A condensate recovery device and steam conversion and utilization humidification system

Abstract

The present invention relates to the technical field of condensate humidification, and in particular to a condensate recovery device and a steam conversion and utilization humidification system, comprising a recovery tank, an opening control mechanism and a steam separation mechanism, which adjusts the filtering effect and opening of a filter tank according to the liquid level in a filter chamber to prevent pollution caused by subsequent recycling of the condensate, affecting the quality of steam produced subsequently, and preventing equipment damage caused by large-flow condensate. The relative motion friction between two filter discs is controlled by the swing amplitude of a separation lever, thereby cleaning the filter tank. In the event of severe blockage, the filter disc is automatically switched to the next area of ​​the filter disc, thereby extending the service life and facilitating operation and maintenance. The device also comprises a condensate recovery unit, a buffer zero pressure unit and a steam generation unit, which collect and reuse condensate and flash steam, thereby saving steam consumption, improving equipment working efficiency, increasing the amount of flash steam generated, reducing the amount of fresh steam used, and ultimately reducing energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of condensed water humidification, in particular to a condensed water recovery device and a steam conversion and utilization humidification system. Background Art

[0002] The vacuum rehumidification machine plays an important role in the process of tobacco leaf production of cigarettes. It is mainly used to adjust the moisture content of tobacco leaves. The moisture content of tobacco leaves will change during storage and processing. In order to ensure the quality of tobacco leaves and the smooth progress of subsequent processing, its moisture content needs to be strictly controlled. The vacuum rehumidification machine humidifies the tobacco leaves in a vacuum environment to achieve the purpose of uniform and rapid rehumidification. As one of the tobacco main machines, the vacuum rehumidification machine is the single-machine equipment with the largest energy consumption in the production workshop where it is located. The high energy consumption of the vacuum rehumidification machine is mainly restricted by two major links: the vacuum system and the humidification system.

[0003] The existing Chinese patent with authorization announcement number CN202692376U discloses a humidifying device for adjusting air humidity by returning condensed water from an air conditioner, including an air conditioner indoor unit and a water collection tank, wherein the condensed water pipe of the air conditioner indoor unit is connected to the water collection tank, an ion generator is arranged in the water collection tank, and a fan is arranged above the ion generator. The utility model adopts the principle of the ion generator to atomize the condensed water of the air conditioner and humidify the indoor air, so that people feel cool without losing moisture; however, the condensed water opening of the above-mentioned humidifying device cannot be automatically adjusted, and the impurities mixed in the condensed water cannot be filtered and removed, resulting in condensed water pollution and reduced quality, and the existing condensed water filtering device filter screens are fixed and cannot be moved, which is difficult to replace and repair and has a short service life.

[0004] At the same time, the existing Chinese patent with publication number CN2011201850946A discloses a new tobacco leaf humidifying device, which improves the humidification effect by improving the structural design of the humidifying device; the existing Chinese patent with patent number ZL2023213233733 discloses a double-sided horizontal humidifying device used for tobacco leaf rehumidification, which improves the structural design and installation position of the humidifying device. However, the above patents are all designed from the humidifying device itself or change the installation position of the humidifying device, and do not take reducing the instantaneous flow of steam in the boiler room as the goal to be overcome, and cannot achieve energy consumption reduction.

[0005] In summary, due to the characteristics of large instantaneous steam flow during the humidification process, the humidification system of the vacuum dehumidification machine has always used direct steam supply from the boiler room. In actual operation, due to the intermittent operation of the humidification process, the instantaneous fluctuations of the pipeline network are large, the boiler is difficult to achieve economical operation, and it is easy to cause pressure fluctuations to other steam-using equipment on the production line, thereby affecting the process quality stability of other equipment; at the same time, in terms of steam quality, the steam in the boiler room is very superheated, which is not conducive to tobacco leaf humidification; secondly, in terms of steam source supply, how to convert condensed water into steam for reuse is a technical blank, and the flash steam generated cannot be used in the tobacco production dehumidification process, resulting in waste; therefore, weakening the impact of the humidification system on the instantaneous large flow of boiler steam and recycling condensed water and flash steam are technical issues that urgently need to be broken through in the field of vacuum dehumidification machines. Summary of the invention

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the above problems in the prior art, the present invention is proposed.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a recovery tank, comprising a tank body and a liquid collecting pipe arranged on the outer wall of the tank body, the liquid collecting pipe is connected to the tank body and is arranged on the upper side of the outer wall of the tank body, the liquid collecting pipe is respectively connected to each area of ​​the steam pipe network, and transports condensed water to the inside of the tank body;

[0009] The opening control mechanism comprises a filter cavity and a filter disc rotatably arranged in the filter cavity, the filter disc is eccentrically arranged with respect to the liquid collecting pipe, the center of the liquid collecting pipe is located in the outer circumferential area of ​​the filter disc, the filter disc is concentrically provided with two filter discs and rotates in opposite directions, and a filter slot is opened on the filter disc;

[0010] The steam separation mechanism includes a buffer chamber and a separation bar rotatably arranged in the buffer chamber. A pressure-stabilizing tube is also arranged on the upper end surface of the buffer chamber. The buffer chamber is sleeved on the outer wall of the liquid collecting pipe and the opening direction of the pressure-stabilizing tube faces upward. The separation bar is tilted. A spring is arranged between the separation bar and the buffer chamber. The spring drives the separation bar to automatically reset.

[0011] As a preferred solution of the condensate recovery device of the present invention, two filter discs are arranged to rotate simultaneously in the filter chamber, namely a first filter disc and a second filter disc, and a boss is provided on the outer wall of one side of the first filter disc and the second filter disc close to each other.

[0012] As a preferred solution of the condensate recovery device of the present invention, wherein: the right end surface of the first filter disc and the right end surface of the second filter disc are respectively provided with a first transmission rod and a second transmission rod, and the first transmission rod rotates and penetrates the second transmission rod;

[0013] A bracket is fixedly provided on the lower end surface of the buffer cavity, a transmission gear is rotatably provided in the bracket, a second driven gear is provided at one end of the second transmission rod penetrating into the bracket, and a first driven gear is provided at one end of the first transmission rod penetrating into the bracket.

[0014] As a preferred solution of the condensate recovery device of the present invention, wherein: a transmission shaft is provided at one end of the transmission gear, one end of the transmission shaft rotates through the bracket and is provided with a control column, and a control groove is provided on the control column;

[0015] The control groove comprises a right-angle groove and an oblique groove. A control rod is slidably arranged in the control groove. When the control rod slides along the oblique groove, the control column is driven to rotate.

[0016] As a preferred solution of the condensate recovery device described in the present invention, wherein: arc walls are provided on both sides of the buffer chamber, the two side surfaces of the separation bar are respectively slidably fitted with the arc walls on both sides, and floating blocks and sinkers are respectively provided on both sides of the upper end surface of the separation bar, and the floating blocks and sinkers are used to drive the separation bar to rotate when the water level in the buffer chamber rises.

[0017] As a preferred solution of the condensate recovery device of the present invention, a transfer bin is opened on the arc wall at one end of the floating block, a steam pipe is provided on the upper end surface of the transfer bin, and an overflow port is provided on the lower end surface of the transfer bin.

[0018] As a preferred solution of the condensate recovery device of the present invention, a rotating shaft is provided between the separation bar and the buffer cavity, a rotating shaft rotates through the buffer cavity and extends to one end of the external part and is sleeved with a turntable, a circumferential array of teeth is provided on the outer wall of the turntable, and a pointer is also provided at the end of the rotating shaft, and the liquid level relationship in the buffer cavity is judged by the pointing angle of the pointer;

[0019] The outer wall of the buffer cavity is slidably provided with a slider, the outer wall of the slider is provided with a rack, and one end of the slider that slides out to the outer wall of the buffer cavity is provided with a connecting frame, and the two ends of the connecting frame are respectively connected to the slider and the control column.

[0020] The present invention also discloses a steam conversion and humidification system, which includes a condensate recovery unit, a buffer zero pressure unit, a steam generating unit, a high-temperature pump, a vacuum gauge, and an automatic control valve. The condensate recovery unit is connected to each area of ​​the steam network through a liquid collecting pipe to recover condensate from each area. The condensate recovery unit collects condensate through a recovery tank and monitors the condensate pressure and liquid level at the same time. The interface of the condensate recovery unit is connected to the interface of the buffer zero pressure unit through a pipeline, a valve and a high-temperature pump. The interface of the buffer zero pressure unit is connected to the interface of the steam generator, and the interface of the steam generator is connected to the steam-using equipment.

[0021] As a preferred embodiment of the condensate recovery device of the present invention, it further comprises a degasser and a mixed flow booster, wherein the interface on the condensate recovery unit is connected to the suction port of the degasser, the discharge port of the degasser is connected to the interface of the steam generating unit, the interface on the buffer zero pressure unit is connected to the suction port of the mixed flow booster, and the discharge port of the mixed flow booster is connected to the interface of the steam generating unit;

[0022] The steam generating unit has a first heater built in, the buffer zero pressure unit has a second heater built in, external steam is connected to the inlet of the first heater, the outlet of the first heater is connected to the inlet of the second heater through a pipeline, and the outlet of the second heater is connected to the interface of the condensate recovery unit through a steam water valve group.

[0023] As a preferred embodiment of the condensate recovery device described in the present invention, wherein: the interface of the steam generating unit is connected to the vacuum system through an automatic control valve, the interface of the steam generating unit is connected to the interface of the buffer zero pressure unit through an automatic control valve, and the interface of the buffer zero pressure unit is connected to the interface of the condensate recovery unit through an automatic control valve; the condensate recovery unit is installed with a first pressure gauge, a first thermometer, and a water level gauge, the buffer zero pressure unit is installed with a second pressure gauge and a second thermometer, and the steam generating unit is installed with a third pressure gauge and a third thermometer.

[0024] The beneficial effects of the present invention include adjusting the filtering effect and opening of the filter tank according to the liquid level in the filter chamber, preventing pollution during the subsequent recycling of condensed water, affecting the quality of steam produced subsequently, and preventing equipment damage caused by large flow of condensed water. The relative motion friction between the two filter discs is controlled by the swing amplitude of the separation lever, thereby cleaning the filter tank. In the case of severe blockage, it automatically switches to the next area of ​​the filter disc, extending the service life and facilitating operation and maintenance. The steam conversion and humidification system saves steam consumption, improves equipment working efficiency, increases the amount of flash steam generated, reduces the use of fresh steam, and ultimately reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 It is an overall schematic diagram of the condensed water recovery device in the present invention;

[0027] Figure 2 It is a schematic diagram of the opening control mechanism in the present invention;

[0028] Figure 3 is a schematic diagram of the pointer area structure in the present invention;

[0029] Figure 4 It is an enlarged schematic diagram of the filter disc area in the present invention;

[0030] Figure 5 It is a schematic diagram of the transmission gear area in the present invention;

[0031] Figure 6 It is a schematic diagram of the cooperation between the control rod and the control column in the present invention;

[0032] Figure 7 It is a schematic diagram of the internal structure of the buffer cavity in the present invention;

[0033] Figure 8 This is a schematic diagram of the pointer indicating the liquid level of the buffer chamber in the present invention;

[0034] Fig. 9 It is a schematic diagram of the steam conversion and humidification system in the present invention;

[0035] Fig.10 It is a flow chart of the steam conversion and humidification system in the present invention;

[0036] Among them, in the figure: 10, recovery tank; 11, tank body; 12, liquid collecting pipe;

[0037] 20. opening control mechanism; 21. filter chamber; 211. first filter disc; 2111. first transmission rod; 2112. first driven gear; 212. second filter disc; 2121. second transmission rod; 2122. second driven gear; 213. boss; 22. filter disc; 221. filter tank;

[0038] 30. Steam separation mechanism; 31. Buffer chamber; 311. Bracket; 3112. Transmission shaft; 3113. Control column; 3114. Control slot; 3115. Right-angle slot; 3116. Oblique slot; 3111. Transmission gear; 313. Arc wall; 314. Slider; 3141. Rack; 3142. Connecting frame; 32. Separation lever; 321. Float; 322. Transfer chamber; 3221. Steam pipe; 3222. Overflow port; 323. Rotating shaft; 3231. Turntable; 3232. Teeth; 3233. Pointer; 324. Sink; 33. Control lever; 34. Voltage regulator;

[0039] 41. First temperature gauge; 42. Automatic control valve; 43. First pressure gauge; 44. Degasser; 45. Second pressure gauge; 46. Second temperature gauge; 47. Mixed flow supercharger;

[0040] 51. Zero pressure tank; 52. Vacuum system; 53. Rehumidification machine; 54. Steam generator tank. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0044] Example 1

[0045] Reference Figure 1 to Figure 8 , which is the first embodiment of the present invention, provides a condensate recovery device, including a recovery tank 10, an opening control mechanism 20 and a steam separation mechanism 30, which adjusts the filtering effect and opening of the filter tank 221 according to the liquid level in the filter chamber 21 to prevent pollution caused by subsequent recycling of condensate, affect the quality of subsequent steam production, and prevent equipment damage caused by large flow of condensate.

[0046] Specifically, a condensate recovery device includes: a recovery tank 10 including a tank body 11 and a liquid collecting pipe 12 arranged on the outer wall of the tank body 11 . The collecting pipe 12 is connected with the tank body 11 and is arranged on the upper side of the outer wall of the tank body 11. The collecting pipe 12 is respectively connected with each area of ​​the steam pipe network and transports the condensed water to the inside of the tank body 11; the opening control mechanism 20 includes a filter chamber 21 and a filter plate 22 rotatably arranged in the filter chamber 21, the filter plate 22 is eccentrically arranged with the collecting pipe 12, the center of the collecting pipe 12 is located in the outer circumferential area of ​​the filter plate 22, two filter plates 22 are concentrically arranged and rotate in opposite directions, and a filter groove 221 is opened on the filter plate 22; the steam separation mechanism 30 includes a buffer chamber 31 and a separation bar 32 rotatably arranged in the buffer chamber 31, and a voltage-stabilizing tube 34 is also provided on the upper end surface of the buffer chamber 31. The buffer chamber 31 is sleeved on the outer wall of the collecting pipe 12 and the opening direction of the voltage-stabilizing tube 34 is upward, the separation bar 32 is tilted, and a spring is provided between the separation bar 32 and the buffer chamber 31, and the spring drives the separation bar 32 to automatically reset.

[0047] Among them, the tank body 11 is a condensate collection tank made of aluminum alloy to prevent the collected steam from being corroded and rusted. The filter chamber 21 is sealed and connected to the liquid collecting pipe 12 to prevent water leakage. The number of liquid collecting pipes 12 is determined according to the number of steam network areas. In this embodiment, there are four liquid collecting pipes 12, which collect steam condensate from the front and rear four areas in the steam network respectively.

[0048] Preferably, two filter discs 22 are rotatably disposed in the filter cavity 21 , namely a first filter disc 211 and a second filter disc 212 . A boss 213 is disposed on the outer wall of a side where the first filter disc 211 and the second filter disc 212 are close to each other.

[0049] Among them, the filter groove 221 is a waist-shaped groove hole along the radial direction, and the boss 213 is made of rubber material. When the two filter discs 22 rotate relative to each other, it can enter the filter groove 221 of the other filter disc 22 for cleaning. At the same time, the first filter disc 211 and the second filter disc 212 are only provided with bosses 213 on the inner walls on the side close to each other, and the bosses 213 on the two outer walls are staggered. During filtering, the tobacco leaf debris mixed with the distilled water can be torn and crushed to prevent the filter groove 221 from being blocked.

[0050] Among them, the filter groove 221 of the first filter disc 211 and the second filter disc 212 overlap a part in the initial state. When the two rotate relative to each other so that the overlapping part increases, the passing space becomes larger and the filtering effect becomes worse. When the overlapping part decreases, the passing space becomes smaller and the filtering effect becomes better. At the same time, impurities on the inner wall of the filter groove 221 can be cleaned during the relative rotation process.

[0051] Furthermore, a first transmission rod 2111 and a second transmission rod 2121 are respectively disposed on the right end surface of the first filter disc 211 and the right end surface of the second filter disc 212 , and the first transmission rod 2111 rotates through the second transmission rod 2121 .

[0052] More preferably, a bracket 311 is fixedly provided on the lower end surface of the buffer chamber 31, a transmission gear 3111 is rotatably provided in the bracket 311, a second transmission rod 2121 is provided with a second driven gear 2122 at one end that passes through the bracket 311, and a first driven gear 2112 is provided at one end that passes through the bracket 311.

[0053] Preferably, the first driven gear 2112 and the second driven gear 2122 are symmetrically meshed on both sides of the transmission gear 3111. In this embodiment, the transmission gear 3111 is controlled by a flow sensor. When the flow is too large, the transmission gear 3111 rotates clockwise, and the overlapping area between the two filter discs 22 becomes larger, allowing more condensed water to pass through.

[0054] The bracket 311 is in a gate shape, the second transmission rod 2121 is rotatably disposed on the left end face of the bracket 311 through a bearing, the first transmission rod 2111 rotates through the second transmission rod 2121 and the second driven gear 2122 and is rotatably disposed on the right end face of the bracket 311 through a bearing.

[0055] Furthermore, a pressure relief valve is provided on the upper end surface of the buffer chamber 31. When the pressure in the buffer chamber 31 is too high, the exhaust is used to reduce the pressure, thereby preventing the condensed water in the tank body 11 from generating flash steam with excessive pressure, which may cause the tank to explode.

[0056] In summary, when in use, the flow rates and pressures of condensed water and flash steam in various areas of the steam network are different. Therefore, before entering the tank body 11, the condensed water is first buffered by the buffer chamber 31 to prevent equipment damage caused by excessive pressure and water hammer effect. Then the condensed water enters the filter chamber 21 and is filtered by the filter disc 22 to filter out tobacco leaf residues contaminated in the production process and rust on the inner wall of the pipe to prevent pollution during the subsequent recycling of the condensed water and affect the quality of steam produced subsequently.

[0057] At the same time, when the condensate flow in a certain area of ​​the steam network fluctuates and increases, the flow sensor starts to control the transmission gear 3111 to rotate, and at the same time drives the first driven gear 2112 and the second driven gear 2122 to rotate in opposite directions, and drives the first filter disc 211 and the second filter disc 212 to rotate and swing respectively through the first transmission rod 2111 and the second transmission rod 2121, and the filter slots 221 in the adjacent filter discs 22 are cleaned through the contact swing of the boss 213. At the same time, the bosses 213 are staggered to crush larger impurities to prevent clogging of the filter slots 221. At the same time, with the reverse swing of the first filter disc 211 and the second filter disc 212, the overlapping range between the filter slots 221 increases, and the instantaneous large flow of condensate can pass through the filter chamber 21 smoothly, and automatically reset after passing through to restore the filtering effect.

[0058] Example 2

[0059] Reference Figure 1 to Figure 8 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but is different in that the relative motion friction between the two filter discs 22 is controlled by the swing amplitude of the separation lever 32, so as to clean the filter tank 221. In the case of severe blockage, it automatically switches to the next area of ​​the filter disc 22, thereby extending the service life and facilitating operation and maintenance.

[0060] Specifically, a transmission shaft 3112 is provided at one end of the transmission gear 3111 , and one end of the transmission shaft 3112 rotates through the bracket 311 and is provided with a control column 3113 , and a control slot 3114 is provided on the control column 3113 .

[0061] Preferably, the control groove 3114 includes a right-angle groove 3115 and an oblique groove 3116 , and a control rod 33 is slidably provided in the control groove 3114 , and when the control rod 33 slides along the oblique groove 3116 , it drives the control column 3113 to rotate.

[0062] Among them, the right-angle groove 3115 is arranged parallel to the axial direction of the transmission shaft 3112, the angle between the inclined groove 3116 and the right-angle groove 3115 is 45 degrees, and a rounded corner is provided at the connection between the right-angle groove 3115 and the inclined groove 3116, so that the control column 3113 continues to move a distance after rising along the right-angle groove 3115 to the rounded corner, and falls into the inclined groove 3116 and slides during the descent, thereby driving the control column 3113 to rotate.

[0063] More preferably, arc walls 313 are provided on both sides of the buffer chamber 31, and the side surfaces of the separation bar 32 are slidably fitted with the arc walls 313 on both sides, and floating blocks 321 and sinkers 324 are provided on both sides of the upper end surface of the separation bar 32. The floating blocks 321 and sinkers 324 are used to drive the separation bar 32 to rotate when the water level in the buffer chamber 31 rises.

[0064] Among them, as the water level in the buffer chamber 31 rises, the float 321 is lifted up by the water surface and moves upward, driving the separation bar 32 to swing while overcoming the resistance of the elastic member. At the same time, the sinker 324 moves downward, the balance is broken, and the separation bar 32 swings. The higher the liquid level rises, the greater the swing amplitude.

[0065] Furthermore, a transfer chamber 322 is provided on the arc wall 313 at one end of the floating block 321 , a steam pipe 3221 is provided on the upper end surface of the transfer chamber 322 , and an overflow port 3222 is provided on the lower end surface of the transfer chamber 322 .

[0066] Among them, the height of the transfer bin 322 is level with the warning water level height of the buffer chamber 31. When the water level pushes the float 322 to reach the intersection of the transfer bin 322 and the arc wall 313, the water flows into the transfer bin, and due to the contact with the low-pressure area, flash steam is generated and flows out through the steam pipe 3221. At the same time, the flash steam generated during the flow of condensed water is also collected and discharged, and the excess condensed water flows out from the overflow port 3222.

[0067] Preferably, a rotating shaft 323 is provided between the separation lever 32 and the buffer chamber 31. The rotating shaft 323 rotates through the buffer chamber 31 and extends to one end of the outside and is sleeved with a turntable 3231. A circular array of teeth 3232 is provided on the outer wall of the turntable 3231. A pointer 3233 is also provided at the end of the rotating shaft 323. The liquid level relationship in the buffer chamber 31 is judged by the pointing angle of the pointer 3233.

[0068] The outer wall of the buffer cavity 31 is slidably provided with a slider 314 , and the outer wall of the slider 314 is provided with a rack 3141 , which is meshed and connected with the teeth 3232 , and the rotating disk 3231 drives the rack 3141 to move when it rotates.

[0069] More preferably, a connecting frame 3142 is provided at one end of the slider 314 that slides out to the outer wall of the buffer cavity 31 , and two ends of the connecting frame 3142 are respectively connected to the slider 314 and the control column 3113 .

[0070] In summary, when in use, as the liquid level in the buffer chamber 31 rises, the float 321 is pushed up, and the separation lever 32 overcomes the resistance of the elastic part and swings, while the sinker 324 moves downward, the balance is broken, the separation lever 32 swings, and the higher the liquid level rises, the greater the swing amplitude, and while the separation lever 32 swings, the rotating shaft 323 connected thereto rotates accordingly, driving the turntable 3231 and the pointer 3233 to rotate. The higher the liquid level, the greater the rotation angle of the pointer. At the same time, the longer the distance the rack 3141 is driven by the teeth 3232 to move, the longer the distance the slider 314 and the connecting frame 3142 are moved, thereby driving the control rod 33 to move a longer distance in the inclined groove 3116, and the greater the rotation angle of the control column 3113, the greater the rotation stroke of the transmission gear 3111 driven by the transmission shaft 3112, and the overlapping range between the filter tanks 221 is increased, which facilitates discharge.

[0071] At the same time, when the filter tank 221 is blocked, the internal liquid level rises sharply, and the control rod 33 moves to the lowest point of the inclined slot 3116 and enters the next right-angle slot 3115. At this time, the two filter discs 22 rotate in opposite directions. When the liquid level drops, the control column 3113 stays in the right-angle slot, and the filter disc 22 cannot be reset and enters a new gear, thereby realizing the switching of the filtration area of ​​the filter disc 22, that is, the blocked filter tank 221 is removed and replaced with a new filter tank 221, and the filter tank 221 can be automatically replaced reciprocatingly multiple times. A small door is opened under the filter chamber 21, which is convenient for the staff to open it to manually remove impurities or replace the filter disc 22.

[0072] Example 3

[0073] Reference Figure 1-Figure 10 , which is the third embodiment of the present invention, provides a steam conversion and humidification system. The method is implemented based on the above-mentioned condensate recovery device, saves steam consumption, improves equipment working efficiency, increases flash steam generation, reduces fresh steam usage, and ultimately reduces energy consumption.

[0074] Specifically, a steam conversion and humidification system includes a condensate recovery unit, a buffer zero pressure unit, a steam generating unit, a degasser 44, a mixed flow turbocharger 47, a high temperature pump, a first temperature gauge 41, a second temperature gauge 46, a third temperature gauge, a first pressure gauge 43, a second pressure gauge 45, a third pressure gauge, a vacuum gauge, and an automatic control valve 42.

[0075] Preferably, the condensate recovery unit is connected to each area of ​​the steam network through a collecting pipe 12 to recover condensate from each area. The condensate recovery unit collects condensate through a recovery tank 10 and monitors the condensate pressure and liquid level at the same time. The interface of the condensate recovery unit is connected to the interface of the buffer zero pressure unit through pipelines, valves and high-temperature pumps. The interface of the buffer zero pressure unit is connected to the interface of the steam generator through an automatic control valve 42 and a pipeline. The interface of the steam generator is connected to the steam-using equipment through pipelines and valves. The valve pump is a mechanical pump. A heating coil is provided in the steam generator to heat the steam to ensure that the temperature and pressure of the output steam are constant. The voltage regulator 34 is used to buffer the condensate pressure in the recovery tank 10 to ensure pressure stability and eliminate the water hammer effect.

[0076] More preferably, the interface on the condensed water recovery unit is connected to the suction port of the degasser 44, the discharge port of the degasser 44 is connected to the interface of the steam generating unit, the interface on the buffer zero pressure unit is connected to the suction port of the mixed flow booster, and the discharge port of the mixed flow booster is connected to the interface of the steam generating unit, wherein the mixed flow booster is an ejector, which uses the pressurized mixed flow technology to increase the flash steam pressure to more than 2 bar under low back pressure or even no back pressure of the steam or condensed water vapor two-phase flow;

[0077] Furthermore, the steam generating unit has a first heater built in, and the buffer zero pressure unit has a second heater built in, the external steam is connected to the inlet of the first heater, the outlet of the first heater is connected to the inlet of the second heater through a pipeline, and the outlet of the second heater is connected to the interface of the condensate recovery unit through a steam water valve group, wherein the first heater and the second heater are electric heating coils for maintaining a constant internal temperature of the steam.

[0078] Preferably, the interface of the steam generating unit is connected to the vacuum system 52 through an automatic valve 42, the interface of the steam generating unit is connected to the interface of the buffer zero pressure unit through an automatic valve 42, and the interface of the buffer zero pressure unit is connected to the interface of the condensate recovery unit through an automatic valve 42; the condensate recovery unit is installed with a first pressure gauge 43, a first thermometer 41 and a liquid level gauge, the buffer zero pressure unit is installed with a second pressure gauge 45, a second thermometer 46, and a third pressure gauge and a third thermometer are installed on the steam generating unit. The buffer zero pressure unit includes a pressure regulating tank for eliminating the pressure difference of the recovery tank 10 and keeping the recovery system smooth. The first pressure gauge 43 is connected to a pressure sensor to detect the pressure in the recovery tank 10 and the liquid collecting pipe in real time. The condensate recovery unit determines the liquid level through the liquid level gauge and the pointer 3233.

[0079] Working principle: The high-temperature and high-pressure steam condensate of different pressures discharged from the steam-using equipment in the boiler room and the tobacco production workshop is collected into the recovery tank 10 through the recovery pipe network and the liquid collecting pipe 12. The filter chamber opening is adjusted according to the pressure in the liquid collecting pipe 12 and the pressure data is output. At the same time, the steam separation mechanism 30 realizes the monitoring and intuitive display of the condensate level. The filter disc 22 realizes the filtration of the recovered condensate to remove tobacco particle impurities and rust impurities and improve the steam quality. The flash steam enters the mixed flow booster through the steam pipe 3221, and finally enters the steam tank and is reused in the rehumidifier 53. The condensate in the recovery tank 10 enters the zero-pressure tank 51 through the valve pump, wherein the valve pump is a mechanical pump;

[0080] A zero-pressure tank 51 is arranged downstream of the recovery tank to keep the recovery system smooth. The zero-pressure tank 51 is provided with pressure measurement and temperature measurement devices, and a steam heating coil is arranged inside. The heating coil is automatically turned on according to the pressure and temperature changes to increase the latent heat energy of the condensed water. Since the pressure in the zero-pressure tank 51 is stable, the high-temperature condensed water is completely evaporated into steam. A steam trap assembly is arranged downstream of the heating coil, and the condensed water enters the recovery tank. The pressure of the zero-pressure tank 51 is 1.05 bar, and the critical saturated steam inside enters the steam tank through the mixed flow booster. The mixed flow booster is an ejector, and the pressure of the steam or condensed water vapor two-phase flow is increased to more than 2 bar by using the pressurized mixed flow technology. A steam generator tank 54 is also provided. The steam generator tank 54 is provided with a pressure and temperature measurement device, and a steam heating coil is arranged inside. The heat enthalpy is automatically supplemented according to the pressure and temperature changes to keep the pressure stable. The pressure of the steam tank is not less than 3.0 bar, and the internal steam is transferred to the rehumidifier 53. The wet steam with water is more conducive to moisturizing the tobacco leaves.

[0081] In summary, when in use, the user will let the steam condensate flow rate of multiple channels with different pressures of 1000kg / h enter the condensate recovery tank 10 through the closed pipeline. There is a two-phase coexistence of flash steam and condensate in the tank, and the temperature is 93°C. The flash steam generation amount is about 172kg / h and enters the degasser 44 through the interface S4. The working steam pressure of the degasser 44 is 1.0bar, and the flow rate is 686kg / h. It is mixed with the flash steam and boosted to 0.3MPa. The total flow rate is 858kg / h and enters the steam generating tank 54; a heater is provided in the steam generating tank 54, and the pressure and temperature are automatically controlled to stably reach 0.3MPa to ensure the pressure stability of the steam-using equipment. The condensate passes through the high-temperature pump at a flow rate of 200kg / h is discharged to the zero-pressure tank 51, and the 93°C saturated water is automatically supplemented with 546kcal / kg of heat energy by the heater to evaporate into 0.1MPa steam. The steam is pressurized to 0.3MPa by the mixed-flow turbocharger 47 and enters the steam generating tank 54 at a flow rate of 1198kg / h. The degassing device 44 and the mixed-flow turbocharger 47 provide 0.3MPa / steam to the steam generating tank 54 at a flow rate of 2056kg / h to meet the needs of the steam-using equipment. In this embodiment, the fresh steam consumed by the degassing device 44 and the mixed-flow turbocharger 47 is about 1643kg / h, which saves 25% of the steam consumption, improves the working efficiency of the equipment, increases the amount of flash steam generated, reduces the use of fresh steam, and finally reduces the energy consumption.

[0082] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A condensate recovery device, characterized in that: include: A recovery tank (10), comprising a tank body (11) and a liquid collecting pipe (12) arranged on the outer wall of the tank body (11), the liquid collecting pipe (12) being connected to the tank body (11) and being arranged on the upper side of the outer wall of the tank body (11), the liquid collecting pipe (12) being connected to each area of ​​the steam pipe network respectively, and conveying condensed water to the interior of the tank body (11); The opening control mechanism (20) comprises a filter cavity (21) and a filter disc (22) rotatably disposed in the filter cavity (21), the filter disc (22) being eccentrically disposed with respect to the liquid collecting pipe (12), the center of the circle of the liquid collecting pipe (12) being located in the outer circumferential area of ​​the filter disc (22), the filter disc (22) being concentrically disposed with two filter discs (22) rotating in opposite directions, and the filter disc (22) being provided with a filter groove (221); The steam separation mechanism (30) comprises a buffer chamber (31) and a separation bar (32) rotatably arranged in the buffer chamber (31); a pressure-stabilizing tube (34) is further arranged on the upper end surface of the buffer chamber (31); the buffer chamber (31) is sleeved on the outer wall of the liquid collecting pipe (12) and the opening direction of the pressure-stabilizing tube (34) faces upward; the separation bar (32) is arranged obliquely; a spring is arranged between the separation bar (32) and the buffer chamber (31); the spring drives the separation bar (32) to automatically reset.

2. The condensate recovery device according to claim 1, characterized in that: Two filter discs (22) are rotatably arranged in the filter cavity (21), namely a first filter disc (211) and a second filter disc (212). A boss (213) is arranged on the outer walls of one side of the first filter disc (211) and the second filter disc (212) that are close to each other.

3. The condensate recovery device according to claim 2, characterized in that: A first transmission rod (2111) and a second transmission rod (2121) are respectively provided on the right end surface of the first filter disc (211) and the right end surface of the second filter disc (212); the first transmission rod (2111) rotates through the second transmission rod (2121); A bracket (311) is fixedly provided on the lower end surface of the buffer chamber (31), a transmission gear (3111) is rotatably provided in the bracket (311), one end of the second transmission rod (2121) penetrating into the bracket (311) is provided with a second driven gear (2122), and one end of the first transmission rod (2111) penetrating into the bracket (311) is provided with a first driven gear (2112).

4. The condensed water recovery device according to claim 3, characterized in that: A transmission shaft (3112) is provided at one end of the transmission gear (3111); one end of the transmission shaft (3112) rotates through the bracket (311) and is provided with a control column (3113); and a control groove (3114) is provided on the control column (3113); The control groove (3114) comprises a right-angle groove (3115) and an oblique groove (3116), and a control rod (33) is slidably arranged in the control groove (3114), and when the control rod (33) slides along the oblique groove (3116), it drives the control column (3113) to rotate.

5. The condensed water recovery device according to claim 4, characterized in that: Arc walls (313) are provided on both sides of the buffer chamber (31), and the side surfaces of the separation bar (32) are respectively slidably fitted with the arc walls (313) on both sides. A floating block (321) and a sinker (324) are respectively provided on both sides of the upper end surface of the separation bar (32). The floating block (321) and the sinker (324) are used to drive the separation bar (32) to rotate when the water level in the buffer chamber (31) rises.

6. The condensed water recovery device according to claim 5, characterized in that: A transfer bin (322) is provided on the arc wall (313) at one end of the floating block (321); a steam pipe (3221) is provided on the upper end surface of the transfer bin (322); and an overflow port (3222) is provided on the lower end surface of the transfer bin (322).

7. The condensed water recovery device according to claim 6, characterized in that: A rotating shaft (323) is provided between the separation lever (32) and the buffer chamber (31); the rotating shaft (323) rotates through the buffer chamber (31) and is sleeved with a rotating disk (3231) at one end extending to the outside; teeth (3232) are provided in a circular array on the outer wall of the rotating disk (3231); a pointer (3233) is also provided at the end of the rotating shaft (323); and the liquid level relationship in the buffer chamber (31) is judged by the pointing angle of the pointer (3233); A slider (314) is slidably provided on the outer wall of the buffer cavity (31), a rack (3141) is provided on the outer wall of the slider (314), a connecting frame (3142) is provided on one end of the slider (314) that slides out to the outer wall of the buffer cavity (31), and two ends of the connecting frame (3142) are respectively connected to the slider (314) and the control column (3113).

8. A steam conversion and humidification system, based on the condensate recovery device of claim 7, comprising a condensate recovery unit, a buffer zero pressure unit, a steam generation unit, and a high temperature pump, characterized in that: The condensate recovery unit is connected to each area of ​​the steam network through a collecting pipe (12) to recover condensate from each area. The condensate recovery unit collects condensate through the condensate recovery device as described in claim 7 and monitors the condensate pressure and liquid level at the same time. The interface of the condensate recovery unit is connected to the interface of the buffer zero pressure unit through a pipeline, a valve and a high-temperature pump. The interface of the buffer zero pressure unit is connected to the interface of the steam generating unit, and the interface of the steam generating unit is connected to the steam-using equipment.

9. The steam conversion and humidification system according to claim 8, characterized in that: It also includes a degassing device (44) and a mixed flow supercharger (47), wherein the interface on the condensed water recovery unit is connected to the suction port of the degassing device (44), the discharge port of the degassing device (44) is connected to the interface of the steam generating unit, the interface on the buffer zero pressure unit is connected to the suction port of the mixed flow supercharger (47), and the discharge port of the mixed flow supercharger is connected to the interface of the steam generating unit; The steam generating unit has a first heater built in, the buffer zero pressure unit has a second heater built in, external steam is connected to the inlet of the first heater, the outlet of the first heater is connected to the inlet of the second heater through a pipeline, and the outlet of the second heater is connected to the interface of the condensate recovery unit through a steam water valve group.

10. The steam conversion and humidification system according to claim 9, characterized in that: The interface of the steam generating unit is connected to the vacuum system (52) via an automatic control valve (42), the interface of the steam generating unit is connected to the interface of the buffer zero pressure unit via an automatic control valve (42), and the interface of the buffer zero pressure unit is connected to the interface of the condensate recovery unit via an automatic control valve (42); the condensate recovery unit is equipped with a first pressure gauge (43), a first temperature gauge (41), and a water level gauge, the buffer zero pressure unit is equipped with a second pressure gauge (45), a second temperature gauge (46), and the steam generating unit is equipped with a third pressure gauge and a third temperature gauge.

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