CN203880218U - Regulating valve on steam pipeline in paper humidifying box - Google Patents
Regulating valve on steam pipeline in paper humidifying box Download PDFInfo
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- CN203880218U CN203880218U CN201420238639.9U CN201420238639U CN203880218U CN 203880218 U CN203880218 U CN 203880218U CN 201420238639 U CN201420238639 U CN 201420238639U CN 203880218 U CN203880218 U CN 203880218U
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Abstract
The utility model relates to parts of paper humidifying equipment, in particular to a regulating valve on a steam pipeline in a paper humidifying box. The regulating valve on the steam pipeline in the paper humidifying box comprises a hollow valve body arranged in the steam pipeline, and the two ends of the hollow valve are fixed to the pipeline wall of the steam pipeline. A valve rod is arranged inside the hollow valve body in a penetrating mode, a nozzle communicated with an internal channel of the hollow valve body is formed in the end of the hollow valve body, and the internal channel of the hollow valve body is communicated with the steam pipeline. The integral structure of the regulating valve is embedded in the steam pipeline, when a machine is started, steam in the steam pipeline preheats the regulating valve, the steam cannot be cooled and condensed on the surface of the regulating valve during work, and the problem that condensed water is formed when the steam passes through the valve to the nozzle and is cooled is solved.
Description
Technical field
The utility model relates to the component of paper humidifying equipment, relates in particular to the modulating valve on a kind of paper moistening tank internal steam pipe road.
Background technique
Dry, humidification and press polish three process in paper technology, are comprised successively, wherein humidifying process is to face toward paper by nozzle to spray high-temperature steam, its function is that paper passes through dry rear its internal fiber and shapes, when humidification, high-temperature steam is converted into liquid water and is absorbed by paper surface fiber on paper, then paper surface smoothness gets a promotion after press polish.
But, nozzle in moistening tank in existing humidifying process is all the paper sheet underneath of carrying in roll shaft, its deficiency has 2 points: 1, the restriction of operation before existing paper machine, paper machine mainly concentrates on the front of paper for the processing of paper, also just mean if add this moistening tank just must, by the positive and negative upset of paper, as overturn by deflecting roller, greatly increase the volume of papermaking equipment on existing paper machine.2, in order to ensure the smoothly and not wear equipment of paper sheet delivery, the width of paper must be less than the width of humid cabinet, that is to say that space is left in the both sides of paper width direction (perpendicular to throughput direction).The characteristic of steam is irregular floating, and when the below of nozzle in paper, the gas flow of floating steam is unmanageable, and steam can slip out from the space of paper width direction both sides, causes that humidification is inhomogeneous, humidification weak effect.
But, if nozzle is arranged on to paper top, need to overcome many technical problems.In these technical problems, especially outstanding is some steam is by valve to being easy to meet cold formation condensed water between nozzle, and these condensed waters can, by nozzle ejection to paper, destroy paper product quality.And existing regulating valve structure complexity, when installation, valve body major part is all in pipeline outside, the valve body in pipeline outside is exposed in air, has strengthened the heat radiation of insides of pipes valve body, easily produces condensed water in the time that steam passes through valve body.
Therefore, be badly in need of a kind of simple in structure, modulating valve that steam can not produce condensed water on valve body.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of modulating valve simple in structure, this modulating valve overcome steam by valve to the technical problem of meeting cold formation condensed water between nozzle.
In order to realize above-mentioned object, the utility model has adopted following technological scheme:
A modulating valve on paper moistening tank internal steam pipe road, comprises the hollow valve body being arranged in steam line, and the two ends of this hollow valve body are fixed on the tube wall of steam line; Described hollow valve body inside is equipped with valve rod, and hollow valve body end is provided with the nozzle communicating with hollow valve body inner passage, and the inner passage of hollow valve body communicates with steam line.The overall structure of this modulating valve is embedded in steam line, and when start, the steam in steam line carries out preheating to it, when work steam can its surface meet cold, condense, solved steam by valve to a difficult problem of meeting cold formation condensed water between nozzle.
As preferably, described hollow valve body is provided with the valve port in steam line, hollow valve body is divided into successively ventilating part, joint and valve rod assembly department by valve port, and the inner passage of ventilating part is breather line, and the inner passage of valve rod assembly department is that valve rod is installed passage; Nozzle communicates with the breather line of hollow valve body, and valve rod is located in the valve rod of hollow valve body and installs in passage, and the inner of valve rod offsets through the import of valve port and breather line.This nozzle the valve rod of modulating valve be located in inner, steam inlet, steam (vapor) outlet and the regulating valve rod of breather line are all in a straight line, when installation, only need on the tube wall of steam line, beat corresponding hole, in the pipe tap of steam line, and make valve port inner in steam line the two ends welded seal of hollow valve body.
As preferably, described valve port axial length is 1/5 ~ 1/3 of hollow valve body axial length, in the exposed valve port in the inner of valve rod; Joint is made up of the attachment post being symmetricly set on valve port, and the radial width of attachment post is less than the diameter of valve rod the inner.In the time that valve rod is opened, steam enters breather line by valve port, and valve port magnitude relationship the area of steam, and valve port is larger, and area of contact is less, and the probability that produces condensed water is less; Valve rod is inner exposed in steam line, is convenient to accelerate the preheating to valve rod of steam in steam line.
As preferably, breather line and valve rod are installed passage on same straight line.
As preferably, valve rod outer end is provided with handle, and threaded stem is connected to the valve rod of hollow valve body and installs in passage, between valve rod and hollow valve body, reinforces by nut.
The utility model adopts technique scheme, the overall structure of this modulating valve is embedded in steam line, in the process of paper machine preheating, pipeline in hollow valve body, hollow valve body in steam line and the valve stem being exposed in valve port are carried out preheating by steam, when use, steam can not met cold on its surface, condense, solved steam by valve to a difficult problem of meeting cold formation condensed water between nozzle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A portion sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
Modulating valve on a kind of paper moistening tank internal steam pipe road as shown in Figure 1 and Figure 2, comprise the hollow valve body 1 being arranged in steam line 5, be connected to the valve rod 3 that nozzle 2 on hollow valve body 1 end and screw thread are located in hollow valve body 1 inside, valve rod 3 outer ends are provided with handle, between valve rod 3 and hollow valve body 1, reinforce by nut.The two ends of hollow valve body 1 are fixed on the tube wall of steam line 5, hollow valve body 1 is provided with valve port 4, valve port 4 is in steam line 5, hollow valve body 1 is divided into successively ventilating part 11, joint 12 and valve rod assembly department 13 by valve port 4, the inner passage of ventilating part 11 is breather line 111, the inner passage of valve rod assembly department 13 is that valve rod is installed passage 131, and breather line 111 and valve rod are installed passage 131 on same straight line; Nozzle 2 communicates with the breather line 111 of hollow valve body 1, and valve rod 3 is located in the valve rod of hollow valve body 1 and installs in passage 131, and the inner of valve rod 3 offsets through valve port 4 and the import of breather line 111.Valve port 4 axial lengths are 1/5 ~ 1/3 of hollow valve body 1 axial length, in the exposed valve port 4 in the inner of valve rod 3; Joint 12 is made up of the attachment post being symmetricly set on valve port 4, and the radial width of attachment post is less than the diameter of valve rod 3 the inners.
When installation, due to this nozzle valve rod be located in hollow valve body inside, steam inlet, steam (vapor) outlet and the regulating valve rod of breather line are all in a straight line, only need on the tube wall of steam line, beat corresponding hole, the two ends of hollow valve body are welded in the pipe tap of steam line, and make valve port inner in steam line, very convenient.After installation, the valve rod of this modulating valve nozzle is inner exposed in steam line.In the process of paper machine preheating, moistening tank also needs to carry out preheating, passes into high pressure steam in steam line, and the valve rod of modulating valve is turned on, and steam carries out preheating for valve rod the inner.After completing, preheating do not need as required the modulating valve using on selectivity steam off pipeline.In addition, in the time that valve rod is opened, steam enters breather line by valve port, and the length relation of valve port the area of steam, and valve port is larger, and area of contact is less, and the probability that produces condensed water is less; In addition, the valve port of large opening makes in the exposed steam line in the inner of valve rod, is convenient to accelerate the preheating to valve rod of steam in steam line.By above structure, this modulating valve overcome steam by valve to the technical problem of meeting cold formation condensed water between nozzle.
Claims (5)
1. the modulating valve on paper moistening tank internal steam pipe road, is characterized in that comprising the hollow valve body being arranged in steam line, and the two ends of this hollow valve body are fixed on the tube wall of steam line; Described hollow valve body inside is equipped with valve rod, and hollow valve body end is provided with the nozzle communicating with hollow valve body inner passage, and the inner passage of hollow valve body communicates with steam line.
2. the modulating valve on a kind of paper moistening tank internal steam pipe according to claim 1 road, it is characterized in that: described hollow valve body is provided with the valve port in steam line, hollow valve body is divided into successively ventilating part, joint and valve rod assembly department by valve port, the inner passage of ventilating part is breather line, and the inner passage of valve rod assembly department is that valve rod is installed passage; Nozzle communicates with the breather line of hollow valve body, and valve rod is located in the valve rod of hollow valve body and installs in passage, and the inner of valve rod offsets through the import of valve port and breather line.
3. the modulating valve on a kind of paper moistening tank internal steam pipe according to claim 2 road, is characterized in that: described valve port axial length is 1/5 ~ 1/3 of hollow valve body axial length, in the exposed valve port in the inner of valve rod; Joint is made up of the attachment post being symmetricly set on valve port, and the radial width of attachment post is less than the diameter of valve rod the inner.
4. the modulating valve on a kind of paper moistening tank internal steam pipe according to claim 2 road, is characterized in that: breather line and valve rod are installed passage on same straight line.
5. the modulating valve on a kind of paper moistening tank internal steam pipe according to claim 2 road, is characterized in that: valve rod outer end is provided with handle, and threaded stem is connected to the valve rod of hollow valve body and installs in passage, between valve rod and hollow valve body, reinforces by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238639.9U CN203880218U (en) | 2014-05-09 | 2014-05-09 | Regulating valve on steam pipeline in paper humidifying box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238639.9U CN203880218U (en) | 2014-05-09 | 2014-05-09 | Regulating valve on steam pipeline in paper humidifying box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880218U true CN203880218U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420238639.9U Withdrawn - After Issue CN203880218U (en) | 2014-05-09 | 2014-05-09 | Regulating valve on steam pipeline in paper humidifying box |
Country Status (1)
| Country | Link |
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| CN (1) | CN203880218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939668A (en) * | 2014-05-09 | 2014-07-23 | 浙江汉普新材料技术有限公司 | Regulating valve on steam pipeline in paper humidifying box |
-
2014
- 2014-05-09 CN CN201420238639.9U patent/CN203880218U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939668A (en) * | 2014-05-09 | 2014-07-23 | 浙江汉普新材料技术有限公司 | Regulating valve on steam pipeline in paper humidifying box |
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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: 20141015 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |