CN216481768U - Anti-icing governing system - Google Patents
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- CN216481768U CN216481768U CN202122604602.6U CN202122604602U CN216481768U CN 216481768 U CN216481768 U CN 216481768U CN 202122604602 U CN202122604602 U CN 202122604602U CN 216481768 U CN216481768 U CN 216481768U
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Abstract
The utility model discloses an anti-icing regulating system, which comprises an external regulating system, a cold storage and an internal regulating system, wherein the external regulating system is arranged outside the cold storage, the internal regulating system is arranged inside the cold storage, the external regulating system comprises a controller, an air compressor, an air storage tank, a freezing type air dryer, a first control valve, a differential pressure sensor and the cold storage, the internal regulating system comprises an air storage device, a second control valve and a first gas pressure sensor, the technical scheme is that compressed air compressed by the air compressor is firstly stored by the air storage tank through the internal regulating system and the external regulating system, the air storage tank has a natural cooling process, and then the air storage tank is connected with the freezing type air dryer for drying and refrigeration, so that the energy consumption is greatly reduced, the economical efficiency is improved, and the stored gas in the air storage device in the internal regulating system is always balanced and consistent with the internal working temperature of the cold storage, the low-temperature dry air released by the air storage device can not or minimally affect the temperature of the refrigeration house.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to an anti-icing and frost-preventing adjusting system.
Background
In the field of medical appliance industry, relevant policy laws require that blood samples be processed as soon as possible after collection and stored at a specified temperature of 2-8 ℃. At present, a common method for blood samples after collection when relevant detection experiments cannot be immediately carried out is that the blood samples are placed in a refrigerator (or freezer) to be stored at the temperature of 2-8 ℃, when the samples need to be detected, the samples are manually taken out from the refrigerator (or freezer) to be tested, and if the blood samples need to be subjected to assembly line operation, automatic access cannot be achieved in the common refrigerator (or freezer), so that the requirements obviously cannot be met.
With the development of science and technology, the automatic freezer is gradually pushed to the market, and to the automatic freezer, face two important problems, respectively: firstly, the temperature fluctuation in the refrigeration house causes the solid freezing and melting process of the stored articles, especially the great fluctuation of the temperature in the refrigeration house caused by opening and closing the refrigeration house door in the article storing and taking process, and the quality of the stored articles in the refrigeration house is easy to be obviously influenced; secondly, in the inside low temperature environment of freezer and outside relative high temperature environment combination region, cold and heat exchange easily takes place, arouses frosting or fog agglutination to influence automatic device's continuous effective operation, like the automation equipment of the insulated door department of automation freezer, frosting or fogging take place most easily, make corresponding automation equipment inefficacy. In the prior art, as in patents CN206019134U and CN106152679A, the temperature fluctuation range of the automatic refrigeration house is controlled by designing the buffer chamber, and the air curtain is adopted at the door of the refrigeration house to block the outside air from entering the refrigeration house, but the design of the air curtain can bring in water vapor when part of the air enters the refrigeration house, and the water vapor freezes when meeting cold, therefore, at present, the door of the refrigeration house is closed during the process of storing and taking articles, and there is still a great technical improvement space for the problem of frosting or fog water condensation at the door of the automatic refrigeration house.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti-icing adjusting system for overcoming the defects in the prior art.
The utility model is realized by the following technical scheme:
the utility model provides an anti-icing governing system, includes outer governing system, freezer and interior governing system, outer governing system sets up in the freezer outside, interior governing system sets up inside the freezer, wherein:
the external adjusting system comprises a controller, an air compressor, an air storage tank, a freezing type air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected with the air compressor, the air compressor is connected with the air storage tank, the air storage tank is connected with the freezing type air dryer, the refrigeration house is connected with the differential pressure sensor, the differential pressure sensor is connected with the controller, the controller is connected with the first control valve, and the first control valve is connected with the freezing type air dryer;
the internal adjusting system comprises a gas storage device, a second control valve and a first pressure sensor, the first control valve is connected with the gas storage device, the gas storage device is connected with the second control valve, the second control valve is connected with the controller, the gas storage device is connected with the first pressure sensor, and the first pressure sensor is connected with the controller;
the air storage tank is used for storing compressed air compressed by the air compressor;
the refrigeration type air dryer is used for cooling and drying the compressed air in the air storage tank, so that the compressed air entering the refrigeration house is ensured to be dried, and water vapor is prevented from being brought into the refrigeration house;
the compressed air after the air compressor is compressed is stored through the air storage tank, the air storage tank has a natural cooling process, and then the air storage tank is connected with the freezing type air dryer to be connected for drying and refrigeration, so that the energy consumption is greatly reduced, and the economical efficiency is improved.
The differential pressure sensor is used for detecting the internal pressure of the refrigeration house and the external pressure of the refrigeration house;
the air storage device is used for storing the low-temperature dried compressed air after the cooling and drying treatment of the freezing type air dryer; the gas storage device in the technical scheme is arranged in the refrigeration house, the gas in the gas storage device and the working temperature in the refrigeration house are balanced and tend to be consistent all the time, so that the low-temperature dry air released by the gas storage device can not influence the temperature of the refrigeration house or the normal work of the refrigeration house to the minimum extent, and the low-temperature dry air in the gas storage device can be stably stored.
The controller is used for calculating to obtain pressure difference according to the current internal pressure and the external pressure of the refrigeration house; when the pressure difference reaches a first set value, the controller generates a first instruction and sends the first instruction to the second control valve to open the second control valve, and at the moment, the low-temperature dry air stored in the air storage device is supplemented into the refrigerator; when the pressure difference is not less than the first balance value, the controller generates a second command and sends the second command to the second control valve to close the second control valve;
the second control valve is used for receiving a first instruction and a second instruction sent by the controller; according to the first instruction and the second instruction, the second control valve is selectively opened, so that the low-temperature drying air in the air storage device can be transmitted to the interior of the refrigeration house, the pressure in the refrigeration house is greater than the pressure outside the refrigeration house or the pressure in the refrigeration house is balanced with the pressure outside the refrigeration house, and the condition of heat exchange between the interior and the exterior of the refrigeration house is damaged.
The first pressure sensor is used for monitoring the pressure of the gas storage device and feeding the pressure back to the controller, and the controller receives the current pressure value of the gas storage device;
when the current pressure value of the air storage device reaches a second set value, the controller generates a third instruction, sends the third instruction to the first control valve, opens the first control valve, and supplements low-temperature dry air passing through the refrigeration type air dryer into the air storage device; and when the current pressure value of the gas storage device reaches a third set value, the controller generates a fourth instruction, sends the fourth instruction to the first control valve and closes the first control valve.
The first control valve is used for receiving a third instruction and a fourth instruction sent by the controller; according to the third instruction and the fourth instruction, the first control valve is selectively opened, so that the low-temperature dry air passing through the freezing type air dryer is supplemented into the air storage device, the low-temperature dry air in the air storage device is ensured to be kept in a sufficient state all the time, and the low-temperature dry air in the air storage device can fully supply cold air conveying requirements when cold air needs to be conveyed into the refrigerator.
According to the technical scheme, the pressure in the air storage device is monitored in real time through the first pressure sensor, so that the compressed air in the air storage device is ensured to be kept in a sufficient state all the time, and the compressed air in the air storage device can fully supply the cold air conveying requirement when the cold air is required to be conveyed into the refrigeration house.
Further, the gas storage device is a gas storage pipeline, and the arrangement mode of the gas storage pipeline in the refrigerator can be a straight pipe type, a coil pipe type, a ring pipe type, a composite type, a spiral type and the like.
Furthermore, the gas storage pipeline is provided with at least one gas outlet and second control valves the number of which is matched with that of the gas outlets; the controller controls the second control valve to be opened and closed, and further controls the air outlet of the air storage pipeline to be opened and closed.
It should be noted that the straight pipe type in the arrangement manner of the gas storage pipes in the above technical solutions means that the gas storage pipes are arranged in the refrigeration house in a straight line type pipe structure, and the pipe structure is simple to install; the coil type is that the gas storage pipeline is arranged in the refrigeration house in a way of a pipeline structure of a disk shape, a snake shape, a Z-shaped shape and the like, the pipeline structure can uniformly cover the space of the refrigeration house, the volume of the gas stored in the pipeline is increased, and meanwhile, the space occupied by the pipeline can be saved, in addition, gas outlets are arranged at corresponding positions of the periphery, the center and the like of the disk-shaped pipeline according to the requirement, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the interior of the refrigeration house through the gas outlets at the periphery and the center simultaneously, the gas in the refrigeration house can rapidly reach a set state, and the set state refers to a state that the pressure in the refrigeration house is greater than the external pressure of the refrigeration house or the internal pressure and the external pressure of the refrigeration house are kept balanced; the annular pipe type is characterized in that the gas storage pipeline is arranged in the refrigeration house in an annular or ring-like pipeline structure mode, gas outlets are formed in corresponding positions around the annular pipeline according to needs, so that low-temperature dry air in the gas storage pipeline can release low-temperature dry gas to the interior of the refrigeration house through the gas outlets around the annular pipeline, the gas in the refrigeration house can rapidly reach a set state, the time for the gas to diffuse and uniformly mix in the refrigeration house is shortened, and the pipeline structure is simple to install compared with a coil pipe type structure and can achieve high-efficiency gas release, diffusion and uniform mixing; the composite type is that the pipeline structure of the gas storage pipeline simultaneously presents the characteristics of ring shape and disc shape; the spiral type is that the pipeline structure of the gas storage pipeline is arranged to be spiral, so that the volume of gas stored in the pipeline and the position range of the gas outlet of the pipeline can be further enlarged.
Further, the internal adjusting system also comprises a heating device, the gas storage device is connected with the heating device, and the heating device is connected with the controller;
the controller is used for storing the starting time and the set time;
setting the starting time to T0Setting the set time to be T and setting the current time to be T1When said T is1＝T0+ NT, where N is a natural number greater than 0, and the controller controls the heating device to operate;
among this technical scheme, through heating device work, heat gas storage device, heat the frosting that probably produces on the gas storage device, prevent that gas storage device from frosting, mainly be in order to solve following probably condition that leads to frosting: the controller calculates a pressure difference according to the current internal pressure and the external pressure of the refrigerator, when the pressure difference reaches a first set value, the controller generates a first instruction, sends the first instruction to the second control valve, opens the second control valve, supplements low-temperature dry air stored in the air storage device to the inside of the refrigerator, releases the compressed air for supplementing low-temperature dry air to the inside of the refrigerator to enable the pressure reaching the inside of the refrigerator to be larger than the external pressure of the refrigerator or the internal and external pressures of the refrigerator are kept balanced, a certain time is needed, and before the state is not reached, the pressure inside the refrigerator is still smaller than the external pressure of the refrigerator, so that before the state is not reached, the problem that the hot air outside the refrigerator enters the inside of the refrigerator to cause the freezing or frosting of the inside of the refrigerator still exists, therefore, in the technical scheme, the heating device is controlled to heat the gas storage device intermittently by the controller (the intermittent state means that the heating device heats the gas storage device when T is reached1＝T0+ NT, the controller controls the heating device to operate), further preventing the problem of frosting of the gas storage device.
Furthermore, the gas storage device is also connected with a water drainage device which is used for draining water generated when the gas storage pipeline is heated out of the refrigeration house. According to the technical scheme, the heating device works to intermittently heat the gas storage device, frost or ice accumulated on the gas storage pipeline is heated, and moisture generated after heating is discharged out of the refrigeration house through the drainage device, so that the normal work of the gas storage device is ensured.
Further, the drainage device is connected with a heating device. In the technical scheme, the heating device works, the gas storage device and the drainage device are heated simultaneously, and frosting possibly generated on the gas storage device and the drainage device is heated, so that the frosting of the gas storage device and the drainage device is prevented.
Furthermore, at least one oil mist separator is connected between the air compressor and the air storage tank and used for removing and purifying oil mist of compressed air compressed by the air compressor and then enabling the oil mist to enter the air storage tank for storage, and the collected oil mist is discharged to be relatively clean compressed air to purify the compressed air.
Furthermore, at least one filtering device is connected between the first control valve and the freezing type air dryer, compressed air in the air storage tank is filtered through the filtering device to remove impurities in the compressed air and ensure that the compressed air entering the cold storage is clean, and the filtering devices can be multiple groups and respectively filter particles with different sizes to obtain required clean air.
Further, the external regulating system further comprises a second pressure sensor, the controller is connected with the second pressure sensor, and the second pressure sensor is connected with the air storage tank;
the second pressure sensor is used for monitoring the pressure of the air storage tank and feeding the pressure back to the controller, and the controller receives the current pressure value of the air storage tank;
when the current pressure value of the air storage tank reaches a fourth set value, the controller generates a seventh instruction and sends the seventh instruction to the air compressor, the air compressor is opened, and compressed air is supplemented to the air storage tank, namely the air compressor conveys compressed air to the air storage tank so as to supplement the compressed air in the air storage tank;
and when the current pressure value of the air storage tank reaches a fifth set value, the controller generates an eighth instruction and sends the eighth instruction to the air compressor to close the air compressor. Above-mentioned technical scheme through the pressure in the second pressure sensor real-time supervision gas holder to ensure that the compressed air in the gas holder keeps sufficient state constantly, when guaranteeing to carry cold air to the freezer is inside, the compressed air in the gas holder can fully supply the cold air and carry the demand.
Furthermore, the refrigeration house comprises a refrigeration house body, wherein a cabin door and an access door are arranged on the refrigeration house body, the cabin door is used for the entry and exit of refrigerated articles, the access door is used for entering the interior of the refrigeration house by opening the access door when the refrigerated articles need to enter the refrigeration house manually for maintenance, a first sensing device is connected to the cabin door, a second sensing device is connected to the access door, and the first sensing device and the second sensing device are connected with a controller;
the first sensing device is used for sensing the opening and closing of the cabin door and feeding back signals of the opening and closing of the cabin door to the controller;
the second sensing device is used for sensing the opening and closing of the access door and feeding back signals of the opening and closing of the access door to the controller;
the controller is used for receiving signals fed back by the first sensing device and the second sensing device, and selectively controls the second control valve to be opened and closed according to the received signals.
When the controller receives a hatch door or access door opening signal fed back by the first sensing device or the second sensing device, the controller generates a ninth instruction, sends the ninth instruction to the second control valve, opens the second control valve, and supplements low-temperature dry air stored in the air storage device to the interior of the refrigeration house; when the controller receives a door or access door closing signal fed back by the first sensing device or the second sensing device and calculates that the pressure difference is not less than a first balance value according to the current internal pressure and the external pressure of the refrigeration house, the controller generates a tenth instruction, sends the tenth instruction to the second control valve and closes the second control valve; the opening and closing states of the cabin door and the access door are sensed through the first sensing device and the second sensing device respectively, when the first sensing device and the second sensing device sense that the cabin door or the access door is in the opening state, a signal of the opening state of the cabin door or the access door is fed back to the controller, the controller controls the second control valve to be opened, and low-temperature dry air stored in the air storage device is supplemented into the refrigeration house, so that the pressure inside the refrigeration house is greater than the external pressure of the refrigeration house or the internal pressure and the external pressure of the refrigeration house are kept balanced.
In combination with the structural characteristics of the utility model, compared with the prior art, the anti-icing adjusting system provided by the utility model comprises an external adjusting system, a refrigeration house and an internal adjusting system, the outer adjusting system is arranged outside the refrigeration house, the inner adjusting system is arranged inside the refrigeration house, the outer adjusting system comprises a controller, an air compressor, an air storage tank, a freezing type air dryer, a first control valve, a differential pressure sensor and the refrigeration house, wherein the controller is connected with the air compressor, the air compressor is connected with the air storage tank, the air storage tank is connected with the freezing type air dryer, the refrigeration house is connected with the differential pressure sensor, the differential pressure sensor is connected with the controller, the controller is connected with the first control valve, the first control valve is connected with the freezing type air dryer and the refrigeration house; the internal adjusting system comprises a gas storage device, a second control valve and a first pressure sensor, the first control valve is connected with the gas storage device, the gas storage device is connected with the second control valve, the second control valve is connected with the controller, the gas storage device is connected with the first pressure sensor, and the first pressure sensor is connected with the controller; according to the technical scheme, compressed air compressed by the air compressor is stored through the air storage tank by the inner and outer adjusting systems, the air storage tank has a natural cooling process, then the air storage tank is connected with the freezing type air dryer to be connected for drying and refrigerating, the energy consumption is greatly reduced, the economy is improved, the stored gas in the air storage device in the inner adjusting system and the internal working temperature of the refrigeration house are balanced and tend to be consistent all the time, so that the low-temperature dry air released by the air storage device cannot influence the temperature of the refrigeration house or the temperature of the refrigeration house to the minimum degree, the normal work of the refrigeration house cannot be influenced, and the low-temperature dry air in the air storage device can be stably stored.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic view of an anti-icing conditioning system according to an embodiment of the present invention.
Fig. 2 and fig. 3 are schematic diagrams of the arrangement of the coil type gas storage pipeline according to the second embodiment of the present invention.
Fig. 4 is a schematic diagram of an arrangement of a loop pipe type gas storage pipeline according to a second embodiment of the present invention.
Fig. 5 is a schematic diagram of an arrangement manner of a composite gas storage pipeline according to a second embodiment of the present invention.
Fig. 6 is a schematic view of an anti-icing adjusting system according to a third embodiment of the present invention.
Fig. 7 is a schematic view of an anti-icing adjusting system according to a fourth embodiment of the present invention.
Fig. 8 is a schematic view of an anti-icing adjusting system according to a fifth embodiment of the present invention.
Fig. 9 is a schematic view of an anti-icing adjusting system according to a sixth embodiment of the present invention.
Fig. 10 is a schematic view of an anti-icing adjusting system according to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture changes, the directional indicator changes accordingly.
Example one
The utility model is realized by the following technical scheme:
as shown in fig. 1, an anti-icing governing system, includes outer governing system, freezer and interior governing system, outer governing system sets up in the freezer outside, interior governing system sets up inside the freezer, wherein:
the external adjusting system comprises a controller, an air compressor, an air storage tank, a freezing type air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected with the air compressor, the air compressor is connected with the air storage tank, the air storage tank is connected with the freezing type air dryer, the refrigeration house is connected with the differential pressure sensor, the differential pressure sensor is connected with the controller, the controller is connected with the first control valve, and the first control valve is connected with the freezing type air dryer;
the internal adjusting system comprises a gas storage device, a second control valve and a first pressure sensor, the first control valve is connected with the gas storage device, the gas storage device is connected with the second control valve, the second control valve is connected with the controller, the gas storage device is connected with the first pressure sensor, and the first pressure sensor is connected with the controller;
the air storage tank is used for storing compressed air compressed by the air compressor;
the refrigeration type air dryer is used for cooling and drying the compressed air in the air storage tank, so that the compressed air entering the refrigeration house is ensured to be dried, and water vapor is prevented from being brought into the refrigeration house;
the differential pressure sensor is used for detecting the internal pressure of the refrigeration house and the external pressure of the refrigeration house;
the air storage device is used for storing the low-temperature dried compressed air after the cooling and drying treatment of the freezing type air dryer; the gas storage device in the technical scheme is arranged in the refrigeration house, the gas in the gas storage device and the working temperature in the refrigeration house are balanced and tend to be consistent all the time, so that the low-temperature dry air released by the gas storage device can not influence the temperature of the refrigeration house or the normal work of the refrigeration house to the minimum extent, and the low-temperature dry air in the gas storage device can be stably stored.
The controller is used for calculating to obtain pressure difference according to the current internal pressure and the external pressure of the refrigeration house; when the pressure difference reaches a first set value, the controller generates a first instruction and sends the first instruction to the second control valve to open the second control valve, and at the moment, the low-temperature dry air stored in the air storage device is supplemented into the refrigerator; when the pressure difference is not less than the first balance value, the controller generates a second command and sends the second command to the second control valve to close the second control valve;
the controller is used for calculating to obtain pressure difference according to the current internal pressure and the external pressure of the refrigeration house, and setting the current internal pressure of the refrigeration house to be P1Setting the current external pressure of the cold storage to be P2Setting the pressure difference to Δ P, where Δ P ═ P (P)1-P2) (ii) a When the pressure difference Δ P reaches a first set value, it should be noted that the first set value is a preset value, and when the pressure difference between the inside and the outside of the freezer reaches the preset first set value, the controller generates a first instruction and sends the first instruction to the second control valve to open the second control valve, and at this time, the low-temperature dry air stored in the air storage device is supplemented to the inside of the freezer; when the pressure difference Δ P is not less than the first equilibrium value, the controller generates a second instruction, sends the second instruction to the second control valve, and closes the second control valve, it should be noted that the first equilibrium value is a preset value, the first equilibrium value may be 0 or greater than 0, when the first equilibrium value is 0, and when the pressure difference Δ P is not less than the first equilibrium value in this condition state, the pressure difference Δ P inside and outside the refrigerator is 0 to maintain equilibrium or the internal pressure of the refrigerator is greater than the external pressure, when the first equilibrium value is 0, the pressure difference Δ P inside and outside the refrigerator is 0 to maintain equilibrium or the internal pressure of the refrigerator is greater than the external pressure, and when the pressure difference Δ P is not less than the first equilibrium valueWhen the equilibrium value is greater than 0, and the pressure difference delta P is not less than the first equilibrium value at the time of the condition state, the pressure difference delta P between the inside and the outside of the refrigeration house is greater than 0, namely the pressure inside the refrigeration house is kept greater than the external pressure.
The second control valve is used for receiving a first instruction and a second instruction sent by the controller; according to the first instruction and the second instruction, the second control valve is selectively opened, so that the low-temperature drying air in the air storage device can be transmitted to the interior of the refrigeration house, the pressure in the refrigeration house is greater than the pressure outside the refrigeration house or the pressure in the refrigeration house is balanced with the pressure outside the refrigeration house, and the condition of heat exchange between the interior and the exterior of the refrigeration house is damaged. The second control valve is selectively opened, that is, when the second control valve receives a first command sent by the controller, the second control valve is opened, the low-temperature dry air stored in the air storage device is supplemented into the refrigerator, and when the second control valve receives a second command sent by the controller, the second control valve is closed.
The first pressure sensor is used for monitoring the pressure of the gas storage device and feeding the pressure back to the controller, and the controller receives the current pressure value of the gas storage device;
when the current pressure value of the air storage device reaches a second set value, the controller generates a third instruction, sends the third instruction to the first control valve, opens the first control valve, and supplements low-temperature dry air passing through the refrigeration type air dryer into the air storage device; and when the current pressure value of the gas storage device reaches a third set value, the controller generates a fourth instruction, sends the fourth instruction to the first control valve and closes the first control valve.
The first control valve is used for receiving a third instruction and a fourth instruction sent by the controller; according to the third instruction and the fourth instruction, the first control valve is selectively opened, so that the low-temperature dry air passing through the freezing type air dryer is supplemented into the air storage device, the low-temperature dry air in the air storage device is ensured to be kept in a sufficient state all the time, and the low-temperature dry air in the air storage device can fully supply cold air conveying requirements when cold air needs to be conveyed into the refrigerator.
It should be noted that the second set value is a preset value, and when the current pressure value of the air storage device reaches the second set value, which indicates that the low-temperature dry air in the air storage device is insufficient at this time, and needs to be supplemented, the controller generates a third instruction and sends the third instruction to the first control valve, so as to open the first control valve, and at this time, the low-temperature dry air passing through the refrigeration air dryer is supplemented into the air storage device, so as to supplement the low-temperature dry air to the air storage device.
And when the current pressure value of the air storage tank reaches a third set value, the controller generates a fourth instruction, sends the fourth instruction to the first control valve and closes the first control valve.
It should be noted that the third set value is a preset value, and when the current pressure value of the air storage device reaches the third set value, which indicates that the low-temperature dry air in the air storage device is in a sufficient state at this time, the controller generates a fourth instruction and sends the fourth instruction to the first control valve, closes the first control valve, and stops supplying the low-temperature dry air to the air storage device.
Above-mentioned technical scheme, through the pressure in the first pressure sensor real-time supervision gas holder, when monitoring the pressure in the gas holder insufficient, timely feedback control ware, send the instruction to air compressor by the controller, open air compressor, supply compressed air for the gas holder to ensure that the compressed air in the gas holder can keep sufficient state constantly, when guaranteeing to carry cold air to the freezer inside, the compressed air in the gas holder can fully supply the air conditioning transport demand.
The compressed air after the air compressor is compressed is stored through the air storage tank, the air storage tank has a natural cooling process, then the air storage tank is connected with the freezing type air dryer for drying and refrigerating, the air storage tank is naturally cooled firstly, and then the drying and refrigerating are carried out, so that the energy consumption is greatly reduced, and the economical efficiency is improved.
Example two
As shown in fig. 2 to 4, the gas storage device is a gas storage pipeline, and the arrangement of the gas storage pipeline in the freezer can be a straight pipe type, a coil type, a ring pipe type, a composite type, a spiral type, and the like.
The gas storage pipeline is provided with at least one gas outlet and second control valves the number of which is matched with that of the gas outlets; the controller controls the second control valve to be opened and closed, and further controls the air outlet of the air storage pipeline to be opened and closed.
It should be noted that the straight pipe type in the arrangement manner of the gas storage pipes in the above technical solution means that the gas storage pipes are arranged in the refrigerator in a straight line type pipe structure, the pipe structure is simple to install, and the structure is not shown in the figure; the coil type, as shown in fig. 2 and fig. 3, means that the gas storage pipeline is arranged in the refrigerator in a way of a coil-shaped, snake-shaped, Z-shaped-like pipeline structure, and the like, and the pipeline structure can uniformly cover the space of the refrigerator, so that the volume of the gas stored in the pipeline is increased, and the space occupied by the pipeline is saved, in addition, gas outlets are arranged at the periphery, the center and other corresponding positions of the coil-shaped pipeline according to the requirement, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the interior of the refrigerator through the gas outlets at the periphery and the center, and the gas in the refrigerator can rapidly reach a set state, wherein the set state means that the pressure in the refrigerator is greater than the external pressure of the refrigerator or the internal pressure and the external pressure of the refrigerator keep balanced state; the circular tube type, as shown in fig. 4, means that the gas storage pipeline is arranged in the refrigeration house in a circular or ring-like pipeline structure mode, gas outlets are arranged at corresponding positions around the circular pipeline according to needs, so that low-temperature dry air in the gas storage pipeline can release low-temperature dry gas to the interior of the refrigeration house through the gas outlets around, the gas in the refrigeration house can rapidly reach a set state, the time for the gas to diffuse and mix uniformly in the refrigeration house is shortened, and the pipeline structure is simple to install compared with a coil pipe type structure, and can achieve high efficiency gas release, diffusion and mixing uniformly; composite, as shown in fig. 5, means that the pipeline structure of the gas storage pipeline presents ring-shaped and disc-shaped characteristics at the same time; the spiral type is that the pipeline structure of the gas storage pipeline is arranged to be spiral, so that the volume of gas stored in the pipeline and the position range of the gas outlet of the pipeline can be further enlarged, and the structure is not shown in the figure. (it should be noted that fig. 2 to 4 are schematic layout views of the gas storage pipeline, not representing the actual installation manner, in which the rectangular outer frame in the drawings represents the refrigeration storage, and the serpentine, Z-like, rounded rectangular and compound lines inside the refrigeration storage are represented as the gas storage pipeline.)
EXAMPLE III
As shown in fig. 6, the internal adjusting system further comprises a heating device, the gas storage device is connected with a heating device, and the heating device is connected with the controller;
the controller is used for storing the starting time and the set time;
the starting time can be understood as the time when the refrigerator is started to work, and the starting time can be a numerical value or a clock type numerical value consistent with the received current time, for example, the numerical value can be an integer or non-integer numerical value such as 0, 1, 2, 0.1, 0.2, 1.1, 1.2, and the like, and the clock type numerical value can be a clock type numerical value such as 08:00, 08:30, 09:02, and the like;
setting the starting time to T0Setting time as T and current time as T1When said T is1＝T0+ NT, where N is a natural number greater than 0, and the controller controls the heating device to operate;
among this technical scheme, through heating device work, heat gas storage device, heat the frosting that probably produces on the gas storage device, prevent that gas storage device from frosting, mainly be in order to solve following probably condition that leads to frosting: the controller calculates to obtain pressure difference according to the current internal pressure and the external pressure of the refrigeration house, when the pressure difference reaches a first set value, the controller generates a first instruction, sends the first instruction to the second control valve, opens the second control valve, supplements low-temperature dry air stored in the air storage device to the interior of the refrigeration house, and releases compressed air for supplementing low-temperature dry air to the interior of the refrigeration house so that the pressure reaching the interior of the refrigeration house is greater than the external pressure of the refrigeration house or the internal pressure and the external pressure of the refrigeration house keep balanceThe state needs a certain time, and before the state is not reached, the pressure inside the refrigeration house is still smaller than the pressure outside the refrigeration house, so that before the state is not reached, the problem that the hot air outside the refrigeration house enters the refrigeration house to cause the freezing or frosting inside the refrigeration house still exists, therefore, in the technical scheme, the heating device is controlled to heat the gas storage device through the controller in an intermittent manner (the intermittent manner refers to that when the T is reached1＝T0+ NT, the controller controls the heating device to operate), further preventing the problem of frosting of the gas storage device.
Example four
As shown in fig. 7, the gas storage device is further connected with a water discharge device for discharging water generated by heating the gas storage pipeline out of the refrigeration house. According to the technical scheme, the heating device works to intermittently heat the gas storage device, frost or ice accumulated on the gas storage pipeline is heated, and moisture generated after heating is discharged out of the refrigeration house through the drainage device, so that the normal work of the gas storage device is ensured.
EXAMPLE five
As shown in fig. 8, the drainage device is connected to a heating device. In the technical scheme, the heating device works, the gas storage device and the drainage device are heated simultaneously, and frosting possibly generated on the gas storage device and the drainage device is heated, so that the frosting of the gas storage device and the drainage device is prevented.
EXAMPLE six
As shown in fig. 9, at least one oil mist separator is further connected between the air compressor and the air storage tank, and is configured to remove and purify oil mist of the compressed air compressed by the air compressor, and then the oil mist enters the air storage tank for storage, and the collected oil mist is discharged as relatively clean compressed air, so as to purify the compressed air.
Still be connected with at least one filter equipment between the first control valve with freezing formula air dryer, compressed air in the gas holder filters through filter equipment to get rid of the impurity among the compressed air, ensure that the compressed air who gets into in the cold storage is clean, filter equipment can be the multiunit, filters different size particles respectively, in order to obtain required clean gas. When the controller sends a first instruction to the first control valve, and the first control valve is opened, compressed air in the air storage tank is subjected to cooling and drying treatment by the freezing type air dryer, and then is conveyed into the refrigeration house after impurities are filtered by the filtering device.
EXAMPLE seven
As shown in fig. 10, the external regulating system further includes a second pressure sensor, the controller is connected to the second pressure sensor, and the second pressure sensor is connected to the air storage tank;
the second pressure sensor is used for monitoring the pressure of the air storage tank and feeding the pressure back to the controller, and the controller receives the current pressure value of the air storage tank;
when the current pressure value of the air storage tank reaches a fourth set value, the controller generates a seventh instruction and sends the seventh instruction to the air compressor, the air compressor is opened, and compressed air is supplemented to the air storage tank, namely the air compressor conveys compressed air to the air storage tank so as to supplement the compressed air in the air storage tank;
and when the current pressure value of the air storage tank reaches a fifth set value, the controller generates an eighth instruction and sends the eighth instruction to the air compressor to close the air compressor. Above-mentioned technical scheme through the pressure in the second pressure sensor real-time supervision gas holder to ensure that the compressed air in the gas holder keeps sufficient state constantly, when ensuring to the inside transport air conditioning of freezer, the compressed air in the gas holder can fully supply the air conditioning and carry the demand.
Example eight
This embodiment is not shown in the figures. The refrigeration house comprises a refrigeration house body, wherein a cabin door and an access door are arranged on the refrigeration house body, the cabin door is used for the entry and exit of refrigerated articles, the access door is used for entering the interior of the refrigeration house through opening the access door when the refrigerated articles need to be manually entered into the refrigeration house for maintenance, a first sensing device is connected to the cabin door, a second sensing device is connected to the access door, and the first sensing device and the second sensing device are connected with a controller;
the first sensing device is used for sensing the opening and closing of the cabin door and feeding back signals of the opening and closing of the cabin door to the controller;
the second sensing device is used for sensing the opening and closing of the access door and feeding back signals of the opening and closing of the access door to the controller;
the controller is used for receiving signals fed back by the first sensing device and the second sensing device, and selectively controls the second control valve to be opened and closed according to the received signals.
When the controller receives a hatch door or access door opening signal fed back by the first sensing device or the second sensing device, the controller generates a ninth instruction, sends the ninth instruction to the second control valve, opens the second control valve, and supplements low-temperature dry air stored in the air storage device to the interior of the refrigeration house; when the controller receives a door or access door closing signal fed back by the first sensing device or the second sensing device and calculates that the pressure difference is not less than a first balance value according to the current internal pressure and the external pressure of the refrigeration house, the controller generates a tenth instruction, sends the tenth instruction to the second control valve and closes the second control valve; the opening and closing states of the cabin door and the access door are sensed through the first sensing device and the second sensing device respectively, when the first sensing device and the second sensing device sense that the cabin door or the access door is in the opening state, a signal of the opening state of the cabin door or the access door is fed back to the controller, the controller controls the second control valve to be opened, and low-temperature dry air stored in the air storage device is supplemented into the refrigeration house, so that the pressure inside the refrigeration house is greater than the external pressure of the refrigeration house or the internal pressure and the external pressure of the refrigeration house are kept balanced.
Therefore, the technical proposal respectively senses the opening and closing states of the cabin door and the access door through the first sensing device and the second sensing device, when the first sensing device and the second sensing device sense that the cabin door or the access door is in the opening state, the signal of the opening state of the cabin door or the access door is fed back to the controller, the second control valve is controlled to be opened by the controller, the low-temperature dry air stored in the air storage device is supplemented into the cold storage, the low-temperature dry compressed air is automatically supplemented into the cold storage, the pressure in the cold storage is increased to be larger than the external pressure of the cold storage or the internal and external pressures of the cold storage are kept balanced, the cold and heat exchange of the inside and the outside of the cold storage caused by the opening of the cabin door or the access door is prevented, and the external hot air is prevented from entering the inside of the cold storage, thereby avoiding the phenomena of icing or frosting inside the cold storage, the cabin door, the access door and other connecting parts inside and outside the cold storage.
The applicant asserts that the above-described embodiments merely represent the basic principles, principal features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, and that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the utility model, which will fall within the scope of the utility model as claimed.
The present invention is not limited to the above embodiments, and all embodiments adopting the similar structure and method to achieve the object of the present invention are within the protection scope of the present invention.
Claims (10)
1. An anti-icing governing system characterized in that: including outer governing system, freezer and interior governing system, outer governing system sets up in the freezer outside, interior governing system sets up inside the freezer, wherein:
the external adjusting system comprises a controller, an air compressor, an air storage tank, a freezing type air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected with the air compressor, the air compressor is connected with the air storage tank, the air storage tank is connected with the freezing type air dryer, the refrigeration house is connected with the differential pressure sensor, the differential pressure sensor is connected with the controller, the controller is connected with the first control valve, and the first control valve is connected with the freezing type air dryer;
the internal adjusting system comprises a gas storage device, a second control valve and a first pressure sensor, the first control valve is connected with the gas storage device, the gas storage device is connected with the second control valve, the second control valve is connected with the controller, the gas storage device is connected with the first pressure sensor, and the first pressure sensor is connected with the controller;
the air storage tank is used for storing compressed air compressed by the air compressor;
the freezing type air dryer is used for cooling and drying the compressed air in the air storage tank;
the differential pressure sensor is used for detecting the internal pressure of the refrigeration house and the external pressure of the refrigeration house;
the air storage device is used for storing the low-temperature dried compressed air after the cooling and drying treatment of the freezing type air dryer;
the controller is used for calculating to obtain pressure difference according to the current internal pressure and the external pressure of the refrigeration house; when the pressure difference reaches a first set value, the controller generates a first command and sends the first command to the second control valve to open the second control valve; when the pressure difference is not less than the first balance value, the controller generates a second command and sends the second command to the second control valve to close the second control valve;
the second control valve is used for receiving a first instruction and a second instruction sent by the controller; the second control valve is selectively opened according to the first command and the second command;
the first pressure sensor is used for monitoring the pressure of the gas storage device and feeding the pressure back to the controller, and the controller receives the current pressure value of the gas storage device; when the current pressure value of the gas storage device reaches a second set value, the controller generates a third instruction, sends the third instruction to the first control valve and opens the first control valve; when the current pressure value of the gas storage device reaches a third set value, the controller generates a fourth instruction, sends the fourth instruction to the first control valve and closes the first control valve;
the first control valve is used for receiving a third instruction and a fourth instruction sent by the controller; the first control valve is selectively opened based on the third and fourth commands.
2. The anti-icing conditioning system of claim 1, wherein: the gas storage device is a gas storage pipeline, and the arrangement mode of the gas storage pipeline in the refrigerator can be any one of a straight pipe type, a coil pipe type, a ring pipe type, a composite type or a spiral type.
3. The anti-icing conditioning system of claim 2, wherein: the gas storage pipeline is provided with at least one gas outlet and second control valves matched with the gas outlets in number.
4. The anti-icing conditioning system of claim 1, wherein: the internal adjusting system also comprises a heating device, the gas storage device is connected with the heating device, and the heating device is connected with the controller;
the controller is used for storing the starting time and the set time;
setting the starting time to be T0Setting the set time to be T and setting the current time to be T1；
When said T is1＝T0And + NT, wherein N is a natural number greater than 0, and the controller controls the heating device to operate.
5. The anti-icing conditioning system of claim 4, wherein: and the gas storage device is also connected with a drainage device.
6. The anti-icing conditioning system of claim 5, wherein: the drainage device is connected with the heating device.
7. The anti-icing conditioning system of claim 4, wherein: at least one oil mist separator is connected between the air compressor and the air storage tank.
8. The anti-icing conditioning system of claim 7, wherein: at least one filter device is also connected between the first control valve and the refrigerated air dryer.
9. An anti-icing conditioning system according to any one of claims 4, 7 or 8, characterized in that: the external adjusting system also comprises a second pressure sensor, the controller is connected with the second pressure sensor, and the second pressure sensor is connected with the air storage tank;
the second pressure sensor is used for monitoring the pressure of the air storage tank and feeding the pressure back to the controller, and the controller receives the current pressure value of the air storage tank; when the current pressure value of the air storage tank reaches a fourth set value, the controller generates a seventh instruction, sends the seventh instruction to the air compressor and turns on the air compressor; and when the current pressure value of the air storage tank reaches a fifth set value, the controller generates an eighth instruction and sends the eighth instruction to the air compressor to close the air compressor.
10. The anti-icing conditioning system of claim 1, wherein: the refrigeration house comprises a house body, wherein a cabin door and an access door are arranged on the house body, a first sensing device is connected to the cabin door, a second sensing device is connected to the access door, and the first sensing device and the second sensing device are connected with a controller;
the first sensing device is used for sensing the opening and closing of the cabin door and feeding back signals of the opening and closing of the cabin door to the controller;
the second sensing device is used for sensing the opening and closing of the access door and feeding back signals of the opening and closing of the access door to the controller;
the controller is used for receiving signals fed back by the first sensing device and the second sensing device, and selectively controls the second control valve to be opened and closed according to the received signals.
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| CN113883803A (en) * | 2021-10-28 | 2022-01-04 | 深圳市爱康生物科技有限公司 | Anti-icing governing system |
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