2798 results about "Cool storage" patented technology

A refrigerator including a refrigerating compartment; a freezing compartment; an evaporator at a rear side of the freezing compartment; a communicating duct including a first flow path and a second flow path; a refrigerating compartment duct configured to receive cold air generated by the evaporator from the communicating duct and including a first internal flow path to guide cold air from the first flow path to a first refrigerating space of the refrigerating compartment, and a second internal flow path to guide cold air from the second flow path to a second refrigerating space of the refrigerating compartment; and a damper including a first damping cover configured to control a supply of cold air to the first internal flow path, and a second damping cover configured to control a supply of cold air to the second internal flow path.

Methods and systems for handling and dispensing fluid are disclosed herein. In some embodiments, a method includes dispensing fluid into an inner chamber and inserting the inner container into an outer chamber of an outer container. The method can include dispensing a coolant into the outer chamber of the outer container and coupling an outer container coupler of the outer container to a first coupler of a connector such that the connector defines a gap between the inner container and the outer container. The method can include coupling a second coupler of the connector to a lid coupler of a lid, wherein the lid coupler has the same thread pitch as the inward-facing threads of the outer container coupler of the outer container. The method can include cooling the fluid to a chilled storage temperature and dispensing the fluid out of the inner chamber.

A method of assembling a meal kit tray from a single blank including a bottom panel, wherein the bottom panel is configured to support a bag containing refrigerated items and a cold pack, wherein the single blank further comprises a bottom panel; a side panel extending outwardly from at least a portion of the bottom panel, the side panel joined to the bottom panel along a first fold line defining a joint, wherein the first fold line is interrupted by at least one perforation line segment defining a standoff; and a wing extending outwardly from the side panel, the wing joined to the side panel along a second fold line defining a joint, the wing defining a free end; wherein the method comprises the steps of rotating the side panel upwardly about the first fold line to cause the standoff to separate from the side panel; and rotating the wing downwardly about the second fold line.

The invention relates to a refrigeration air conditioner control method and system based on a dynamic adjusting algorithm, a low-pressure area and a high-pressure area in a cold-chain logistics transportation cabinet are judged through real-time reference air pressure data of a barometer, and the real-time reference air pressure data of the barometer can be received and analyzed. A sliding window is established, based on the sliding window, a parameter diagram of real-time reference air pressure data is segmented, real-time pressure data in the sliding window is obtained, when the conveying amount of cold air is too large, a low-pressure area can be formed in the cold-chain logistics transportation cabinet, and then more wet hot air is absorbed, so that the interior of the cold-chain logistics transportation cabinet is frosted and frozen; and more effective energy can be consumed. When the conveying amount of the cold air is too small, a high-pressure area can be formed in the cold-chain logistics transportation cabinet, and the preset temperature cannot be reached. Through the air pressure data, the temperature in the cold-chain logistics transportation cabinet can be accurately obtained.

The invention discloses a foaming process parameter optimization system and method, a storage medium and equipment, and relates to the technical field of refrigeration and freezing, the system comprises a data acquisition module used for acquiring foaming process parameters corresponding to each procedure in a foaming process, and the foaming process parameters comprise bubble structure data of a refrigerator body; the foaming defect diagnosis module is used for determining main influence parameters causing bubble defects based on the foaming process parameters and providing early warning information; the foaming quality prediction module is used for predicting the foaming quality of the refrigerator body based on the foaming process parameters; and the foaming process optimization module is used for generating a process parameter adjustment strategy based on the foaming process parameters, the main influence parameters and the foaming quality so as to improve the foaming quality. By adopting the system provided by the invention, the corresponding process parameter adjustment strategy can be carried out according to the predicted foaming quality and foaming defect diagnosis in the foaming process of the refrigerator body, so that the automatic foaming quality improvement is realized.

An improved system for treating, precooling, and handling perishable products uses a mobile container enhanced with increased capacity refrigeration and air flow to recirculate functional substances including sanitizers, and ripening management and conditioning agents across the surface of palletized perishable products during the precooling step. Sanitizing substances are dispensed into the recirculating air to significantly reduce micro-organisms on the surface coming from the field and avoid recontamination from the cooling warehouse. Conditioning and ripening management substances are recirculated to enable managing the ripeness of a perishable to a target. The mobile container is able to operate independently outside of a refrigerated warehouse used for storage and distribution of the cooled perishable product. The mobile container can be located near harvest or facilities with no colling assets. A combined system using conveyors and operational controls provides automated handling of the perishables from receiving, precooling and treatment and then distribution.

The invention discloses an air cooler distributed dynamic defrosting control method, and relates to the technical field of air cooler distributed defrosting, and the method comprises the following steps: obtaining the spatial position and wind direction and flow direction information of an air cooler in a refrigeration environment and the defrosting exhaust state of an adjacent air cooler, building a heat exchange state space-time perception map based on a space coordinate relation, and obtaining a heat exchange state space-time perception map; the determination module is used for determining whether the air cooler is interfered by defrosting airflow of adjacent air coolers; acquiring temperature, humidity, current and air volume data of the air coolers which are determined to be interfered by defrosting airflow of the adjacent air coolers, constructing a heat exchange characteristic curve of the target air cooler in the current time period, and performing residual error fitting calculation on the heat exchange characteristic curve and a standard heat exchange curve in a historical non-defrosting state; and determining the local heat exchange parameter distortion performance of the air cooler caused by the defrosting airflow interference of the adjacent air cooler. The problem that defrosting is triggered by mistake due to the fact that the air cooler is interfered by defrosting airflow is solved, and accurate recognition and dynamic control optimization of the defrosting requirement are achieved.

A vehicle control device and a method thereof are provided. The vehicle control device includes a processor, a memory, a battery, a battery heater, and a battery chiller. The processor determines a mode associated with a coolant, using at least one of a target distance of a vehicle, a traveling start time, or an outside air temperature, or any combination thereof, before the vehicle travels. The processor identifies a first threshold temperature using a designated first dataset, heats a temperature of the coolant up to the first threshold temperature using the battery heater, and identifies a second threshold temperature using a designated second dataset, in response to determining the mode associated with the coolant is a cool storage mode, and cools the temperature of the coolant up to the second threshold temperature using the battery chiller, while the coolant flows through the coolant flow line.

The cold storage comprises a cold storage body, and an opening capable of being opened and closed is formed in the front end of the cold storage body; the refrigeration house further comprises at least one storage mechanism. Each storage mechanism comprises a supporting frame and at least one storage assembly. The supporting frames are arranged in the refrigeration house body at intervals in the left-right direction, and the storage assemblies on the same storage mechanism are arranged on the corresponding supporting frames at intervals in the up-down direction. Each storage assembly comprises a feeding rail, a transferring rail and a taking-out rail, and the feeding rails, the transferring rails and the taking-out rails are all arranged on the supporting frame. The feeding rail is used for sequentially conveying to-be-refrigerated article boxes to the transferring rail from front to back, the transferring rail is used for sequentially conveying the article boxes to the taking-out rail, and the taking-out rail is used for sequentially conveying the article boxes from back to front. The refrigeration house is ingenious in layout, convenient to use and high in space utilization rate, and cargoes can be conveniently and reasonably placed.

The invention relates to a control method of refrigeration equipment, the refrigeration equipment and a refrigerator and relates to the technical field of refrigeration, and the method comprises the steps that under the condition that the temperature of an object in the refrigeration equipment is smaller than a preset temperature, the cooling speed change rate of the object is determined; under the condition that the cooling speed change rate is smaller than a preset value, the freezing temperature of the article is obtained according to the target cooling speed of the article; and the refrigeration temperature in the refrigeration equipment is adjusted to be higher than the freezing temperature. By means of the control method of the refrigeration equipment, the refrigeration equipment and the refrigerator, the freezing temperatures of different objects can be obtained, the refrigeration temperature is adjusted to be higher than the freezing temperature, and the object freezing probability is reduced.

The invention belongs to the technical field of automation, and particularly discloses a multi-temperature cold chain warehouse logistics cabinet and an intelligent goods taking system. The multi-temperature cold chain warehouse logistics cabinet comprises a cabinet body, a refrigeration external unit, an intelligent control terminal, a partition plate, a refrigerator, a temperature sensor, a goods taking opening, a displayer, a rotation translation mechanism and the like. The interior of the cabinet body is divided into multiple layers of storage spaces by partition plates, each layer is provided with an independent refrigerator and an independent temperature sensor, and independent temperature control of a single container can be achieved; a plurality of cargo boxes are movably connected in each layer of storage space, and the cargo boxes are driven by a rotary translation mechanism to rotate and translate to a cargo taking opening along a preset track; the operation side is provided with a plurality of goods taking openings and at least one displayer. The multi-cargo-box independent temperature control system is simple in structure, can achieve multi-cargo-box storage and has the single-cargo-box independent temperature control function. According to the scheme, the limitation of a single temperature zone of a traditional cold chain is broken through, the refrigeration quality problem is solved, unmanned goods storage and taking are achieved, and intelligent development of the cold-chain logistics industry is promoted.

The invention relates to an intelligent refrigeration area pedestrian flow and refrigeration power self-adaptive adjusting method which comprises the steps that temperature distribution data and pedestrian flow data are obtained from a sensor in a refrigeration area, and the external heat transfer amount is determined; according to the temperature distribution data and the external heat transfer amount, the inter-area cooling capacity distribution deviation is calculated, and the cooling capacity distribution proportion is determined; according to the cooling capacity distribution proportion, the fan air outlet angle and the air volume distribution proportion are adjusted, and an air volume distribution control signal is generated; according to the air volume distribution control signal, a cooling capacity delivery path is calculated, and the cooling capacity delivery direction is determined; according to the cooling capacity conveying direction and the regional cooling capacity distribution deviation, the compressor operation frequency and the air distribution proportion are adjusted, and cooperative control parameters are generated; and according to the cooperative control parameters, a cooling capacity distribution scheme is updated, a temperature uniformity index and a cooling capacity utilization rate are obtained, and a refrigeration efficiency index is determined.

The utility model discloses a cold storage double-air-curtain system which comprises a circulating fan, an air supply pipeline, an air return pipeline, a temperature monitoring unit, a goods monitoring unit and a control unit, the temperature monitoring unit comprises a cold storage room temperature probe, a return room temperature probe and a pass room temperature probe, and the goods monitoring unit is arranged in a return room. Comprising a first infrared sensor arranged above an inner garage door and a second infrared sensor arranged above an outer garage door. The temperature probe is used for monitoring the temperature of a warehouse-in and warehouse-out area, when heat exchange energy caused by temperature difference exceeds a preset value, the circulating fan is started to supply air to the opening after the warehouse door is opened, and in the warehouse-in and warehouse-out process, the infrared sensor is used for monitoring height and width information of warehouse-in and warehouse-out goods and transmitting the height and width information to the controller; the working number of the air supply outlets and the air supply speed are adjusted according to the height and width of goods, heat exchange between a cage returning room and a refrigerating room and heat exchange between the cage returning room and a penetrating room are reduced to the maximum extent, and the energy utilization efficiency of the refrigeration house is improved.

The invention provides a refrigerator factory performance automatic detection method and system, and the method comprises the steps: transmitting operation state data to a production test server in real time during the operation of a factory detection program through a built-in wireless communication module of a refrigerator; the production test server collects running state data of the multiple refrigerators which are judged to be qualified manually in a factory detection program, extracts a preset range of key parameters based on the running state data, and generates a test parameter set; and comparing the real-time operation state data of the refrigerator to be detected with the test parameter set, and if any key parameter exceeds a preset range, determining that the refrigerator is unqualified. The refrigerator is automatically connected with the production test server at the production line detection station, detection at the freezing stage, the refrigeration stage and the defrosting stage is executed in sequence, efficiency is high, maintenance cost is low, the requirement for variety diversification of refrigerators is met, test efficiency is improved, the problems that a traditional method is high in cost and low in efficiency are solved, the requirement for variety diversification of refrigerators is met, and product quality is improved. And the product quality stability is ensured.

The utility model provides refrigeration equipment. The refrigeration equipment comprises a shell; a drawer; a moisture permeable structure; a refrigeration air supply outlet is formed in the refrigeration chamber, an air return inlet is formed in the fresh-keeping chamber, a first distance is formed between the moisture permeable structure and the inner wall of the fresh-keeping chamber, and the refrigeration air supply outlet is communicated with the air return inlet through the first distance. According to the refrigeration equipment provided by the utility model, the first interval is formed between the moisture-permeable structure and the fresh-keeping chamber, so that air flow entering the refrigeration chamber can only flow to the air return port through the first interval, and the air flow is utilized to take away water accumulated on the moisture-permeable structure and damage humidity accumulation on the surface of the moisture-permeable structure; a dynamic and stable internal and external humidity difference environment is established, the moisture permeable effect of the moisture permeable structure is kept, then the fresh-keeping effect of the refrigeration equipment is guaranteed, and the use experience of a user is improved.

The utility model provides a controlled atmosphere fresh-keeping storehouse pressure balance valve which comprises a communicating piece and a breather valve connected to the end portion of the communicating piece, the breather valve is located on the outer side of a controlled atmosphere fresh-keeping storehouse, and the breather valve is communicated with the inner space of the controlled atmosphere fresh-keeping storehouse through the communicating piece. According to the pressure balance valve, the inner space of the controlled atmosphere fresh-keeping storehouse is communicated with the breather valve located outside the controlled atmosphere fresh-keeping storehouse through the communicating piece, and the breather valve ensures that the controlled atmosphere fresh-keeping storehouse is isolated from the atmosphere within a certain pressure range and can be communicated with the atmosphere when the pressure exceeds or is lower than the pressure range; therefore, loss of cold air in the air-conditioned fresh-keeping storehouse is reduced while it is guaranteed that the cold storage door of the air-conditioned fresh-keeping storehouse is easy to open, when the pressure balance valve of the air-conditioned fresh-keeping storehouse is arranged, only the communicating piece needs to penetrate through the wall body of the air-conditioned fresh-keeping storehouse to enable the inner space of the air-conditioned fresh-keeping storehouse to be communicated with the breather valve, and the arrangement cost is reduced.

The present invention discloses a chip capacitor termination production line based on a thick rubber plate, comprising an assembly mechanism, an implantation mechanism, a pressing mechanism, a leveling mechanism, a slurry dipping mechanism, a drying mechanism, a cooling storage mechanism, a plate changing mechanism, a discharge mechanism and a transfer clamp; the slurry dipping mechanism, the drying mechanism and the cooling storage mechanism are each provided with two, and the assembly mechanism, the implantation mechanism, the pressing mechanism, the leveling mechanism, a slurry dipping mechanism, a drying mechanism, a cooling storage mechanism, a plate changing mechanism, another slurry dipping mechanism, another drying mechanism, another cooling storage mechanism and a discharge mechanism are provided in sequence; the assembly mechanism is used to place the lead-in plate on top of the thick rubber plate and form an assembly. The chip capacitor termination production line based on a thick rubber plate proposed in this scheme realizes the fully automatic operation of the chip capacitor termination process, can effectively improve the termination efficiency and the termination accuracy of the chip capacitor, and is conducive to reducing the labor cost in the termination process.

The invention provides a refrigerator, a control method and device of the refrigerator and a storage medium. The refrigerator comprises a compressor, an electromagnetic valve, a freezing evaporator, a freezing fan, a refrigeration evaporator and a refrigeration fan, and the electromagnetic valve is connected with the freezing evaporator through a first branch; the electromagnetic valve is further sequentially connected with the refrigeration evaporator and the freezing evaporator through a second branch. The method comprises the steps that the environment temperature of the refrigerator is obtained; if the environment temperature is higher than the first preset environment temperature, the electromagnetic valve is controlled to distribute the refrigerant to the second branch; and the compressor, the freezing fan and the refrigeration fan are controlled to be started and stopped according to a preset strategy. According to the method, when the environment temperature is high, the refrigeration evaporator and the freezing evaporator are directly controlled to be connected in series, switching is conducted when the environment temperature has small influence on the refrigeration effect, and the problem that the compartment temperature is slowly lowered when the environment temperature is high is avoided.

The invention discloses a chilled water storage system and relates to the technical field of chilled water storage systems, the chilled water storage system comprises a cold storage tank and further comprises an upper water distribution plate, a lower water distribution plate, a water inlet pipe and a water distribution assembly, the water distribution assembly comprises a water distribution sleeve, a water distribution plate, a partition plate, a partition ring, an adjusting sleeve and an extension rod, and the height of the partition ring is sequentially increased from inside to outside; the upper end of the partition ring is in contact with the partition plate; the adjusting sleeves are rotationally connected with the water diversion sleeve in a sealed mode, and the multiple adjusting sleeves are evenly arranged in the axial direction of the water diversion sleeve; the extension rod is connected to the middle of the adjusting sleeve in a sealed and sliding mode, and a plurality of compensation holes are formed in the lower end of the extension rod and used for enlarging the water distribution area. By arranging the components, the purpose of reducing the gap between the water segregators is effectively achieved, the cold storage efficiency is improved, and a production water source and an emergency water source with stable water temperature can be provided for production.

The invention relates to the technical field of medical cold chain transportation, in particular to a portable intelligent medical refrigerated transport box suitable for an extreme temperature environment, which comprises a box body, a heat insulation layer is arranged on the inner wall of the box body, and the box body is provided with a storage cabin and an electrical element mounting cabin. An energy supply module, an integrated information processing module and a temperature control system are mounted in the electrical element mounting cabin; an information display and control panel is arranged on the side wall of the box body; the integrated information processing module is used for collecting temperature data in the storage cabin and position information of the medical refrigerated transport box; the temperature control system is used for regulating and controlling the temperature in the storage cabin; according to the invention, the working temperature range is effectively expanded, the extreme temperature adaptability is effectively improved, and 99% of extreme climate regions in the world can be covered; the semiconductor refrigeration / heating cooperative control is combined with the precise regulation and control of the data processing module, so that the quick response to the temperature change in the box is realized, the response time is greatly shortened, the temperature fluctuation is reduced, and the activity and quality of medical supplies can be better guaranteed.

The present invention discloses a portable refrigeration device for transporting red wine, and relates to the field of household red wine refrigeration. The portable refrigeration device for transporting red wine comprises a storage box, a refrigeration compressor, a plurality of extrusion units, a support unit, a plurality of adjustment units and a plurality of sealing units. The portable refrigeration device for transporting red wine clamps red wine bottles of different sizes through the extrusion unit to prevent the red wine from colliding due to shaking, and ensures the preservation of each bottle of wine stored in the storage box by transmitting the cold air generated by the refrigeration compressor through the main connecting pipe and the slave connecting pipe. The red wine cork is limited in the red wine bottle mouth by the sealing block contacting and extruding the red wine bottle mouth, ensuring the sealing effect of the red wine, pushing the limit plate to the center position, and limiting the red wine bottle mouth with the bottle body, so that the red wine limitation is more stable.

The utility model discloses refrigeration equipment, and belongs to the technical field of electrical equipment. The refrigeration equipment comprises a box body, a refrigerating chamber, a freezing chamber and a wide variable-temperature chamber, the first middle partition plate divides an inner cavity of the refrigerating chamber into two refrigerating cavities, a first air outlet flow channel is formed in the first middle partition plate, and first air outlets are formed in the two side walls of the first middle partition plate correspondingly; the second middle partition plate is arranged between the freezing chamber and the wide variable-temperature chamber, a second air outlet is formed in the second middle partition plate, the freezing chamber is communicated with the second air outlet flow channel through the second air outlet, and the second air outlet is formed between the second middle partition plate and the rear wall of the freezing chamber; and the air guide piece is arranged in the wide variable-temperature chamber, a fourth air outlet flow channel is formed in the air guide piece, the fourth air outlet flow channel communicates with the air outlet cavity, a fourth air outlet is formed in the air guide piece, and the fourth air outlet communicates with the fourth air outlet flow channel and the wide variable-temperature chamber. The refrigeration equipment provided by the utility model can give consideration to the ultrathin specification, sufficient storage capacity and stable refrigeration performance.

The invention relates to a refrigerator air duct control system, method and device, a refrigerator, equipment and a storage medium. The method comprises the steps that refrigerator environment parameters and user behavior data corresponding to a preset refrigerator are detected; according to the refrigerator environment parameters corresponding to the refrigerator and the user behavior data, a frosting index corresponding to the refrigerator is determined; and according to the frosting index, a preset air door assembly is controlled to adjust the communicating position, so that an air return duct of the refrigerator is switched between communicating of an evaporator cavity and communicating of a compressor bin. According to the air duct system, the double-air-path structure is adopted, the air return duct can be communicated with the evaporator cavity or the compressor bin according to the frosting index, when the air return duct is communicated with the compressor bin, external air rushing into the refrigerating chamber can be guided to the compressor bin, and therefore the condenser and the compressor in the compressor bin can be cooled, and the refrigerating efficiency can be improved. The energy consumption of the system is reduced, damp and hot air can be prevented from entering the evaporator cavity, and the frosting probability of the evaporator is effectively reduced.

1. Name of the product in this design: Car refrigerator (1). 2. Purpose of this design: For storing and refrigerating items in a vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to the technical field of air duct noise reduction, in particular to a refrigerating and freezing device, an air duct structure and a design method of the air duct structure. The design method of the air duct structure comprises the steps that the number and distribution of fins in an original air duct structure are obtained, and the initial number and initial distribution are obtained; the vibration and noise reduction performance of the original air duct structure is obtained, and the target vibration and noise reduction performance is obtained; and at least based on the initial number and the initial distribution, fins insensitive to sound insulation and vibration isolation are removed, and a final air duct structure capable of achieving the target vibration and noise reduction performance is obtained. The problem that an existing air duct structure cannot well balance the noise reduction effect and the production cost is solved, and the purpose of reducing the use amount of fins on the basis of meeting the same noise reduction performance is achieved.

The utility model discloses a stem cell detection kit, which belongs to the technical field of kits and comprises a heat preservation box used for containing a liquid medium, a box cover arranged on the heat preservation box in a covering mode, and a movable installation plate clamped on the heat preservation box and connected with a plurality of reagent tube storage tubes in a threaded mode. The outer wall of the heat exchange pipe is fixedly connected with a plurality of heat exchange fins which are vertically arranged. According to the technical scheme, an ice-water mixture or a low-temperature cold source medium is contained in the heat preservation box, the temperature of the reagent tube storage tube can be rapidly reduced through heat exchange, when a reagent tube is placed in the reagent tube storage tube, the reagent tube and the reagent tube storage tube can make close contact, and then the effects of reducing the temperature of a reagent in the reagent tube and prolonging the effective time of the reagent are achieved; a plurality of heat exchange fins are arranged on the surface of the heat exchange pipe, the heat exchange efficiency can be further improved, and the refrigeration effect is ensured.

The invention provides an energy-saving stirring type vacuum deodorization device, which relates to the technical field of plastic processing, and comprises a stock bin, a plurality of groups of vacuum deodorization tanks, a cooling storage tank, a hot air conveying pipeline and a vacuum control pipeline, a discharge port of the vacuum deodorizing tank is communicated with the cooling storage tank through the finished product conveying pipeline, the hot air conveying pipeline and the vacuum control pipeline are both communicated with the vacuum deodorizing pipe tank, the hot air conveying pipeline is used for conveying air to the vacuum deodorizing tank and the cooling storage tank, and the vacuum control pipeline is used for controlling the cooling condition of the vacuum deodorizing tank. The device is used for deodorizing materials, through circulation of a heating condition and a vacuum condition, the heating time of the materials is shortened, raw materials are prevented from being decomposed in the deodorizing process, meanwhile, energy consumption needed by heat compensation is extremely low, the pressure difference between the inner surface area and the outer surface area of particles is created through the vacuum environment, the deodorizing efficiency is improved, and energy consumption is reduced.

The present invention belongs to the technical field of cooling, and specifically relates to a direct water-cooling storage and cooling system, which includes a cooling tower, a cooling pump, a cooling main unit, a chilled water pump, a water distributor, a water collector, a central air conditioner, a storage and discharge pump, and a check valve; the cooling tower is connected to the cooling main unit through a water pipe; the cooling main unit is connected to the water distributor through a water pipe; the water distributor is connected to the central air conditioner through a water pipe; the central air conditioner is connected to the water collector through a water pipe; the water collector is connected to the chilled water pump through a water pipe; the chilled water pump is connected to the cooling main unit through a water pipe; the cooling main unit is connected to the cooling pump through a water pipe; the present invention provides a direct water-cooling storage and cooling system to solve the problems that the operation of the water-cooling storage and cooling system is too cumbersome, not concise enough, the system setting and system operation require a large amount of manpower and material resources, and the system is prone to confusion, resulting in the situation of alternating cooling and heat release.

The invention discloses a low-temperature refrigeration device for pea seeds, and relates to the technical field of low-temperature refrigeration of seeds, the low-temperature refrigeration device comprises a refrigeration box, the refrigeration box is rotatably connected with a box door, a cooling frame is fixedly connected in the refrigeration box, one side of the cooling frame is fixedly connected with an air cooler, the cooling frame is fixedly connected with a plurality of connected air guide pipes, and the air cooler is communicated with the air guide pipes; the cooling frame is provided with an inclined face inclining towards one side of the air guide pipe. Cold air is introduced to refrigerate pea seeds, water drops condensed on the surfaces of the pea seeds and packaging bags of the pea seeds are blown off through the cold air, part of moisture is condensed into the water drops through the cooling frame, and a liquid drainage channel is formed through the flow guide plate, the cooling frame, a liquid opening, a flow guide cavity and a flow guide channel, therefore, the condensed water formed by moisture in the box is prevented from being attached to the surfaces of the pea seeds and packaging bags of the pea seeds during refrigeration, and the seeds are effectively prevented from being mildewed or germinated due to moisture absorption.

A head-worn air pump is provided which directs a stream of air to the goggles between the user and the transparent / translucent surface. The air pump can be attached to the rear portion of the goggle strap, or to an auxiliary or supplemental strap, so as to be behind the user and out of the line of sight of the user. One or more flexible tubes or hoses can be attached to a manifold or plenum receiving air under pressure from the pump, and lead from the rear of the head to one or both sides of the goggles. A rechargeable battery can power the air pump, and the pump can be switched on and off by a button on the pump housing, even by a user wearing gloves or hand coverings. The battery can be recharged by a conventional USB connection. The air can be supplied either at ambient temperature or refrigerated and / or heated, as desired in particular applications.