CN113415544A - Energy storage plate, thermostat and working method of thermostat - Google Patents

Abstract

The invention relates to the technical field of constant-temperature transportation equipment, in particular to an energy storage plate, which comprises a hollow plate body and a plate core arranged in the plate body, wherein the plate core comprises two main pipes arranged in parallel and at least two flat pipes arranged between the two main pipes in parallel, the flat pipes and the two main pipes are positioned in the same plane and are communicated with each other inside to form an energy-carrying agent flow channel cavity monomer, and the plate core is provided with an inlet and an outlet for the energy-carrying agent to enter and exit; an accommodating cavity for accommodating energy storage agent is formed between the outer wall of the plate core and the inner wall of the plate body. Meanwhile, the invention also provides a constant temperature box manufactured by using the energy storage plate and a working method of the constant temperature box. According to the energy storage plate, the thermostat and the working method of the energy storage plate, the problems that the existing aluminum plate energy storage plate is easy to leak, the tube bank type energy storage plate is troublesome to manufacture and the heat exchange area is small can be effectively solved.

Description

Energy storage plate, thermostat and working method of thermostat

Technical Field

The invention relates to the technical field of constant-temperature transportation equipment, in particular to an energy storage plate, a constant-temperature box and a working method of the constant-temperature box.

Background

At present, cold chain transportation mainly depends on a refrigerating unit on a refrigerator car for cooling, the carriage is often filled with various cargos in a mixed mode in order to reduce transportation cost, and due to the fact that unloading is needed in batches when different destinations are reached, severe fluctuation of temperature in the carriage can be caused every time unloading is carried out, and energy consumption is increased; and the phenomenon of cold chain 'chain breakage' is often easily caused by the reasons of diet rest of a driver in the long-distance transportation process and the like. The existing passive cold accumulation incubator technology needs to realize long-time heat preservation under the condition of not recharging cold, so a certain amount of cold accumulation agent needs to be carried. However, to cool the coolant at normal temperature to a temperature below its phase transition temperature, a large amount of cooling energy is required, and this cooling energy needs to be provided by a refrigerant. At present, the problems of low cooling filling speed and long turnover time generally exist in the mode, and the mode cannot be really used for cold-chain logistics production.

In order to solve the problem, the inventor applies two practical novel patents related to cold storage boxes, and the utility model with the publication number of CN211033700U discloses a cold storage insulation box, which comprises a shell, an inner container positioned on the inner wall of the shell and a partition plate mechanism used for separating a space, wherein the inner container comprises a secondary refrigerant layer and a cold storage agent layer, the secondary refrigerant layer and the cold storage agent layer are both composed of two outer plates and an inner bin between the two outer plates, the top end of the outer plate at one end of the secondary refrigerant layer is provided with an input port, the bottom of the outer plate at the other end of the secondary refrigerant layer is provided with an output port, the inner bin of the cold storage agent layer is filled with the cold storage agent, and lacing wires are uniformly arranged between the outer plates; the outer plate is made of thin aluminum plate. The cold accumulation insulation can leads low-temperature secondary refrigerant into the secondary refrigerant layer through the cold charging equipment, exchanges heat with the cold accumulation agent in the cold accumulation agent layer, takes away the heat of the cold accumulation agent layer, and realizes the functions of cold accumulation and heat insulation. However, in the practical implementation process, the inventor finds that the aluminum plate is difficult to weld, and the formed secondary refrigerant layer and the cold storage agent layer have the leakage phenomenon after repeated tests, so that the long service life of the secondary refrigerant layer and the cold storage agent layer is difficult to ensure.

The utility model with the publication number of CN211041510U discloses a double-layer heat-insulating high-efficiency heat-preserving parallel type rapid cold charging device, which comprises a box body and a parallel type secondary refrigerant tube row, wherein an aluminum plate jacket cold storage agent pool is arranged inside the box body, the parallel type secondary refrigerant tube row is arranged inside the aluminum plate jacket cold storage agent pool, and the aluminum plate jacket cold storage agent pool is filled with a cold storage agent; the parallel secondary refrigerant tube bank comprises a liquid inlet main pipe, a liquid outlet main pipe and a plurality of branch pipes, wherein the liquid inlet main pipe and the liquid outlet main pipe are respectively arranged at two ends of the interior of the aluminum plate jacket coolant pool, and the branch pipes are connected in parallel between the liquid inlet main pipe and the liquid outlet main pipe. The use mode of the cold storage insulation box is similar to that of the cold storage insulation box, low-temperature secondary refrigerant is filled into the parallel secondary refrigerant tube rows through cold filling equipment, heat exchange is carried out between the tube walls and cold storage agents outside the tube rows, and the cold storage insulation function is finally realized. Similarly, in the actual manufacturing process, the manufacturing of the tube bank is troublesome, and the contact area between the outer surface of the tube bank and the coolant is small, so that the efficiency is still somewhat deficient. Based on the above two problems, it is necessary to design a new technical solution to solve the problems comprehensively.

Disclosure of Invention

The invention aims to provide an energy storage plate, a constant temperature box and a working method thereof, which can effectively solve the problems that the existing aluminum plate cold storage plate is easy to leak, the tube row type cold storage plate is troublesome to manufacture and the heat exchange area is small.

In order to solve the technical problems, the invention adopts the following technical scheme:

an energy storage plate comprises a hollow plate body and a plate core arranged in the plate body, wherein the plate core comprises two main pipes arranged in parallel and at least two flat pipes arranged between the two main pipes in parallel, each flat pipe and the two main pipes are positioned in the same plane and are communicated with each other inside to form an energy carrying agent flow channel cavity monomer, and an inlet and an outlet for an energy carrying agent to enter and exit are formed in the plate core; an accommodating cavity for accommodating energy storage agent is formed between the outer wall of the plate core and the inner wall of the plate body. The energy-carrying agent is a secondary refrigerant or a heat-carrying agent, and the energy-storing agent is a cold-storage agent or a heat-storage agent.

Preferably, the main pipe is a circular pipe, and the diameter of the main pipe is larger than the thickness of the flat pipe; the inner wall of the plate body is tightly attached to the outer wall of the main pipe, and the accommodating cavity is formed between the outer wall of the flat pipe and the inner wall of the plate body.

Preferably, the plate core is made of aluminum, the plate body is made of plastic, and the side wall of the plate body is provided with an anti-frost-crack elastic plate; because the energy storage agent is filled in the containing cavity, and the amount of the energy storage agent is in direct proportion to the constant temperature time, the more the energy storage agent is, the longer the constant temperature time is kept; therefore, in order to prolong the constant temperature duration, more energy storage agents need to be filled, and the plate body is made of plastic with deformation capacity; however, even with plastics, there is still the possibility of frost cracking. In order to solve the problem, an elastic latex plate can be arranged on the side wall of the plate body, and a certain accommodating space is provided for phase change of the energy storage agent by utilizing the deformation property of the latex plate, so that the problem of preventing the plate body from cracking due to expansion is solved.

The constant temperature box comprises a heat insulation layer, a partition plate layer and energy storage plates arranged between the heat insulation layer and the partition plate layer, wherein the heat insulation layer forms an outer box of the constant temperature box, the partition plate layer forms an inner box of the constant temperature box, and the energy storage plates are positioned between the outer box and the inner box and are arranged in a manner of being tightly attached to the outer box and the inner box; the energy-carrying agent flow channel cavity monomers of the energy storage plates are communicated to form a flow channel cavity, a cold filling port is formed in the outer wall of the outer box, and an energy-carrying agent inlet and an energy-carrying agent outlet of the flow channel cavity are located in the cold filling port.

Wherein the outer box is formed by an integral foaming technology; the inner box is made of aluminum; a temperature display device is also arranged outside the constant temperature box.

The working method of the incubator comprises the following steps:

the cold charging equipment pre-refrigerates the energy-carrying agent contained in the cold charging equipment by using a refrigerating unit;

respectively connecting an energy carrier inlet and an energy carrier outlet of the runner cavity with an energy carrier exchange interface of the cold charging equipment, continuously charging the pre-refrigerated energy carrier into the runner cavity from the runner cavity inlet by using a working pump, and refluxing the pre-refrigerated energy carrier to the cold charging equipment from the outlet;

the energy carrying agent in the runner cavity exchanges heat with the energy storage agent in the containing cavity, and the energy storage agent undergoes phase change, so that the temperature of the energy storage agent is reduced to a preset temperature.

The energy storage plate that provides among the above-mentioned technical scheme, including plate core and plate body, wherein the plate core is responsible for by two and two at least flat pipe groups constitute, and inside forms the runner chamber monomer that supplies the circulation of energy-carrying agent, forms the chamber that holds of holding energy storage agent between plate body and the plate core, and the plate core adopts this shape can effectively increase the heat transfer area of energy-carrying agent and energy storage agent, improves and fills cold speed. In addition, in order to improve the combination stability of the plate core and the plate body, the main pipe is arranged to be a round pipe, the diameter of the round pipe is larger than the thickness of the flat pipe, so that a containing cavity can be formed between the plate core and the plate body, the attaching degree of the plate body and the main pipe can be improved, and the energy storage plate structure is more compact and stable.

The plate core is made of aluminum, the plate body is made of plastic, the aluminum plate core can guarantee high heat exchange rate, the cold charging time is shortened, the plate body made of the plastic has certain deformation capacity, the preparation precision is high, the process is simple, more energy storage agents can be filled in the accommodating cavity, and the time for keeping the energy storage plate at a constant temperature is prolonged.

The technical scheme also provides a constant temperature box made of the energy storage plate, wherein an outer box is formed by a heat insulation layer and used for isolating the external environment from the internal environment of the box body, and an inner box is formed by a partition plate layer and used for protection; the energy storage plate is fixed between the outer box and the inner box, so that a low-temperature environment is formed inside the box body and is used for storing products; meanwhile, energy-carrying agent flow channel cavity monomers of the energy storage plates are communicated to form a flow channel cavity, so that the energy-carrying agent can conveniently circulate in the flow channel cavity, and rapid cooling circulation is formed.

In addition, the invention also provides a working method of the thermostat, and the working method adopts a cold charging mode, namely, cold charging is carried out firstly, then cold discharging is carried out, so that the effect of continuous refrigeration without a power supply is realized; meanwhile, because the temperature of the energy-carrying agent is low, the energy-carrying agent continuously exchanges heat with the energy storage agent through a large-area plate core, the energy of the energy storage agent can be taken away within a few minutes, the phase change of the energy storage agent is caused, the temperature reaches the preset temperature, and the purpose of quick cold charging is achieved.

Drawings

FIG. 1 is a schematic structural view of a core of the present invention;

FIG. 2 is a schematic structural view of the energy storage plate according to the present invention;

FIG. 3 is a schematic structural view of the interior of the energy storage plate according to the present invention;

fig. 4 is a schematic view of the structure of the incubator of the present invention.

In the figure: 1. a board core; 11. a main pipe; 12. flat tubes; 13. an inlet; 14. an outlet; 2. a plate body; 21. filling the opening; 3. an elastic latex sheet; 4. a thermostat; 41. an outer box; 411. a cold charging port; 42. an inner box; 43. a box cover; 431. a sealing strip.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

Example 1

In the embodiment, cold storage is taken as an example to explain the technical scheme of the invention, as shown in fig. 1 and 2, a cold storage plate comprises a hollow plate body 2 and a plate core 1 arranged in the plate body 2, the plate body 2 and the plate core 1 are both made of aluminum, the plate core 1 comprises two main pipes 11 arranged in parallel and two flat pipes 12 arranged between the two main pipes 11 in parallel, the two flat pipes 12 and the two main pipes 11 are positioned in the same plane and are communicated with each other inside to form a coolant flow channel cavity single body, and the plate core 1 is provided with an inlet 13 and an outlet 14 for the coolant to enter and exit; the chamber that holds of coolant is formed between 1 outer wall of board core and the 2 inner walls of plate body, is equipped with the filling mouth 21 that is used for the filling coolant on the plate body 2, and the coolant is water in this embodiment, can adopt aseptic water to prevent inside breeding bacterium etc. and improve the cleanliness that holds the chamber. Specifically, the person in charge 11 of this embodiment is the pipe, and the diameter of being responsible for 11 is greater than the thickness of flat pipe 12, the board body 2 inner wall can hug closely the person in charge 11 outer walls and arrange like this, improve the compactness of cold-storage plate, it holds the chamber to form between flat pipe 12 outer wall and the board body 2 inner wall this moment, hold the intracavity filling through filling mouth 21 and hold 80% water of chamber volume as the coolant, remaining 20% volume is used for holding water and becomes the volume that ice increases, normal condition offal becomes ice, the volume can increase by one tenth, reserve 10% here and be used as preventing the spalling.

Under the condition, the holding cavity cannot be filled with the cold storage agent, the time for keeping the temperature constant is correspondingly reduced, the water body is concentrated at the lower part of the holding cavity under the action of gravity, and when the secondary refrigerant is cooled, the refrigerant is wasted at the upper part of the holding cavity without the cold storage agent; nevertheless, the cold storage plate can still meet the use requirement.

Example 2

In the present embodiment, a cold storage is taken as an example to explain a technical scheme of the present invention, as shown in fig. 1 and fig. 2, a cold storage plate includes a hollow plate body 2 and a plate core 1 disposed in the plate body 2, the plate core 1 is made of aluminum, the plate body 2 is made of plastic, the plate core 1 includes two main pipes 11 disposed in parallel and two flat pipes 12 disposed between the two main pipes 11 and disposed in parallel, the two flat pipes 12 and the two main pipes 11 are located in the same plane and are communicated with each other inside to form a coolant flow channel single body, and the plate core 1 is provided with an inlet 13 and an outlet 14 for a coolant to enter and exit; the chamber that holds of coolant is formed between 1 outer wall of board core and the 2 inner walls of plate body, is equipped with the filling mouth 21 that is used for the filling coolant on the plate body 2, and the coolant is water in this embodiment, can adopt aseptic water to prevent inside breeding bacterium etc. and improve the cleanliness that holds the chamber. Specifically, the person in charge 11 of this embodiment is the pipe, and the pipe diameter of being responsible for 11 is greater than flat pipe 12's thickness, the 2 inner walls of plate body can hug closely the 11 outer walls of being responsible for like this and arrange, improve the compactness of cold-storage plate, it holds the chamber to form between flat pipe 12 outer wall and the 2 inner walls of plate body this moment, hold 90% water of chamber volume as the coolant to holding the intracavity filling through filling mouth 21, remaining 10% volume is used for holding water and becomes the volume that ice increases, it has certain deformability to utilize the plastics material here, the filling volume of coolant can be improved.

Under the condition, only 10% of the space in the accommodating cavity is not filled with water, and compared with the embodiment 1, the constant temperature can be provided for a longer time, but when the secondary refrigerant is cooled, a small section of space without the coolant still exists at the upper part of the accommodating cavity, and a small amount of waste of the refrigerant is still caused; but still can satisfy the cold storage use requirement.

Example 3

In the present embodiment, a cold storage is taken as an example to explain a technical scheme of the present invention, as shown in fig. 1, 2 and 3, a cold storage plate includes a hollow plate body 2 and a plate core 1 disposed in the plate body 2, the plate core 1 is made of aluminum, the plate body 2 is made of plastic, the plate core 1 includes two main pipes 11 disposed in parallel and two flat pipes 12 disposed between the two main pipes 11 and disposed in parallel, the two flat pipes 12 and the two main pipes 11 are located in the same plane and are communicated with each other inside to form a coolant flow channel single body, and the plate core 1 is provided with an inlet 13 and an outlet 14 for a coolant to enter and exit; the chamber that holds of coolant is formed between 1 outer wall of board core and the 2 inner walls of plate body, is equipped with the filling mouth 21 that is used for the filling coolant on the plate body 2, and the coolant is water in this embodiment, can adopt aseptic water to prevent inside breeding bacterium etc. and improve the cleanliness that holds the chamber. Specifically, the person in charge 11 of this embodiment is the pipe, and the diameter of being responsible for 11 is greater than the thickness of flat pipe 12, and 2 inner walls of plate body can hug closely the person in charge 11 outer walls and arrange like this, improves the compactness of cold-storage board, forms between flat pipe 12 outer wall and the 2 inner walls of plate body and holds the chamber this moment, and the filling water is as the cold-storage agent to holding the intracavity through filling mouth 21.

As shown in fig. 3, the plate body 2 made of plastic material is convenient to manufacture and high in precision; in the embodiment, the side wall of the plate body 2 is provided with the clamping groove, the elastic latex plate 3 is fixedly sealed in the clamping groove, the deformation of the elastic latex plate 3 during deformation forms an expansion cavity, and the volume of the expansion cavity is 10% of the total volume of the accommodating cavity; the elastic latex plate 3 can be provided with one piece, two symmetrical pieces, four pieces or six pieces, so that the volume of the expansion cavity of the elastic latex plate 3 can be 10% of the total volume of the accommodating cavity; thus, 100% of cold-storage agent (namely water) can be filled in the cavity formed by the elastic latex plate 3 and the plate core 1. Therefore, the constant temperature time can be ensured, and the waste of the refrigerant can be avoided. In the embodiment, the elastic latex plates 3 are arranged on the inner walls of the plate body 2 with the largest two areas, so that the process is relatively simple and the installation is relatively flexible.

Example 4

The present embodiment is the same as embodiment 1 except that the following technical scheme is adopted: the person in charge is for square pipe, and the length of side of square pipe is greater than the thickness of flat pipe, and flat pipe is equipped with threely.

Example 5

In the present embodiment, a cold storage is taken as an example to explain the technical solution of the present invention, as shown in fig. 1, 2 and 4, a thermostat is provided, the thermostat 4 includes a heat preservation layer, a partition layer and a cold storage plate arranged therebetween, the heat preservation layer is made of Polyurethane (PU) by integral foaming to form an outer box 41 of the thermostat 4; the partition layer is an aluminum wall surface and forms an inner box 42 of the incubator 4; one to six cold storage plates in the embodiment 1 are arranged between the outer box 41 and the inner box 42 and are tightly attached to the outer box and the inner box, wherein the number of the cold storage plates determines the duration of constant temperature, a manufacturer can manufacture the constant temperature box 4 for placing different numbers of the cold storage plates according to the requirements of users, certainly, the weight of the constant temperature box 4 is increased along with the increase of the number of the cold storage plates, and in practical use, because the box cover 43 needs to be opened and closed frequently, the cold storage plates can not be placed at the box cover 43, and the sealing strip 431 can be arranged at the joint of the box cover and the box body to improve the sealing performance of the box body; in order to ensure the basic constant temperature duration, 2-5 cold storage plates can be adopted generally, and when two cold storage plates are selected, the cold storage plates can be symmetrically arranged in the side wall; when three pieces are selected, the box can be placed at the bottom of the box and the two symmetrical side walls; when four blocks are selected, the four blocks can be placed on four side walls of the box body; when the five blocks of the embodiment are selected, four side walls and a box bottom can be placed. When the cold storage plate is installed, the coolant channel cavity monomers of each cold storage plate are communicated through a pipeline to form a whole channel cavity, a cold charging port 411 is reserved on the outer wall of the outer box 41, an inlet 13 and an outlet 14 for the coolant to enter and exit are arranged after the channel cavities are communicated, the inlet and the outlet are both positioned in the cold charging port 411, and a protective cover for protecting the inlet and the outlet 14 can be arranged outside the cold charging port 411.

The incubator 4 can be made into different volumes according to the use requirement, such as a small incubator 4 with 90L volume for distributing small products in the embodiment; the electric tricycle can also be matched with the existing electric tricycle to be made into a small constant-temperature compartment with the volume of 1 cube; the device can also be matched with a large transport vehicle to be used to prepare a large constant-temperature carriage with the volume of 8 cubes; when the constant-temperature carriage is manufactured, at most four cold storage plates can be placed, wherein the bottom surface and one side wall of the carriage are not placed, so that the damage of the cold storage plates on the bottom surface caused by the fact that products are transported to exert large pressure on the bottom surface of the carriage can be prevented, and the two side walls of the carriage are provided with opening and closing doors, so that the products can be conveniently taken and placed. The cold charging time is prolonged along with the increase of the cold storage agent in the cold storage plate, the corresponding constant temperature time is also prolonged, and the constant temperature time of the embodiment corresponds to the constant temperature time of the embodiment 1.

Example 6

In the present embodiment, a cold storage is taken as an example to explain the technical scheme of the present invention, as shown in fig. 1, 2 and 4, a thermostat is provided, the thermostat 4 includes a heat preservation layer, a partition layer and a cold storage plate arranged between the two, the heat preservation layer forms an outer box 41 of the thermostat 4, and is an EPP heat preservation box body; the partition layer is an aluminum wall surface and forms an inner box 42 of the incubator 4; one to six cold storage plates in the embodiment 2 are arranged between the outer box 41 and the inner box 42 and are tightly attached to the outer box and the inner box, wherein the number of the cold storage plates determines the duration of constant temperature, a manufacturer can manufacture the constant temperature box 4 for placing different numbers of the cold storage plates according to the user requirements, certainly, the weight of the constant temperature box 4 is increased along with the increase of the number of the cold storage plates, and during actual use, because the box cover 43 needs to be opened and closed frequently, the cold storage plates can not be placed at the box cover 43, and the sealing strip 431 is arranged at the joint of the box cover and the box body, so that the sealing property is ensured, and the heat exchange with the external environment is reduced; in order to ensure the basic constant temperature duration, 2-5 cold storage plates can be adopted generally, and when two cold storage plates are selected, the cold storage plates can be symmetrically arranged in the side wall; when three pieces are selected, the box can be placed at the bottom of the box and the two symmetrical side walls; when four blocks are selected, the four blocks can be placed on four side walls of the box body; when the five blocks of the embodiment are selected, four side walls and a box bottom can be placed. When the cold storage plate is installed, the secondary refrigerant flow channel cavity monomers of each cold storage plate are communicated through a pipeline to form a whole flow channel cavity, a cold filling opening 411 is reserved on the outer wall of the outer box 41, an inlet 13 and an outlet 14 for secondary refrigerant to enter and exit are arranged after the flow channel cavities are communicated, the inlet 13 and the outlet 14 are both positioned in the cold filling opening 411, and a protective cover for protecting the inlet 14 and the outlet 14 can be arranged outside the cold filling opening 411.

The incubator 4 can be made into different volumes according to the use requirement, such as a small incubator 4 with 90L volume for distributing small products in the embodiment; the electric tricycle can also be matched with the existing electric tricycle to be made into a small constant-temperature compartment with the volume of 1 cube; the device can also be matched with a large transport vehicle to be used to prepare a large constant-temperature carriage with the volume of 8 cubes; when the constant-temperature carriage is manufactured, at most four cold storage plates can be placed, wherein the bottom surface and one side wall of the carriage are not placed, so that the damage of the cold storage plates on the bottom surface caused by the fact that products are transported to exert large pressure on the bottom surface of the carriage can be prevented, and the two side walls of the carriage are provided with opening and closing doors, so that the products can be conveniently taken and placed. The cold charging time is prolonged along with the increase of the cold storage agent in the cold storage plate, the corresponding constant temperature time is also prolonged, and the constant temperature time of the embodiment corresponds to the constant temperature time of the embodiment 2.

Example 7

In the present embodiment, a cold accumulation is taken as an example to explain the technical scheme of the present invention, as shown in fig. 1 to 4, a thermostat is provided, the thermostat 4 includes a heat preservation layer, a partition layer and a cold accumulation plate arranged between the heat preservation layer and the partition layer, the heat preservation layer forms an outer box 41 of the thermostat 4, and is an EPP heat preservation box body; the partition layer is an aluminum wall surface and forms an inner box 42 of the incubator 4; one to six cold storage plates in the embodiment 3 are arranged between the outer box 41 and the inner box 42 and are tightly attached to the outer box and the inner box, wherein the number of the cold storage plates determines the duration of constant temperature, a manufacturer can manufacture the constant temperature box 4 for placing different numbers of the cold storage plates according to the requirement of a user, certainly, the weight of the constant temperature box 4 is increased along with the increase of the number of the cold storage plates, and in actual use, because the box cover 43 needs to be opened and closed frequently, the cold storage plates can not be placed at the box cover 43, and the sealing strip 431 is arranged at the connection part of the box cover and the box body; in order to ensure the basic constant temperature duration, 2-5 cold storage plates can be adopted generally, and when two cold storage plates are selected, the cold storage plates can be symmetrically arranged in the side wall; when three pieces are selected, the box can be placed at the bottom of the box and the two symmetrical side walls; when four blocks are selected, the four blocks can be placed on four side walls of the box body; when the five blocks of the embodiment are selected, four side walls and a box bottom can be placed. When the cold storage plate is installed, the coolant channel cavity monomers of each cold storage plate are communicated through a pipeline to form a whole channel cavity, a cold charging port 411 is reserved on the outer wall of the outer box 41, an inlet 13 and an outlet 14 for the coolant to enter and exit are arranged after the channel cavities are communicated, the inlet and the outlet are both positioned in the cold charging port 411, and a protective cover for protecting the inlet and the outlet 14 can be arranged outside the cold charging port 411.

In addition, in order to more intuitively observe the temperature in the incubator 4, the incubator 4 of the embodiment is further provided with a USB type single temperature recorder sensor for displaying the temperature in the incubator in real time, thereby facilitating monitoring and analysis.

The incubator 4 can be made into different volumes according to the use requirement, such as a small incubator 4 with 90L volume for distributing small products in the embodiment; the electric tricycle can also be matched with the existing electric tricycle to be made into a small constant-temperature compartment with the volume of 1 cube; the device can also be matched with a large transport vehicle to be used to prepare a large constant-temperature carriage with the volume of 8 cubes; when the constant-temperature carriage is manufactured, at most four cold storage plates can be placed, wherein the bottom surface and one side wall of the carriage are not placed, so that the damage of the cold storage plates on the bottom surface caused by the fact that products are transported to exert large pressure on the bottom surface of the carriage can be prevented, and the two side walls of the carriage are provided with opening and closing doors, so that the products can be conveniently taken and placed. The cold charging time is prolonged along with the increase of the cold storage agent in the cold storage plate, the corresponding constant temperature time is also prolonged, and the constant temperature time of the embodiment corresponds to the constant temperature time of the embodiment 3.

Example 8

The embodiment provides a working method of the incubator of the embodiment 5 to 7, which specifically comprises the following steps:

the method comprises the following steps that (1) a refrigerating unit is adopted to refrigerate the glycol secondary refrigerant contained in the refrigerating unit to-20 ℃ in advance by utilizing a refrigerating unit (when different cold storage agents are selected, the refrigerating temperature of the secondary refrigerant is changed along with the cold storage agents, and the refrigerating temperature is generally 20 ℃ lower than the phase change temperature of the cold storage agents);

respectively connecting a secondary refrigerant inlet and a secondary refrigerant outlet of the runner cavity with a secondary refrigerant exchange interface of the cold charging equipment, continuously charging the pre-refrigerated secondary refrigerant into the runner cavity from the inlet of the runner cavity by a working pump, and refluxing the pre-refrigerated secondary refrigerant to the cold charging equipment from the outlet;

the secondary refrigerant in the flow channel cavity exchanges heat with the coolant in the accommodating cavity, and the coolant changes phase to reduce the temperature of the coolant to a preset temperature.

In order to reduce the production cost, water is adopted as the coolant in the embodiments, and in the specific implementation process, different coolants can be selected according to the properties of stored products, so that the filling amount of the coolant can be selected according to the properties of the coolant; the volume of the expansion chamber in example 3 also changes accordingly.

The tests were carried out on the cold charging time and the constant temperature duration of the constant temperature box made of the cold storage plates of examples 1 to 3, and the relevant data are as follows:

in the above table, four cold storage plates are selected for each thermostat, water is selected as a cold storage agent, and ethylene glycol (precooling temperature is-20 ℃) is selected as a secondary refrigerant; the constant temperature duration refers to the time required for the average temperature in the tank to rise from the phase transition temperature of the coolant to 6 ℃ above the phase transition temperature under the test temperature conditions (typically 38 ℃).

Tests show that the heat preservation effects of the PU (polyurethane) heat preservation box and the EPP heat preservation box are basically consistent, but the EPP heat preservation box can be naturally degraded, is harmless to the environment and is very suitable for food preservation and transportation; in particular, an EPP incubator can be used as an outer box during production.

In addition, the utility model with the publication number of CN211041510U discloses a parallel type rapid cold charging device with double-layer heat insulation and high-efficiency heat preservation, which discloses a cold charging device that the temperature in a box rises from 1 ℃ to about 6 ℃ in 50 hours under the high temperature condition in summer, the cold charging time of the cold charging device is 30 minutes actually, and five cold storage plates are selected during the test; correspondingly, the thermostat of embodiment 5 of the invention is correspondingly tested, and the test result is as follows: the time of cold filling is 30 minutes, and the constant temperature time is 53 hours. The results show that the core of the invention not only solves the difficult problem of the process manufacturing (leakage problem) but also can provide constant temperature for a longer time.

Based on the same principle, the energy storage plate in the invention can also be used for heat storage, and only a proper heat carrying agent and a heat storage agent matched with the heat carrying agent are needed to be selected, for example:

the constant temperature of about 30 deg.C is maintained, and 47% Ca (NO) is selected as heat storage agent₃)₂·4H₂O+53％Mg(NO₃)₂·6H₂O or 40% CH₃COONa·3H₂O+60％NH₂CONH₂；

The constant temperature of about 70 ℃ needs to be maintained, and the heat storage agent can be 14 percent LiNO₃+86％Mg(NO₃)₂·6H₂O；

The selection of the heat storage agent is determined according to the use condition, and inorganic hydrated salt, organic phase-change material or other composite phase-change material can be selected; the heat-carrying agent can be high-pressure steam (the temperature can be 135 ℃) with high thermal efficiency, and the specific heat charging time can be determined according to the phase change temperature of the heat-storing agent; taking the 30 ℃ heat preservation condition as an example, the heat filling time of a 90L constant temperature box made of four heat storage plates is 6 minutes, the constant temperature duration can reach 36 hours, and the use requirement is completely met.

The present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent changes and substitutions without departing from the principle of the present invention after learning the content of the present invention, and these equivalent changes and substitutions should be considered as belonging to the protection scope of the present invention.

Claims (9)

1. The utility model provides an energy storage plate, includes hollow plate body and establishes the board core in the plate body which characterized in that: the plate core comprises two main pipes which are arranged in parallel and at least two flat pipes which are arranged between the two main pipes and are arranged in parallel, each flat pipe and the two main pipes are positioned in the same plane and are communicated with each other internally to form an energy-carrying agent flow channel cavity monomer, and the plate core is provided with an inlet and an outlet for the energy-carrying agent to enter and exit; an accommodating cavity for accommodating energy storage agent is formed between the outer wall of the plate core and the inner wall of the plate body.

2. Energy accumulating plate according to claim 1, characterized in that: the main pipe is a round pipe, and the diameter of the main pipe is larger than the thickness of the flat pipe; the inner wall of the plate body is tightly attached to the outer wall of the main pipe, and the accommodating cavity is formed between the outer wall of the flat pipe and the inner wall of the plate body.

3. Energy accumulating plate according to claim 1, characterized in that: the board core is aluminium system, and the plate body is the plastics material.

4. Energy accumulating plate according to claim 3, characterized in that: the side wall of the plate body is provided with an anti-frost-crack elastic plate.

5. Energy accumulating plate according to claim 1, characterized in that: the energy-carrying agent is a secondary refrigerant or a heat-carrying agent, and the energy-storing agent is a cold-storage agent or a heat-storage agent.

6. An incubator, characterized in that: the energy storage plate comprises an insulating layer, a partition plate layer and the energy storage plate, wherein the energy storage plate is arranged between the insulating layer and the partition plate layer and is selected from any one of claims 1 to 4, the insulating layer forms an outer box of the incubator, the partition plate layer forms an inner box of the incubator, and the energy storage plates are positioned between the outer box and the inner box and are arranged in a manner of being tightly attached to the outer box and the inner box; the energy-carrying agent runner cavity monomers of the energy storage plates are communicated to form a runner cavity, the outer wall of the outer box is provided with a cold filling port, and an energy-carrying agent inlet and an energy-carrying agent outlet of the runner cavity are positioned in the cold filling port.

7. Oven according to claim 6, characterized in that: the outer box is formed by an integral foaming technology; the inner box is made of aluminum.

8. Oven according to claim 6, characterized in that: and a temperature display device is arranged outside the constant temperature box.

9. Method for operating an oven as claimed in any one of claims 6 to 8, characterized in that it comprises:

the cold charging equipment pre-refrigerates the energy-carrying agent contained in the cold charging equipment by using a refrigerating unit;

respectively connecting an energy carrier inlet and an energy carrier outlet of the runner cavity with an energy carrier exchange interface of the cold charging equipment, continuously charging the pre-refrigerated energy carrier into the runner cavity from the runner cavity inlet by using a working pump, and refluxing the pre-refrigerated energy carrier to the cold charging equipment from the outlet;

the energy-carrying agent in the runner cavity exchanges heat with the energy storage agent in the containing cavity, the energy storage agent undergoes phase change, the temperature of the energy storage agent reaches the preset temperature, and heat preservation is carried out under the action of the heat preservation layer.

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