A fairing ventilation system for a rocket assembly plant

Abstract

The application discloses a fairing ventilation system for a rocket general assembly workshop, and relates to the technical field of spaceflight. The fairing ventilation system for the rocket general assembly workshop comprises a fan shell, a first ventilation device and a second ventilation device. The fan shell is provided with a fan air outlet, and an air outlet pipeline is arranged in the fan shell and communicates with the fan air outlet. The first ventilation device and the second ventilation device are arranged in the fan shell. The first ventilation device communicates with the air outlet pipeline through a first pipeline, and the second ventilation device communicates with the air outlet pipeline through a second pipeline. A main air valve is arranged on the first pipeline. A standby air valve is arranged on the second pipeline. The fairing ventilation system for the rocket general assembly workshop is simple in structure, reliable in design, and has ventilation function redundancy.

Description

Technical Field

[0001] This application relates to the field of aerospace technology, and in particular to a fairing ventilation system for rocket assembly plants. Background Technology

[0002] When rockets are horizontally parked in the assembly plant for several days of assembly and testing, clean fresh air needs to be circulated into the fairing to maintain positive pressure inside. The existing fairing ventilation solution is to use the fairing air conditioner to input fresh air. However, the fairing air conditioner is large in size and has a high power, and it needs to be hoisted onto the transport vehicle with each rocket launch, which will delay the launch process. Utility Model Content

[0003] The purpose of this application is to provide a fairing ventilation system for rocket assembly plants, which has a simple structure, reliable design, and redundant ventilation function.

[0004] To achieve the above objectives, this application provides a fairing ventilation system for a rocket assembly plant, comprising: a fan housing, a first ventilation device, and a second ventilation device; wherein, the fan housing is provided with a fan outlet, and an outlet duct is provided inside the fan housing, the outlet duct being connected to the fan outlet; both the first and second ventilation devices are located inside the fan housing, the first ventilation device being connected to the outlet duct via a first duct, and the second ventilation device being connected to the outlet duct via a second duct; a main air valve is provided on the first duct; and a backup air valve is provided on the second duct.

[0005] As shown above, the first pipe is a metal pipe.

[0006] As shown above, the second pipe is a metal pipe.

[0007] As described above, the fan casing includes: a first frame and a second frame; the upper end of the first frame is connected to the lower end of the second frame, forming a double-layer frame; the first ventilation equipment, the main air valve, the second ventilation equipment, and the backup air valve are all installed in the first frame; the fan outlet is installed on the second frame; and the air outlet duct is installed in the second frame.

[0008] As shown above, the outer side of the double-layer frame is covered with a metal skin.

[0009] As described above, the fan casing includes: a first frame and a second frame; the outer side of the first frame is provided with a metal skin to form a lower frame with a first receiving cavity; the outer side of the second frame is provided with a metal skin to form an upper frame with a second receiving cavity, the second receiving cavity being an air outlet duct; the upper end of the lower frame is connected to the lower end of the upper frame; a first through hole is provided on the right side of the upper frame; the fan outlet is located on the outer side of the second frame and is connected to the air outlet duct through the first through hole; a second through hole and a third through hole are provided on the lower side of the upper frame; a first ventilation device, a main air valve, a second ventilation device, and a backup air valve are all located within the lower frame; the first duct is connected to the air outlet duct through the second through hole; the second duct is connected to the air outlet duct through the third through hole.

[0010] As shown above, the first frame is a steel structure frame.

[0011] As shown above, the second frame is a steel structure frame.

[0012] As shown above, the first ventilation device is an axial flow fan; the second ventilation device is an axial flow fan.

[0013] As mentioned above, this also includes: a medium-efficiency filter and a high-efficiency filter; both the medium-efficiency filter and the high-efficiency filter are installed inside the fan housing; the air outlet duct is connected to the air inlet of the medium-efficiency filter, the air outlet of the medium-efficiency filter is connected to the air inlet of the high-efficiency filter, and the air outlet of the high-efficiency filter is connected to the air outlet of the fan.

[0014] The fairing ventilation system proposed in this application for rocket assembly plant has a simple structure, no evaporator or condenser, occupies little space, can be stored in rocket assembly plant for a long time, has a reliable design, and has redundant ventilation function. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of one embodiment of a fairing ventilation system used in a rocket assembly plant. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 As shown, this application provides a fairing ventilation system for a rocket assembly plant, comprising: a fan housing 1, a first ventilation device 2, and a second ventilation device 3. The fan housing 1 is provided with a fan outlet 4, and an outlet duct is provided inside the fan housing 1, the outlet duct being connected to the fan outlet 4; both the first ventilation device 2 and the second ventilation device 3 are located inside the fan housing 1, the first ventilation device 2 being connected to the outlet duct via a first duct, and the second ventilation device 3 being connected to the outlet duct via a second duct; a main air valve 5 is provided on the first duct; and a backup air valve 6 is provided on the second duct.

[0019] Specifically, the first ventilation device 2 and the second ventilation device 3 are redundant. Under normal conditions, the second ventilation device 3 (i.e., the standby fan) is in the off state, and the standby air valve 6 is in the closed state. When the first ventilation device 2 (i.e., the main fan) malfunctions, the main air valve 5 is closed, the standby air valve 6 is opened, and the second ventilation device 3 (i.e., the standby fan) is turned on to continue ventilation.

[0020] The fairing ventilation system for rocket assembly plant described in this application does not include evaporator and condenser units. It is lightweight, small in size, and inexpensive. However, it lacks temperature and humidity control functions and is only used inside the rocket assembly plant. The fairing ventilation system for rocket assembly plant described in this application does not interfere with the launch process of the fairing air conditioning system and does not need to be transported with the rocket.

[0021] Furthermore, the first type of conduit is a metal conduit, but it is not limited to metal conduits.

[0022] Furthermore, the second conduit is a metal conduit, but is not limited to metal conduits.

[0023] Furthermore, as an embodiment, the fan housing 1 includes: a first frame and a second frame; the upper end of the first frame is connected to the lower end of the second frame, forming a double-layer frame; the first ventilation device 2, the main air valve 5, the second ventilation device 3 and the backup air valve 5 are all disposed in the first frame; the fan outlet 4 is disposed on the second frame; and the air outlet duct is disposed in the second frame.

[0024] Furthermore, the outer side of the double-layer frame is covered with a metal skin.

[0025] Furthermore, as another embodiment, the fan housing 1 includes: a first frame and a second frame; the outer side of the first frame is provided with a metal skin to form a lower frame with a first receiving cavity; the outer side of the second frame is provided with a metal skin to form an upper frame with a second receiving cavity, the second receiving cavity being an air outlet duct; the upper end of the lower frame is connected to the lower end of the upper frame; a first through hole is provided on the right side of the upper frame; the fan outlet 4 is provided on the outer side of the second frame and is connected to the air outlet duct through the first through hole; a second through hole and a third through hole are provided on the lower side of the upper frame; the first ventilation device 2, the main air valve 5, the second ventilation device 3, and the backup air valve 6 are all provided in the lower frame; the first duct is connected to the air outlet duct through the second through hole; the second duct is connected to the air outlet duct through the third through hole.

[0026] Specifically, the air duct structure (i.e., the air outlet duct) is formed by the second frame and the metal skin. The first ventilation device 2, the main air valve 5, the second ventilation device 3, and the backup air valve 5 are all installed on the lower layer of the double-layer frame.

[0027] Furthermore, the first frame is a steel structure frame, but it is not limited to a steel structure frame.

[0028] Furthermore, the second frame is a steel structure frame, but it is not limited to steel structure frames.

[0029] Furthermore, the first ventilation device 2 is an axial flow fan, but it is not limited to an axial flow fan; it can also be other devices with ventilation functions.

[0030] Furthermore, the second ventilation device 3 is an axial flow fan, but it is not limited to an axial flow fan; it can also be other devices with ventilation functions.

[0031] Furthermore, the fairing ventilation system used in the rocket assembly plant also includes: a medium-efficiency filter 7 and a high-efficiency filter 8; both the medium-efficiency filter 7 and the high-efficiency filter 8 are installed inside the fan housing 1; the air outlet duct is connected to the air inlet of the medium-efficiency filter 7, the air outlet of the medium-efficiency filter 7 is connected to the air inlet of the high-efficiency filter 8, and the air outlet of the high-efficiency filter 8 is connected to the air outlet 4 of the fan.

[0032] Specifically, the medium-efficiency filter 7 and the high-efficiency filter 8 can capture (or block) airborne particles of different sizes. Preferably, the medium-efficiency filter 7 is used to intercept particles of 1-10 μm, and the high-efficiency filter 8 is used to intercept particles larger than 0.3 μm. The air generated by the first ventilation device 2 or the second ventilation device 3 passes sequentially through the medium-efficiency filter 7, the high-efficiency filter 8, and the fan outlet 4, thus filtering air impurities and improving the cleanliness of the output airflow. The medium-efficiency filter 7 and the high-efficiency filter 8 can be existing, readily available products.

[0033] Furthermore, as an example, both the medium-efficiency filter 7 and the high-efficiency filter 8 are disposed in the second frame of the fan housing 1.

[0034] Furthermore, as another embodiment, both the medium-efficiency filter 7 and the high-efficiency filter 8 are disposed within the upper frame of the fan housing 1.

[0035] The fairing ventilation system proposed in this application for rocket assembly plant has a simple structure, no evaporator or condenser, occupies little space, can be stored in rocket assembly plant for a long time, has a reliable design, and has redundant ventilation function.

[0036] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the scope of protection of this application is intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application. Obviously, those skilled in the art can make various alterations and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of protection of this application and its equivalents, this application also intends to include these modifications and variations.

Claims

1. A fairing ventilation system for a rocket assembly plant, characterized in that, include: Fan casing, primary ventilation equipment, and secondary ventilation equipment; The fan casing is equipped with a fan outlet, and the fan casing is equipped with an air outlet duct, which is connected to the fan outlet. Both the first ventilation device and the second ventilation device are installed inside the fan casing. The first ventilation device is connected to the air outlet duct through the first pipe, and the second ventilation device is connected to the air outlet duct through the second pipe. A main air valve is installed on the first pipeline; A backup air valve is installed on the second pipeline.

2. The fairing ventilation system for rocket assembly plant according to claim 1, characterized in that, The first pipe is a metal pipe.

3. The fairing ventilation system for rocket assembly plant according to claim 1, characterized in that, The second pipe is a metal pipe.

4. The fairing ventilation system for rocket assembly plant according to claim 1, characterized in that, The fan casing includes: a first frame and a second frame; The upper end of the first frame is connected to the lower end of the second frame, forming a double-layer frame; The first ventilation equipment, the main air valve, the second ventilation equipment, and the backup air valve are all installed inside the first frame; The fan outlet is located on the second frame. The air outlet duct is located inside the second frame.

5. The fairing ventilation system for a rocket assembly plant according to claim 4, characterized in that, The outer side of the double-layer frame is covered with a metal skin.

6. The fairing ventilation system for a rocket assembly plant according to claim 1, characterized in that, The fan casing includes: a first frame and a second frame; The outer side of the first frame is provided with a metal skin to form a lower frame with a first receiving cavity; The outer side of the second frame is provided with a metal skin to form an upper frame with a second receiving cavity, which is an air outlet duct. The upper end of the lower frame is connected to the lower end of the upper frame; The upper frame has a first through hole on its right side; the fan outlet is located on the outside of the second frame and is connected to the air outlet duct through the first through hole. The lower side of the upper frame is provided with a second through hole and a third through hole; The first ventilation equipment, main air valve, second ventilation equipment, and backup air valve are all installed in the lower frame body; The first pipe is connected to the air outlet pipe through the second through hole; The second pipe is connected to the air outlet pipe through the third through hole.

7. The fairing ventilation system for a rocket assembly plant according to claim 4 or 6, characterized in that, The first frame is a steel structure.

8. The fairing ventilation system for a rocket assembly plant according to claim 4 or 6, characterized in that, The second frame is a steel structure frame.

9. The fairing ventilation system for a rocket assembly plant according to claim 1, characterized in that, The first ventilation device is an axial flow fan; the second ventilation device is an axial flow fan.

10. The fairing ventilation system for a rocket assembly plant according to claim 1, characterized in that, Also includes: Medium-efficiency filters and high-efficiency filters; Both the medium-efficiency filter and the high-efficiency filter are installed inside the fan housing; the air outlet duct is connected to the air inlet of the medium-efficiency filter, the air outlet of the medium-efficiency filter is connected to the air inlet of the high-efficiency filter, and the air outlet of the high-efficiency filter is connected to the air outlet of the fan.

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