CN217654327U - Temperature and pressure reducing spray pipe for large lateral steam inlet condenser - Google Patents
Temperature and pressure reducing spray pipe for large lateral steam inlet condenser Download PDFInfo
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- CN217654327U CN217654327U CN202221959478.3U CN202221959478U CN217654327U CN 217654327 U CN217654327 U CN 217654327U CN 202221959478 U CN202221959478 U CN 202221959478U CN 217654327 U CN217654327 U CN 217654327U
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- 239000007921 spray Substances 0.000 title claims abstract description 45
- 230000009467 reduction Effects 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 10
- 239000000498 cooling water Substances 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model provides a temperature and pressure reduction spray tube for large-scale side direction admission condenser relates to steam transport technical field, and the effect of having solved steam cooling is not good and temperature and pressure reduction device can receive axial thermal energy and then produce the displacement and extrude each other with the condenser throat, leads to the structure of condenser throat and the problem of temperature and pressure reduction device deformation damage. The steam spraying device comprises a first shell, wherein one end of the first shell is connected with a bypass steam pipeline, the other end of the first shell is connected with a second shell, the second shell is connected with a seal head, an annular pipe is sleeved on the first shell and connected with a plurality of spraying assemblies, a plurality of exhaust holes are formed in the first shell and the second shell, a supporting pipe is connected to the seal head, and a supporting sleeve is movably sleeved on the supporting pipe. Set up ring canal and several and spray the subassembly and spray more cooling water, improve the cooling effect of steam, through stay tube and support sleeve relative slip to guarantee that the spray tube does not receive when the displacement because of axial thermal expansion and block.
Description
Technical Field
The utility model relates to a steam transport technical field particularly, relates to a temperature and pressure reduction spray tube that is used for large-scale side direction admission condenser.
Background
The temperature and pressure reducing device is a steam heat energy parameter (pressure and temperature) conversion device and an energy-saving device utilizing waste heat, which are widely applied to heat energy engineering in enterprises of cogeneration, central heating (or steam supply), light industry, electric power, chemical industry, textile and the like in modern industry.
At present, most of the temperature and pressure reducing devices applied to domestic power stations are used when high-temperature and high-pressure steam enters a condenser, and most of the temperature and pressure reducing devices are designed to be two-level or three-level temperature and pressure reducing devices, so that the temperature and pressure reducing devices are small in import, and the amount of bypass steam to be treated is limited. The bypass steam of a large-scale unit generally has larger flow, a temperature and pressure reducing device usually used when the steam enters a condenser cannot meet the working condition of large flow, and most of the bypass steam does not need to be subjected to multistage pressure reduction. To above-mentioned problem, no longer adopt the mode of multistage temperature reduction and pressure reduction among the prior art, but still have some problems, the effect that like steam cooling is not good and temperature reduction and pressure reduction device can receive axial thermal expansion and then produce the displacement and extrude each other with the condenser, lead to the structure of condenser throat and the problem of temperature reduction and pressure reduction device deformation damage.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a temperature and pressure reduction spray tube for large-scale side direction admission condenser sets up ring canal and several and sprays the subassembly and spray more cooling water, improves the cooling effect of steam, through stay tube and support sleeve relative slip to guarantee that the spray tube does not receive when the displacement because of axial thermal expansion and block.
The embodiment of the utility model discloses a realize through following technical scheme:
the utility model provides a temperature and pressure reduction spray tube for large-scale side direction admission condenser, includes the first casing of being connected with bypass steam conduit, the one end that bypass steam conduit was kept away from to first casing is connected with the second casing, the one end that first casing was kept away from to the second casing is connected with the head, the cover is equipped with the ring canal on the first casing, the ring canal is connected with the takeover, the ring canal connection has the several to be located the inside subassembly that sprays of first casing, be provided with a plurality of exhaust hole on first casing and the second casing, be connected with the stay tube that sets up along the axial direction of second casing on the head, the movable sleeve is equipped with support sleeve on the stay tube.
Preferably, the spray assembly is arranged along a circumference of the first housing.
Preferably, the spray assembly comprises a first conduit connected to the loop pipe, the first conduit is connected to an elbow, the elbow is connected to a second conduit parallel to the axis of the first housing, and the second conduit is provided with a nozzle assembly.
Preferably, the nozzle assembly comprises a nozzle holder fixedly connected to the second conduit, the nozzle holder being threadedly connected to the nozzle.
Preferably, a lifting lug is arranged on the first shell.
Preferably, the bottom of the first shell is communicated with a drain pipe, and a hole plate is arranged at a pipe orifice of the drain pipe.
Preferably, the exhaust holes are respectively formed at the bottom and the top of the first casing and the bottom and the top of the second casing.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
set up ring canal and several and spray the subassembly and spray more cooling water in first casing, improve the cooling effect of steam, when the axial thermal expansion takes place for the spray tube, the stay tube can remove to support sleeve's direction, and the spray tube passes through stay tube and support sleeve relative slip to guarantee that the spray tube does not receive when the displacement because of axial thermal expansion and block, effectively avoid the structure of condenser throat and the damage of the mutual extrusion deformation of spray tube.
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 diagram provided in an embodiment of the present invention;
FIG. 2 is a schematic side sectional view of the structure of FIG. 1;
FIG. 3 is a schematic view of a partial cross-sectional structure of the ring tube of FIG. 1;
FIG. 4 is a schematic view of the fit between the nozzle and the throat.
Icon: 1-a first housing; 2-a second housing; 3-sealing the end; 4-supporting a tube; 5-supporting the casing; 6-air exhaust hole; 7-lifting lugs; 8-connecting pipes; 9-access hole; 10-ring pipe; 11-a drain pipe; 12-well plate; 13-a spray assembly; 1301-a first conduit; 1302-a bent pipe; 1303-a second catheter; 1304-a nozzle; 14-a support member.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention, as presented in the figures, 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.
The present invention will be described in detail with reference to fig. 1 to 3.
Examples
The utility model provides a temperature and pressure reduction spray tube for large-scale side direction admission condenser, includes the first casing 1 of being connected with bypass steam conduit, the one end that bypass steam conduit was kept away from to first casing 1 is connected with second casing 2, the one end that first casing 1 was kept away from to second casing 2 is connected with head 3, the cover is equipped with ring canal 10 on the first casing 1, ring canal 10 is connected with takeover 8, ring canal 10 is connected with the several and is located the inside spray assembly 13 of first casing 1, be provided with a plurality of exhaust hole 6 on first casing 1 and the second casing 2, be connected with the stay tube 4 that sets up along the axial direction of second casing 2 on the head 3, the movable sleeve is equipped with support sleeve 5 on stay tube 4. The grommet 10 is fixed to the first housing 1 by means of a support 14.
Supporting sleeve 5 fixed connection supports the spray tube with 4 cooperations of stay tube on the condenser to when axial thermal energy production displacements take place at the spray tube, the spray tube can be to supporting sleeve 5's direction displacement, because 5 movable sleeves of supporting sleeve overlap and establish on stay tube 4, supporting sleeve 5 does not restrict the displacement of spray tube, thereby has avoided the spray tube because by restriction displacement lead to spray tube extrusion condenser throat, makes spray tube and condenser throat take place to warp and damages.
The spray assemblies 13 are arranged along the circumference of the first housing 1. The circumferentially arranged spraying assemblies 13 can uniformly spray cooling water mist, so that the steam can be fully cooled.
The spray assembly 13 comprises a first conduit 1301 connected to the loop 10, the first conduit 1301 being connected to an elbow 1302, the elbow 1302 being connected to a second conduit 1303 parallel to the axis of the first housing 1, the second conduit 1303 having a nozzle assembly 1304 mounted thereon. After the axis of the nozzle assembly 1304 is parallel to the axis of the first casing 1, the cooling water mist sprayed by the nozzle assembly 1304 can be uniformly diffused in the first casing 1, and the cooling effect of the steam is improved.
The nozzle assembly 1304 includes a nozzle holder fixedly connected to the second conduit 1303, and the nozzle holder is screwed with a nozzle. The nozzle is convenient to replace and maintain after the nozzle is in threaded connection with the nozzle seat.
The first shell 1 is provided with a lifting lug 7. Lifting lugs 7 are arranged to facilitate lifting and installation. The number of the lifting lugs 7 is set according to requirements.
The bottom of the first shell 1 is communicated with a drain pipe 11, and a hole plate 12 is arranged at the pipe orifice of the drain pipe 11. The drain pipe 11 can discharge condensed water drops through the orifice plate 12, so that liquefied water is prevented from being accumulated in the shell to influence the functions of temperature reduction and pressure reduction.
The exhaust holes 6 are respectively formed at the bottom and the top of the first casing 1 and the bottom and the top of the second casing 2. The position of arranging of exhaust hole 6 should avoid condenser heat exchange tube, steam turbine low pressure cylinder steam extraction mouth and throat bracing piece to reduce the water droplet of the cooling water that the structure carried by steam and erode, according to the demand in this application, the position setting of exhaust hole 6 is in bottom, top of first casing 1 and bottom, the top of second casing 2. As shown in fig. 4, the circle is a cross-sectional structure of the nozzle, and the trapezoid is a throat structure; FIG. 4 is a side view of the throat, in which two sets of arrows indicate the spraying direction of the steam discharged from the exhaust hole 6, and the area between the two arrows is the spraying area of the steam; the right of throat connects on the condenser, and the left side is connected on the steam turbine, therefore the steam jet direction of spray tube can only set to upper and lower both sides.
Steam contacts the roof and the diapire of throat and can reflect after 6 blowout in exhaust hole, in order to avoid the steam impact of reflection to the condenser, should control the angle of reflection, specifically be: when the distance between the spray pipe and the steam turbine is less than 1.5 m, the reflection angle is controlled to be 15 degrees.
Be provided with access hole 9 on first casing 1, be off-state at ordinary times, conveniently get into first casing 1 interior maintenance and spray subassembly 13.
The working process is as follows: high-temperature and high-pressure steam is introduced into the first shell 1 through a bypass steam pipeline, meanwhile, cooling water is introduced into the circular pipe 10 from the connecting pipe 8, the cooling water sprays water mist into the first shell 1 through the spraying assembly 13, the steam and the cooling water mist are mixed for heat exchange, so that the effect of cooling is achieved, the steam continues to move forwards and is discharged from the exhaust hole 6, and in the moving process of the steam to the exhaust hole 6, a part of the steam is condensed into water, so that the pressure is reduced; because the space in the shell is larger, the pressure in the other part of steam in the larger space is correspondingly reduced, and the decompression operation is finished.
When the axial expansion takes place at the spray tube, the spray tube passes through stay tube 4 and support sleeve 5's cooperation, guarantees the thermal expansion displacement that can be normal of spray tube to guarantee that the structure of spray tube and condenser does not receive the damage.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (7)
1. The utility model provides a temperature and pressure reduction spray tube for large-scale side direction admission condenser, includes first casing (1) of being connected with bypass steam conduit, the one end that bypass steam conduit was kept away from in first casing (1) is connected with second casing (2), the one end that first casing (1) was kept away from in second casing (2) is connected with head (3), its characterized in that, the cover is equipped with ring canal (10) on first casing (1), ring canal (10) are connected with takeover (8), ring canal (10) are connected with several and are located spray assembly (13) of first casing (1) inside, be provided with a plurality of exhaust hole (6) on first casing (1) and second casing (2), be connected with stay tube (4) that set up along the axial direction of second casing (2) on head (3), movable sleeve is equipped with support sleeve (5) on stay tube (4).
2. A de-superheating and de-superheating nozzle for a large side-entry condenser according to claim 1, characterised in that the spraying assembly (13) is arranged along the circumference of the first shell (1).
3. A de-superheating and de-superheating nozzle for a large-scale lateral steam-intake condenser according to claim 1, wherein the spraying assembly (13) comprises a first conduit (1301) connected with a loop pipe (10), the first conduit (1301) is connected with an elbow (1302), the elbow (1302) is connected with a second conduit (1303) parallel to the axis of the first shell (1), and the second conduit (1303) is provided with a nozzle assembly (1304).
4. A de-superheating and de-superheating nozzle for a large lateral steam inlet condenser according to claim 3, wherein the nozzle assembly (1304) comprises a nozzle holder fixedly connected to the second conduit (1303), and the nozzle holder is in threaded connection with a nozzle.
5. The temperature and pressure reducing nozzle for the large-scale side-to-side steam condenser according to claim 1, characterized in that the first housing (1) is provided with a lifting lug (7).
6. The temperature and pressure reducing spray pipe for the large-scale side-facing steam condenser is characterized in that a drain pipe (11) is communicated with the bottom of the first shell (1), and a hole plate (12) is arranged at the opening of the drain pipe (11).
7. The de-superheating and pressure reducing nozzle for the large-scale side-to-side steam-intake condenser according to claim 1, wherein the exhaust holes (6) are respectively arranged at the bottom and the top of the first shell (1) and the bottom and the top of the second shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221959478.3U CN217654327U (en) | 2022-07-26 | 2022-07-26 | Temperature and pressure reducing spray pipe for large lateral steam inlet condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221959478.3U CN217654327U (en) | 2022-07-26 | 2022-07-26 | Temperature and pressure reducing spray pipe for large lateral steam inlet condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217654327U true CN217654327U (en) | 2022-10-25 |
Family
ID=83687946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221959478.3U Active CN217654327U (en) | 2022-07-26 | 2022-07-26 | Temperature and pressure reducing spray pipe for large lateral steam inlet condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217654327U (en) |
-
2022
- 2022-07-26 CN CN202221959478.3U patent/CN217654327U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 402, No. 1 Cuiying Street, Nansha District, Guangzhou City, Guangdong Province 511458, self-made room 056 Patentee after: Guangdong Haien Energy Technology Co.,Ltd. Address before: Room 2201, No. 18, Haizhou Road, Haizhu District, Guangzhou City, Guangdong Province, 510300 (Part: Self-edited 01) (office only) Patentee before: Guangzhou Hain Energy Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |