KR200490486Y1 - Steam generator - Google Patents

Abstract

A steam generator is started. The steam generator is connected to the water tank, the pressure tank, the pump for supplying the water of the tank to the pressure tank, and inserted into the pressure tank, and is connected to the heater for heating the water and the pressure tank. The discharge port is discharged, mounted in the upper portion of the pressure tank, the pressure control valve is opened when the pressure in the pressure tank rises above the first predetermined reference value, the first pressure sensor and the second pressure to measure the pressure in the pressure tank When the pressure measured by the sensor, the first pressure sensor exceeds a second predetermined reference value, and includes a control unit for stopping the operation of the heater, the control unit is a failure occurs in the first pressure sensor, the pressure inside the pressure tank It is not detected that the second reference value is exceeded, and the pressure inside the pressure tank is greater than the third reference value set higher than the second reference value through the second pressure sensor. When grounded, thereby stopping the operation of the heater.

Description

Steam generator

The present invention relates to a steam generator.

Steam is used in various fields, and is used for beauty management in beauty salons and skin care rooms, and the utilization of steam is high, such as being used for humidifying indoors in hospitals. In addition, steam is used for cleaning, and is used for cleaning vehicles, disinfecting and killing indoor sofas, beds, and the like.

In particular, the steam cleaner is used for cleaning in various places, such as homes and workplaces, the size and shape of the steam cleaner is also made to suit a variety of places.

In general, the steam generator of the steam cleaner generates steam using a boiler type heating method. That is, in the boiler type heating method, a heater is provided in the water tank, and the heater heats the water in the water tank so that the temperature of the water rises and finally steam is generated. It is discharged.

As the steam generator generates steam, the pressure inside the water tank increases, so it is essential to control the pressure inside the water tank. That is, the steam generator should be controlled so that the pressure inside the water tank is lowered when the pressure inside the water tank due to steam rises above the reference value. The water tank is usually manufactured by welding a metal material. If the pressure inside the water tank due to steam rises above the pressure that the water tank can withstand, there is a danger of the water tank exploding due to the welding area being broken. .

The present invention is to provide a steam generator that stably regulates the pressure inside the tank in which steam is generated, and prevents explosion of the tank in which steam is generated.

According to one aspect of the present invention, a steam generator is disclosed.

Steam generator according to an embodiment of the present invention, a water tank, a pressure tank, a pump for supplying the water of the water tank to the pressure tank, is inserted through the pressure tank is mounted, the heater for heating the water, the pressure tank Connected to the outlet for discharging steam and hot water generated according to the heating, mounted on an upper portion of the pressure tank, and a pressure regulating valve that is opened when the pressure inside the pressure tank rises above a first predetermined reference value; A first pressure sensor and a second pressure sensor for measuring a pressure in the pressure tank, and a controller for stopping the operation of the heater when the pressure measured by the first pressure sensor exceeds a preset second reference value. The controller may not detect that a failure occurs in the first pressure sensor so that the pressure inside the pressure tank exceeds the second reference value. 2, to stop the operation of the heater when the pressure to the pressure inside the tank through the pressure sensor exceeds a third reference value set higher than the second reference value is detected.

The pressure tank is formed by welding the cover on both ends of the tube, the welding is made in the contact portion of the tube and the cover, the cover is inserted into the predetermined depth from the end of the tube to the inside. Secondary welding, secondary welding made between the inner side of the tube and the outer side of the cover, and a tertiary welding welding the reinforcing member in a state where the reinforcing member having a L-shape is contacted from the outer side of the tube to the cover side. .

It is arranged in parallel to one side of the pressure tank is connected to the pressure tank, the water supply pipe filled with water at the same level as the inside of the pressure tank, mounted on the water supply pipe for detecting a predetermined minimum level of the pressure tank And a second water level sensor mounted on the first water level sensor and the water supply pipe to detect a preset maximum water level of the pressure tank, wherein the controller operates the pump when the minimum water level is sensed to provide water to the pressure tank. It is controlled to be supplied, and the operation of the pump is stopped when the maximum water level is detected.

A water supply pipe for receiving water is formed on one side of the water tank, and a water supply control valve is provided at the end of the water supply pipe to open and close according to the water level of the water tank using a buoyancy body.

According to another aspect of the present invention, a steam generator is disclosed.

Steam generator according to an embodiment of the present invention, a water tank, a pressure tank, a pump for supplying the water of the water tank to the pressure tank, is inserted through the pressure tank is mounted, the heater for heating the water and the pressure tank And a discharge port for discharging steam and hot water generated by the heating, wherein the pressure tank is formed by welding a cover to both ends of the pipe, and the welding is performed by the cover from the end of the pipe to the inside. In the inserted state by a predetermined depth, the primary welding made to the contact portion of the tube and the cover, the secondary welding made between the inner side of the tube and the outer side of the cover and the reinforcing member of the L-shape at the outside of the tube In the state in contact with the cover side, includes a third welding welding the reinforcing member.

Steam generator according to an embodiment of the present invention, it is possible to stably adjust the pressure in the tank in which the steam is generated, it is possible to prevent the explosion of the tank in which the steam is generated.

1 is a view schematically showing a configuration of a steam generator according to an embodiment of the present invention.
2 is a view showing in more detail the configuration of the steam generator according to an embodiment of the present invention.
3 to 6 are views for explaining each configuration of the steam generator according to an embodiment of the present invention.

As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise. In this specification, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or some steps It should be construed that it may not be included or may further include additional components or steps. In addition, the terms "... unit", "module", etc. described in the specification mean a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software. .

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a configuration of a steam generator according to an embodiment of the present invention, Figure 2 is a view showing in detail the configuration of the steam generator according to an embodiment of the present invention, Figures 3 to 6 A diagram for describing each configuration of the steam generator according to an embodiment of the present invention.

First, referring to FIG. 1, a steam generator according to an embodiment of the present invention includes a water tank 10, a pump 20, a pressure tank 30, and a heater 40.

The water tank 10 is filled with water, and the water filled in the water tank 10 is supplied to the pressure tank 30 by the pump 20. The heater 40 is mounted inside the pressure tank 30 and heats the water introduced into the pressure tank 30. Steam is generated as the water in the pressure tank 30 is heated by the heater 40, and the generated steam is discharged to the outside through a pipe connected to the pressure tank 30.

Hereinafter, the detailed configuration of the steam generator according to the embodiment of the present invention with reference to FIGS. 2 to 5 will be described.

2, the steam generator according to an embodiment of the present invention, the water tank 10, the pump 20, the pressure tank 30, the pressure control valve 31, the pressure sensors 32, 33, the water supply pipe ( 34), the heater 40 and the controller 50.

As described above, the pressure tank 30 receives water from the water tank 10 by the pump 20, and the heater 40 mounted in the pressure tank 30 receives water from the pressure tank 30. Heat.

Steam is generated by heating water in the pressure tank 30, and the generated steam is discharged to the outlet 60 through a steam discharge pipe 61 connected to the pressure tank 30. On the other hand, the hot water generated by heating the water in the pressure tank 30 is discharged to the discharge port 60 through the hot water discharge pipe 62 connected to the lower portion of the pressure tank (30). That is, as shown in Figure 2, the steam discharge pipe 61 and the hot water discharge pipe 62 is connected, through which the steam and hot water generated in the pressure tank 30 may be discharged together to the discharge port (60).

For example, the pressure tank 30 may be formed in a cylindrical shape as shown in FIG. That is, the pressure tank 30 may be formed by welding a metal cover on both ends of the metal pipe. Here, the cover has a size and shape corresponding to both ends of the tube, it may be formed to have a curved surface.

In addition, the heater 40 may be formed in a rod shape, and as shown in FIG. 2, a plurality of heaters 40 may be inserted into and inserted into a lower portion of the pressure tank 30.

The pressure regulating valve 31 is mounted on the pressure tank 30 and connected to the inside of the pressure tank 30, and is opened and closed according to the pressure generated by the steam generated inside the pressure tank 30.

For example, the pressure regulating valve 31 is closed, but when the pressure inside the pressure tank 30 rises above the first predetermined reference value, the pressure control valve 31 is opened, whereby the steam inside the pressure tank 30 is externally opened. To be discharged to the pressure inside the pressure tank 30 may be reduced.

The pressure sensors 32 and 33 measure the pressure inside the pressure tank 30, and as shown in FIG. 2, two may be mounted.

That is, the first pressure sensor 32 may be used to determine whether the pressure in the pressure tank 30 exceeds a preset second reference value, and the second pressure sensor 33 may be used in the pressure tank 30. It may be used to determine whether the pressure exceeds the third preset threshold. Here, the third reference value is set higher than the second reference value.

In addition, the first reference value and the second reference value may be set to be the same.

For example, assuming that the second reference value is set to 10 bar, the third reference value may be set to 12 bar which is 20% larger than the second reference value.

The reason why the second pressure sensor 33 is added and used in this manner is to prepare for the case where the first pressure sensor 32 fails, and thus the pressure inside the pressure tank 30 can be adjusted more stably. Can be. Control thereof is performed by the controller 50 to be described later.

Water pipe 34 is disposed in parallel to one side of the pressure tank 30 is connected to the pressure tank 30, the water is filled at the same level as the pressure tank (30). The water level of the pressure tank 30 can be measured using this water pipe 34.

Referring to FIG. 3, the water pipe 34 may be equipped with two electrode type level sensors 35 and 36 having different lengths. That is, the first water level sensor 35 may have a electrode rod longer than the second water level sensor 36 to detect a predetermined minimum level. In addition, the second water level sensor 36 may have a shorter electrode than the first water level sensor 35 to detect a preset maximum water level.

According to the present embodiment, the water supply pipe 34 for measuring the water level is installed on the side of the pressure tank 30, when steam is generated inside the pressure tank 30, the water surface wave due to the phenomenon of boiling water This is because it is difficult to accurately measure the water level.

The controller 50 controls the operation of the heater 40 in accordance with the pressure in the pressure tank 30 measured by the first pressure sensor 32 and the second pressure sensor 33, thereby internalizing the pressure tank 30. The pressure can be adjusted.

That is, the controller 50 determines whether the pressure in the pressure tank 30 measured by the first pressure sensor 32 exceeds the second reference value, and if so, stops the operation of the heater 40. The pressure inside the pressure tank 30 can be lowered. Thereafter, the controller 50 may resume the operation of the heater 40 when the pressure in the pressure tank 30 decreases below the second reference value.

If a failure occurs in the first pressure sensor 32, it is not sensed that the pressure inside the pressure tank 30 exceeds the second reference value, and the inside of the pressure tank 30 through the second pressure sensor 33. It can be sensed that the pressure of s exceeds the third reference value set higher than the second reference value.

In such a case, when the pressure in the pressure tank 30 measured by the second pressure sensor 33 exceeds the third reference value, the controller 50 stops the operation of the heater 40 to press the pressure tank 30. Internal pressure can be lowered. Thereafter, the controller 50 may resume the operation of the heater 40 when the pressure in the pressure tank 30 decreases below the third reference value.

Through such control, even when the first pressure sensor 32 fails, the pressure inside the pressure tank 30 may be adjusted using the second pressure sensor 33.

As such, the steam generator according to the embodiment of the present invention includes a triple safety device using the pressure regulating valve 31, the first pressure sensor 32, and the second pressure sensor 33, thereby providing a pressure tank 30. Can prevent explosion. That is, in the steam generator according to the embodiment of the present invention, when the pressure in the pressure tank 30 rises above the first reference value, the first step in which the pressure regulating valve 31 is opened, the pressure in the pressure tank 30 is increased. Safety of the second stage when the operation of the heater 40 is stopped when rising above the second reference value and the third stage of stopping the operation of the heater 40 when the pressure inside the pressure tank 30 rises above the third reference value The device may be provided.

The control unit 50 detects the minimum and maximum water level of the pressure tank 30 by using the first water level sensor 35 and the second water level sensor 36 provided in the water supply pipe 34, Accordingly, the level of the pressure tank 30 is controlled by controlling the operation of the pump 20.

That is, the controller 50 may operate the pump 20 when the minimum water level is detected through the first water level sensor 35 to control the water of the water tank 10 to be supplied to the pressure tank 30. In addition, the controller 50 stops the operation of the pump 20 when the maximum water level is sensed through the second water level sensor 36, and controls the water supply of the water tank 10 to be stopped from being supplied to the pressure tank 30. can do.

Referring to FIG. 4, a water supply pipe 11 for receiving water is formed at one side of the water tank 10, and water supply is opened and closed according to the water level of the water tank 10 by using a buoyancy body at the end of the water supply pipe 11. A control valve 12 is provided.

That is, the water supply control valve 12 is a float-type valve for blocking the water supply pipe 11 by the buoyancy of the water supplied into the water tank 10 through the water supply pipe 11, as shown in FIG. Can be

Meanwhile, as illustrated in FIG. 4, the water tank 10 may also include a water level sensor 15. For example, the length of the electrode of the water tank level sensor 15 may be set to detect the minimum water level of the water tank 10. When the minimum level of the tank 10 is detected by the tank level sensor 15, the controller 50 may display a signal or a message indicating that the tank 10 is the minimum level, respectively, as an alarm device (not shown) or a display device ( It may be output through (not shown).

As described above, the steam generator according to the embodiment of the present invention may be provided with a triple safety device to prevent the explosion of the pressure tank (30).

In addition, the pressure tank 30 according to the embodiment of the present invention may be manufactured as shown in FIG. 5 so as to be rigid to prevent explosion.

5 shows a manufacturing process of the pressure tank 30 through the cross section of the pressure tank 30. Hereinafter, a manufacturing process of the pressure tank 30 according to the embodiment of the present invention will be described with reference to FIG. 5.

As described above, the pressure tank 30 may be formed by welding the cover 38 to both ends of the metal tube 37. In the pressure tank 30 according to the embodiment of the present invention, the pipe 37 and the cover 38 may be formed by welding a total of three times.

In a first step, the primary welding 1 is made at the contact between the tube 37 and the lid 38 with the lid 38 inserted at a predetermined depth into the interior from the end of the tube 37.

Preferably, the cover 38 may be inserted 10 cm at the top of the tube 37.

In a second step, the secondary welding 2 is made between the inside of the tube 37 and the outside of the lid 38. In this case, as shown in FIG. 5, the secondary welding 2 may be performed to the end of the tube 37 after the contact portion between the tube 37 and the cover 38 on which the primary welding 1 is made. .

In the third step, in contact with the tube 37 and the cover 38 and the reinforcing member 39 in a state where the reinforcing member 39 of the L-shape is brought into contact with the cover 38 from the outside of the tube 37. The secondary welding 3 is made.

For example, the reinforcing member 39 may be made of the same metal material as that of the tube 37 and the cover 38, and as shown in FIG. 6, a preset portion of the contact portion between the tube 37 and the cover 38 is set. It can be placed and welded at four points. Preferably, the four reinforcing members 39 may be arranged to be symmetrical from side to side and welded.

This three welding can be made for each of both ends of the tube 37, but only for one end of the tube 37 corresponding to the upper portion of the pressure tank 30, corresponding to the lower portion of the pressure tank 30 The other end of the pipe 37 may be made only up to the primary welding. That is, as shown in FIG. 5, the cover 38 having a curved surface is coupled to the upper portion of the pressure tank 30 in a convex shape, but the cover 38 is coupled to the lower portion of the pressure tank 30 in a concave shape. Only the primary weld 1 to the contact site of the tube 37 and the cover 38 can be made.

For this reason, if the cover 38 is not able to withstand the pressure inside the pressure tank 30 and the cover 38 is separated from the pipe 37, the cover 38 on the upper portion of the pressure tank 30 may scatter and cause damage to the surroundings. However, since the cover 38 in the lower portion of the pressure tank 30 is toward the ground, there is no fear of scattering.

The embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Should be regarded as falling within the following utility model registration claims.

10: Countertop
20: pump
30: pressure tank
31: pressure regulating valve
32: first pressure sensor
33: second pressure sensor
34: contractor
40: heater
50: control unit
60: outlet

Claims (5)

water tank;
Pressure tank;
A pump for supplying water from the tank to the pressure tank;
A heater inserted and inserted into the pressure tank to heat the water;
A discharge port connected to the pressure tank and discharging steam and hot water generated by the heating;
A pressure regulating valve mounted on an upper portion of the pressure tank and opened when the pressure inside the pressure tank rises above a first predetermined reference value;
A first pressure sensor and a second pressure sensor measuring a pressure in the pressure tank;
If the pressure measured by the first pressure sensor exceeds a second predetermined reference value, including a control unit for stopping the operation of the heater,
The controller does not detect that a failure occurs in the first pressure sensor so that the pressure inside the pressure tank exceeds the second reference value, and the pressure inside the pressure tank is greater than the second reference value through the second pressure sensor. When it is detected that the third reference value is set to be high, the operation of the heater is stopped,
Convex cover having a curved surface is formed on both ends of the pipe located on the upper portion of the pressure tank,
The welding,
Primary welding made to a contact portion of the tube and the cover, with the cover inserted at a predetermined depth from the end of the tube;
Secondary welding made between an inner side of the tube and an outer side of the cover; And
Steam generator characterized in that it comprises a tertiary welding welding the reinforcing member in a state in which the reinforcing member of the L-shape in contact with the cover side from the outside of the tube.
delete The method of claim 1,
A water supply pipe disposed in parallel with one side of the pressure tank and connected to the pressure tank so that water is filled at the same level as the inside of the pressure tank;
A first water level sensor mounted on the water supply pipe to detect a predetermined minimum level of the pressure tank; And
A second water level sensor mounted on the water supply pipe to detect a preset maximum water level of the pressure tank;
The control unit controls the water supply to the pressure tank by operating the pump when the minimum water level is detected, and stops the operation of the pump when the maximum water level is detected.
The method of claim 1,
One side of the water tank is formed with a water supply pipe for receiving water, the steam generator, characterized in that the end of the water supply pipe is provided with a water supply control valve that opens and closes according to the water level of the water tank using a buoyancy body.



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