Water supply device of super calender

Abstract

The utility model discloses a super calender water supply device which comprises a water collecting tank, a rotating shaft and a rubber roller, the water collecting tank is connected with a paper machine condensate pipe, a refrigerator is arranged in the water collecting tank, the water collecting tank is connected with a second water pump, a water inlet channel and a water outlet channel are arranged in the rotating shaft, and the water inlet channel is connected with the second water pump through a pipeline. A cooling pipe is arranged in the rubber roller, one end of the cooling pipe is connected with the water inlet channel, and the other end of the cooling pipe is connected with the water outlet channel. The paper machine condensate water pipe is directly connected into the water supply system of the calender, water is saved and utilized, the purity of water in the water supply system is guaranteed, the problems of system pressure and flow fluctuation and the like caused by scaling of the inner wall of a pipeline are solved, it is guaranteed that the paper machine condensate water can meet the use requirement of a water supply device through cyclic utilization, and lasting operation can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking machinery, and particularly relates to a water supply device for a super calender. Background Art

[0002] The calender is a crucial piece of equipment in the papermaking industry, primarily used to improve the smoothness, glossiness, and thickness uniformity of paper. During the paper production process, the calender generates significant heat, which can lead to deformation of the rubber rollers and other problems. To ensure paper quality and smooth production, the calender requires cooling. Currently, tap water is primarily used for cooling the calender. Over time, the inner walls of the water supply pipes can scale, causing system pressure and flow fluctuations, tripping and slowing, and impacting the entire line's operation. Softening the water used in the water supply system alone would also increase costs. Summary of the Invention

[0003] In response to the above-mentioned prior art, the present invention provides a super calender water supply device, the problem to be solved is to ensure the normal operation of the calender cooling system without increasing the cost and reduce the flow fluctuation caused by scaling on the inner wall of the water supply pipe.

[0004] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A super calender water supply device includes a water collecting tank, a rotating shaft and a rubber roller. The water collecting tank is connected to a paper machine condensate pipe. A cooler is provided in the water collecting tank. The water collecting tank is connected to water pump 2. A water inlet channel and a water outlet channel are provided in the rotating shaft. The water inlet channel is connected to water pump 2 through a pipe. The water outlet channel is connected to the water collecting tank through a pipe. A cooling pipe is provided in the rubber roller. One end of the cooling pipe is connected to the water inlet channel, and the other end of the cooling pipe is connected to the water outlet channel.

[0006] Furthermore, the condensate pipe of the paper machine is connected to a buffer tank, the buffer tank is connected to a water pump 1, the water pump 1 is connected to a water collecting tank through a pipeline, and a water level detection device is provided in the water collecting tank.

[0007] Furthermore, a filtering device is provided on the pipe connecting the water outlet channel and the water collecting tank.

[0008] Furthermore, the filter device can be detachably installed.

[0009] Furthermore, a flow regulating valve is installed in the water inlet channel.

[0010] Furthermore, the cooling pipe is spirally shaped and is distributed spirally along the central axis of the rubber roller.

[0011] Furthermore, the cooling pipes are multiple straight pipes, the cooling pipes are arranged along the central axis direction of the rubber roller, and the cooling pipes are evenly distributed inside the rubber roller.

[0012] The beneficial effects of the present invention are as follows: the water supply source of the super calender is changed from tap water to paper machine condensate, and the paper machine condensate is directly connected to the water supply pipe of the calender through a pipe, thereby saving water resources, and the paper machine condensate is purer, which reduces problems such as tripping, stopping and speed reduction caused by scaling on the inner wall of the water supply pipe.

[0013] Furthermore, a buffer tank and a water pump are installed on the paper machine condensate pipe to ensure the stability of water pressure and flow when the paper machine condensate is supplied to the cooling system of the calender, so that the entire water supply system can cool the calender stably and continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a water supply device for a super calender according to the present invention;

[0015] Figure 2 This is a schematic diagram of a cooling pipe according to a first embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the cooling pipe in Example 2 of the present utility model.

[0017] Explanation of the accompanying figures: 1. Paper machine condensate pipe; 2. Buffer tank; 3. Water pump 1; 4. Water collecting tank; 5. Refrigerator; 6. Water pump 2; 7. Filter device; 8. Rotating shaft; 9. Rubber roller; 10. Cooling pipe; 11. Water outlet channel; 12. Water inlet channel; 13. Water level detection device; 14. Flow regulating valve. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0019] Example 1

[0020] Combined with reference to Figures 1 to 2The utility model provides a super calender water supply device, including a water collecting tank 4, a rotating shaft 8 and a rubber roller 9. The water collecting tank 4 is connected to a paper machine condensate pipe 1, a refrigerator 5 is provided in the water collecting tank 4, the water collecting tank 4 is connected to a water pump 6, a water inlet channel 12 and a water outlet channel 11 are provided in the rotating shaft 8, the water inlet channel 12 is connected to the water pump 6 through a pipeline, the water outlet channel 11 is connected to the water collecting tank 4 through a pipeline, a cooling pipe 10 is provided in the rubber roller 9, one end of the cooling pipe 10 is connected to the water inlet channel 12, and the other end of the cooling pipe 10 is connected to the water outlet channel 11. The condensed water in the paper machine condensate pipe 1 is directly connected to the water collecting tank 4, cooled by the refrigerator 5, and the cooled water is pressurized by the water pump 2 6 and passed into the water inlet channel 12 in the rotating shaft 8, flows through the cooling pipe 10 in the rubber roller 9, and cools the rubber roller 9. The water heated by the rubber roller 9 flows through the water outlet channel 11 and then flows back to the water collecting tank 4. The water of the entire water supply device comes from the condensed water of the paper machine, which is purer, so that the pipeline of the entire water supply device will not be scaled, and the tripping caused by flow fluctuation is avoided. The recycling design not only saves water, but also ensures that the condensed water of the paper machine can meet the use of the entire water supply device.

[0021] Preferably, the paper machine condensate pipe 1 is connected to a buffer tank 2, which is connected to a water pump 3. This water pump 3 is connected to a water collection tank 4 via a pipe. The water collection tank 4 is provided with a water level detection device 13. The water level detection device 13 provided in the water collection tank 4 allows for the replenishment of paper machine condensate into the water supply system at any time as needed. The provision of the buffer tank 2 and water pump 3 on the paper machine condensate pipe 1 solves the problem of unstable condensate pressure and flow in the paper machine, ensuring that sufficient condensate can be quickly replenished when the water supply system needs to be replenished, thereby improving the stability of the calendering machine, increasing the operating rate, and ensuring the stability of the entire production line.

[0022] Preferably, a filter device 7 is provided on the pipe connecting the water outlet channel 11 and the water collecting tank 4. The filter device 7 is provided in the entire water supply device to ensure the purity of the water in the water supply device as much as possible and reduce the possibility of damage to the pipe and scaling.

[0023] Preferably, the filter device 7 is detachably mounted. The detachable design makes the filter device 7 easier to maintain and replace, reducing the impact on the water supply device during maintenance and replacement.

[0024] Preferably, a flow regulating valve 14 is installed in the water inlet channel 12. According to the cooling requirement of the calender, the flow rate of the cold water in the cooling pipe 10 is adjusted by the flow regulating valve 14 to save energy consumption.

[0025] Preferably, the cooling pipe 10 is spirally distributed along the central axis of the rubber roller 9. In a limited space, the contact area with the rubber roller is increased, thereby improving the cooling efficiency.

[0026] Example 2

[0027] See attached Figure 3 This embodiment differs from the first embodiment in that the cooling tubes 10 are multiple straight tubes, arranged along the central axis of the rubber roller 9, and evenly distributed within the rubber roller 9. This arrangement simplifies manufacturing and installation, and even if one cooling tube 10 fails, the remaining cooling tubes 10 can still function normally. Furthermore, straight cooling tubes 10 are easier to replace.

[0028] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A super calender water supply device, comprising a water collecting tank (4), a rotating shaft (8) and a rubber roller (9), characterized in that: The water collecting tank (4) is connected to a paper machine condensate pipe (1), a cooler (5) is provided in the water collecting tank (4), the water collecting tank (4) is connected to a second water pump (6), a water inlet channel (12) and a water outlet channel (11) are provided in the rotating shaft (8), the water inlet channel (12) is connected to the second water pump (6) through a pipeline, the water outlet channel (11) is connected to the water collecting tank (4) through a pipeline, a cooling pipe (10) is provided in the rubber roller (9), one end of the cooling pipe (10) is connected to the water inlet channel (12), and the other end of the cooling pipe (10) is connected to the water outlet channel (11).

2. A super calender water supply device according to claim 1, characterized in that: The paper machine condensate pipe (1) is connected to a buffer tank (2), the buffer tank (2) is connected to a water pump (3), the water pump (3) is connected to a water collecting tank (4) through a pipeline, and a water level detection device (13) is provided in the water collecting tank (4).

3. The super calender water supply device according to claim 1, characterized in that: A filtering device (7) is provided on the pipeline connecting the water outlet channel (11) and the water collecting tank (4).

4. The super calender water supply device according to claim 3, characterized in that: The filtering device (7) can be detachably installed.

5. The water supply device for a super calender according to claim 1, characterized in that: A flow regulating valve (14) is installed in the water inlet channel (12).

6. The super calender water supply device according to claim 1, characterized in that: The cooling pipe (10) is spirally shaped and is distributed spirally along the central axis of the rubber roller (9).

7. The super calender water supply device according to claim 1, characterized in that: The cooling pipes (10) are multiple straight pipes, and the cooling pipes (10) are arranged along the central axis direction of the rubber roller (9). The cooling pipes (10) are evenly distributed inside the rubber roller (9).

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