Gas conveying equipment with composite structure

Abstract

The utility model discloses gas conveying equipment with a composite structure, which comprises a double-screw main machine and a pressurizing and cooling system, and the double-screw main machine comprises a cylinder body, a male screw and a female screw; the pressurizing and cooling system at least comprises a high-pressure centrifugal fan and a gas collecting cylinder; the high-pressure centrifugal fan is communicated with an air inlet of the double-screw main machine through an air collecting cylinder; the system further comprises an energy efficiency control system, so that the whole gas conveying equipment operates in a safe and efficient state according to actual requirements of users. The high-pressure centrifugal fan conveys air flow with certain pressure to the air inlet of the double-screw main machine through the air supply pipe, the cylinder body, the male screw and the female screw can be cooled, the flow and the exhaust pressure of the double-screw main machine can be doubly improved, and under the coordinated control of the energy efficiency control system, the energy efficiency of the double-screw main machine is improved. And the operation efficiency and the safety performance of the whole machine are improved.

Description

Technical Field

[0001] The utility model relates to a gas conveying device with a composite structure, in particular to a twin-screw gas conveying device containing a pressurized cooling system and an energy efficiency control system. Background Art

[0002] Twin-screw gas conveying equipment is a volumetric fan that has the advantages of forced gas conveying, is sturdy and durable, highly efficient and energy-saving, and is very popular among users.

[0003] The twin-screw gas conveying equipment has the following main problems in actual use:

[0004] 1. The high exhaust temperature and the temperature rise and expansion of the gas directly affect the aerodynamic efficiency of the whole machine, especially when the exhaust pressure is high, the situation is more serious. In many cases, complex and dedicated cooling systems have to be adopted, which increases the cost of the system.

[0005] 2. When the twin-screw gas conveying equipment is in operation, a pair of yin and yang screws rotate at high speed. The centrifugal force they generate causes a certain range of negative pressure area to be formed in the inner area of ​​the air inlet of the main engine of the twin-screw gas conveying equipment, resulting in a certain degree of decrease in the actual air intake volume of the twin-screw gas conveying equipment, affecting the gas flow index of the twin-screw gas conveying equipment.

[0006] 3. Due to the existence of the negative pressure area formed in the inner area of ​​the air inlet of the main engine of the above-mentioned twin-screw gas conveying equipment during operation, the exhaust pressure of the twin-screw gas conveying equipment will also be dragged down, causing its exhaust pressure to drop. If the exhaust pressure is to be kept constant, the pressure difference between the inlet and outlet of the twin-screw gas conveying equipment will increase, and the energy consumption of the whole machine of the twin-screw gas conveying equipment will inevitably increase, that is, the whole machine efficiency of the twin-screw gas conveying equipment will be reduced. Utility Model Content

[0007] Aiming at the defects of twin-screw gas conveying equipment, the utility model provides a gas conveying equipment with a composite structure to solve the problems of high exhaust temperature, small exhaust flow, low exhaust pressure and low overall machine operation efficiency of the twin-screw gas conveying equipment in the prior art.

[0008] A gas conveying equipment with a composite structure includes a twin-screw main unit and a pressurized cooling system, wherein the twin-screw main unit includes a cylinder body, a male screw, and a female screw; the pressurized cooling system includes at least a high-pressure centrifugal fan and an air collecting cylinder, and the high-pressure centrifugal fan is connected to the air inlet of the twin-screw main unit through the air collecting cylinder.

[0009] Preferably, the high-pressure centrifugal fan exhaust port of the high-pressure centrifugal fan is connected to a high-pressure centrifugal fan air supply pipe, and the high-pressure centrifugal fan air supply pipe extends into the interior of the air collecting cylinder.

[0010] Preferably, the air collecting cylinder is arranged above the air inlet of the twin-screw main unit, and a heat dissipation vent is provided on the air collecting cylinder, and the height of the heat dissipation vent is higher than the height of the lower port of the air supply pipe of the high-pressure centrifugal fan.

[0011] Preferably, the lower end of the high-pressure centrifugal fan air supply pipe is a bell mouth with a small upper part and a large lower part, and the gas delivered by the high-pressure centrifugal fan is sprayed onto the outer circle of the male and female screws of the twin-screw main unit through the bell mouth, and is also sprayed onto the inner wall of the cylinder body of the twin-screw main unit.

[0012] Alternatively, the lower port of the high-pressure centrifugal fan air supply pipe is provided with a closure, and the lower port is connected to a plurality of groups of jet pipes diffusing downward, and the plurality of groups of jet pipes are evenly distributed along the lower end surface of the high-pressure centrifugal fan air supply pipe.

[0013] Preferably, the heat dissipation vents are tubular holes.

[0014] Preferably, a regulating valve is provided on the heat dissipation air outlet, and the air volume flowing through the heat dissipation air outlet can be controlled by adjusting the opening of the regulating valve, and the opening of the regulating valve is automatically adjusted by the control host of the energy efficiency control system.

[0015] Preferably, the air inlet of the high-pressure centrifugal fan is connected to an air inlet filter.

[0016] Preferably, the high-pressure centrifugal fan is powered and driven by a frequency converter, and the air volume and air pressure of the high-pressure centrifugal fan are adjusted to an optimal state by the control host through the frequency converter.

[0017] Preferably, the driving motor of the twin-screw main engine is powered by a frequency converter, and the flow rate and exhaust pressure of the twin-screw main engine are adjusted to an optimal state by the control main engine through the frequency converter.

[0018] Preferably, the utility model also includes an intelligent energy efficiency control system, which includes a control host, and a temperature sensor and a pressure sensor arranged on the air flow channel; the high-pressure centrifugal fan is powered and driven by a first frequency converter, and the drive motor of the twin-screw host is powered and driven by a second frequency converter, and the first frequency converter, the second frequency converter, the regulating valve, the temperature sensor, and the pressure sensor are all connected to the control host; the energy efficiency control system determines the control parameters in real time according to the data collected by the temperature sensor and the pressure sensor and the actual needs of the user according to the pre-set parameter values, and performs real-time adjustment and control of the first frequency converter of the high-pressure centrifugal fan, the second frequency converter of the twin-screw host drive motor, and the regulating valve of the heat dissipation vent, so that the entire gas delivery equipment operates in a safe and efficient state according to the actual needs of the user.

[0019] Preferably, a centrifuge inlet temperature sensor and a centrifuge inlet pressure sensor are provided at the inlet of the high-pressure centrifugal fan, and a centrifuge outlet temperature sensor and a centrifuge outlet pressure sensor are provided at the outlet of the high-pressure centrifugal fan; a twin-screw exhaust port temperature sensor and a twin-screw exhaust port pressure sensor are provided at the twin-screw exhaust port; and a heat dissipation outlet temperature sensor is provided at the heat dissipation outlet.

[0020] Preferably, the control host is provided with a data processing module, a monitoring module, a safety module, an efficiency module, a communication module and a touch screen for human-computer interaction. Beneficial Effects

[0021] First, the heat dissipation effect is good. The high-speed rotating yin and yang screws of the twin-screw gas conveying equipment have a very high linear speed on the surface, and the heat exchange is good with the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan. In addition, the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan also has a certain cooling effect on the cylinder near the air inlet of the twin-screw main engine. Due to these combined effects, the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan has a good cooling effect on the twin-screw main engine.

[0022] Secondly, it can increase the exhaust flow rate of the twin-screw gas transmission equipment. The centrifugal effect of the pair of yin and yang screws of the twin-screw main unit during high-speed rotation affects the air intake to a certain extent. Due to the centrifugal force generated when the screw rotates, the gas is in a negative pressure state in the area near the air inlet of the twin-screw gas conveying equipment and the volume space of the screw groove near the air inlet of the twin-screw gas conveying equipment, that is, the gas density will become smaller, and the actual air intake at this time will inevitably decrease. After the boost cooling system is added, the gas in the area near the air inlet of the twin-screw gas conveying equipment and the volume space of the screw groove near the air inlet of the twin-screw gas conveying equipment will be transformed into a positive pressure state, that is, the gas density will increase, then, the actual air intake at this time will inevitably increase, and the corresponding exhaust flow rate will also increase.

[0023] Third, the exhaust pressure of the twin-screw gas conveying equipment is increased. As mentioned above, after the pressurized cooling system is added to the area near the air inlet of the twin-screw gas conveying equipment and the volume space of the screw groove near the air inlet of the twin-screw gas conveying equipment, the gas pressure increases, so the actual exhaust pressure of the twin-screw gas conveying equipment will inevitably be increased.

[0024] Fourth, the overall efficiency of the twin-screw gas conveying equipment has been improved. On the one hand, it is the contribution of the cooling mechanism in gas dynamics; on the other hand, it is the efficiency improvement brought about by improving the gas flow and exhaust pressure of the twin-screw gas conveying equipment. More importantly, the energy efficiency control system, through the control strategy of its control software, accurately adjusts the operating status of the high-pressure centrifugal fan and the twin-screw main engine, and accurately adjusts the ratio of the boost value of the high-pressure centrifugal fan to the boost value of the twin-screw main engine in real time, and accurately adjusts the ratio of the air volume of the high-pressure centrifugal fan to the air volume discharged from the heat dissipation vents on the gas collecting cylinder in real time, so as to reasonably control the heat dissipation effect, and adjust in real time and automatically maintain the best energy-saving effect of the entire gas conveying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the gas delivery equipment of the composite structure in the first embodiment;

[0026] Figure 2 It is a local airflow distribution diagram of the composite structure in Example 1;

[0027] Figure 3 It is a structural diagram of the gas delivery equipment of the composite structure in the second embodiment;

[0028] Figure 4 This is a local airflow distribution diagram of the composite structure in Example 2.

[0029] Figure 5 The structure diagram of the energy efficiency control system in the third embodiment

[0030] Inlet filter---1 Filter air inlet---2 High-pressure centrifugal fan---3 High-pressure centrifugal fan exhaust---4 High-pressure centrifugal fan air supply pipe---5 Air collecting cylinder---6 Synchronous gear---7 Twin-screw main engine air inlet---8 Exhaust pipe---9 Female screw---10 Twin-screw exhaust---11 Drive shaft---12 Male screw---13 Cylinder---14 Cooling air outlet---15 High-pressure centrifugal fan air inlet---16 High-pressure centrifugal fan air inlet pipe---17 Inlet filter outlet---18 Jet air flow---19 Jet pipe---20 Reflux hot air---21 Closure---22 Bell mouth---23 Inlet air flow---24 Regulating valve---25 Control host---26 Touch screen---27 Centrifuge inlet temperature sensor---28 Centrifuge outlet temperature sensor---29 Cooling vent temperature sensor---30 Twin-screw exhaust outlet temperature sensor---31 Centrifuge inlet pressure sensor---32 Centrifuge outlet pressure sensor---33 Twin-screw exhaust outlet pressure sensor---34 Data processing module---35 Monitoring module---36 Safety module---37 Efficiency module---38 Communication module---39 First frequency converter---40 Second frequency converter---41 Twin-screw main engine drive motor---42 Remote control interface---43 DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the implementation methods of the present application, not all of the implementation methods; and the structures shown in the accompanying drawings are only schematic and do not represent physical objects. It should be noted that based on these embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0032] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion in this article, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical or equivalent elements in the process, method, article or device including the elements.

[0033] The terms "upper", "lower", "inner", "outer", etc. do not constitute absolute spatial relationship limitations, but are only concepts of relative positions, which can be understood by those skilled in the art. Example 1

[0034] See also Figure 1 and 2 , a composite structure gas conveying equipment, including a twin-screw main unit and a booster cooling system.

[0035] The twin-screw main machine comprises a cylinder body 14, wherein the cylinder body 14 is provided with a female and a male screw (10, 13) meshing with each other, the female and the male screw (10, 13) being connected by a synchronous gear 7, the female and the male screw being connected to an external twin-screw main machine driving motor 42 via a driving shaft 12, the twin-screw main machine driving motor driving the female and the male screw (10, 13) to rotate synchronously, the bottom of the cylinder body 14 is provided with a twin-screw exhaust port 11, the twin-screw exhaust port 11 being connected to an exhaust pipe 9. The upper part of the cylinder body is provided with a twin-screw main machine air inlet 8. The twin-screw main machine driving motor drives the female and male screws to rotate, sucking in gas from the twin-screw main machine air inlet, and as the screws rotate, the gas is gradually compressed, continuously pushed toward the twin-screw exhaust port and discharged from the twin-screw exhaust port.

[0036] The boost cooling system includes a high-pressure centrifugal fan 3 and an air collecting cylinder 6. The air collecting cylinder 6 is installed above the air inlet 8 of the twin-screw main engine and is connected to the air inlet 8 of the twin-screw main engine. A heat dissipation vent 15 is provided on the upper part of the air collecting cylinder 6. In the present embodiment, the heat dissipation vent 15 is a tubular hole, which is convenient for the rapid discharge of the gas after heat exchange. Alternatively, the heat dissipation vent may also be a plurality of groups of exhaust holes opened on the wall of the air collecting cylinder. A regulating valve 25 is provided on the heat dissipation vent, and the air volume flowing through the heat dissipation vent can be controlled by adjusting the opening of the regulating valve, and the opening of the regulating valve is automatically adjusted by the control host of the energy efficiency control system.

[0037] The shape of the gas collecting cylinder 6 is cylindrical, and the lower end is sealed and connected to the twin screw main engine air inlet 8. Of course, the gas collecting cylinder can also adopt other shapes, such as square cylinder, spherical and other conventional shapes.

[0038] In this embodiment, the high-pressure centrifugal fan exhaust port 4 is located above the twin-screw main engine air inlet 8, and the high-pressure centrifugal fan exhaust port 4 is connected to a high-pressure centrifugal fan air supply pipe 5, which is inserted into the gas collecting cylinder 6 and communicated with the twin-screw main engine air inlet 8. The gas ejected from the high-pressure centrifugal fan 3 enters the twin-screw main engine air inlet 8 through the high-pressure centrifugal fan air supply pipe 5, so that the gas density in the twin-screw main engine air inlet 8 increases, the actual air intake volume increases, the corresponding exhaust flow rate of the twin-screw main engine will also increase, and the actual exhaust pressure will inevitably increase accordingly. During operation, a portion of the gas entering the air inlet 8 of the twin screw main engine is taken away by the tooth grooves of the rotating female screw 10 and male screw 13 as the intake air flow 24, compressed by the twin screw main engine, and output through the twin screw exhaust port 11 and the exhaust pipe 9. Another portion of the gas, after encountering the outer cylindrical surface of the female screw 10 and male screw 13 and the inner surface of the cylinder body 14 of the twin screw main engine, is reflected and folded back, enters the gas collecting cylinder, and is discharged from the heat dissipation vent 15 of the gas collecting cylinder. This portion of gas discharged from the heat dissipation vent 15 can take away part of the heat inside the cavity of the twin screw main engine, and has a significant cooling effect on the female screw 10, male screw 13 of the twin screw main engine, and the inner surface of the cylinder body 14 of the twin screw main engine.

[0039] See also Figure 2 In this embodiment, the lower end of the high-pressure centrifugal fan air supply pipe 5 extends into the interior of the air collecting cylinder 6. The height of the heat dissipation vent 15 is higher than the height of the lower port of the high-pressure centrifugal fan air supply pipe 5. In this way, the gas ejected by the high-pressure centrifugal fan first enters the air inlet area of ​​the twin-screw main engine along the high-pressure centrifugal fan air supply pipe 5, and the reflux hot air 21 after heat exchange is discharged upward from the heat dissipation vent 15 of the air collecting cylinder. In this embodiment, the lower end of the high-pressure centrifugal fan air supply pipe 5 is a bell mouth 23 with a small upper part and a large lower part. The surface of the yin and yang screws in the high-speed rotation of the twin-screw main engine has a very high linear velocity, and heat exchanges with the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan, and the heat exchange effect is good. In addition, the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan also has a certain cooling effect on the cylinder near the air inlet of the twin-screw main engine. Due to these combined effects, the high-speed gas sent into the air inlet of the twin-screw main engine by the high-pressure centrifugal fan has a good cooling effect on the twin-screw main engine.

[0040] In this embodiment, the supercharged cooling system further includes an air intake filter 1, which is provided with a filter air inlet 2 and an air intake filter outlet 18, and a high-pressure centrifugal fan air inlet 16 is connected to the air intake filter outlet 18 via a high-pressure centrifugal fan air inlet pipe 17. The air is filtered through the air intake filter 1 to filter out impurities and pollutants therein, thereby ensuring that clean air is inhaled by the whole machine during normal operation. Example 2

[0041] The boost cooling system of the twin-screw gas conveying equipment includes a high-pressure centrifugal fan and an air collecting cylinder. The air collecting cylinder is installed above the air inlet of the twin-screw main engine and is connected to the air inlet of the twin-screw main engine. A heat dissipation vent is provided on the upper part of the air collecting cylinder. The high-pressure centrifugal fan air supply pipe 5 connected to the high-pressure centrifugal fan exhaust port is inserted into the air collecting cylinder 6 and is connected to the air inlet of the twin-screw main engine.

[0042] The difference from Example 1 is that, see Figure 3 , Figure 4 The lower port of the high-pressure centrifugal fan air supply pipe 5 is provided with a closure 22, and the closure is connected with a plurality of groups of jet pipes 20 that diffuse downward. And the plurality of groups of jet pipes 20 are evenly distributed on the closure 22. The jet airflow 19 ejected from the jet pipe 20 can be more effectively and directly ejected to the outer cylindrical surface of the female screw and male screw of the twin-screw main engine, as well as the inner surface of the cylinder of the twin-screw main engine, and the heat exchange efficiency is higher. A part of the gas after heat exchange is turned back upward as the reflux hot air 21 and enters the gas collecting cylinder, and is discharged from the heat dissipation vent 15 of the gas collecting cylinder, and the other part is taken away by the tooth grooves of the rotating female screw and male screw as the intake airflow 24, and is compressed by the twin-screw main engine and output through the twin-screw exhaust port and exhaust pipe. Example 3

[0043] See also Figure 5 The composite structure gas delivery device of the utility model also includes an intelligent energy efficiency control system, which includes a control host 26, and a temperature sensor and a pressure sensor arranged on the air flow channel.

[0044] Specifically, the control host 26 is provided with a data processing module 35 , a monitoring module 36 , a security module 37 , an efficiency module 38 , a communication module 39 , a touch screen 27 and a remote control interface 43 .

[0045] The high-pressure centrifugal fan 3 is powered by the first frequency converter 40, and the air volume and air pressure of the high-pressure centrifugal fan are adjusted to the optimal state by the control host through the frequency converter. The driving motor 42 of the twin-screw main engine is powered by the second frequency converter 41, and the flow rate and exhaust pressure of the twin-screw main engine are adjusted to the optimal state by the control host through the frequency converter. The first frequency converter 40, the second frequency converter 41, and the regulating valve 25 are all connected to the control host 26.

[0046] The touch screen 27 is connected to the control host 26 and is a human-computer interaction interface for inputting operation instructions and displaying various operation information.

[0047] The data processing module 35 is the core of the control host. It is connected to the touch screen 27, various sensors, monitoring module 36, security module 37, efficiency module 38, and communication module 39, and is responsible for processing all data in the entire control process, including data calculation, storage, input and output.

[0048] The monitoring module 36 is connected to the touch screen 27, various sensors, the data processing module 35, the safety module 37, the efficiency module 38, and the communication module 39, and is responsible for monitoring the operating status of the gas delivery equipment.

[0049] The safety module 37 is connected to the touch screen 27, various sensors, the data processing module 35, the monitoring module 36, the efficiency module 38, and the communication module 39, and is responsible for monitoring the safety status of the gas transmission equipment. When an abnormal situation occurs, it will promptly issue an early warning or shutdown information to ensure the safety of the gas transmission equipment.

[0050] The efficiency module 38 is connected to the touch screen 27, various sensors, the data processing module 35, the monitoring module 36, the safety module 37, and the communication module 39. Its function is to monitor, adjust, and optimize the operating efficiency of the gas conveying equipment in real time. Its intervention in the operating efficiency of the gas conveying equipment is to adjust the high-pressure centrifugal fan through the communication module and the first frequency converter, to control the twin-screw main engine drive motor through the communication module and the second frequency converter, and to control the regulating valve through the communication module.

[0051] The communication module 39 is connected to the touch screen 27, various sensors, the data processing module 35, the monitoring module 36, the safety module 37, the efficiency module 38, the first frequency converter 40, the second frequency converter 41, the regulating valve 25, and the remote control interface 43. It is a bridge for data communication between the control host and peripheral devices.

[0052] A centrifuge inlet temperature sensor 28 and a centrifuge inlet pressure sensor 32 are provided at the inlet of the high-pressure centrifugal fan, and a centrifuge outlet temperature sensor 29 and a centrifuge outlet pressure sensor 33 are provided at the outlet of the high-pressure centrifugal fan; a twin-screw exhaust port temperature sensor 31 and a twin-screw exhaust port pressure sensor 34 are provided at the twin-screw exhaust port; and a heat dissipation outlet temperature sensor 30 is provided at the heat dissipation outlet. The above-mentioned temperature sensor and pressure sensor are all connected to the control host 26 to transmit the detection data to the control host 26. The data processing module 35 of the control host 26 processes these data through calculation, and determines the control parameters in real time according to the preset parameter values ​​based on the actual needs of the user, and performs real-time adjustment and control on the second frequency converter 41 of the twin-screw host drive motor, the first frequency converter 40 of the high-pressure centrifugal fan, and the regulating valve 25 of the heat dissipation vent. The ratio of the boost value of the high-pressure centrifugal fan to the boost value of the twin-screw host is adjusted in real time and accurately, and the ratio of the air volume of the high-pressure centrifugal fan to the air volume discharged from the heat dissipation vent on the gas collecting cylinder is adjusted in real time and accurately, so as to reasonably control the heat dissipation effect, and automatically maintain the best energy-saving effect of the entire gas conveying equipment, so that the entire gas conveying equipment can operate in a safe and efficient state according to the actual needs of the user.

[0053] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite gas delivery device, characterized in that: It includes a twin-screw main engine and a pressurized cooling system. The twin-screw main engine includes a cylinder body, a male screw and a female screw. The pressurized cooling system includes at least a high-pressure centrifugal fan and an air collecting cylinder. The high-pressure centrifugal fan is connected to the air inlet of the twin-screw main engine through the air collecting cylinder.

2. The gas delivery device of the composite structure according to claim 1, characterized in that: The high-pressure centrifugal fan exhaust port of the high-pressure centrifugal fan is connected to a high-pressure centrifugal fan air supply pipe, and the high-pressure centrifugal fan air supply pipe extends into the interior of the air collecting cylinder.

3. The gas delivery device of the composite structure according to claim 2, characterized in that: The air collecting cylinder is arranged above the air inlet of the twin-screw main engine, and a heat dissipation vent is arranged on the air collecting cylinder. The height of the heat dissipation vent is higher than the height of the lower port of the air supply pipe of the high-pressure centrifugal fan.

4. The gas delivery device of the composite structure according to claim 2, characterized in that: The lower port of the air supply pipe of the high-pressure centrifugal fan is a bell mouth that is small at the top and large at the bottom.

5. The gas delivery device of the composite structure according to claim 2, characterized in that: The lower port of the high-pressure centrifugal fan air supply pipe is provided with a closure, and the lower port is connected to a plurality of groups of jet pipes diffusing downward, and the plurality of jet pipes are evenly distributed on the lower end surface of the high-pressure centrifugal fan air supply pipe.

6. The composite structure gas delivery device according to claim 3, characterized in that: The heat dissipation vent is a tubular hole.

7. The composite structure gas delivery device according to claim 1, characterized in that: The air inlet of the high-pressure centrifugal fan is connected with an air inlet filter.

8. The gas delivery device of the composite structure according to claim 1, characterized in that: The high-pressure centrifugal fan is powered and driven by a frequency converter.

9. The composite structure gas delivery device according to claim 1, characterized in that: The driving motor of the twin-screw main machine is powered by a frequency converter.

10. The gas delivery device of the composite structure according to claim 3, characterized in that: The heat dissipation vent is provided with a regulating valve.

11. The gas delivery device of the composite structure according to any one of claims 1 to 10, characterized in that: It also includes an intelligent energy efficiency control system, which includes a control host, and a temperature sensor and a pressure sensor arranged on the air flow channel; the high-pressure centrifugal fan is powered and driven by a first frequency converter, and the drive motor of the twin-screw host is powered and driven by a second frequency converter, and the first frequency converter, the second frequency converter, the regulating valve, the temperature sensor, and the pressure sensor are all connected to the control host; the energy efficiency control system determines the control parameters in real time according to the data collected by the temperature sensor and the pressure sensor and the actual needs of the user according to the pre-set parameter values, and performs real-time adjustment and control of the first frequency converter of the high-pressure centrifugal fan, the second frequency converter of the twin-screw host drive motor, and the regulating valve of the heat dissipation vent.

12. The gas delivery device of the composite structure according to claim 11, characterized in that: A centrifuge inlet temperature sensor and a centrifuge inlet pressure sensor are arranged at the inlet of the high-pressure centrifugal fan, and a centrifuge outlet temperature sensor and a centrifuge outlet pressure sensor are arranged at the outlet of the high-pressure centrifugal fan; a twin-screw exhaust port temperature sensor and a twin-screw exhaust port pressure sensor are arranged at the twin-screw exhaust port; a heat dissipation outlet temperature sensor is arranged at the heat dissipation outlet.

13. The gas delivery device of the composite structure according to claim 11, characterized in that: The control host is provided with a data processing module, a monitoring module, a safety module, an efficiency module, a communication module and a touch screen for human-computer interaction.

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