CN113653526A - Mechanical energy storage type emergency passive phase change temperature control system - Google Patents
Mechanical energy storage type emergency passive phase change temperature control system Download PDFInfo
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- CN113653526A CN113653526A CN202110967259.3A CN202110967259A CN113653526A CN 113653526 A CN113653526 A CN 113653526A CN 202110967259 A CN202110967259 A CN 202110967259A CN 113653526 A CN113653526 A CN 113653526A
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- energy storage
- mechanical energy
- temperature control
- gear
- control system
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
- F16H33/04—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought
- F16H33/06—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on spring action
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a mechanical energy storage type emergency passive phase change temperature control system, and belongs to the technical field of temperature control. The problems of complex structure, poor reliability and poor stability of the underground space emergency aeration cooling device are solved. The underground ventilation system comprises a mechanical energy storage device, an adjustable ventilation device and a temperature control system, wherein the adjustable ventilation device is used for ventilating and cooling an underground space, the mechanical energy storage device stores energy when the adjustable ventilation device is powered normally, the mechanical energy storage device releases energy to drive the adjustable ventilation device to work when the adjustable ventilation device is powered off, and the temperature control system is used for monitoring the environment temperature and controlling the mechanical energy storage device and the adjustable ventilation device to work according to the environment temperature. The invention integrates mechanical energy storage and phase change heat, adopts the modularized vortex spring energy storage unit, has better expansibility of the system, and can improve the stability of the system and realize long-time temperature control effect.
Description
Technical Field
The invention belongs to the technical field of temperature control, and particularly relates to a mechanical energy storage type emergency passive phase change temperature control system.
Background
China is one of the countries with frequent occurrence of natural disasters and sudden accidents in the world. Emergency refuge facilities such as civil air defense projects, national defense projects, refuge chambers and the like can provide safe refuge places for people in wartime and after disasters, and are an important defense line for guaranteeing the life safety of people. In wartime and after disasters, emergency refuge facilities such as civil air defense projects, national defense projects and refuge chambers are very likely to be in a state of being isolated from the external environment such as water cut-off, power cut-off and sealing, the indoor temperature is continuously raised by heat dissipation of personnel and equipment, and if the temperature is not lowered in time, the life safety of refuge personnel can be threatened and the usability of high-performance equipment is influenced. Therefore, the problem of refuge chamber temperature control under extreme conditions becomes a problem to be solved.
According to the search, related underground space aeration cooling devices are available at present, for example, the Chinese patent with the application number of 202021796776.6 named as 'a coal mine cooling device', the device comprises a crushing device and a dry ice volatilization collection assembly. The crushing device can stir and crush the dry ice in the dry ice crushing container, and then spray the crushed dry ice in the spray pipe through the spray head to cool down the coal mine underground electromechanical equipment. This heat sink simple structure, but the carbon dioxide quantity is big, leads to the storage container bulky, has moreover to reveal the risk, and the carbon dioxide belongs to greenhouse gas.
Also, for example, in the chinese patent application No. 202010865315.8 entitled "a tunnel ventilation refrigeration air conditioning device", the device includes a heat exchange module, an inlet water collecting and distributing chamber, an outlet water collecting and distributing chamber, and a support frame. The device is clean and environment-friendly through circulating cold water cooling, but has the defects of complex device structure, poor reliability and stability if accidents occur, and difficulty in playing a role without the support of external conditions.
In view of the above situation of the emergency temperature control device in the underground space, it is necessary to develop an emergency passive phase-change temperature control system which has no external power supply, high reliability and stability, and is environmentally friendly.
Disclosure of Invention
Aiming at the problems of complex structure and poor reliability and stability of an underground space emergency aeration cooling device in the prior art, the invention provides a mechanical energy storage type emergency passive phase-change temperature control system, which aims to solve the problems that: the cooling effect on the environment under the passive condition of emergency risk avoidance is realized, and the reliability and the stability of the emergency aeration cooling device are improved.
The technical scheme adopted by the invention is as follows:
the utility model provides an emergent passive phase transition temperature control system of mechanical energy storage formula, includes mechanical energy storage device, adjustable ventilation unit and temperature control system, adjustable ventilation unit is used for carrying out aeration cooling to the underground space, and when adjustable ventilation unit power supply was normal, mechanical energy storage device energy storage, when adjustable ventilation unit outage, the work of the adjustable ventilation unit of mechanical energy storage device release energy drive, temperature control system is used for monitoring ambient temperature and controls mechanical energy storage device, the work of adjustable ventilation unit according to ambient temperature.
Preferably, adjustable ventilation unit includes ventilation motor, transmission train, axial fan and air pipe, ventilation motor is connected with axial fan through rotating the train, axial fan is located air pipe's air intake, be provided with multiunit phase transition unit in the air pipe.
Preferably, the phase change units are uniformly distributed in the ventilation pipeline in a crossed manner, each phase change unit consists of a cylindrical stainless steel container and a built-in phase change material, the phase change temperature of the phase change material is within minus DEG C, and the phase change material is one of phase change paraffin, polyethylene glycol, capric acid and calcium chloride dodecahydrate.
Preferably, the drive train is including first gear, second gear and the third gear of meshing in proper order, the output shaft cover of ventilation motor is equipped with the one-way bearing of second, the outer lane and the third gear fixed connection of the one-way bearing of second, second gear fixedly connected with third pivot, the third pivot is connected with axial fan, the middle part of first gear is provided with first one-way gear, first one-way gear's inner circle fixedly connected with second pivot, the second pivot is connected with the increaser.
Preferably, a stepless speed regulating box is arranged between the axial flow fan and the third rotating shaft, the third rotating shaft is fixedly connected with the stepless speed regulating box, and the axial flow fan is fixedly connected with an output shaft of the stepless speed regulating box.
Preferably, the mechanical energy storage device comprises a low-speed-reduction motor and a plurality of volute spring energy storage units, and the volute spring energy storage units are used for storing energy output by the low-speed-reduction motor.
Preferably, an output shaft of the low deceleration motor is connected with a first bevel gear, the volute spring energy storage unit comprises a volute spring energy storage box, the volute spring energy storage box comprises a shell, a central shaft and a plurality of volute spring groups, an outer ring of each volute spring group is fixedly connected with the shell, an inner ring of each volute spring group is fixedly connected with the central shaft, the central shaft is connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.
Preferably, volute spring energy storage unit still includes first electromagnetic clutch, second electromagnetic clutch, dynamic torque sensor, loses electric brake and brake support, the output shaft and the first electromagnetic clutch one end fixed connection of low deceleration motor, the first pivot of the other end fixedly connected with of first electromagnetic clutch, first pivot and first bevel gear fixed connection, the first gear shaft of second bevel gear fixedly connected with, the one end fixed connection of first gear shaft and second electromagnetic clutch, the electromagnetic clutch other end is fixed with center pin one end, the other end of center pin and dynamic torque sensor's one end fixed connection, dynamic torque sensor's the other end and the one end fixed connection that loses electric brake shaft hole fixed connection, it is fixed in on the brake support to lose electric brake.
Preferably, the first rotating shaft is rotatably connected with a bearing frame, the first rotating shaft is fixedly connected with a ratchet wheel, a fixed shaft and a limiting stop lever are arranged on the bearing frame, a pawl is rotatably connected to the fixed shaft, and the pawl is matched with the ratchet wheel.
Preferably, the temperature control system comprises a system control unit, the system control unit is connected with a dynamic torque sensor and a temperature sensor, the temperature sensor is used for monitoring the ambient temperature and sending a signal to the system control unit, the dynamic torque sensor is used for monitoring the torque generated by the vortex spring energy storage unit and sending torque information to the system control unit, and the system control unit calculates the residual energy of the vortex spring energy storage unit according to the torque information; when the system supplies power normally, the system control unit controls the motor to drive the fan to operate and ventilate, controls the rotating speed of the fan according to the temperature signal, and judges whether the low-speed reduction motor needs to be controlled to store energy for the volute spring energy storage unit or not according to the torque information; when the system is abnormally powered, the system control unit controls the plurality of scroll spring energy storage units to sequentially release energy to drive the fan to ventilate, and simultaneously controls the rotating speed of the fan according to the temperature signal.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention integrates mechanical energy storage and phase change heat, and strengthens the temperature control characteristic of the phase change technology by utilizing the storage of mechanical energy, thereby playing a role in controlling the temperature of the environment under the passive condition of emergency risk avoidance.
2. The modularized vortex spring energy storage unit is adopted, the expansibility of the system is good, the stability of the system can be improved, and the long-time temperature control effect can be realized.
3. The fan provided by the invention is provided with two energy supply systems, can work under normal conditions and emergency passive conditions, and does not need additional space to separately store emergency equipment.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the structural arrangement of the system of the present invention;
FIG. 2 is a schematic view of a scroll energy storage unit of the present invention;
FIG. 3 is a schematic view of the internal structure of the volute spring case of the present invention;
FIG. 4 is a schematic view of the ratchet-pawl installation of the present invention;
FIG. 5 is a schematic view of an adjustable fan assembly of the present invention;
FIG. 6 is a schematic diagram of a system control unit of the present invention;
fig. 7 is a schematic flow chart of the system of the present invention.
Wherein, 1-a bottom plate, 2-a low speed reducing motor, 3-a first clutch bracket, 4-a second bevel gear, 5-a second clutch bracket, 6-a second electromagnetic clutch, 7-a volute spring energy storage box, 8-a dynamic torque sensor, 9-a power-off brake, 10-a brake bracket, 11-a first bearing, 12-a ratchet wheel, 13-a speed increasing machine, 14-a first gear, 15-a second rotating shaft, 16-a second bearing, 17-a third rotating shaft, 18-a fourth bearing, 19-an axial fan, 20-a ventilation pipeline, 21-a phase change unit, 22-a stepless speed regulating box, 23-a second gear, 24-a fifth bearing, 25-a fourth rotating shaft, 26-a second side plate and 27-a third gear, 28-third bearing, 29-first side plate, 30-ventilation motor, 31-pawl, 32-bearing frame, 33-first rotating shaft, 34-first bevel gear, 35-first electromagnetic clutch, 36-supporting frame, 37-central shaft, 38-first gear shaft, 39-volute spring group, 40-shell, 41-fixed shaft, 42-limit gear rod, 43-first one-way gear, 44-input shaft, 45-output shaft, 46-second one-way bearing, 47-temperature sensor, 48-system control unit, 49-independent power supply and 50-external power grid.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention is described in detail below with reference to fig. 1 to 7.
A mechanical energy storage type emergency passive phase change temperature control system comprises a mechanical energy storage device, an adjustable ventilation device and a temperature control system.
As shown in fig. 1 and 2, the mechanical energy storage device is provided with a low deceleration motor 2, a volute spring energy storage unit, an electromagnetic clutch, a bevel gear, and a ratchet pawl, the low deceleration motor 2 is fixed on a bottom plate 1 through bolts, an output shaft of the first electromagnetic clutch is fixedly connected with one hole of a first electromagnetic clutch 35, the first electromagnetic clutch 35 is fixed on the clutch support 3 through a bolt, the other hole of the first electromagnetic clutch 35 is fixedly connected with one end of a first rotating shaft 33, the first rotating shaft 33 is fixedly connected with a first bevel gear 34 through a key, the first bevel gear 34 is vertically meshed with a second bevel gear 4, the second bevel gear 4 is in interference fit with one end of a first gear shaft 38, the other end of the first gear shaft 38 is fixedly connected with one hole of a second electromagnetic clutch 6, the second electromagnetic clutch 6 is fixed on a second clutch support 5 through a bolt, and the other hole of the second electromagnetic clutch 6 is fixedly connected with one end of a central shaft 37 of a volute spring energy storage box 7. The other end of a central shaft 37 of the volute spring energy storage box 7 is fixedly connected with one end of the dynamic torque sensor 8 through a coupler, the other end of the dynamic torque sensor 8 is fixedly connected with a shaft hole of the power-off brake 9, and the power-off brake 9 is fixed on the brake support 10 through a bolt.
The first clutch support 3, the second clutch support 5 and the brake support 10 are all fixed on the bottom plate 1 through bolts.
The second bevel gear 4, the first gear shaft 38, the second electromagnetic clutch 6, the second clutch support 5, the volute spring energy storage box 7, the dynamic torque sensor 8, the power-off brake 9 and the brake support 10 form volute spring energy storage units, the volute spring energy storage units are arranged in groups, are uniformly distributed on two sides of the first rotating shaft 33 in a symmetrical array mode, and are meshed with the corresponding first bevel gears 34 fixedly connected to the first rotating shaft 33 through the second bevel gear 4.
A volute spring group 39 is arranged in the volute spring energy storage box 7, the outer ring of the volute spring group 39 is fixedly connected with a volute spring box shell 40, the inner ring is fixedly connected with a central shaft 37 of the volute spring energy storage box 7, a supporting frame 36 is arranged on the volute spring box shell 40, and the bottom of the supporting frame 36 is fixed on the bottom plate 1 through bolts.
The first rotating shaft 33 is in interference fit with an inner ring of the first bearing 11, an outer ring of the first bearing 11 is in interference fit with a shaft hole in the middle of the first bearing frame 32, the first bearing frame 32 is fixed on the bottom plate 1 through a bolt, and the upper end of the first bearing frame 32 is provided with a fixed shaft 41 and a limiting stop lever 42. The fixed shaft 41 is in clearance fit with the hole of the pawl 31, and the ratchet wheel 12 matched with the pawl 31 is fixedly connected with the first rotating shaft 33. The other end of the first rotating shaft 33 is fixedly connected with one end of the shaft of the speed increaser 13 through a coupler.
The adjustable ventilation device comprises a speed increaser 13, a ventilation motor 30, a transmission gear train, a stepless speed regulating box 22, an axial flow fan 19 and a ventilation pipeline 20 provided with a phase change unit 21. The speed increaser 13 is fixed in the outer right side of first curb plate 29, and the speed increaser 13 axle other end passes through the outer right side through-hole of first curb plate 29 and passes through shaft coupling and 15 one end fixed connection of first pivot, and the first 15 other ends of rotating a shaft pass through second bearing 16 and be connected with the 26 right side through-hole of second curb plate, and first 15 middle parts of rotating a shaft pass through key fixed connection with first one-way bearing 43 inner circle, and first one-way bearing 43 outer lane passes through key fixed connection with first gear 14, and first gear 14 meshes with second gear 23, and second gear 23 passes through key fixed connection in second pivot 17 middle part, ventilation motor 30 is fixed in the outer left side of first curb plate, and ventilation motor 30 axle passes through first curb plate 29 left side through-hole and passes through shaft coupling and 25 one end fixed connection of fourth pivot, and the other end of fourth pivot 25 passes through fifth bearing 24 and is connected with 26 left side through-hole of second curb plate. The middle part of the fourth rotating shaft 25 is fixedly connected with the inner ring of the second one-way bearing 46 through a key, the outer ring of the second one-way bearing 46 is fixedly connected with the third gear 27 through a key, and the third gear 27 is meshed with the second gear 23.
The first side plate 29 and the second side plate 26 are both fixed on the bottom plate 1 through bolts.
One end of the second rotating shaft 17 is connected with a through hole in the middle of the first side plate 29 through a third bearing 28, and the inner side of the output end of the second rotating shaft 17 is connected with a through hole in the middle of the second side plate 26 through a fourth bearing 18. The output end of the second rotating shaft 17 is fixedly connected with the input shaft 44 of the stepless speed regulating box 22 through a coupler, the output shaft 45 of the stepless speed regulating box 22 is fixedly connected with the axial flow fan 19, the axial flow fan 19 is positioned at the inlet of the ventilation pipeline 20, and a plurality of groups of phase change units 21 are arranged inside the ventilation pipeline 20.
The phase change units 21 are uniformly distributed in the front of the axial flow fan 20 in a crossed manner, and each phase change unit is composed of a cylindrical stainless steel container and a built-in phase change material. In this embodiment, the phase transition temperature of the phase transition material is 25-35 ℃, and may be one or more of phase transition paraffin, polyethylene glycol, capric acid, and calcium chloride dodecahydrate.
The temperature control system comprises a system control unit 48, the system control unit 48 is connected with the dynamic torque sensor 8 and the temperature sensor 47, and the system control unit 48 automatically controls the operation of the low speed reduction motor 2, the first electromagnetic clutch 35, the second electromagnetic clutch 6, the power-off brake 9, the ventilation motor 30 and the stepless speed regulation box 22.
An independent power supply 49 is arranged in the system control unit 48 for supplying power.
The low reduction motor 2, the ventilation motor 30 and the independent power supply 49 are connected with an external power grid 50.
The working process and the working principle of the invention are as follows:
when the external power supply is normal, the system control unit 48 monitors the ambient temperature through the temperature sensor 47, the system control unit 48 controls the ventilation motor 30 to work, the fourth rotating shaft 25 is driven to rotate clockwise, the inner ring and the outer ring of the second one-way bearing 46 are locked, the third gear 27 is driven to rotate clockwise, and the second gear 23 meshed with the third gear 27 drives the second rotating shaft 17 to rotate anticlockwise. At this time, the first gear 14 meshing with the second gear 23 rotates clockwise, the inner and outer rings of the first one-way bearing 43 freely rotate, and torque is not transmitted to the first shaft 15. The second rotating shaft 17 transmits power to the axial flow fan 19 through the stepless speed regulating box 22, the axial flow fan 19 works, the environment temperature is kept lower than the melting point of the phase change material 21, the phase change material 21 keeps a solid state, and the system cooling effect is not changed.
Meanwhile, the system control unit 48 monitors the state of each set of the volute spring energy storage box 7 at regular time through the dynamic torque sensor 8. In the energy storage state, the system control unit 48 controls the second electromagnetic clutch 6 to be disconnected, the electric brake 9 to brake and the first electromagnetic clutch 35 to be disconnected. In the energy storage state, the system control unit 48 controls the second electromagnetic clutch 6 to be closed, the power-off brake 9 is released, the volute spring energy storage box 7 is connected to the first rotating shaft 33, the first electromagnetic clutch 35 is controlled to be closed, the low-speed reduction motor 2 starts to work, the first rotating shaft 33 is driven to rotate anticlockwise, the first bevel gear 34 fixedly connected with the first rotating shaft 33 rotates anticlockwise, the second bevel gear 4 is driven to rotate clockwise, the gear shaft 38 drives the central shaft 37 of the volute spring energy storage box 7 to rotate clockwise through the second electromagnetic clutch 6, the volute spring 39 is tightened, and energy is stored. After the energy storage is completed, the system control unit 48 restores the energy storage state. In the energy storage state, the first rotating shaft 33 rotates counterclockwise, the first rotating shaft 15 is driven to rotate counterclockwise through the speed increaser 13, the inner ring and the outer ring of the first one-way bearing 43 rotate freely, torque is not transmitted to the first gear 14, and the ratchet wheel 12 fixedly connected with the first rotating shaft 33 prevents the first rotating shaft 33 from reversing to release energy of the volute spring box 7 under the limitation of the pawl 31.
When the power is cut off in an emergency, refugees enter the underground space to refuge, and at the moment, the ventilation motor 30 stops working, and the ambient temperature rises. The refuge person pulls the pawl 31 open, so that the first rotating shaft 33 is not limited by the ratchet wheel 12, and the system enters an energy release state. In the energy release state, the system control unit 48 controls the second electromagnetic clutch 6 of the mechanical energy storage unit to be closed, the power-off brake 9 to be released, and the volute spring energy storage box 7 is connected to the first rotating shaft 33. Under the drive of the volute spring 39, the central shaft 37 of the volute spring energy storage box 7 rotates anticlockwise, the second bevel gear 4 is driven to rotate anticlockwise through the second electromagnetic clutch 6 and the gear shaft 38, the first bevel gear 34 meshed with the second bevel gear 5 drives the first rotating shaft 33 to rotate clockwise, the first rotating shaft 15 is driven to rotate clockwise through the speed increaser 13, and the inner ring and the outer ring of the first one-way bearing 43 are locked to drive the first gear 14 to rotate clockwise. The second gear 23 engaged with the first gear 14 drives the second rotating shaft 17 to rotate counterclockwise. At this time, the third gear 27 engaged with the second gear 23 rotates clockwise, and the inner and outer rings of the second one-way bearing 46 rotate freely without transmitting torque to the fourth rotating shaft 25. The second rotating shaft 17 transmits power to the axial flow fan 19 through the stepless speed regulating box 22, and the axial flow fan 19 works. When the energy release of the first set of the vortex spring energy storage units is finished, the system control unit 48 controls the second electromagnetic clutch 6 of the set to be disconnected, so that the vortex spring energy storage box 7 is separated from the first rotating shaft 33, and the sets of the vortex spring energy storage units are sequentially controlled to enter an energy release state.
In order to prolong the system working time, the system control unit 48 adjusts the stepless speed regulating box 22 according to the ambient temperature, controls the rotating speed of the axial flow fan 19, and controls the temperature within 35 degrees. When the ambient temperature is gradually higher than the melting point of the phase-change material, the phase-change material gradually melts and absorbs heat, so that the cooling capacity of the system is enhanced.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. The utility model provides an emergent passive phase transition temperature control system of mechanical energy storage formula which characterized in that: including mechanical energy storage device, adjustable ventilation unit and temperature control system, adjustable ventilation unit is used for carrying out aeration cooling to the underground space, and when adjustable ventilation unit power supply was normal, mechanical energy storage device energy storage, when adjustable ventilation unit outage, the work of the adjustable ventilation unit of mechanical energy storage device release energy drive, temperature control system is used for monitoring ambient temperature and controls mechanical energy storage device, the work of adjustable ventilation unit according to ambient temperature.
2. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 1, characterized in that: adjustable ventilation unit includes ventilation motor (30), transmission gear train, axial fan (19) and air pipe (20), ventilation motor (30) are connected with axial fan (19) through rotating the gear train, axial fan (19) are located the air intake of air pipe (20), be provided with multiunit phase transition unit (21) in air pipe (20).
3. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 2, characterized in that: the phase change units (21) are uniformly distributed in the ventilation pipeline (20) in a crossed manner, each phase change unit (21) is composed of a cylindrical stainless steel container and a built-in phase change material, the phase change temperature of the phase change material is 25-35 ℃, and the phase change material is one of phase change paraffin, polyethylene glycol, capric acid and calcium chloride dodecahydrate.
4. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 2, characterized in that: the transmission train is including first gear (14), second gear (23) and third gear (27) that mesh in proper order, the output shaft cover of ventilation motor (30) is equipped with second one-way bearing (46), the outer lane and third gear (27) fixed connection of second one-way bearing (46), second gear (23) fixedly connected with third pivot (17), third pivot (17) are connected with axial fan (19), the middle part of first gear (14) is provided with first one-way gear (43), the inner circle fixedly connected with second pivot (15) of first one-way gear (43), second pivot (15) are connected with increaser (13).
5. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 4, wherein: a stepless speed regulating box (22) is arranged between the axial flow fan (19) and the third rotating shaft (17), the third rotating shaft (17) is fixedly connected with the stepless speed regulating box (22), and the axial flow fan (19) is fixedly connected with an output shaft of the stepless speed regulating box (22).
6. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 1, characterized in that: the mechanical energy storage device comprises a low-speed-reduction motor (2) and a plurality of volute spring energy storage units, and the volute spring energy storage units are used for storing energy output by the low-speed-reduction motor (2).
7. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 6, wherein: the output shaft of the low speed-reducing motor (2) is connected with a first bevel gear (34), the volute spring energy storage unit comprises a volute spring energy storage box (7), the volute spring energy storage box (7) comprises a shell (40), a central shaft (37) and a plurality of volute spring sets (39), the outer ring of each volute spring set (39) is fixedly connected with the shell (40), the inner ring is fixedly connected with the central shaft (37), the central shaft (37) is connected with a second bevel gear (4), and the second bevel gear (4) is meshed with the first bevel gear (34).
8. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 7, characterized in that: the volute spring energy storage unit further comprises a first electromagnetic clutch (35), a second electromagnetic clutch (6), a dynamic torque sensor (8), a power-off brake (9) and a brake support (10), an output shaft of the low speed reduction motor (2) is fixedly connected with one end of the first electromagnetic clutch (35), the other end of the first electromagnetic clutch (35) is fixedly connected with a first rotating shaft (33), the first rotating shaft (33) is fixedly connected with a first bevel gear (34), the second bevel gear (4) is fixedly connected with a first gear shaft (38), the first gear shaft (38) is fixedly connected with one end of the second electromagnetic clutch (6), the other end of the electromagnetic clutch (6) is fixed with one end of a central shaft (37), the other end of the central shaft (37) is fixedly connected with one end of the dynamic torque sensor (8), and the other end of the dynamic torque sensor (8) is fixedly connected with a shaft hole of the power-off electromagnetic brake (9), the power-off brake (9) is fixed on the brake bracket (10).
9. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 8, characterized in that: first pivot (33) rotate and are connected with bearing bracket (32), first pivot (33) fixedly connected with ratchet (12), be provided with dead axle (41) and spacing shelves pole (42) on bearing bracket (32), it is connected with pawl (31) to rotate on dead axle (41), pawl (31) and ratchet (12) cooperation.
10. The mechanical energy storage type emergency passive phase-change temperature control system according to claim 6, wherein: the temperature control system comprises a system control unit (48), the system control unit (48) is connected with a dynamic torque sensor (8) and a temperature sensor (47), the temperature sensor (47) is used for monitoring the ambient temperature and sending a signal to the system control unit (48), the dynamic torque sensor (8) is used for monitoring the torque generated by the vortex spring energy storage unit and sending torque information to the system control unit (48), and the system control unit (48) calculates the residual energy of the vortex spring energy storage unit according to the torque information; when the system supplies power normally, the system control unit (48) controls the motor to drive the fan to operate and ventilate, controls the rotating speed of the fan according to the temperature signal, and judges whether the low-speed reduction motor (2) needs to be controlled to store energy for the volute spring energy storage unit or not according to the torque information; when the system is abnormally powered, the system control unit (48) controls the plurality of vortex spring energy storage units to sequentially release energy to drive the fan to ventilate, and simultaneously controls the rotating speed of the fan according to the temperature signal.
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