint. The reliability and maintainability are not high under severe shaking conditions and repeated use conditions. Summary of the invention

[0004] The embodiment of the present application provides a pump-type booster delivery system to solve the problem in the related art that the violent shaking of the propellant in the tank will generate bubbles, and the bubbles will enter the engine to cause the engine to stall, resulting in the failure of the flight mission.

[0005] In a first aspect, a pump-type pressure boosting delivery system is provided, comprising:

[0006] The booster module and the delivery module are connected by a pipeline;

[0007] The delivery module includes a tank module, a filling submodule and a booster pump submodule; the tank module includes a tank body and a partition that divides the tank body into a plurality of cavities, each of which is provided with a liquid infusion pipe so that all the cavities are connected in series, and along the boosting direction, of the two ends of the liquid infusion pipe, the downstream end is located at the upper part of the partition, and the upstream end is located upstream of the partition and at the lower part of the cavities where the liquid infusion pipe is located; along the boosting direction, the filling submodule and the booster pump submodule are both connected with the most downstream cavities;

[0008] The boost module is connected with the most upstream cavity along the boost direction.

[0009] In some embodiments, the boosting module includes a gas cylinder, a solenoid valve and a pressure reducing valve connected in sequence via a pipeline. The pipeline is also provided with an inflation valve, which is located between the gas cylinder and the solenoid valve. Along the boosting direction, the pressure reducing valve is connected to the upper part of the most upstream cavity.

[0010] In some embodiments, a vent is provided on the pipeline, and the vent is arranged between the pressure reducing valve and the box.

[0011] In some embodiments, a safety valve is provided on the pipeline, and the safety valve is located between the pressure reducing valve and the box.

[0012] In some embodiments, a high-pressure pressure sensor and a low-pressure pressure sensor are provided on the pipeline, the high-pressure pressure sensor is located between the gas cylinder and the solenoid valve, and the low-pressure pressure sensor is located between the vent and the safety valve.

[0013] In some embodiments, the filling submodule includes a filling valve, the filling valve is connected to a liquid supply pipe, the other end of the liquid supply pipe is connected to the lower part of the box body, the liquid supply pipe is connected to an oil extractor, and the oil extractor extends into the box body.

[0014] In some embodiments, the boost pump submodule includes a boost pump, the boost pump is connected to the liquid supply pipe through a pipeline, the boost pump and the engine are connected through a pipeline, and a one-way valve is provided on the pipeline.

[0015] In some embodiments, a pre-pump pressure sensor and a flow meter are provided on the pipeline, and the pre-pump pressure sensor and the flow meter are arranged between the liquid supply pipe and the booster pump.

[0016] In some embodiments, a post-pump pressure sensor is provided on the pipeline, and the post-pump pressure sensor is located between the one-way valve and the engine.

[0017] In some embodiments, a discharge system is further included, which includes a discharge valve, and the discharge valve is connected to the boosting pump through a pipeline.

[0018] The embodiment of the present application provides a pump-type booster delivery system, which can realize the functions of sequential forward liquid supply and reverse filling, that is, when filling the propellant, the propellant is transported from the filling submodule to the box. Since a partition is set in the box and a liquid infusion tube is set on the partition, the propellant is transported from right to left in sequence, and the gas in the box is discharged. After the filling is completed, the booster module pressurizes the box. Under the action of pressure, the propellant in the box is transported from left to right through the liquid infusion tube, and then transported to the booster pump submodule. After the pressurization, the propellant is supplied to the engine at a certain pressure and flow rate. The cavity near one end of the booster pump submodule is kept full of liquid until the propellant in the remaining cavities is consumed. The propellant tank partition design not only allows the gas and liquid to be transported in sequence between the compartment cavities, but also effectively controls the movement of the propellant center of mass, and at the same time can suppress the shaking of the propellant to ensure the safety of liquid supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the structure of a pump-type pressurized delivery system provided in an embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the storage box module structure provided in an embodiment of the present application.

[0022] In the figure: 1-boosting module, 2-transporting module, 3-discharge module, 11-gas cylinder, 12-inflating valve, 13-solenoid valve, 14-pressure reducing valve, 15-safety valve, 16-high pressure sensor, 17-low pressure sensor, 120-inflating port, 150-vent, 21-storage box module, 22-filling submodule, 23-boosting pump submodule, 211-box, 212-partition, 213- Infusion pipe, 214-oil extractor, 201-first chamber, 202-second chamber, 203-third chamber, 200-boosting gas port, 210-liquid supply port, 222-liquid supply pipe, 221-filling valve, 220-filling port, 231-pressure sensor before pump, 232-flow meter, 233-boosting pump, 234-check valve, 235-pressure sensor after pump, 31-discharge valve, 32-discharge pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] The embodiment of the present application provides a pump-type boost delivery system, which can solve the problem in the related art that the violent shaking of the propellant in the tank will generate bubbles, and the bubbles will enter the engine to cause the engine to stall, resulting in the failure of the flight mission.

[0025] like Figure 1 As shown, a pump pressure boosting delivery system comprises:

[0026] The booster module 1 and the delivery module 2 are connected by a pipeline;

[0027] The delivery module 2 includes a storage box module 21, a filling submodule 22 and a booster pump submodule 23; the storage box module 21 includes a box body 211 and a partition 212 that divides the inner cavity of the box body 211 into a plurality of cavities, each partition 212 is provided with a liquid infusion tube 213, so that all the cavities are connected in series, and along the boosting direction, of the two ends of the liquid infusion tube 213, the downstream end is located at the upper part of the partition 212, and the upstream end is located upstream of the partition 212 and at the lower part of the cavity where it is located; along the boosting direction, the filling submodule 22 and the booster pump submodule 23 are both connected to the most downstream cavity;

[0028] The boost module 1 is connected to the most upstream cavity along the boost direction.

[0029] The embodiment of the present application provides a pump-type booster delivery system, which can realize the functions of forward liquid supply and reverse filling in sequence, that is: when filling the propellant, the propellant is delivered from the filling submodule 21 to the box body 211. Since a partition 212 is provided in the box body 211 and a liquid infusion tube 213 is provided on the partition 212, the propellant is delivered in sequence from right to left, and the gas in the box body 211 is discharged. After the filling is completed, the booster module 1 increases the pressure in the box 211. Under the action of pressure, the propellant in the box 211 is transported from left to right through the infusion tube 213, and then transported to the booster pump submodule 23. After the boost, the propellant is supplied to the engine at a certain pressure and flow rate. The cavity close to one end of the booster pump submodule 23 is kept full of liquid until the propellant in the remaining cavities is consumed. The partition design of the box 211 can not only transport the gas and liquid in each compartment in sequence, but also effectively control the movement of the propellant's center of mass, and at the same time suppress the shaking of the propellant to ensure the safety of the liquid supply.

[0030] In the present application, the partition 212 is arranged in the box body 211 to adapt to various large-sized and special-shaped tank structures, improve the utilization rate of the propellant loading space, and at the same time improve the structural strength and rigidity of the tank body 211, and provide a fixing point for the infusion tube 213.

[0031] Furthermore, the boosting module 1 includes a gas cylinder 11, a solenoid valve 13 and a pressure reducing valve 14 which are connected in sequence via a pipeline. An air charging valve 12 is also provided on the pipeline. The air charging valve 12 is located between the gas cylinder 11 and the solenoid valve 13. Along the boosting direction, the pressure reducing valve 14 is connected to the upper part of the most upstream cavity.

[0032] In the present application, the gas cylinder 11 is used as a storage container for high-pressure gas, providing the gas source required for pressurization for the entire system. The high-pressure gas stored in it is the power source for the subsequent pressurization process, ensuring that the system can operate stably. The charging valve 12 is provided with a charging port 120, and an external charging device is connected to facilitate the charging operation of the gas cylinder 11. When the gas pressure in the gas cylinder 11 is insufficient, the high-pressure gas can be added to the gas cylinder 11 by opening the charging valve 12 and using the external charging device to ensure that the gas source of the system is sufficient. The solenoid valve 13 controls the on and off of the high-pressure gas, and accurately controls the supply of gas according to the working requirements of the engine, so as to flexibly control the start and stop of the engine, and improve the controllability and adaptability of the system. The pressure reducing valve 14 reduces the high-pressure gas output by the gas cylinder 11 into a low-pressure gas suitable for the pressurization of the tank body 211. It is ensured that the gas pressure entering the tank body 211 is within a safe range, which can not only achieve effective pressurization, but also will not cause damage to the tank body 211 due to excessive pressure, thereby ensuring the safety and stability of the system.

[0033] Furthermore, the pipeline is provided with a vent 150, which is arranged between the pressure reducing valve 14 and the box 211. The vent 150 is opened when the propellant is added, so that the gas in the box 211 can be discharged smoothly, ensuring that the propellant can be smoothly added to the box 211. After the filling is completed, it is closed to prevent gas leakage and ensure the sealing and pressurization effect of the system.

[0034] Furthermore, a safety valve 15 is provided on the pipeline, and the safety valve 15 is located between the pressure reducing valve 14 and the tank body 211. The safety valve 15 limits the boost pressure. When the boost pressure exceeds the designed pressure bearing capacity of the tank body 211, the safety valve 15 automatically opens to release the excess gas, so that the pressure is quickly reduced to a safe range, which plays an important role in protecting the tank body 211 and preventing safety accidents such as the rupture of the tank body 211 due to excessive pressure.

[0035] Furthermore, a high-pressure sensor 16 and a low-pressure sensor 17 are provided on the pipeline. The high-pressure sensor 16 is located between the gas cylinder 11 and the solenoid valve 13 and is used to monitor the gas pressure in the gas cylinder 11 in real time. The low-pressure sensor 17 is located between the vent 150 and the safety valve 15. The low-pressure sensor 17 is used to monitor the gas pressure entering the tank body 211 after the output of the pressure reducing valve 14. By real-time monitoring of the boost pressure, it can work in conjunction with the safety valve 15 to ensure that the boost pressure is within the designed pressure bearing capacity of the tank body 211, prevent excessive pressure from causing damage to the body 211, and ensure the safe operation of the system.

[0036] Furthermore, the filling submodule 22 includes a filling valve 221 , the filling valve 221 is connected to a liquid supply pipe 222 , the other end of the liquid supply pipe 222 is connected to the lower part of the box body 211 , the liquid supply pipe 222 is connected to an oil extractor 214 , and the oil extractor 214 extends into the box body 211 .

[0037] In the present application, the oil extractor 214 is a follow-up oil extractor 214, which extends into the box 211, can follow the overload direction, adapt to different flight attitudes, ensure that the propellant can be effectively extracted in various flight states, realize continuous and stable liquid supply, and improve the reliability and adaptability of the system. By opening and closing the filling valve 221, the filling and stopping of the propellant are realized, ensuring the controllability and safety of the filling process.

[0038] Furthermore, the boost pump submodule 23 includes a boost pump 233, which is connected to the liquid supply pipe 222 through a pipeline, and the boost pump 233 and the engine are connected through a pipeline, and a one-way valve 234 is provided on the pipeline. The boost pump 233 pressurizes the incoming propellant to a certain pressure and flow rate to meet the working requirements of the engine. When the engine stops working or the system fails, the one-way valve 234 can prevent the propellant from flowing back, avoiding damage to the boost pump 233 and other components, while ensuring the safety and stability of the system.

[0039] Furthermore, a pre-pump pressure sensor 231 and a flow meter 232 are provided on the pipeline, and the pre-pump pressure sensor 231 and the flow meter 232 are arranged between the liquid supply pipe 222 and the booster pump 233. The pre-pump pressure sensor 231 is used to monitor the propellant pressure before the booster pump 233 in real time, and provide pressure data reference for system control. By monitoring the pre-pump pressure, abnormal pressure conditions in the liquid supply process can be discovered in time, such as low pressure that may cause cavitation of the booster pump 233, so that timely measures can be taken for adjustment and maintenance. The flow meter 232 is used to measure the propellant flow entering the booster pump 233. According to the data of the flow meter 232, the supply of the propellant can be understood to ensure that the engine obtains a stable propellant flow and ensure the normal operation of the engine.

[0040] Furthermore, a post-pump pressure sensor 235 is provided on the pipeline, and the post-pump pressure sensor 235 is located between the one-way valve 234 and the engine. The post-pump pressure sensor 235 is used to monitor the propellant pressure after the boosting pump 233 is boosted, and ensure that the propellant pressure after the boosting reaches the working requirements of the engine. Through the data of the post-pump pressure sensor 235, the boosting effect can be understood in real time, and the system can be accurately controlled and adjusted.

[0041] Furthermore, it also includes a discharge system 3, which includes a discharge valve 31, and the discharge valve 31 is connected to the booster pump 233 through a pipeline. After the flight, the remaining propellant is discharged to increase the flight and recovery reliability of the aircraft.

[0042] Take two partitions 212 as an example. Figure 2 As shown, two partitions 212 are arranged in the inner cavity of the box body 211, dividing the inner cavity of the box body 211 into a first cavity 201, a second cavity 202, and a third cavity 203. The cavities are connected by a liquid infusion pipe 213, and the specific connection method is: along the pressurization direction, that is, from left to right in the figure, the liquid infusion pipe 213 is arranged upstream of the partition 212, and the liquid infusion pipe 213 extends from the bottom of the first cavity 201 to the top of the second cavity 202, and the liquid infusion pipe 212 extends from the bottom of the second cavity 202 to the top of the third cavity 203. A pressurization gas port 200 is arranged at the front end of the top of the first cavity 201, and the pressurization gas port 200 is connected to the gas cylinder 11. A liquid supply port 210 is arranged at the rear end of the third cavity 203 near the bottom, and the liquid supply port 210 is connected to the filling valve 221.

[0043] The working principle of a pump-type booster delivery system is:

[0044] Before work, the high-pressure gas cylinder 11 is inflated by opening the charging valve 12 and connecting the charging port 120 to an external charging device. The high-pressure pressure sensor 16 can monitor the pressure of the gas cylinder 11, and the charging valve 12 is closed after reaching a predetermined pressure. When filling the propellant, the vent 150 of the booster module 1 is opened, and the propellant is injected into the third cavity 203 through the filling valve 212, the liquid supply pipe 222, and the oil extractor 214, and then the third cavity 203 is filled and then injected into the second cavity 202 through the liquid infusion pipe 213, and then the second cavity 202 is filled and then injected into the first cavity 201 through the liquid infusion pipe 213, and the gas in the box 211 is discharged through the vent 150. After the filling is completed, the vent 150 and the filling port 220 are closed.

[0045] When working, the solenoid valve 13 is opened, and the high-pressure gas in the gas cylinder 11 is reduced to low-pressure gas after passing through the pressure reducing valve 14, and the tank body 211 is pressurized. The low-pressure pressure sensor 17 can monitor the supercharging pressure, and the safety valve 15 limits the supercharging pressure to prevent it from exceeding the designed pressure bearing capacity of the tank body 211. Under the supercharging pressure, the propellant in the first chamber 201 is transported to the second chamber 202 through the infusion pipe 213, and the propellant in the second chamber 202 is transported to the third chamber 203 through the infusion pipe 213, and finally enters the boosting pump 23 through the oil extractor 214 and the liquid supply pipe 222 for supercharging. After supercharging, the propellant is supplied to the engine at a certain pressure and flow rate. The third chamber 203 is kept full of liquid until the propellant in the first chamber 201 and the second chamber 202 is consumed, and the oil extractor 214 can follow the overload direction to adapt to different flight postures and achieve continuous and stable liquid supply.

[0046] After the engine operation is finished, the remaining propellant is discharged into the atmosphere through the discharge valve 31 .

[0047] In summary, the present application includes at least one of the following beneficial technical effects:

[0048] 1. The pressurized delivery system can realize the functions of forward liquid supply, reverse filling, and residual propellant discharge in sequence, and has the functions of inflation and overpressure deflation, which increases the reliability of aircraft flight and recovery;

[0049] 2. According to the anti-cavitation pressure requirements of the booster pump inlet, the working pressure range of the booster system is reasonably designed to reduce the pressure requirements of the tank and reduce the manufacturing cost;

[0050] 3. The partitions arranged in the tank can adapt to various large-sized and special-shaped tank structures, improve the utilization rate of the propellant loading space, and at the same time improve the structural strength and rigidity of the tank body, and provide a fixing point for the infusion tube;

[0051] 4. The design of the propellant tank compartments not only allows the gas and liquid to be transported in sequence between the compartments, but also effectively controls the movement of the propellant center of mass, and at the same time suppresses the propellant shaking to ensure the safety of liquid supply;

[0052] 5. The engine can be started and stopped multiple times through the solenoid valve switch. At the same time, all components are assembled structures, making the system recyclable, maintainable and reusable;

[0053] 6. Sequential delivery in the compartments and the follow-up oil extractor can meet the stable liquid supply under various flight attitudes.

[0054] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0056] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A pump-type pressure boosting and delivery system, characterized in that: include: A booster module (1) and a delivery module (2), the two being connected via a pipeline; The delivery module (2) comprises a tank module (21), a filling submodule (22) and a booster pump submodule (23); the tank module (21) comprises a tank body (211) and a partition (212) for dividing the inner cavity of the tank body (211) into a plurality of cavities, each of the partitions (212) being provided with a liquid infusion tube (213) so that all the cavities are connected in series, and along the boosting direction, of the two ends of the liquid infusion tube (213), the downstream end is located at the upper part of the partition (212), and the upstream end is located upstream of the partition (212) and at the lower part of the cavities where the liquid infusion tube (213) is located; along the boosting direction, the filling submodule (22) and the booster pump submodule (23) are both connected to the most downstream cavities; The boosting module (1) is connected to the most upstream cavity along the boosting direction.

2. The pump-type pressure boosting delivery system according to claim 1, characterized in that: The boosting module (1) comprises a gas cylinder (11), a solenoid valve (13) and a pressure reducing valve (14) which are connected in sequence via a pipeline. The pipeline is also provided with an air charging valve (12). The air charging valve (12) is located between the gas cylinder (11) and the solenoid valve (13). Along the boosting direction, the pressure reducing valve (14) is connected to the upper part of the most upstream chamber.

3. The pump-type pressure boosting delivery system according to claim 2, characterized in that: The pipeline is provided with a vent (150), and the vent (150) is arranged between the pressure reducing valve (14) and the box (211).

4. The pump-type pressure boosting delivery system according to claim 3, characterized in that: The pipeline is provided with a safety valve (15), and the safety valve (15) is located between the pressure reducing valve (14) and the box (211).

5. The pump-type pressure boosting delivery system according to claim 4, characterized in that: A high-pressure pressure sensor (16) and a low-pressure pressure sensor (17) are provided on the pipeline; the high-pressure pressure sensor (16) is located between the gas cylinder (11) and the solenoid valve (13); and the low-pressure pressure sensor (17) is located between the vent (150) and the safety valve (15).

6. The pump-type pressure boosting delivery system according to claim 1, characterized in that: The filling submodule (22) comprises a filling valve (221), the filling valve (221) is connected to a liquid supply pipe (222), the other end of the liquid supply pipe (222) is connected to the lower part of the box body (211), the liquid supply pipe (222) is connected to an oil extractor (214), and the oil extractor (214) extends into the box body (211).

7. The pump-type pressure boosting delivery system according to claim 6, characterized in that: The boost pump submodule (23) comprises a boost pump (233), the boost pump (233) is connected to the liquid supply pipe (222) via a pipeline, the boost pump (233) and the engine are connected via a pipeline, and a one-way valve (234) is provided on the pipeline.

8. The pump-type pressure boosting delivery system according to claim 7, characterized in that: A pre-pump pressure sensor (231) and a flow meter (232) are provided on the pipeline, and the pre-pump pressure sensor (231) and the flow meter (232) are arranged between the liquid supply pipe (222) and the booster pump (233).

9. The pump-type pressure boosting delivery system according to claim 7, characterized in that: A post-pump pressure sensor (235) is provided on the pipeline, and the post-pump pressure sensor (235) is located between the one-way valve (234) and the engine.

10. The pump-type pressure boosting delivery system according to claim 6, characterized in that: It also includes a discharge system (3), which includes a discharge valve (31), and the discharge valve (31) is connected to the boosting pump (233) through a pipeline.

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