CN202442617U - Horizontal fixed tube plate type heat exchanger - Google Patents
Horizontal fixed tube plate type heat exchanger Download PDFInfo
- Publication number
- CN202442617U CN202442617U CN 201120572603 CN201120572603U CN202442617U CN 202442617 U CN202442617 U CN 202442617U CN 201120572603 CN201120572603 CN 201120572603 CN 201120572603 U CN201120572603 U CN 201120572603U CN 202442617 U CN202442617 U CN 202442617U
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- tube
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- cylindrical shell
- sheet
- heat exchanger
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Abstract
The utility model relates to a horizontal fixed tube plate type heat exchanger which is used for solving the problems that the flowing velocity of a medium in tubes is reduced and the heat-exchanging efficiency is reduced due to the increase of the diameter of a shell body and the number of the heat-exchanging tubes when a relatively-large heat-exchanging area is required, so as to shorten the length of a heat exchanger and save a floor space. The horizontal fixed tube plate type heat exchanger comprises a tube body (1); one end of the tube body is connected with a left tube plate (2); the other end of the tube body is connected with a right tube plate (3); the left tube plate is connected with a header tube body (4); the header tube body is connected with a left header end enclosure (5); the right tube plate is connected with a right header end enclosure (6); the lower end of the tube body is connected with a drain tank (7); a tube system (8) is mounted at the upper part inside the tube body; a steam scour prevention device (9) and a straight heat-exchanging tube (10) are mounted at the upper part of the tube system; a T-shaped header partition plate (11) is mounted in a left header shell body; and a minus-shaped header partition plate (12) is mounted in a right header shell body. The horizontal fixed tube plate type heat exchanger is applicable to high-capacity and small-flow heat exchangers of a heat supply network.
Description
Technical field:
the utility model relates to a kind of horizontal fixed tube-sheet exchanger as superhuge heat exchangers for district heating.
Background technology:
Mostly
original large-scale heat exchangers for district heating is two tube sides; Major defect: 1) when requiring heat exchange area big; In order to shorten heat exchanger length, to save floor space, have only the increase diameter of the housing, increase heat exchanger tube quantity; Cause velocity of medium reduction in the pipe, heat exchange efficiency reduces; 2) heat exchange area increases, and the equipment metal consumption is big, is unfavorable for the fundamental state policy of energy savings; 3) the shell side aisle spare is less, and the heating steam flow velocity is very fast, causes vibration easily, and service life of equipment is short, and 4) by having a strong impact on stress distribution than the large opening meeting owing to pressure.
Summary of the invention:
The purpose of
the utility model provides and a kind ofly can adapt to low discharge hot net water current, the big temperature rise that relative superhuge heat supply network uses, the operating mode that specific volume is big and satisfy the little requirement of floor space.
Above-mentioned purpose realizes through following technical scheme:
a kind of horizontal fixed tube-sheet exchanger, its composition comprises: cylindrical shell, described cylindrical shell one end connects left tube sheet; The described cylindrical shell other end connects right tube sheet, and described left tube sheet connects the bobbin carriage cylindrical shell, and described bobbin carriage cylindrical shell connects the left pipe box end socket; Described right tube sheet connects the right pipe box end socket; Described cylindrical shell lower end connects drain trap, and described cylindrical shell internal upper part is equipped with piping, and steam checking motion and straight tube heat exchanger tube are equipped with in described piping top; Tee T bobbin carriage dividing plate is housed in the described left pipe box housing, yi word pattern bobbin carriage dividing plate is housed in the described right pipe box housing.
described horizontal fixed tube-sheet exchanger; Described cylindrical shell comprises stack shell; Described stack shell connects short shell ring through expansion joint, and described stack shell top connects the steam inlet pipe, and described stack shell bottom connects steam outlet pipe; Described piping connects gripper shoe, and short shell ring connects described right tube sheet and described left tube sheet.
described horizontal fixed tube-sheet exchanger; Described bobbin carriage cylindrical shell top connects the feed-water inlet pipe; Described bobbin carriage cylindrical shell bottom connects to water outlet pipe; Described left pipe box housing and described right pipe box housing all have inspection manhole, and described right tube sheet connects described right pipe box housing through hubbed flange, and described right tube sheet connects described hubbed flange through screw bolt and nut.
described horizontal fixed tube-sheet exchanger, described tube sheet is connected with the mode of described heat exchanger tube with the welding of expanding, and described heat exchanger tube is arranged with equilateral triangle, and steam is heated feed water from top to bottom.
Beneficial effect:
1. the utility model drain trap collects condensed water and keeps the stable of water level
2. the utility model utilize expansion joint to offset the line expansion difference that piping water side and shell-side temperature difference cause on shell; Guarantee the stable of heat exchanger tube.
The steam checking motion that utilizes of
the utility model wraps up heat exchanger tube, makes that the exchange heat pipe did not cause erosion when heating steam got into piping.
the utility model adopts four flow processs that the heat supply network backwater is heated, and can adapt to relative big volume, the large and small flow heat supply network of static pressure current, big temperature rise, the operating mode that specific volume is big and satisfy the little requirement of floor space.
After
the utility model increased flow process, the feedwater flow velocity was very fast, has reached the higher coefficient of heat transfer, has saved heat exchange area; Can the suit high temperature rise, heating steam pressure is low, flow is big parameter; Reduced device length, saved the factory building land used of power plant, investment reduces greatly; Superior performance, safe and reliable to operation.
the utility model heat exchangers for district heating has designed both sides bobbin carriage internal partition, makes heat exchanger tube evenly be divided into four parts, is beneficial to the stable of velocity in pipes.On the piping housing, expansion joint has been installed, has been beneficial to eliminate because the line expansion difference that the temperature difference causes prevents that heat exchanger tube from pulling and damaging, the major diameter stack shell at expansion joint middle part rationally reduces low pressure and mass flow heating steam flow velocity, prevents heat exchanger tube vibration cracking.
Be welded to connect through bobbin carriage bobbin carriage cylindrical shell and tube sheet between right pipe box of
the utility model and the piping, to reduce leakage point; Be connected with the tube sheet of double as flange through hubbed flange, bolt, nut between left pipe box and the piping; Tube sheet and stainless steel heat exchanger tube welding end surface adopt stainless compound steel plate to process.
Succeeding in developing of the large-scale heat exchangers for district heating of
the utility model four flow processs will make the variation more of heat exchangers for district heating pattern, adapt to multiple heat supply network backwater temperature rise requirement, and the adaptive capacity in place is also had enhancing.Adopt the perforate of ox head formula distributive pipe few, stress distribution is more reasonable, is fit to the particular requirement of this product.
large-scale heat exchangers for district heating of the utility model is in operation; The flow-induced vibration takes place easily heater is damaged, shell adopts and is welded with big stack shell structure between two expansion joints, has both solved the inconsistent problem of thermal expansion between heat exchanger tube and the shell; Make heating steam have big circulation passage again; Fully reduce the heating steam flow velocity, the gripper shoe of arranging suitable interval shortens unbraced length; Guaranteeing that heat exchangers for district heating is in operation can not prolong the service life of large-scale heat exchangers for district heating owing to vibration damage.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is the structural representation of left pipe box dividing plate in the accompanying drawing 1.Be the left pipe box structural representation, described left pipe box inside is provided with T-shaped branch flow process dividing plate, and T-shaped dividing plate one end is provided with two inspection manholes, and the other end is connected with left tube sheet.
accompanying drawing 3 is the structural representation of right pipe box dividing plate sketch in the accompanying drawing 1.Be the right pipe box structural representation, establish in-line branch flow process dividing plate in the said right pipe box.
accompanying drawing 4 is the outside drawing in the accompanying drawing 1.Be the shell mechanism sketch map, said shell right ends is respectively established a little shell ring and is connected with half expansion joint respectively, is welded with big stack shell between two expansion joints, and shell upper is provided with heating steam import base, and outer casing underpart is provided with drain trap.
The specific embodiment:
Embodiment 1:
a kind of horizontal fixed tube-sheet exchanger, its composition comprises: cylindrical shell 1, described cylindrical shell one end connects left tube sheet 2; The described cylindrical shell other end connects right tube sheet 3, and described left tube sheet connects bobbin carriage cylindrical shell 4, and described bobbin carriage cylindrical shell connects left pipe box end socket 5; Described right tube sheet connects right pipe box end socket 6; Described cylindrical shell lower end connects drain trap 7, and described cylindrical shell internal upper part is equipped with piping 8, and steam checking motion 9 and straight tube heat exchanger tube 10 are equipped with in described piping top; Tee T bobbin carriage dividing plate 11 is housed in the described left pipe box housing, yi word pattern bobbin carriage dividing plate 12 is housed in the described right pipe box housing.
Embodiment 2:
Embodiment 3:
Embodiment 4:
Embodiment 5:
The heat-exchange method of
a kind of horizontal fixed tube-sheet exchanger: the heat supply network backwater gets into left pipe box by water feed apparatus, because the pressure reduction spontaneous current is to piping, carries out four times in the tetrameric heat exchanger tube and flows being divided into by the bobbin carriage dividing plate.And superheated steam is contacted with heat exchanger tube by the air intake entering housing on shell side top, from top to bottom flows, and the water of exchange inside heat pipe heats in process of flowing; Superheated steam is condensed in the condensate inflow drain trap simultaneously; Be heated to and require the hot net water of temperature to flow out by discharging device.
Embodiment 6:
The heat-exchange method of
embodiment 5 described horizontal fixed tube-sheet exchangers; In tube side one side, heat supply network feedwater T-shaped dividing plate top 1/2nd spatial flows from feed-water inlet entering left pipe box are gone in four/a part of straight tube heat exchanger tube, get into right pipe box in-line dividing plate left side; Because the in-line dividing plate is arranged to be separated; 1/4 pore flows into another part heat exchanger tube once more through bottom, right pipe box in-line dividing plate left side in feedwater, and the lower end that gets into the T-shaped dividing plate of left pipe box forms baffling, flows into for the third time in other 1/4 straight tube heat exchanger tube; Get into the right pipe box right side, realize four flow processs through right pipe box right upper portion 1/4 heat exchanger tube; At shell-side; Heating steam gets into enclosure interior through the steam connection seat on housing top, skims over heat exchanger tube with rational horizontal and vertical flow velocity, to greatest extent heat is passed to the heat supply network feedwater; Steam all condenses into the drain trap that saturation water flows into lower housing portion; Drain trap is selected suitable water capacity through reasonable computation, satisfies water level control requirement.
Embodiment 7:
The described horizontal fixed tube-sheet exchanger of
the foregoing description; Four flow process tube sides and single process shell side, tube side is made up of left pipe box, piping and right pipe box, establishes T-shaped branch flow process dividing plate in the left pipe box; Inspection manhole is set in the middle of the normal ellipsoidal head of end; The water inlet pipe and water outlet pipe that is connected with the bobbin carriage cylindrical shell of ellipsoidal head welding forms the ox head shape, through heat exchanger tube left tube sheet in the piping and right tube sheet is coupled together, and establishes in-line branch flow process dividing plate in the right pipe box; Be connected with piping with bolt and nut through hubbed flange, interior media implementation four flow processs of pipe are flowed.The single process shell side connects half expansion joint by the bobbin carriage cylindrical shell and connects large-diameter cylinder body again, and cylindrical shell is connected with minor diameter bobbin carriage cylindrical shell through other half expansion joint, and the cylindrical shell bottom is provided with drain trap.
Embodiment 8:
The described horizontal fixed tube-sheet exchanger of
the foregoing description; As shown in Figure 1; It comprises inspection manhole left pipe box, shell, piping, right pipe box and drain trap, and inspection manhole is installed in the middle of the left pipe box end, feed-water inlet pipe and be located at the left pipe box upside to water outlet pipe and be the ox head shape; Make the tube side medium can come and go four flow processs; Left pipe box and the welding of left tube sheet realize with piping between be connected, in piping, be provided with many straight tube heat exchanger tubes and gripper shoe, the right tube sheet that the straight tube heat exchanger tube passes left tube sheet, gripper shoe and double as flange forms complete piping; It is fixing that shell is installed between left tube sheet and the right tube sheet welding, and the right pipe box end is equipped with between the right tube sheet in hubbed flange and the piping and is connected with bolt and nut.
Claims (4)
1. horizontal fixed tube-sheet exchanger, its composition comprises: cylindrical shell is characterized in that: described cylindrical shell one end connects left tube sheet; The described cylindrical shell other end connects right tube sheet, and described left tube sheet connects the bobbin carriage cylindrical shell, and described bobbin carriage cylindrical shell connects the left pipe box end socket; Described right tube sheet connects the right pipe box end socket; Described cylindrical shell lower end connects drain trap, and described cylindrical shell internal upper part is equipped with piping, and steam checking motion and straight tube heat exchanger tube are equipped with in described piping top; Tee T bobbin carriage dividing plate is housed in the described left pipe box housing, yi word pattern bobbin carriage dividing plate is housed in the described right pipe box housing.
2. horizontal fixed tube-sheet exchanger according to claim 1; It is characterized in that: described cylindrical shell comprises stack shell; Described stack shell connects short shell ring through expansion joint, and described stack shell top connects the steam inlet pipe, and described stack shell bottom connects steam outlet pipe; Described piping connects gripper shoe, and short shell ring connects described right tube sheet and described left tube sheet.
3. horizontal fixed tube-sheet exchanger according to claim 1 and 2; It is characterized in that: described bobbin carriage cylindrical shell top connects the feed-water inlet pipe; Described bobbin carriage cylindrical shell bottom connects to water outlet pipe; Described left pipe box housing and described right pipe box housing all have inspection manhole, and described right tube sheet connects described right pipe box end socket through hubbed flange, and described right tube sheet connects described hubbed flange through screw bolt and nut.
4. horizontal fixed tube-sheet exchanger according to claim 1 and 2 is characterized in that: described tube sheet is connected with the mode of described heat exchanger tube with the welding of expanding, and described heat exchanger tube is arranged with equilateral triangle, and steam is heated feed water from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120572603 CN202442617U (en) | 2011-12-31 | 2011-12-31 | Horizontal fixed tube plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120572603 CN202442617U (en) | 2011-12-31 | 2011-12-31 | Horizontal fixed tube plate type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202442617U true CN202442617U (en) | 2012-09-19 |
Family
ID=46824061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120572603 Expired - Lifetime CN202442617U (en) | 2011-12-31 | 2011-12-31 | Horizontal fixed tube plate type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202442617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538516A (en) * | 2011-12-31 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | Horizontal fixed tube sheet type heat exchanging device and method |
| CN103486883A (en) * | 2013-09-13 | 2014-01-01 | 无锡明燕集团有限公司 | Tubular heat exchanger |
| CN110567295A (en) * | 2019-09-06 | 2019-12-13 | 山东舜业压力容器有限公司 | Heating net heater |
-
2011
- 2011-12-31 CN CN 201120572603 patent/CN202442617U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538516A (en) * | 2011-12-31 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | Horizontal fixed tube sheet type heat exchanging device and method |
| CN103486883A (en) * | 2013-09-13 | 2014-01-01 | 无锡明燕集团有限公司 | Tubular heat exchanger |
| CN103486883B (en) * | 2013-09-13 | 2016-05-25 | 无锡明燕集团有限公司 | tubular heat exchanger |
| CN110567295A (en) * | 2019-09-06 | 2019-12-13 | 山东舜业压力容器有限公司 | Heating net heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |