JPH0732304U - Small pure steam generator - Google Patents

Abstract

(57) [Summary] [Purpose] For the purpose of easily transporting pure steam from a place requiring pure steam to another place in a hospital or factory, and connecting the power cord to obtain pure steam. There is. [Structure] Evaporator with built-in electric heater, pure water tank for storing pure water supplied in advance, feed water pump for supplying pure water in the pure water tank to the evaporator, and inside the evaporator can A level switch that keeps the pure water at a constant level, and a blow water tank that is integrally formed under the pure water tank to store blow water discharged from the level switch,
On the trolley with the outlet for pure steam generated in the evaporator
It is a small pure steam generator characterized by being installed as a unit.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a small-sized pure steam generator that can be easily transported from one place requiring pure steam to another place in a hospital or factory, and can be obtained by simply connecting a cord to a power source.

[0002]

[Prior art]

 Conventionally, steam pipes have been installed in the walls of hospitals and factories, and hoses have been connected to the outlets of each room to obtain the required steam. However, in that case, not only was the equipment expensive, but it was difficult to obtain high-temperature pure steam easily.

[0003]

[The purpose of the device]

 The purpose of the present invention is to easily carry pure steam from one place requiring pure steam to another place in a hospital or factory so that pure steam can be obtained simply by connecting a cord to a power source.

[0004]

[Constitution of device]

 The present invention is an evaporator with a built-in electric heater, a pure water tank for storing pure water supplied in advance, a supply water pump for supplying the pure water in the pure water tank to the evaporator, and the inside of the evaporator The level switch that keeps the pure water at a certain level, the blow water tank that is integrally formed under the pure water tank to store the blow water discharged from the level switch, and the pure steam generated in the evaporator It is a small-sized pure steam generator characterized in that it is mounted on the trolley as one unit.

[0005]

【Example】

 The evaporator 1 in FIG. 1 has an electric heater 2 (for example, 9 KW) built therein, and contains pure water 3 up to level L1. The electric heater 2 is connected to a long cord 4, and the cord 4 has a connector 5 at its tip. The pure water tank 7 (for example, 36 liters) is provided with a pure water outlet 8, a liquid level gauge 9, an air drainer 10, a level switch 11, and a feed water (pure water) inlet 12, and the pure water 13 is put therein to a level L2. is there. The above-mentioned evaporator 1 and pure water tank 7 are mounted as one unit on a hand-held cart 14 with casters, and the cart 14 is carried to a place having a storage tank (not shown) storing a large amount of pure water. , Connect the water supply hose to the valve 15 connected to the inlet 12, open the valve 15, and connect the connector 5 to the power source to the evaporator 1 to a predetermined level L1 and to the pure water tank 7 to a predetermined level. Pure water 13 can be supplied up to L2. A pipe 17 is connected to the deionized water outlet 8, and the pipe 17 is supplied from the deionized water outlet 8 side in order of a supply water pump 18 (for example, 0.2 kW), a flow meter 19, a pressure gauge 20, a solenoid valve 21, and a check valve 22. And the tip is connected to the pure water inlet 23 of the evaporator 1.

A steam outlet 24, which opens upward at the upper end of the steam chamber 25 at the top of the evaporator 1, is connected to a valve 28 of a pure steam outlet 27 through a pipe 26. From the outlet 27, for example, 10 kg / h × 1.7 kg / cm ² of product (pure steam) can be taken out. The pressure detection port 30 on the upper side wall of the steam chamber 25 is connected to a controller 33 that keeps the pressure constant via a signal path 32 having a pressure transmitter 31 (sensor), and the output terminal of the controller 33 is located in the middle of the thyristor. It is connected to the electric heater 2 via a signal path 35 having 34. When the pressure in the steam chamber 25 exceeds a predetermined value, the calorific value of the electric heater 2 decreases due to the output from the controller 33, and when the pressure decreases below the predetermined value, the calorific value of the electric heater 2 due to the output. Is increased, and thus the pressure in the steam chamber 25 is maintained within a predetermined range. The temperature detection port 36 at a position slightly lower than the level L1 is connected to the temperature controller 38 via the signal path 29 having the thermocouple 37, and the output terminal of the temperature controller 38 is connected to the electric heater 2 via the signal path 39. Connected. When the temperature of the pure water 3 rises above a predetermined value, the amount of heat generated by the electric heater 2 decreases due to the output from the temperature controller 38, and when the temperature falls below a predetermined value, the heat generated by the electric heater 2 occurs due to the output from the temperature controller 38. The amount is increased, and thus the temperature of the pure water 3 is maintained within the predetermined range.

The steam inlet 42 on the side wall above the level L 1 of the level switch 41 is connected to the steam chamber 25 via a pipe 43, and the pure water inlet 44 at the lower end is connected to the bottom of the evaporator 1 via a pipe 45. Then, the feed water pump 18 and the solenoid valve 21 are connected via the signal path 46, and when the level L1 increases above a predetermined value, the output from the level switch 41 reduces the discharge amount of the feed water pump 18 and the solenoid valve 21. When the level L1 of the deionized water 3 also decreases and the level L1 decreases below a predetermined value, the output of the level switch 41 increases the discharge amount of the feed water pump 18 and the opening of the solenoid valve 21 also increases. Is kept within a predetermined range. A pipe 48 is connected to the blow water outlet 47 at a position lower than the level L1 of the level switch 41, and the pipe 48 is provided with an orifice 49 and a solenoid valve 50 for sequentially blowing a fixed amount from the blow water outlet 47 side, and a tip end. Is connected to a blow water inlet 53 on the side wall of a blow water tank 52 (for example, 8 liters) integrally provided below the pure water tank 7 with a partition wall 51 therebetween. 40 is without air. The blow water outlet 54 at the bottom of the blow water tank 52 is connected to a valve 57 of a blow water discharge port 56 via a pipe 55. A pipe 59 having an electromagnetic valve 58 is connected to the valve 57 in the middle of the pipe 17, and a blow water outlet 60 at the bottom of the evaporator 1 is connected to a pipe 62 having an electromagnetic valve 61.

The connector 5 is connected to a power source, pure water is supplied from the portion of the valve 15 to the illustrated state (levels L1 and L2), the pure water supply pipe and the connector 5 are disconnected, and pure steam is required. When the carriage 14 is carried to the target room and the connector 5 is connected to the power supply of the room, the device starts operating, and the pure steam in the steam room 25 can be taken out from the outlet 27 and used. The pure water in the level switch 41 is constantly blown (discharged) through the orifice 49 and accumulated in the blow water tank 52 to maintain the purity of the product. When the work is completed, the valve 57 and the solenoid valves 58 and 61 are opened, all the pure water remaining is discharged, and the connector 5 is removed.

[0009]

[Effect of device]

 According to the present invention, since the device is unitized on the carriage 14, it is easy to carry. Moreover, in the target room or the like, it can be operated simply by connecting the connector 5 to the power source, and an appropriate amount of blow water can be accumulated in the blow water tank 52 to ensure the purity of the product. Since the blow water tank 52 is integrally provided at the bottom of the pure water tank 7, the apparatus is compactly assembled and the air can be easily removed.

[Brief description of drawings]

FIG. 1 is a layout view showing an overall structure of an apparatus.

[Explanation of symbols]

 1 Evaporator 2 Electric heater 3 Pure water 7 Pure water tank 13 Pure water 14 Cart 18 Feed water pump 27 Outlet 41 Level switch 52 Blow water tank

Claims (1)

[Scope of utility model registration request] 1. An evaporator containing an electric heater, a pure water tank for storing pure water supplied in advance, a feed water pump for supplying the pure water in the pure water tank to the evaporator, and the evaporator. The level switch that keeps the pure water in the can at a certain level, the blow water tank that is integrally formed under the pure water tank to store the blow water discharged from the level switch, and the evaporation can A small-sized pure steam generator characterized in that a pure steam outlet and a single unit are mounted on a trolley.