CN204059091U - A kind of steam chest - Google Patents
A kind of steam chest Download PDFInfo
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- CN204059091U CN204059091U CN201420484758.2U CN201420484758U CN204059091U CN 204059091 U CN204059091 U CN 204059091U CN 201420484758 U CN201420484758 U CN 201420484758U CN 204059091 U CN204059091 U CN 204059091U
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- constant current
- steam
- regulatory region
- pipe
- steam chest
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Abstract
The utility model discloses a kind of steam chest, the outside of steam chest is provided with preheating chamber; Preheating chamber is connected to the upstream of main steam range by pre-hot leg pipe; Steam chest comprises successively along the direction of advance of paper: constant current district, regulatory region, and the bottom of constant current district and regulatory region is provided with porous plate; The downstream pipe of main steam range is divided into constant current to distinguish pipe and regulatory region is in charge of; Constant current district is independent constant current room, and constant current room is distinguished pipe by constant current arm with constant current and is communicated with; Be multiple independently conditioning chambers by baffle for separating in regulatory region, and be in charge of with regulatory region by adjustment arm and be communicated with; Constant current district combines with regulatory region, and constant current is distinguished the caliber of pipe and is greater than the caliber that regulatory region is in charge of, and regulatory region steam flow is little, reduces the size of arm control valve; The length of regulatory region is greater than constant current district, is conducive to the abundant effect of steam and paper, adds the utilization ratio of steam; Decrease steam excessive, protect environment of manufacturing paper with pulp better.
Description
Technical field
The utility model relates to pulp and paper technology field, particularly relates to a kind of steam chest.
Background technology
Steam chest is along paper banner uperize, steam is condensation in paper, release latent heat, thus improve the temperature of wet web, the surface tension reducing water in wet web and viscosity, wet end, the water separation capability of press section and the drying capacity in drying cylinder portion can be improved, the uniformity of paper web moisture profile content can be regulated simultaneously, the printing performance of paper and the coating performance of coated paper after press polish can be improved, and the banner uniformity of printing performance, therefore steam chest is widely used in various paper machine, particularly requires on higher speciality paper machine product quality.
Steam chest generally has two objects, and one is the temperature or the humidity that increase page, and two is regulating actions, regulates the uniformity of paper banner water content, is beneficial to subsequent operation, obtains better paper performance.
Effect as wet end and press section steam chest: one is the temperature improving l Water Paper page, is conducive to dehydration, two is regulate the uniform object of l Water Paper page banner moisture content by regulating banner each point temperature to reach.Effect for the steam chest before calender: one is the humidity improving page, is conducive to calendering operation, two is the uniformities regulating page banner moisture content.
Traditional steam chest has often combined these two objects, as US Patent No. 4765067, US4685221, US5090133 etc., only be provided with a Ge Penqi district, all steam enters in this Pen Qi district, is entered the flow of each steaming chamber in Pen Qi district by Valve controlling.
Some steam chest has two or more Pen Qi district, as US Patent No. 4444622, US4915788, but other Pen Qi district object outside main jet vapour district is that formation gas curtain stops air to enter Pen Qi district or steam enters workshop, and realizing equally has one in the Pen Qi district of above-mentioned purpose.
Mean that steam chest needs to configure the larger by-pass valve control of flow like this, this can increase cost of investment undoubtedly.A large amount of steam pours in a Ge Penqi district and adds the excessive possibility of steam simultaneously, not only wastes steam but also destroy environment of manufacturing paper with pulp.On the other hand, the effect of steam and paper is needs processes, therefore certain contact time is very important, even if Pen Qi district long enough, all steam all sprays to a steam dome, all must have a large amount of steam not also to be able to do in time just to be taken out of by paper with paper effect to overflow in the environment outside steam chest, this had equally not only wasted steam but also had destroyed environment of manufacturing paper with pulp.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides a kind of steam chest.
The utility model is achieved through the following technical solutions:
A kind of steam chest, comprise the main steam range 1 be connected with steam chest, main steam range 1 is provided with house steward's control valve 2; For boundary in main steam range 1, with house steward's control valve 2, be divided into upstream and downstream pipe;
The outside of described steam chest is provided with preheating chamber 15; Preheating chamber 15 is connected to the upstream of main steam range 1 by pre-hot leg pipe 12, and the pipeline of pre-hot leg pipe 12 is provided with warm-up control valve 12;
Described steam chest comprises successively along the direction of advance of paper: constant current district 18, regulatory region 19, and the bottom of constant current district 18 and regulatory region 19 is provided with porous plate 16;
The downstream pipe of described main steam range 1 is divided into two branch roads, and one of them branch road is that pipe 3 is distinguished in constant current, and another branch road is that regulatory region is in charge of 7; The caliber that pipe 3 is distinguished in constant current is greater than the caliber that regulatory region is in charge of 7.
Described constant current district 18 is an independent constant current room, and constant current room is distinguished pipe 3 by the constant current arm 5 being distributed in top with constant current and is communicated with;
Be divided into multiple independently conditioning chamber by dividing plate 17 in described regulatory region 19, each conditioning chamber is all in charge of 7 by respective adjustment arm 9 with regulatory region and is communicated with;
The steam inlet end that pipe 3 and regulatory region are in charge of 7 is distinguished in described constant current, is respectively equipped with constant current and distinguishes pipe control valve 4 and regulatory region is in charge of control valve 8.
The jet direction of described constant current arm 5 and adjustment arm 9 is parallel to the paper page.
Each adjustment arm 9 is equipped with arm control valve 10.
The other end of described preheating chamber 15 is provided with opposing steam flow pipe 14 and control valve, utilizes and discharge the condensed water in preheating chamber 15 for making the vapor recycle in preheating chamber 15.
Constant current arm 5 and adjustment arm 9 are all laterally uniformly distributed along steam chest casing.
The end that pipe 3 is distinguished in described constant current connects condensate pipe 1 and drain valve; The end that regulatory region is in charge of 7 connects condensate pipe 2 11 and drain valve, is in charge of condensed water in 7 for discharging regulatory region.
The caliber regulating arm 9 is 1/3 of constant current arm 5 caliber; The diameter that regulatory region is in charge of 7 is that 1/3 of pipe 3 diameter is distinguished in constant current, and the flow that regulatory region is in charge of 7 is that 1/4 of pipe 3 steam flow is distinguished in constant current.
Above-mentioned steam chest is adopted to regulate the method for paper humiture as follows:
First, close house steward's control valve 2, pipe control valve 4 is distinguished in constant current and regulatory region is in charge of control valve 8;
Then, open the warm-up control valve 13 on pre-hot leg pipe 12 and the control valve on opposing steam flow pipe 14, make whole steam chest preheating, produce condensed water when preventing steam from entering in steam chest, when the temperature of steam chest casing reaches the temperature of steam, preheating completes; Steam chest is started working;
Open the house steward's control valve 2 in main steam range 1, pipe control valve 4 is distinguished in constant current and regulatory region is in charge of control valve 8, steam is by constant current arm 5 and regulate arm 9 to enter in constant current district 18 and regulatory region 19 respectively, be sprayed onto on paper by the hole on porous plate 16 again, thus regulate temperature or the humidity of each paper of banner.
The utility model, relative to prior art, has following advantage and effect:
Constant current district combines with regulatory region, and constant current is distinguished the caliber of pipe and is greater than the caliber that regulatory region is in charge of, and regulatory region steam flow is little, reduces the size of arm control valve 10.
Constant current district combines with regulatory region, and the length of regulatory region is greater than constant current district, is conducive to the abundant effect of steam and paper, adds the utilization ratio of steam.
Constant current district combines with regulatory region, decreases steam excessive, protects environment of manufacturing paper with pulp better.
Steam flow substantially invariable constant current district is utilized to spray a large amount of steam to paper, thus the temperature improved or humidity, then utilize the adjustable regulatory region of steam flow along the steam of the banner injection different flow of paper, regulate the uniformity of paper banner moisture content, make constant current district not be able to do in time in paper, to discharge latent heat further with the steam of paper effect simultaneously, improve temperature or the humidity of paper, so not only add the utilization rate of steam, decrease steam in steam chest excessive, the by-pass valve control of low discharge can be adopted, in turn ensure that good regulating effect.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
The A-A profile of Fig. 2 Fig. 1.
The B-B profile of Fig. 3 Fig. 2.
The C-C profile of Fig. 4 Fig. 2.
Fig. 5 perforated plate construction schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Fig. 1 to 5.The utility model steam chest, comprise the main steam range 1 be connected with steam chest, main steam range 1 is provided with house steward's control valve 2; For boundary in main steam range 1, with house steward's control valve 2, be divided into upstream and downstream pipe;
The outside of described steam chest is provided with preheating chamber 15; Preheating chamber 15 is connected to the upstream of main steam range 1 by pre-hot leg pipe 12, and the pipeline of pre-hot leg pipe 12 is provided with warm-up control valve 12;
Described steam chest comprises successively along the direction of advance of paper: constant current district 18, regulatory region 19, and the bottom of constant current district 18 and regulatory region 19 is provided with porous plate 16; Porous plate 16 makes steam be sprayed onto equably on page.
The downstream pipe of described main steam range 1 is divided into two branch roads, and one of them branch road is that pipe 3 is distinguished in constant current, and another branch road is that regulatory region is in charge of 7; The caliber that pipe 3 is distinguished in constant current is greater than the caliber that regulatory region is in charge of 7.
Described constant current district 18 is an independent constant current room (centre does not have dividing plate separately), and constant current room is distinguished pipe 3 by the constant current arm 5 being distributed in top with constant current and is communicated with; Steam is laterally entered in independent constant current room equably along paper machine.
Be divided into multiple independently conditioning chamber by dividing plate 17 (along paper laterally evenly) in described regulatory region 19, each conditioning chamber is all in charge of 7 by respective adjustment arm 9 with regulatory region and is communicated with; Thus along the steam flow of horizontal each conditioning chamber of paper, regulate water content and the temperature of paper transverse direction further.
The steam inlet end that pipe 3 and regulatory region are in charge of 7 is distinguished in described constant current, is respectively equipped with constant current and distinguishes pipe control valve 4 and regulatory region is in charge of control valve 8.
The jet direction of described constant current arm 5 and adjustment arm 9 is parallel to the paper page, and namely constant current arm 5 and adjustment arm 9 enter from the side of steam chest.Such one side avoids the adverse effect that steam impringement page produces, to prevent on the other hand in steam may with condensed water be sprayed onto on page.
Constant current arm 5 and regulate arm 9 quantity equal.Constant current arm 5 does not install control valve, not transversely steam regulation flow, total flow is distinguished pipe control valve 4 by constant current and is regulated.
Each adjustment arm 9 is equipped with arm control valve 10.
The other end of described preheating chamber 15 is provided with opposing steam flow pipe 14 and control valve, utilizes and discharges the condensed water in preheating chamber 15, thus guarantee the temperature of steam chest casing for making the vapor recycle in preheating chamber 15.
Constant current arm 5 and adjustment arm 9 are all laterally uniformly distributed along steam chest casing.
The end that pipe 3 is distinguished in described constant current connects condensate pipe 1 and drain valve; The end that regulatory region is in charge of 7 connects condensate pipe 2 11 and drain valve, is in charge of condensed water in 7 for discharging regulatory region.
The caliber regulating arm 9 is 1/3 of constant current arm 5 caliber; The diameter that regulatory region is in charge of 7 is that 1/3 of pipe 3 diameter is distinguished in constant current, and the flow that regulatory region is in charge of 7 is that 1/4 of pipe 3 steam flow is distinguished in constant current.
Above-mentioned steam chest is adopted to regulate the method for paper humiture to realize by following steps:
First, close house steward's control valve 2, pipe control valve 4 is distinguished in constant current and regulatory region is in charge of control valve 8;
Then, open the warm-up control valve 13 on pre-hot leg pipe 12 and the control valve on opposing steam flow pipe 14, make whole steam chest preheating, produce condensed water when preventing steam from entering in steam chest, when the temperature of steam chest casing reaches the temperature of steam, preheating completes; Steam chest is started working;
Open the house steward's control valve 2 in main steam range 1, pipe control valve 4 is distinguished in constant current and regulatory region is in charge of control valve 8, steam is by constant current arm 5 and regulate arm 9 to enter in constant current district 18 and regulatory region 19 respectively, be sprayed onto on paper by the hole on porous plate 16 again, thus regulate temperature or the humidity of each paper of banner.
The steam flow entering regulatory region 18 is about 1/4 of the steam flow in constant current district 18, and therefore a large amount of steam enters constant current room, improves temperature or the humidity of each paper of banner.Then regulated the steam flow of banner each conditioning chamber by regulatory region, effectively improve the uniformity of paper web paper humidity or temperature everywhere, so both improve overall humidity or the temperature of paper, obtain again paper humidity or temperature homogeneity.Not only add the utilization rate of steam, decrease steam in steam chest excessive, the by-pass valve control of low discharge can be adopted, in turn ensure that good regulating effect.
As mentioned above, just the utility model can be realized preferably.
Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (9)
1. a steam chest, comprise the main steam range (1) be connected with steam chest, main steam range (1) is provided with house steward's control valve (2); In main steam range (1) above, with house steward's control valve (2) for boundary, be divided into upstream and downstream pipe, it is characterized in that:
The outside of described steam chest is provided with preheating chamber (15); Preheating chamber (15) is connected to the upstream of main steam range (1) by pre-hot leg pipe (15), and the pipeline of pre-hot leg pipe (15) is provided with warm-up control valve (15);
Described steam chest comprises successively along the direction of advance of paper: constant current district (18), regulatory region (19), and the bottom of constant current district (18) and regulatory region (19) is provided with porous plate (16);
The downstream pipe of described main steam range (1) is divided into two branch roads, and one of them branch road is that pipe (3) is distinguished in constant current, and another branch road is that regulatory region is in charge of (7); The caliber that pipe (3) is distinguished in constant current is greater than the caliber that regulatory region is in charge of (7);
Described constant current district (18) is an independent constant current room, and constant current room is distinguished pipe 3 by the constant current arm 5 being distributed in top with constant current and is communicated with;
Be divided into multiple independently conditioning chamber by dividing plate (17) in described regulatory region (19), each conditioning chamber is all in charge of (7) by respective adjustment arm (9) and is communicated with regulatory region.
2. steam chest according to claim 1, it is characterized in that: the steam inlet end that pipe (3) and regulatory region are in charge of (7) is distinguished in described constant current, be respectively equipped with constant current differentiation pipe control valve (4) and regulatory region is in charge of control valve (8).
3. steam chest according to claim 1, is characterized in that: the spray vapour direction of described constant current arm (5) and adjustment arm (9) is parallel to the paper page.
4. steam chest according to claim 1, is characterized in that: respectively regulate on arm (9) and be equipped with arm control valve (10).
5. steam chest according to claim 1, is characterized in that: the length of regulatory region (19) is greater than constant current district (18).
6. steam chest according to claim 1, it is characterized in that: the other end of described preheating chamber (15) is provided with opposing steam flow pipe (14) and control valve, utilize for making the vapor recycle in preheating chamber (15) and discharge the condensed water in preheating chamber (15).
7. steam chest according to claim 1, is characterized in that: constant current arm (5) and adjustment arm (9) are all laterally uniformly distributed along steam chest casing.
8. steam chest according to claim 1, is characterized in that: the end that pipe 3 is distinguished in described constant current connects condensate pipe one (6) and drain valve; The end that regulatory region is in charge of (7) connects condensate pipe two (11) and drain valve.
9. steam chest according to claim 1, is characterized in that: the caliber regulating arm (9) is 1/3 of constant current arm (5) caliber; The diameter that regulatory region is in charge of (7) is that 1/3 of pipe (3) diameter is distinguished in constant current, and the flow that regulatory region is in charge of (7) is that 1/4 of pipe (3) steam flow is distinguished in constant current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484758.2U CN204059091U (en) | 2014-08-26 | 2014-08-26 | A kind of steam chest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484758.2U CN204059091U (en) | 2014-08-26 | 2014-08-26 | A kind of steam chest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059091U true CN204059091U (en) | 2014-12-31 |
Family
ID=52200637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484758.2U Withdrawn - After Issue CN204059091U (en) | 2014-08-26 | 2014-08-26 | A kind of steam chest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204059091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213456A (en) * | 2014-08-26 | 2014-12-17 | 华南理工大学 | Steam box and method of adjusting temperature and humidity of paper |
| US10975521B2 (en) | 2016-01-28 | 2021-04-13 | Kimberly-Clark Worldwide, Inc. | Fibrous web dewatering apparatus and method |
-
2014
- 2014-08-26 CN CN201420484758.2U patent/CN204059091U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213456A (en) * | 2014-08-26 | 2014-12-17 | 华南理工大学 | Steam box and method of adjusting temperature and humidity of paper |
| CN104213456B (en) * | 2014-08-26 | 2016-05-04 | 华南理工大学 | A kind of method of steam chest and adjusting paper humiture |
| US10975521B2 (en) | 2016-01-28 | 2021-04-13 | Kimberly-Clark Worldwide, Inc. | Fibrous web dewatering apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |