Heater for liquid heating
Technical field
This utility model relates to a kind of liquid heating, a kind of heater for liquid heating.
Background technology
Typically, in the heating electrical appliance needing to go out continuously hot water, by heating resistance wire by the parcel of insulating barrier or filling, it is embedded in the preferable cast aluminium of heat conductivity, stainless steel tube bending is formed continuous print flow channel for liquids simultaneously, be embedded in cast aluminium.
Because the heat that heating resistor produces can not directly and water carries out heat exchange need cast aluminium is first heated to uniform temperature, the heat on cast aluminium passes through stainless steel tube flow channel for liquids and the exchange of Aquatic product heat.Owing to the thermal inertia of aluminum is big, 1 can be there is problems in that, when start, need to wait longer second time 15 to 30S() preheating, cast aluminium could be heated to the temperature needed;If 2 in the case of going out hot water continuously, the heat that heating resistance wire produces can not catch up with the heat that liquid absorbs in time, and the temperature of cast aluminium can be caused to decline, if the water temperature needed can not decline, needs to continue waiting for heating;If 3 heaters be in standby in, needs control come constant cast aluminium temperature, cause the waste of the energy;4, with the cast aluminum heaters of this high thermal inertia, it is necessary to obtained the water of steady temperature by preheating, when continuous effluent, water temperature can not be constant.Because the inertia of high heat, the consecutive variations regulation of water temperature more can not be realized.The complex manufacturing of cast aluminium simultaneously, volume is big, Heavy Weight.
Based on above problem, some schemes are had to go to improve, as done plastic liquid runner in rustless steel thick film pipe, avoid the impact of thermal inertia, plastics have certain hardness, need to be inserted in rustless steel outer tube, it is possible to be easily inserted in stainless pipe, dimensional fits needs to reduce the external diameter of plastic liquid runner, it is impossible to realize tight fit.It is no problem to install, but the problem that sealing can be brought, cause water can not flow fully according to the flow direction of flow channel for liquids, some water total can be taken a shortcut at poorly sealed real gap, water stream channel is certain, inevitably result in a part of water not flow, become stagnant water, continuous heating in this place, ultimately result in gasification, generation steam sprays, water outlet is intermittent, simultaneously as the intermetallic sealing of plastic casing can only rely on sealing ring to seal, the requirement of storage pressure 8 to 10bar can not be realized, in normal pressure, it is likely to because speed or sealing ring occur aging at the environment life-time service of high temperature, the risk of leakage occurs.
At present, in purifier field, such as: traditional water purifier, being the most only provided with filtering area and equalizing section, during use, after water is first filtered, heated or cooling directly output is available for the water that user drinks;But, the water purifier of above-mentioned traditional structure, still suffer from following weak point: (1) is at different use environment, often affected by different inflow temperatures, there is notable difference in the leaving water temperature that user drinks, such as: winter and summer, and water is heated or freezes the identical time, but owing to inflow temperature is different, its leaving water temperature is clearly present difference;For this, also there is partially purifying water machine, for adapting to inflow temperature Different Effects, scalable heating or the regulatory function of cooling time length can be set, although this can meet user's requirement to leaving water temperature to a certain extent, but use to user and cause inconvenience, especially cannot meet the high-end user use needs to Quick water exit, therefore, how in purifier field, on the premise of not changing heating or cooling time, can guarantee that again leaving water temperature can meet user and drink requirement, this is always the technical barrier that industry is badly in need of solving.
Utility model content
The purpose of this utility model is the deficiency overcoming above-mentioned prior art to exist, and provides a kind of simple and reasonable for structure, and heats is good, service life length, the safe and reliable heater for liquid heating.
The purpose of this utility model is achieved in that
Heater for liquid heating, including sealed support, calandria, water inlet and outlet, sealing water channel it is provided with between sealed support and calandria, water inlet and outlet are distributed up and down, and connect with sealing water channel respectively, it is characterized in that, described calandria includes conducting-heat elements and heater block, conducting-heat elements inner surface contacts with sealing water channel, heater block is thick-film heating circuit, heater block is arranged on conducting-heat elements outer surface, and between water inlet and outlet in the altitude range of correspondence, and seal the surface area surface area more than thick-film heating circuit of water channel.
The purpose of this utility model can also use techniques below measure to solve:
As more specifically one scheme, described conducting-heat elements is body, and thick-film heating circuit is sintered in body periphery, and body inner circumferential is shiny surface, it is to avoid reduce heat transference efficiency because incrustation scale is formed.
Described thick-film heating circuit includes being sintered in the insulating bottom layer of conducting-heat elements outer surface, heat resistance layer and insulating outer layer successively, insulating bottom layer is additionally provided with and the power supply terminal of heat resistance layer conductive contact.
Described heat resistance layer is at least formed by one layer of resistance slurry sintering, it is provided with a plurality of from top to bottom, each bar heat resistance layer is parallel to each other, and is connected by conducting bridge between adjacent two heat resistance layers, and the heat resistance layer at upper and lower two ends is conductively connected with power supply terminal respectively.
The outside of described calandria is provided with temperature sensor and the temperature data acquisition electrode connected with temperature sensor.
Also include electric connector, electric connector includes connecting seat, forceful electric power contact and light current contact, connecting seat to be arranged on calandria, forceful electric power contact is arranged on light current contact on connection seat and contacts with the power supply terminal on calandria and temperature data acquisition electrodes conduct respectively;It is additionally provided with forceful electric power pin and light current pin, forceful electric power pin and light current pin on described connection seat to be conductively connected with forceful electric power contact and light current contact respectively.
Described conducting-heat elements is made up of foil, and its surface is provided with fixed mount, and connection seat is fixing with fixed mount and conducting-heat elements to be connected, and fixed mount is also electrically connected with grounding pin.
Described sealed support is the tubular structure of hollow, its periphery is cast with seal, sealant surface is provided with the sealed muscle of spiral formula structure, sealed muscle is tightly connected with conducting-heat elements inner surface, sealed muscle, seal and conducting-heat elements inner surface surround spiral sealing water channel jointly, and water inlet and outlet lay respectively at sealing water channel two ends.Entering after the liquid sealed in water channel can only flow through whole section of sealing water channel could flow out from outlet from water inlet, it is longer that it flows through path, is fully contacted with calandria, it is to avoid heat waste.
Described water inlet and outlet are arranged on sealed support surface.
Described sealed support two ends are provided with flanging, flanging and described conducting-heat elements end welded seal.By flanging, so that separated by a distance between sealed support and conducting-heat elements, seal is arranged in the position that sealed support is spaced apart with conducting-heat elements.
The beneficial effects of the utility model are as follows:
(1) for the heater of liquid heating, this kind of ensure that thick-film heating circuit heats just for sealing water channel, effectively prevent from carrying out heat exchange and too fast present of the temperature rise that occurs because thick-film heating circuit fails timely and heated liquid, improve the service life of thick-film heating circuit, and improve the safety that product uses;
(2) this kind of can reduce the start preheating waiting time for the heater of liquid heating, it is to avoid because the gap between flow channel for liquids and heater body, the string water problems brought causes gasification, and that brings goes out water vapour and discontinuous water outlet;
(3) this kind of can produce rapidly temperature water between 60 DEG C to 98 DEG C for heater of liquid heating, is applicable to electric coffee maker, espresso maker and beverage heater etc., meets coffee or beverage mouthfeel and the extraction of nutrition;
(4) this kind of is low for heater thermal inertia of liquid heating, can obtain the water of continuous-stable temperature or transformation temperature in initial and any time.
Accompanying drawing explanation
Fig. 1 is this utility model one embodiment decomposition texture schematic diagram.
Fig. 2 is structural representation after Fig. 1 assembles.
Fig. 3 is another angled arrangement schematic diagram of Fig. 2.
Fig. 4 is this utility model sectional structure schematic diagram.
Fig. 5 is structure for amplifying schematic diagram at A in Fig. 4.
Fig. 6 is another embodiment structural representation of sealed support.
Fig. 7 is that this utility model one uses status architecture schematic diagram.
Fig. 8 is that Fig. 7 connects block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
As most basic scheme, see shown in Fig. 1 to Fig. 5, heater 100 for liquid heating, including sealed support 1, calandria 10, water inlet 14 and outlet 11, sealing water channel 8 it is provided with between sealed support 1 and calandria 10, water inlet 14 and outlet about 11 are distributed, and connect with sealing water channel 8 respectively, described calandria 10 includes conducting-heat elements 3 and heater block 4, conducting-heat elements 3 inner surface contacts with sealing water channel 8, heater block 4 is thick-film heating circuit, heater block 4 is arranged on conducting-heat elements 3 outer surface, and between water inlet 14 and outlet 11 in the altitude range of correspondence, and seal the surface area surface area more than thick-film heating circuit of water channel 8.
As more preferably scheme, heater 100 includes sealed support 1, calandria 10, water inlet 14 and outlet 11, sealed support 1 and calandria 10 are tightly connected and have enclosed cavity between the two, seal 2 it is provided with in described cavity, seal 2 and calandria 10 surround the sealing water channel 8 of certain capacity, seal water channel 8 to be in communication with the outside by water inlet 14 and outlet 11 respectively, finally flow out from outlet 11 in the liquid of water inlet 14 entrance is all limited to by sealing seal water channel 8 and along sealing water channel 8.
Straight line communication path between the corresponding water inlet 14 of described seal 2 and outlet 11 is provided with sealed muscle 21, and sealed muscle 21 seals with calandria 10 and coordinates.Described sealed muscle 21 is one-body molded with seal 2, and the area that sealed muscle 21 contacts with seal 2 seals, more than sealed muscle 21, the area coordinating place with calandria 10.Described sealed muscle 21 seals with conducting-heat elements 3 that to coordinate the one end at place be tip-angled shape.
Described seal 2 is cast in outside sealed support 1, and described seal 2 is silica gel or rubber.
Described sealed support 1 and calandria 10 are the tubular structure of hollow, seal 2 is tightly placed in outside sealed support 1, sealed muscle 21 spiral formula is located at outside seal 2, the pitch of sealed muscle 21 forms spiral tank 22, calandria 10 is set in outside sealed support 1 and seal 2, calandria 10 two ends seal with sealed support 1 two ends respectively and coordinate, and spiral tank 22 and calandria 10 jointly surround spiral sealing water channel 8, water inlet 14 and outlet 11 and lay respectively at sealing water channel 8 two ends.
Described sealed support 1 is centrally formed with cavity 12, water inlet 14 and outlet 11 and is arranged on cavity 12 wall.Described sealed support 1 two ends are provided with flanging 13, flanging 13 and described conducting-heat elements 3 end welded seal.Described water inlet 14 and outlet 11 are fixed with sealed support 1 welded seal respectively, and water inlet 14 connects with sealing water channel 8 respectively with outlet 11.In a tubular form, inner side forms the cavity 12 of both ends open to described sealed support 1, and water inlet 14 and outlet 11 are arranged on cavity 12 wall.Described water inlet 14 and outlet 11 separately down and are bent upwards.
Described calandria 10 is shiny surface towards the surface of seal 2.
Described calandria 10 includes conducting-heat elements 3 and heater block 4, conducting-heat elements 3 is body, heater block 4 is thick-film heating circuit, thick-film heating circuit is sintered in conducting-heat elements 3 periphery altitude range corresponding between water inlet 14 and outlet 11, and seals the surface area surface area more than thick-film heating circuit of water channel 8.
Described thick-film heating circuit includes being sintered in the insulating bottom layer 41 of conducting-heat elements 3 outer surface, heat resistance layer 42 and insulating outer layer successively, insulating bottom layer 41 is additionally provided with and the power supply terminal 43 of heat resistance layer 42 conductive contact.Described heat resistance layer 42 is at least formed by one layer of resistance slurry sintering, it is provided with a plurality of from top to bottom, each bar heat resistance layer 42 is parallel to each other, and is connected by conducting bridge 44 between adjacent two heat resistance layers 42, and the heat resistance layer 42 at upper and lower two ends is conductively connected with power supply terminal 43 respectively.
Described conducting-heat elements 3 is provided with at least one near the leaving water temperature sensors 6 in outlet 11 position.Described leaving water temperature sensors 6 is arranged along liquid flow direction between water inlet 14 to outlet 11, leaving water temperature sensors 6, between water inlet 14 and outlet 11, flows out from outlet 11 after the liquid of water inlet 14 entrance sealing water channel 8 first passes through leaving water temperature sensors 6 search coverage again.
Owing to described water inlet 14 and outlet 11 are respectively close on the bottom of calandria 10 and top, so leaving water temperature sensors 6 is positioned at calandria 10 top.
It was additionally provided with temperature sensor 7 on described conducting-heat elements 3.
Described leaving water temperature sensors 6 is attached to thick-film heating circuit outer surface with crossing temperature sensor 7.The temperature data acquisition electrode connected with leaving water temperature sensors 6 and mistake temperature sensor 7 it is additionally provided with on the insulating bottom layer 41 of described thick-film heating circuit.
The described heater 100 for liquid heating also includes electric connector 20, electric connector 20 includes connecting seat 5, forceful electric power contact 53 and light current contact 52, connecting seat 5 to be arranged on calandria 10, forceful electric power contact 53 is arranged on light current contact 52 on connection seat 5 and contacts with the power supply terminal 43 on calandria 10 and temperature data acquisition electrodes conduct respectively;It is additionally provided with forceful electric power pin 531 and light current pin 521, forceful electric power pin 531 and light current pin 521 on described connection seat 5 to be conductively connected with forceful electric power contact 53 and light current contact 52 respectively.
Described conducting-heat elements 3 is made up of foil, and its surface is provided with fixed mount 54, connects seat 5 and fixes be connected with fixed mount 54 and conducting-heat elements 3, and fixed mount 54 is also electrically connected with grounding pin 541.
Described conducting-heat elements 3 is the circular tube shaped of hollow or flat tubular structure, thick-film heating circuit be open annular be arranged on conducting-heat elements 3 periphery, power supply terminal 43 and temperature data acquisition electrode be positioned at thick-film heating circuit head and the tail two ends;Described connection seat 5 is curved and is arranged on outside heater block 4, and wherein, forceful electric power contact 53 and light current contact 52 are arranged on connection seat 5 towards on the two ends, side of conducting-heat elements 3.
Above described connection seat 5, corresponding forceful electric power contact 53 and light current contact 52 are provided with backplate 51 behind.
Hook 55, hook 55 and conducting-heat elements 3 lower edge snapping it is additionally provided with bottom described connection seat 5.
Embodiment two, is with the difference of embodiment one: shown in Figure 6, and described sealed support 1 surface is provided with the location division 15 for limiting seal installation site.Described location division 15 is plural salient point or convex tendon.
Shown in Fig. 7, a kind of water cleaning systems with above-mentioned heater 100, including filter assemblies 9, flow regulator 30 and liquid heating 100, liquid heating 100 is provided with water inlet 14 and outlet 11, filter assemblies 9, flow regulator 30 and liquid heating 100 are connected by water route, and filter assemblies 9 is arranged on water inlet 14 water route before.
Also including inflow temperature detection device (inflow temperature sensor 40), described filter assemblies 9 includes that former pool 91, defecator 92 and clean water area 93, former pool 91 are connected with the water inlet 14 of liquid heating 100 by defecator 92, clean water area 93.
Described flow regulator 30 is water pump or flow control valve, and it is arranged between the water inlet 14 of filter assemblies 9 and liquid heating 100.
Described inflow temperature detection device is arranged on water inlet 14 water route before, and between inflow temperature detection device position and water inlet 14, water route is additionally provided with check valve 50.
Its operation principle: combine shown in Fig. 8, after tap water (can staff pour water source into toward former pool) enters former pool, entered the clean water area of lower section by defecator through outlet at bottom, by flow regulator, (system compares with inflow temperature detected value according to leaving water temperature detected value, and automatically adjust discharge by default leaving water temperature value), water purification is admitted to liquid heating 100 by check valve and flow regulator and heats, and is finally confessed by outlet and can meet the water purification that user's consumption temperature requires.