CN210069828U - Double-drum longitudinal water pipe boiler superheater - Google Patents
Double-drum longitudinal water pipe boiler superheater Download PDFInfo
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- CN210069828U CN210069828U CN201920735827.5U CN201920735827U CN210069828U CN 210069828 U CN210069828 U CN 210069828U CN 201920735827 U CN201920735827 U CN 201920735827U CN 210069828 U CN210069828 U CN 210069828U
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Abstract
The utility model discloses a double-drum longitudinal water pipe boiler superheater, which comprises a low-temperature superheater pipe, a high-temperature superheater pipe, a desuperheater, a header A and a header B, wherein the inner cavity of the header A is a low-temperature superheater inlet header and a high-temperature superheater inlet header; the inner cavity of the header B is divided into an upper independent chamber and a lower independent chamber which are respectively a low-temperature superheater outlet header and a high-temperature superheater outlet header; the low-temperature overheating inlet header is communicated with the low-temperature overheating outlet header through a low-temperature overheating pipe, the low-temperature overheating outlet header is communicated with the high-temperature overheating inlet header through a desuperheater, and the high-temperature overheating inlet header is communicated with the high-temperature overheating outlet header through a high-temperature overheating pipe. The utility model discloses in, over heater import collection case and over heater export collection case are a whole, and the disconnection is cut apart with the steel sheet welding to inside in the middle of the collection case to make it arrange more reasonable, occupation space is littleer.
Description
Technical Field
The utility model relates to a boiler technical field, concretely relates to double-drum indulges formula water pipe boiler over heater.
Background
In power stations, locomotives and marine boilers, superheaters are generally installed to improve the cycle thermal efficiency of the entire steam power plant. The superheater is a part in the boiler that further heats steam from a saturation temperature to a superheat temperature, and is also called a steam superheater. The superheater can be divided into a convection type, a radiation type and a semi-radiation type according to the heat transfer mode; according to the structure characteristics, the device can be divided into a serpentine tube type, a screen type, a wall type and a wall wrapping type. They are all composed of a plurality of parallel pipes and inlet and outlet headers.
In a general double-drum longitudinal water tube boiler, since a superheater is large in volume, the superheater is generally disposed on the rear side of the boiler. Due to the position limitation of the upper and lower drums arranged at the rear side part of the double-drum longitudinal water pipe boiler, the arrangement of components such as a low-temperature superheater, a desuperheater, a high-temperature superheater and the like of the superheater is required to be arranged in a narrow space between the upper and lower drums. This not only makes the installation, arrangement of the various components very difficult. And the arrangement is not beneficial to sealing of the superheater, high-temperature flue gas is easy to leak, the thermal efficiency of the boiler is influenced, and potential safety hazards exist.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a double-drum indulges formula water pipe boiler superheater, has solved double-drum indulges formula water pipe boiler and has arranged the superheater in the boiler rear side usually, because the space that is used for the superheater installation is subject to the interval between upper and lower boiler drum, its installation space is less, be unfavorable for the sealed technical problem of superheater. The utility model discloses in, carry out redesign through arranging and the structure to each collection case to make the volume of over heater reduce, can install smoothly between upper and lower boiler barrel, and guarantee good leakproofness.
The utility model adopts the technical scheme as follows:
a double-drum longitudinal water pipe boiler superheater comprises a low-temperature superheater pipe, a high-temperature superheater pipe, a desuperheater, a header A and a header B, wherein the header A and the header B are arranged in parallel; a partition plate B is arranged in the header B, and divides the inner cavity of the header B into an upper independent chamber and a lower independent chamber which are respectively a low-temperature superheater outlet header and a high-temperature superheater outlet header;
the discharge end of the low-temperature superheater inlet header is communicated with the feed end of the low-temperature superheater outlet header through a low-temperature superheater pipe, and the discharge end of the low-temperature superheater outlet header is communicated with the feed end of the desuperheater; the discharge end of the desuperheater is communicated with the feed end of the high-temperature superheater inlet header, and the discharge end of the high-temperature superheater inlet header is communicated with the feed end of the high-temperature superheater outlet header through a high-temperature superheater pipe.
The utility model discloses a high, low over heater collection case arranges side by side in the side of boiler, and the flue gas erodees high, low temperature over heater collection case simultaneously, and is respond well. And the high-temperature superheat tube and the low-temperature superheat tube penetrate out of the gap between the side wall water wall tubes and are connected with the corresponding header, so that the integrity of the boiler membrane wall is ensured, the gap between the water wall tubes can be utilized, and the occupied space of the superheater is further reduced.
Saturated steam generated by the boiler is led out from the upper boiler and then enters the low-temperature superheater inlet header through the feeding end of the low-temperature superheater inlet header, and then enters the low-temperature superheater outlet header after heat exchange with flue gas when passing through the low-temperature superheater tubes. Steam enters the desuperheater after passing through the low-temperature superheater outlet header, the steam after passing through the desuperheater enters the high-temperature superheater inlet header and then enters the high-temperature superheater tubes, and the steam finally enters the high-temperature superheater outlet header after passing through the high-temperature superheater tubes and exchanging heat with flue gas.
The utility model discloses in, over heater import collection case and over heater export collection case are a whole, and the disconnection is cut apart with the steel sheet welding to inside in the middle of the collection case, specifically: the method comprises the steps of setting a low-temperature superheater inlet header and a high-temperature superheater outlet header in a superheater into an integral header A, and setting a low-temperature superheater outlet header and a high-temperature superheater outlet header into an integral header B. The superheater inlet header and the superheater outlet header are integrated, so that the installation space and the installation times required by the headers are reduced, and the position setting of the headers is utilized, so that the low-temperature superheater tubes are positioned between the low-temperature superheater inlet header and the low-temperature superheater outlet header, and the high-temperature superheater tubes are positioned between the high-temperature superheater inlet header and the high-temperature superheater outlet header, and the arrangement of the low-temperature superheater tubes and the high-temperature superheater tubes is facilitated; the low-temperature superheater tubes and the high-temperature superheater tubes are coiled between the upper drum and the lower drum, and the space between the upper drum and the lower drum is efficiently utilized, so that the superheater is more reasonable in arrangement and occupies less space.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model relates to a double-drum longitudinal water pipe boiler superheater, adopting high, low over heater collection case to arrange side by side in the side of boiler, the flue gas erodees high, low temperature over heater collection case simultaneously, respond well. The high-temperature superheat tube and the low-temperature superheat tube penetrate out of the gap between the side wall water wall tubes and are connected with the corresponding header tanks, so that the integrity of the membrane wall of the boiler is ensured, the gap between the water wall tubes can be utilized, and the occupied space of the superheater is further reduced;
2. the utility model relates to a double-drum longitudinal water pipe boiler superheater sets a whole header A with low temperature superheater import collection box and high temperature superheater export collection box in the superheater, sets a whole header B with low temperature superheater export collection box and high temperature superheater export collection box simultaneously. The superheater inlet header and the superheater outlet header are integrated, so that the installation space and the installation times required by the headers are reduced, and the position setting of the headers is utilized, so that the low-temperature superheater tubes are positioned between the low-temperature superheater inlet header and the low-temperature superheater outlet header, and the high-temperature superheater tubes are positioned between the high-temperature superheater inlet header and the high-temperature superheater outlet header, and the arrangement of the low-temperature superheater tubes and the high-temperature superheater tubes is facilitated; the low-temperature superheater tubes and the high-temperature superheater tubes are coiled between the upper drum and the lower drum, and the space between the upper drum and the lower drum is efficiently utilized, so that the superheater is more reasonable in arrangement and occupies less space.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are 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, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:
fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic structural view of a header B;
fig. 5 is a schematic structural view of the header a.
Reference numerals in the drawings indicate:
1-header A, 2-header B, 3-low-temperature superheater tube, 4-high-temperature superheater tube, 5-desuperheater, 6-partition plate A, 7-low-temperature superheater inlet header, 8-high-temperature superheater inlet header, 9-partition plate B, 10-low-temperature superheater outlet header, 11-high-temperature superheater outlet header, 12-seal box, 13-heat preservation material, 14-upper boiler barrel, 15-lower boiler barrel, 16-J tube, 17-U tube and 18-water wall tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as 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 embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 5.
Example 1
As shown in fig. 1-5, the utility model relates to a double-drum longitudinal-arranged water tube boiler superheater, which comprises a low-temperature superheater tube 3, a high-temperature superheater tube 4, a desuperheater 5, a header a1 and a header B2, wherein the header a1 is internally provided with a partition a6, the partition a6 divides the inner cavity of the header a1 into an upper and a lower independent chambers, namely a low-temperature superheater inlet header 7 and a high-temperature superheater inlet header 8; a partition plate B9 is arranged in the header B2, and the partition plate B9 divides the inner cavity of the header B2 into an upper independent chamber and a lower independent chamber which are respectively a low-temperature superheater outlet header 10 and a high-temperature superheater outlet header 11;
the discharge end of the low-temperature superheater inlet header 7 is communicated with the feed end of a low-temperature superheater outlet header 10 through a low-temperature superheater pipe 3, and the discharge end of the low-temperature superheater outlet header 10 is communicated with the feed end of a desuperheater 5; the discharge end of the desuperheater 5 is communicated with the feed end of a high-temperature superheater inlet header 8, and the discharge end of the high-temperature superheater inlet header 8 is communicated with the feed end of a high-temperature superheater outlet header 11 through a high-temperature superheater pipe 4.
The utility model discloses a high, low over heater collection case arranges side by side in the side of boiler, and the flue gas erodees high, low temperature over heater collection case simultaneously, and is respond well. And the high-temperature superheat tube and the low-temperature superheat tube penetrate out of the gap of the side wall water wall tube 18 and are connected with the corresponding header, so that the integrity of the membrane wall of the boiler is ensured, the gap between the water wall tubes 18 can be utilized, and the occupied space of the superheater is further reduced.
Saturated steam generated by the boiler is led out from the upper boiler and then enters the low-temperature superheater inlet header 7 through the feeding end of the low-temperature superheater inlet header 7, and then enters the low-temperature superheater outlet header 10 after heat exchange with flue gas when passing through the low-temperature superheater tubes 3. Steam enters the desuperheater 5 after passing through the low-temperature superheater outlet header 10, the steam after passing through the desuperheater 5 enters the high-temperature superheater inlet header 8 and then enters the high-temperature superheater tubes 4, and the steam finally enters the high-temperature superheater outlet header 11 after passing through the high-temperature superheater tubes and exchanging heat between the high-temperature superheater tubes 4 and flue gas.
The utility model discloses in, over heater import collection case and over heater export collection case are a whole, and the disconnection is cut apart with the steel sheet welding to inside in the middle of the collection case, specifically: the low-temperature superheater inlet header 7 and the high-temperature superheater outlet header 8 in the superheater are arranged into an integral header A1, and the low-temperature superheater outlet header 10 and the high-temperature superheater outlet header 11 are arranged into an integral header B2. The superheater inlet header and the superheater outlet header are integrated, so that the installation space and the installation times required by the headers are reduced, and the position setting of the headers is utilized, so that the low-temperature superheater tubes 3 are positioned between the low-temperature superheater inlet header 7 and the low-temperature superheater outlet header 10, and the high-temperature superheater tubes 4 are positioned between the high-temperature superheater inlet header 8 and the high-temperature superheater outlet header 11, and the arrangement of the low-temperature superheater tubes 3 and the high-temperature superheater tubes 4 is facilitated; the low-temperature superheater tubes and the high-temperature superheater tubes are coiled between the upper drum and the lower drum, and the space between the upper drum and the lower drum is efficiently utilized, so that the superheater is more reasonable in arrangement and occupies less space.
Example 2
This example is further illustrated for the feed and discharge configurations of the desuperheater 5.
As shown in fig. 1, 4 and 5, in the present invention, the discharge end of the low temperature superheater outlet header 10 is communicated with the feed end of the desuperheater 5 through a J-shaped pipe 16, and two ends of the J-shaped pipe 16 are respectively communicated with the low temperature superheater outlet header 10 and the desuperheater 5; the discharge end of the desuperheater 5 is communicated with the feed end of the high-temperature superheater inlet header 8 through a U-shaped pipe 17, and two ends of the U-shaped pipe 17 are respectively communicated with the desuperheater 5 and the high-temperature superheater inlet header 8.
Preferably, the low-temperature superheater tube 3 and the high-temperature superheater tube 4 are both serpentine tubes.
Example 3
The embodiment is a further implementation description of the arrangement of the present invention.
As shown in fig. 1, the utility model discloses in, the feed end and the discharge end of low temperature over heater import collection case 7 are located its top, bottom respectively, the feed end and the discharge end of low temperature over heater export collection case 10 are located its bottom, top respectively, the discharge end and the feed end of desuperheater 5 are located its top, bottom respectively, the feed end and the discharge end of high temperature over heater import collection case 8 are located its bottom, top respectively, the feed end and the discharge end of high temperature over heater export collection case 11 are located its top, bottom respectively.
Example 4
The embodiment is a further implementation description of the arrangement of the present invention.
As shown in fig. 3, in the present invention, the desuperheater 5, the header a1 and the header B2 are all located in the sealed box 12, and the sealed box 12 is filled with the thermal insulation material 13.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a double-drum indulges formula water pipe boiler over heater which characterized in that: the high-temperature superheater comprises a low-temperature superheater tube (3), a high-temperature superheater tube (4), a desuperheater (5), a header A (1) and a header B (2) which are arranged in parallel, wherein a partition plate A (6) is arranged inside the header A (1), and the partition plate A (6) divides the inner cavity of the header A (1) into an upper independent chamber and a lower independent chamber which are respectively a low-temperature superheater inlet header (7) and a high-temperature superheater inlet header (8); a partition plate B (9) is arranged in the header B (2), the partition plate B (9) divides the inner cavity of the header B (2) into an upper independent chamber and a lower independent chamber which are respectively a low-temperature superheater outlet header (10) and a high-temperature superheater outlet header (11);
the discharge end of the low-temperature superheater inlet header (7) is communicated with the feed end of a low-temperature superheater outlet header (10) through a low-temperature superheater pipe (3), and the discharge end of the low-temperature superheater outlet header (10) is communicated with the feed end of a desuperheater (5); the discharge end of the desuperheater (5) is communicated with the feed end of a high-temperature superheater inlet header (8), and the discharge end of the high-temperature superheater inlet header (8) is communicated with the feed end of a high-temperature superheater outlet header (11) through a high-temperature superheater pipe (4).
2. The superheater of the double-drum longitudinal water tube boiler as claimed in claim 1, wherein: the discharge end of the low-temperature superheater outlet header (10) is communicated with the feed end of the desuperheater (5) through a J-shaped pipe (16), and two ends of the J-shaped pipe (16) are respectively communicated with the low-temperature superheater outlet header (10) and the desuperheater (5); the discharge end of the desuperheater (5) is communicated with the feed end of the high-temperature superheater inlet header (8) through a U-shaped pipe (17), and two ends of the U-shaped pipe (17) are respectively communicated with the desuperheater (5) and the high-temperature superheater inlet header (8).
3. The superheater of the double-drum longitudinal water tube boiler as claimed in claim 1, wherein: the low-temperature superheater tube (3) and the high-temperature superheater tube (4) are both coiled tubes.
4. The superheater of the double-drum longitudinal water tube boiler as claimed in claim 1, wherein: the feed end and the discharge end of the low-temperature superheater inlet header (7) are respectively located at the top and the bottom of the low-temperature superheater outlet header, the feed end and the discharge end of the low-temperature superheater outlet header (10) are respectively located at the bottom and the top of the low-temperature superheater outlet header, the discharge end and the feed end of the desuperheater (5) are respectively located at the top and the bottom of the low-temperature superheater outlet header, the feed end and the discharge end of the high-temperature superheater inlet header (8) are respectively located at the bottom and the top of the high-temperature superheater outlet header, and the feed end and the discharge end of the high-temperature superheater outlet header (.
5. The superheater for double-drum longitudinal water tube boiler as claimed in any one of claims 1-4, wherein: the desuperheater (5), the header A (1) and the header B (2) are all located in a sealing box (12), and heat insulation materials (13) are filled in the sealing box (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735827.5U CN210069828U (en) | 2019-05-21 | 2019-05-21 | Double-drum longitudinal water pipe boiler superheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735827.5U CN210069828U (en) | 2019-05-21 | 2019-05-21 | Double-drum longitudinal water pipe boiler superheater |
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| Publication Number | Publication Date |
|---|---|
| CN210069828U true CN210069828U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920735827.5U Active CN210069828U (en) | 2019-05-21 | 2019-05-21 | Double-drum longitudinal water pipe boiler superheater |
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| CN (1) | CN210069828U (en) |
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