Patent Application
20130284122
The present invention relates to an automatic water supply-type steam generator using a vapor pressure which makes it possible to generate the optimum vacuum pressure in the interior of a pressurization water supply tank using a vapor pressure and to continuously generate necessary steam while reliably supplying water to the pressurization water supply tank with the aid of a strong suction force which is generated by the vacuum pressure.
A steam generator is configured in such a way that a water level detection sensor detecting the level of water is installed in a steam tank which helps generate and store steam by boiling water using various energy source (heater, waste heat, etc.). When the water level lowers and the water level in the steam tank reaches a set minimum water level, the water level detection sensor detects such state, and a water supply control valve installed at a water supply tube automatically opens, so water can be supplied to the steam tank.
The above mentioned conventional steam generator needs an additional electric motor pump so as to supply new water to the steam tank unless water is supplied with a natural pressure based on an elevation difference between upper and lower positions because the water supply tank is provided at the top of the steam tank.
Since the interior of the steam tank maintains a high pressure itself, even when the water supply tank is provided at the top, water supply is not reliably performed. So as to overcome the above mentioned problems, it needs to install a motor pump with a large capacity, which is costly in installing related facilities, and it entails more electric power for the sake of a start and operations of a motor pump, so it is hard to obtain a high energy efficiency and operation performance, and the maintenance of such facilities is disadvantageously costly.
Therefore, it urgently needs to develop a technology of generating the optimum vacuum pressure in the interior of the pressurization water supply tank using a vapor pressure and of reliably supplying water to the pressurization water supply tank with a strong suction force generated by the vacuum pressure.
Accordingly, it is an object of the present invention to provide an automatic water supply-type steam generator using a vapor pressure which makes it possible to adjust a vacuum pressure in the optimum state by introducing a proper amount of external air from the air through an air vent when generating a vacuum pressure in the interior of the pressurization water supply tank.
It is another object of the present invention to provide an automatic water supply-type steam generator using a vapor pressure which makes it possible to adjust the vacuum pressure in the optimum state by adjusting a vacuum pressure generation time in the interior of the pressurization water supply tank.
To achieve the above objects, there is provided an automatic water supply-type steam generator using a vapor pressure in which a condensation water collection tank configured to collect spent steam is connected to a pressurization water supply tank through a water supplement tube in which a water supplement control valve is installed, and the pressurization water supply tank is connected to a steam generator through a vapor pressure supply tube in which a pressure supply control valve is installed, and the pressurization water supply tank is connected to a steam generator or a portion where a supplied water is actually used, through a water supply tube in which a water supply control valve is installed. An air vent with a vacuum pressure adjustment valve is branched and installed at the water supplement tube.
In addition, a coolant spray tube configured to spray coolant into the interior of the pressurization water supply tank is connected to the interior of the pressurization water supply tank.
The present invention ensures a generation of vacuum pressure in the interior of a pressurization water supply tank using vapor pressure for thereby sucking water from a condensation water collection tank using a strong suction force generating thanks to the vacuum pressure and automatically supplementing into the pressurization water supply tank and reliably supplying the water from the pressurization water supply tank to the steam generator, so it is possible to continuously and effectively supply necessary vapor.
In addition, even though the above mentioned effects are obtained, various kinds of large capacity pumps are not necessary like the conventional art, so the costs for related facilities can be considerably saved, and unnecessary power consumption required for the above mentioned operations can be avoided in the present invention, which results in enhancing the efficiency and operation performance of energy, and maintenance costs can be saved.
In addition, the problems of the conventional art which used to happen as the vacuum pressure is applied even into the interior of the steam tank can be completely overcome in the present invention in such a way to freely adjust the vacuum pressure forming in the interior of the pressurization water supply tank, thus maintaining a constant level of vacuum.
The whole technical construction according to a preferred embodiment of the present invention will be described in details. There are provided a condensation water collection tank 20 which collects spent steam; a pressurization water supply tank 30 which is installed through the condensation water collection tank 20 and a water supplement tube 21; a vapor pressure supply tube 40 connected between the pressurization water supply tank 30 and a steam generator 10; a water supply tube 50 which is connected either between the pressurization water supply tank 30 and the steam generator 10; a water supplement control valve 60 installed at a pipe conduit of the water supplement tube 21; a pressure supply control valve 70 which is installed at a pipe conduit of the vapor pressure supply tube 40; a water supply control valve 80 which is installed at a pipe conduit of the water supply tube 50; and an air vent 90 which is branched and installed at the water supplement tube 21 so as to adjust an internal vacuum pressure of the pressurization water supply tank 30 and which has a vacuum pressure adjusting valve 95 which is installed at a pipe conduit. All the above described elements are organically connected.
In addition, a coolant spray tube 90 is organically engaged and connected to the interior at the top of the pressurization water supply tank 30, the coolant spray tube 90 being configured to automatically spray coolant when the vapor pressure full in a vapor layer 31 of the pressurization water supply tank 30 is all discharged to the condensation water collection tank 20.
The steam generator 10 according to the present invention serves to generate and store vapor by boiling water using various energy sources such as a direct energy from a heater installed in the interior and an energy from a waste heat or a power plant which energy is generally discarded.
Once the vapor generating from the steam generator 10 is used for various purposes, the spent vapor is all collected into the condensation water collection tank 20, thus minimizing the loss of energy. The condensation water collection tank 20 is connected to the pressurization water supply tank 30 through the water supply tube 21 for thereby supplementing the condensation water of the condensation water collection tank 20 to the pressurization water supply tank 30. A water supply pipe 22 with a level regulating valve 22a is connected to the interior so that condensation water can be supplemented, as much as the amount of vapor which naturally vaporize, to the condensation water collection tank 20.
As shown in
The present invention has features in that part of the vapor pressure stored in the steam generator 10 is supplied to the pressurization water supply tank 30, so the internal pressure of the steam generator 10 becomes identical with the internal pressure of the pressurization water supply tank 30 for thereby more efficiently and effectively supplying the water stored in the pressurization water supply tank 30 to the steam generator 10, as a result of which additional large capacity pumps are not necessary in the above procedures.
At a pipe passage of the water supplement tube 21 is installed a water supplement control valve 60, and at a pipe passage of the vapor pressure supply tube 40 is installed a pressure supply control valve 70, and at a pipe passage of the water supply tube 50 is installed a water supply control valve 80, so that each flow passage can be automatically turned on or off depending on a selective operation of the controller, which consequently provides convenience when in use.
As shown in
As shown in
As shown in
As shown in
The reasons why the plurality of the nozzle holes 21a, 24a and 26a are formed are to release the discharge of the fast increasing vapor pressure so as to prevent noises which occur as water fluctuates while high vapor pressure is discharged to the condensation water collection tank 20. Since the vapor pressure is uniformly distributed over the whole widthwise portions of the condensation water collection tank 20 through the small nozzle holes 21a, 24a and 26a and is discharged, the water rolling can be minimized, which results in reduces noises, while effectively preventing overflow of water to the outside.
In the present invention, as one solution of overcoming the problems in which vacuum pressure resides even after enough water is sucked and supplemented from the condensation water collection tank 20 since the vacuum pressure generating in the pressurization water supply tank 30 is too strong, the air vent 90 is installed at the water supplement tube 21 in a branched state, and as a technical construction, a vacuum pressure adjusting valve 95 is installed at the pipe passage of the air vent 90.
The air vent 90 serves to discharge part of the vapor pressure to the outside while the vapor pressure filled in the steam layer 31 of the pressurization water supply tank 30 is discharged to the condensation water collection tank 20 through the water supplement tube 21 and also serves to introduce the air from the outside when a vacuum pressure occurs in the interior of the pressurization water supply tank 30 for thereby lowering the vacuum pressure, so a proper vacuum degree can be maintained.
In addition, the vacuum pressure adjusting valve 95 helps freely adjust the degree of vacuum in such a way to adjust the input amount of air depending on the operation of its opening and closing degree.
Though the air vent 90 is installed at the pipe passage of the water supplement tube 21, but its installation position is substantially not limited. In the present invention, it is installed at a pipe passage of the water supplement tube 21 provided in the interior of the condensation water collection tank 20, so the vapor pressure discharging through the air vent 90 is not discarded into the air, but is naturally collected into the interior of the condensation water collection tank 20 for thereby avoiding the loss of energy. In particular, an air inlet port 91 formed at the top of the air vent 90 is exposed into an atmospheric layer 20a in the interior of the condensation water collection tank 20, so it is possible to reliably introduce the air from the atmospheric layer 20a when vacuum pressure occurs in the interior of the pressurization water supply tank 30.
In the present invention, it is possible to further reduce time for which the vacuum pressure generates in the interior of the pressurization water supply tank 30 for thereby implementing a fast supply of supplemental water. As shown in
Therefore, when the vapor pressure filled in the steam layer 31 of the pressurization water supply tank 30 is all discharged to the condensation water collection tank 20, the spray nozzles 99 of the coolant spray tube 98 automatically spray coolants, so liquidation is accelerated, and it is possible to effectively and considerably reduce time for which vacuum pressure generates.
As another method of more reducing time for which vacuum pressure generates in the interior of the pressurization water supply tank 30 in the present invention, instead of the coolant spray tube 98, as shown in
The present invention has features in that the pressurization water supply tank 30, as shown in
In addition, as shown in
The present invention with the above described constructions has features in that part of the vapor pressure is supplied to the pressurization water supply tank 30, the water filled in the pressurization water supply tank 30 can be reliably supplied to the steam generator 10, and for this when the water level of the pressurization water supply tank 30 lowers, the water is immediately supplemented from the condensation water collection tank 20.
For this, when the water supplement control valve 60 installed at the water supplement tube 21 is temporarily opened, the high vapor pressure filled in the steam layer 31 of the pressurization water supply tank 30 is directly discharged to the condensation water collection tank 20 through the water supplement tube 21 or as shown in
As the high vapor pressure is discharge, the temperature of the condensation water collection tank 20 increases, whereas the temperature of the steam layer 31 of the pressurization water supply tank 30 decreases, which consequently causes a liquidation phenomenon, during which liquidation procedure a high vacuum pressure occurs.
The water of the condensation water collection tank 20 may be directly sucked by means of a strong function force generating owing to the above mentioned vacuum pressure or may be sucked through the nozzle holes 21a formed at the water supplement tube 21 or may be sucked through additional discharge and suction headers 24 and 26, so the water can be automatically supplemented into the pressurization water supply tank 30.
In the present invention, when the vapor pressure filled in the steam layer 31 of the pressurization water supply tank 30 is all discharged to the condensation water collection tank 20, the spray nozzles 91 of the coolant spray tube 90 automatically spray coolant for thereby accelerating liquidation, so it is possible to effectively and considerably adjust time for which vacuum pressure occurs.
When the water of the pressurization water supply tank 30 reaches the set highest level, the water supplement control valve 60 is automatically closed, so the supply of the water supplement is stopped.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2010-0136553 | Dec 2010 | KR | national |
| 10-2011-0014264 | Feb 2011 | KR | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/KR2011/010266 | 12/28/2011 | WO | 00 | 6/28/2013 |
