84results about How to "To achieve the purpose of long-term preservation" patented technology

The invention relates to a refrigeration and freezing device and a drawer assembly thereof. The drawer assembly comprises a barrel body with the front side opened, a drawer capable of being inserted into the barrel body in a front-and-back push-and-pull manner and an electric control lock mechanism. The electric control lock mechanism is configured to be controllably switched to a locking state so as to lock the drawer to the barrel body or switched to an unlocking state so as to relieve locking on the drawer when the drawer is completely pushed into the barrel body. The electric control lock mechanism is provided with an unlocking button protruding and extending downwards, and the unlocking button is configured to be capable of enabling the electric control lock mechanism to be switched to the unlocking state from the locking state when pressed upwards. According to the refrigeration and freezing device and the drawer assembly thereof, the drawer and the barrel body can achieve automatic locking and unlocking, user operation is facilitated, and the drawer can still be unlocked when the electric control lock mechanism is powered off or breaks down.

The invention discloses a silage paper mulberry leaf feed microbial inoculum and a preparation method thereof. The method takes wheat bran, fresh paper mulberry leaves and molasses as culture medium raw materials, adopts a solid-state fermentation technology, scientifically matches aspergillus niger FECJX203.1 with lactobacillus plantarum FECJX108 so as to prepare the silage paper mulberry leaf feed microbial inoculums. The microbial inoculums is used for inoculation according to a certain proportion for silage fermentation of paper mulberry leaves, can degrade tannin content and crude fiber content of paper mulberry and improve nutrients, digestibility and flavor quality of paper mulberry leaves, and simultaneously has the effects of regulating the microbial structure of intestinal tractsof animals and improving intestinal tract functions of animals.

The invention provides a refrigerating and freezing device which comprises a box, a plurality of air-conditioning film components and a sucking pump component, wherein a storage space and a compressor cabin are limited in the box, and a plurality of preservation spaces are arranged in the storage space; each of the air-conditioning film components is equipped with at least one air-conditioning film and an oxygen-rich air collecting chamber and is arranged for causing more oxygen relative to nitrogen in surrounding space airflow of each air-conditioning film component penetrate through the air-conditioning film and enter the oxygen-rich air collecting chamber; and the sucking pump component is arranged in the compressor cabin and is arranged for pumping air in the oxygen-rich air collecting chamber of each preservation space having an air-conditioning requirement out of the preservation space having the air-conditioning requirement. The refrigerating and freezing device provided by the invention utilizes one sucking pump to realize the air conditioning for the plurality of preservation spaces in the storage space, and different atmospheres are realized for different articles stored in different preservation spaces, so that the preservation requirements for different articles can be fully met.

The invention relates to a drawer module and a refrigerating and freezing device with the drawer module. The drawer module comprises a cylinder and a controlled atmosphere membrane module, wherein drawer space is limited in the cylinder; an accommodating cavity is limited in the top wall of the cylinder, and is communicated with the drawer space; the controlled atmosphere membrane module is mounted in the accommodating cavity, and has a controlled atmosphere membrane and an oxygen-enriched gas collecting cavity; and the controlled atmosphere membrane module is configured to enable more oxygen in the accommodating cavity to enter the oxygen-enriched gas collecting cavity through the controlled atmosphere membrane compared with nitrogen in the accommodating cavity. The drawer module can form rich nitrogen and lean oxygen in the drawer space to facilitate a gas atmosphere for food preservation, reduces the aerobic respiration strength of fruits and vegetables, and meanwhile, guarantees basic breathing effect to prevent anaerobic respiration of the fruits and the vegetables so as to achieve the purpose of long-time preservation of the fruits and the vegetables. The drawer module occupies no storage space, and can prevent collision from damaging the controlled atmosphere membrane module.

The invention provides a refrigerator and a drawer assembly thereof. The drawer assembly for the refrigerator comprises a box provided with a forward opening, a drawer arranged in the box in a front-back push-pull manner and provided with a front end plate used for sealing the forward opening, and a transmission cable assembly. The transmission cable assembly comprises a wiring rod and a spiral spring cable, wherein the front end of the wiring rod is fixedly connected to the rear surface of the front end plate and arranged in the front-back direction, the spiral spring cable is arranged on the wiring rod in a sleeving manner, the end portion of the spiral spring cable is fixedly connected to the front end plate so that electric power or signals can be transmitted to a power utilization component on the front end plate, and the spiral spring cable is arranged to be subjected to elastic and telescopic deformation along with front-back movement of the front end plate.

The invention provides a refrigerating and freezing device with an air-regulating fresh-keeping function. The device includes: a box, wherein the inner portion of the box defines a storage space and an enclosed air-regulating fresh-keeping subspace is formed in the storage space; an air-regulating fresh-keeping system, which includes an air-regulating membrane assembly and an aspirator pump, wherein the aspirator pump is configured to make the gas in the air-regulating fresh-keeping subspace permeate through the air-regulating membrane assembly, so that a gas atmosphere that is favorable for food preservation is formed in the air-regulating fresh-keeping subspace of the storage space; a refrigeration system, which is configured to supply cold energy to the air-regulating fresh-keeping subspace; a man-machine interactive system, which is configured to obtain an external operation and determine an air-regulating fresh-keeping index and a temperature index of the air-regulating fresh-keeping subspace according to the external operation; a controller, which is connected with the man-machine interactive system and configured to control the air-regulating fresh-keeping system and the refrigeration system according to the air-regulating fresh-keeping index and the temperature index. Therefore, the device can obtain external settings by the adoption of the friendly man-machine interactive system, and the corresponding air-regulating fresh-keeping control and refrigeration control are carried out.

The invention relates to a gas suction pump assembly and a cold storage and freezing device. The gas suction pump assembly comprises an installing box and a gas suction pump; a containing space is defined in the installing box; at least part of the box wall of the installing box is made from a micro-porous silencing plate; the surface of the micro-porous silencing plate is provided with a plurality of silencing through holes; the gas suction pump is arranged in the installing box; and the micro-porous silencing plate is arranged to absorb noise generated by the gas suction pump when the gas suction pump runs. By means of the micro-porous silencing plate, the gas suction pump assembly reduces outward spreading of the noise when the gas suction pump runs.

The invention provides a microporous preservative BOPP film, and belongs to the technical field of biaxially oriented polypropylene films. The microporous preservative BOPP film comprises an upper surface layer, a core layer and a lower surface layer, the upper surface layer is arranged on an upper surface of the core layer, the lower surface layer is arranged on a lower surface of the core layer, the microporous preservative BOPP film is characterized in that the upper surface layer is an anti-adhesion layer, a preset number of micropores formed by laser boring are uniformly formed in the surfaces of the upper surface layer and the lower surface layer, as the laser boring is added in the last procedure of film preparation in the preparation method, the process is simple, the control is accurate, the distances and sizes of the micropores can be adjusted, the prepared film has good air permeability and mechanical property, no micropore defective tearing is generated, and the microporous preservative BOPP film is suitable for averagely regulating and controlling the atmosphere in the package so as to play a better preservative effect.

The invention relates to an air extracting pump assembly and a refrigerating and freezing device. The air extracting pump assembly comprises a sealing box where a sealing space is defined, and an air extracting pump arranged in the sealing box. The sealing box comprises a lower box body with the upper side opened, and an upper box body with the lower side opened. A sealing cover of the sealing box is buckled on the upper side of the lower box body so that the sealing space of the sealing box can be defined by the sealing cover and the lower box body together. The rear end of the upper box body is hinged to the rear end of the lower box body. The front end of the upper box body is fastened at the front end of the lower box body in a thread connection manner. By means of the air extracting pump assembly, outward propagation of the noise of the air extracting pump can be reduced, and the air extracting pump is convenient to disassemble and assemble.

The invention relates to a refrigerator and a storage container for the refrigerator. The storage container comprises an air pressure adjusting valve installed on a barrel, one end of the air pressure adjusting valve communicates with the interior space of the barrel, and the other end of the air pressure adjusting valve communicates with the exterior space of the barrel. The air pressure adjusting valve is arranged to enable the interior space of the barrel to communicate with the exterior space of the barrel through the air pressure adjusting valve under the action of the pressure difference between the interior space and the exterior space of the barrel, so that air in the interior space of the barrel flows out to the exterior space of the barrel through the air pressure adjusting valve, or air in the exterior space of the barrel flows into the interior space of the barrel through the air pressure adjusting valve. In addition, the invention provides the refrigerator provided with the storage container. According to the refrigerator and the storage container for the refrigerator, the balance between the internal pressure and the external pressure of the storage container is kept as much as possible, so that a drawer is convenient to open.

The invention provides a refrigerating and freezing device. The refrigerating and freezing device comprises a tank body, an oxygen-enrichment membrane assembly and an air extractor, wherein a first storage space is defined in the tank body and internally provided with a storage container; the storage container is internally provided with a modified atmosphere packaging space; the oxygen-enrichment membrane assembly is provided with at least one oxygen-enrichment membrane and an oxygen-enrichment gas collecting cavity; the space around the oxygen-enrichment membrane assembly communicates with the modified atmosphere packaging space and is arranged in the mode that more oxygen in airflow in the space around the oxygen-enrichment membrane assembly penetrates through the oxygen-enrichment membranes to enter the oxygen-enrichment gas collecting cavity than nitrogen in the airflow in the space around the oxygen-enrichment membrane assembly; and the air extractor communicates with the oxygen-enrichment gas collecting cavity through a pipeline so that the gas entering the oxygen-enrichment gas collecting cavity can be extracted and exhausted out of the storage container. The refrigerating and freezing device is good in preservative effect, the requirements for rigidity and strength of the storage container and the like are low, the realizing requirement is low, and the cost is low; and the refrigerating and freezing device is small in size, low in noise and quite suitable for households and individuals.

The invention discloses a method for collecting nitrosobacteria. The method comprises the following steps: 1) preparing a protective agent, namely adding 2-4 parts of sodium glutamate, 18-25 parts oftripotassium phosphate and 1-3 parts of cysteine into 90-120 parts of sterile water, and uniformly mixing to obtain the protective agent; 2) adding thalli, namely 0.8-1.2 times that of the volume of nitrosobacteria thalli into the protective agent obtained in the step 1), and performing shock re-suspending so as to obtain a mixed solution; and 3) freezing and preserving, namely performing freeze drying on the mixed solution obtained in the step 2), freezing and preserving at a temperature of 70-90 DEG C, and performing activation transfer every 2-3 months. The method disclosed by the inventionhas the beneficial effects that damage of freeze drying on the nitrosobacteria thalli can be greatly reduced, and the nitrosobacteria survival rate and activities of ATP synthase and ammonia monooxygenase (AMO) in the preservation process are improved.

The invention provides a refrigerating and freezing device. The refrigerating and freezing device comprises a box body, a gas separator and a sucking pump, wherein storage spaces are defined in the box body, storage containers are arranged in the storage spaces, and gas regulating freshness retaining spaces are arranged in the storage containers; the gas separator is provided with a gas regulating film, a first gas collection cavity and a second gas collection cavity, the gas regulating film is configured into a manner that more oxygen, relative to nitrogen in air, in air in the first gas collection cavity penetrates the gas regulating film to enter the second gas collection cavity, the first gas collection cavity is controlled to communicate with storage chambers so that the air in the storage chambers can enter the first gas collection cavity, the first gas collection cavity is further controlled to communicate with the gas regulating freshness retaining spaces so that other gas, without the gas entering the second gas collection cavity through the gas regulating film, in the air entering the first gas collection cavity can enter the gas regulating freshness retaining spaces; and the sucking pump communicates with the second gas collection cavity through a pipeline so that the gas penetrating the second gas collection cavity can be promoted to be extracted out of the gas separator.