CN111387803A - Steam system of double-inner-container steam box and detection method for steam valve fault of steam system - Google Patents
Steam system of double-inner-container steam box and detection method for steam valve fault of steam system Download PDFInfo
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- CN111387803A CN111387803A CN201910004338.7A CN201910004338A CN111387803A CN 111387803 A CN111387803 A CN 111387803A CN 201910004338 A CN201910004338 A CN 201910004338A CN 111387803 A CN111387803 A CN 111387803A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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- Food Science & Technology (AREA)
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Abstract
The utility model provides a steam system of two inner bags steam agers, steam generator gas outlet and steam valve income gas port are linked together, two gas outlets of steam valve are linked together with the income gas port of first inner bag and second inner bag respectively, the gas outlet and the wind guide component air inlet of first inner bag and second inner bag are linked together, install first pressure switch on the pipeline between steam generator and steam valve, install second pressure switch on the pipeline between steam valve and first inner bag, install third pressure switch on the pipeline between steam valve and second inner bag. This two inner bag steam agers can real-time detection steam valve whether by stifled dying, when the steam valve is stifled dying, first pressure switch feedback signal of telecommunication cuts off the steam generator power, and control panel shows that the stifled dead fault of steam valve indicates, when two inner bags during operation alone, second pressure switch and third pressure switch all work, and the signal of telecommunication is sent back this moment, cuts off the steam generator power, the stop heating to show the sealed not tight fault indication of steam valve on control panel.
Description
Technical Field
The invention relates to a double-liner steam box, in particular to a steam system of the double-liner steam box and a steam valve fault detection method thereof.
Background
The steam generator is one of the essential parts of the existing household appliances with steam function, and taking the steam box frequently used in the current household kitchen as an example, the steam box comprises a water tank, a steam generator, a steam heater, a blower device and other units. The existing steam generator generally comprises a base and a heating component arranged on the outer surface of the base, water inside the base is heated by the heating component to generate steam, and the generated steam flows out of the steam generator and enters the cooking inner container to heat food.
At present, in two inner bags layering steam agers or steam oven, adopt a steam generator and steam valve structure usually, the opening and closing of two way steam channel of steam valve independent control, the steam valve is in the course of the work, especially a certain passageway is opened, when another way passageway is closed, steam valve probably appears blocking up or sealed trouble such as not living, will lead to steam generator internal gas sharp increase during the blocking up, it can burst open to connect inlet tube department, there is the potential safety hazard, it will lead to steam to reveal to another inner bag to seal not living, influence product property ability and user experience. Therefore, a method of detecting a steam valve failure has yet to be proposed.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a steam system of a double-inner-container steam box, which can prevent potential safety hazards caused by blocking of a steam valve, aiming at the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a simple and reliable method for detecting a steam valve fault of a steam system of a double-liner steam box, aiming at the current state of the prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: this steam system of two inner bags steam agers, including steam generator, steam valve, first inner bag, second inner bag and air guide component, steam generator's gas outlet is linked together with the income gas port of steam valve, the steam valve has two gas outlets, and two gas outlets of steam valve are linked together with the income gas port of first inner bag and second inner bag respectively, the gas outlet of first inner bag and second inner bag with air guide component's air inlet is linked together its characterized in that: a first pressure switch is installed on a pipeline between the steam generator and the steam valve, a second pressure switch is installed on a pipeline between the steam valve and the first inner container, and a third pressure switch is installed on a pipeline between the steam valve and the second inner container.
Preferably, the steam system further comprises a safety valve, a pipeline between the steam generator and the steam valve at the air inlet of the safety valve is communicated, and an air outlet of the safety valve is communicated with a pipeline at the front end of the air guide component.
Further preferably, the steam system further comprises a controller and a control panel, wherein the signal output ends of the first pressure switch, the second pressure switch and the third pressure switch are electrically connected with the signal input end of the controller, the controller can correspondingly control the power supply of the steam generator according to the electric signals received from the first pressure switch, the second pressure switch and the third pressure switch, and the control panel can display corresponding fault prompts of the steam valve.
Further preferably, the steam generator has two air outlets, the steam valve has two air inlets, and the two air outlets of the steam generator are respectively communicated with the two air inlets of the steam valve.
Preferably, the air guide assembly is provided with two air inlets and an air outlet, the air outlets of the first inner container and the second inner container are respectively communicated with the air inlets corresponding to the air guide assembly, and the air outlet of the air guide assembly is communicated with the outer space of the steam box.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the steam valve fault detection method of the steam system of the double-inner-container steam box is characterized by comprising the following state detection steps:
when the steam valve works normally, the safety valve does not work, and the first pressure switch does not work; at the moment, if the first inner container and the second inner container work simultaneously, the second pressure switch and the third pressure switch work, and the second pressure switch and the third pressure switch do not feed back electric signals; if the first inner container works independently, the second pressure switch works, the third pressure switch does not work, and no electric signal is fed back at the moment; if the second inner container works independently, the third pressure switch works, the second pressure switch does not work, and no electric signal is fed back at the moment;
when the steam valve is blocked, the pressure in the steam generator is rapidly increased, when the steam pressure at the front end of the steam valve is increased to P1, the first pressure switch starts to work and feeds back an electric signal, the controller cuts off the power supply of the steam generator and stops heating, the control panel displays the fault prompt of the blockage of the steam valve, at the moment, the waste heat of a heating pipe at the bottom of the steam generator can be continuously heated, the air pressure in the steam generator is continuously increased, when the steam pressure is increased to P2, the safety valve starts to work, and the steam generated by the steam generator enters the air guide assembly through the safety valve;
when the steam valve is not sealed, the safety valve and the first pressure switch do not work; at the moment, if the first inner container works alone and the steam pipeline of the second inner container is not sealed tightly, the steam pressure at the outlet of the steam valve reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the power supply of the steam generator is cut off, heating is stopped, and the control panel displays a fault prompt of the steam valve sealing not tightly; when the second inner container works independently and the steam pipeline of the first inner container is not sealed, the steam pressure at the outlet of the steam valve reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the controller cuts off the power supply of the steam generator, heating is stopped, and the control panel displays a fault prompt that the steam valve is not sealed tightly.
Compared with the prior art, the invention has the advantages that: the double-inner-container steam box is additionally provided with the first pressure switch on the steam pipeline, so that whether the steam valve is blocked or not can be detected in real time, when the steam valve is blocked, the first pressure switch works and feeds back an electric signal to cut off the power supply of the steam generator, the heating is stopped, the control panel displays the fault prompt of the blockage of the steam valve, a second pressure switch and a third pressure switch are arranged between the steam valve and the two inner containers, when the two inner containers work independently, the two pressure switches work, at the moment, an electric signal is fed back, the power supply of the steam generator is cut off, the heating is stopped, and the fault prompt that the steam valve is not tightly sealed is displayed on the control panel, in addition, a safety valve is added on the steam pipeline, after the steam generator stops heating, the waste heat can continue to heat the steam pressure and continue to increase, and the safety valve is opened to discharge the steam when the steam pressure reaches a set value of the safety valve, so that potential safety hazards generated after the steam valve is blocked are prevented.
Drawings
FIG. 1 is a diagram of physical connections for an embodiment of the present invention;
FIG. 2 is a logic diagram of a detection method according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the steam system of the double-inner-container steam box of the present embodiment includes a steam generator 1, a steam valve 2, a first inner container 3, a second inner container 4, an air guide assembly 5, a safety valve 6, a first pressure switch 7, a second pressure switch 8, and a third pressure switch 9. Wherein, steam generator 1 has two gas outlets, steam valve 2 has two gas inlets and two gas outlets, two gas outlets of steam generator 1 are linked together with two gas inlets of steam valve 2 respectively, two gas outlets of steam valve 2 are linked together with the gas inlet of first inner bag 3 and second inner bag 4 respectively, the gas outlet of first inner bag 3 and second inner bag 4 communicates respectively with two air inlets of air guide component 5, air guide component 5's gas vent is linked together with the steam ager exterior space. The connecting structure of the steam pipeline is the same as that of the existing double-inner-container steam box.
In this embodiment, the steam generator 1 at the air inlet of the safety valve 6 is communicated with the steam valve 2 through a pipeline, and the air outlet of the safety valve 6 is communicated with the pipeline at the front end of the air guide component 5. After the safety valve 6 is arranged, when the steam pressure in the steam generator 1 reaches the set value of the safety valve 6, the safety valve 6 is opened to discharge the steam, and potential safety hazards generated after the steam valve 2 is blocked are prevented.
The first pressure switch 7 is installed on a pipeline between the steam generator 1 and the steam valve 2, the second pressure switch 8 is installed on a pipeline between the steam valve 2 and the first inner container 3, and the third pressure switch 9 is installed on a pipeline between the steam valve 2 and the second inner container 4. The steam system further comprises a controller and a control panel, wherein the signal output ends of the first pressure switch 7, the second pressure switch 8 and the third pressure switch 9 are electrically connected with the signal input end of the controller, the controller can correspondingly control the power supply of the steam generator 1 according to the electric signals received from the first pressure switch 7, the second pressure switch 8 and the third pressure switch 9, and the control panel can display corresponding fault prompts of the steam valve 2.
Assuming that the set pressure value of the safety valve 6 is P2, the set pressure value of the first pressure switch 7 is P1, the set pressure values of the second pressure switch 8 and the third pressure switch 9 are P3, when the steam valve 2 works normally (functions are normal, and the steam valve is not blocked or sealed tightly), the steam pressure P at the front end of the steam valve is P0, wherein P3< P0< P1< P2, P1 is S × P0, and S is a safety factor, a suggested value of 3-5 is provided, when the steam valve 2 is blocked, the pressure in the steam generator 1 increases rapidly, when the steam pressure at the front end of the steam valve 2 increases to P1, the first pressure switch 7 starts to work, an electric signal is fed back, the controller cuts off the power supply of the steam generator 1, heating is stopped, the control panel displays a fault prompt that the steam valve is blocked, at this time, the waste heat of the heating pipe at the bottom of the steam generator 1 continues to heat, the air pressure in the steam generator 1 continues to increase, when the pressure in the safety valve 6 increases to P2, the safety valve 1 starts to work, the safety valve 1 generates steam, and the steam generator 1 further generates a pressure reducing valve, and the steam flow speed of the safety valve 6 is not lower than the steam guide space (the steam box is not lower than the steam guide space, and the steam.
As shown in fig. 2, in the method for detecting a steam valve fault in a steam system of a double-liner steam box according to the present embodiment, the different operating states of the steam valve are determined as follows:
when the steam valve 2 works normally, the safety valve 6 does not work, and the first pressure switch 7 does not work; at this time, if the first inner container 3 and the second inner container 4 work simultaneously, the second pressure switch 8 and the third pressure switch 9 work, and the second pressure switch 8 and the third pressure switch 9 do not feed back an electric signal; if the first inner container 3 works alone, the second pressure switch 8 works, the third pressure switch 9 does not work, and no electric signal is fed back at the moment; if the second inner container 4 works alone, the third pressure switch 9 works, the second pressure switch 8 does not work, and no electric signal is fed back at the moment;
when the steam valve 2 is blocked, the pressure in the steam generator 1 is rapidly increased, when the steam pressure at the front end of the steam valve 2 is increased to P1, the first pressure switch 7 starts to work, an electric signal is fed back, the controller cuts off the power supply of the steam generator 1, heating is stopped, the control panel displays a fault prompt that the steam valve is blocked, at the moment, the waste heat of a heating pipe at the bottom of the steam generator 1 can be continuously heated, the air pressure in the steam generator 1 is continuously increased, when the steam pressure is increased to P2, the safety valve 6 starts to work, and steam generated by the steam generator 1 enters the air guide assembly 5 through the safety valve 6;
when the steam valve 2 is not sealed, the safety valve 6 and the first pressure switch 7 do not work; at the moment, if the first inner container 3 works alone and the steam pipeline of the second inner container 4 is not sealed tightly, the steam pressure at the outlet of the steam valve 2 reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the power supply of the steam generator 1 is cut off, heating is stopped, and the control panel displays a fault prompt that the steam valve is not sealed tightly; when the second inner container 4 works alone and the steam pipeline of the first inner container 3 is not sealed, the steam pressure at the outlet of the steam valve 2 reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the controller cuts off the power supply of the steam generator 1, heating is stopped, and the control panel displays the fault prompt of the untight sealing of the steam valve.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention may be modified or improved in many ways, for example, the safety valve may also be eliminated, when the pressure in the steam generator is increased to make the first pressure switch work, the steam generator stops heating, at this time, the steam generated in the steam generator may be slowly discharged through the tiny gap at the connection between the air outlet and the rubber air pipe, there may be a certain decibel of noise during the pressure discharge process, the user experience is slightly poor, the safety level is lower than the case of installing the safety valve, but the advantages are lower cost, reducing a new part can reduce the maintenance rate of the whole machine, and these are all considered to be within the protection scope of the present invention.
Claims (6)
1. The utility model provides a steam system of two inner bags steam agers, includes steam generator (1), steam valve (2), first inner bag (3), second inner bag (4) and air guide component (5), the gas outlet of steam generator (1) is linked together with the income gas port of steam valve (2), steam valve (2) have two gas outlets, and two gas outlets of steam valve (2) are linked together with the income gas port of first inner bag (3) and second inner bag (4) respectively, the gas outlet of first inner bag (3) and second inner bag (4) with the air inlet of air guide component (5) is linked together its characterized in that: a first pressure switch (7) is installed on a pipeline between the steam generator (1) and the steam valve (2), a second pressure switch (8) is installed on a pipeline between the steam valve (2) and the first inner container (3), and a third pressure switch (9) is installed on a pipeline between the steam valve (2) and the second inner container (4).
2. The steam system of a double-liner steam box of claim 1, wherein: the steam generator is characterized by further comprising a safety valve (6), a pipeline between the steam generator (1) and the steam valve (2) at the air inlet of the safety valve (6) is communicated, and an air outlet of the safety valve (6) is communicated with a pipeline at the front end of the air guide component (5).
3. The steam system of a double-liner steam box of claim 1, wherein: the steam generator further comprises a controller and a control panel, signal output ends of the first pressure switch (7), the second pressure switch (8) and the third pressure switch (9) are electrically connected with a signal input end of the controller, the controller can correspondingly control the power supply of the steam generator (1) according to electric signals received from the first pressure switch (7), the second pressure switch (8) and the third pressure switch (9), and the control panel can display corresponding fault prompts of the steam valve (2).
4. The steam system of a double-liner steam box of claim 1, wherein: the steam generator (1) is provided with two air outlets, the steam valve (2) is provided with two air inlets, and the two air outlets of the steam generator (1) are respectively communicated with the two air inlets of the steam valve (2).
5. The steam system of a double-liner steam box of claim 1, wherein: the air guide assembly (5) is provided with two air inlets and an air outlet, the air outlets of the first inner container (3) and the second inner container (4) are respectively communicated with the air inlets corresponding to the air guide assembly (5), and the air outlet of the air guide assembly (5) is communicated with the outer space of the steam box.
6. A steam valve failure detection method for a steam system of a double-liner steam box as claimed in claim 2, characterized by comprising the following state detection:
when the steam valve (2) works normally, the safety valve (6) does not work, and the first pressure switch (7) does not work; at the moment, if the first inner container (3) and the second inner container (4) work simultaneously, the second pressure switch (8) and the third pressure switch (9) work, and the second pressure switch (8) and the third pressure switch (9) do not feed back electric signals; if the first inner container (3) works independently, the second pressure switch (8) works, the third pressure switch (9) does not work, and no electric signal is fed back at the moment; if the second inner container (4) works independently, the third pressure switch (9) works, the second pressure switch (8) does not work, and no electric signal is fed back at the moment;
when the steam valve (2) is blocked, the pressure in the steam generator (1) is rapidly increased, when the steam pressure at the front end of the steam valve (2) is increased to P1, the first pressure switch (7) starts to work to feed back an electric signal, the controller cuts off the power supply of the steam generator (1) and stops heating, the control panel displays a fault prompt that the steam valve is blocked, at the moment, the waste heat of a heating pipe at the bottom of the steam generator (1) can continue to heat, the air pressure in the steam generator (1) continues to increase, when the steam pressure is increased to P2, the safety valve (6) starts to work, and steam generated by the steam generator (1) enters the air guide assembly (5) through the safety valve (6);
when the steam valve (2) is not sealed, the safety valve (6) and the first pressure switch (7) do not work; at the moment, if the first inner container (3) works alone and the steam pipeline of the second inner container (4) is not sealed tightly, the steam pressure at the outlet of the steam valve (2) reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the power supply of the steam generator (1) is cut off, heating is stopped, and the control panel displays the fault prompt of the untight sealing of the steam valve; when the second inner container (4) works independently and the steam pipeline of the first inner container (3) is not sealed, the steam pressure at the outlet of the steam valve (2) reaches the pressure set value P3 of the second pressure switch and the third pressure switch, an electric signal is fed back at the moment, the controller cuts off the power supply of the steam generator (1), heating is stopped, and the control panel displays a fault prompt that the steam valve is not sealed tightly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004338.7A CN111387803B (en) | 2019-01-03 | 2019-01-03 | Steam system of double-inner-container steam box and detection method for steam valve fault of steam system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910004338.7A CN111387803B (en) | 2019-01-03 | 2019-01-03 | Steam system of double-inner-container steam box and detection method for steam valve fault of steam system |
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| CN111387803A true CN111387803A (en) | 2020-07-10 |
| CN111387803B CN111387803B (en) | 2021-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315327A (en) * | 2020-10-27 | 2021-02-05 | 珠海格力电器股份有限公司 | Cooking apparatus, control method thereof, control device thereof, and computer-readable storage medium |
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| RACKEMANN, D. W. ETC: "A new design of jigger system to improve vacuum pan performance", 《XXVI CONGRESS, INTERNATIONAL SOCIETY OF SUGAR CANE TECHNOLOGISTS, ICC, DURBAN, SOUTH AFRICA, 29 JULY - 2 AUGUST, 2007》 * |
| 钱苹生等: "关于蒸箱汽封口节能效果的探讨", 《纺织导报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315327A (en) * | 2020-10-27 | 2021-02-05 | 珠海格力电器股份有限公司 | Cooking apparatus, control method thereof, control device thereof, and computer-readable storage medium |
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