CN218820326U - Serpentine coal economizer with zigzag-rising boiling section - Google Patents
Serpentine coal economizer with zigzag-rising boiling section Download PDFInfo
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- CN218820326U CN218820326U CN202221876735.7U CN202221876735U CN218820326U CN 218820326 U CN218820326 U CN 218820326U CN 202221876735 U CN202221876735 U CN 202221876735U CN 218820326 U CN218820326 U CN 218820326U
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Abstract
The utility model discloses a serpentine economizer that tortuous boiling section rises belongs to boiler waste heat utilization field. The utility model discloses a design the coiled pipe for horizontal segment and tortuous ascending section, the discharge of steam when economizer heat transfer medium boils is favorable to in the setting of tortuous ascending section, avoids steam to adsorb the pipe wall, influences heat exchange efficiency, avoids soda to strike simultaneously, has guaranteed the safety of economizer pipeline.
Description
Technical Field
The utility model belongs to boiler waste heat utilization field, concretely relates to serpentine economizer that tortuous boiling section rises.
Background
The economizer is arranged in a flue at the tail part of the boiler and is used for recovering the waste heat of the discharged smoke. The economizer absorbs the heat of high-temperature flue gas, improves the water supply temperature of the boiler, reduces the flue gas exhaust temperature, can save energy and improve the efficiency of the boiler, and is called as the economizer. The economizer is divided according to whether the temperature of the medium at the outlet of the economizer reaches the saturation temperature or not, and can be divided into a boiling economizer and a non-boiling economizer. When the water temperature at the outlet of the economizer reaches the saturation temperature under the working pressure or steam is generated in the economizer, the economizer is called a boiling economizer. The water temperature at the outlet of the economizer is lower than the saturation temperature under the working pressure, and the economizer is called a non-boiling economizer. The steam and water temperature difference is large, when the steam meets water, violent heat exchange can occur, the volume of partial steam is suddenly reduced, partial vacuum is caused, vibration and sound are simultaneously accompanied, the steam-water impact is called, and the strength of the steam-water impact is related to the steam-water temperature difference, the pressure and the steam quantity. Steam impingement generally occurs in a boiling economizer. The steam content of the working medium at the outlet of the economizer is called as the boiling rate, and in order to ensure the safety of equipment, the boiling rate of the economizer is not more than 30 percent. Steam can be generated after the temperature of a medium of the economizer reaches a saturation temperature, the steam is easily adhered to the pipe wall in the economizer to separate water from the pipe wall, so that heat absorbed by the pipe cannot be timely transferred away, the temperature of the pipe wall is rapidly increased, and the pipe explosion of the economizer pipe is easily caused under the action of steam-water impact.
In order to solve the problems, the coal economizer capable of avoiding steam-water impact is provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a serpentine pipe economizer that boiling section tortuous rises which produces the problem that soda strikes to serpentine pipe boiling section.
The embodiment of the utility model discloses a realize through following technical scheme:
a serpentine economizer with a boiling section that meanders, wherein the serpentine comprises a horizontal section and a meandered rising section.
In an embodiment of the present invention, the rising angle of the zigzag rising section is 2 to 3 degrees.
In an embodiment of the present invention, the horizontal section includes an elbow and a straight pipe, and the straight pipes of the horizontal section are parallel to each other.
In an embodiment of the present invention, the zigzag ascending section includes an elbow pipe and a straight pipe, and an ascending angle of 2 to 3 degrees exists between the straight pipe and the straight pipe of the horizontal section.
In an embodiment of the present invention, the heat exchanger further comprises a supporting device, wherein the supporting device is fixedly connected with the coiled pipe.
In an embodiment of the present invention, the support device includes an economizer support beam and an economizer support frame, and the economizer support frame is vertically connected to the economizer support beam for fixing the serpentine tube in a vertical direction.
The utility model discloses an in the embodiment, still include economizer entry collection case and economizer export collection case, economizer entry collection case and horizontal segment intercommunication for distribute the water source, economizer export collection case and tortuous ascending section intercommunication for collect the water source.
In an embodiment of the present invention, the length of the zigzag rising section is greater than the length of the boiling section.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the embodiment of the utility model provides a through set up the coiled pipe into tortuous upper reaches and horizontal segment, the steam that produces after the boiling can in time be discharged away, is favorable to steam to upwards discharge, has solved the problem of soda impact.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of the present invention;
an icon: 1-a coiled pipe, 2-a coal economizer inlet header, 3-a coal economizer outlet header, 4-a support frame, 5-a support beam, 6-a water outlet and 7-a water inlet.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the directions or positional relationships indicated by the terms "inside" and "outside" are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be interpreted as a limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present embodiment provides a serpentine pipe 1 economizer with a boiling section that meanders. The economizer is a heating surface which is arranged in a flue at the tail part of a boiler and used for recovering waste heat of exhaust smoke. When the temperature of a medium of the economizer reaches a saturation temperature, steam can be generated and is easily adhered to the pipe wall in the economizer to separate water from the pipe wall, so that the heat absorbed by the pipe cannot be transferred away in time, the temperature of the pipe wall is rapidly increased, and the pipe explosion of the economizer pipe is easily caused under the action of steam-water impact.
In the present embodiment, in order to solve the above problem, the serpentine tube 1 is divided into a zigzag rising section and a horizontal section. According to the heat transfer characteristics, the boiling section of the economizer is arranged at the tail end of the coiled pipe 1, so that steam generated after boiling is prevented from being adhered to the inner part of the pipe wall of the coiled pipe 1 and cannot be discharged in time, the tail end of the coiled pipe 1 is made into a zigzag ascending structure, and the steam can be discharged from the coiled pipe 1 upwards. In order to control the whole height of the screen 1 of the coiled pipe and ensure that the bubbles can be discharged smoothly, the rising angle of the boiling section is preferably 2-3 degrees. The length of the zigzag rising section is calculated according to the boiling rate, the length of the zigzag rising section is ensured to be larger than that of the boiling section, and the length of the zigzag rising section is the full-line length from the starting end to the ending end of the zigzag rising section. In this embodiment, the horizontal segment includes straight tube and return bend, and the initiating terminal of horizontal segment is a straight tube, and this straight tube one end is left and is made water inlet 7, and the other end is connected with a return bend, and the straight tube is connected with the return bend in turn, is parallel to each other between the straight tube, and is located the coplanar. The height of the horizontal section is determined according to the requirement, the terminating end of the horizontal section is a bent pipe, and a connector is reserved on the bent pipe. The tortuous ascending section comprises an elbow and a branch pipe, the starting end of the tortuous ascending section is a straight pipe, the straight pipe is connected with the elbow at the terminating end of the horizontal section, the same as the horizontal section, the straight pipe is alternately connected with the elbow, the terminating end of the tortuous ascending section is a straight pipe, one end of the straight pipe is connected with the elbow, and the other end of the straight pipe is reserved as a water outlet 6. All the straight pipes of the zigzag ascending section and the straight pipes of the horizontal section have an ascending angle, and the ascending angles between two adjacent straight pipes are opposite in direction.
In this embodiment, support means are provided to which the serpentine tube 1 can be secured for subsequent use and installation. The supporting device comprises a supporting beam 5 and a supporting frame 4, wherein the supporting frame 4 is used for fixing the coiled pipe 1 in the vertical direction. The support beam 5 is used for bearing the weight of the screen of the serpentine pipe 1, and the support frame 4 is vertically fixed on the support beam 5. A plurality of support frames 4 can be fixed on the support beam 5, and the support frames 4 with different quantities and different intervals can be fixed on the support beam 5 according to requirements, so that different heat exchange efficiencies can be achieved.
In this embodiment, an economizer inlet header 2 and an economizer outlet header 3 are further provided, and the economizer inlet header 2 is communicated with the water inlet 7 and used for distributing water to the serpentine pipe 1. The economizer outlet header 3 is connected with the water outlet 6 and is used for collecting the water source discharged by the coiled pipe 1.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a coiled pipe economizer that boiling section tortuous rising which characterized in that, the coiled pipe includes horizontal segment and tortuous rising section, still includes strutting arrangement, economizer entry collection case and economizer export collection case, strutting arrangement and coiled pipe fixed connection, strutting arrangement includes economizer supporting beam and economizer support frame, economizer support frame and economizer supporting beam are perpendicular to be connected for at the fixed coiled pipe of vertical direction, economizer entry collection case and horizontal segment intercommunication are used for distributing the water source, economizer export collection case and tortuous rising section intercommunication are used for colleting the water source.
2. The economizer of claim 1 wherein,
the rising angle of the zigzag rising section is 2-3 degrees.
3. The economizer of claim 1,
the horizontal section comprises an elbow and a straight pipe, and the straight pipes of the horizontal section are parallel to each other.
4. The economizer of claim 3,
the zigzag ascending section comprises an elbow and a straight pipe, and 2-3-degree ascending angles exist between the straight pipes and the straight pipe of the horizontal section.
5. The economizer of claim 1,
the length of the tortuous sections is greater than the length of the boiling section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876735.7U CN218820326U (en) | 2022-07-13 | 2022-07-13 | Serpentine coal economizer with zigzag-rising boiling section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876735.7U CN218820326U (en) | 2022-07-13 | 2022-07-13 | Serpentine coal economizer with zigzag-rising boiling section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218820326U true CN218820326U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876735.7U Active CN218820326U (en) | 2022-07-13 | 2022-07-13 | Serpentine coal economizer with zigzag-rising boiling section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218820326U (en) |
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2022
- 2022-07-13 CN CN202221876735.7U patent/CN218820326U/en active Active
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