阅读说明：本技术 一种换热器传热管束柔性支撑系统 (Flexible support system for heat transfer tube bundle of heat exchanger ) 是由 李序东 苗中辉 吴保庚 罗垚 于启成 严新容 于 2021-08-27 设计创作，主要内容包括：本发明具体涉及一种换热器传热管束柔性支撑系统,包括多个传热管束柔性支撑单元,每个所述传热管束柔性支撑单元包括上下对称的两个套在传热管束外围侧的支撑条压环,夹在上下对称的两个支撑条压环之间的柔性支撑板条层,接触连接在上下对称的两个支撑条压环的一个支撑条压环的远离另一个支撑条压环的表面上的定距管,以及套接在定距管、上下对称的两个支撑条压环和柔性支撑板条层上的拉杆。本发明的换热器传热管束柔性支撑系统适用于非连续直线型传热管束的支撑,并有利于提高传热管支撑的生产经济性、使用维护方便性,改善换热器内在阻力特性。(The invention particularly relates to a heat exchanger heat transfer tube bundle flexible supporting system which comprises a plurality of heat transfer tube bundle flexible supporting units, wherein each heat transfer tube bundle flexible supporting unit comprises two support bar compression rings which are vertically symmetrical and are sleeved on the peripheral side of a heat transfer tube bundle, a flexible supporting plate strip layer which is clamped between the two support bar compression rings which are vertically symmetrical, a distance tube which is in contact connection with the surface, far away from the other support bar compression ring, of one support bar compression ring of the two support bar compression rings which are vertically symmetrical, and a pull rod which is sleeved on the distance tube, the two support bar compression rings which are vertically symmetrical and the flexible supporting plate strip layer. The heat exchanger heat transfer tube bundle flexible support system is suitable for supporting the discontinuous linear heat transfer tube bundle, is beneficial to improving the production economy and the use and maintenance convenience of the heat transfer tube support, and improves the internal resistance characteristic of the heat exchanger.)

1. The utility model provides a heat exchanger heat transfer tube bundles flexible braced system, its characterized in that, includes a plurality of heat transfer tube bundles flexible support unit, every heat transfer tube bundles flexible support unit includes two covers of longitudinal symmetry and overlaps support bar clamping ring (2) of heat transfer tube bundles peripheral side, presss from both sides the flexible backup pad strip layer between two support bar clamping rings (2) of longitudinal symmetry, and the contact is connected at distance tube (3) on the surface of keeping away from another support bar clamping ring (2) of a support bar clamping ring (2) of two support bar clamping rings (2) of longitudinal symmetry to and cup joint pull rod (4) on distance tube (3), two support bar clamping rings (2) of longitudinal symmetry and flexible backup pad strip layer.

2. The heat exchanger heat transfer tube bundle flexible supporting system according to claim 1, wherein first tie rod holes (103) matched with tie rods (4) are uniformly formed in the flexible supporting strip layers in the circumferential direction, second tie rod holes (202) matched with tie rods (4) are formed in positions, which are symmetrical up and down, of the two supporting strip pressing rings (2) which are symmetrical up and down and the first tie rod holes (103) respectively, and the tie rods (4) are respectively sleeved with the first tie rod holes (103) and the second tie rod holes (202).

3. The heat exchanger heat transfer tube bundle flexible support system according to claim 2, wherein support protrusions (203) are uniformly arranged on the inner side of one support bar compression ring (2) of the two support bar compression rings (2) which are symmetrical up and down and far away from the other support bar compression ring (2), each support protrusion (203) defines one second pull rod hole (202), each second pull rod hole (202) is in contact connection with one spacing tube (3) matched with a pull rod (4), the spacing tube (3), the second pull rod hole (202) and the first pull rod hole (103) are concentric, and the pull rod (4) is respectively sleeved with the spacing tube (3), the first pull rod hole (103) and the second pull rod hole (202).

4. The heat exchanger heat transfer tube bundle flexible support system according to claim 1, characterized in that, the flexible support plate strip layer is a mesh structure formed by a plurality of rows of flexible support bars (1) in a staggered manner to form a plurality of meshes, the meshes formed by every two rows of flexible support plate strip layers are used for a row of heat exchanger heat transfer tubes to alternate, each mesh is used for a row of heat exchanger heat transfer tubes to alternate, the appearance of the flexible support plate strip layer is matched with the appearance of the support bar compression rings (2), the upper surface of the flexible support plate strip layer is in contact with the lower surface of one support bar compression ring (2) in two support bar compression rings (2) which are symmetrical up and down, and the lower surface of the flexible support plate strip layer is in contact with the upper surface of the other support bar compression ring (2) in two support bar compression rings (2) which are symmetrical up and down.

5. The heat exchanger heat transfer tube bundle flexible support system according to claim 4, characterized in that the mesh comprises an inner contact projection (101) and an outer support projection (102), the inner contact projection (101) and the outer support projection (102) being connected, the inner contact projection (101) and the outer support projection (102) defining an inscribed circle, the diameter of the inscribed circle matching the outer diameter of the heat exchanger heat transfer tubes.

6. The heat exchanger heat transfer tube bundle flexible support system according to claim 4, wherein in the flexible support strip layer, both ends of each row of the flexible support strips (1) are provided with straight tangent lines (104) formed by linear cutting or punching, the flexible support strips (1) are flexible split structures formed by linear cutting or punching, and the direction of the straight tangent lines (104) is the same as the direction of a certain row of heat exchange tubes.

7. The heat exchanger heat transfer tube bundle flexible support system according to claim 6, characterized in that both ends of the straight tangent (104) are provided with an eccentric bevel (105); in two support bar clamping rings (2) of longitudinal symmetry, every support bar clamping ring (2) go up with the position of centrifugal inclined plane (105) longitudinal symmetry all is equipped with centripetal inclined plane (201), centrifugal inclined plane (105) and centripetal inclined plane (201) phase-match form in close contact.

8. The heat exchanger heat transfer tube bundle flexible support system according to claim 1, wherein both ends of the pull rod (4) are provided with threads, one end of the pull rod (4) is in threaded connection with a heat exchange tube end socket or a tube plate, and the other end of the pull rod (4) is in threaded nut screwing.

9. A method for flexibly supporting a heat exchanger heat transfer tube bundle with two bent ends, which is characterized in that the heat exchanger heat transfer tube bundle flexible supporting system of any one of claims 1-8 is used, and comprises the following steps:

clamping a first row of flexible supporting plate strip layers between two supporting strip compression rings (2) which are symmetrical up and down, fixing the first row of flexible supporting plate strip layers and the two supporting strip compression rings (2) which are symmetrical up and down by using corresponding distance tubes (3) and pull rods (4), and then inserting a first row of heat exchanger heat transfer tubes on the first row of flexible supporting plate strip layers;

according to the steps, before a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers, the next row of flexible support plate strip layers are assembled next to the previous row of flexible support plate strip layers in advance in sequence, the next row of flexible support plate strip layers and two support bar compression rings (2) which are symmetrical up and down are fixed by corresponding distance tubes (3) and pull rods (4), and then a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers; and a row of heat exchanger heat transfer tubes are inserted into all the flexible supporting plate strip layers.

10. A heat exchanger heat transfer tube bundle flexible supporting method without bending at two ends is characterized by comprising the following steps: the flexible support system of the heat exchanger heat transfer tube bundle of any one of claims 1 to 8 is preassembled and affixed and then inserted through the heat exchange tubes.

Technical Field

The invention relates to the technical field of heat exchanger heat transfer tube bundle support, in particular to a flexible support system for a heat exchanger heat transfer tube bundle.

Background

At present, the heat transfer pipe of the heat exchanger is supported by adopting an integral support plate structure: the heat transfer pipe is characterized in that densely arranged pipe holes are machined in a metal plate which is similar to the heat transfer pipe in material performance, the pipe holes are circular, polygonal or specially designed and shaped, the number of support plates is set according to the length of the heat transfer pipe of the heat exchanger, the thickness of the support plates is set according to the diameter of the heat exchanger, the heat transfer pipe sequentially penetrates through the pipe holes of each support plate during use, the rigidity of the heat transfer pipe is increased by the support plates during operation of the heat exchanger, vibration of the heat transfer pipe caused by large fluid flow rate is resisted, and therefore the heat transfer pipe is supported.

The integral supporting plate structure of the heat transfer pipe of the existing heat exchanger has the following defects: 1, processing pipe holes on a whole metal plate, which has high requirements on raw materials and poor economy; 2, the whole metal plate has large mass, which is not beneficial to the light weight of the equipment; 3, the contact area of the tube and the support plate is large, the exposed area of the main surface of the support plate is large, and when the cleanliness of the fluid in the heat exchanger is not good, dirt is easily deposited on the contact surface of the tube and the support plate and the main surface of the support plate; 4, the support function is considered, the diameter of the pipe hole of the support plate cannot be obviously larger than the outer diameter of the heat transfer pipe, the gap between the pipe hole and the heat transfer pipe is small, the fluid flow area is small, the flow channel resistance is large, and the kinetic energy loss of the working medium is large; 5 the non-continuous straight heat transfer pipe or the heat transfer pipe with the local bent section can not pass through the support plate, so the integral metal plate structure can only be used for supporting the heat transfer pipe without the bent section.

Disclosure of Invention

Based on this, it is necessary to provide a heat exchanger heat transfer tube bundle flexible support system aiming at the above problems of the integral support plate structure of the heat transfer tube of the existing heat exchanger, and the heat exchanger heat transfer tube bundle flexible support system is suitable for supporting the discontinuous linear heat transfer tube bundle, is favorable for improving the production economy and the use and maintenance convenience of the heat transfer tube support, and improves the inherent resistance characteristic of the heat exchanger.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a heat exchanger heat transfer tube bundles flexible braced system, includes a plurality of heat transfer tube bundles flexible support unit, every heat transfer tube bundles flexible support unit includes two covers of longitudinal symmetry and overlaps the support bar clamping ring of heat transfer tube bundles peripheral side, presss from both sides the flexible backup pad strip layer between two support bar clamping rings of longitudinal symmetry, and the contact is connected and is kept away from the distance pipe on the surface of another support bar clamping ring at a support bar clamping ring of two support bar clamping rings of longitudinal symmetry to and cup joint the pull rod on distance pipe, two support bar clamping rings of longitudinal symmetry and flexible backup pad strip layer.

Further, flexible backup pad strip layer circumference evenly is equipped with the first pull rod hole that matches with the pull rod, on two support bar clamping rings of longitudinal symmetry with the position of first pull rod hole longitudinal symmetry all is equipped with the second pull rod hole that matches with the pull rod, the pull rod cup joints with first pull rod hole and second pull rod hole respectively, realizes the fixed of two support bar clamping rings of flexible backup pad strip layer and longitudinal symmetry.

Further, the inboard circumference of keeping away from another support bar clamping ring of two support bar clamping rings of longitudinal symmetry evenly is equipped with the support arch, every support arch and inject a second draw rod hole, every a distance pipe that matches with the pull rod is connected in the contact of second draw rod hole, distance pipe, second draw rod hole, first draw rod hole concentric line, the pull rod cup joints with distance pipe, first draw rod hole and second draw rod hole respectively.

Furthermore, the outer diameter of the pull rod is 0.2-0.5 mm smaller than the inner diameter of the distance tube.

Further, the support protrusion outer radius r is not less than 1/2 of the spacer outer diameter; support bar clamping ring inner diameter D₂₂Not less than the diameter of the circumscribed circle of the outer wall of the edge heat transfer pipe.

Further, the diameter d of the first pull rod hole₁₁Diameter d of the second pull rod hole₂₁The diameter of the pull rod is 0.2-0.5 mm larger than that of the pull rod.

Further, flexible backup pad strip layer is the network structure by the crisscross a plurality of meshs that form of multirow flexible support bar, and the mesh that every two rows of flexible backup pad strip layers formed supplies one row of heat exchanger heat-transfer pipe to alternate, and every mesh supplies a heat exchanger heat-transfer pipe to alternate, the appearance on flexible backup pad strip layer and the appearance phase-match of support bar clamping ring, the upper surface on flexible backup pad strip layer and the lower surface contact of a support bar clamping ring in two support bar clamping rings of longitudinal symmetry are connected, the lower surface on flexible backup pad strip layer and the upper surface contact of another support bar clamping ring in two support bar clamping rings of longitudinal symmetry are connected.

Furthermore, the meshes comprise contact inner protrusions and support outer protrusions, the contact inner protrusions are connected with the support outer protrusions, the contact inner protrusions and the support outer protrusions define an inscribed circle, and the diameter of the inscribed circle is matched with the outer diameter of the heat transfer pipe of the heat exchanger.

Further, in the flexible support plate strip layer, every row the straight tangent line that forms with wire-electrode cutting or punching press all is equipped with at the both ends of flexible support bar, flexible support bar is the flexible components of a whole that can function independently structure that wire-electrode cutting or punching press formed, and straight tangential direction is the same with a certain row of direction of heat exchange tube.

Further, both ends of the straight tangent line are provided with centrifugal inclined planes; in two support bar clamping rings of longitudinal symmetry, every on the support bar clamping ring with the position of centrifugal inclined plane longitudinal symmetry all is equipped with the inclined plane of entad, centrifugal inclined plane and entad inclined plane phase-match form in close contact to guarantee that flexible support bar can be compressed tightly, do not scatter by two support bar clamping rings of longitudinal symmetry.

Further, the angle A of the centrifugal bevel is the same as the angle B of the centripetal bevel, and the angles A and B are both 5-30 degrees; the width L of the centripetal slope₂Greater than or equal to the width L of the centrifugal bevel₁And are not less than 5 mm.

Further, the outer diameter D of the flexible support batten layer₁With the outside diameter D of the supporting bar press ring₂₁The same; height H of support bar compression ring₂Greater than or equal to the height H of the flexible supporting lath layer₁。

Further, the thickness H of the flexible support batten layer is not less than 2mm relative to the interval of the heat transfer pipes, and the height H of the flexible support batten layer₁The diameter of the inscribed circle d formed by the support bulges on two adjacent rows of flexible support plate strip layers is not less than 2h relative to the diameter of the heat exchanger₁₂Is in line with the heat transfer pipeThe relationship of the diameter d is: d₁₂＝(d+0.2)～(d+0.5mm)。

Furthermore, the pull rod is sleeved in the first pull rod hole and the second pull rod hole and extends to the outside of the two support bar pressing rings which are symmetrical up and down.

Further, the pull rod both ends are equipped with the screw thread, pull rod one end threaded connection is on heat exchange tube head or tube sheet, pull rod other end screw nut is rotatory to be screwed up to the distance pipe of extrusion cover at the pull rod surface, thereby two support bar clamping rings of extrusion longitudinal symmetry, thereby compress tightly flexible backup pad strip layer.

Furthermore, in the heat exchanger heat transfer tube bundle flexible support system, the number of the heat transfer tube bundle flexible support units is matched with the length of the heat transfer tubes of the heat exchanger.

Further, in the heat transfer tube bundle flexible supporting unit, the height of the flexible supporting plate strip layer, the height of the distance tube and the length of the pull rod are related to the length of a heat transfer tube of the heat exchanger, and the outer diameter of the flexible supporting plate strip layer and the outer diameter of the supporting strip compression ring are related to the length of the heat transfer tube of the heat exchanger.

Further, in the flexible supporting strip layer, the row number and the height of the flexible supporting strips are matched with the outer diameter of the heat transfer pipe of the heat exchanger.

A heat exchanger heat transfer tube bundle flexible supporting method with two bent ends is used, and the heat exchanger heat transfer tube bundle flexible supporting system comprises the following steps:

clamping a first row of flexible supporting plate strip layers between two supporting bar compression rings which are symmetrical up and down, fixing the first row of flexible supporting plate strip layers and the two supporting bar compression rings which are symmetrical up and down by using corresponding distance tubes and pull rods, and then inserting a first row of heat exchanger heat transfer tubes on the first row of flexible supporting plate strip layers;

according to the steps, before a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers, the next row of flexible support plate strip layers are assembled next to the previous row of flexible support plate strip layers in advance in sequence, the next row of flexible support plate strip layers and two support bar compression rings which are symmetrical up and down are fixed by corresponding distance tubes and pull rods, and then a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers; and a row of heat exchanger heat transfer tubes are inserted into all the flexible supporting plate strip layers.

A method for flexibly supporting a heat exchanger heat transfer tube bundle without bending two ends uses the heat exchanger heat transfer tube bundle flexible supporting system, and comprises the following steps: the heat exchanger heat transfer tube bundle flexible support system is assembled and fixed in advance, and then the heat exchange tubes are inserted.

The invention has the beneficial technical effects that:

the heat exchanger heat transfer tube bundle flexible support system has the advantages of portability, economy, reliability, strong structural adaptability, small resistance and excellent performance. The flexible supporting strip manufactured by a linear cutting or stamping method has the advantages of light structure, simple and economical material processing and reliable supporting performance for the heat transfer pipe; the centrifugal inclined planes at the edges of the flexible supporting bars and the supporting bar press ring edge centripetal inclined planes at the two sides of the flexible supporting bars are matched with each other, the distance pipe is screwed and extruded through the threads at the two axial ends of the pull rod, the load is transferred, the purpose of fastening the flexible supporting bars is achieved, and the installation is convenient; the flexible supporting bars are of a split structure, can be used like the traditional tube bundle supporting plates, are suitable for supporting a continuous straight tube, and can also be suitable for supporting a heat transfer tube structure with bent sections in the middle or at two ends; the working medium flow channel area formed between the adjacent flexible supporting bars is obviously larger than the flow channel of the pipe hole of the traditional supporting plate, and the reduction of the flow resistance of the working medium is facilitated.

Drawings

FIG. 1 is a schematic structural view of a heat exchanger tube bundle flexible support system of the present invention;

FIG. 2 is a perspective view of a heat exchanger tube bundle flexible support system of the present invention;

FIG. 3 is a cross-sectional view of a heat exchanger tube bundle flexible support system of the present invention;

FIG. 4 is a schematic view of a flexible support strip layer structure;

FIG. 5 is a schematic view of a straight tangent end centrifugal bevel configuration;

FIG. 6 is a schematic view of a single mesh structure;

FIG. 7 is a schematic view of a supporting bar press ring structure;

fig. 8 is a schematic view of the structure of the centripetal slope on the supporting strip pressing ring.

In the figure, 1, a flexible supporting strip; 2. supporting the bar compression ring; 3. a distance tube; 4. a pull rod; 101. contact inner convex; 102. a support ledge; 103. a draw bar hole; 104. straight cutting; 105. centrifuging the inclined plane; 201. a centripetal slope; 202. a draw bar hole; 203. and a support protrusion.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left end", "right end", "above", "below", "outside", "inside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.

The utility model provides a heat exchanger heat transfer tube bundles flexible braced system, includes a plurality of heat transfer tube bundles flexible support unit, every heat transfer tube bundles flexible support unit includes two covers of longitudinal symmetry and overlaps the support bar clamping ring 2 of heat transfer tube bundles peripheral side, presss from both sides the flexible backup pad strip layer between two support bar clamping rings 2 of longitudinal symmetry, and the contact is connected and is kept away from another support bar clamping ring 2's of two support bar clamping rings 2 of longitudinal symmetry distance pipe 3 on the surface to and cup joint the pull rod 4 on distance pipe 3, two support bar clamping rings 2 of longitudinal symmetry and flexible backup pad strip layer.

Further, flexible backup pad strip layer circumference evenly is equipped with the first pull rod hole 103 that matches with pull rod 4, on two support bar clamping rings 2 of longitudinal symmetry with the position of first pull rod hole 103 longitudinal symmetry all is equipped with the second pull rod hole 202 that matches with pull rod 4, pull rod 4 cup joints with first pull rod hole 103 and second pull rod hole 202 respectively, realizes the fixed of two support bar clamping rings 2 of flexible backup pad strip layer and longitudinal symmetry.

Further, the inboard circumference of keeping away from another support bar clamping ring 2 of two support bar clamping rings 2 of longitudinal symmetry evenly is equipped with support arch 203, every support arch 203 and inject a second draw rod hole 202, every second draw rod hole 202 contact is connected a distance tube 3 that matches with pull rod 4, distance tube 3, second draw rod hole 202, first draw rod hole 103 concentric line, pull rod 4 cup joints with distance tube 3, first draw rod hole 103 and second draw rod hole 202 respectively.

Furthermore, the outer diameter of the pull rod 4 is 0.2-0.5 mm smaller than the inner diameter of the distance tube 3.

Further, the outer radius r of the support protrusion 203 is not less than 1/2 of the outer diameter of the distance tube 3; the inner diameter D22 of the supporting strip compression ring 2 is not less than the diameter of the circumscribed circle of the outer wall of the edge heat transfer pipe.

Further, the diameter d of the first pull rod hole 103₁₁Diameter d of the second pull rod hole 202₂₁The diameter of the pull rod is 0.2-0.5 mm larger than that of the pull rod 4.

Further, flexible backup pad strap layer is by the crisscross network structure who forms a plurality of meshs of multirow flexible support bar 1, and the mesh that every two rows of flexible backup pad strap layer formed supplies one row of heat exchanger heat-transfer pipe to alternate, and every meshs supplies a heat exchanger heat-transfer pipe to alternate, the appearance on flexible backup pad strap layer and the appearance phase-match of support bar clamping ring 2, the upper surface on flexible backup pad strap layer and the lower surface contact of a support bar clamping ring 2 in two support bar clamping rings 2 of longitudinal symmetry are connected, the lower surface on flexible backup pad strap layer and the upper surface contact of another support bar clamping ring 2 in two support bar clamping rings 2 of longitudinal symmetry are connected.

Further, the mesh comprises a contact inner projection 101 and a supporting outer projection 102, the contact inner projection 101 is connected with the supporting outer projection 102, and the contact inner projection 101 and the supporting outer projection 102 define an inscribed circle, and the diameter of the inscribed circle is matched with the outer diameter of the heat transfer pipe of the heat exchanger.

Further, in the flexible support plate strip layer, every row the both ends of flexible support bar 1 all are equipped with the straight tangent line 104 that forms with wire-electrode cutting or punching press, flexible support bar 1 is the flexible components of a whole that can function independently structure that wire-electrode cutting or punching press formed, and straight tangent line 104 direction is the same with a certain row direction of heat exchange tube.

Further, both ends of the straight tangent line 104 are provided with centrifugal slopes 105; in two support bar clamping rings 2 of longitudinal symmetry, every on the support bar clamping ring 2 with the position of centrifugation inclined plane 105 longitudinal symmetry all is equipped with entad inclined plane 201, centrifugation inclined plane 105 and entad inclined plane 201 phase-match and form in close contact to guarantee that flexible support bar 1 can be compressed tightly, do not scatter by two support bar clamping rings 2 of longitudinal symmetry.

Further, the angle A of the centrifugal bevel 105 is the same as the angle B of the centripetal bevel 201, and the angles are both 5-30 degrees; the width L of the centripetal slope 201₂Greater than or equal to the width L of the centrifugal bevel 105₁And are not less than 5 mm.

Further, the outer diameter D of the flexible support batten layer₁With support bar clamping ring 2 external diameter D₂₁The same; height H of support bar press ring 2₂Greater than or equal to the height H of the flexible supporting lath layer₁。

Further, the thickness H of the flexible support batten layer is not less than 2mm relative to the interval of the heat transfer pipes, and the height H of the flexible support batten layer₁The diameter of an inscribed circle formed by the supporting protrusions 203 on two adjacent rows of flexible supporting plate strip layers is not less than 2h related to the diameter of the heat exchanger₁₂The relationship with the heat transfer tube diameter d is: d₁₂＝(d+0.2)～(d+0.5mm)。

Further, the pull rod 4 is sleeved in the first pull rod hole 103 and the second pull rod hole 202 and extends to the outside of the two support bar press rings 2 which are symmetrical up and down.

Further, 4 both ends of pull rod are equipped with the screw thread, 4 one end threaded connection of pull rod is on heat exchange tube head or tube sheet, 4 other end screw nuts of pull rod are rotatory to be screwed up to the distance tube 3 of extrusion cover at 4 surfaces of pull rod, thereby extrude two support bar clamping rings 2 of longitudinal symmetry, thereby compress tightly flexible backup pad strip layer.

Furthermore, in the heat exchanger heat transfer tube bundle flexible support system, the number of the heat transfer tube bundle flexible support units is matched with the length of the heat transfer tubes of the heat exchanger.

Further, in the heat transfer tube bundle flexible supporting unit, the height of the flexible supporting plate strip layer, the height of the distance tubes 3 and the length of the pull rods 4 are related to the length of a heat transfer tube of the heat exchanger, and the outer diameter of the flexible supporting plate strip layer and the outer diameter of the supporting bar compression ring 2 are related to the length of the heat transfer tube of the heat exchanger.

Further, in the flexible supporting strip layer, the row number and the height of the flexible supporting strips 1 are matched with the outer diameter of the heat transfer pipe of the heat exchanger.

A heat exchanger heat transfer tube bundle flexible supporting method with two bent ends is used, and the heat exchanger heat transfer tube bundle flexible supporting system comprises the following steps:

clamping a first row of flexible supporting plate strip layers between two supporting strip compression rings 2 which are symmetrical up and down, fixing the first row of flexible supporting plate strip layers and the two supporting strip compression rings 2 which are symmetrical up and down by using corresponding distance tubes 3 and pull rods 4, and then inserting a first row of heat exchanger heat transfer tubes on the first row of flexible supporting plate strip layers;

according to the steps, before a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers, the next row of flexible support plate strip layers are assembled next to the previous row of flexible support plate strip layers in advance in sequence, the next row of flexible support plate strip layers and two support bar compression rings 2 which are symmetrical up and down are fixed by corresponding distance tubes 3 and pull rods 4, and then a row of heat exchanger heat transfer tubes are inserted on the next row of flexible support plate strip layers; and a row of heat exchanger heat transfer tubes are inserted into all the flexible supporting plate strip layers.

A method for flexibly supporting a heat exchanger heat transfer tube bundle without bending two ends uses the heat exchanger heat transfer tube bundle flexible supporting system, and comprises the following steps: the heat exchanger heat transfer tube bundle flexible support system is assembled and fixed in advance, and then the heat exchange tubes are inserted.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.