CN216008956U - Low-pressure cabin system - Google Patents

Abstract

The utility model provides a low-pressure cabin system which comprises a cabin, a sealing device, a power mechanism, a working mechanism and a transmission mechanism and is used for internal air circulation of the cabin. The working mechanism is arranged inside the cabin body, the power mechanism is arranged outside the cabin body, and the transmission mechanism is connected with the power mechanism and the working mechanism. The power mechanism is arranged outside the cabin body, and the working mechanism is arranged inside the cabin body, so that the occupation of the internal space of the cabin body is reduced on the premise of ensuring the requirement of the cabin body, and the effective utilization rate of the internal space of the cabin body is improved; meanwhile, the working mechanism is positioned outside the cabin body, the influence of working noise of the power mechanism on the interior of the cabin body is reduced, and the noise in the cabin body is reduced accordingly.

Description

Low-pressure cabin system

Technical Field

The utility model relates to a low-pressure cabin system.

Background

In the low-pressure cabin system, the internal environment of the cabin is kept in a low-pressure state to meet the low-pressure requirements of experiments and other work, and meanwhile, the cabin needs good sealing performance to maintain the stability of the internal environment of the cabin. Usually, a fan is used to enhance the air flow in the internal environment of the closed cabin, so as to enhance the air circulation in the cabin and to promote the internal environment of the cabin to be balanced. In the low-pressure cabin system, the motor is used as a power source of the fan, the power of the motor is transmitted to the fan through the transmission mechanism, and the fan, the motor and the transmission mechanism are all arranged in the cabin body so as to facilitate the sealing of the cabin body.

The construction and maintenance costs of the closed cabin are high, and the effective internal space of the closed cabin is an important resource. The motors are arranged in the cabin body to occupy a certain cabin body space, so that the effective utilization rate of the internal space of the closed cabin body is reduced. Usually, the structure of the fan, the motor and the transmission mechanism is optimized, so that the volume of the fan and the motor is reduced to reduce the occupation of the internal space of the cabin body, and the effective utilization rate of the internal space of the cabin body is improved. However, the effect of improving the effective utilization rate of the internal space of the cabin body is limited by the mode of structural optimization.

Meanwhile, the motor can generate noise in the working process, the noise is more obvious when the motor is used in the closed cabin, the noise in the cabin is enhanced, and personnel are not used for developing work in the cabin. The structure of the motor, the transmission mechanism and the fan is improved, and the manufacturing and installation precision is improved, so that the noise generated in the working process is reduced. However, the noise reduction effect inside the cabin is limited by the structural improvement and the accuracy improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of low utilization rate of effective space in a low-pressure cabin and high noise in the cabin in the prior art, and provides a low-pressure cabin system.

The utility model solves the technical problems through the following technical scheme:

the utility model provides a low pressure cabin body system, its includes the cabin body, sealing device, one set or many sets of mutually independent fan device, one set the fan device includes a set of power unit, a set of operating device and a set of drive mechanism, drive mechanism connects power unit with operating device, the fan device is used for the inside air cycle of the cabin body, a serial communication port, operating device sets up the inside of the cabin body, power unit sets up the outside of the cabin body, the locating hole has been seted up on the cabin body, power unit's power passes the locating hole is followed the outside transmission of the cabin body reaches the inside of the cabin body, sealing device seal in locating hole department.

In the scheme, the cabin body is a closed cabin body, and the internal environment of the cabin body is maintained in a low-pressure state during working so as to meet working requirements of experiments and the like. The working mechanism is used for promoting air circulation in the cabin body, and the power mechanism is a power source and provides power for the working mechanism. The number of fan units is determined according to the actual requirements of the system.

The power mechanism is arranged outside the cabin body, and the working mechanism is arranged inside the cabin body, so that the occupation of the fan device on the internal space of the cabin body is reduced, and the effective utilization rate of the internal space of the cabin body is improved. Meanwhile, the closed cabin body is usually customized and constructed, the construction cost is high, the use space has high value, and the improvement of the utilization efficiency of the space in the cabin is the improvement of the value of the closed cabin body.

The positioning hole is formed in the cabin body, so that the power outside the cabin body is transmitted to the interior of the cabin body, namely the power of the power mechanism is transmitted to the interior of the cabin body to drive the working mechanism. And the sealing device is used for sealing the positioning hole, so that the sealing performance of the cabin body is ensured, and the stability of the internal environment of the cabin body is maintained.

By arranging the power mechanism outside the cabin, noise generated when the power mechanism works is isolated outside the cabin, the influence of the working noise of the power mechanism on the inside of the cabin is reduced, and the noise inside the cabin is reduced accordingly.

Preferably, the sealing device includes a mounting seat and a sealer, the mounting seat is fixedly mounted at the positioning hole and forms a seal with the cabin, the transmission mechanism is positioned at the positioning hole through the mounting seat, and the sealer is sealed between the mounting seat and the transmission mechanism.

In the scheme, the sealer forms a seal with the mounting seat and the transmission mechanism, and the mounting seat forms a seal with the cabin body so as to realize the seal of the cabin body at the positioning hole.

The contact part of the mounting seat and the cabin body forms a seal so as to ensure the tightness of the cabin body. The mounting seat can be hermetically connected with the cabin body at the positioning hole by welding, threads, bonding and other sealing connection modes.

The mounting seat is fixed at the positioning hole and used for positioning the transmission mechanism at the positioning hole. The mounting seat is fixed at the positioning hole, so that the mounting seat and the cabin body can be conveniently manufactured and processed together in the manufacturing and mounting processes of the low-pressure cabin body system, the requirements of the size and the position precision of the positioning hole are met, the verticality of the power mechanism and the transmission mechanism and the outer wall of the cabin body is met, and the verticality of the working mechanism and the outer wall of the cabin body is met. When the axis of the working mechanism is parallel to the floor of the cabin body, namely is vertical to the outer wall of the cabin body, the effect of promoting the air circulation in the cabin body by the working mechanism is optimal.

Preferably, the mounting seat is a flange.

In this scheme, adopt the flange as the mount pad, the flange forms sealing connection at the locating hole department with the cabin body to be used for location drive mechanism. The flange is a common structure and has a simple structure. And when the flange is connected with other parts, the connection strength is high and the sealing performance is good.

Preferably, the sealer is a magnetic fluid sealer.

In the scheme, a magnetic fluid sealer is used as a sealer to form sealing with the connector and the transmission mechanism. When the magnetic fluid is injected into the gap of the magnetic field, the magnetic fluid can fill the whole gap to form a liquid O-shaped sealing ring which can transmit the rotary motion into the sealed container. The magnetic fluid sealer has no abrasion, excellent working reliability and long service life; the magnetic fluid has good sealing vacuum degree, low leakage rate and high sealing performance; the magnetic fluid seal can meet the requirements of various devices from low speed to high speed, from low pressure to high pressure and from room temperature to high temperature, and has strong adaptability. The magnetic fluid sealer is designed in the mechanism, power can be conducted into the cabin body through rotation of the mechanical structural member outside the cabin body in a pressure environment, and the pressure-bearing sealing effect of the cabin body penetrating member is guaranteed.

Preferably, the low-pressure cabin system further comprises an air box mechanism, the air box mechanism is arranged inside the cabin, and the working mechanism is arranged in the air box mechanism.

In the scheme, the air box mechanism is a matched structure, the main functions of the air box mechanism are airflow shaping and wind power utilization, the requirement pertinence adjustment of a specific low-pressure cabin body system can be combined, and the effective space size at least meets the arrangement and working requirements of the working mechanism and the transmission mechanism. The bellows mechanism is arranged into a shell structure with a regular appearance so as to optimize the air circulation in the cabin.

Preferably, one or more groups of working mechanisms are arranged in one group of bellows mechanisms, and the number of the bellows mechanisms is matched with the number of the working mechanisms.

In this scheme, a set of or multiunit operating device is placed to bellows mechanism inside, adjusts according to system's actual need, and bellows mechanism keeps supporting with operating device mutually.

A plurality of groups of working mechanisms are arranged in one group of air box mechanisms, so that strong wind power can be generated in the one group of air box mechanisms, and air circulation is enhanced. Meanwhile, a plurality of groups of working mechanisms in the same air box mechanism share one group of matched facilities, so that the overall structure of the system can be simplified, the structure is more compact, the arrangement is convenient, and the cost is reduced.

Preferably, the cabin body is internally provided with an air outlet duct and a return air duct, the bellows mechanism is provided with an air outlet and a return air inlet, the air outlet is communicated with the air outlet duct, and the return air inlet is communicated with the return air duct.

In this scheme, air-out wind channel and return air wind channel are supporting structure, and its main effect is the control air current. The wind port of the wind box mechanism is communicated with the wind channel inside the cabin body, and wind power generated by the working mechanism is diffused to the space inside the cabin body through the wind outlet and the wind outlet channel and is sucked through the return wind channel and the return wind port to form air circulation.

Preferably, the operating mechanism is a centrifugal fan.

In the scheme, a centrifugal fan is used as a working mechanism to generate wind power and promote air circulation in the cabin body. The centrifugal fan sucks fluid and then throws the fluid out from the circumferential direction by using centrifugal force, and the centrifugal fan is commonly used for ventilation, heat dissipation and the like of the annular test equipment.

And the air guide groove is formed in the fan, so that the air quantity is increased, the air flow is more concentrated, and the noise of the fan during working can be reduced.

Preferably, the working mechanism is a centrifugal fan, two sets of the working mechanisms are arranged in one set of the bellows mechanism, and the rotation directions of the two sets of the working mechanisms are opposite.

In this scheme, place two sets of operating device that revolve to opposite in the bellows mechanism, ensure that two sets of operating device produce the same wind direction together during operation, promote pnematic efficiency. The air outlet and the air return opening are arranged in the radial direction of the centrifugal fan, so that the air at the air return opening is sucked by the fan, and the output acting force of the air outlet on the air flow is the largest.

For example, the wind directions generated by the two groups of working mechanisms are clockwise and anticlockwise, and the two groups of working mechanisms are arranged on two sides in the air box mechanism; on two sides in the air box mechanism, the wind directions generated by the two groups of working mechanisms are consistent; and the wind directions generated by the two groups of working mechanisms are consistent in the middle of the air box mechanism.

Preferably, the low-pressure cabin system further comprises a preset medium, the preset medium is arranged in the bellows mechanism, and the preset medium is dispersed and filled in the cabin through air circulation of the cabin.

In the scheme, the preset medium is used for enabling the internal environment index of the cabin body to meet the system working requirement. The preset medium is arranged inside the bellows mechanism, volatilizes and circulates along with the airflow under the action of the working mechanism, and is filled in the internal space of the cabin, so that the internal environment of the cabin meets the working requirements.

The preset media comprise a wet medium, a cold medium and a hot medium which are respectively used for adjusting the humidity and the temperature of the internal environment of the cabin body.

Preferably, a partition board is arranged inside the cabin body, the partition board divides the cabin body into an air box chamber and a working chamber which are independent of each other, and the air box mechanism is arranged in the air box chamber.

In the scheme, the partition plate is arranged in the cabin body to isolate the air box mechanism from the working environment in the cabin body, so that the arrangement of devices in the working chamber is reduced, and the environmental controllability in the working chamber is improved. Meanwhile, the partition board also plays a decoration role, and facilitates the deployment of the interior of the cabin body.

Preferably, the cabin body is internally provided with a partition board, the partition board divides the cabin body into an air box chamber and a working chamber which are independent of each other, the air box mechanism is arranged in the air box chamber, the air outlet duct is communicated with the air box chamber and the working chamber, and the air return duct is communicated with the air box chamber and the working chamber.

In the scheme, the partition plate is arranged in the cabin body to isolate the air box mechanism from the working environment in the cabin body, so that the arrangement of devices in the working chamber is reduced, and the environmental controllability in the working chamber is improved. And the working chamber and the air box chamber are communicated through the air outlet duct and the air return duct, so that the wind power generated by the working mechanism is transmitted to the working chamber.

Preferably, the power mechanism is a motor, and the motor can perform variable frequency control.

In this scheme, adopt the motor as power supply of power unit, the motor is the power component commonly used, and the technology is mature, and the model specification is complete, can select suitable motor model according to the demand of system and the concrete structure of operating device. Through motor frequency conversion control, realize the regulation to cabin body internal environment, the motor moves fast under high-power, makes cabin body internal environment reach the operating requirement fast, after the cabin internal environment tends to stabilize, turns down motor frequency, can reduce the influence of noise and wind speed flow to cabin internal environment.

The positive progress effects of the utility model are as follows:

through arranging power unit to cabin body outside, arrange operating device in cabin body inside, under the prerequisite of guaranteeing cabin body demand, reduce the fan device and to the occupation of cabin body inner space, improve the effective utilization ratio of cabin interior space, provide positive support for the structural optimization of cabin body inside. The working mechanism is arranged outside the cabin body, the influence of working noise of the power mechanism on the interior of the cabin body is reduced, and the noise in the cabin body is reduced accordingly.

Drawings

Fig. 1 is a first perspective structural view of the low pressure cabin system of the present invention.

Fig. 2 is a cross-sectional view taken at a-a in fig. 1.

Fig. 3 is a cross-sectional view at B-B in fig. 1.

Fig. 4 is a partial enlarged view at I in fig. 2.

FIG. 5 is a second perspective view of the low pressure enclosure system of the present invention.

Fig. 6 is a third perspective structural view of the low pressure cabin system of the present invention.

Fig. 7 is a cross-sectional view at C-C in fig. 6.

Fig. 8 is a cross-sectional view taken at D-D in fig. 6.

Fig. 9 is a cross-sectional view at E-E in fig. 6.

Description of reference numerals:

a cabin body 10, a positioning hole 16, a partition plate 13, a wind box chamber 14, a working chamber 15,

A fan device 20, a power mechanism 21, a transmission mechanism 22, an operating mechanism 23,

A sealing device 30, a mounting seat 31, a sealer 32,

An air box mechanism 40, an air outlet 41, an air return opening 42,

An air outlet duct 11, an air return duct 12,

Presetting media 43

Detailed Description

The utility model is further illustrated by the following examples, which are not intended to limit the scope of the utility model.

As shown in FIGS. 1-9, the present invention provides a low pressure tank system.

As shown in FIG. 8, the low pressure nacelle system includes a nacelle 10, 4 sets of fan assemblies 20, and 2 sets of bellows mechanisms 40. The fan device 20 includes a power mechanism 21, a transmission mechanism 22 and a working mechanism 23, and the transmission mechanism 22 is connected to the working mechanism 23 and the power mechanism 21. The working mechanisms 23 are arranged outside the cabin 10, the working mechanisms 23 are arranged inside bellows mechanisms 40 inside the cabin 10, and two sets of working mechanisms 23 are placed inside one set of bellows mechanisms 40.

The cabin 10 is a closed cabin 10, and the internal environment of the cabin 10 is maintained in a low pressure state during operation, so as to meet the working requirements of experiments and the like. The working mechanism 23 is used for promoting the air circulation inside the cabin 10, and the power mechanism 21 is a power source for providing power for the working mechanism 23. The number of fan units 20 is determined according to the actual requirements of the system.

The cabin 10 is provided with a positioning hole 16, and the transmission mechanism 22 passes through the positioning hole 16 and is connected with the power mechanism 21 and the working mechanism 23.

The low pressure chamber system further comprises a sealing means 30, the sealing means 30 being used for sealing the chamber 10 at the location hole 16. The sealing device 30 comprises a mounting 31 and a sealer 32. The mounting seat 31 is fixedly connected to the cabin 10 at the positioning hole 16, and the mounting seat 31 is used for positioning the transmission mechanism 22. The mounting seat 31 forms a sealing connection with the cabin 10, and the sealer 32 forms a seal with the transmission mechanism 22 and the mounting seat 31 to seal the cabin 10 at the positioning hole 16.

As shown in FIG. 2, a partition plate 13 is provided inside the nacelle 10, the partition plate 13 divides the space inside the nacelle 10 into two parts, a working chamber 15 and a bellows chamber 14, and a bellows mechanism 40 is provided inside the bellows chamber 14.

As shown in fig. 7, the top of the bellows mechanism 40 is provided with an air outlet 41; as shown in fig. 9, the bottom of the bellows mechanism 40 is provided with an air return opening 42. As shown in fig. 2, an air outlet duct 11 is disposed inside the cabin 10, and the air outlet duct 11 is connected to the air outlet 41, and passes through the bellows chamber 14 and enters the working chamber 15.

As shown in fig. 3, a grid is provided on the partition 13, the grid is the return air duct 12, and the grid is communicated with the working chamber 15 and the air box chamber 14. The grill is located at the bottom of the partition 13 corresponding to the position of the return air opening 42 of the bellows mechanism 40.

Under the action of the working mechanism 23, the air in the working chamber 15 is sucked into the air box mechanism 40 through the grille and the air return opening 42, and then is conveyed into the working chamber 15 through the air outlet 41 and the air outlet channel, so as to form air circulation.

As shown in FIG. 8, the low pressure tank system further comprises a predetermined medium 43. A set of pre-set media 43 is provided within the set of bellows mechanisms 40. The preset media 43 fills the internal environment of the chamber 10 by circulating air inside the chamber 10, so that the internal environmental index of the chamber 10 meets the system working requirement. The set of predetermined mediums 43 includes a wet medium, a cold medium and a hot medium for adjusting the humidity and the temperature of the internal environment of the cabin 10, respectively.

The operating mechanism 23 is a centrifugal fan. The centrifugal fan sucks fluid and then throws the fluid out from the circumferential direction by using centrifugal force, and the centrifugal fan is commonly used for ventilation, heat dissipation and the like of the annular test equipment.

And the fan 23 is provided with an air guide groove (not shown in the figure), so that the air quantity is increased, the air flow is more concentrated, and the noise of the fan 23 during working can be reduced.

The air outlet 41 and the air return opening 42 are respectively arranged at the top and the bottom of the air box mechanism 40 and are positioned in the circumferential direction of the fan; the fan draws in air at the return air inlet 42 and provides the greatest force on the air flow at the outlet 41.

Meanwhile, two groups of working mechanisms 23 with opposite rotation directions are arranged in the air box mechanism 40, so that the two groups of working mechanisms 23 can generate the same wind direction when working together, and the wind power efficiency is improved.

The power mechanism 21 is a motor capable of performing variable frequency control. The motor is a common power element, the technology is mature, the model specification is complete, and a proper motor model can be selected according to the requirement of the system and the specific structure of the working mechanism 23. The regulation of the internal environment of the cabin body 10 is realized through the variable frequency control of the motor, the motor runs quickly under high power, the internal environment of the cabin body 10 can reach the working requirement quickly, and when the internal environment tends to be stable, the motor frequency is reduced, so that the influence of noise and wind speed flow on the internal environment of the cabin can be reduced.

The mount 31 is a flange. The flanges are fixed by welding at the location holes 16 and form a seal with the cabin 10 at the welded location. The flange has simple structure, and when the flange is connected with other parts, the connection strength is high and the sealing performance is good.

The mounting seat 31 is fixed at the location of the location hole 16, which facilitates the manufacturing process of the mounting seat 31 and the cabin 10 together during the manufacturing and installation process of the low-pressure cabin system, so as to ensure the dimensional and positional accuracy requirements at the location of the location hole 16. Ensuring the perpendicularity of the motor and transmission mechanism 22 and the outer wall of the cabin 10, and thus the fan and the outer wall of the cabin 10. When the axis of the fan is parallel to the floor of the cabin 10, i.e. perpendicular to the outer wall of the cabin 10, the pneumatic effect of the fan on the system is optimal.

The seal 32 is a magnetic seal 32 that forms a seal with the flange and the drive mechanism 22. The magnetic fluid sealer 32 has no abrasion, excellent working reliability and long service life; the magnetic fluid has good sealing vacuum degree, low leakage rate and high sealing performance; the magnetic fluid seal can meet the requirements of various devices from low speed to high speed, from low pressure to high pressure and from room temperature to high temperature, and has strong adaptability. By adopting the magnetic fluid sealer 32, power can be transmitted to the rotating shaft of the fan in the cabin 10 through the rotation of the motor outside the cabin 10 and the shaft of the transmission mechanism 22 under the pressure environment, and the pressure-bearing sealing effect of the cabin 10 penetrating members is ensured.

The bellows mechanism 40 is a matched structure, and the main functions of the bellows mechanism are airflow shaping and wind force utilization, and the bellows mechanism is arranged according to the number of the power mechanisms 21, and the effective space size of the bellows mechanism meets the arrangement and working requirements of the working mechanism 23 and the transmission mechanism 22. The bellows mechanisms 40 are arranged in a regular housing configuration to optimize air circulation within the enclosure 10.

Meanwhile, the two groups of working mechanisms 23 share the matched structures such as the air box mechanism 40, the air outlet channel and the air inlet grille, and the number of the matched structures is reduced.

The power mechanism 21 is disposed outside the cabin 10, and the working mechanism 23 is disposed inside the cabin 10, so as to reduce the occupation of the fan device 20 on the internal space of the cabin 10 and improve the effective utilization rate of the internal space of the cabin 10.

The positioning holes 16 are formed in the cabin 10 to transmit the power outside the cabin 10 to the inside of the cabin 10, that is, the power of the power mechanism 21 is transmitted to the inside of the cabin 10 to drive the working mechanism 23. The positioning hole 16 is sealed by the sealing device 30, so as to ensure the sealing performance of the cabin 10 and maintain the stability of the internal environment of the cabin 10.

By arranging the power mechanism 21 outside the cabin 10, noise generated when the power mechanism 21 works is isolated outside the cabin 10, thereby reducing the influence of the noise of the power mechanism 21 on the inside of the cabin 10 and reducing the noise inside the cabin 10.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims (13)

1. The utility model provides a low pressure cabin body system, its includes the cabin body, sealing device, one set or many sets of mutually independent fan device, one set the fan device includes a set of power unit, a set of operating device and a set of drive mechanism, drive mechanism connects power unit with operating device, the fan device is used for the inside air cycle of the cabin body, a serial communication port, operating device sets up the inside of the cabin body, power unit sets up the outside of the cabin body, the locating hole has been seted up on the cabin body, power unit's power passes the locating hole is followed the outside transmission of the cabin body reaches the inside of the cabin body, sealing device seal in locating hole department.

2. The low pressure hull system according to claim 1, wherein the sealing means comprises a mounting seat and a sealer, the mounting seat is fixedly mounted at the positioning hole and forms a seal with the hull, the transmission mechanism is positioned at the positioning hole by the mounting seat, and the sealer is sealed between the mounting seat and the transmission mechanism.

3. The low pressure hull system according to claim 2, wherein the mounting is a flange.

4. The low pressure canister system of claim 2 wherein the seal is a magnetic fluid seal.

5. The low pressure pod system of claim 1 further comprising a bellows mechanism disposed within the interior of the pod, the operating mechanism being disposed within the bellows mechanism.

6. The low pressure canister system of claim 5 wherein one or more working mechanisms are disposed within one of the bellows mechanisms, the number of bellows mechanisms matching the number of working mechanisms.

7. The low pressure cabin system of claim 5 wherein the cabin has an outlet air duct and a return air duct disposed therein, and the bellows mechanism has an outlet air opening and a return air opening, the outlet air opening being in communication with the outlet air duct and the return air opening being in communication with the return air duct.

8. The low pressure hull system according to claim 1, wherein said operating mechanism is a centrifugal fan.

9. The low pressure canister system of claim 6 wherein the working mechanisms are centrifugal fans and wherein two of the working mechanisms are disposed within one of the bellows mechanisms and wherein the two working mechanisms are rotated in opposite directions.

10. The low pressure cabin system of claim 5, further comprising a predetermined medium disposed within the bellows mechanism, the predetermined medium being dispersed and filled in the cabin by air circulation of the cabin.

11. The low pressure hull system according to claim 5, wherein the hull is provided with a partition inside, the partition dividing the hull into a bellows chamber and a working chamber, which are independent of each other, the bellows mechanism being arranged in the bellows chamber.

12. The low pressure cabin system of claim 7 wherein the cabin has a partition inside the cabin, the partition dividing the cabin into a bellows chamber and a working chamber that are independent of each other, the bellows mechanism being disposed within the bellows chamber, the outlet duct communicating the bellows chamber with the working chamber, and the return duct communicating the bellows chamber with the working chamber.

13. The low pressure hull system according to claim 1, wherein the power mechanism is a motor, and the motor is capable of frequency conversion control.

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