CN103398366A - Steam generating plant and method for operating same - Google Patents

Abstract

The invention discloses a steam generating plant and a method for operating the same. The steam generating plant comprises a steam generator, a water tank, a floater, a water quantity detecting board, a water pipe, a water tank, a controller and a power source. The steam generator comprises a water accommodating cavity and a PTC (positive temperature coefficient) heating unit, the water accommodating cavity is jointly formed by a front cover and a rear cover in a surrounded manner, the PTC heating unit is arranged on the outer surface of the front cover, a water inlet is formed in the front cover, and a steam outlet is formed in the rear cover. A heat-conducting silicone grease layer is arranged between the PTC heating unit and the front cover. A socket is further arranged on the front cover, and an NTC (negative temperature coefficient) temperature controller can be plugged into the socket. The floater is arranged in the water tank, the water quantity detecting board is attached onto the water tank and is electrically connected with the controller, the water tank is communicated with the water inlet via the water pipe, the water pump is serially connected into the water pipe, the controller is electrically connected with the power source and the water pump, and the NTC temperature controller is electrically connected with the controller. The steam generating plant and the method have the advantages of simple and reasonable structure, flexibility in operation and low manufacturing cost.

Description

Steam raising plant and method of operating thereof

Technical field

The present invention relates to a kind of steam raising plant, particularly a kind of steam raising plant and method of operating thereof.

Background technology

Present steam generator on the market, what its heater adopted is all embedded electrothermal tube, the service life of this electrothermal tube is short, fragile, work uses voltage narrow, causes the volume of steam generator large, heating temp is difficult to accurate temperature control, can not moment produces the problems such as a large amount of steam.Because embedded electrothermal tube at high temperature uses for a long time, so generally use some months to two year to burn out, and burn out the rear replacing that generally is difficult to.Yet the time that steam generator uses is generally longer, and this just means that the steam generator with this electrothermal tube in use will repeatedly keep in repair and change heater, and this brings great trouble to the user.

Chinese patent literature CN 200996593Y discloses a kind of steam generator on December 26th, 2007, by shell, steam (vapor) outlet, control circuit, water tank, heater, the waterproof penetration pipe, the heater temperature limiter, the water temperature temperature limiter, discharge outlet, temperature controller, lack of water outage contactor, float, water energising contactor is arranged, water inlet pipe, water intaking valve and steam generator support form, pyrotoxin is semiconductor element, by ceramic body, wrapped, the pyrotoxin protective layer that waterproof is arranged outward, the pyrotoxin live wire picks out, pyrotoxin is placed in the heater outer cover and forms heater, be contained in water tank, the heater temperature limiter is housed on heater, in water tank, be provided with float, float can move, can touch and make water energising contactor, there is water energising contactor to control water intaking valve, water intaking valve is at the water tank inner top, having water energising contactor to connect the heater steam (vapor) outlet communicates in water tank upper and water tank, lack of water outage contactor is in the water tank bottom, the water temperature temperature limiter is arranged in water tank, temperature controller is controlled by control circuit, and the waterproof penetration pipe passes shell in water tank.This steam generator is because adopting semiconductor element as pyrotoxin, so extended the service life of steam generator, still, its complex structure, cost of manufacture is higher.

Summary of the invention

Purpose of the present invention aims to provide a kind of simple and reasonable, flexible operation, steam raising plant and method of operating thereof that cost of manufacture is low, to overcome weak point of the prior art.

A kind of steam raising plant by this purpose design, comprise steam generator, this steam generator comprises water containing chamber and PTC heater, its architectural feature is that protecgulum and bonnet surround water containing chamber jointly, the PTC heater is arranged on the outer surface of protecgulum, on protecgulum, be provided with water inlet, on bonnet, be provided with steam (vapor) outlet.

Further, between described PTC heater and protecgulum, be provided with the heat-conducting silicone grease layer.

Further, on described protecgulum, also be provided for the socket of plug-in mounting NTC temperature controller.

Further, steam raising plant also comprises water tank, float, water yield check-out console, water pipe, water pump, controller and power supply, and wherein, float is arranged in water tank, water yield check-out console is attached on water tank, water yield check-out console is electrically connected to controller, and water tank communicates with water inlet by water pipe, and water pump is serially connected in water pipe, controller is electrically connected to power supply, controller is electrically connected to water pump, and the NTC temperature controller is electrically connected to controller, and controller is electrically connected to the PTC heater.

A kind of method of operating of steam raising plant is characterized in that comprising the following steps:

Step 1, the power supply that switches on power,

Step 2, start controller, sets the working time,

Step 3, detect the water yield in water tank by float and water yield check-out console, and detect complete rear timing and start,

Step 4, when in water tank, water being arranged, enter step 5; When in water tank, there is no water, enter step 11,

Step 5, by the operating temperature t of NTC temperature controller detection PTC heater,

Step 6, when 0 ℃<operating temperature t≤125 ℃, enter step 7, when 125 ℃≤operating temperature t, enters step 10,

Step 7, start the PTC heater and heat, and enters step 8,

Step 8, when the working time finishes, enter step 9; When the working time does not finish, enter step 5,

Step 9, detect and heating all stops,

Step 10, water pump pump water, enter step 3,

Step 11, the prompting water tank adds water, and time out, enter step 3.

Between PTC heater in the present invention and protecgulum, be provided with the heat-conducting silicone grease layer, thereby improve the transmission between heat, improve heating rate.

When the present invention worked, energy consumption was low, noise is low, the steam supply is continuous, and PTC heater wherein can be comprised of the ceramic heating element more than a group, can, according to the corresponding increase heater of product needed quantity, have larger flexibility.The PTC heater is a kind of semiconductive ceramic heater, is also a kind of thermistor of positive temperature coefficient, and its resistance value presents the increase of step evolution along with the rising of thermistor body temperature, temperature is higher, resistance value is larger, and its power is less, effectively reduces energy consumption.

That the present invention has is simple and reasonable, flexible operation, characteristics that cost of manufacture is low.

The accompanying drawing explanation

Fig. 1 is the decomposing schematic representation of the steam generator in the present invention.

Fig. 2 is the rear perspective schematic diagram of Fig. 1.

Fig. 3 is the schematic perspective view after the steam generator assembling.

Fig. 4 is the axial local cut-away illustration of steam generator.

Fig. 5 is the schematic diagram of the present invention while using.

Fig. 6 is control flow chart of the present invention.

In figure: 1 is the PTC heater, and 2 is protecgulum, and 3 is sealing ring, and 4 is bonnet, 5 is water inlet, and 6 is socket, and 7 is the NTC temperature controller, 8 is heat-conducting silicone grease, and 9 is steam (vapor) outlet, and 31 is water tank, 32 is water, and 33 is float, and 34 is water yield check-out console, 35 is water pipe, and 36 is water pump, and 40 is controller, 41 is power supply, and 44 for being positioned at the water of water containing chamber, and 46 is steam.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

Referring to Fig. 1-Fig. 6, this steam raising plant, comprise steam generator, this steam generator comprises water containing chamber and PTC heater 1, protecgulum 2 and bonnet 4 surround water containing chamber jointly, PTC heater 1 is arranged on the outer surface of protecgulum 2, on protecgulum 2, is provided with water inlet 5, on bonnet 4, is provided with steam (vapor) outlet 9.

In the present embodiment, between PTC heater 1 and protecgulum 2, be provided with heat-conducting silicone grease layer 8.

On protecgulum 2, also be provided for the socket 6 of plug-in mounting NTC temperature controller 7.

When practical operation, PTC heater 1 can be installed on the outer surface of protecgulum 2 by screw, so that mounting or dismounting.

Steam raising plant also comprises water tank 31, float 33, water yield check-out console 34, water pipe 35, water pump 36, controller 40 and power supply 41, wherein, float 33 is arranged in water tank 31, water yield check-out console 34 is attached on water tank 31, water yield check-out console 34 is electrically connected to controller 40, water tank 31 communicates with water inlet 5 by water pipe 35, water pump 36 is serially connected in water pipe 35, controller 40 is electrically connected to power supply 41, controller 40 is electrically connected to water pump 36, NTC temperature controller 7 is electrically connected to controller 40, and controller 40 is electrically connected to PTC heater 1.

The method of operating of steam raising plant comprises the following steps:

Step 1, the power supply 41 that switches on power,

Step 2, start controller 40, sets the working time,

Step 3, the water yield by float 33 and water yield check-out console 34 detect in water tank 31, detect complete rear timing and start,

Step 4, when in water tank 31, water being arranged, enter step 5; When in water tank 31, there is no water, enter step 11,

Step 5, by the operating temperature t of NTC temperature controller 7 detection PTC heaters 1,

Step 6, when 0 ℃<operating temperature t≤125 ℃, enter step 7, when 125 ℃≤operating temperature t, enters step 10,

Step 7, start PTC heater 1 and heat, and enters step 8,

Step 8, when the working time finishes, enter step 9; When the working time does not finish, enter step 5,

Step 9, detect and heating all stops,

Step 10, water pump 36 pump water, enter step 3,

Step 11, prompting water tank 31 adds water, and time out, enter step 3.

For above-mentioned step, can sketch and be: restarting controller after the startup power supply, the necessary topped up with water of water tank this moment, after float 33 and 34 detections of water yield check-out console, feed back to controller, as water tank, do not have water to point out and please add water, when water was arranged, program detected PTC heater temperature by the NTC temperature controller again when feedback information.

At this moment, two kinds of situations are arranged.

The first is: when detected temperatures >=125 ℃, water pump starts pump water, and temperature controller does not stop to detect whether<125 ℃ of the temperature of PTC pyrotoxin, is to stop pump water, no with regard to pump water to temperature, lower till.When temperature lowered, controller again detected water tank and whether also has water, when water tank has water to provide, does not add water, as water tank, had water to start the heating of PTC heater.

The second is: when detected temperatures<125 ℃, start the heating of PTC heater, in heating time,, the NTC temperature controller do not stop detected temperatures, and when detected temperatures >=125 ℃, water pump starts pump water, water passes through pump working the water inlet of water pump to steam generator from water tank, water enters in the water containing chamber that is comprised of protecgulum and bonnet, because the PTC heater heats >=125 ℃ to steam generator, at this moment, water moment of being heated turns to a large amount of steam, and steam is discharged by steam (vapor) outlet; While due to aquation, being steam, take away the heat of the PTC heater on steam generator, temperature rises to again >=125 ℃ the time, water pump starts pump water, at this moment, temperature controller does not stop to detect whether<125 ℃ of the temperature of PTC heater, be to stop pump water, circulation is until the working time of setting finishes or prompting does not have water thus.

Claims (5)

1. steam raising plant, comprise steam generator, this steam generator comprises water containing chamber and PTC heater (1), it is characterized in that protecgulum (2) and bonnet (4) surround water containing chamber jointly, PTC heater (1) is arranged on the outer surface of protecgulum (2), on protecgulum (2), be provided with water inlet (5), on bonnet (4), be provided with steam (vapor) outlet (9).

2. steam raising plant according to claim 1, is characterized in that being provided with heat-conducting silicone grease layer (8) between described PTC heater (1) and protecgulum (2).

3. steam raising plant according to claim 1 and 2, is characterized in that also being provided on described protecgulum (2) socket (6) of plug-in mounting NTC temperature controller (7).

4. steam raising plant according to claim 3, it is characterized in that also comprising water tank (31), float (33), water yield check-out console (34), water pipe (35), water pump (36), controller (40) and power supply (41), wherein, float (33) is arranged in water tank (31), water yield check-out console (34) is attached on water tank (31), water yield check-out console (34) is electrically connected to controller (40), water tank (31) communicates with water inlet (5) by water pipe (35), water pump (36) is serially connected in water pipe (35), controller (40) is electrically connected to power supply (41), controller (40) is electrically connected to water pump (36), NTC temperature controller (7) is electrically connected to controller (40), controller (40) is electrically connected to PTC heater (1).

5. the method for operating of a steam raising plant as claimed in claim 1 is characterized in that comprising the following steps:

Step 1, the power supply that switches on power (41),

Step 2, start controller (40), sets the working time,

Step 3, detect the water yield in water tank (31) by float (33) and water yield check-out console (34), and detect complete rear timing and start,

Step 4, when in water tank (31), water being arranged, enter step 5; When in water tank (31), there is no water, enter step 11,

Step 5, by the operating temperature t of NTC temperature controller (7) detection PTC heater (1),

Step 6, when 0 ℃<operating temperature t≤125 ℃, enter step 7, when 125 ℃≤operating temperature t, enters step 10,

Step 7, start PTC heater (1) and heat, and enters step 8,

Step 8, when the working time finishes, enter step 9; When the working time does not finish, enter step 5,

Step 9, detect and heating all stops,

Step 10, water pump (36) pump water, enter step 3,

Step 11, prompting water tank (31) adds water, and time out, enter step 3.

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