CN112963816B - Pure steam generating device and working method thereof - Google Patents
Pure steam generating device and working method thereof Download PDFInfo
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- CN112963816B CN112963816B CN202110217004.5A CN202110217004A CN112963816B CN 112963816 B CN112963816 B CN 112963816B CN 202110217004 A CN202110217004 A CN 202110217004A CN 112963816 B CN112963816 B CN 112963816B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
Abstract
The invention relates to a pure steam generating device and a working method thereof. When the device works, raw material water is sprayed by the spraying balls and enters each heat exchange tube, industrial steam is input into the cavity by the industrial steam supply device through the first pipeline, the raw material water exchanges heat with the industrial steam in the cavity through the tube wall of the heat exchange tube in the flowing process in the heat exchange tube, the industrial steam can enable one part of the raw material water in the heat exchange tube to be evaporated to form steam, the other part of the raw material water and the generated pure steam further flow into the second cylinder, the raw material water in the second cylinder is continuously evaporated, and the raw material water is not discharged outwards and wasted, so that energy can be greatly saved; in addition, when pure steam is not required to be output outwards, the pure steam generating device can be in a standby state and can be started at any time when the pure steam is required to be output outwards, and therefore the response speed can be improved.
Description
Technical Field
The invention relates to the technical field of pure steam production, in particular to a pure steam generating device and a working method thereof.
Background
A pure steam generator is a device that produces pure steam using water for injection or purified water. Is widely used for sterilization and disinfection of medical sanitation, biological pharmacy industry and food industry and disinfection of related instruments, and effectively prevents recontamination of impurities such as heavy metal, pyrogen and the like. The classification of various vapors according to pressure and temperature is: saturated steam, superheated steam. The steam is mainly used for heating, humidifying, sterilizing and disinfecting; power can also be generated; as a machine drive, etc. However, the conventional method of generating pure steam by the steam generator includes the steps of: starting up, heating raw material water (such as purified water or water for injection) for a period of time, obtaining pure steam after the raw material water is subjected to falling film evaporation by an evaporator, directly discharging the raw material water which is not evaporated, and finally shutting down. As can be seen, the conventional steam generator does not achieve 24-hour hot standby, nor does it produce pure steam with a rapid response.
Disclosure of Invention
Accordingly, there is a need to overcome the drawbacks of the prior art and to provide a pure steam generator and a method for operating the same, which can save energy and improve response speed.
The technical scheme is as follows: a pure steam generating device, comprising: the evaporator comprises a surrounding plate, a first end panel, a second end panel and a plurality of heat exchange tubes, wherein the surrounding plate is arranged in a surrounding mode in the circumferential direction, the first end panel and the second end panel are respectively arranged at two ends of the surrounding plate, the first end panel, the second end panel and the surrounding plate are surrounded to form a cavity, the plurality of heat exchange tubes are arranged in the cavity, one end of each heat exchange tube penetrates through the first end panel, the other end of each heat exchange tube penetrates through the second end panel, a first air inlet is formed in the top of the surrounding plate, and the first air inlet is communicated with an industrial steam supply device through a first pipeline; the first barrel is arranged on the first end panel and communicated with one end of the heat exchange tube, the second barrel is arranged on the second end panel and communicated with the other end of the heat exchange tube; the spraying ball is arranged inside the first barrel, a first water inlet is formed in the wall of the first barrel, a first water outlet and a steam outlet are formed in the wall of the second barrel, one end of the circulating pipeline is arranged at the first water inlet and communicated with the spraying ball, the other end of the circulating pipeline is communicated with the first water outlet, the pump body is arranged on the circulating pipeline, and the steam outlet is used for discharging pure steam outwards.
When the pure steam generating device works, raw material water is sprayed to each heat exchange tube by the spraying ball and enters each heat exchange tube, meanwhile, industrial steam is input into the cavity by the industrial steam providing device through the first pipeline, the raw material water exchanges heat with the industrial steam in the cavity through the wall of the heat exchange tube in the flowing process in the heat exchange tube, the industrial steam can evaporate one part of the raw material water in the heat exchange tube to form steam, the other part of the raw material water and the generated pure steam further flow into the second cylinder, the pure steam in the second cylinder is discharged outwards through the steam outlet and provided for rear-end engineering equipment, the raw material water in the second cylinder is conveyed to the spraying ball again through the circulating pipeline under the action of the pump body, namely, the raw material water in the second cylinder is continuously evaporated and is not discharged outwards to be wasted, and therefore energy can be greatly saved; in addition, when pure steam is not required to be output outwards, the pure steam generating device can be in a standby state and can be started at any time when the pure steam is required to be output outwards, and therefore the response speed can be improved.
In one embodiment, a pressure regulating valve is arranged on the first pipeline.
In one embodiment, the steam outlet is used for being communicated with rear-end engineering equipment through a second pipeline, and a pressure detector is arranged on the second pipeline; the pure steam generating device also comprises a controller, and the pressure detector and the pressure regulating valve are electrically connected with the controller.
In one embodiment, the pure steam generating device further comprises a water storage tank arranged on the circulating pipeline; the circulating pipeline comprises a first circulating pipe and a second circulating pipe; a second water inlet, a second water outlet and a water replenishing port are formed in the water storage tank; one end of the first circulating pipe is arranged at the first water inlet and is communicated with the spraying ball, the other end of the first circulating pipe is communicated with the second water outlet, one end of the second circulating pipe is communicated with the second water inlet, and the other end of the second circulating pipe is communicated with the first water outlet; the water replenishing port is communicated with the raw material water replenishing device through a water replenishing pipe.
In one embodiment, the pure steam generating device further comprises a water distribution plate arranged in the first cylinder and located between the spraying ball and the first end panel, the water distribution plate and the first end panel are arranged at intervals, and a plurality of water distribution holes are formed in the water distribution plate.
In one embodiment, a plurality of heat exchange tubes are uniformly arranged in the chamber at intervals; the pure steam generating device also comprises a heat-insulating layer arranged on the outer wall of the enclosing plate.
In one embodiment, the pure steam generating device further comprises a steam-water separator arranged in the second cylinder; the first water outlet is arranged at the bottom of the second cylinder, and the steam outlet is arranged at the top of the second cylinder.
In one embodiment, the steam-water separation part comprises a conducting pipe and a flange spirally arranged on the outer wall of the conducting pipe; the top end of the conduction pipe is connected with the second end face plate, the conduction pipe is communicated with the heat exchange pipe, and the bottom end of the conduction pipe is arranged at an interval with the bottom wall of the second cylinder.
In one embodiment, the bottom of the enclosing plate is provided with a third water outlet, and the third water outlet is used for discharging the condensed water in the cavity outwards.
The working method of the pure steam generating device comprises the following steps:
when pure steam needs to be provided for rear-end engineering equipment, industrial steam is introduced into the cavity through the first pipeline, the pump body continuously works at the same time, raw material water in the circulating pipeline is sprayed into the heat exchange pipe through the spraying balls under the power action of the pump body, the industrial steam exchanges heat with the raw material water through the heat exchange pipe to enable the raw material water in the heat exchange pipe to generate the pure steam, and the raw material water and the generated pure steam enter the second cylinder and are discharged to the rear-end engineering equipment outwards through the steam outlet;
when pure steam is not required to be provided for rear-end engineering equipment, a standby step is carried out, in the standby step, the pump body continuously works, raw material water in the circulating pipeline and the heat exchange pipe circularly flows under the power action of the pump body, whether the steam pressure in the cavity is in a preset range or not is judged, and the steam pressure in the cavity is controlled in the preset range by adjusting the flow of industrial steam introduced into the cavity.
In the working method of the pure steam generating device, when the device works, raw material water is sprayed to each heat exchange tube by the spraying ball and enters each heat exchange tube, meanwhile, industrial steam is input into the cavity by the industrial steam providing device through the first pipeline, the raw material water exchanges heat with the industrial steam in the cavity through the wall of the heat exchange tube in the flowing process of the raw material water in the heat exchange tube, the industrial steam can ensure that one part of the raw material water in the heat exchange tube is evaporated to form steam, the other part of the raw material water and the generated pure steam further flow into the second cylinder, the pure steam in the second cylinder is discharged outwards through the steam outlet and provided for rear-end engineering equipment, and the raw material water in the second cylinder is conveyed to the spraying ball again through the circulating pipeline under the action of the pump body, namely, the raw material water in the second cylinder is continuously evaporated and is not discharged outwards and wasted, so that energy can be greatly saved; in addition, when pure steam is not required to be output outwards, the pure steam generating device can be in a standby state and can be started at any time when the pure steam is required to be output outwards, and therefore the response speed can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a pure steam generator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a pure steam generator according to another embodiment of the present invention;
fig. 3 is a schematic structural view of the steam separator of fig. 2.
10. An evaporator; 11. enclosing plates; 111. a first air inlet; 112. a third water discharge port; 12. a first end panel; 13. a second end panel; 14. a heat exchange pipe; 15. a chamber; 16. a heat-insulating layer; 20. a first cylinder; 21. a first water inlet; 30. a second cylinder; 31. a first drain port; 32. a steam outlet; 40. spraying a ball; 50. a circulation line; 51. a water storage tank; 511. a second water inlet; 512. a second water discharge port; 513. a water replenishing port; 52. a first circulation pipe; 53. a second circulation pipe; 60. a pump body; 71. a first conduit; 72. an industrial steam supply device; 73. a pressure regulating valve; 74. a second pipe; 75. back-end engineering equipment; 76. a pressure detector; 81. a water replenishing pipe; 82. a raw material water supply device; 83. a third pipeline; 84. a condensed water collecting device; 90. a steam-water separation member; 91. a conduction pipe; 911. a first tube section; 912. a second tube section; 92. a flange.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating a pure steam generating device according to an embodiment of the present invention, where the pure steam generating device according to an embodiment of the present invention includes: the evaporator 10, the first cylinder 20, the second cylinder 30, the spray ball 40, the circulation pipeline 50 and the pump body 60. The evaporator 10 comprises a surrounding plate 11, a first end plate 12, a second end plate 13 and a plurality of heat exchange tubes 14. The surrounding plate 11 is arranged in a surrounding mode in the circumferential direction. The first end panel 12 and the second end panel 13 are respectively disposed at two ends of the enclosure 11, and the first end panel 12, the second end panel 13 and the enclosure 11 enclose to form a chamber 15. A plurality of heat exchange tubes 14 are installed in the chamber 15, one end of the heat exchange tubes 14 penetrating the first end panel 12 and the other end of the heat exchange tubes 14 penetrating the second end panel 13. The top of the shroud 11 is provided with a first inlet port 111, the first inlet port 111 being for communication with the industrial steam supply device 72 via the first conduit 71. The first cylinder 20 is disposed on the first end panel 12, and the first cylinder 20 is communicated with one end of the heat exchange tube 14. The second cylinder 30 is installed on the second end plate 13, and the second cylinder 30 is communicated with the other end of the heat exchange tube 14. The shower ball 40 is disposed inside the first cylinder 20. The wall of the first cylinder 20 is provided with a first water inlet 21, and the wall of the second cylinder 30 is provided with a first water outlet 31 and a steam outlet 32. One end of the circulation pipeline 50 is arranged at the first water inlet 21 and communicated with the spraying ball 40, and the other end of the circulation pipeline 50 is communicated with the first water outlet 31. The pump body 60 is disposed on the circulation line 50, and the steam outlet 32 is used for discharging pure steam to the outside.
In the pure steam generating device, during operation, raw material water is sprayed to each heat exchange tube 14 by the spraying ball 40 and enters each heat exchange tube 14, meanwhile, industrial steam is input into the chamber 15 by the industrial steam providing device 72, and in the process of flowing in the heat exchange tubes 14, the raw material water exchanges heat with the industrial steam in the chamber 15 through the tube walls of the heat exchange tubes 14, the industrial steam can evaporate a part of the raw material water in the heat exchange tubes 14 to form steam, the other part of the raw material water and the generated pure steam further flow into the second cylinder 30, the pure steam in the second cylinder 30 is discharged outwards through the steam outlet 32 and provided for the rear-end engineering equipment 75, and the raw material water in the second cylinder 30 is conveyed to the spraying ball 40 again through the circulating pipeline 50 under the action of the pump body 60, that is to continue to evaporate the raw material water in the second cylinder 30, but not discharged outwards and wasted, so that energy can be greatly saved; in addition, when pure steam is not required to be output outwards, the pure steam generating device can be in a standby state and can be started at any time when the pure steam is required to be output outwards, and therefore the response speed can be improved.
Referring to fig. 1, a pressure regulating valve 73 is further provided on the first pipe 71. Thus, by adjusting the opening of the pressure regulating valve 73, the steam pressure in the chamber 15 can be adjusted by correspondingly adjusting the steam input into the chamber 15 from the first pipeline 71, so that the steam amount in the chamber 15 can be maintained within a preset range. Especially, when the pure steam generating device is in a standby state, the opening of the pressure regulating valve 73 can be adjusted according to the steam pressure in the chamber 15, so that the steam amount in the chamber 15 is maintained in a preset range, and the pure steam generating device is in a hot water circulation mode state, so that the response speed can be increased, namely, raw water and equipment in the pure steam generating device are hot, the requirement of a rear-end project on the pure steam can be responded immediately, and for example, the pure steam meeting the pharmacopoeia requirement can be generated within 30 s.
Referring again to fig. 1, further, the steam outlet 32 is adapted to communicate with back-end engineering equipment 75 through a second conduit 74, and a pressure detector 76 is provided on the second conduit 74. The pure steam generating device further comprises a controller (not shown in the figures). The pressure detector 76 and the pressure regulating valve 73 are electrically connected with the controller. In this embodiment, the temperature of the industrial steam supplied from the industrial steam supply device 72 is, for example, 160 ℃ to 170 ℃ in general, and 165 ℃ in particular, for example. The pressure of the industrial steam supplied from the industrial steam supply device 72 is usually, for example, 0.5Mpa to 0.7Mpa, and specifically, for example, 0.6Mpa. In this way, the pressure detector 76 can detect the pressure of the steam in the second pipe 74 to correspondingly determine the pressure of the industrial steam in the chamber 15, and maintain the pressure of the industrial steam in the chamber 15 at, for example, 0.3Mpa to 0.32Mpa, and when the pressure of the industrial steam in the chamber 15 is greater than the range of the pressure of the steam, the controller controls the opening of the pressure regulating valve 73 to be reduced; when the pressure of the industrial steam in the chamber 15 is smaller than the steam pressure range, the controller controls the opening degree of the pressure regulating valve 73 to be increased.
It should be noted that, the pressure regulating valve 73 is specifically, for example, an electronic control valve or a pneumatic control valve, and is not limited herein, and automatically adjusts the opening according to data detected by the pressure detector 76, so that the degree of automation is high, and manpower and material resources can be greatly saved.
Referring to fig. 1, further, the pure steam generating device further includes a water storage tank 51 disposed on the circulation pipeline 50. The circulation line 50 includes a first circulation line 52 and a second circulation line 53. The water storage tank 51 is provided with a second water inlet 511, a second water outlet 512 and a water replenishing port 513. One end of the first circulation pipe 52 is installed at the first water inlet 21 and is communicated with the spraying ball 40, and the other end of the first circulation pipe 52 is communicated with the second water outlet 512. One end of the second circulation pipe 53 communicates with the second water inlet 511, and the other end of the second circulation pipe 53 communicates with the first water outlet 31. One end of the water replenishing pipe 81 is communicated with the water replenishing port 513, and the other end of the water replenishing pipe 81 is used for being communicated with the raw material water replenishing device 82. So, can save former feed water in water storage tank 51, along with former feed water constantly consumes, can in time supply former feed water in to water storage tank 51 through moisturizing pipe 81, guarantee that there is sufficient former feed water in the pure steam generating device to provide pure steam constantly to rear-end engineering equipment 75.
Referring again to fig. 1, in one embodiment, the pure steam generator further includes a water distribution tray (not shown) disposed inside the first cylinder 20 and between the spray ball 40 and the first end panel 12. The water distribution plate is arranged opposite to the first end panel 12 at intervals, and a plurality of water distribution holes are arranged on the water distribution plate. Thus, the raw water sprayed by the spraying ball 40 passes through the water distribution disc and then enters each heat exchange tube 14, and the water distribution disc can enable the raw water to uniformly enter each heat exchange tube 14, so that the evaporation effect can be improved.
Referring again to fig. 1, in one embodiment, a plurality of heat exchange tubes 14 are disposed in the chamber 15 at regular intervals. The pure steam generating device further comprises an insulating layer 16 arranged on the outer wall of the enclosure 11. Thus, the evaporation effect can be improved.
Referring to fig. 2 and 3, fig. 2 is a schematic structural view of a pure steam generating device according to another embodiment of the present invention, and fig. 3 is a schematic structural view of a steam-water separating member 90 in fig. 2. In one embodiment, the pure steam generating device further includes a steam separator 90 disposed within the second cylinder 30. The first drain port 31 is disposed at the bottom of the second cylinder 30, and the steam outlet 32 is disposed at the top of the second cylinder 30. Therefore, the steam-water separation part 90 can be beneficial to separating pure steam from raw water in the second cylinder 30, and the raw water can enter the circulating pipeline 50 through the first water discharge opening 31; the pure steam is separated by the steam-water separating part 90 and then discharged outwards through the steam outlet 32, so that a large amount of water drops entrained in the pure steam can be avoided as much as possible.
Referring to fig. 2 and 3, the steam-water separator 90 further includes a conduction pipe 91 and a flange 92 spirally disposed on an outer wall of the conduction pipe 91. The top end of the conduction pipe 91 is connected with the second end face plate 13, the conduction pipe 91 is communicated with the heat exchange pipe 14, and the bottom end of the conduction pipe 91 is arranged at an interval with the bottom wall of the second cylinder 30. Therefore, the conducting pipe 91 conveys the raw water and the pure steam output by the heat exchange pipe 14 to the bottom of the second cylinder 30, the raw water directly enters the circulating pipeline 50 through the first water outlet 31, the pure steam with water drops spirally moves upwards along the outer wall of the conducting pipe 91, and in the upward spiral movement process of the pure steam with water drops, the water drops move outwards under the action of centrifugal force and return to the bottom along the cylinder wall of the second cylinder 30, so that steam-water separation is realized, the generated pure steam enters the rear-end engineering equipment 75 through the steam outlet 32, the raw water which is not evaporated enters the water storage tank 51 through the circulating pipeline 50 and is reused, and the raw water can enter the evaporator 10 again under the action of pumping force of the pump body 60.
Specifically, the conduit 91 includes a first pipe segment 911 and a second pipe segment 912 that communicate with each other. The first pipe segment 911 is a pipe with a gradually reduced pipe diameter, the first pipe segment 911 is connected with the second end panel 13, receives raw material water and pure steam output by the plurality of heat exchange pipes 14, gradually gathers the raw material water and the pure steam, conveys the raw material water and the pure steam to the second pipe segment 912, and conveys the raw material water and the pure steam to the second cylinder 30 through the second pipe segment 912.
Referring to fig. 2 and 3, in one embodiment, the enclosure 11 is provided with a third drain opening 112 at the bottom thereof. The third drain port 112 is used to drain the condensed water in the chamber 15 to the outside. Further, the third drain port 112 is adapted to communicate with the condensed water collecting means 84 through the third conduit 83. After entering the chamber 15, the industrial steam is discharged to the third pipe 83 through the third water discharge port 112 by exchanging heat with the raw water through the heat exchange pipe 14, and is conveyed to the condensed water collecting device 84 by the third pipe 83 for collection.
Referring to fig. 2 and 3, in an embodiment, a method for operating a pure steam generating device according to any one of the above embodiments includes the following steps:
when pure steam needs to be provided for the rear-end engineering equipment 75, the industrial steam is introduced into the cavity 15 through the first pipeline 71, meanwhile, the pump body 60 continuously works, raw material water in the circulating pipeline 50 is sprayed into the heat exchange pipe 14 through the spraying balls 40 under the power action of the pump body 60, the industrial steam exchanges heat with the raw material water through the heat exchange pipe 14, so that the raw material water in the heat exchange pipe 14 generates the pure steam, and the raw material water and the generated pure steam enter the second barrel 30 and are discharged outwards to the rear-end engineering equipment 75 through the steam outlet 32;
when pure steam does not need to be provided for the rear-end engineering equipment 75, a standby step is carried out, in the standby step, the pump body 60 continuously works, the circulation pipeline 50 and the raw material water in the heat exchange pipe 14 circularly flow under the power action of the pump body 60, meanwhile, whether the steam pressure in the cavity 15 is in a preset range or not is judged, and the steam pressure in the cavity 15 is controlled in the preset range by adjusting the flow of the industrial steam introduced into the cavity 15.
In the working method of the pure steam generating device, when in use, raw material water is sprayed to each heat exchange tube 14 and enters each heat exchange tube 14 through the spraying balls 40, meanwhile, industrial steam is input into the chamber 15 through the first pipeline 71 by the industrial steam providing device 72, the raw material water exchanges heat with the industrial steam in the chamber 15 through the tube wall of the heat exchange tube 14 in the process of flowing in the heat exchange tube 14, the industrial steam can enable one part of the raw material water in the heat exchange tube 14 to be evaporated to form steam, the other part of the raw material water and the generated pure steam further flow into the second cylinder 30, the pure steam in the second cylinder 30 is discharged outwards through the steam outlet 32 and provided for the rear-end engineering equipment 75, the raw material water in the second cylinder 30 is conveyed to the spraying balls 40 again through the circulating pipeline 50 under the action of the pump body 60, that the raw material water in the second cylinder 30 is continuously evaporated and is not discharged outwards and wasted, so that energy can be greatly saved; in addition, when pure steam is not required to be output outwards, the pure steam generating device can be in a standby state and can be started at any time when the pure steam is required to be output outwards, and therefore the response speed can be improved.
In infringement comparison, the "flange 92" may be a part of the conduit 91, that is, the "flange 92" and the other part of the conduit 91 are integrally formed; alternatively, the "flange 92" may be formed separately from the "other portion of the conduit 91" and may be formed integrally with the "other portion of the conduit 91" as a separate component. In one embodiment, as shown in FIG. 3, the "flange 92" is a part of the "conduit 91" that is integrally formed.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. A pure steam generating device, characterized in that the pure steam generating device comprises:
the evaporator comprises a surrounding plate, a first end panel, a second end panel and a plurality of heat exchange tubes, wherein the surrounding plate is arranged in a surrounding manner in the circumferential direction, the first end panel and the second end panel are respectively arranged at two ends of the surrounding plate, the first end panel, the second end panel and the surrounding plate are surrounded to form a cavity, the plurality of heat exchange tubes are arranged in the cavity, one end of each heat exchange tube penetrates through the first end panel, the other end of each heat exchange tube penetrates through the second end panel, a first air inlet is formed in the top of the surrounding plate, and the first air inlet is communicated with an industrial steam supply device through a first pipeline;
the first cylinder is arranged on the first end panel and communicated with one end of the heat exchange tube, the second cylinder is arranged on the second end panel and communicated with the other end of the heat exchange tube;
the spraying ball is arranged inside the first cylinder, a first water inlet is formed in the wall of the first cylinder, a first water outlet and a steam outlet are formed in the wall of the second cylinder, one end of the circulating pipeline is arranged at the first water inlet and communicated with the spraying ball, the other end of the circulating pipeline is communicated with the first water outlet, the pump body is arranged on the circulating pipeline, and the steam outlet is used for discharging pure steam outwards;
the water distribution disc is arranged in the first barrel and is positioned between the spraying ball and the first end panel, the water distribution disc and the first end panel are oppositely arranged at intervals, and a plurality of water distribution holes are formed in the water distribution disc;
the steam-water separation piece is arranged in the second cylinder; the first water outlet is arranged at the bottom of the second cylinder, and the steam outlet is arranged at the top of the second cylinder.
2. A pure steam generating device according to claim 1, characterized in that the first pipe is provided with a pressure regulating valve.
3. The pure steam generating device according to claim 2, wherein the steam outlet is used for communicating with rear-end engineering equipment through a second pipeline, and a pressure detector is arranged on the second pipeline; the pure steam generating device further comprises a controller, and the pressure detector and the pressure regulating valve are electrically connected with the controller.
4. The pure steam generating device according to claim 1, further comprising a water storage tank disposed on the circulation line; the circulation pipeline comprises a first circulation pipeline and a second circulation pipeline; a second water inlet, a second water outlet and a water replenishing port are formed in the water storage tank; one end of the first circulating pipe is arranged at the first water inlet and is communicated with the spraying ball, the other end of the first circulating pipe is communicated with the second water outlet, one end of the second circulating pipe is communicated with the second water inlet, and the other end of the second circulating pipe is communicated with the first water outlet; the water replenishing port is communicated with the raw material water replenishing device through a water replenishing pipe.
5. A pure steam generating apparatus according to claim 1, further comprising insulation disposed on an outer wall of the enclosure.
6. A pure steam generating device according to claim 1, wherein a plurality of the heat exchange tubes are provided in the chamber at regular intervals.
7. The pure steam generating device according to claim 1, wherein the steam-water separating member comprises a conducting pipe and a flange spirally arranged on the outer wall of the conducting pipe; the top end of the conduction pipe is connected with the second end face plate, the conduction pipe is communicated with the heat exchange pipe, and the bottom end of the conduction pipe is arranged at an interval with the bottom wall of the second barrel.
8. The pure steam generating apparatus of claim 7 wherein the conduit includes a first conduit section and a second conduit section in communication with each other; the first pipe section is a pipe fitting with a pipe diameter gradually reduced, the first pipe section is connected with the second end face plate, raw material water and pure steam output by the plurality of heat exchange pipes are received and gradually gathered and conveyed to the second pipe section, and the raw material water and the pure steam are conveyed into the second barrel through the second pipe section.
9. The pure steam generating device according to any one of claims 1 to 8, wherein the bottom of the enclosing plate is provided with a third water outlet for discharging the condensed water in the chamber to the outside.
10. A method of operating a pure steam generating unit according to any of claims 1 to 9, characterized in that it comprises the following steps:
when pure steam needs to be provided for rear-end engineering equipment, the industrial steam is introduced into the cavity through the first pipeline, the pump body continuously works at the same time, raw material water in the circulating pipeline is sprayed into the heat exchange pipe through the spraying balls under the power action of the pump body, the industrial steam exchanges heat with the raw material water through the heat exchange pipe to enable the raw material water in the heat exchange pipe to generate the pure steam, and the raw material water and the generated pure steam enter the second cylinder and are discharged to the rear-end engineering equipment outwards through the steam outlet;
when pure steam is not required to be provided for rear-end engineering equipment, a standby step is carried out, in the standby step, the pump body continuously works, raw material water in the circulating pipeline and the heat exchange pipe circularly flows under the power action of the pump body, whether the steam pressure in the cavity is in a preset range or not is judged, and the steam pressure in the cavity is controlled in the preset range by adjusting the flow of industrial steam introduced into the cavity.
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