Plate type gas-gas heat exchanger convenient to assemble

Abstract

The utility model relates to a plate type gas-gas heat exchanger convenient to assemble, and belongs to the technical field of plate type gas-gas heat exchangers. Comprising a heat exchange plate set and two side plates, the two side plates are symmetrically installed on the left side and the right side of the heat exchange plate set correspondingly, and longitudinal movable grooves are formed in the lower ends of the side walls of the two side plates in a penetrating mode. By means of the supporting frame, the limiting frame and the fixing frame, heat exchange plate sets of different sizes can be effectively clamped and fixed, and applicability and flexibility of the heat exchange plate sets are enhanced. The relative height between the supporting frame and the fixing frame is adjusted through the first adjusting piece, and therefore clamping of the upper side and the lower side of the heat exchange plate sets with different heights is achieved. The relative distance between the first fixing frames located on the front side and the rear side and the relative distance between the first supporting rods located on the front side and the rear side are adjusted through the two second adjusting pieces correspondingly, and therefore the front sides and the rear sides of the heat exchange plate sets with different widths are clamped. The left side and the right side of the heat exchange plate sets with different thicknesses can be clamped by fastening the fixing nuts, and the adjusting and clamping processes are simple, convenient and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of plate gas-gas heat exchangers, in particular to a plate gas-gas heat exchanger convenient for assembly. Background Technique

[0002] The gas-gas heat exchanger is an important part of the fine desulfurization system. Its main function is to recover the heat in the waste gas and transfer it to the cooling gas, thereby improving the thermal efficiency of the system.

[0003] After retrieval, the utility model patent with the publication number CN217541592U discloses a plate gas-gas heat exchanger convenient for assembly. In this scheme, two insertion rods are respectively movably inserted into the interiors of two loop frames, and then four first bolts are respectively rotated through four through holes and are respectively threadedly inserted into the interiors of four threaded holes, so that the two insertion rods can be respectively fixed inside the two loop frames, and then the two fixing rods and the two loop frames are fixed, and further the first side plate, the second side plate and the heat exchange plate group are assembled together.

[0004] However, this scheme can only be used to assemble plate gas-gas heat exchangers with specific sizes and cannot perform spatial adjustment according to the size of the actual heat exchange plate group, which limits its applicability and flexibility. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a plate gas-gas heat exchanger convenient for assembly.

[0006] The technical scheme of the utility model is as follows:

[0007] A plate gas-gas heat exchanger convenient for assembly, including a heat exchange plate group and two groups of side plates. The two groups of side plates are respectively symmetrically installed on the left and right sides of the heat exchange plate group. Longitudinal moving grooves are respectively formed through the lower ends of the side walls of the two groups of side plates, two groups of transverse moving grooves are respectively formed through the middle of the side walls of the two groups of side plates, mounting grooves are formed on the upper surfaces of the two groups of side plates, inserting grooves are formed on the lower surfaces of the mounting grooves, bases are fixedly connected to the lower surfaces of the two groups of side plates, a support frame is connected to the lower ends of the inner sides of the two groups of side plates and below the heat exchange plate group, a limiting frame is connected to the middle of the inner sides of the two groups of side plates and on the front and rear sides of the heat exchange plate group, and a fixing frame is connected to the upper ends of the inner sides of the two groups of side plates and above the heat exchange plate group;

[0008] The support frame includes two sets of first movable blocks, multiple sets of first fixed frames, and multiple sets of first support rods. The two sets of first movable blocks are respectively slidably connected to the inside of the longitudinal movable grooves on the corresponding sides. On the sides of the two sets of first movable blocks close to the heat exchange plate group, connecting plates one are fixedly connected. Multiple sets of first fixed frames are equidistantly fixedly connected to the right side wall of the connecting plate one on the left side. Multiple sets of first support rods are equidistantly fixedly connected to the left side wall of the connecting plate one on the right side. The multiple sets of first support rods are respectively slidably inserted into the corresponding first fixed frames. On the side of the first movable block away from the connecting plate one, an adjusting member one for adjusting the height of the first movable block is connected;

[0009] The limiting frame includes four sets of second movable blocks, four sets of second fixed frames, and four sets of second support rods. The four sets of second movable blocks are respectively arranged in pairs on the left and right sides of the heat exchange plate group. The four sets of second movable blocks are respectively slidably connected to the inside of the transverse movable grooves at the corresponding positions. On the sides of the four sets of second movable blocks close to the heat exchange plate group, connecting plates two are fixedly connected. Four sets of first fixed frames are respectively fixedly connected in pairs to the right side walls of the two connecting plates two on the left side. Between the two sets of first fixed frames on the same side, a central block is fixedly connected through a connecting block. The central block is transversely provided with a through hole. Four sets of second support rods are respectively fixedly connected in pairs to the left side walls of the two connecting plates two on the right side. The four sets of second support rods are respectively slidably inserted into the corresponding second fixed frames. On the left side walls of the two connecting plates two on the right side, fixed threaded rods are fixedly connected, and the fixed threaded rods are located between the two sets of second support rods on the same side. The left end of the fixed threaded rod passes through the through hole and is threadedly sleeved with a fixed nut. The right side of the fixed nut abuts against the left side of the central block. On the sides of the two sets of second movable blocks on the same side away from the connecting plate two, an adjusting member two for adjusting the distance between the two sets of second movable blocks on the same side is connected;

[0010] The fixed frame includes two sets of insertion blocks, multiple sets of third fixed frames, and multiple sets of third support rods. The two sets of insertion blocks are respectively movably inserted into the corresponding slots and fixed by fixing members. On the sides of the two sets of insertion blocks close to the heat exchange plate group, connecting plates three are fixedly connected. Multiple sets of third fixed frames are equidistantly fixedly connected to the right side wall of the connecting plate three on the left side. Multiple sets of third support rods are equidistantly fixedly connected to the left side wall of the connecting plate three on the right side. The multiple sets of third support rods are respectively slidably inserted into the corresponding third fixed frames.

[0011] Optionally, the first adjusting member includes an adjusting bolt rod. A first fixing seat is fixedly connected to the side of the side plate away from the heat exchange plate group and below the longitudinal moving groove. The adjusting bolt rod is rotatably connected to the upper surface of the first fixing seat. A first supporting seat is fixedly connected to the side of the side plate away from the heat exchange plate group and above the longitudinal moving groove. A first moving hole is formed through the surface of the first supporting seat. The adjusting bolt rod is rotatably connected to the inside of the first moving hole. A first nut seat is sleeved on the outer side of the adjusting bolt rod and inside the first fixing seat and the first supporting seat. The first nut seat is fixed to the first moving block.

[0012] Optionally, a first locking nut is sleeved on the outer side of the adjusting bolt rod and above the first supporting seat. The first locking nut abuts against the upper surface of the first supporting seat.

[0013] Optionally, the second adjusting member includes a double-threaded screw rod. Second fixing seats are fixedly connected to the front and rear sides of the two same-side transverse moving grooves on the side of the side plate away from the heat exchange plate group. The double-threaded screw rod is rotatably connected to the inside of the two second fixing seats. Two second nut seats are sleeved on the outer side of the double-threaded screw rod. The two second nut seats are respectively fixed to the corresponding second moving blocks.

[0014] Optionally, a knob is fixedly connected to the middle position on the outer side of the double-threaded screw rod.

[0015] Optionally, second supporting seats are rotatably connected to the front and rear sides of the knob on the outer side of the double-threaded screw rod. The second supporting seats are fixed to the side plate. A second locking nut is sleeved on the outer side of the double-threaded screw rod between the second supporting seat and the knob. The second locking nut abuts against the side wall of the second supporting seat close to the knob.

[0016] Optionally, the fixing member includes a locking seat. The locking seat is fixedly connected to the upper surface of the insertion block. The locking seat is movably inserted into the installation groove and fixed by bolts.

[0017] All the above optional technical solutions can be arbitrarily combined. The present utility model does not elaborate on the structures after combination one by one.

[0018] By means of the above solution, the beneficial effects of the present utility model are as follows:

[0019] 1. By providing a support frame, a limit frame and a fixing frame, the present utility model can effectively clamp and fix heat exchange plate groups of different sizes, enhancing its applicability and flexibility.

[0020] 2. The relative height between the support frame and the fixed frame can be adjusted by the first adjusting member, so as to realize the clamping of the upper and lower sides of heat exchange plate groups with different heights. The relative distances between the front and rear fixed frames 1 and between the front and rear support rods 1 are respectively adjusted by two groups of the second adjusting members, so as to realize the clamping of the front and rear sides of heat exchange plate groups with different widths. By tightening the fixing nuts, the clamping of the left and right sides of heat exchange plate groups with different thicknesses can be realized, and the adjustment and clamping processes are simple and labor-saving.

[0021] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall external structure of the plate-type gas-gas heat exchanger provided by the present utility model that is convenient for assembly;

[0023] Figure 2 It is a front view of the plate-type gas-gas heat exchanger provided by the present utility model that is convenient for assembly;

[0024] Figure 3 It is a right view of the plate-type gas-gas heat exchanger provided by the present utility model that is convenient for assembly;

[0025] Figure 4 It is a top view of the plate-type gas-gas heat exchanger provided by the present utility model that is convenient for assembly;

[0026] Figure 5 It is a schematic diagram of the structure in which the side plate, the base, the support frame, the limit frame and the fixed frame in the present utility model cooperate;

[0027] Figure 6 For Figure 5 exploded structure schematic diagram;

[0028] Figure 7 It is an exploded structure schematic diagram of the side plate and its connecting components on the left side in the present utility model;

[0029] Figure 8 It is an exploded structure schematic diagram of the side plate and its connecting components on the right side in the present utility model;

[0030] Figure 9 It is an exploded structure schematic diagram of the side plate, the adjusting bolt rod and the double-threaded rod in the present utility model.

[0031] Reference numerals in the figure: 1, heat exchange plate group; 2, side plates; 21, longitudinal movable grooves; 22, transverse movable grooves; 23, mounting grooves; 231, insertion slots; 3, base; 4, support frame; 41, first movable block; 411, first connecting plate; 42, first fixed frame; 43, first support rod; 44, first adjusting member; 441, first fixed seat; 442, first support seat; 4421, first movable hole; 443, adjusting bolt rod; 4431, first nut seat; 444, first locking nut; 5, limiting frame; 51, second movable block; 511, second connecting plate; 52, second fixed frame; 521, central block; 5211, through hole; 53, second support rod; 531, fixed threaded rod; 532, fixed nut; 54, second adjusting member; 541, second fixed seat; 542, double-threaded rod; 5421, knob; 543, second nut seat; 544, second support seat; 545, second locking nut; 6, fixing frame; 61, insertion block; 611, third connecting plate; 62, third fixed frame; 63, third support rod; 64, locking seat. Detailed implementation manners

[0032] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0033] Please refer to Figures 1-9 , the present utility model provides a plate-type gas-gas heat exchanger that is convenient for assembly, including a heat exchange plate group 1 and two groups of side plates 2. The two groups of side plates 2 are symmetrically installed on the left and right sides of the heat exchange plate group 1 respectively. Longitudinal movable grooves 21 are penetrated and opened at the lower ends of the side walls of the two groups of side plates 2, two groups of transverse movable grooves 22 are penetrated and opened in the middle of the side walls of the two groups of side plates 2, mounting grooves 23 are opened on the upper surfaces of the two groups of side plates 2, insertion slots 231 are opened on the lower surfaces of the mounting grooves 23, bases 3 are fixedly connected to the lower surfaces of the two groups of side plates 2, support frames 4 are connected to the lower ends inside the two groups of side plates 2 and below the heat exchange plate group 1, limiting frames 5 are connected to the middle inside the two groups of side plates 2 and on the front and rear sides of the heat exchange plate group 1, and fixing frames 6 are connected to the upper ends inside the two groups of side plates 2 and above the heat exchange plate group 1;

[0034] The support frame 4 includes two groups of first movable blocks 41, multiple groups of first fixed frames 42 and multiple groups of first support rods 43. The two groups of first movable blocks 41 are respectively slidably connected inside the longitudinal movable grooves 21 on the corresponding sides. Connecting plates 411 are fixedly connected to the sides of the two groups of first movable blocks 41 close to the heat exchange plate group 1. Multiple groups of first fixed frames 42 are equidistantly fixedly connected to the right side walls of the connecting plates 411 on the left side. Multiple groups of first support rods 43 are equidistantly fixedly connected to the left side walls of the connecting plates 411 on the right side. The multiple groups of first support rods 43 are respectively slidably inserted inside the first fixed frames 42 at the corresponding positions. The sides of the first movable blocks 41 away from the connecting plates 411 are connected with a first adjusting member 44 for adjusting the height of the first movable blocks 41;

[0035] The limiting frame 5 includes four groups of second movable blocks 51, four groups of second fixed frames 52 and four groups of second support rods 53. The four groups of second movable blocks 51 are respectively arranged in pairs on the left and right sides of the heat exchange plate group 1. The four groups of second movable blocks 51 are respectively slidably connected inside the corresponding horizontal movable grooves 22. On the side of the four groups of second movable blocks 51 close to the heat exchange plate group 1, a second connecting plate 511 is fixedly connected. The four groups of second fixed frames 52 are respectively fixedly connected in pairs to the right side walls of the two second connecting plates 511 on the left side. Between the two second fixed frames 52 on the same side, a central block 521 is fixedly connected through a connecting block. A through hole 5211 is horizontally formed in the central block 521. The four groups of second support rods 53 are respectively fixedly connected in pairs to the left side walls of the two second connecting plates 511 on the right side. The four groups of second support rods 53 are respectively slidably inserted inside the corresponding second fixed frames 52. On the left side walls of the two second connecting plates 511 on the right side, a fixed threaded rod 531 is fixedly connected, and the fixed threaded rod 531 is located between the two second support rods 53 on the same side. The left end of the fixed threaded rod 531 penetrates through the through hole 5211 and is threadedly sleeved with a fixed nut 532. The right side of the fixed nut 532 abuts against the left side of the central block 521. On the side of the two second movable blocks 51 on the same side away from the second connecting plate 511, a second adjusting member 54 for adjusting the distance between the two second movable blocks 51 on the same side is connected;

[0036] The fixing frame 6 includes two inserting blocks 61, multiple groups of third fixed frames 62 and multiple groups of third support rods 63. The two inserting blocks 61 are respectively movably inserted inside the corresponding inserting slots 231 on one side and fixed through fixing members. On the side of the two inserting blocks 61 close to the heat exchange plate group 1, a third connecting plate 611 is fixedly connected. Multiple groups of third fixed frames 62 are equidistantly fixedly connected to the right side wall of the third connecting plate 611 on the left side. Multiple groups of third support rods 63 are equidistantly fixedly connected to the left side wall of the third connecting plate 611 on the right side. The multiple groups of third support rods 63 are respectively slidably inserted inside the corresponding third fixed frames 62.

[0037] By providing the support frame 4, the limiting frame 5 and the fixing frame 6, the utility model can effectively clamp and fix the heat exchange plate group 1 with different sizes. By the first adjusting member 44, the relative height between the support frame 4 and the fixing frame 6 can be adjusted, so as to realize the clamping and fixing of the upper and lower sides of the heat exchange plate group 1 with different heights. By the two second adjusting members 54 respectively adjusting the relative distance between the four groups of second fixed frames 52 on the front and rear sides and the relative distance between the four groups of second support rods 53 on the front and rear sides, the effective clamping of the front and rear sides of the heat exchange plate group 1 with different widths can be realized. By tightening the fixed nut 532, the clamping of the left and right sides of the heat exchange plate group 1 with different thicknesses can be realized, and the operation is convenient and labor-saving.

[0038] When assembling the heat exchange plate group 1, first assemble the two sets of side plates 2. Specifically: insert the first support rod 43 and the second support rod 53 into the first fixing frame 42 and the second fixing frame 52 at corresponding positions. Insert the fixing threaded rod 531 into the through hole 5211 of the central block 521. After insertion in place, sleuth the fixing nut 532 on the outside of the fixing threaded rod 531. Then insert the heat exchange plate group 1 from the upper opening formed by the two sets of side plates 2. Next, insert the third support rod 63 into the third fixing frame 62. Then insert the two insertion blocks 61 into the corresponding slot 231 on one side and fix them with fixing parts. At this time, the upper opening formed by the two sets of side plates 2 is closed. Then adjust the actual positions of the support frame 4 and the limit frame 5 according to the size of the heat exchange plate group 1 through the first adjusting part 44 and the second adjusting part 54 to ensure that the heat exchange plate group 1 is effectively fixed. Finally, tighten the fixing nut 532 to ensure that the two sets of side plates 2 can effectively clamp the heat exchange plate group 1 therebetween, so that the heat exchange plate group 1 is effectively fixed.

[0039] Specifically, there is a sliding plug connection between the first fixing frame 42 and the first support rod 43, between the second fixing frame 52 and the second support rod 53, and between the third fixing frame 62 and the third support rod 63. The purpose of this setting is that when the thickness of the heat exchange plate group 1 changes, they can make automatic adjustments following the change in the distance between the two sets of side plates 2 to ensure that the heat exchange plate group 1 can always obtain stable support during the clamping process.

[0040] Furthermore, the first adjusting part 44 includes an adjusting bolt rod 443. A first fixing seat 441 is fixedly connected to the side of the side plate 2 away from the heat exchange plate group 1 and below the longitudinal moving groove 21. The adjusting bolt rod 443 is rotatably connected to the upper surface of the first fixing seat 441. A first support seat 442 is fixedly connected to the side of the side plate 2 away from the heat exchange plate group 1 and above the longitudinal moving groove 21. A moving hole 4421 is formed through the surface of the first support seat 442. The adjusting bolt rod 443 is rotatably connected to the inside of the moving hole 4421. A nut seat 4431 is threadedly sleeved on the outside of the adjusting bolt rod 443 and inside the first fixing seat 441 and the first support seat 442. The nut seat 4431 is fixed to the first moving block 41.

[0041] Specifically, when adjusting the height of the support frame 4, the staff needs to synchronously rotate the left and right two sets of adjusting bolt rods 443 to make the adjusting bolt rods 443 rotate inside the moving holes 4421. At this time, the nut seat 4431 will move vertically and drive the connecting plate 411 to move synchronously through the first moving block 41, so as to realize the vertical movement of the first fixing frame 42 and the first support rod 43 until the upper surfaces of the first fixing frame 42 and the first support rod 43 are in contact with the lower surface of the heat exchange plate group 1. Through the mutual cooperation of the support frame 4 and the fixing frame 6, the upper and lower sides of the heat exchange plate group 1 can be fixed.

[0042] Further, a first locking nut 444 is threadedly sleeved on the outer side of the adjusting bolt rod 443 and above the first support seat 442, and the first locking nut 444 abuts against the upper surface of the first support seat 442.

[0043] Specifically, after the vertical height adjustment of the first fixing frame 42 and the first support rod 43 is completed, the first locking nut 444 is tightened so that it abuts against the upper surface of the first support seat 442. The frictional force formed between the first locking nut 444 and the first support seat 442 can limit the adjusting bolt rod 443 and prevent it from rotating.

[0044] Further, the second adjusting member 54 includes a double-threaded rod 542. Second fixing seats 541 are fixedly connected to the front and rear sides of the side plate 2 away from the heat exchange plate group 1 and on the same side of the two sets of lateral moving grooves 22. The double-threaded rod 542 is rotatably connected to the inner sides of the two second fixing seats 541. Two nut seats 543 are threadedly sleeved on the outer side of the double-threaded rod 542, and the two nut seats 543 are respectively fixed to the corresponding moving blocks 51.

[0045] Specifically, the distance between the two moving blocks 51 on the same side can be adjusted by the second adjusting member 54, so as to indirectly adjust the relative distance between the four front and rear fixing frames 52 and the relative distance between the four front and rear support rods 53, making it suitable for heat exchange plate groups 1 of different widths. During the adjustment process, the staff only needs to synchronously rotate the two double-threaded rods 542, so that the double-threaded rod 542 rotates between the two second fixing seats 541. At this time, the two nut seats 543 on the outer side of the double-threaded rod 542 move in opposite directions at the same time. The nut seats 543 drive the connecting plate 511 to move synchronously through the moving blocks 51, so as to realize the relative movement between the four front and rear fixing frames 52 and the relative movement between the four front and rear support rods 53, until the four fixing frames 52 and the four support rods 53 are both attached to the front and rear sides of the heat exchange plate group 1, thus realizing the front and rear fixation of the heat exchange plate group 1.

[0046] Further, a knob 5421 is fixedly connected to the middle position of the outer side of the double-threaded rod 542.

[0047] Specifically, the staff can conveniently rotate the double-threaded rod 542 through the knob 5421. Preferably, the knob 5421 is designed with a hexagonal seat, which can be conveniently used in cooperation with a wrench, making the adjustment process more efficient and labor-saving.

[0048] Further, on the outer side of the double-threaded rod 542 and on the front and rear sides of the knob 5421, there are rotatably connected second support seats 544. The second support seats 544 are fixed to the side plates 2. A second locking nut 545 is threadedly sleeved on the outer side of the double-threaded rod 542 between the second support seats 544 and the knob 5421. The second locking nut 545 abuts against the side wall of the second support seat 544 close to the knob 5421.

[0049] Specifically, after the distance between the two sets of second movable blocks 51 on the same side is adjusted, tighten the second locking nut 545 so that it abuts against the side wall of the second support seat 544. The frictional force formed between the second locking nut 545 and the second support seat 544 can indirectly limit the double-threaded rod 542 and prevent it from rotating, thereby fixing the positions of the two sets of second movable blocks 51.

[0050] Further, the fixing member includes a locking seat 64. The locking seat 64 is fixedly connected to the upper surface of the insertion block 61. The locking seat 64 is movably inserted into the installation groove 23 and fixed by bolts.

[0051] Specifically, after the heat exchange plate group 1 is inserted from the upper opening formed by the two side plates 2, insert the two insertion blocks 61 into the corresponding slots 231 on one side respectively. At this time, the locking seat 64 just inserts into the installation groove 23, and then use bolts to fix the locking seat 64 to the side plate 2.

[0052] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plate-type gas-to-gas heat exchanger that is easy to assemble, characterized in that: The heat exchange plate assembly (1) comprises two groups of side plates (2), wherein the two groups of side plates (2) are symmetrically mounted on the left and right sides of the heat exchange plate assembly (1), the lower ends of the side walls of the two groups of side plates (2) are penetrated with longitudinal movable grooves (21), the middles of the side walls of the two groups of side plates (2) are penetrated with two groups of transverse movable grooves (22), the upper surfaces of the two groups of side plates (2) are penetrated with mounting grooves (23), and the lower surfaces of the mounting grooves (23) are A slot (231) is provided, the lower surfaces of the two groups of side plates (2) are fixedly connected to a base (3), the inner lower ends of the two groups of side plates (2) and located below the heat exchange plate group (1) are connected to a support frame (4), the inner middle of the two groups of side plates (2) and located at the front and rear sides of the heat exchange plate group (1) are connected to a limiting frame (5), and the inner upper ends of the two groups of side plates (2) and located above the heat exchange plate group (1) are connected to a fixing frame (6); The support frame (4) comprises two groups of movable blocks (41), multiple groups of fixed frames (42) and multiple groups of support rods (43). The two groups of movable blocks (41) are respectively slidably connected to the inside of the longitudinal movable groove (21) on the corresponding side. The two groups of movable blocks (41) are fixedly connected to a connecting plate (411) on one side close to the heat exchange plate group (1). Multiple groups of fixed frames (42) are equidistantly fixedly connected to the right side wall of the connecting plate (411) on the left side. Multiple groups of support rods (43) are equidistantly fixedly connected to the left side wall of the connecting plate (411) on the right side. Multiple groups of support rods (43) are respectively slidably inserted into the inside of the fixed frames (42) at corresponding positions. The side of the movable block (41) away from the connecting plate (411) is connected to an adjusting member (44) for adjusting the height of the movable block (41). The limiting frame (5) comprises four groups of movable blocks (51), four groups of fixed frames (52) and four groups of support rods (53). The four groups of movable blocks (51) are arranged in pairs on the left and right sides of the heat exchange plate group (1). The four groups of movable blocks (51) are slidably connected to the inside of the transverse movable grooves (22) at corresponding positions. The four groups of movable blocks (51) are fixedly connected to the connecting plates (511) on one side close to the heat exchange plate group (1). The four groups of fixed frames (52) are fixedly connected in pairs to the right side walls of the two groups of connecting plates (511) on the left. The two groups of fixed frames (52) on the same side are fixedly connected to the center blocks (521) via the connecting blocks. The center blocks (521) are transversely penetrated with through holes (5211). The four groups of support rods (53) are respectively The two sets of supporting rods (53) are respectively fixedly connected to the left side walls of the two sets of connecting plates (511) on the right side, and the four sets of supporting rods (53) are respectively slidably inserted into the fixed frame (52) at the corresponding positions. The left side walls of the two sets of connecting plates (511) on the right side are fixedly connected with a fixed threaded rod (531), and the fixed threaded rod (531) is located between the two sets of supporting rods (53) on the same side. The left end of the fixed threaded rod (531) passes through the through hole (5211) and is threadedly sleeved with a fixing nut (532). The right side of the fixing nut (532) abuts against the left side of the center block (521). The two sets of movable blocks (51) on the same side are connected to a side away from the connecting plate (511) with an adjusting member (54) for adjusting the spacing between the two sets of movable blocks (51) on the same side. The fixing frame (6) comprises two groups of plug blocks (61), a plurality of groups of fixing frames three (62) and a plurality of groups of supporting rods three (63); the two groups of plug blocks (61) are respectively movably inserted into the slots (231) on the corresponding side and fixed by fixing parts; the two groups of plug blocks (61) are fixedly connected to the connecting plate three (611) on one side close to the heat exchange plate group (1); the plurality of groups of fixing frames three (62) are equidistantly fixedly connected to the right side wall of the connecting plate three (611) on the left side; the plurality of groups of supporting rods three (63) are equidistantly fixedly connected to the left side wall of the connecting plate three (611) on the right side; and the plurality of groups of supporting rods three (63) are respectively slidably inserted into the fixing frames three (62) at corresponding positions.

2. The plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 1, characterized in that: The adjusting member (44) comprises an adjusting bolt rod (443); a fixing seat (441) is fixedly connected to the side of the side plate (2) away from the heat exchange plate group (1) and located below the longitudinal movable groove (21); the adjusting bolt rod (443) is rotatably connected to the upper surface of the fixing seat (441); a supporting seat (442) is fixedly connected to the side of the side plate (2) away from the heat exchange plate group (1) and located above the longitudinal movable groove (21); a movable hole (4421) is penetrated through the surface of the supporting seat (442); the adjusting bolt rod (443) is rotatably connected to the inside of the movable hole (4421); a nut seat (4431) is threadedly provided on the outside of the adjusting bolt rod (443) and located on the inner side of the fixing seat (441) and the supporting seat (442); the nut seat (4431) is fixed to the movable block (41).

3. The plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 2, characterized in that: A locking nut (444) is threadedly sleeved on the outer side of the adjusting bolt rod (443) and located above the supporting seat (442), and the locking nut (444) abuts against the upper surface of the supporting seat (442).

4. A plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 1, 2 or 3, characterized in that: The second adjusting member (54) comprises a double-threaded rod (542), and the side of the side plate (2) away from the heat exchange plate group (1) and located at the front and rear sides of the two groups of transverse movable grooves (22) on the same side are fixedly connected with a second fixing seat (541), the double-threaded rod (542) is rotatably connected to the inner sides of the two groups of second fixing seats (541), and the outer thread sleeves of the double-threaded rod (542) are provided with two groups of second nut seats (543), and the two groups of second nut seats (543) are respectively fixed to the movable blocks (51) at corresponding positions.

5. The plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 4, characterized in that: A knob (5421) is fixedly connected to the middle position of the outer side of the double-threaded rod (542).

6. The plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 5, characterized in that: The outer side of the double-threaded rod (542) and located at the front and rear sides of the knob (5421) are rotatably connected to the second support seat (544), and the second support seat (544) is fixed to the side plate (2). The outer side of the double-threaded rod (542) and located between the second support seat (544) and the knob (5421) is threadedly sleeved with a second locking nut (545), and the second locking nut (545) abuts against the side wall of the second support seat (544) close to the knob (5421).

7. The plate-type gas-to-gas heat exchanger that is easy to assemble according to claim 1, characterized in that: The fixing member comprises a locking seat (64), the locking seat (64) is fixedly connected to the upper surface of the insert block (61), and the locking seat (64) is movably inserted into the interior of the installation groove (23) and fixed by bolts.

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