JP3658702B2 - Pure steam production equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pure steam production apparatus used in the fields of pharmaceutical and food production.
[0002]
[Prior art]
This type of equipment consists of three components: a heating can, an evaporation can, and a gas-liquid separator. The supply water is heated by a pre-heater and then flows into the heating can. The vapor generated in the evaporator is fed into the evaporator with the fluid, and the vapor is sent to the gas-liquid separator to separate the liquid droplets to produce pure steam. In the conventional apparatus, as shown in FIG. The heater 51, the evaporator 52, and the separator 53, which are independent of each other, are connected by the main pipe 54.
[0003]
[Problems to be solved by the invention]
Therefore, in such a conventional apparatus, the heater, the evaporator, and the separator are individually manufactured as independent ones, and are connected by piping, so that a large installation area is required. In addition, there is a problem that it is inevitable that the cost is high in terms of labor and production and management of piping.
[0004]
The present invention has been made in view of such problems of the prior art, and the object of the present invention is to configure a heating can, an evaporator and a gas-liquid separator as one and connect them by piping. By eliminating it, it tries to solve the above-mentioned problems.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a pure steam production apparatus according to the present invention is an apparatus for producing pure steam, a heating can part (10) having a function of a heater, a function of generating steam, and a cyclone. The heating can part (10) is integrally connected to the evaporator part (20) having a gas-liquid separation function according to (8), and the heating can part (10) transmits the supply water taken from the supply water inlet (1). It is configured to be heated through the heat pipes (2, 3) and mixed with steam and droplets by the pressure of the generated steam and directly pumped to the upper inlet (4) of the evaporator section (20). 20), the vapor mixture pumped from the upper receiving port (4) descends in the cylindrical portion (5) provided at the center of the apparatus and expands and diffuses in the lower expansion chamber (6). A functioning evaporator structure and the pressure rising from the expansion chamber (6) to the annular chamber (7) Enhance the separator structure that functions to retrieve sequentially the outlet (9) collected by further separating the droplets while swirling towards the center inside the cyclone (8) provided on the outer periphery of the cylindrical portion Is provided.
[0006]
And it is preferable that the said apparatus comprises the heat exchanger tube 2.3 of the heating can part 10 as a straight tube reciprocating type.
[0007]
For the same purpose, several cyclones 8 in the annular chamber 7 of the evaporator 20 are provided at equal circumferential intervals, and the cyclone 8 descends while turning from the annular chamber 7 toward the center inward, and then rises again. A septum 12 may be provided in the cyclone chamber 11.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
[0009]
As shown in FIG. 1, the heating can 10 has a heating steam inlet 10b and an outlet 10c for introducing a heat source on the outer surface of the main body case 10a, and is provided with straight tube reciprocating heat transfer tubes 2 and 3 in the hollow interior. It consists of things. The upper end ports of the heat transfer tubes 2 and 3 open to the upper chamber 10e partitioned by the partition plate 10d, the lower end port of the heat transfer tube 3 in the center opens to the upper receiving port 4 of the evaporator 20, and the other heat transfer tubes 3 Each lower end of each of these is opened to the lower chamber 14.
[0010]
As shown in FIG. 1 and FIG. 2, the evaporator 20 has a cylindrical can body case 20a as an outer case, a cylindrical portion 5 concentrically disposed therein, an annular partition wall 12 and an outer cyclone outer cylinder 13 thereof. It consists of what was provided integrally. The cylindrical portion 5 is supported by the upper end plate 15 in a suspended manner, and faces the upper receiving port 4 so that the lower end of the heat transfer tube 2 opens. A lower end opening 5a of the cylindrical portion 5 forms a space serving as a lower expansion chamber 6 between the bottom portion of the can body case 20a.
[0011]
As shown in FIG. 3 to FIG. 4, the cyclone 8 has a plurality of window holes 8 a cut in a tangential direction on the outer peripheral surface of the upper part of the cyclone outer cylinder 13 so as to generate a swirling flow toward the center inward and toward the back. It is formed of guide pieces 8c partitioned so as to form a narrow passage 8b, and is provided at three or four places at equal circumferential intervals.
[0012]
[Action]
When heated steam as a heat source is fed into the heated can 10 from the heated steam inlet 10b, the steam fills the can and flows out from the outlet 10c. The temperature of the heat transfer tube 2.3 is heated.
[0013]
When supply water is supplied from the supply water inlet 1 in this state, the supply water passes from the lower chamber 14 through the heat transfer tube 2 to the upper chamber 10e, and further evaporates from the upper chamber 10e through the heat transfer tube 3 at the center. It is fed into the upper receiving port 4 of the cylindrical part 5 of the can part 20. For this reason, the supply water is heated to a predetermined high temperature while reciprocating through the heat transfer tubes 2 and 3 to generate steam, and is further pumped to the cylindrical chamber 5 by the gas-liquid two-phase fluid of steam and saturated water at that pressure. From the lower end, the annular chamber 7 is raised through the expansion chamber 6 to increase the pressure, and a cyclonic flow toward the center inward is generated by the cyclone 8, and the pressure path 15 inside the cyclone chamber 11 and the partition wall 12 is raised from the separation chamber 16. It is sent out to the outlet 9, and the droplets are finally separated and removed during such a flow to obtain high-purity vapor.
[0014]
The separation chamber 16 is provided with a droplet drain tube 17 for collecting excess droplets as drain.
[0015]
【The invention's effect】
As described above, the pure steam production apparatus of the present invention is a unit in which a heating can part having a heater function and an evaporator part having a function of generating steam and a gas-liquid separation function are integrally connected in the vertical direction. The heating can part is configured to heat the feed water taken from the feed water inlet through a heat transfer tube, mix the steam and liquid droplets with the pressure of the generated steam, and directly pump it to the upper inlet of the evaporator part In the evaporator section, the evaporator structure functions so that the vapor mixture pumped from the upper receiving port descends in the cylindrical section and expands and diffuses in the lower expansion chamber, and the annular chamber rises from the expansion chamber. In this case, the separator is equipped with a separating device structure that functions to increase the pressure and rotate the cyclone to further separate droplets and continuously remove them from the outlet. While supplying the heater and evaporator and The pure steam of high purity can be obtained continuously from one device with the function of the separator, and each of the heater, the evaporator and the separator is independent and connected to the piping as in the past. In this way, it is possible to easily install in a narrow place without the need for a vast installation place, and it eliminates the labor of connection by piping, and it is easy to manufacture and manage, which is advantageous in terms of cost. is there.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of an entire structure of a pure steam production apparatus showing an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of a lower half portion in FIG.
FIG. 3 is an enlarged cross-sectional plan view taken along line AA in FIG. 2;
FIG. 4 is an enlarged arrow view of a cyclone portion.
FIG. 5 is a layout view of a conventional apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Supply water inlet 2.3 Heat transfer pipe 4 Upper inlet 5 Cylindrical part 6 Expansion chamber 7 Annular chamber 8 Cyclone 9 Outlet 10 Heating can part 11 Cyclone chamber 12 Partition 13 Cyclone outer cylinder 14 Lower chamber 20 Evaporator part

Claims (3)

An apparatus for producing pure steam, a heating can part (10) having a function of a heater, an evaporator part (20) having a function of generating steam and a gas-liquid separation function by a cyclone (8), The heating can part (10) heats the supply water taken from the supply water inlet (1) through the heat transfer pipes (2, 3) and generates steam and droplets with the pressure of the generated steam. The vapor mixture is directly pumped to the upper receiving port (4) of the evaporator portion (20), and the vapor mixture pumped from the upper receiving port (4) to the evaporator portion (20). Has an evaporator structure that functions to descend in a cylindrical portion (5) provided at the center of the apparatus and expand and diffuse in the lower expansion chamber (6), and from the expansion chamber (6) to the annular chamber (7). elevated increasing the pressure by the by cyclone (8) provided on the outer periphery of the cylindrical portion Pure steam production apparatus characterized by a separator structure that functions to retrieve continuously from further takeout separating droplets while swirling toward heart inward (9), consisting equipped. 2. The apparatus for producing pure steam according to claim 1, wherein the heat transfer tubes (2, 3) of the heating can part (10) are configured as a straight tube reciprocating type. Several cyclones (8) in the annular chamber (7) of the evaporator section (20) are provided at equal circumferential intervals, and after descending while turning from the annular chamber (7) toward the center inward, it rises again. The apparatus for producing pure steam according to claim 1, wherein a partition wall (12) is provided in the cyclone chamber (11).

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