CN204199111U - Three-area steam box - Google Patents

Three-area steam box Download PDF

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Publication number
CN204199111U
CN204199111U CN 201420484759 CN201420484759U CN204199111U CN 204199111 U CN204199111 U CN 204199111U CN 201420484759 CN201420484759 CN 201420484759 CN 201420484759 U CN201420484759 U CN 201420484759U CN 204199111 U CN204199111 U CN 204199111U
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steam
area
air
extraction
box
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CN 201420484759
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Chinese (zh)
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刘建安
樊慧明
龙君
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华南理工大学
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Abstract

The utility model discloses a three-area steam box comprising a steam box body, a steam main and an air extraction main. A preheating chamber is arranged outside the steam body body; the outlet end of the steam main is connected with a condensate pipe; the preheating chamber is communicated with a pipe between the inlet end of the steam main and a main control valve through a preheating branch; the steam box body sequentially comprises an air extraction area, a steam injection area and a retention area along the forwarding direction of paper sheets, the bottom of the air extraction area is provided with a perforated plate, the bottom of the steam injection area is provided with a perforated plate, and the bottom of the retention area is open; the air extraction area is provided with an air extraction chamber which is communicated with the air extraction main through multiple air extraction branches. The air extraction area is arranged in the front of the steam box, so that the paper sheets can be avoided bringing air into the steam box, and condensing rate of steam and effect of heat transfer of the steam are lowered; the steam retention area is arranged in the rear of the steam box, and the steam which dost not transfer heat sufficiently in steam chambers continues transferring heat in retention chambers, so that utilization efficiency of the steam is heightened, and meanwhile, influence on the environment due to steam overflow is reduced.

Description

一种三区蒸汽箱 A three-zone steam box

技术领域 FIELD

[0001] 本实用新型涉及制浆造纸技术领域,尤其涉及一种三区蒸汽箱。 [0001] The present invention relates to pulp and paper technology, and particularly relates to a three-section of the steam box.

背景技术 Background technique

[0002] 蒸汽箱沿纸张横幅喷射蒸汽,蒸汽在纸张中冷凝,释放潜热,从而提高湿纸幅的温度、降低湿纸幅中水的表面张力和粘度,能改善网部、压榨部的脱水能力和烘缸部的干燥能力,同时能调节纸张横幅水分含量的均匀性,能改善压光后纸张的印刷性能和涂布纸的涂布性能,及印刷性能的横幅均匀性,因此蒸汽箱广泛地应用于各种纸机,特别是对产品质量要求比较高的特种纸机上。 [0002] The steam box in the paper banners injection of steam, the steam condensed in the paper, the release of latent heat, thereby increasing the temperature of the wet paper web to reduce the surface tension and viscosity of the wet paper web in water, can improve the network portion, the dewatering capacity of the press section and drying capacity of the dryer section, can be adjusted while the uniformity of the moisture content of the banner paper, can be calendered to improve the coating properties and printability of coated paper after the paper, and uniformity of the banner printing performance, it is widely to the steam box used in various papers, especially for higher product quality requirements on the specialty paper machine.

[0003] 影响蒸汽箱作用效果的因素除蒸汽的温度、蒸汽湿度、蒸汽的流量等因素以外,蒸汽与纸张接触的时间和蒸汽中不凝气体的含量也是两个非常重要的因素。 [0003] The effect of the steam box factors other than the temperature of the steam, the steam humidity, flow rate of steam and other factors, time and steam in the steam contact with the sheet non-condensable gas content are two very important factors.

[0004] 热量从蒸汽传给纸张的过程需要一定的时间,时间越长,蒸汽向纸张热量传递越彻底,蒸汽与纸张接触的时间越短,蒸汽传热效果越差,随着纸机速度的不断提高,这个因素的影响越来越显著。 [0004] The steam from the heat to the paper process takes some time, the longer the time, the steam heat is transferred to the paper sheet more thoroughly, the shorter the time of contact with the paper steam, the steam heat transfer worse as the machine speed continue to improve, the impact of this factor is more and more significant.

[0005] 蒸汽中的不凝气体会大大降低蒸汽在纸张中的冷凝速度,提高蒸汽的传热效率必须是蒸汽中不能含有不凝气体。 [0005] The non-condensable gas steam vapor condensation experience greatly reduce the speed of the paper, improve the heat transfer efficiency of the steam in the steam must not contain non-condensable gases. 然而,纸张在运行过程中都会带入大量的空气,如果不采取措施,这些空气就会进入蒸汽箱与纸张组成的空间,从而降低蒸汽的传热效率。 However, the paper during operation will bring a lot of air, if no measures are taken, these will enter the air space consisting of a steam box and the paper, thereby reducing the heat transfer efficiency of steam.

[0006] 传统的设备没有措施阻止空气带入蒸汽箱喷射的蒸汽中,现在有些设备在蒸汽箱前纸张入口喷射大量蒸汽以图阻止由纸张带入的气流,但这种方法蒸汽的喷射量很难控制,如果蒸汽流量过大就会造成蒸汽外溢,浪费蒸汽,影响车间环境,如果流量过小又达不到阻止气流的目的。 [0006] The conventional apparatus is not measures to prevent air into the steam injection the steam box, and now some of the steam box prior to the sheet in the device inlet to inject a large amount of steam is prevented by the sheet of FIG flow into, but this method of steam injection amount is difficult to control, if the steam flow will cause excessive steam spills, waste steam, the impact workshop environment, if the flow is too small and not the purpose to stop the air flow.

发明内容 SUMMARY

[0007] 本实用新型的目的在于克服上述现有技术的缺点和不足,提供一种三区蒸汽箱,通过抽气区阻止纸张带入的空气流进入到蒸汽箱喷射的蒸汽中,喷汽区喷射蒸汽,通过滞留区延长蒸汽与纸张的接触时间,从而提高蒸汽的传热效率,提高蒸汽箱的调节效果。 [0007] The object of the present invention overcome the above disadvantages and drawbacks of the prior art, there is provided a three-zone steam boxes, into the paper to prevent air flow into the steam injection via the steam box extraction zone, steam spraying zone steam injection, to extend the contact time with the sheet by steam retention area, thereby increasing the heat transfer efficiency of the steam and enhance steam box modulating effects.

[0008] 本实用新型通过下述技术方案实现: [0008] The present invention is achieved by the following technical scheme:

[0009] 一种三区蒸汽箱,包括蒸汽箱、蒸汽总管I和抽气总管6,所述蒸汽总管I的入口端设有总管控制阀2 ; [0009] A three-zone steam box comprising a steam box, and steam header I exhaust manifold 6, the inlet end of the steam header I 2 is provided with a control valve manifold;

[0010] 所述蒸汽箱的外部设有预热室11 ;所述蒸汽总管I的出口端连接冷凝水管5 ;所述预热室11通过一个带有预热控制阀9的预热支管8连通在蒸汽总管I的入口端与总管控制阀2之间的管路上;所述预热室11连接有蒸汽回流管10,蒸汽回流管10上设有控制阀; [0010] The external steam box 11 is provided with a preheating chamber; outlet end of the steam header connected to the condensate line 5 I; the preheating chamber 11 through a communication with the preheat leg warm-up control valve 9 8 I steam header manifold inlet end of the line between the control valve 2; the preheating chamber 11 is connected with a vapor return tube 10, control valve 10 is provided with the vapor return tube;

[0011] 所述蒸汽箱沿纸张的前进方向依次包括:底部设有多孔板14或者缝型板的抽气区44、底部设有多孔板14或者缝型板的喷汽区33和底部开口的滞留区22 ; [0011] The advancing direction of the sheet sequentially along the steam box comprising: a bottom plate provided with slits 14 or a perforated plate extraction zone 44, 14 has a slit plate or perforated plate and the bottom of the steam spraying zone 33 at the bottom of the opening retention area 22;

[0012] 所述抽气区44具有一个抽气室44-1,抽气室44_1通过多个抽气支管7连通抽气总管6 ;抽气总管6与抽风机相连,用于抽走随纸张带入蒸汽箱的空气,在抽气总管6上设置控制阀; [0012] The extraction zone 44 having a suction chamber 44-1, the extraction chamber through the plurality of exhaust branch pipes 44_1 7 6 communicating the exhaust manifold; exhaust manifold 6 connected to the exhaust fan, with the paper for siphoned air into the steam box, the suction duct 6 is provided on the control valve;

[0013] 所述喷汽区33内具有多个独立的蒸汽室33-1 ;各个蒸汽室33_1分别通过相应的蒸汽支管3连通蒸汽总管I,每个蒸汽支管3上均设有控制阀;所述蒸汽支管3安装在总管控制阀2与冷凝水管5之间的蒸汽总管I的管路上; [0013] The steam spraying zone having a plurality of separate steam chamber 33 33-1; 33_1 respectively, each steam chamber through respective branch pipe 3 communicates vapor steam header I, each steam manifold 3 are provided with a control valve; the said steam header manifold 3 is mounted in the control valve between the steam header and the condensate pipe 5 I 2 of the pipeline;

[0014] 所述滞留区22内具有多个独立的滞留室22-1。 [0014] The retaining zone having a plurality of independent retention chamber 22 22-1.

[0015] 所述的抽气区44的横向宽度与喷汽区33相等,抽气区44的高度为喷汽区33高度的1/3〜1/2。 The [0015] suction region and the lateral width of the steam injection region 44 is equal to 33, 44 to the height of extraction zone 33 the height of the steam spraying zone 1 / 3~1 / 2.

[0016] 所述抽气支管7安装在抽气区44的顶部,抽气区44内的空气向上进入抽气支管7和抽气总管6内。 [0016] The exhaust manifold 7 is mounted on the top of the extraction zone 44, the air in the extraction zone 44 upwardly into the exhaust manifold and the exhaust manifold 7 6.

[0017] 所述的滞留区22横向宽度与喷汽区33相等,高度为喷汽区33的1/3〜1/2。 [0017] The lateral width of the retention area 22 and the steam jet region 33 is equal to the height of the steam spraying zone 33 1 / 3~1 / 2.

[0018] 所述的滞留区22的多个滞留室22-1沿纸机横向均匀分布,每个滞留室与喷汽区33的蒸汽室33-1 —一对应,沿纸机横向具有相同的宽度。 A plurality of retention chambers [0018] the retention region 22 uniformly distributed along the lateral 22-1 machine, each of the retentate chamber and the steam discharge chamber 33 of the steam zone 33-1-- one correspondence, the cross machine direction along the same width.

[0019] 采用上述三区蒸汽箱用于调节纸张的横幅水份含量的方法如下: [0019] The moisture content of the banner area of ​​the steam box for adjusting the three sheets are as follows:

[0020] 首先关闭抽气总管6上的控制阀和总管控制阀2,打开预热支管8上的预热控制阀9和蒸汽回流管10上的控制阀,对整个蒸汽箱进行预热,防止蒸汽进入蒸汽箱中和抽风机抽气时产生冷凝水;当蒸汽箱的温度达到蒸汽的温度时,预热完成,蒸汽箱开始工作,控制预热支管8和蒸汽回流管10上的蒸汽流量; [0020] First control valve shutting off the exhaust manifold and the control valve on the manifold 62, opening on the warm-up control valve 8, the preheat leg 9 and the control valve on the vapor return tube 10, preheat of the entire steam box, to prevent steam into the steam blower box and when the exhaust condensed water; when the temperature of the steam temperature of the steam reaches the tank, the preheating is finished, the steam box to work, controls the preheat leg 8 and the steam flow on a steam return pipe 10;

[0021] 打开抽气总管6上的控制阀开始抽气,通过控制阀调节抽气量,抽走随纸张带入的空气,阻止空气进入蒸汽箱喷射的蒸汽中; [0021] The opening control valve 6 starts pumping exhaust manifold, the exhaust volume adjusted by a control valve, with the pumped air into the sheet, preventing air from entering the steam injection the steam box;

[0022] 打开总管控制阀2,蒸汽通过蒸汽支管3进入到蒸汽箱的各蒸汽室33-1中,控制与蒸汽室33-1对应蒸汽支管3的蒸汽流量,通过控制各蒸汽室33-1的蒸汽流量调节对应部位纸张的水分含量,蒸汽从各蒸汽室33-1的多孔板14均匀的喷射到纸张上,获得调节纸页横幅水份含量。 [0022] The manifold valve 2 is opened, the steam through the steam manifold into the steam box 3 to the respective steam chamber 33-1, 33-1 corresponding to the control chamber and the steam steam steam flow manifold 3 by controlling each steam chamber 33-1 steam flow rate adjusting portion corresponding to the moisture content of the paper, each of the steam from the steam chamber 33-1 of the porous plate 14 uniformly onto the paper ejection to obtain a moisture content adjusted banner sheet.

[0023] 本实用新型相对于现有技术,具有如下的优点及效果: [0023] The present invention relative to the prior art, has the following advantages and effects:

[0024] 在蒸汽箱前部设置抽气区,从而避免了纸张带入空气进入蒸汽箱中,降低蒸汽的冷凝速度和蒸汽的传热效果。 [0024] The extraction zone is provided at the front portion of the steam box, the heat transfer sheet so as to avoid air entrapment into the steam box, and reducing the rate of condensation of the vapor steam.

[0025] 在蒸汽箱后部设置蒸汽滞留区,使蒸汽室中没有充分传热的蒸汽在滞留室中继续传热,这样一方面提高了蒸汽的利用效率,同时减少蒸汽外溢对环境的影响。 [0025] a steam retention area in the rear portion of the steam box, the steam is not sufficiently heat the heat transfer in the steam chamber continued retention chamber, so that on the one hand to improve the utilization efficiency of the steam, and steam while reducing the environmental impact of spills.

[0026] 喷汽区底部设有多孔板或者缝型板,使蒸汽更加均匀地喷到纸页上。 [0026] bottom of the stripping zone is provided with perforated discharge plate or a slit plate, the steam more uniformly sprayed onto the sheet.

[0027] 滞留区由隔板沿横向均匀分为多个滞留室,每个滞留室与喷汽区的蒸汽室一一对应,沿纸机横向具有相同的宽度,从而对应的蒸汽室没有充分传热的蒸汽在滞留室中与纸张继续接触传热,增加了蒸汽的利用率,同时减少了蒸汽箱中蒸汽的外溢。 [0027] retention area in the lateral direction by a partition into a plurality of uniform retention chamber, the retention chamber and a steam chamber of each vapor discharge region correspond, along the cross machine direction have the same width, so as to correspond to the steam chamber is not sufficiently pass steam heat retention chamber in contact with the paper to continue to heat, increase the utilization of steam, while reducing the steam in the steam box spillover. .

[0028] 蒸汽支管安装在蒸汽总管上总管控制阀2和冷凝水管5之间,沿纸机的横向均匀分布,与蒸汽室相对应,每个蒸汽室与一根蒸汽支管相通,蒸汽支管是从侧面进入蒸汽室中的,也就是说进汽的方向与蒸汽喷向纸页的方向平行,这样一方面避免了蒸汽冲击纸页产生的不利影响,另一方面防止了蒸汽中可能带有的冷凝水喷到纸页上。 [0028] The steam manifold installed on the steam header between the header control valve 2 and the condensate pipe 5, uniformly distributed in the transverse direction of the machine, corresponding to the steam chamber, each steam chamber in communication with a steam branch pipe, the steam from the manifold side into the steam chamber, that is to say the direction of inlet steam of the steam sprayed into a direction parallel to the sheet, so that on the one hand to avoid the adverse effects of the impact of the steam produced sheet, on the other hand prevents condensation of steam which may be present water is sprayed onto the sheet.

[0029] 所述的蒸汽箱的抽气区沿纸张的横向没有分区,内部区域为一个整体即只有一个抽气室,抽气区通过沿纸机横向均匀分布的多根抽气支管与抽气总管相连,抽气总管与抽风机相连,从而抽走随纸张带入蒸汽箱的空气,抽气总管上带有控制阀,可以控制抽气区中排出气体的流量。 [0029] The extraction zone of the steam box is not in the sheet transverse partition, i.e. the inner region as a whole has only one pumping chamber, a plurality of suction extraction zone through exhaust manifold and evenly distributed in the cross machine direction manifold connected to the exhaust manifold is connected to the exhaust fan, so that air is pumped into the steam box with the paper, the exhaust manifold with the control valve, may control the flow rate of gas extraction zone is discharged.

附图说明 BRIEF DESCRIPTION

[0030] 图1为本实用新型整体结构示意图。 [0030] Figure 1 is a schematic view of an overall configuration of invention.

[0031] 图2为图1中AA剖面结构示意图。 [0031] FIG. 2 is a schematic cross-sectional view AA of FIG. 1 configuration.

[0032] 图3为图2中BB剖面结构示意图。 [0032] FIG. 3 is a schematic cross-sectional structural view BB 2.

[0033] 图4为图2中CC剖面结构示意图。 [0033] FIG. 4 is a schematic cross-sectional structural view of the CC 2.

[0034] 图5为图2中DD剖面结构示意图。 [0034] FIG. 5 is a schematic cross-sectional structure in FIG 2 DD.

[0035] 图6为多孔板14结构示意图。 [0035] FIG. 6 is a schematic structural diagram of a porous plate 14.

具体实施方式 detailed description

[0036] 下面结合具体实施例对本实用新型作进一步具体详细描述。 Specific examples further specifically described in detail for the present invention [0036] The following binding.

[0037] 实施例 [0037] Example

[0038] 如图1至图6所示。 As shown in [0038] FIGS. 1 to 6. 本实用新型三区蒸汽箱,包括蒸汽箱、蒸汽总管I和抽气总管6,所述蒸汽总管I的入口端设有总管控制阀2 ; The present invention three regions of the steam box comprising a steam box, and steam header I exhaust manifold 6, the inlet end of the steam header I 2 is provided with a control valve manifold;

[0039] 所述蒸汽箱的外部设有预热室11 ;所述蒸汽总管I的出口端连接冷凝水管5 ;所述预热室11通过一个带有预热控制阀9的预热支管8连通在蒸汽总管I的入口端与总管控制阀2之间的管路上;所述预热室11连接有蒸汽回流管10,蒸汽回流管10上设有控制阀; [0039] The external steam box 11 is provided with a preheating chamber; outlet end of the steam header connected to the condensate line 5 I; the preheating chamber 11 through a communication with the preheat leg warm-up control valve 9 8 I steam header manifold inlet end of the line between the control valve 2; the preheating chamber 11 is connected with a vapor return tube 10, control valve 10 is provided with the vapor return tube;

[0040] 所述的蒸汽回流管10安装在预热室11的另一端,用于排出预热室11中的蒸汽和冷凝水,预热蒸汽通过预热支管7进入预热室11中,然后从另一端通过蒸汽回流管10排出,排出的预热蒸汽和冷凝水经过排水和加热处理后可以再回箱体预热室中循环利用。 [0040] The vapor return tube 10 is mounted at the other end of the preheating chamber 11, for discharging steam and condensate preheating chamber 11, the preheating by the preheat leg steam 7 enters the preheating chamber 11, and then steam return pipe 10 is discharged from the other end by preheating steam and condensate discharged from the drain after heating treatment can return to the tank preheating chamber recycling.

[0041] 所述蒸汽箱沿纸张的前进方向依次包括:底部多孔板14或者缝型板的抽气区44、底部设有多孔板14或者缝型板的喷汽区33和底部开口的滞留区22 ; [0041] The advancing direction of the sheet sequentially along the steam box comprising: a bottom plate 14 perforated plate or a slit 44 of the extraction zone, or a slit plate 14 provided with a porous plate 33 and the steam spraying zone stagnant zone at the bottom of the bottom opening twenty two ;

[0042] 所述抽气区44具有一个抽气室44-1,抽气室44_1通过多个抽气支管7连通抽气总管6;抽气总管6与抽风机(图中未示出)相连,用于抽走随纸张带入蒸汽箱的空气,在抽气总管6上设置控制阀; [0042] The extraction zone 44 having a suction chamber 44-1, the extraction chamber through the plurality of exhaust branch pipes 44_1 7 6 communicating the exhaust manifold; exhaust manifold 6 and the exhaust fan (not shown) for air pumped into the steam box with the sheet, a control valve disposed in the exhaust manifold 6;

[0043] 所述喷汽区33内具有多个独立的蒸汽室33-1 ;各个蒸汽室33_1分别通过相应的蒸汽支管3连通蒸汽总管I,每个蒸汽支管3上均设有控制阀;所述蒸汽支管3安装在总管控制阀2与冷凝水管5之间的蒸汽总管I的管路上; [0043] The steam spraying zone having a plurality of separate steam chamber 33 33-1; 33_1 respectively, each steam chamber through respective branch pipe 3 communicates vapor steam header I, each steam manifold 3 are provided with a control valve; the said steam header manifold 3 is mounted in the control valve between the steam header and the condensate pipe 5 I 2 of the pipeline;

[0044] 所述滞留区22内具有多个独立的滞留室22-1。 [0044] The retaining zone having a plurality of independent retention chamber 22 22-1.

[0045] 所述的抽气区44的横向宽度与喷汽区33相等,抽气区44的高度为喷汽区33高度的1/3〜1/2。 The [0045] suction region and the lateral width of the steam injection region 44 is equal to 33, 44 to the height of extraction zone 33 the height of the steam spraying zone 1 / 3~1 / 2.

[0046] 所述抽气支管7安装在抽气区44的顶部,抽气区44内的空气向上进入抽气支管7和抽气总管6内。 [0046] The exhaust manifold 7 is mounted on the top of the extraction zone 44, the air in the extraction zone 44 upwardly into the exhaust manifold and the exhaust manifold 7 6.

[0047] 所述的滞留区22横向宽度与喷汽区33相等,高度为喷汽区33的1/3〜1/2。 [0047] The lateral width of the retention area 22 and the steam jet region 33 is equal to the height of the steam spraying zone 33 1 / 3~1 / 2.

[0048] 所述的滞留区22的多个滞留室22-1沿纸机横向均匀分布,每个滞留室与喷汽区33的蒸汽室33-1 —一对应,沿纸机横向具有相同的宽度。 A plurality of retention chambers [0048] the retention region 22 uniformly distributed along the lateral 22-1 machine, each of the retentate chamber and the steam discharge chamber 33 of the steam zone 33-1-- one correspondence, the cross machine direction along the same width.

[0049] 采用三区蒸汽箱,调节纸张的横幅水份含量的方法,通过如下步骤实现: [0049] The three-zone steam box process banner paper moisture content adjustment is achieved by the steps of:

[0050] 首先关闭抽气总管6上的控制阀和总管控制阀2,打开预热支管8上的预热控制阀9和蒸汽回流管10上的控制阀,对整个蒸汽箱进行预热,防止蒸汽进入蒸汽箱中和抽风机抽气时产生冷凝水;当蒸汽箱的温度达到蒸汽的温度时,预热完成,蒸汽箱开始工作,控制预热支管8 (适当关小)和蒸汽回流管10上的蒸汽流量; [0050] First control valve shutting off the exhaust manifold and the control valve on the manifold 62, opening on the warm-up control valve 8, the preheat leg 9 and the control valve on the vapor return tube 10, preheat of the entire steam box, to prevent steam into the steam blower box and when the exhaust condensed water; when the temperature of the steam temperature of the steam reaches the tank, the preheating is finished, the steam box to work, controls the preheat leg 8 (a suitable off small) and the vapor return duct 10 steam flow on;

[0051] 打开抽气总管6上的控制阀开始抽气,通过控制阀调节抽气量,抽走随纸张带入的空气,阻止空气进入蒸汽箱喷射的蒸汽中; [0051] The opening control valve 6 starts pumping exhaust manifold, the exhaust volume adjusted by a control valve, with the pumped air into the sheet, preventing air from entering the steam injection the steam box;

[0052] 打开总管控制阀2,蒸汽通过蒸汽支管3进入到蒸汽箱的各蒸汽室33-1中,控制与蒸汽室33-1对应蒸汽支管3的蒸汽流量,通过控制各蒸汽室33-1的蒸汽流量调节对应部位纸张的水分含量,蒸汽从各蒸汽室33-1的多孔板14均匀的喷射到纸张上,获得调节纸页横幅水份含量。 [0052] The manifold valve 2 is opened, the steam through the steam manifold into the steam box 3 to the respective steam chamber 33-1, 33-1 corresponding to the control chamber and the steam steam steam flow manifold 3 by controlling each steam chamber 33-1 steam flow rate adjusting portion corresponding to the moisture content of the paper, each of the steam from the steam chamber 33-1 of the porous plate 14 uniformly onto the paper ejection to obtain a moisture content adjusted banner sheet.

[0053] 滞留区22位于喷汽区33的后面,每个滞留室22_1与蒸汽室33_1 —一对应,在喷汽区没有完成传热的蒸汽在滞留室中与纸张继续接触传热,增加了蒸汽的利用率,同时减少了蒸汽箱中蒸汽的外溢。 [0053] retention area 22 located behind the steam discharge region 33, each of the retention chamber 22_1 and 33_1 steam chamber - a correspondence, in the steam spraying steam heat transfer area is not completed in the heat retention chamber into contact with the paper to continue to increase the steam utilization, while reducing the steam in the steam box spillover.

[0054] 如上所述,便可较好地实现本实用新型。 [0054] As described above, can preferably implement the present invention.

[0055] 本实用新型的实施方式并不受上述实施例的限制,其他任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化,均应为等效的置换方式,都包含在本实用新型的保护范围之内。 [0055] The embodiments of the present invention is not limited to the above embodiments, any other changes made to the present invention without departing from the spirit and principle of the modified, substituted, combined, simplified, substitution of equivalent effect manner, are included within the scope of protection of the present invention.

Claims (6)

  1. 1.一种三区蒸汽箱,包括蒸汽箱、蒸汽总管(I)和抽气总管(6),所述蒸汽总管(I)的入口端设有总管控制阀(2);其特征在于: 所述蒸汽箱的外部设有预热室(11);所述蒸汽总管(I)的出口端连接冷凝水管(5);所述预热室(11)通过一个带有预热控制阀(9)的预热支管(8)连通在蒸汽总管(I)的入口端与总管控制阀(2)之间的管路上;所述预热室(11)连接有蒸汽回流管(10),蒸汽回流管(10)上设有控制阀; 所述蒸汽箱沿纸张的前进方向依次包括:底部设有多孔板(14)或者缝型板的抽气区(44)、底部设有多孔板(14)或者缝型板的喷汽区(33)和底部开口的滞留区(22); 所述抽气区(44)具有一个抽气室(44-1),抽气室(44-1)通过多个抽气支管(7 )连通抽气总管(6);抽气总管6与抽风机相连,用于抽走随纸张带入蒸汽箱的空气,在抽气总管(6)上设置控制阀; 所述喷汽区(33)内具有多个独立的蒸汽室(33-1);各个蒸 1. A three-zone steam box comprising a steam box, the steam header (I) and exhaust manifold (6), the steam header (I) is provided with an inlet end of the manifold control valve (2); characterized in that: the said steam box is provided outside the preheating chamber (11); the outlet end of said steam header (I) is connected to the condensate line (5); said preheating chamber (11) having a warm-up control valve (9) preheating branch (8) in communication with the steam header (I) an inlet end of manifold line between the control valve (2); the preheating chamber (11) connected to a steam return pipe (10), steam return pipe (10) provided with a control valve; steam box in the traveling direction of the paper sheet sequentially comprising: a perforated plate provided with (14) or a slit plate extraction zone (44) at the bottom, with a bottom perforated plate (14) or the slit plate steam spraying zone (33) and a bottom opening of the retention area (22); said extraction zone (44) having a suction chamber (44-1), the suction chamber (44-1) through a plurality of exhaust manifold (7) communicating the suction duct (6); and the blower suction duct 6 connected to the air pumped into the steam box with the sheet, a control valve disposed in the exhaust manifold (6); the steam spraying zone having a plurality of separate steam chamber (33-1) of (33); each evaporated 汽室(33-1)分别通过相应的蒸汽支管(3)连通蒸汽总管(1),每个蒸汽支管(3)上均设有控制阀;所述蒸汽支管(3)安装在总管控制阀(2)与冷凝水管5之间的蒸汽总管(I)的管路上; 所述滞留区(22)内具有多个独立的滞留室(22-1)。 Steam chamber (33-1) are in communication through the respective steam manifolds (3) steam header (1), each steam manifold (3) are provided with a control valve; said steam manifold (3) mounted on the control valve manifold ( 2 between the steam header) and condensate pipe 5 (I) of the pipeline; retention region having a plurality of independent retention chamber (22-1)) (22.
  2. 2.根据权利要求1所述的三区蒸汽箱,其特征在于:所述的抽气区(44)的横向宽度与喷汽区(33)相等,抽气区(44)的高度为喷汽区(33)高度的1/3〜1/2。 The three areas of the steam box as claimed in claim 1, wherein: said extraction zone (44) and the lateral width of the steam injection zone (33) equal to the height of the suction zone (44) is a steam jet region (33) height 1 / 3~1 / 2.
  3. 3.根据权利要求2所述的三区蒸汽箱,其特征在于:所述抽气支管(7)安装在抽气区(44)的顶部,抽气区(44)内的空气向上进入抽气支管(7)和抽气总管(6)内。 The three areas of the steam box of claim 2, wherein: said exhaust manifold (7) mounted on the top of the extraction zone (44) of the suction zone (44) into the exhaust air upwardly manifold (7) and exhaust manifold (6).
  4. 4.根据权利要求2所述的三区蒸汽箱,其特征在于:所述的滞留区(22)横向宽度与喷汽区(33)相等,高度为喷汽区(33)的1/3〜1/2。 Three regions according to claim 2 of the steam box, wherein: said retention area (22) and the steam spraying zone transverse width (33) equal to the height of the steam spraying zone (33) is 1/3 ~ 1/2.
  5. 5.根据权利要求1所述的三区蒸汽箱,其特征在于:所述的滞留区(22)的多个滞留室(22-1)沿纸张进入方向的横向均匀分布;与喷汽区(33)的蒸汽室(33-1) 一一对应,且具有相同的宽度。 The steam spraying zone (; said retention area (22) a plurality of retention chambers (22-1) are uniformly distributed along the lateral direction into the paper: the three areas according to claim 1, said steam box, wherein 33) a steam chamber (33-1) correspond, and have the same width.
  6. 6.根据权利要求1所述的三区蒸汽箱,其特征在于:所述的蒸汽回流管(10)安装在预热室(11)的另一端,用于排出预热室(11)中的蒸汽和冷凝水。 The three areas of the steam box as claimed in claim 1, wherein: said steam return pipe (10) is mounted on the other end of the preheating chamber (11) for discharging the preheating chamber (11) steam and condensate.
CN 201420484759 2014-08-26 2014-08-26 Three-area steam box CN204199111U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213457A (en) * 2014-08-26 2014-12-17 华南理工大学 Three-area steam box and method for regulating moisture content of banner of paper
CN104746379A (en) * 2015-03-19 2015-07-01 华南理工大学 Steam box adopting hot air and overheated steam and method for adjusting paper sheet moisture
CN104746378A (en) * 2015-03-19 2015-07-01 华南理工大学 Steam box adopting air and superheated steam and method for adjusting paper moisture
CN105088852A (en) * 2015-07-08 2015-11-25 华南理工大学 Steam box and method for preventing condensate water from dripping

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213457A (en) * 2014-08-26 2014-12-17 华南理工大学 Three-area steam box and method for regulating moisture content of banner of paper
CN104213457B (en) * 2014-08-26 2016-05-04 华南理工大学 A method of three areas and the steam box regulation banner sheet moisture content
CN104746379A (en) * 2015-03-19 2015-07-01 华南理工大学 Steam box adopting hot air and overheated steam and method for adjusting paper sheet moisture
CN104746378A (en) * 2015-03-19 2015-07-01 华南理工大学 Steam box adopting air and superheated steam and method for adjusting paper moisture
CN105088852A (en) * 2015-07-08 2015-11-25 华南理工大学 Steam box and method for preventing condensate water from dripping

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