Tube plate structure in corrugated tube heat exchanger

Abstract

The tube plate structure in the corrugated tube heat exchanger comprises a circular tube plate, a plurality of heat exchange connecting holes are formed in the tube plate, positioning holes are formed in the center, the front side and the rear side of the tube plate respectively, a screw is inserted into the positioning holes, and a clamping groove penetrating through the outer walls of the front side and the rear side of the screw is formed in the end face of the right end of the screw. A circular sealing plate is arranged on the left side of the tube plate, a horizontal partition plate is formed in the middle of the right end face of the sealing plate and inserted into a clamping groove of the screw, the left side edge of the partition plate abuts against the bottom face of the clamping groove, the right side edge of the partition plate abuts against the left end face of the tube plate, and the partition plate divides heat exchange connecting holes in the tube plate into an upper set of heat exchange inlet and outlet holes and a lower set of heat exchange inlet and outlet holes with the same number. The right end of the screw extends out of the tube plate and is in threaded connection with a nut, the nut abuts against the right end face of the tube plate in a pressing mode, and the left end of the screw is inserted into the sealing plate. The tube plate and the partition plate are connected through the bolts, installation and connection are convenient, and meanwhile the partition plate is provided with the sealing plate, so that sealing connection with an inner tube box of the heat exchanger is conveniently achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wave tube heat exchanger, more particularly to a tube plate structure in wave tube heat exchanger. BACKGROUND

[0002] Wave tube heat exchanger is a kind of high-efficiency energy-saving heat exchange equipment, by adopting the unique wave tube design, the heat transfer effect is strengthened, and is widely used in petroleum, chemical industry, electric power, heating and other fields.It is the unique tube and shell heat exchanger in our country, the main feature is that the heat exchange tube adopts wave tube, which is specially processed from ordinary seamless thin steel pipe, and the shape is regularly arranged in wave crest and wave trough, because the wave tube is adopted, the turbulence of the medium in and outside the tube is destroyed, and the heat transfer coefficient is improved, and the heat transfer effect is much higher than that of the tube and shell heat exchanger with light tube;Turbulent flow flushing, reduces or avoids fouling, and the water quality requirement can be reduced.The existing wave tube heat exchanger and conventional tube and shell heat exchanger both have heat exchange tubes and tube plates, a plurality of openings are formed on the tube plate for mounting the end of the heat exchange tube, so the openings on the tube plate are divided into two groups, one group is heat exchange inlet hole, and the other group is heat exchange outlet hole, and a partition plate needs to be welded between the heat exchange inlet hole and the heat exchange outlet hole to realize separation, and the partition plate and the tube box sleeved on the partition plate are required to be sealingly connected to realize complete separation;Its structure installation cooperation is more troublesome, so a tube plate structure for convenient installation cooperation needs to be designed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of tube plate structures in wave tube heat exchanger, its tube plate and partition plate are connected by bolt, installation connection is convenient, sealing connection with the tube box in heat exchanger is simultaneously realized by the sealing plate on the partition plate;And its partition plate changes installation position, it is also convenient for the welding operation between heat exchange tube and tube plate.

[0004] A kind of tube plate structure in wave tube heat exchanger, including circular tube plate, a plurality of heat exchange connection holes are formed on the tube plate, the center of tube plate and the front, back two sides are formed with positioning hole respectively, positioning hole is inserted with screw rod, the end face on the right end of screw rod is formed with the clamping groove that penetrates the outer wall of the front, back two sides of screw rod;

[0005] The left side of the tube plate is equipped with circular sealing plate, the middle part of the right end face of sealing plate is formed with horizontal partition plate, the partition plate is inserted in the clamping groove of screw rod, the left side of partition plate abuts on the bottom surface of clamping groove, right side abuts on the left end face of tube plate, and the heat exchange connection hole on the tube plate is divided into upper and lower two groups of the same number of heat exchange inlet and outlet holes by the partition plate;The right end of screw rod is stretched out tube plate and is screwed with nut, and the nut is pressed on the right end face of tube plate, and the left end of screw rod is inserted in the sealing plate.

[0006] Preferably, the center axis of the tube plate and the center axis of the sealing plate coincide, the diameter of the tube plate is larger than the diameter of the sealing plate, and the outer ring of the sealing plate is located outside the heat exchange connecting holes.

[0007] Preferably, the positioning holes on both sides of the tube plate are distributed on both sides of the heat exchange connecting holes, and the front and rear sides of the partition plate are formed in arc shape and tangent to the outer ring of the sealing plate.

[0008] Preferably, the thickness of the partition plate is smaller than the spacing between the heat exchange connecting holes, the sealing plate is formed with a plug hole opposite to the screw rod, and the left end of the screw rod is inserted into the plug hole of the screw rod.

[0009] Preferably, an annular groove is formed on the outer wall of the left end of the screw rod, a sealing sleeve is inserted into the annular groove, and the sealing sleeve is clamped between the sealing plate and the screw rod.

[0010] An annular sealing groove is formed on the outer wall of the sealing plate, and a sealing ring is inserted into the sealing groove.

[0011] Preferably, the outer ring of the tube plate is formed with a plurality of mounting holes, and the mounting holes are uniformly distributed in annular shape around the center axis of the mounting hole.

[0012] Preferably, an avoiding recess is formed on the left end face of the tube plate on the upper and lower sides of the heat exchange connecting hole, a supporting column is inserted into the avoiding recess, and the left end of the supporting column is fixed to the sealing plate.

[0013] The beneficial effects of the present application are as follows:

[0014] The tube plate and the partition plate are connected by bolts, the installation and connection are convenient, the sealing plate is arranged on the partition plate, the sealing connection with the tube box in the heat exchanger is realized conveniently, the installation position of the partition plate is changed, and the welding operation between the heat exchange pipe and the tube plate is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional position schematic view of the present application;

[0016] Figure 2 It is another angle of the three-dimensional structure schematic view of the present application;

[0017] Figure 3 It is a structure schematic view of the present application from the side;

[0018] Figure 4 It is another state of the three-dimensional structure schematic view of the present application

[0019] Figure 5 It is another state of the front view structure schematic view of the present application.

[0020] In the figure: 1, tube plate; 11, heat exchange connecting hole; 12, positioning hole; 13, mounting hole; 14, avoiding concave hole; 2, sealing plate; 21, partition plate; 22, insertion hole; 23, sealing groove; 3, screw rod; 31, clamping groove; 32, annular groove; 4, nut; 5, sealing ring; 6, support column. DETAILED DESCRIPTION

[0021] Embodiment: see Figures 1 to 3 As shown in the figure, a tube plate structure in a wave tube heat exchanger, comprising a circular tube plate 1, a plurality of heat exchange connecting holes 11 are formed on the tube plate 1, a positioning hole 12 is formed at the center and the front and rear sides of the tube plate 1 respectively, a screw rod 3 is inserted into the positioning hole 12, a clamping groove 31 is formed on the end face of the right end of the screw rod 3, which penetrates the outer wall of the front and rear sides of the screw rod 3;

[0022] A circular sealing plate 2 is arranged on the left side of the tube plate 1, a horizontal partition plate 21 is formed on the middle of the right end face of the sealing plate 2, the partition plate 21 is inserted into the clamping groove 31 of the screw rod 3, the left side edge of the partition plate 21 abuts against the bottom face of the clamping groove 31, and the right side edge abuts against the left end face of the tube plate 1, the partition plate 21 divides the heat exchange connecting holes 11 on the tube plate 1 into two groups of the same number of heat exchange inlet and outlet holes; the right end of the screw rod 3 extends out of the tube plate 1 and is screwed with a nut 4, the nut 4 is pressed against the right end face of the tube plate 1, and the left end of the screw rod 3 is inserted into the sealing plate 2.

[0023] The central axis of the tube plate 1 and the central axis of the sealing plate 2 coincide, the diameter of the tube plate 1 is larger than the diameter of the sealing plate 2, and the outer circle of the sealing plate 2 is located outside the heat exchange connecting holes 11.

[0024] The positioning holes 12 on both sides of the tube plate 1 are distributed on both sides of the heat exchange connecting holes 11, the front and rear side edges of the partition plate 21 are formed in a circular arc shape and are tangent to the outer circle of the sealing plate 2, so that when the sealing plate 2 is initially inserted into the tube box of the cylindrical structure, the sealing plate 2, the partition plate 21, the tube plate 1 and the tube box can be arranged to form two upper and lower chambers.

[0025] The thickness of the partition plate 21 is smaller than the spacing between the heat exchange connecting holes 11, an insertion hole 22 opposite to the screw rod 3 is formed on the sealing plate 2, the left end of the screw rod 3 is inserted into the insertion hole 22 of the screw rod 3, and the insertion hole 22 positions the partition plate 21.

[0026] An annular groove 32 is formed on the outer wall of the left end of the screw rod 3 (as shown in the figure), a sealing sleeve is inserted into the annular groove 32, and the sealing sleeve is clamped between the sealing plate 2 and the screw rod 3. Figure 5 An annular sealing groove 23 is formed on the outer wall of the sealing plate 2, a sealing ring 5 is inserted into the sealing groove 23, and the sealing sleeve and the sealing groove 23 are used to improve the sealing effect.

[0027]

[0028] ​The outer ring of the tube plate 1 is formed with a plurality of mounting holes 13 which are uniformly distributed in a ring shape around the center axis of the mounting hole 13, and the mounting hole 13 is used for mounting connection between the tube box and the heat exchanger shell.

[0029] The left end face of the tube plate 1 on the upper and lower sides of the heat exchange connecting hole 11 is formed with a relief recess 14, and the support column 6 is inserted and connected in the relief recess 14, and the left end of the support column 6 is fixed to the sealing plate 2, and the support column 6 is provided for the change of the tube plate structure;

[0030] As shown in Figure 4 , 5 After the sealing plate 2 is installed on the tube plate 1 after reversing left and right, the whole tube plate structure is turned over, the support column 6 and most of the screw rod 3 are located below the sealing plate 2, the sealing plate 2 abuts against the tube plate 1 and covers the tube plate 1, the tube plate structure becomes a support seat used for welding, the both ends of the wave tube of the heat exchanger are respectively inserted into the two groups of heat exchange inlet and outlet holes of the sealing plate 2 and are blocked by the sealing plate 2, then the wave tube and the tube plate 1 are welded and fixed together by spraying brazing agent and by brazing.

[0031] Working principle: the structure is the tube plate structure in the wave tube heat exchanger, the tube plate 1 is provided with a positioning hole for mounting the screw rod 3, the screw rod 3 is provided with a clamping groove 31, the baffle 21 can be installed, the position of the baffle 21 is positioned based on the screw rod 3 and the insertion hole 22 on the sealing plate 2, and the baffle 21 is fixed to the tube plate 1 based on the screw rod 3 and the nut 4;

[0032] Meanwhile, the baffle 21 and the sealing plate 2 cooperate to divide the tube box sleeved on the baffle 21 into two chambers, and the cooperation and connection with the tube box are convenient;

[0033] In addition, after the sealing plate 2 is installed after reversing, the end part of the heat exchange tube inserted into the tube plate 1 can be blocked, and the sealing plate 2 is used in cooperation with the screw rod 3 as a supporting base, which is convenient for brazing operation of the tube plate 1 and the heat exchange tube.

[0034] The embodiments are used to illustrate the present application, but not to limit the present application. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present application, and therefore the protection scope of the present application should be as listed in the claims of the present application.

Claims

1. A tube sheet structure in a wave tube heat exchanger, comprising a circular tube sheet (1) on which a plurality of heat exchange connection holes (11) are formed, characterized in that: The center of the tube plate (1) and the front and rear sides are respectively formed with positioning holes (12), the positioning holes (12) are inserted with screw rods (3), the end face of the right end of the screw rod (3) is formed with a clamping groove (31) penetrating the front and rear sides of the outer wall of the screw rod (3); The left side of the tube plate (1) is provided with a circular sealing plate (2), the middle part of the right end face of the sealing plate (2) is formed with a horizontal partition plate (21), the partition plate (21) is inserted in the clamping groove (31) of the screw rod (3), the left side edge of the partition plate (21) abuts against the bottom face of the clamping groove (31), and the right side edge abuts against the left end face of the tube plate (1), the partition plate (21) divides the heat exchange connection holes (11) on the tube plate (1) into two groups of the same number of heat exchange inlet and outlet holes; the right end of the screw rod (3) extends out of the tube plate (1) and is screwed with a nut (4), the nut (4) is pressed against the right end face of the tube plate (1), and the left end of the screw rod (3) is inserted on the sealing plate (2).

2. A tube plate structure in a wave tube heat exchanger according to claim 1, characterized in that: The central axis of the tube plate (1) coincides with the central axis of the sealing plate (2), the diameter of the tube plate (1) is greater than the diameter of the sealing plate (2), and the outer circle of the sealing plate (2) is located outside the heat exchange connection holes (11).

3. A tube plate structure in a wave tube heat exchanger according to claim 2, characterized in that: The positioning holes (12) on both sides of the tube plate (1) are distributed on both sides of the heat exchange connection holes (11), and the front and rear side edges of the partition plate (21) are formed in arc shape and tangent to the outer circle of the sealing plate (2).

4. A tube plate structure in a wave tube heat exchanger according to claim 1, characterized in that: The thickness of the partition plate (21) is less than the spacing between the heat exchange connection holes (11), and the sealing plate (2) is formed with a plug hole (22) opposite to the screw rod (3), and the left end of the screw rod (3) is inserted in the plug hole (22) of the screw rod (3).

5. A tube plate structure in a wave-surge tube heat exchanger according to claim 4, characterized in that: The outer wall of the left end of the screw rod (3) is formed with an annular groove (32), a sealing sleeve is inserted in the annular groove (32), and the sealing sleeve is clamped between the sealing plate (2) and the screw rod (3); The outer wall of the sealing plate (2) is formed with an annular sealing groove (23), and a sealing ring (5) is inserted in the sealing groove (23).

6. A tube plate structure in a wave tube heat exchanger according to claim 1, characterized in that: The outer circle of the tube plate (1) is formed with a plurality of mounting holes (13), and the mounting holes (13) are uniformly distributed in a ring shape around the central axis of the mounting hole (13).

7. A tube plate structure in a wave tube heat exchanger according to claim 1, characterized in that: The left end face of the tube plate (1) on the upper and lower sides of the heat exchange connection hole (11) is formed with an avoiding concave hole (14), a supporting column (6) is inserted in the avoiding concave hole (14), and the left end of the supporting column (6) is fixed to the sealing plate (2).

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