CN209371362U - A kind of water heat-storage electric heater - Google Patents
A kind of water heat-storage electric heater Download PDFInfo
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- CN209371362U CN209371362U CN201920004088.2U CN201920004088U CN209371362U CN 209371362 U CN209371362 U CN 209371362U CN 201920004088 U CN201920004088 U CN 201920004088U CN 209371362 U CN209371362 U CN 209371362U
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Abstract
The utility model relates to a kind of water heat-storage electric heater, including shell, shell is divided into top part shell body and lower partial shell；Thermal insulation material, water heat storage are equipped in top part shell body, thermal insulation material is close to inner walls, and the water heat storage medium of filling specific quantity in water heat storage is interior to be equipped with electric heating tube；Circulating fan, electrically-controlled component are equipped in lower partial shell；Electric heating tube, circulating fan are all connect with the electrically-controlled component；Upper part of the housing and/or upper side have hot wind air outlet grate, and there are cold wind air-inlet grille in bottom and/or side.The air outlet grate be by the cold wind in air duct through water heat storage heating after, exterior space is sent by air outlet grate.To reduce, heating cost and balancing power network load, small product size is small, easy for installation, environmental protection is easy to operate, maintenance cost is low, low cost the utility model has the advantages that carrying out heat supply using trough-electricity for the utility model.
Description
Technical field
The utility model relates to a kind of room type heating plants, more particularly, to a kind of water heat-storage electric heater.
Background technique
Civil buildings are divided into industry and commerce building heating system:
Large centralised heat supply heating: using the heat source of steam power plant or other large-scale heating plants for large area building heat supplying,
Its area of heat-supply service is tens of thousands of square metres to tens million of square metres, such as: steam power plant's heat supply or large-scale coal-fired or gas fired-boiler heat supply
Heating system；
Distributed centralization heat supply heating: utilizing construction area heat supply of the medium-sized heat source station to medium area of heat-supply service,
Area of heat-supply service is about 10,000 square metres to 1,000,000 square metres or so construction areas；Such as: source center is installed on using a set of
Electric heat storage equipment and related pipe network, valve, water pump, heat exchange equipment etc. to this relatively large construction area heat supply.
Distributing heat supply heating: it is concentrated using small-sized heat source center or equipment to tens of square meters to 10,000 square metres
The construction area heat supply of left and right.Such as using a set of heat-pump apparatus and associated pipe, valve, instrument etc. to this small building area
Domain heat supply.
Single household heating heating: for each household, other configures a set of heating equipment, is that each of which room mentions by indoor pipeline
Heating load heating, such as: utilize a set of household gas heater of water for heating and associated pipe to each room heat supply of one family
Room type heating: one or more sets completely self-contained heating equipments are provided for each room, this kind of equipment is mainly wrapped
It includes: accumulated electric heater, electric warm-air machine, electric heating installation using oil as medium, heating cable, Electric radiant Heating Film ... etc..
Big city, main heating system is first 3 kinds, and in other regions, then mainly two kinds of heat-supplying modes below.
To protect environment, country is wideling popularize " cleaning heating ", especially northern area outskirts of a town, rural resident scattered burning
The transformation of coal heat supply is the key points and difficulties of work.Foregoing various room type heating equipments are mainly exactly to solve these
" cleaning heating " problem in area.
Accumulated electric heater is compared with other several room type heating installations, comprising: heating advantage at low cost is (because make
It is heated with the lower trough-electricity of price, and other electric heaters are then needed using ordinary telegram, wind-powered electricity generation), so, the coal in current rural area changes
Cleaning in heat supply work becomes one of primary solutions.Current this accumulated electric heater is mainly " solid heat storage formula electric heating
Device ", although and use high temperature phase change material (pcm) electric heater be described on the market, not yet become mainstream, even without entrance
Using reason is mainly: high-temperature phase-change medium acquisition difficulty is big, cost is high.And the technical solution of low temperature phase change accumulation of heat is also city
The technology being described in, but be not also widely used or do not apply, the reason is that: thermal storage density is lower, leads to product body
Product is larger, and cost is also high, it is therefore difficult to industrialization.
Currently, " solid heat storage " the formula electric heater being widely used has been widely used, it is mainly characterized by: accumulation of heat
Temperature is higher, and therefore, the amount of stored heat of unit volume heat storage medium is big, to be conducive to reduce the volume of electric heater product.Then
This kind of electric heater still has the following deficiencies place:
Firstly, temperature is higher, then institute although regenerator temperature height is conducive to reduce the advantage of accumulating product volume
Need shell thermal insulation material thicker, to avoid occurring scalding and avoiding causing exotherm rate is too fast to show because heat preservation is bad
As this increases the total volume of product again in turn, while also increasing the cost (material cost and time cost) of equipment.
Second, dielectric material is unsustainable, because the magnesium mineral resources for manufacturing this solid heat storage material (magnesia brick) are limited,
It is the resource by state control, this, which results in material price, continuous upward trend, or even finally cannot get this material；Such as
Fruit uses other alternative materials instead, other rough sledding such as big, performance decline that it will cause volumes.
Third, the manufacture of molding heat storage medium " gitter brick " more demanding technology content and cost, also results in equipment
It is at high cost.
4th, there is performance degradation in heat storage medium: accumulation of heat or exotherm rate can increase with heat release number is stored and
It continues to decline, this just reduces the service performance of equipment, service life.
Utility model content
The utility model provides a kind of water heat-storage electric heater, and solving resource present in current accumulated electric heater can not
Persistently, the problems such as regenerator temperature is excessively high, at high cost, small product size is big.Its technical solution is described in detail below:
A kind of water heat-storage electric heater, including shell, shell are divided into top part shell body and lower partial shell；In top part shell body
Equipped with thermal insulation material, water heat storage, thermal insulation material is close to inner walls, the water heat storage medium of filling specific quantity in water heat storage,
Electric heating tube is equipped in component；Circulating fan, electrically-controlled component are equipped in lower partial shell；Electric heating tube, circulating fan all with institute
State electrically-controlled component connection；Upper part of the housing and/or upper side have hot wind air outlet grate, and bottom and/or side have cold wind to enter the wind lattice
Grid.
For products configuration air circulation fans (axial flow blower or centrifugal blower), blower is using speed regulating control or uses PWM
Control.Using this control mode, the mode controlled with current solid heat accumulation electric heater only with manual air door, there have to be good as follows
Place:
1) high degree of automation, in operational process, the artificial process for participating in control is greatly lowered；
2) small product size is smaller (manually adjust throttle setting and occupy relatively large space)；
3) temperature control precision is high, avoids the disadvantage that heat release initial stage thermal discharge is excessive, heat release later period thermal discharge is small, favorably
In preventing heat release initial stage excessive exothermic, therefore it is beneficial to energy conservation.
It is the partition with flow-equalizing ventilation hole between top part shell body and lower partial shell.
Water heat storage upper end is equipped with safety valve, rupture disk, and the maximum working pressure (MWP) of safety valve is not higher than 1.1MPa, institute
The burst pressure of rupture disk is stated not higher than 1.2MPa.The safety valve is a kind of safety guard, and opening and closing element is made by gravity
It is in normally off with lower, when the intracorporal pressure medium of accumulation of heat, which increases, is more than specified value, opening and closing element is opened, and to system outlet
Medium is put to prevent in heat storage pressure be more than specified value；The rupture disk is a kind of pressure relief device, in certain temperature
Under degree, because two sides pressure difference reaches the limit values strength failure or unstability occur for rupture disk, are broken or come off rapidly, release to be formed
Simultaneously medium is discharged in mouth, so that heat storage be made to avoid the occurrence of superpressure deformation, guarantees heat storage body structure safety；This safety
Valve, rupture disk are also similar to that the safety valve installed on household electric pressure boiler, rupture disk, have the characteristics that it is simple, safe and reliable,
Play the role of dual security protection.
Since product will be operate in " band pressure condition ", to guarantee safety, pressure control and pressure protection are installed on product
Device, specific implementation method are as follows:
1) temperature switch is installed, the temperature switch is installed in electrically-controlled component, sends water temperature to temperature by electric heating tube
Degree switch stops electric heater work when water temperature overdetermination design temperature, and this aspect plays the role of using electricity wisely,
On the other hand the risk caused by preventing temperature from increasing.
2) pressure safety valve, rupture disk are installed, component is simple, reliable, carries out dual security protection to heat storage.
The water heat storage is steel hollow component, is divided into monomer structure and/or multiple hull construction, and the steel of multiple hull construction is empty
Center portion part is connected using communicating pipe, forms a multiple hull construction component, the component pre- indwelling air duct in anabolic process.
Product structure is less than the component mode (pipe of 150mm using the nominal diameter of more tubular structures parallel connections and pipe
Shape can be round tube, elliptical tube, square tube etc.), and tubing use narrow tube, bring following benefit in this way:
1) manufacture in procuratorial organ face can be supervised to avoid pressure vessel and operation cost (when actual design manufactures, still executes pressure
Container relevant criterion).
2) it is easy to use standardized tubing, the cost of material is low, manufacturing cost is low.
3) it is easy design, is manufactured as the appearance for being similar to traditional radiator, this is advantageous for user and quickly receives the production
Product.
The electrically-controlled component be equipped with power-on switch and with its temperature control equipment being connected respectively, time-controlling arrangement,
Fan controller, the temperature control equipment, time-controlling arrangement are connected with electric heating tube, the fan controller with
Circulating fan is connected.Circulating fan, each control device are installed on the lower part of entire product, it is made to be in room temperature ring always
In border, so as to farthest avoid the influence of water heat accumulation apparatus high temperature, and the heat preservation demand to the two devices is reduced.
For products configuration intelligent controller, product is comprehensively controlled and protected, specific control function includes but not
It is limited to:
1) water temperature controls: configuration water temperature switch stops electric heater work when water temperature reaches design temperature
Make, on the one hand can reduce electricity consumption, on the other hand also functions to safeguard protection effect.
2) room temperature control: configuration room air temperature sensor works as space air for perceiving room air temperature
When temperature reaches setting.
3) timing controlled: the working time of electric heater can be set using the computer controller, electric heater is made only to exist
The lower period operation of electricity price.
4) blower tune air control system: the revolving speed of blower is controlled according to the signal of room air temperature sensor, works as room temperature
When higher, rotation speed of fan is reduced, to reduce air quantity, and then reduces the rate of release of heat；Conversely, then accelerating heat release speed
Degree.The final accurate control for realizing room temperature, promotes room air temperature comfort level.
The thermal insulation material is high temperature resistant type, 10~30mm of thickness；It is tightly attached to wall in the top part shell body of the shell.
The electrically-controlled component is furnished with remote controler.
2~5mm of wall thickness of the steel hollow component；Steel hollow component is away from 30~100mm of shell.
Air duct 30~100mm of width.
The water heat storage medium of specific quantity is filled in the water heat storage, the maximum temperature of water heat storage medium can reach 180
℃。
Heat storage medium uses high-temperature water, to utilize the high specific heat capacity characteristic of water, to be conducive to reduce the body of heat-storage electric heater
Product；It can significantly be dropped compared with traditional use solid heat storage medium, phase-change heat accumulation medium using water as heat storage medium
Low cost.
The operating temperature of water heat storage medium, in this temperature range, can there is the technology of optimization between 130~180 DEG C
Economic performance.Especially under two design temperatures wherein, there is superior technique economic performance, first design accumulation of heat temperature
Degree is, close to the temperature of 0.6MPa design pressure, such as 158 DEG C, it is to set close to 1.0MPa that second design, which stores temperature,
The temperature of pressure is counted, such as: 179 DEG C.Under the two design temperatures, have close to best optimisation technique economic performance, because
For the material that standardization, mass production can be used, this is advantageous for reducing cost and guarantees quality, reliability, safety.
If temperature is reduced between 100 to about 130 DEG C, the cost of final products may be lower, but the volume of product is bigger than normal, is not
The selection of optimization.Regenerator temperature is although can be more than 180 DEG C, such as accumulation of heat is to 200 DEG C, but design pressure promotion is arrived
1.6MPa, relative to 179 DEG C or so of design, regenerator temperature improves only 20 DEG C (heat storage capacity promotes 14% or so), design
Pressure but improves 60%, this also will increase the expense of other aspects simultaneously.
Since regenerator temperature only has 130 DEG C~180 DEG C, the regenerator temperature with 500~700 DEG C or so of solid heat storage mode
It compares, since temperature is greatly lowered, the investment of heat preserving and insulating material can be with sharp fall；The peace of required thermal insulation material
Filling space, also degree lower greatly is reduced.The total volume of product is finally set to be less than solid heat storage mode.
Further, heating device is using the tubulose electric heater unit recycled.
In use, the air in room is introduced from the air-inlet grille for being located at lower part, by the air installed between top, lower part
It is then lower to be flowed out positioned at the air outlet grate hole of top position along the space between each heat accumulation pipe to upper flow after uniform flow orifice.
When air flows through the space between heat accumulation pipe, by accumulation of heat Water pipe heating, so that the heat inside accumulation of heat water pipe be made to be discharged into room
Inside, the control by controller and blower to air circulation stablize the temperature of space air in required range.
Air outlet grate air outlet grate
Water heat-storage electric heater provided by the utility model is powered at electricity price lower period (generally electric power low-valley interval) and supplies
While hot by thermal energy storage among water heat storage, powered off when electricity price higher (the generally flat section of electric load, crest segment) at peak,
And release thermal energy, to exterior space sustained release heat, in this way, the reduction of heating operation expense can be made.
Detailed description of the invention
Fig. 1 is the water heat-storage electric heater device diagrammatic cross-section of the utility model；
Fig. 2 is the exterior sideview figure of the water heat-storage electric heater of the utility model；
Fig. 3 is the air-flow flow diagram of the water heat-storage electric heater of the utility model.
Figure label: 1- shell；2- thermal insulation material；3- water heat storage；4- rupture disk；5- hot wind air outlet grate；6- safety
Valve；7- communicating pipe；The air duct 8-；9- electric heating tube；10- circulating fan；11- cold wind air-inlet grille；12- electrically-controlled component；13- every
Plate.
Specific embodiment
Specifically describe the preferred embodiment of the utility model with reference to the accompanying drawing, wherein attached drawing constitutes the application one
Point, and be used to illustrate the principles of the present invention together with the embodiments of the present invention.
The utility model discloses a kind of water heat-storage electric heaters, as shown in Figure 1, including shell 1, thermal insulation material 2, water accumulation of heat
Body 3, rupture disk 4, hot wind air outlet grate 5, safety valve 6, electric heating tube 9, circulating fan 10, cold wind air-inlet grille 11, automatically controlled group
Part 12.As shown in Fig. 2, the top of shell 1 and/or upper side have a hot wind air outlet grate 5, bottom and/or side have cold wind into
Style grid 11.
The shell 1 of water heat-storage electric heater is rectangular parallelepiped structure, is divide into upper part and lower part, for circulating between two parts
Water heat-storage electric heater has been carried out function division by the partition 13 of air holes.
Be equipped with circulating fan 10, cold wind air-inlet grille 11, electrically-controlled component 12 in lower partial shell, circulating fan 10 with it is described
Electrically-controlled component 12 connects；Electrically-controlled component 12 is equipped with power-on switch, temperature control equipment, time-controlling arrangement, fan controller；
Electrically-controlled component 12 is furnished with remote controler.Circulating fan is equipped at cold wind air-inlet grille, circulating fan 10 is by cold wind from air-inlet grille 11
Sucking, and be sent into air duct 8.When realizing forced convertion heat dissipation by using blower, radiator structure can be made to simplify, to drop
The cost of low product.
Thermal insulation material 2, water heat storage 3, rupture disk 4, hot wind air outlet grate 5, safety valve 6, electricity are equipped in top part shell body
Inner wall is divided in heat-generating pipe 9, the upper part of the housing that thermal insulation material 2 is close to shell 1, guarantees heat insulation effect, reduces thermal loss, thermal insulation material
For high temperature resistant type, 10~30mm of thickness, main purpose is to avoid the uncontrolled release of heat, while avoiding hull outside temperature excessively high
And cause scald risk.
The component upper ends installation safety valve and rupture disk of the water heat storage, are lauched heat storage to avoid abnormal conditions and bear
Excess pressure and cause risk.The installation position selection of the rupture disk is in the position that shell can protect, in abnormal cases,
If protection act occur in safety valve or rupture disk, the steam released will not directly reach personnel in room and can reach
Region.
Water heat storage 3 is steel hollow component, is installed on middle position in top part shell body, steel hollow component is away from shell
30~100mm is arranged supporting element on steel hollow component, certain distance is kept while supporing shell, and as air duct 8
A part；The steel hollow component is divided into single component and two kinds of more body components, and single component is single steel hollow component,
Component is arranged supporting element on component, certain distance is kept while supporing shell, and as air duct away from 30~100mm of shell
8；The steel hollow component of multiple hull construction is connected using communicating pipe 7, forms a multiple hull construction component, between multiple hull construction component
Equipped with air duct 8, the sectional dimension in air duct is depending on electric heater amount of capacity.In the present embodiment, water heat storage is binary steel
Hollow component processed, binary component are connected using connecting tube 7.
The water heat storage medium of filling specific quantity in component, is equipped with electric heating tube 9 in component, the power supply line of electric heating tube 9 and
Temperature control line is connect with the electrically-controlled component 12, and when work, the maximum temperature of water can reach 180 DEG C.3 component upper ends of water heat storage
Rupture disk 4, the safety valve 6 of installation are safety device；Hot wind air outlet grate 5 is to heat by the cold wind in air duct 8 through water heat storage 3
Afterwards, exterior space is sent by hot wind air outlet grate 5.
The utility model is as shown in Figure 3 when in use:
At electricity price lower period (generally electric power low-valley interval), the mode playback when storing is opened by electrically-controlled component 12, this
When, electric heating tube 9 is powered on, and is heated to the water at low temperature in water heat storage 3, the water at low temperature in water heat storage 3
When being heated to set temperature, electric heating tube 9 stops working.While accumulation of heat, signal that circulating fan 10 passes through room temperature
Work is controlled by electronic controller, when room temperature is lower than set temperature, circulating fan 10 increases revolving speed, by cold wind from air inlet
Grid 11 sucks, and is sent into air duct 8, by the cold wind in air duct 8 after the heating of water heat storage 3, is sent by hot wind air outlet grate 5
Enter interior；When room temperature is higher than set temperature, circulating fan 10 reduces revolving speed, keeps indoor and is in comfort temperature section
It is interior.
In electricity price higher period (generally power surges period), Heat release mode is opened by electrically-controlled component 12, at this point, electric
Heat-generating pipe 9 stops working；Circulating fan 10 carries out control work by electronic controller by the signal of room temperature, works as Indoor Temperature
When degree is lower than set temperature, circulating fan 10 increases revolving speed, and cold wind is sucked from air-inlet grille 11, and is sent into air duct 8, passes through
The cold wind in air duct 8 is sent into interior by hot wind air outlet grate 5 after the heating of water heat storage 3；When room temperature is higher than set temperature
When, circulating fan 10 reduces revolving speed, keeps indoor in preference temperature section.
Wherein two kinds of operating modes that this equipment has, when storing, mode playback and Heat release mode are as described below:
The mode playback when storing: work also discharges heat to room while accumulation of heat in electric load low-valley interval, and electricity adds
Hot device and circulating fan can work at the same time.By appropriately configured electrical heating power and water capacity, the equipment can be made when storing
Under mode playback, that is, heat needed for guaranteeing room, while the temperature of water can also be increased to control temperature (130 to 180 DEG C).?
In the period, electric heater works by the target water temperature of setting, it may be assumed that when temperature reaches the set water temperature upper limit, stops work
Make, restarts work when being reduced to set water temperature lower limit.
Heat release mode: electric heater stops working (heating), and only circulating fan works.Heat release mode generally operates in non-electrical
The power low ebb period.
Further, in electronic controller, the operation beginning and ending time under two kinds of operating modes can be set, is realized automatic
Operation.It can also run manually if necessary, to adapt in some cases due in the improper situation of lectotype selection or other certain
Under special cases, need equipment in non-electricity low-valley interval requirements of one's work.
As it can be seen that water heat-storage electric heater provided by the utility model, by thermal energy storage while low ebb electricity price energization heat supply
Get up, powered off in peak electricity tariff, and thermal energy is released, continue heat supply to exterior space, saves operating cost, environmental protection section
Energy, easy to operate, maintenance cost is low.
The preferable specific embodiment of the above, only the utility model, but the protection scope of utility model not office
It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement should be covered within the scope of the utility model.
Claims (10)
1. a kind of water heat-storage electric heater, it is characterised in that: including shell (1), shell (1) is divided into top part shell body and lower part shell
Body；Thermal insulation material (2), water heat storage (3) are equipped in top part shell body, thermal insulation material (2) is close to shell (1) inner wall, water accumulation of heat
The water heat storage medium of filling specific quantity in body (3), it is interior to be equipped with electric heating tube (9)；Be equipped in lower partial shell circulating fan (10),
Electrically-controlled component (12)；Electric heating tube (9), circulating fan (10) are all connect with the electrically-controlled component (12)；Shell (1) top and/
Or upper side has hot wind air outlet grate (5), bottom and/or side have cold wind air-inlet grille (11).
2. water heat-storage electric heater according to claim 1, it is characterised in that: be between top part shell body and lower partial shell
Partition (13) with flow-equalizing ventilation hole.
3. water heat-storage electric heater according to claim 1, it is characterised in that: water heat storage (3) upper end is equipped with rupture disk
(4), the maximum working pressure (MWP) of safety valve (6), safety valve (6) is not higher than 1.1MPa, and the burst pressure of the rupture disk (4) is not high
In 1.2MPa.
4. water heat-storage electric heater according to claim 1, it is characterised in that: the water heat storage (3) is steel hollow portion
Part is divided into monomer structure and/or multiple hull construction, and the steel hollow component of multiple hull construction is connected using communicating pipe (7), forms one
Multiple hull construction component, the component pre- indwelling air duct (8) in anabolic process.
5. water heat-storage electric heater according to claim 1, it is characterised in that: the electrically-controlled component (12) is equipped with power-on switch
With with its temperature control equipment being connected, time-controlling arrangement, fan controller respectively, the temperature control equipment, when
Between control device be connected with electric heating tube (9), the fan controller is connected with circulating fan (10).
6. water heat-storage electric heater according to claim 1, it is characterised in that: the thermal insulation material (2) is high temperature resistant type, thick
Spend 10~30mm；It is tightly attached to wall in the top part shell body of the shell (1).
7. water heat-storage electric heater according to claim 1, it is characterised in that: the electrically-controlled component (12) is furnished with remote controler.
8. water heat-storage electric heater according to claim 4, it is characterised in that: the wall thickness 2 of the steel hollow component~
5mm；Steel hollow component is away from (1) 30~100mm of shell.
9. water heat-storage electric heater according to claim 1, it is characterised in that: air duct (8) 30~100mm of width.
10. water heat-storage electric heater according to claim 1, it is characterised in that: be filled in the water heat storage (3) specific
The water heat storage medium of amount, the maximum temperature of water heat storage medium can reach 180 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920004088.2U CN209371362U (en) | 2019-01-02 | 2019-01-02 | A kind of water heat-storage electric heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920004088.2U CN209371362U (en) | 2019-01-02 | 2019-01-02 | A kind of water heat-storage electric heater |
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| Publication Number | Publication Date |
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| CN209371362U true CN209371362U (en) | 2019-09-10 |
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ID=67829029
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539360A (en) * | 2019-01-02 | 2019-03-29 | 北京瑞特爱能源科技股份有限公司 | A kind of water heat-storage electric heater |
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2019
- 2019-01-02 CN CN201920004088.2U patent/CN209371362U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539360A (en) * | 2019-01-02 | 2019-03-29 | 北京瑞特爱能源科技股份有限公司 | A kind of water heat-storage electric heater |
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