阅读说明：本技术 一种利用熔法纺丝技术封装的相变材料及其制造设备 (Phase-change material packaged by using melt spinning technology and manufacturing equipment thereof ) 是由 铁健 柳馨 铁生年 于 2019-10-31 设计创作，主要内容包括：本发明涉及相变储能材料领域,具体涉及到温控相变储能领域或建筑物中温度调控领域。一种利用熔法纺丝技术封装的相变材料,包括熔体材料和芒硝材料,所述相变材料为丝线状,熔体材料包覆于所述芒硝材料外侧。所述熔体材料为CPET、PBT、PTT中的一种或几种。所述芒硝材料为液态芒硝。本发明提供一种芒硝相变材料使用寿命较长,长时间使用后相变材料不产生相分层现象的相变材料。(The invention relates to the field of phase change energy storage materials, in particular to the field of temperature control and phase change energy storage or the field of temperature regulation and control in buildings. The phase-change material packaged by the melt spinning technology comprises a melt material and a mirabilite material, wherein the phase-change material is in a filament shape, and the melt material is coated on the outer side of the mirabilite material. The melt material is one or more of CPET, PBT and PTT. The mirabilite material is liquid mirabilite. The invention provides a mirabilite phase-change material which has long service life and does not generate phase stratification after long-time use.)

1. The phase-change material packaged by the melt spinning technology comprises a melt material and a mirabilite phase-change material, and is characterized in that the phase-change material is in a filament shape, and the melt material is coated on the outer side of the mirabilite material.

2. The phase change material encapsulated by melt spinning technology according to claim 1, wherein the melt material is one or more of CPET, PBT and PTT.

3. The phase-change material encapsulated by the melt spinning technology according to claim 1, wherein the mirabilite material is a liquid mirabilite phase-change material, and the liquid mirabilite phase-change material is obtained by heating and dissolving the mirabilite material for 10-20 minutes at a temperature controlled at 40-80 ℃.

4. The utility model provides a manufacturing equipment of phase change material, includes the frame, sets up the first hopper in the frame, the propeller that links to each other with first hopper, the first needle tubing that links to each other with the propeller, be provided with first measuring pump between first needle tubing and the propeller exit end, still include the second hopper, the extruder that links to each other with the second hopper, the extruder links to each other with the second needle tubing, be provided with the second measuring pump on the pipeline that extruder and second needle tubing link to each other, first needle tubing in the second needle tubing, first needle tubing and the coaxial setting of second needle tubing.

5. The apparatus for manufacturing a phase change material according to claim 4, wherein the pusher is covered with a heating means, the heating temperature of the heating means is controlled to 40 to 80 ℃, and the extruder is provided with a heating means for heating the melt material to a molten state.

6. The apparatus for manufacturing a phase change material according to claim 4, wherein a melt receiving portion is provided between an upper portion of the second needle tube and the second metering pump, the melt receiving portion includes a first cylindrical cavity with an enlarged diameter, a first conical cavity coaxially disposed with the first cylindrical cavity, a second needle tube is provided on a top portion of the first conical cavity, and a cylindrical phase change material receiving cavity is provided between the first metering pump and the first needle tube, the cylindrical phase change material receiving cavity is coaxially disposed with and located inside the first cylindrical cavity and the first conical cavity.

7. The apparatus for manufacturing a phase change material as claimed in claim 6, wherein a temperature adjusting fan is provided outside said melt receiving portion.

8. The apparatus for manufacturing a phase change material as claimed in claim 6, wherein said melt receiving portion is externally covered with a cooling means.

9. The apparatus for manufacturing a phase change material as claimed in claim 8, wherein a collecting plate is disposed below the first needle cannula, the collecting plate includes a slide rail disposed on the frame, a slide plate fixed to the slide rail via a slide block, the slide plate is connected to a driving cylinder, and the driving cylinder drives the collecting plate to reciprocate.

Technical Field

The invention relates to the field of phase change energy storage materials, in particular to the field of temperature control and phase change energy storage or the field of temperature regulation and control in buildings.

Background

The phase change energy storage is to utilize a phase change material to absorb or release heat in the phase change process, so as to realize the storage of the heat and the adjustment of the temperature. The heat storage capacity of a phase change material is the energy absorbed or released from the phase change of the material itself at approximately constant temperature. Compared with a sensible heat storage material, the phase-change material has high energy storage density, can absorb or release a large amount of latent heat under a constant temperature condition, and is approximately constant when storing sensible heat, namely, the temperature change of the material is small. Meanwhile, the phase-change material also has the advantages of proper phase-change temperature, small volume, obvious energy-saving effect, easy control and the like. However, the phase-change energy storage material has reduced service life due to the fact that the phase-change energy storage material is over-cooled, layered and low in heat conductivity coefficient, and cannot be popularized and applied, so that the preparation of the high-performance phase-change energy storage material is particularly important. According to the change of phase change form, the phase change material can be classified into solid-liquid, solid-solid and composite shape-stabilized phase change material. Based on the difference of phase transition temperature, the materials can be divided into high, medium and low temperature. The high-temperature material is generally in the range of 250-1000 ℃, mainly comprises high-temperature molten salt, mixed salt, metal, alloy and the like, and is usually used in some high-temperature special environments. Common medium and low temperature materials are generally in the range of 20-200 ℃, contain inorganic salt, high polymers, metal materials, organic matters and the like, are mainly used for solar energy storage, waste heat recovery, heating, air conditioning systems and the like, are widely applied and have great market potential. At present, the most studied solid-liquid phase change energy storage materials mainly include three types, namely inorganic phase change energy storage materials, organic phase change energy storage materials and composite phase change energy storage materials. Inorganic phase change energy storage materials include crystalline hydrated salts, metals or alloys, molten salts, and other inorganic substances. The inorganic hydrated salt has the characteristics of fixed melting point, larger heat of fusion, large heat conductivity coefficient, large heat storage density per unit volume, lower price and the like compared with organic materials, is the most common and widely used inorganic phase change material. The crystalline hydrated salt can be used as a medium-temperature and low-temperature phase change energy storage material in general, has a wide melting point range, wherein the temperature range is below 100 ℃, and is a type which is widely applied in the current medium-temperature phase change material. However, the material has high corrosiveness, and supercooling and phase separation phenomena are often generated in the phase change process. The supercooling phenomenon easily causes the phase change material not to be subjected to phase change in time, so that the release and the use of heat are influenced; the phase separation phenomenon may cause the substances to dissolve unevenly, resulting in a decrease in the heat storage efficiency of the material. Typically by doping with nucleating agents; a thin layer structure for a container containing PCM; a thickening agent is added to increase the viscosity of the solution; stirring, etc. to prevent supercooling and phase separation.

Disclosure of Invention

The invention provides a phase-change material product which has long service life of mirabilite accompanied material and does not generate phase layering phenomenon after long-time use, and in order to realize the purpose, the invention adopts the following technical scheme:

the phase-change material packaged by the melt spinning technology comprises a melt material and a mirabilite material, and is characterized in that the phase-change material is in a filament shape, and the melt material is coated on the outer side of the mirabilite material.

Preferably, the melt material is one or more of CPET, PBT and PTT.

Preferably, the mirabilite material is liquid mirabilite, and the liquid mirabilite can be obtained by heating and dissolving the mirabilite material for 10-20 minutes at the temperature of 40-80 ℃.

The utility model provides a manufacturing equipment of phase change material, includes the frame, sets up the first hopper in the frame, the propeller that links to each other with first hopper, the first needle tubing that links to each other with the propeller, be provided with first measuring pump between first needle tubing and the propeller exit end, still include the second hopper, the extruder that links to each other with the second hopper, the extruder links to each other with the second needle tubing, be provided with the second measuring pump on the pipeline that extruder and second needle tubing link to each other, first needle tubing in the second needle tubing, first needle tubing and the coaxial setting of second needle tubing.

Preferably, the propeller is coated with a heating device, the heating temperature of the heating device is controlled to be 40-80 ℃, and the extruder is provided with the heating device to heat the melt material into a molten state.

Preferably, a melt containing part is arranged between the upper part of the second needle tube and the second metering pump, the melt containing part comprises a first cylindrical cavity with the diameter increased, a first conical cavity arranged coaxially with the first cylindrical cavity, the top of the first conical cavity is provided with the second needle tube, the melt containing part further comprises a cylindrical phase change material containing cavity arranged between the first metering pump and the first needle tube, and the conical phase change material containing cavity is coaxially arranged with the first cylindrical cavity and the first conical cavity and is positioned inside the first cylindrical cavity and the first conical cavity.

Preferably, a temperature adjusting fan is arranged outside the melt containing part.

Preferably, the melt receiving part is externally covered with a cooling device.

Preferably, a collecting plate is arranged below the first needle tube and comprises a sliding rail arranged on the rack, and a sliding plate fixed to the sliding rail through a sliding block and connected with a driving cylinder, and the driving cylinder drives the collecting plate to reciprocate.

Preferably, the first metering pump is stopped or slowed down at intervals to ensure that the liquid mirabilite is distributed in sections in the line body, and the melt material separates the liquid mirabilite.

A further preferred solution may also be: and a wire clamp device is arranged below the second needle tube, and the wire body is clamped and leveled once every period of time. The wire clamp device comprises two clamping plates and a driving device for driving the clamping plates to open and close.

The technical scheme provided by the invention utilizes a melting spinning technology to melt a mirabilite material into a liquid state, the outer side of the mirabilite material is coated with a high polymer material through the melting spinning technology, then the finished product is manufactured, the final product is collected by a collecting plate, and different shapes can be manufactured according to different actions of the collecting plate. The mirabilite phase-change material provided by the invention has long service life, and can not generate supercooling phenomenon or phase separation phenomenon after being used for a long time.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained below with reference to the accompanying drawings.

The invention provides a mirabilite-based phase-change material which has long service life and does not generate phase layering phenomenon after long-time use, and the invention adopts the following technical scheme to achieve the aim:

the phase-change material packaged by the melt-spinning technology comprises a melt material and a mirabilite material, and is characterized in that the phase-change material is in a filament shape, and the melt material is coated on the outer side of the mirabilite material. The melt material is one or more of CPET, PBT and PTT. The mirabilite material is liquid mirabilite, and the mirabilite material is heated and dissolved for 10-20 minutes, and the temperature is controlled at 40-80 ℃, so that the liquid mirabilite can be obtained.

The utility model provides a manufacturing equipment of phase change material, includes the frame, sets up first hopper 1 in the frame, propeller 2 continuous with first hopper 1, first syringe 3 continuous with propeller 2, be provided with first measuring pump 4 between 2 exit ends of first syringe 3 and propeller, still include second hopper 5, the extruder 6 continuous with second hopper 5, extruder 6 links to each other with second syringe 7, be provided with second measuring pump 8 on the pipeline that extruder 6 and second syringe 7 link to each other, first syringe 3 overlap in second syringe 7, first syringe 3 sets up with second syringe 7 is coaxial.

Preferably, the propeller 2 is covered with a heating device, the heating temperature of the heating device is controlled to be 40-80 ℃, and the extruder 6 is provided with a heating device to heat the melt material into a molten state.

Be provided with fuse-element portion of holding 10 between second needle tubing upper portion and the second measuring pump, fuse-element portion of holding 10 includes the first cylinder chamber that the diameter increases, with the coaxial first cone chamber that sets up in first cylinder chamber, first cone chamber top is provided with second needle tubing 7, still holds chamber 9 including the conical phase change material that sets up between first measuring pump 4 and first needle tubing 3, cylindrical phase change material holds the chamber and first cylinder chamber, the coaxial setting in first cone chamber and is located first cylinder chamber, the first cone intracavity portion.

And a temperature adjusting fan is arranged outside the melt containing part 10.

In another technical solution adopted by the present invention, a cooling device is wrapped outside the melt receiving portion 10.

The collecting plate 11 is arranged below the first needle tube 3, the collecting plate 11 comprises a sliding rail arranged on the rack, and a sliding plate fixed with the sliding rail through a sliding block, the sliding plate is connected with a driving cylinder, and the driving cylinder drives the collecting plate 11 to do reciprocating motion.

According to the technical scheme, the flow rate of the molten material is respectively regulated by the first metering pump and the second metering pump. The diameter of the phase-change material wire body obtained after processing is within the range of 2 micrometers to 5 mm.