JPS61254287A - Apparatus for making pure steam and high purity distilled water - Google Patents

Abstract

PURPOSE:To obtain pure steam, by connecting one end of an excessive steam take-out pipe on the way of a steam outlet pipe for supplying pure steam to use facilities and connecting the other end thereof to a condenser for making high purity distilled water. CONSTITUTION:When deionized water is heated in a heater 26, a bumping phenomenon is generated and deionized water is converted to steam and liquid droplets by the rising force of steam to pass through main piping 20 to be sent to the upper chamber 16 of an evaporation boiler 10. Whereupon, a flashing phenomenon is generated in the upper chamber 16 and the liquid is formed into liquid droplets which are, in turn, formed into fine particulate mist while this mist is adhered to the inner surface of the heat transfer pipe 14 of the evaporation boiler 10 to form a thin liquid film easy to evaporate. This steam is flowed in a gas-liquid separator 30 from a lower chamber 18 through a bent pipe 28 and liquid droplets are further removed by the gas-liquid separator 30 to form pure steam which is, in turn, supplied to use facilitied from a steam outlet pipe 32. By this method, pure steam can be effectively utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for producing pure steam and high-purity non-stainless water, which produces both pure steam and high-purity non-stainless water.

(Prior art and its problems) Generally, when manufacturing pharmaceuticals, pharmaceutical manufacturing equipment is cleaned with pure steam to prevent the contamination of impurities, especially pyrogenic substances called pyrogenes. .

In this cleaning process, high-temperature pure steam is circulated inside the equipment, and the inside of the equipment is heated at, for example, 121°C for 30 minutes to decompose and remove bacteria.The pure steam for cleaning is supplied from a pure steam production equipment. It is supposed to be done.

Although such conventional pure steam production equipment requires intermittent amounts of pure steam for the cleaning operations mentioned above,
Since pure steam is produced on a regular basis, there is a problem that the produced pure steam is wasted.

Therefore, the inventor of the present invention focused on the fact that high-purity non-stainless water can be produced by using pure steam when pure steam is not required for cleaning work, and came up with the present invention.

(Objective of the Invention) An object of the present invention is to provide an apparatus for producing pure steam and high-purity ff1l water that can also produce high-purity non-staminated water using surplus pure steam.

(Structure of the invention) (1) Technical means The present invention uses pure steam generated from an evaporator! Connect one end of the excess steam extraction pipe to the middle of the steam outlet pipe that supplies the equipment, and connect the other end of the excess steam extraction pipe to a condenser for producing high-purity distilled water. This is an apparatus for producing pure steam and high-purity non-stainless water, characterized in that it is equipped with an adjustment mechanism that adjusts the amount taken out.

(2) Operation Excess pure steam is supplied to the condenser from the surplus steam extraction pipe, and high-purity non-simmering water is produced from the pure steam while adjusting the amount of excess steam taken out using the adjustment mechanism.

(Example) In FIG. 1, which shows the case where the present invention is applied to an apparatus for producing pure steam and high-purity non-stainless water, 10 is a liquid film falling type evaporator. Evaporator 1 formed vertically and installed vertically
A heat exchanger tube 14 fixed by two tube plates 12 is provided inside the heat exchanger tube 0, and the upper part of the heat exchanger tube 14 is an upper chamber 16, and the lower part thereof is an upper chamber 18.

A main pipe 20 is connected to the upper chamber 16 of the evaporator 10, and high-purity water such as deionized water flows through the main pipe 20. The main pipe 20 includes an automatic valve 22 from the upstream side,
A break heater 24, a heater 26, etc. are installed in sequence, and the deionized water preheated by the break heater 24 is transferred to the heater 26.
It has the function of supplying deionized water to the evaporator 10 using the rising power of the generated steam.

A bent pipe 28 is provided in the chamber 18 of the evaporator 10, and the bent pipe 28 serves as a gas-liquid separator 30 for separating vapor and liquid droplets.
It is connected to the. The steam outlet pipe 32 of the gas-liquid separator 30 is provided with a pressure switch 34a1 and a pressure indicator controller 34b.
It is designed to supply pure steam to other areas.

Further, a blow pipe 36 is connected to the bottom of the gas-liquid separator 30, and has a function of discharging deionized water accumulated in the gas-liquid separator 30 to the outside. The blow pipe 36 is branched into a branch pipe 38 and a branch pipe 40, and the branch pipe 38 is connected to the blow heater 24.
connected to the main pipe 20 between the heater 26 and the heater 26;
Due to the upward force of the generated steam, deionized water is circulated through the branch pipe 38 and supplied to the evaporator 10. The branch pipe 40 is open to discharge a portion of the deionized water via an orifice 42, an automatic valve 44, etc.

The heat source for these evaporator 10, bre-heater 24, and heater 26 is supplied from a main steam pipe 50 having an opening adjustment valve 48 by adjusting the opening of the opening adjustment valve 48 using a signal from a pressure indicating controller 34b. The tube 50 is connected to the evaporator 1 via the heater 26.
Connected to 0.

The evaporator 10 is provided with a steam drain pipe 56 for discharging steam drain after heating the heat transfer tube 14. The steam drain pipe 56 is connected to the bre-heater 24 via a steam trap 58, and the bre-heater 24 collects waste heat. After being collected, it is discharged from the steam drain pipe 60. Note that a drain pipe 62 of the heater 26 is connected to a portion of the steam drain pipe 56 upstream of the steam trap 58 .

The blow pipe 36 is provided with a level switch 64, and the automatic valve 22 and the automatic valve 44 are opened and closed in response to a signal from the level switch 64 to keep the water level in the heater 26 constant and prevent impurities in the deionized water from concentrating. It has a function to control the amount of deionized water supplied and the amount of blowing.

The lower end of the main surplus hot air extraction pipe 70a is connected to the downstream side of the pressure switch 34a of the steam outlet pipe 32, and the upper end of the main surplus hot air extraction pipe 70a condenses pure steam to produce high purity non-stainless water. The capacitor 72 is connected to the capacitor 72. An auxiliary surplus steam extraction pipe 70b is provided in parallel with the main surplus steam extraction pipe 70a, and an automatic valve 74 and an orifice 76 (both are adjustment mechanisms) are provided in the main surplus steam extraction pipe 70a and the auxiliary surplus steam extraction pipe 70b, respectively. is interposed.

A cooling water inlet pipe 78 and a cooling water outlet pipe 80 are connected to the condenser 72, and a regulating valve 79a is interposed in the middle of the cooling water outlet pipe 80. The condenser 72 is also provided with a breather mechanism 82, and the breather mechanism 82 includes a check valve 83a, a sterilization filter 83b, and the like. Reference numeral 84 denotes a cold water outlet pipe connected to, for example, an illuminated water storage tank (not shown).

The amount of pure steam required for the autoclave 33 is intermittent, and when pure steam is not used in the autoclave 33, the pressure in the steam outlet pipe 32 increases, so the pressure switch 34a detects this pressure increase and opens. The valve signal 35a is output to the normally closed automatic valve 74 and the regulating valve 79a, and excess pure steam is supplied to the condenser 72, and low-temperature cooling water is passed through the condenser 72 to convert pure steam to high purity. It is designed to produce non-stainless water.

Next, the effect will be explained. When the deionized water boils in the heater 26, a bumping phenomenon occurs, and this bumping phenomenon increases the pressure inside the heater 26, and the deionized water flows out from the heater 26, mixing the steam, droplets, and liquid with the rising force of the steam. It is then pumped through the main pipe 20 to the upper chamber 16 of the evaporator 10.

Therefore, the heater 26 also functions as a pump, and no special pump is required.

When deionized water in a mixed state of steam, droplets, and liquid is pumped into the upper chamber 16, the volume expands rapidly in the upper chamber 16, causing a so-called flushing phenomenon, and the liquid becomes droplets and the droplets become fine. The liquid is atomized into particles and adheres to the inner surface of the heat transfer tube 14 of the evaporator 10, forming a thin liquid film that is easily evaporated. Heater 26
The steam generated from the heat exchanger tube 14 flows from the lower chamber 18 through the bent tube 28 into the gas-liquid separator 30, where droplets are roughly removed and the steam becomes pure steam. The vapor is supplied from the vapor outlet pipe 32 to the pharmaceutical manufacturing equipment.

The amount of deionized water supplied to the evaporator 10 is appropriately controlled by opening and opening the automatic valves 22 and 44, which are controlled by the level switch 64.

Adjustment of the heat source heating steam is controlled by a pressure indicating regulator 34b. Even if the amount of steam used from the steam outlet pipe 32 changes,
The required amount is supplied by adjusting the opening of the opening adjustment valve 48 so that the pressure is constant using the pressure indicator regulator 34b.

On the other hand, when pure steam is not needed in the autoclave 33, the pressure in the steam outlet pipe 32 increases, so the pressure switch 34
This pressure increase is detected at step a, and a valve opening signal 35a is output to open the automatic valve 74 and the regulating valve 79a. When the automatic valve 74 opens, excess pure steam passes through the main surplus steam extraction pipe 70a and the auxiliary surplus steam extraction pipe 70b, and then flows into the condenser 7.
2, and when the regulating valve 79a opens, the cooling water inlet pipe 7
8 flows into the condenser 72.

Excess steam is condensed in the condenser 72 to produce high purity non-stainless water. The high-purity non-staining water is stored from the non-permanent water outlet pipe 84 into, for example, a non-permanent water tank (not shown) at a high temperature sufficient to prevent the growth of bacteria.

Therefore, even when pure steam is not used in the autoclave 33, the pure steam produced by the evaporator 10 is not wasted and becomes high purity distilled water l1iFl.

Further, since two main surplus steam extraction pipes 70a and auxiliary surplus steam extraction pipes 70b are provided in parallel, the amount of extraction of excess pure steam can be adjusted over a wide range.

(Effects of the Invention) As explained above, the apparatus for producing pure steam and high-purity non-distilled water according to the present invention has an excess steam extraction pipe installed in the middle of the steam outlet pipe that supplies pure steam generated from the evaporator to the facility where it is used. One end of the excess steam extraction pipe is connected, the other end of the excess steam extraction pipe is connected to a condenser for producing high-purity distilled water, and an adjustment mechanism to adjust the amount of steam taken out is installed in the middle of the excess steam extraction pipe, resulting in the following effects: play.

First, when pure steam is not required in the autoclave 33 that uses pure steam intermittently, the automatic valve 74 is opened by the valve opening signal 35a from the pressure switch 34a, and the main surplus steam extraction pipe 70a1 and the auxiliary surplus steam extraction pipe 70b are opened. Excess pure steam can be supplied to the condenser 72 through the condenser 72, and high-purity non-stainless water can be produced using the surplus pure steam. Therefore, the surplus pure steam not consumed in the autoclave 33, which was wasted in the past, can be effectively utilized.

Furthermore, the capacity of pure steam generation equipment such as the evaporator 10 is set to correspond to the maximum usage of the autoclave 33;
Even when pure steam is not required in the autoclave 33, the evaporator 10 is constantly operated to produce improved distilled water in the condenser 72, improving the utilization rate of equipment such as the evaporator 10, and achieving an energy saving effect. can play.

(Another embodiment) (1) The surplus steam extraction pipe does not necessarily need to be provided with two parallel main surplus steam extraction pipes 70a and auxiliary surplus steam extraction pipe 70b as in the embodiment, and at least one surplus steam extraction pipe 70b is not necessarily provided in parallel. It is sufficient if a take-out pipe is provided.

[Brief explanation of the drawing]

The drawing is a schematic structural diagram of a device to which the present invention is applied. 10... Evaporator, 32... Steam outlet pipe, 70a...
・Main surplus steam extraction pipe, 70b...Auxiliary surplus steam extraction pipe, 72...Condenser, 74...Automatic valve, 8
4... Distilled water outlet pipe

Claims (1)

[Claims] One end of the surplus steam extraction pipe is connected to the middle of the steam outlet pipe that supplies pure steam generated from the evaporator to the facility where it is used, and the other end of the surplus steam extraction pipe is connected to a condenser for producing high-purity distilled water. An apparatus for producing pure steam and high-purity distilled water, characterized in that an adjustment mechanism for adjusting the amount of steam taken out is provided in the middle of a surplus steam taking-out pipe.