Accumulated water self-eliminating structure of drying cylinder for paper machine

Abstract

The utility model relates to the technical field of accumulated water self-eliminating structures of drying cylinders, and discloses an accumulated water self-eliminating structure of a drying cylinder for a paper machine, which comprises a drying cylinder, the drying cylinder comprises a cylinder wall and cylinder covers arranged at two ends of the cylinder wall, and a through steam channel is arranged in the middle of each cylinder cover. The steam channel at one end is used for introducing heating steam, the other end is used for discharging steam to achieve circulation, a siphon main pipe is arranged in the steam channel at one end in a penetrating mode, the inner end of the siphon main pipe points to the inner bottom wall of the drying cylinder, and a certain gap is reserved between the inner end of the siphon main pipe and the bottom wall. A safer and more stable working effect can be achieved by adopting a structure made of rigid materials, in addition, a certain gap is kept between the water suction head of the siphon and the inner wall of the cylinder wall through matching of non-contact thrust of the powerful magnet and spring force, a good water suction function is guaranteed, and interference with the inner wall of the cylinder wall is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water accumulation self - elimination structures for drying cylinders, in particular to a water accumulation self - elimination structure for a drying cylinder used in a paper machine. Background Art

[0002] Patent publication number CN204356584U discloses a condensate discharge device for a dryer siphon. The device includes a dryer, a drive - side cylinder head provided on the dryer, and a siphon pipe. The siphon pipe is divided into three parts: a siphon horizontal pipe, a siphon elbow, and a siphon vertical pipe. The siphon elbow is a flexible pipe. One end of the siphon horizontal pipe is fixed on the dryer, the siphon horizontal pipe is connected to the siphon elbow through a connecting ring, and the siphon elbow is connected to the siphon vertical pipe through a connecting ring. When the dryer is running, due to the flexibility of the flexible pipe, it not only avoids the siphon pipe being worn or broken due to friction with the cylinder body, but also ensures the normal operation of the siphon pipe, enabling the condensate to be discharged smoothly. The whole device has a simple structure, is convenient to disassemble and assemble, and is easy to operate.

[0003] However, its flexible pipe cannot ensure the gap between the water suction port and the inner wall, so it cannot ensure thorough and good drainage, and the siphon pipe will interfere with the inner wall, resulting in wear and abnormal noise. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a water accumulation self - elimination structure for a drying cylinder used in a paper machine is provided, which solves the above problems.

[0005] The utility model solves its technical problems by adopting the following technical solutions:

[0006] A water accumulation self - elimination structure for a drying cylinder used in a paper machine includes a dryer. The dryer includes a cylinder wall and cylinder heads provided at both ends of the cylinder wall. A through steam channel is provided in the middle of the cylinder head. One end of the steam channel is used to introduce heating steam, and the other end is used to discharge steam to achieve circulation. And a siphon main pipe is inserted in one end of the steam channel. The inner end of the siphon main pipe points to the inner bottom wall of the dryer and keeps a certain gap from the bottom wall. The siphon main pipe is used to suck out the accumulated water or water ring in the dryer through siphon under the action of a pump. And a telescopic structure is provided at the inner end of the siphon main pipe to adapt to the distance from the inner wall of the cylinder wall, so that during the process of thermal expansion and contraction or eccentric rotation of the cylinder wall, the distance between the water suction port and the inner wall of the cylinder wall can be adjusted to ensure normal water suction and no interference with the inner wall of the cylinder wall.

[0007] Preferably, a ring groove is opened on the inner wall of the cylinder wall, and a magnetic ring is embedded in the ring groove. A telescopic pipe is telescopically inserted at the inner end of the siphon main pipe, and the connection part between the telescopic pipe and the siphon main pipe is sealed by a sealing ring.

[0008] Preferably, ceramic spacer ingots are arranged at intervals in the annular groove on the inner wall of the cylinder wall, and the ceramic spacer ingots are used to support and separate the magnetic ring from the cylinder wall.

[0009] Preferably, a spacer sleeve is fixedly arranged on the telescopic pipe, and a spring is arranged between the spacer sleeve and the siphon main pipe. The spring is sleeved on the telescopic pipe, and the telescopic pipe is pushed downward under the action of the spring.

[0010] Preferably, a rubber sealing gasket is embedded in the annular groove on the inner wall of the cylinder wall to prevent condensed water from accumulating in the annular groove on the inner wall of the cylinder wall.

[0011] Preferably, a rubidium magnet is fixedly arranged at the lower end of the telescopic pipe. The rubidium magnet and the magnetic ring keep a certain distance between the water suction port and the inner wall of the cylinder wall through magnetic repulsion. In addition, a rubber suction head is fixedly arranged at the lower port of the telescopic pipe to avoid rigid contact. The telescopic pipe is made of non-magnetic and non-magnetizable stainless steel material.

[0012] The advantages and positive effects of the present utility model are as follows: By adopting the structure of rigid materials, a safer and more stable working effect can be achieved. In addition, through the cooperation of the non-contact thrust of the strong magnet and the spring force, the water suction head of the siphon keeps a certain gap from the inner wall of the cylinder wall, ensuring a good water suction function and preventing interference with the inner wall of the cylinder wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 an enlarged structural diagram of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. The following is a further detailed description of the embodiments of the present utility model with reference to the drawings:

[0017] As Figure 1-2As shown in the figure, a self-eliminating structure for accumulated water in a drying cylinder of a paper machine according to the present utility model includes a drying cylinder, which includes a cylinder wall 10 and cylinder heads 11 provided at both ends of the cylinder wall 10. A through steam channel 13 is provided in the middle of the cylinder head 11. One end of the steam channel 13 is used to introduce heating steam, and the other end is used to discharge steam to achieve circulation. And a siphon main pipe 12 is inserted in the steam channel 13 at one end. The inner end of the siphon main pipe 12 points to the inner bottom wall of the drying cylinder and maintains a certain gap with the bottom wall. The siphon main pipe 12 is used to suck out the accumulated water or water ring in the drying cylinder through siphon under the action of a pump. And a telescopic structure is provided at the inner end of the siphon main pipe 12 to adaptively adjust the distance from the inner wall of the cylinder wall 10, so that during the thermal expansion and contraction or eccentric rotation of the cylinder wall 10, the distance between the water suction port and the inner wall of the cylinder wall 10 can be adjusted to ensure normal water absorption and no interference with the inner wall of the cylinder wall 10.

[0018] Preferably, a ring groove is provided on the inner wall of the cylinder wall 10, and a magnetic ring 18 is embedded in the ring groove. A telescopic pipe 22 is telescopically inserted at the inner end of the siphon main pipe 12, and the connection part between the telescopic pipe 22 and the siphon main pipe 12 is sealed by a sealing ring.

[0019] Preferably, ceramic spacer ingots 17 are provided at intervals in the ring groove on the inner wall of the cylinder wall 10. The ceramic spacer ingots 17 are used to support and separate the magnetic ring 18 from the cylinder wall 10.

[0020] Preferably, a spacer sleeve 21 is fixedly provided on the telescopic pipe 22, and a spring 23 is provided between the spacer sleeve 21 and the siphon main pipe 12. The spring 23 is sleeved on the telescopic pipe 22, and the telescopic pipe 22 is pushed downward under the action of the spring 23.

[0021] Preferably, a rubber sealing gasket 16 is embedded in the ring groove on the inner wall of the cylinder wall 10 to prevent condensed water from accumulating in the ring groove on the inner wall of the cylinder wall 10.

[0022] Preferably, a rubidium magnet 20 is fixedly provided at the lower end of the telescopic pipe 22. The rubidium magnet 20 and the magnetic ring 18 keep a certain distance between the water suction port and the inner wall of the cylinder wall 10 through magnetic repulsion. In addition, a rubber suction head 19 is fixedly provided at the lower port of the telescopic pipe 22 to avoid rigid contact. The telescopic pipe 22 is made of non-magnetic and non-magnetizable stainless steel material.

[0023] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present utility model also belong to the scope of protection of the present utility model.

Claims

1. A self-eliminating structure for accumulated water in a drying cylinder of a paper machine, comprising a drying cylinder, characterized in that: The dryer cylinder includes a cylinder wall (10) and cylinder covers (11) provided at both ends of the cylinder wall (10). A through steam channel (13) is provided in the middle of the cylinder cover (11). One end of the steam channel (13) is used to introduce heating steam, and the other end is used to discharge steam to achieve circulation. A siphon main pipe (12) is inserted into the steam channel (13) at one end. The inner end of the siphon main pipe (12) points to the inner bottom wall of the dryer cylinder and has a certain gap from the bottom wall. The siphon main pipe (12) is used to suck out the accumulated water or water ring in the dryer cylinder outward by siphon under the action of a pump. A telescopic structure is provided at the inner end of the siphon main pipe (12) to adaptively adjust the distance from the inner wall of the cylinder wall (10), so that during the process of thermal expansion and contraction or eccentric rotation of the cylinder wall (10), the distance between the water suction port and the inner wall of the cylinder wall (10) can be adjusted, ensuring normal water suction and no interference with the inner wall of the cylinder wall (10).

2. The self-eliminating structure for accumulated water of a drying cylinder used in a paper machine according to claim 1, wherein: A ring groove is formed in the inner wall of the cylinder wall (10), and a magnetic ring (18) is embedded in the ring groove. A telescopic pipe (22) is telescopically inserted at the inner end of the siphon main pipe (12), and the connecting part between the telescopic pipe (22) and the siphon main pipe (12) is sealed by a sealing ring.

3. The self-eliminating structure for accumulated water in a drying cylinder of a paper machine according to claim 2, characterized in that: Ceramic spacer blocks (17) are arranged at intervals in the ring groove on the inner wall of the cylinder wall (10). The ceramic spacer blocks (17) are used to support and separate the magnetic ring (18) from the cylinder wall (10).

4. A self-eliminating structure for accumulated water in a drying cylinder of a paper machine according to claim 3, characterized in that: A spacer sleeve (21) is fixedly arranged on the telescopic pipe (22). A spring (23) is arranged between the spacer sleeve (21) and the siphon main pipe (12). The spring (23) is sleeved on the telescopic pipe (22). Under the action of the spring (23), the telescopic pipe (22) is pushed downward.

5. A self-eliminating structure for accumulated water in a drying cylinder of a paper machine according to claim 4, characterized in that: A rubber sealing gasket (16) is embedded in the inner wall ring groove of the cylinder wall (10) to prevent condensate from accumulating in the inner wall ring groove of the cylinder wall (10).

6. The self-eliminating structure for accumulated water in a drying cylinder of a paper machine according to claim 5, characterized in that: A rubidium magnet (20) is fixedly arranged at the lower end of the telescopic pipe (22). The rubidium magnet (20) and the magnetic ring (18) keep a certain distance between the water suction port and the inner wall of the cylinder wall (10) through magnetic repulsion. In addition, a rubber suction head (19) is fixedly arranged at the lower port of the telescopic pipe (22) to avoid rigid contact. The telescopic pipe (22) is made of non-magnetic and non-magnetizable stainless steel material.

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