Tail steam recycling device of steam flow heater

Abstract

The utility model relates to the technical field of tail steam recycling, in particular to a tail steam recycling device of a steam flow heater. The device comprises a plurality of groups of main radiating fins which are arranged side by side, steam inlet ends of the groups of main radiating fins are respectively arranged on a steam supply pipeline in parallel through steam inlet branch pipes, steam outlet ends of the groups of main radiating fins are respectively arranged on a steam return pipeline in parallel through steam outlet branch pipes, and a first steam trap is arranged on the steam return pipeline; and a plurality of groups of auxiliary radiating fins are arranged on one side of the main radiating fins. The device is reasonable in structural design and convenient to use, tail steam generated by the steam flow heater can be secondarily and effectively utilized, heat in the tail steam is reused, waste of the heat in the tail steam is effectively avoided, more condensate water can be generated by the secondarily-utilized tail steam and can be discharged into a hot soft water tank to be used as process water, and energy is saved. The utilization rate of water resources is further reduced, and the problems in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail steam recycling, in particular to a tail steam recycling device for a steam flow heater. Background Art

[0002] Cellulose needs to go through a filtering process during the production process. The moisture content of the cellulose separated by filtration is still 60%. Therefore, a drying device is needed to dry the cellulose to control its moisture content below 5%. The steam flow heater is the main heating equipment of the drying equipment. After the steam continuously dissipates heat through each group of heat sinks, the air in the area is continuously heated, and the hot air is drawn into the drying device through the fan. However, in the existing steam flow heater, the tail steam formed after the steam circulates out of each group of heat sinks is usually discharged directly into the atmosphere. But this part of the tail steam still has a high heat content. Obviously, this part of the heat source cannot be effectively utilized, resulting in its waste, and increasing the utilization rate of water resources. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a device for recycling tail steam from a steam flow heater. The device has a reasonable structural design and is easy to use. The tail steam generated by the steam flow heater can be effectively utilized for a second time, so that the heat in the tail steam can be utilized again, effectively avoiding the waste of heat in the tail steam. The secondary utilized tail steam can generate more condensed water, which can be discharged into a hot soft water tank for use as process water, further reducing the utilization rate of water resources and solving the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A device for recycling tail steam of a steam flow heater comprises a plurality of groups of main radiators arranged in parallel, wherein the steam inlet ends of each group of main radiators are respectively arranged in parallel on a steam supply pipeline via a steam inlet branch pipe, and the steam outlet ends thereof are respectively arranged in parallel on a steam return pipeline via a steam outlet branch pipe, and a first steam trap is arranged on the steam return pipeline; a plurality of groups of auxiliary radiators are arranged on one side of the main radiators, wherein the steam inlet ends of each group of auxiliary radiators are respectively arranged in parallel on a steam return pipeline via a steam return inlet branch pipe, and the steam outlet ends thereof are respectively arranged in parallel on a steam exhaust pipeline via a steam return outlet branch pipe, and a second steam trap is arranged on the steam exhaust pipeline.

[0006] Optionally, the main heat sinks are in eight groups.

[0007] Optionally, the auxiliary heat sinks are in two groups.

[0008] Optionally, each of the auxiliary heat sinks is arranged side by side with each group of main heat sinks.

[0009] The utility model adopts the above technical scheme, and has the advantages of reasonable structural design, easy use, and can make effective secondary utilization of the tail steam generated by the steam heater, so that the heat in the tail steam can be reused, effectively avoiding the waste of heat in the tail steam, and the secondary utilized tail steam can produce more condensed water, which can be discharged to the hot soft water tank for use as process water, further reducing the utilization rate of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] In the figure, 1. main heat sink; 2. steam inlet branch pipe; 3. steam supply pipeline; 4. steam outlet branch pipe; 5. return steam pipeline; 6. first steam trap; 7. auxiliary heat sink; 8. return steam inlet branch pipe; 9. return steam outlet branch pipe; 10. exhaust pipeline; 11. second steam trap. DETAILED DESCRIPTION

[0012] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. In the following description, many specific details are described to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0013] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0014] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0015] As shown in the figure, in this embodiment, a device for recycling tail steam of a steam flow heater comprises a plurality of groups of main radiators 1 arranged side by side, the steam inlet ends of each group of main radiators 1 are respectively arranged in parallel on a steam supply pipeline 3 via a steam inlet branch pipe 2, and the steam outlet ends thereof are respectively arranged in parallel on a steam return pipeline 5 via a steam outlet branch pipe 4, and a first steam trap 6 is arranged on the steam return pipeline 5; a plurality of groups of auxiliary radiators 7 are arranged on one side of the main radiator 1, the steam inlet ends of each group of auxiliary radiators 7 are respectively arranged in parallel on the steam return pipeline 5 via a steam return inlet branch pipe 8, and the steam outlet ends thereof are respectively arranged in parallel on an exhaust pipeline 10 via a steam return outlet branch pipe 9, and a second steam trap 11 is arranged on the exhaust pipeline 10.

[0016] Optionally, the main heat sinks 1 are in eight groups.

[0017] Optionally, the auxiliary heat sinks 7 are in two groups.

[0018] Optionally, each of the auxiliary heat sinks 7 is arranged side by side with each group of main heat sinks 1 .

[0019] When the device is in use, steam enters the steam supply pipeline 3, and enters the corresponding main radiator 1 through each steam inlet branch pipe 2, and transfers the heat of the steam through each group of main radiator 1, thereby heating the air in the area. The steam after heat exchange forms tail steam, which still has a relatively high heat. The tail steam passes through the return steam pipeline 5, each return steam inlet branch pipe 8, and enters the corresponding auxiliary radiator 7, thereby releasing heat for the second time through each group of auxiliary radiator 7. The tail steam after the secondary heat exchange enters the exhaust pipeline 10 through the return steam outlet branch pipe 9, and is discharged into the atmosphere. The first steam trap 6 can discharge a small amount of condensed water accumulated in the return steam pipeline 5 in time, reduce the condensed water and lower the temperature of the tail steam in the return steam pipeline 5, and the discharged condensed water is discharged to the hot soft water tank for process water. The second steam trap 11 timely discharges the condensed water accumulated in the exhaust pipe 10. Since the tail steam is reused for the second time, its temperature is not high, and more condensed water is formed in the exhaust pipe 10. This part of condensed water is discharged to the hot soft water tank for process water. It has a reasonable structural design and is easy to use. It can effectively reuse the tail steam generated by the steam heater for the second time, so that the heat in the tail steam can be reused, effectively avoiding the waste of heat in the tail steam. The second-use tail steam can generate more condensed water, which can be discharged to the hot soft water tank for process water, further reducing the utilization rate of water resources and solving the problems existing in the prior art.

[0020] 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 above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. 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, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention are within the protection scope of the present invention.

[0021] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A steam heater tail steam recycling device, characterized in that: It comprises a plurality of groups of main radiators arranged in parallel, wherein the steam inlet ends of each group of main radiators are respectively arranged in parallel on the steam supply pipeline via the steam inlet branch pipe, and the steam outlet ends thereof are respectively arranged in parallel on the steam return pipeline via the steam outlet branch pipe, and a first steam trap is arranged on the steam return pipeline; a plurality of groups of auxiliary radiators are arranged on one side of the main radiator, wherein the steam inlet ends of each group of auxiliary radiators are respectively arranged in parallel on the steam return pipeline via the steam return inlet branch pipe, and the steam outlet ends thereof are respectively arranged in parallel on the steam exhaust pipeline via the steam return outlet branch pipe, and a second steam trap is arranged on the steam exhaust pipeline.

2. The device for recycling tail steam from a steam heater according to claim 1, characterized in that: The main heat sinks are divided into eight groups.

3. The device for recycling tail steam from a steam heater according to claim 1, characterized in that: The auxiliary heat sinks are divided into two groups.

4. The device for recycling tail steam from a steam heater according to claim 1, characterized in that: Each of the auxiliary heat sinks is arranged side by side with each group of main heat sinks.

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