Automatic condensate water drainage system for fiber heating roller

Abstract

The utility model provides an automatic condensate water drainage system for a fiber heating roller. The automatic condensate water drainage system comprises a box body; the heating roller is arranged at the upper end of the side wall of the box body; the pipeline and the control valve are arranged in the box body and are connected with the heating roller; the heating roller comprises a heating cavity; the pipeline comprises a steam input part connected with the steam input port to the end part of the rotating shaft, a steam output part connected with the steam input port to the end part of the rotating shaft, and a siphon pipe connected with the heating cavity and the pipeline through the rotating shaft; the condensed water recovery part is connected with the end part of the rotating shaft to the condensed water outlet; and the steam recovery part is connected with the condensate water recovery part to the steam outlet. According to the automatic condensate water drainage system for the fiber heating roller, the end of the heating roller is connected with the steam input part, the condensate water recovery part and the steam recovery part through the corresponding channels, and the corresponding control valves are arranged in the pipelines, so that when condensate water is gathered at the bottom of the heating roller, the condensate water can be recycled; the condensate water can be automatically discharged, and the condensate water and the steam can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of steam heating roll drainage, in particular to an automatic drainage system for condensate water of a fiber heating roll. Background Art

[0002] A steam heating roll is a device that uses steam as a heat source to heat a roll, and is widely used in heating, compounding, embossing and other processes in industries such as textile, printing and dyeing, non-woven fabric, and drying plastics. Its working principle is as follows: The steam heating roll is externally connected to a steam pipeline through a rotary joint, and steam is introduced into the roll for heating. The steam flows inside the roll and transfers heat to the roll surface through heat conduction, so that the temperature of the roll surface rises to achieve the purpose of heating the material.

[0003] At present, for the steam heating roll in use, after the steam completes heat exchange in the heating roll, condensate water will be formed and gathered at the bottom of the heating roll, affecting the heating efficiency and service life of the equipment. At the same time, when steam is introduced again, if the condensate water fails to be discharged in time, the encounter between the steam and the condensate water may cause pipeline shock, and in severe cases, it may even cause pipeline rupture and steam leakage. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that the condensate water gathered at the bottom of the heating roll cannot be automatically discharged and recycled in time.

[0005] To achieve the above purpose, the present application proposes an automatic drainage system for condensate water of a fiber heating roll, including: a box body; a heating roll provided at the upper end of the side wall of the box body; a pipeline provided inside the box body and connected to the heating roll; and a control valve provided on the pipeline; wherein, the heating roll includes: a heating cavity; a rotating shaft connecting the heating cavity and the box body, and a siphon tube passing through the rotating shaft and connecting the heating cavity and the pipeline, and the pipeline includes: a steam input part connecting the steam input port to the end of the rotating shaft; a condensate water recovery part connecting the end of the rotating shaft to the condensate water outlet; a steam recovery part connecting the condensate water recovery part to the steam outlet.

[0006] For the automatic drainage system for condensate water of a fiber heating roll of the present application, by providing corresponding passages at the end of the rotating shaft of the heating roll to connect the steam input part, the condensate water recovery part and the steam recovery part, and setting corresponding control valves on the steam input path, the condensate water recovery path and the steam recovery path in the pipeline, when condensate water gathers at the bottom of the heating roll, automatic drainage of the condensate water and recovery and utilization of the condensate water and steam can be achieved, solving the problem in the prior art that the condensate water gathered at the bottom of the heating roll cannot be automatically discharged and recycled in time.

[0007] As an improvement of the above siphon tube of the present application, to ensure that the condensate water gathered at the bottom of the heating roll is discharged in time, the input end of the siphon tube is connected to the bottommost end of the heating cavity.

[0008] As an improvement to the above-mentioned box body of the present application, in order to construct a corresponding circulation path for condensate and steam and provide an installation space for pipelines, the box body includes: a placement cavity located in the upper part of the box body; a water storage cavity located in the lower part of the box body; a partition layer separating the placement cavity and the water storage cavity; a steam inlet penetrating the top surface of the box body; a steam outlet and a condensate outlet located on the corresponding side walls of the placement cavity and the water storage cavity.

[0009] As an improvement to the above-mentioned steam input part of the present application, in order to transport hot steam from the steam inlet to the heating cavity of the heating roller, the steam input part includes: a T-shaped steam input pipe connected to the steam inlet; a steam input branch pipe connecting the lower bottom surface of the T-shaped steam input pipe to the end of the rotating shaft.

[0010] As an improvement to the above-mentioned condensate recovery part of the present application, in order to recover condensate from the heating cavity to the water storage cavity, the condensate recovery part includes: a condensate recovery branch pipe connected to the end of the rotating shaft; a condensate recovery pipe connecting the condensate recovery branch pipe and penetrating the partition layer to the water storage cavity.

[0011] As an improvement to the above-mentioned steam recovery part of the present application, in order to recover the cold steam after heat exchange is completed, the steam recovery part includes: a steam recovery branch pipe connecting the introduction branch of the condensate recovery branch pipe, collecting the output end of the steam recovery branch pipe, and a steam recovery pipe connecting to the steam outlet.

[0012] Further, in order to control the steam input path, a control valve is provided on the steam input branch pipe.

[0013] Further, in order to control the condensate recovery path, a control valve is provided on the condensate recovery branch pipe.

[0014] Further, in order to control the steam recovery path, a control valve is provided on the steam recovery branch pipe.

[0015] Further, in order to separately control the condensate recovery path and the steam recovery path, a control valve is provided on the branch of the condensate recovery branch pipe relative to the steam recovery branch pipe.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The automatic condensate drainage system for the fiber heating roll of the present application connects the steam input part, the condensate recovery part, and the steam recovery part through corresponding passages at the end of the rotating shaft of the heating roll, and sets corresponding control valves on the steam input path, the condensate recovery path, and the steam recovery path in the pipeline. When condensate accumulates at the bottom of the heating roll, it can achieve the automatic drainage of condensate and the recycling of condensate and steam, solving the problem that the condensate accumulated at the bottom of the heating roll in the prior art cannot be automatically drained and recycled in time.

[0018] 2. The condensate recovery path and the steam recovery path of the present application share the same input port on the rotating shaft of the heating roll. On the one hand, when there is no condensate formed at the bottom of the heating roll, the relatively low-temperature water vapor that has completed heat exchange is pushed into the input port of the steam recovery path by the steam pressure during the continuous introduction of the relatively high-temperature water vapor into the heating chamber at the input port, and finally the circulation of water vapor is completed. On the other hand, when condensate accumulates at the bottom of the heating roll, due to the siphon effect, the condensate is pushed into the input port of the siphon by the steam pressure, and finally the recovery of condensate is completed. The separate control of the recovery of steam and condensate can be realized through the control valves on their respective branches, and the two do not affect each other.

[0019] 3. The condensate recovery path and the steam recovery path of the present application share the same input port on the rotating shaft of the heating roll. Since the object of steam recovery is the relatively low-temperature water vapor that has completed heat exchange but has not yet condensed, the relatively low-temperature water vapor is more likely to condense and adhere to the pipe wall, affecting the subsequent recovery of water vapor. Sharing the same input port and a part of the pipeline can, during the process of condensate flowing into the water storage tank during the condensate recovery process, take away the condensate adhering to the siphon and the pipeline shared by the condensate recovery path and the steam recovery path, improving the recovery efficiency of water vapor. The two cooperate with each other to improve the recovery efficiency of condensate and steam. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of an automatic condensate drainage system for a fiber heating roll in an embodiment of the present application;

[0022] Figure 2 It is a cross-sectional view of the heating roll in an embodiment of the present application;

[0023] Description of the Reference Numerals:

[0024] 1. Box body; 11. Placing cavity; 12. Water storage cavity; 13. Partition layer; 14. Steam inlet; 15. Steam outlet; 16. Condensate outlet;

[0025] 2. Heating roller; 21. Heating cavity; 22. Rotating shaft; 23. Siphon tube;

[0026] 3. Pipe; 31. Steam input part; 311. T-shaped steam input pipe; 312. Steam input branch pipe; 32. Condensate recovery part; 321. Condensate recovery branch pipe; 322. Condensate recovery pipe; 33. Steam recovery part; 331. Steam recovery branch pipe; 332. Steam recovery pipe;

[0027] 4. Control valve. Detailed implementation mode

[0028] The following will combine with the attached Figures 1 - 2 The embodiments of the technical solutions of the present application will be described in detail. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] As Figures 1 - 2 Fig. shows an automatic condensate drainage system for a fiber heating roller of the present application. The automatic condensate drainage system for the heating roller includes: a box body 1; a heating roller 2 arranged at the upper end of the side wall of the box body 1; a pipe 3 arranged inside the box body 1 and connected to the heating roller 2; and a control valve 4 arranged on the pipe 3; wherein, the heating roller 2 includes: a heating cavity 21; a rotating shaft 22 connecting the heating cavity 21 and the box body 1, and a siphon tube 23 passing through the rotating shaft 22 and connecting the heating cavity 21 and the pipe 3, and the pipe 3 includes: a steam input part 31 connecting the steam inlet 14 to the end of the rotating shaft 22; a condensate recovery part 32 connecting the end of the rotating shaft 22 to the condensate outlet 16; a steam recovery part 33 connecting the condensate recovery part 32 to the steam outlet 15.

[0030] In an embodiment of the present application, the heating roller 2 is installed at the upper end of the side wall of the box body 1, and a heating cavity 21 is arranged inside it, which is used to introduce hot steam to complete heat exchange and then heat the fibers attached to the outer wall of the heating cavity; the heating roller 2 is connected to the box body 1 through the rotating shaft 22, and the rotating shaft 22 not only plays a supporting role but also serves as a channel for steam and condensate transmission. In particular, a siphon tube 23 passes through the inside of the rotating shaft 22, and its input end is directly connected to the bottom end of the heating cavity 21 to ensure that the condensate generated during the heating process can be quickly converged and discharged. In order to realize the input of steam, the recovery of condensate and the recycling of steam, the pipe 3 includes a steam input part 31, a condensate recovery part 32 and a steam recovery part 33.

[0031] In the prior art, the condensed water accumulated at the bottom of the heating roller 2 needs to be discharged by manually starting and stopping the heating roller 2. This method can only be implemented after the condensed water has accumulated to a certain amount. During the process of the condensed water accumulating to the amount suitable for discharge, as the heating roller rotates, it will affect the hot steam in the heating chamber, thereby affecting the drying efficiency.

[0032] In this embodiment, by providing corresponding passages at the end of the rotating shaft of the heating roller to connect the steam input part, the condensed water recovery part and the steam recovery part, and providing corresponding control valves on the steam input path, the condensed water recovery path and the steam recovery path in the pipeline, when the condensed water converges at the bottom of the heating roller, automatic discharge of the condensed water and recovery and utilization of the condensed water and steam can be achieved, solving the problem that the condensed water converging at the bottom of the heating roller in the prior art cannot be automatically discharged in time and recovered and utilized.

[0033] Continue to refer to Figure 1 , in a further embodiment, the box body 1 is composed of a placement cavity 11, a water storage cavity 12 and a partition layer 13. The placement cavity 11 is located in the upper part of the box body 1 and is used for installing and fixing components such as the heating roller 2; the water storage cavity 12 is located in the lower part of the box body 1 and is used for storing the recovered condensed water. The highest liquid level of the water storage cavity 12 is lower than the bottom end of any heating roller 2 to ensure the siphon effect. The partition layer 13 effectively separates the placement cavity 11 from the water storage cavity 12 to ensure the independent functions of the two. A steam input port 14 is provided at the top of the box body 1 for introducing external steam; steam outlets 15 and condensed water outlets 16 are respectively provided on the corresponding side walls of the placement cavity 11 and the water storage cavity 12 for discharging the recovered steam and condensed water.

[0034] Further, continue to refer to Figure 1 、 Figure 2 , the steam input part 31 is composed of a T-shaped steam input pipe 311 and steam input branch pipes 312. One end of the T-shaped steam input pipe 311 is connected to the steam input port 14, and the other end branches out multiple steam input branch pipes 312, which are directly connected to the end of the rotating shaft 22 to send steam into the heating chamber 21 for heating. In order to control the input of steam, a control valve 4 is provided on the steam input branch pipe 312.

[0035] Further, continue to refer to Figure 1 、 Figure 2 , the condensed water recovery part 32 is composed of a condensed water recovery branch pipe 321 and a condensed water recovery pipe 322. When condensed water is generated at the bottom of the heating chamber 21, due to the siphon effect, the condensed water enters the condensed water recovery branch pipe 321 through the siphon pipe 23, and then flows through the condensed water recovery pipe 322 through the partition layer 13 into the water storage cavity 12 for storage. In order to control the recovery of condensed water, a control valve 4 is also provided on the condensed water recovery branch pipe 321.

[0036] Further, continue to refer to Figure 1 and Figure 2 . The steam recovery section 33 is used to recover the water vapor that has cooled but not yet condensed after heat exchange. It consists of steam recovery branch pipes 331 and a steam recovery pipe 332. The steam recovery branch pipe 331 is connected to the inlet branch of the condensate recovery branch pipe 321, and uses the steam pressure to introduce the low-temperature steam into the steam recovery pipe 332, and finally discharges it through the steam outlet 15 to achieve the recycling of steam. To control the steam recovery, a control valve 4 is also provided on the steam recovery branch pipe 331.

[0037] Further, during the actual working process, when the steam enters the heating chamber 21 through the steam input section 31 for heating, part of the steam will exchange heat with the material and cool down. If there is no condensate formed at the bottom of the heating chamber 21, these low-temperature steams will be pushed into the steam recovery section 33 under the action of the steam pressure and discharged through the steam recovery pipe 332. When condensate accumulates at the bottom of the heating chamber 21, the siphon pipe 23 comes into play and automatically sucks the condensate into the condensate recovery section 32, and finally discharges it into the water storage chamber 12. Through the control valves 4 on each branch, separate control of the steam input, condensate recovery, and steam recovery paths can be achieved, ensuring the flexibility and efficiency of the system.

[0038] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application.

[0039] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "connected", "installed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic drainage system for condensed water from a fiber heating roller, characterized in that: include: A box body (1); a heating roller (2) disposed at the upper end of a side wall of the box body (1); a pipe (3) disposed inside the box body (1) and connected to the heating roller (2); and a control valve (4) arranged on the pipeline (3); wherein the heating roller (2) comprises: a heating chamber (21); a rotating shaft (22) connecting the heating chamber (21) and the housing (1); and a siphon tube (23) passing through the rotating shaft (22) and connecting the heating chamber (21) and the pipeline (3); the pipeline (3) comprises: a steam input portion (31) connecting the steam input port (14) to the end of the rotating shaft (22); a condensate recovery portion (32) connecting the end of the rotating shaft (22) to the condensate outlet (16); and a steam recovery portion (33) connecting the condensate recovery portion (32) to the steam outlet (15).

2. The automatic drainage system for condensed water from a heating roller according to claim 1, characterized in that: The input end of the siphon tube (23) is connected to the bottom end of the heating chamber (21).

3. The automatic drainage system for condensed water from a heating roller according to claim 1, characterized in that: The box body (1) comprises: a placement chamber (11) located at the upper part of the box body (1); a water storage chamber (12) located at the lower part of the box body (1); a partition (13) separating the placement chamber (11) and the water storage chamber (12); a steam input port (14) penetrating the top surface of the box body (1); and a steam outlet (15) and a condensed water outlet (16) located at corresponding side walls of the placement chamber (11) and the water storage chamber (12).

4. The automatic drainage system for condensed water from a heating roller according to claim 1, 2 or 3, characterized in that: The steam input portion (31) comprises: a T-shaped steam input pipe (311) connected to the steam input port (14); and a steam input branch pipe (312) connecting the lower surface of the T-shaped steam input pipe (311) to the end of the rotating shaft (22).

5. The automatic drainage system for condensed water from a heating roller according to claim 1, 2 or 3, characterized in that: The condensed water recovery portion (32) comprises: a condensed water recovery branch pipe (321) connected to the end of the rotating shaft (22); and a condensed water recovery pipe (322) connected to the condensed water recovery branch pipe (321) and penetrating the partition layer (13) to the water storage chamber (12).

6. The automatic drainage system for condensed water from a heating roller according to claim 1 or 3, characterized in that: The steam recovery section (33) comprises: a steam recovery branch pipe (331) connected to the condensate recovery branch pipe (321) and introduced into a branch circuit, and a steam recovery pipe (332) collecting the output end of the steam recovery branch pipe (331) and connected to the steam outlet (15).

7. The automatic drainage system for condensed water from a heating roller according to claim 4, characterized in that: The steam input branch pipe (312) is provided with a control valve (4).

8. The automatic drainage system for condensed water from a heating roller according to claim 5, characterized in that: The condensed water recovery branch pipe (321) is provided with a control valve (4).

9. The automatic drainage system for condensed water from a heating roller according to claim 6, characterized in that: The steam recovery branch pipe (331) is provided with a control valve (4).

10. The automatic drainage system for condensed water from a heating roller according to claim 5, characterized in that: A control valve (4) is provided on the branch of the condensate recovery branch pipe (321) relative to the steam recovery branch pipe (331).

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