CN218263253U

CN218263253U - Novel drainage device of dryer

Info

Publication number: CN218263253U
Application number: CN202221389744.3U
Authority: CN
Inventors: 杨欢诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2023-01-10
Anticipated expiration: 2032-06-06

Abstract

The utility model provides a novel drainage device of dryer belongs to papermaking equipment technical field, including cylinder body, collector pipe, upwash nest of tubes, steam admission pipe and comdenstion water output tube, the steam admission pipe and the comdenstion water output tube sets up respectively the cylinder body both sides, the steam admission pipe is used for introducing steam extremely inside the cylinder body, the comdenstion water output tube is used for the inside comdenstion water of cylinder body discharges extremely the cylinder body is outside, the collector pipe sets up inside the cylinder body for collect steam condensate water, the collector pipe with through at least two sets of between the comdenstion water output tube upwash nest of tubes intercommunication. The embodiment of the utility model is an initiative in the industry at present, and has the advantages that the wide-width paper machine can use a Yankee cylinder, and the width of the paper web breaks through the bottleneck of 5.6 m; the evaporation output of the Gao Yangke cylinder is improved, and the steam is saved by more than 10%; the speed of the paper machine is improved, and the yield is increased.

Description

Novel drainage device of dryer

Technical Field

The utility model belongs to the technical field of papermaking equipment, specifically a novel drainage device of dryer.

Background

The driven Yankee cylinder drainage device adopts a single group of drainage pipes, and researches show that the single group of drainage pipes has the following defects in drainage:

1. the pipe connecting flange is arranged on the flange surface of the water outlet, and the number of the riser pipes is limited due to the limited area of the flange surface;

2. if the pipe diameter of the riser pipe is increased, the flange surface of the end surface of the drain pipe is inevitably increased, the large head and the small head are connected with the drain pipe, and water in the large head and the small head is not easy to drain;

3. only one set of riser tubes limits the condensate removal capability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to above-mentioned prior art, the to-be-solved technical problem of the utility model is to provide a novel drainage device of dryer.

In order to solve the technical problem, the utility model provides a following technical scheme:

a novel drainage device of a drying cylinder, which comprises a cylinder body, a water collecting pipe, an upflow pipe group, a steam inlet pipe and a condensed water output pipe,

the steam inlet pipe and the condensed water output pipe are respectively arranged at two sides of the cylinder body,

the steam inlet pipe is used for introducing steam into the cylinder body,

the condensed water output pipe is used for discharging the condensed water in the cylinder body to the outside of the cylinder body,

the water collecting pipe is arranged in the cylinder body and is used for collecting the steam condensate,

the water collecting pipe is communicated with the condensed water output pipe through at least two sets of upflow pipe sets.

As a further improvement of the utility model: each group of riser pipe group comprises three riser pipes, wherein the three riser pipes are in one group and staggered with the other group.

As a further improvement of the utility model: the diameter of the water collecting pipe is one to two stages larger than that of the riser pipe.

As a further improvement of the utility model: the side wall of the water collecting pipe is provided with a siphon tube bundle.

As the utility model discloses further improvement scheme again: the water collecting pipe is of a square pipe structure or a polyhedral tubular structure.

Compared with the prior art, the beneficial effects of the utility model are that:

the embodiment of the utility model is an initiative in the industry at present, and has the advantages that the wide-width paper machine can use a Yankee cylinder, and the width of the paper web breaks through the bottleneck of 5.6 m; the evaporation output of the Gao Yangke cylinder is improved, and the steam is saved by more than 10%; the speed of the paper machine is improved, and the yield is increased.

Drawings

FIG. 1 is a front view of a novel drainage arrangement for a dryer;

FIG. 2 is a perspective view of a novel drainage arrangement for a drying cylinder;

fig. 3 is a left side view of a novel drainage arrangement for a drying cylinder.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, the present embodiment provides a novel drainage device for a drying cylinder, including a cylinder body, a water collecting pipe 1, a flow rising pipe group 2, a steam inlet pipe 4 and a condensed water output pipe 5, where the steam inlet pipe 4 and the condensed water output pipe 5 are respectively disposed at two sides of the cylinder body, the steam inlet pipe 4 is used for introducing steam into the cylinder body, the condensed water output pipe 5 is used for discharging condensed water in the cylinder body to the outside of the cylinder body, the water collecting pipe 1 is disposed in the cylinder body and is used for collecting steam condensed water, and the water collecting pipe 1 is communicated with the condensed water output pipe 5 through at least two sets of the flow rising pipe group 2.

The condensed water and steam can enter the water collecting pipe 1 after being mixed, then enter the condensed water output pipe 5 from the riser pipe group 2, and are discharged to the outside of the cylinder body through the condensed water output pipe 5, the traditional riser pipe is only designed to be one group (3-8), in the present instance, in order to increase the water discharge, the riser pipes are increased to more than two groups, the purpose of increasing the riser pipes is to reduce the speed of the riser pipes when the condensed water is discharged, reduce the resistance, and can be reduced to 20-30 m/s from the existing 60-80m/s, thereby leading the condensed water to be smoothly discharged, reducing the thickness of the condensed water on the inner surface of the Yangke cylinder, and improving the heat transfer efficiency.

Referring to fig. 2, in one embodiment, each of the riser groups 2 includes three riser tubes, and one of the three riser tubes is offset from the other riser tube to avoid the drainage efficiency from decreasing due to the opposite arrangement of the drainage tubes.

In one embodiment, the water collection pipe 1 is one to two steps larger than the riser pipe diameter, for example: the pipe diameter of the riser pipe is DN50, and the pipe diameter of the water collecting pipe 1 is DN65 or DN80.

According to measurement and calculation, the design of the riser tube in the embodiment can improve the heat transfer efficiency by 10-20%, the steam consumption per ton of paper is reduced to 1.62-1.7t from the traditional 1.8-2.1t, the current steam consumption is 1.8-2.1t, the riser tube plays an effective role in reducing carbon emission, and the cost is effectively reduced for enterprises.

Referring to fig. 1 and 3, in one embodiment, a siphon bundle 3 is disposed on a sidewall of the water collecting pipe 1, so that a mixture of condensed water and steam enters the water collecting pipe 1 through the siphon bundle 3 and is discharged to the outside of the cylinder through the rising pipe group 2 and the condensed water output pipe 5.

In one embodiment, the water collecting pipe 1 may have a square pipe structure or a polyhedral tubular structure, which is not limited herein.

The embodiment of the utility model is an initiative in the industry at present, and has the advantages that the wide-width paper machine can use a Yankee cylinder, and the width of the paper web breaks through the bottleneck of 5.6 m; the evaporation output of the Gao Yangke cylinder is improved, and the steam is saved by more than 10 percent; the speed of the paper machine is improved, and the yield is increased.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A novel drainage device of a drying cylinder, which is characterized by comprising a cylinder body, a water collecting pipe, a rising pipe group, a steam inlet pipe and a condensed water output pipe,

the steam inlet pipe is used for introducing steam into the cylinder body,

the water collecting pipe is arranged in the cylinder body and is used for collecting steam condensate,

the water collecting pipe is communicated with the condensed water output pipe through at least two groups of upflow pipe groups.

2. The novel drainage device of the drying cylinder as claimed in claim 1, characterized in that each group of said riser groups comprises three riser tubes, wherein three of said riser tubes are staggered with respect to the other group.

3. The novel drainage device of the drying cylinder as claimed in claim 2, characterized in that the diameter of the water collecting pipe is one to two stages larger than that of the riser pipe.

4. The novel drainage device for the drying cylinder as claimed in claim 1, characterized in that the side wall of the water collecting pipe is provided with a siphon bundle.

5. The novel drainage device of the drying cylinder as claimed in claim 1, characterized in that said water collecting pipe is of a square pipe structure or a polyhedral tubular structure.