CN208333204U - Salt plug for phase-transition heat-storage heating heat exchange box - Google Patents

Abstract

Salt plug for phase-transition heat-storage heating heat exchange box, the salt plug includes columnar hollow core, the extending radially outwardly for outer lateral edge hollow core of columnar hollow core has multiple Heat Rooms, the multiple Heat Room is hollow rectangular cylinder, along the outer diameter equidistant arrangement of hollow core, the inner cavity of the hollow inner cavity of multiple Heat Rooms and hollow core is connected multiple Heat Rooms.The utility model provides one kind for phase-transition heat-storage heating heat exchange box salt plug, and heat exchange area is big, and it is uniform to exchange heat, it can be used for the salt plug of small-sized heat exchange box substitution existing structure, heat exchange efficiency can be improved, reduce the cycle-index of heat-exchanging water, reduce the energy consumption of heating.

Description

Salt plug for phase-transition heat-storage heating heat exchange box

Technical field

The utility model relates to a kind of salt plug, especially a kind of salt plug for phase-transition heat-storage heating heat exchange box belongs to confession Heating equipment technical field.

Background technique

Phase-transition heat-storage heating is to utilize material when phase solid-liquid or liquid-gas change, and can absorb or release a large amount of latent heat Feature and the heat storage carried out or release, compared to traditional alternating temperature heat accumulation process, the temperature of material is several in phase transition process Remain unchanged, can be utilized in energy abundance in heating engineering in low-temperature phase-change material the heat storage in hot water is existed In phase-change material, heat supply is carried out using the phase transformation heat release of phase-change material in energy shortages, is widely used in paddy at present For hankering, i.e. paddy electricity is stored in phase-change material by night for electricity storage, and daytime is used in the heat accumulating type heat supplying process of heating.At present The basic composition of common paddy electricity phase-transition heat-storage heating includes reflux pump, electrically heated boiler, heat exchange box, heating heat exchanger fin and control Device, heat exchange box is interior to be arranged salt plug, and salt plug is interior filled with phase change heat storage material, and night use paddy electricity is added water by electrically heated boiler Heat exchange box circulation is passed through after heat, phase change heat storage material is by solid-state after heat exchange the temperature inside the box reaches the phase transition temperature of phase change heat storage material Mutually become liquid, absorb heat therebetween, then stop electric heating daytime, is exchanged heat using the heat stored in phase change heat storage material Water in case heats.Wherein heat exchange box is the core component in phase-transition heat-storage heating system, and heat exchange box includes cabinet and inserts More internal salt plugs are located at, currently used salt plug is cylindrical salt plug, it is filled in salt plug and sets phase change heat storage material, salt top end By end cap seal.An important ring is exactly with phase-change material come heat accumulation in phase-transition heat-storage heating technology, although phase-change material itself It is big with storage density, and the above-mentioned advantage such as thermal energy storage process approximation isothermal, but the pyroconductivity of this kind of material is but very low, tradition The salt plug of cylindrical structure this defect is considered insufficient, hot water first exchanges heat with the phase-change material of salt plug outer layer, in salt plug The phase-change material of layer is not up to phase transition temperature toward contact, and a circulation has just been completed in heat-exchanging water, makes the heat exchange cycle of hot water Number increases, and the thermal losses in heat transfer process increases.Residence time in large-scale heat exchange box due to hot water is longer, has longer Heat-exchange time, make to influence caused by this problem it is smaller, but in small-sized heat exchange box, due to hot water residence time in the case Short, heat-exchange time is insufficient, uses the case where making the phase-change material on the inside of salt plug that cannot fill part heat supply when traditional salt plug table It is now more prominent.

Summary of the invention

The purpose of this utility model is that: to solve the above problem in the prior art, provide a kind of for phase-transition heat-storage The salt plug of heating heat exchange box, heat exchange area is big, and exchanges heat uniformly, can be used for the salt of small-sized heat exchange box substitution existing structure Heat exchange efficiency can be improved in column, reduces the cycle-index of heat-exchanging water, reduces the energy consumption of heating.

In order to achieve the above object, the technical solution adopted in the utility model are as follows: the salt for phase-transition heat-storage heating heat exchange box Column, the salt plug include columnar hollow core, and outer the extending radially outwardly for lateral edge hollow core of columnar hollow core has Multiple Heat Rooms, the multiple Heat Room be hollow rectangular cylinder, multiple Heat Rooms along hollow core outer diameter equidistant arrangement, The hollow inner cavity of multiple Heat Rooms and the inner cavity of hollow core are connected；Further, the internal diameter of the columnar hollow core Size is equal with the width dimensions of rectangular cylinder；Further, the filling room of phase-change material is provided at the top of the salt plug, it is described The filling room of phase-change material includes hollow cylindrical chamber body, and cylindrical chamber body top is provided with sealing cover, the filling room of phase-change material Cylindrical chamber intracoelomic cavity and the inner cavity of salt plug be connected.

The positive advantageous effects of the utility model are: by the way that columnar heat exchange is arranged on the outside of the core of salt plug Room, Heat Room are communicated with salt plug core, and heat exchange area increases after phase change heat storage material is filled in Heat Room and core, reduce heat Measure the path length conducted to the inside of salt plug, and by the way that set the width of the intracorporal diameter of core and Heat Room to unanimously can be with So that the overall heat exchange time of salt plug is tended to consistent, the width of core internal diameter and Heat Room can be set according to applying working condition so that its Meet working environment needs, the work effect of filling phase change heat storage material can be improved in the salt column top setting filling room of phase-change material Rate, and it is conducive to the sealing of top cover, prevent phase change heat storage material from leaking from top cover and salt plug connecting portion.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model one embodiment salt plug.

Fig. 2 is the schematic top plan view of the salt plug of the utility model one embodiment.

Specific embodiment

In order to more fully explain the implementation of the utility model, the embodiment of the utility model presented below, these realities Applying example is only the elaboration to the utility model, does not limit the scope of the utility model.

In the description of the present invention, it should be understood that the orientation of the instructions such as term " on ", "lower", "inner", "outside" Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.

It is attached in the figure, it is marked as 1. hollow cores in conjunction with attached drawing to the further details of explanation of the utility model；2. heat exchange Room；3. the filling room of phase-change material.

It is as shown in the figure: columnar hollow for the salt plug of phase-transition heat-storage heating heat exchange box, including columnar hollow core 1 Extending radially outwardly for the outer lateral edge hollow core of core has multiple Heat Rooms 2, and Heat Room is hollow rectangular cylinder, Duo Gehuan Hot cell is along the outer diameter equidistant arrangement of hollow core, and the inner cavity of the hollow inner cavity of multiple Heat Rooms and hollow core is connected, such as Fig. 2 Shown, the hollow core and Heat Room of salt plug constitute radial star structure, and the internal diameter ruler of columnar hollow core It is very little equal with the width dimensions of rectangular cylinder, the filling room 3 of phase-change material, the filling room of phase-change material are additionally provided at the top of salt plug Including hollow cylindrical chamber body, cylindrical chamber body top is provided with sealing cover, and sealing cover is being not shown in the figure, and phase-change material fills The top for filling room bottom and salt plug connects, and the inner cavity of the filling room of phase-change material and the inner cavity of salt plug are connected.Due to salt plug Cross section be star structure, be not easy to operate in actual operation when filling phase-change material, cylindrical phase-change material is filling Room can make filling work simple and efficient, and the marginal excess of star salt plug, if cover closure salt plug with star is first Processing technology complexity is covered, secondly too long connection side also increases the leakage probability at capping and salt column sealing, adds cylinder The filling room of shape phase-change material is it is possible to prevente effectively from both of these problems, and process is simple, high yield rate.

The utility model is communicated by the way that columnar Heat Room, Heat Room are arranged on the outside of the core of salt plug with salt plug core, It is filled with heat exchange area after phase change heat storage material in Heat Room and core to increase, reduces heat to the path length conducted inside salt plug Degree, and by being set as unanimously making the overall heat exchange time of salt plug to tend to the width of the intracorporal diameter of core and Heat Room Unanimously, the width of core internal diameter and Heat Room can be set according to applying working condition so that it meets working environment needs, in salt plug The working efficiency of filling phase change heat storage material can be improved in the top setting filling room of phase-change material, and is conducive to the sealing of top cover, Prevent phase change heat storage material from leaking from top cover and salt plug connecting portion.

After the embodiments of the present invention is described in detail, one of ordinary skilled in the art is clearly understood that, Various change and modification can be carried out by not departing under above-mentioned claim and spirit, all according to the technical essence of the utility model Any simple modification, equivalent change and modification to the above embodiments belong to the range of technical solutions of the utility model, And the utility model is also not only restricted to the embodiment of example in specification.

Claims (3)

1. the salt plug for phase-transition heat-storage heating heat exchange box, it is characterised in that: the salt plug includes columnar hollow core, column The extending radially outwardly for outer lateral edge hollow core of hollow core have multiple Heat Rooms, the multiple Heat Room is hollow square The inner cavity of shape cylinder, the hollow inner cavity of Heat Room and hollow core is connected.

2. it is according to claim 1 for phase-transition heat-storage heating heat exchange box salt plug, it is characterised in that: it is described it is columnar in The internal diameter of hollow body and the width dimensions of rectangular cylinder are equal.

3. the salt plug according to claim 1 for phase-transition heat-storage heating heat exchange box, it is characterised in that: the top of the salt plug Portion is provided with the filling room of phase-change material, and the filling room of phase-change material includes hollow cylindrical chamber body, cylindrical chamber body top It is provided with sealing cover, the cylindrical chamber intracoelomic cavity of the filling room of phase-change material and the inner cavity of salt plug are connected.