CN103892699A - Steam generator capable of improving heat energy efficiency - Google Patents
Steam generator capable of improving heat energy efficiency Download PDFInfo
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- CN103892699A CN103892699A CN201410136237.2A CN201410136237A CN103892699A CN 103892699 A CN103892699 A CN 103892699A CN 201410136237 A CN201410136237 A CN 201410136237A CN 103892699 A CN103892699 A CN 103892699A
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Abstract
The invention discloses a steam generator capable of improving heat energy efficiency, solving the technical problems such as serious heat energy loss and low heat energy utilization rate due to direct exhausting of flue gases into the atmosphere. The steam generator comprises a steam generation container, a burning device, a water supplement tank, a first heat exchanger, a second heat exchanger and a controller. The burning device is disposed below the steam generation container. The first heat exchanger is mounted inside the steam generation container. The second heat exchanger is mounted inside the water supplement tank. By the steam generator, water boiling time can be shortened, energy can be saved, and equipment damage caused by dry boiling can be effectively prevented; waste heat of the flue gases can be fully utilized, and heat efficiency of energy is improved; a fan can be effectively protected, and service life of the fan is prolonged; the steam generator has the advantages of safety, simplicity, convenience and the like.
Description
Technical field
The present invention relates to kitchen utensils, for one is for cooking food steam generator.
Background technology
The general food steamer that is set up on pot or the form of steam box of adopting when existing cooking food, is lit a fire and is made water boiling in pot produce steam to carry out cooking food by the bottom of a pan.Owing to producing a large amount of flue gases in the time lighting a fire, this flue gas has higher temperature, and this flue gas directly enters atmosphere under normal circumstances, thereby takes away a large amount of heat energy, causes heat utilization rate low, and the food cost steaming is high.In such cooking food mode, institute's employing steamer is single water container, and as pot etc., steaming in process, the consumption of the water in pot is very fast, therefore at regular intervals must be to supplementing water in pot.The supplementary moment of water generally goes by rule of thumb to grasp by user, and operation is gone in supplementing by user of water.The supplementary process of this water is an effort and process consuming time, first food steamer or the steam box of pot top should be carryed down, and after adding water, food steamer or steam box code is got on again; In addition, in food steaming process, in pot, add water temporarily, easily make food steaming poor effect or steaming time extend, cause equally energy waste, increase the processing cost of food.
Summary of the invention
The present invention solves when existing cooking food the energy flue gas producing that burn directly to enter the technical problems such as in atmosphere, institute's heat-energy losses that causes is serious, heat utilization rate is low, and then the steam generator that a kind of heat energy efficiency is high and can automatic makeup feed water is provided.
The steam generator that can improve heat energy efficiency of the present invention, has supporting construction, and steam produces container, burner; This steam produces container and burner is assemblied in supporting construction; It is a water container that this steam produces container, and this burner produces the below of container in steam; Also have with steam and produce the extra feed tank that container is communicated with, in this extra feed tank, be provided with water inlet switch, by water inlet switch and according to the water level setting, extra feed tank is supplied water, make extra feed tank there is the height of water level of setting; The flue gas that this burner burning energy produces flows into the first heat exchanger that is arranged on steam generation internal tank by flue; The first heat exchanger is communicated with the second heat exchanger of extra feed tank inside by flue again; The outlet of the second heat exchanger is connected with blower fan, by blower fan, flue gas is extracted out.
Particularly, this burner comprises burner, fuel gas supply system, igniter; This burner is located at the below of steam generation container; Around burner, be provided with flue gas and collect circle, flue gas enters the first heat exchanger by the import of the first heat exchanger after collecting circle centralized collection.
Further, this first heat exchanger is located at steam and produces the central part under the designated water level of container, be made up of heat-exchange tube, high-temperature flue gas enters through the import of the first heat exchanger, enters the second heat exchanger successively after the each heat-exchange tube being arranged in parallel by the outlet of the first heat exchanger; This second heat exchanger is for being located at gas flue on extra feed tank inwall.
Further, this extra feed tank produces container with steam and is communicated with by water pipe, on this water pipe, is provided with check valve.
Further again, it also includes controller, and this controller is connected with master switch, magnetic valve, ignition electrode, feedback pin, water inlet switch, water level sensor, combustion gas inductor, blast inductor, fan switch and alarm by circuit respectively; This magnetic valve is located on the pipeline of fuel gas supply system, and this ignition electrode and feedback pin form the igniter of burner; This water level sensor is located at extra feed tank inwall; This combustion gas inductor is a kind of gas sensor, is located near burner or around; This blast inductor is located at blower fan import department; Controller receives after starting-up signal, by the unlatching of controller control magnetic valve or close and the work of igniter; Detect the water level signal in extra feed tank by water level sensor simultaneously and pass to controller to control the unlatching of water inlet switch or to close; Detect the flue gas of blower fan import department by blast inductor strong and weak and pass to controller, by the unlatching of controller control blower fan or close; Detect near gas concentration burner and pass to controller with control work by combustion gas inductor; Meanwhile, send warning by alarm again once there is in the course of the work abnormal conditions, and cut off magnetic valve.
Further, this controller is also connected with air pressure inductor, and this air pressure inductor is located at steam and produces in container to detect steam pressure.
The version that the present invention adopts steam generation container to separate with extra feed tank is conducive to control steam and produces the water level in container, can determine that steam produces the lowest water level in container by controlling extra feed tank water level, water boiling time is shortened, save the energy, give by the automatic makeup of extra feed tank again, can effectively prevent that steam from producing container by dry combustion method and damage equipment simultaneously.
The present invention is by arranging the first heat exchanger and the second heat exchanger; can make full use of the waste heat in flue gas; improved the thermal efficiency of thermal source, high-temperature flue gas, by heat exchange in steam generation container, can be accelerated water boiling and evaporate on the one hand; low-temperature flue gas can carry out preheating to water in extra feed tank; can play and help wallop, on the other hand, reduce the discharge temperature of flue gas by heat exchange; be conducive to protect blower fan, extend its service life.
The present invention is by auto-control Design, can automatic ignition, automatic water-supply, automatic vent and automatically control the size of firepower, designed automatic safe protective simultaneously, and there is the features such as safe, easy.
Accompanying drawing explanation
Fig. 1 is a kind of schematic top plan view of the present invention;
Fig. 2 is for a kind of schematic rear view shown in Fig. 1;
Fig. 3 looks schematic diagram for a kind of end shown in Fig. 1;
Fig. 4 is for a kind of A-A sectional structure schematic diagram shown in Fig. 1;
Fig. 5 is for a kind of B-B sectional structure schematic diagram shown in Fig. 4;
Fig. 6 is a kind of control principle drawing of the present invention.
In figure, mark implication is as follows: 1, supporting construction; 2, steam produces container; 3, burner; 4, extra feed tank; 5, water inlet switch; 6, the first heat exchanger; 7, the second heat exchanger; 8, blower fan; 9, control cabinet; 10, check valve; 11, blast pipe; 12, collect circle.
The specific embodiment
Embodiment mono-
Referring to Fig. 1, Fig. 2 and Fig. 4, the steam generator that can improve heat energy efficiency of the present invention, there is the supporting construction 1 playing supporting role, this supporting construction 1 can be welded by angle steel etc., for supporting each member of whole steam generator and corresponding installation fitting (as below by the burner being illustrated etc.), supporting construction shown in figure has only reflected its main frame system, this main frame system is a kind of form of this supporting construction, in order to make its entirety complete, can install as housing (not shown in FIG.) such as stainless steels in its appearance.And further include steam and produce container 2, burner 3.It is a water container that this steam produces container 2, its top is for uncovered or have steam and collect cover or vapor collection device etc., for food steamer or steam box or steaming tray etc. are set up on uncovered and carry out cooking food, or for causing and steam accordingly utensil place and carry out food steaming by vapor collection and by guiding tube etc., shown in figure, be uncovered.This burner 3 produces the below of container 2 in steam, for the water of steam generation container is heated and makes water boiling and produce steam.This steam produces container 2 and burner 3 is assemblied in supporting construction 1 by respective accessory (as the installed parts such as angle steel, bolt are installed).The present invention also has the extra feed tank 4 being communicated with steam generation container, and this extra feed tank 4 is assemblied in supporting construction 1, and this extra feed tank 4 is provided with water inlet switch 5, and this water inlet switch is communicated with water system by water pipe; By water inlet switch 5 and according to the water level setting, extra feed tank is supplied water, make extra feed tank there is the height of water level of setting, thereby the water in the steam generation container that guarantees to communicate with extra feed tank is constantly having all the time the water level identical with extra feed tank in evaporation process.This water inlet switch can adopt mechanical switch, as ball-cock assembly etc.
Consult again Fig. 1, Fig. 4 and Fig. 5, burn flue gas that the energy produces of this burner 2 flows into the first heat exchanger 6 that is arranged on steam and produces internal tank by flue, this first heat exchanger be located at steam produce container inside and under above-mentioned designated water level, make the flue gas (being greater than 100 ℃) of higher temperatures carry out heat exchange for the first time with the high-temperature water (not higher than 100 ℃) that steam produces in container, effectively utilize the heat energy in flue gas; The first heat exchanger 6 is connected with the second heat exchanger 7 of extra feed tank inside by flue again, make the water at low temperature (Natural Water temperature or room temperature) in high-temperature flue gas and extra feed tank carry out heat exchange for the second time, heat energy in flue gas is made full use of, and water at low temperature is heated, so that can rapid evaporation.The outlet of the second heat exchanger 7 is connected with blower fan 8, by blower fan 8, flue gas is extracted out, discharges (shown in Fig. 1, Fig. 2 and Fig. 5) through blast pipe 11.This blower fan 8 is located at the exit of the second heat exchanger, can directly be assemblied in (shown in figure) on extra feed tank, can be conducive to reduce like this noise, its noise is below 70 decibels, far below the noise (75～85 decibels) of general burner after measured; Also can be assemblied in supporting construction.
This burner 3 comprises burner, fuel gas supply system, igniter.This burner is located at the below (consulting Fig. 4) of steam generation container 2, directly the bottom of steam generation container is heated; It can adopt existing general gas burner, as gas burner or gas burner.Connect fuel gas source and burner by fuel gas supply system, provide combustion gas by the main valve (this main valve is used for connecting fuel gas source and controls its flow) of opening on fuel gas supply system to burner, then carry out ignition by igniter.Referring to Fig. 3 and Fig. 4, in order fully to collect the flue gas that burner 3 produces in combustion process, in burner, around burner, be provided with flue gas and collect circle 12, flue gas enters the first heat exchanger 6 by the import of the first heat exchanger after collecting circle centralized collection, to carry out heat exchange.
Continue to consult Fig. 1, Fig. 4 and Fig. 5, this first heat exchanger 6 is located at steam and produces the central part under the designated water level of container 2, formed by heat-exchange tube, high-temperature flue gas enters through the import of the first heat exchanger, enters the second heat exchanger 7 successively after the each heat-exchange tube being arranged in parallel by the outlet of the first heat exchanger.According to circumstances can also adopt multilayer circulation design, on heat-exchange tube, design the technological means such as radiating fin and improve its heat energy efficiency.High-temperature flue gas is in the flow process of the first heat exchanger 6, and the water producing in container with steam carries out heat exchange fully, makes thermal energy transfer in high-temperature flue gas to water, makes water fast boiling and produces steam, improves widely energy efficiency.This second heat exchanger 7 is for being located at fume pipe on extra feed tank inwall, and this fume pipe is located under the designated water level of extra feed tank 4.The flue gas being flowed out by the first heat exchanger outlet enters the second heat exchanger; In the second heat exchanger, flue gas around extra feed tank inwall flow, in its flow process with extra feed tank in water carry out heat exchange, waste heat in flue gas is fully passed in the water in extra feed tank, the water temperature of extra feed tank is raise, be convenient to the boiling that heats up.
Continue referring to Fig. 1, this extra feed tank produces container with steam and is communicated with by water pipe, on this water pipe, be provided with check valve 10, with guarantee for the water one direction of feed-tank flow to steam and produce container, in the time of extra feed tank lack of water (as extra feed tank leaks), prevent aqueous reflux and affect steam produce hold normal work.
Embodiment bis-
The structure division not being illustrated in the present embodiment is with embodiment mono-.
Use for the ease of operation, the present invention also includes controller, and this controller is assemblied in control cabinet 9, and this control cabinet can be arranged on directly or indirectly in supporting construction and (shown in Fig. 1～5, be directly installed on the outer wall of extra feed tank).Referring to Fig. 6, this controller is connected with master switch, magnetic valve, ignition electrode, feedback pin, water inlet switch, water level sensor, combustion gas inductor, blast inductor, fan switch and alarm by circuit respectively.This controller can adopt existing control module.This magnetic valve is located on the pipeline of fuel gas supply system so that main valve in fuel gas supply system open after also by the supply of solenoid control combustion gas, cause disaster with anti-gas-leak.This ignition electrode and feedback pin form the igniter of burner, to carry out automatic ignition operation; They are located on burner.This water inlet switch is the water inlet switch on extra feed tank, and it adopts solenoid electric valve, by opening with the water supply to extra feed tank; This water level sensor is located at extra feed tank inwall, for detection of the height of water level of extra feed tank.Combustion gas inductor is a kind of gas sensor, for detection of gas concentration, generally can be located near burner or around, to detect the gas concentration at burner place.This blast inductor is located at blower fan import department, in order to detect the blast size of blower fan import.Fan switch is for controlling the unlatching of blower fan or closing.This master switch and alarm (can adopt general audible-visual annunciator) are located at the convenient operation place in supporting construction, are respectively used to connect external power source and carry out alarm.Automatic Control Theory of the present invention is as follows: when after power-on master switch, (being generally 220V alternating current) switches on power, after the bypass supply circuit of via controller, generate various operating voltages (as the direct current of+10V) and normally work for controller and blower fan.Controller receives after starting-up signal by master switch, by the unlatching of controller control magnetic valve or close and the work of igniter; Detect the water level signal in extra feed tank by water level sensor simultaneously and pass to controller to control the opening and closing of water inlet switch; Detect the flue gas of blower fan import department by blast inductor strong and weak and pass to controller, by the unlatching of controller control blower fan or close; Detect near gas concentration burner and pass to controller with control work by combustion gas inductor; Meanwhile, send warning by alarm again once there is in the course of the work abnormal conditions, cut off magnetic valve simultaneously.
This controller is also connected with air pressure inductor, and this air pressure inductor is located at steam and produces in container to detect steam pressure.Air pressure inductor detects steam and produces the vapour pressure in container and pass to controller, by the unlatching size of controller control magnetic valve, thus the combustion flame power of control combustion device.Too high when the pressure that air pressure inductor detects, as be greater than 1.5 atmospheric pressure, by controller control magnetic valve, thus electromagnetic valve for adjusting flow, to reach safe and reliable object.When actual use, magnetic valve can be opened to size and be controlled at third gear, i.e. " little fire ", " moderate heat " and " big fire ", detecting vapour pressure size by air pressure inductor respectively controls, during as 1 atmospheric pressure, control magnetic valve for " big fire " opening, when 1 to 1.5 atmospheric pressure, control magnetic valve for " moderate heat " opening, while being greater than 1.5 atmospheric pressure, control magnetic valve for " little fire " opening.
Specific works process of the present invention is as follows: open master switch, switch on power, controller receives starting-up signal.By controller opens magnetic valve, carry out automatic feeding to burner, carry out automatic ignition with the ignition electrode in Time Controller control point fire device, by feedback pin by fired state signal feedback to controller.In the time that the signal of feedback pin detection is " state catches fire ", the ignition electrode of controller control stops igniting, otherwise is again lighted a fire by controller control ignition electrode, until light a fire successfully.If after loss of ignition repeatedly (being generally set as five times), send alarm sound by controller control alarm, remind user, also close solenoid valve shuts combustion source simultaneously.In the time that controller receives off signal, control electronic valve simultaneously and close the combustion source that cuts off.In work simultaneously, detect the water level situation of extra feed tank and pass to controller by water level sensor, when the low water level of water level in designated water level detected, open water inlet switch by controller extra feed tank is carried out to moisturizing, in the time being replenished to the high water level place of designated water level, stop moisturizing, cause disaster with anti-overflow.In work simultaneously, detect near gas concentration burner by gas sensor, once the gas concentration detecting is too high, as in gas leakage or when burning, flame-outly can cause near gas concentration burner too high while waiting fortuitous event generation, controller will send warning by alarm (as audible-visual annunciator), control closed electromagnetic valve simultaneously, cut off combustion source.In work, also detect the flue gas flow of blower fan import department by blast inductor, in the time that flue gas flow is too small, as little fire burning, by controller by controlling fan switch and closing blower fan, to reach the object of economize on electricity.
Claims (6)
1. can improve the steam generator of heat energy efficiency, there is supporting construction (1), and further include steam generation container (2), burner (3); This steam produces container (2) and burner (3) is assemblied in supporting construction (1); It is characterized in that: it is a water container that this steam produces container (2), this burner (3) produces the below of container (2) in steam; Also have with steam and produce the extra feed tank (4) that container is communicated with, in this extra feed tank (4), be provided with water inlet switch (5), by water inlet switch (5) and according to the water level setting, extra feed tank is supplied water, make extra feed tank there is the height of water level of setting; The flue gas that this burner (2) burning energy produces flows into the first heat exchanger (6) that is arranged on steam generation internal tank by flue; The first heat exchanger (6) is communicated with second heat exchanger (7) of extra feed tank inside by flue again; The outlet of the second heat exchanger (7) is connected with blower fan (8), by blower fan (8), flue gas is extracted out.
2. steam generator according to claim 1, is characterized in that: this burner (3) comprises burner, fuel gas supply system, igniter; This burner is located at the below of steam generation container (2); Around burner, be provided with flue gas and collect circle (12), flue gas enters the first heat exchanger (6) by the import of the first heat exchanger after collecting circle centralized collection.
3. steam generator according to claim 2, it is characterized in that: this first heat exchanger (6) be located at steam produce container (2) designated water level under central part, formed by heat-exchange tube, high-temperature flue gas enters through the import of the first heat exchanger, enters the second heat exchanger (7) successively after the each heat-exchange tube being arranged in parallel by the outlet of the first heat exchanger; This second heat exchanger (7) is for being located at gas flue on extra feed tank inwall.
4. steam generator according to claim 3, is characterized in that: this extra feed tank produces container with steam and is communicated with by water pipe, is provided with check valve (10) on this water pipe.
5. steam generator according to claim 4, it is characterized in that: further include controller, this controller is connected with master switch, magnetic valve, ignition electrode, feedback pin, water inlet switch, water level sensor, combustion gas inductor, blast inductor, fan switch and alarm by circuit respectively; This magnetic valve is located on the pipeline of fuel gas supply system, and this ignition electrode and feedback pin form the igniter of burner; This water level sensor is located at extra feed tank inwall; This combustion gas inductor is a kind of gas sensor, is located near burner or around; This blast inductor is located at blower fan import department; Controller receives after starting-up signal, by the unlatching of controller control magnetic valve or close and the work of igniter; Detect the water level signal in extra feed tank by water level sensor simultaneously and pass to controller to control the unlatching of water inlet switch or to close; Detect the flue gas of blower fan import department by blast inductor strong and weak and pass to controller, by the unlatching of controller control fan switch or close; Detect near gas concentration burner and pass to controller with control work by combustion gas inductor; Meanwhile, send warning by alarm again once there is in the course of the work abnormal conditions, and cut off magnetic valve.
6. steam generator according to claim 5, is characterized in that: this controller is also connected with air pressure inductor, and this air pressure inductor is located at steam and produces in container to detect steam pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136237.2A CN103892699A (en) | 2014-04-08 | 2014-04-08 | Steam generator capable of improving heat energy efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136237.2A CN103892699A (en) | 2014-04-08 | 2014-04-08 | Steam generator capable of improving heat energy efficiency |
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| Publication Number | Publication Date |
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| CN103892699A true CN103892699A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410136237.2A Pending CN103892699A (en) | 2014-04-08 | 2014-04-08 | Steam generator capable of improving heat energy efficiency |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456659A (en) * | 2014-11-10 | 2015-03-25 | 昆明博远中菱科技有限公司 | Heat energy comprehensive utilization system |
| CN106319105A (en) * | 2015-06-30 | 2017-01-11 | 仲林 | Leather drying device |
| CN114176387A (en) * | 2021-12-14 | 2022-03-15 | 孙秀 | Energy-saving gas steam box |
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| CN201462780U (en) * | 2009-05-20 | 2010-05-12 | 北京肯度商用电器有限责任公司 | Energy-saving environment-friendly fuel gas vapour generator |
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| CN114176387A (en) * | 2021-12-14 | 2022-03-15 | 孙秀 | Energy-saving gas steam box |
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Application publication date: 20140702 |