Heat exchanger for petrochemical industry production

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger for petrochemical production, which comprises a flow guide pipe, a fixing ring A, a heat exchange pipe box, a fixing ring B, a sliding rod and a driving component. A flow guide assembly is arranged in the flow guide pipe, and a refrigerant input pipe and a refrigerant output pipe are arranged on the flow guide pipe. The fixing ring A is coaxially connected with the flow guide pipe, and a plurality of through holes B are formed in the fixing ring A; a raw material input pipe and a raw material output pipe are arranged on the heat exchange pipe box. The fixing ring B is connected with the heat exchange tube box and provided with a plurality of insertion tubes. The sliding rods are arranged on the fixing ring B. The sliding rods are inserted into the insertion pipes on the corresponding sides respectively and are in sliding connection with the inner walls of the insertion pipes. The sliding rods are elastically connected with wedge-shaped clamping blocks in a sliding mode, and the wedge-shaped clamping blocks extend outwards along the sliding grooves B in the corresponding sides respectively. The driving assembly is connected with the heat exchange tube box and drives the sliding rods to slide synchronously. The heat exchange tube box is easy and convenient to disassemble and assemble, and maintenance of the whole device and replacement of internal structural parts are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially is related to a heat exchanger for petroleum chemical production. BACKGROUND

[0002] The heat exchanger is usually used in the petroleum chemical production process, and there are various types of common heat exchangers, but the tube heat exchanger is mainly used in the chemical production process, and the commonly used heat exchanger is complex in the installation mode of the partition plate and the tube plate, and it is very troublesome to disassemble, replace and maintain.

[0003] The technical scheme disclosed by the Chinese patent with the publication number CN212778778U separates the flanges between the tube box and the shell, pulls the tube box to separate the protection plate and the tube plate body from the shell, twists the second fixing bolt to release the restriction on the guide rail plate, continuously pulls the tube box, moves the connecting plate along the guide rail plate, separates the connecting plate from the guide rail plate, disassembles the protection plate and the tube plate body, twists the first fixing bolt to release the connection restriction between the sleeve plate and the connecting plate, pulls the connecting plate to separate the connecting plate from the tube box, exposes the connecting plate, and finally maintains and replaces the connecting plate, the protection plate and the tube plate body, achieving the purpose of convenient replacement.

[0004] However, the device still has the following problems: the connection between the tube box and the shell of the device adopts the traditional flange connection, and multiple bolts and nuts need to be twisted to realize the fastening and disassembly of the two, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a heat exchanger for petroleum chemical production.

[0006] The technical scheme of the utility model: a heat exchanger for petroleum chemical production, comprising a flow guide pipe, a flow guide assembly is arranged in the flow guide pipe, and a refrigerant input pipe and a refrigerant output pipe are arranged on the flow guide pipe and communicate with the inside of the flow guide pipe.

[0007] A fixed ring A is coaxially connected to the outer wall of the open end of the flow guide pipe, and a plurality of through holes B are arranged in a ring array around the axis of the fixed ring A.

[0008] A heat exchange pipe box is provided with a raw material input pipe, and a raw material output pipe is arranged on the heat exchange pipe box.

[0009] A fixed ring B is coaxially connected to the outer wall of the heat exchange pipe box, and a plurality of insertion pipes are arranged in a ring array around the axis of the fixed ring B, a chute B is arranged on the insertion pipe and communicates with the inside of the insertion pipe, and a receiving groove is arranged in the insertion pipe, and each insertion pipe passes through the corresponding through hole B on the side.

[0010] The slide rods are arranged in an annular array on the fixed ring B and are in sliding connection with the fixed ring B, each of the slide rods is inserted into the corresponding side insertion pipe and is in sliding connection with the inner wall of the insertion pipe.

[0011] The driving assembly is connected with the heat exchange pipe box, and drives the slide rods to slide synchronously to pull the wedge-shaped clamping blocks to lock the fixed ring A and the fixed ring B or retract the wedge-shaped clamping blocks into the storage grooves.

[0012] Preferably, the flow guide assembly comprises the porous plates, the column pipes A and the column pipes B. The two porous plates are symmetrically arranged in the flow guide pipe, the column pipes A and the column pipes B are arranged in parallel between the two porous plates, one end of the column pipes A and the column pipes B is connected with one of the porous plates and the other end is in sliding connection with the other porous plate, and the column pipes A and the column pipes B are in communication with the corresponding material guide holes of the corresponding side porous plate.

[0013] Preferably, a plurality of flow guide plates are arranged in the flow guide pipe in a staggered manner, a plurality of through holes A are arranged on the flow guide plates, the column pipes A and the column pipes B are respectively arranged through the corresponding through holes A and are in sliding connection with the through holes A, and the flow guide plates are provided with locking assemblies for limiting the sliding of the column pipes A or the column pipes B.

[0014] Preferably, the locking assembly comprises a clamping plate and a screw rod A. A sliding groove A is arranged on the flow guide plate, the clamping plate is arranged in the sliding groove A and is in sliding connection with the inner wall of the sliding groove A, the screw rod A is in rotational connection with the flow guide plate, and the screw rod A is inserted into the clamping plate and is in screw connection with the clamping plate.

[0015] Preferably, a heat insulation plate is arranged in the heat exchange pipe box, the heat insulation plate is in sealing cooperation with one of the porous plates, so as to divide the inner cavity of the heat exchange pipe box into an upper chamber and a lower chamber, the upper chamber is in communication with the input end of the column pipes A and the raw material input pipe, and the lower chamber is in communication with the output end of the column pipes B and the raw material output pipe.

[0016] Preferably, a limiting groove is arranged at one end of the insertion pipe into which the slide rod is inserted, a spring rod is arranged in the limiting groove, the wedge-shaped clamping block is inserted into the limiting groove and is connected with the inner wall of the limiting groove, and the wedge-shaped clamping block is connected with the movable end of the spring rod.

[0017] Preferably, the driving assembly comprises a sliding frame and a screw rod B, the sliding frame is in sliding connection with the heat exchange pipe box, the sliding frame is connected with each of the slide rods, the screw rod B is in rotational connection with the heat exchange pipe box, the screw rod B penetrates through the sliding frame and is in screw connection with the sliding frame, and the end of the screw rod B away from the heat exchange pipe box is connected with a rudder disc.

[0018] Compared with the prior art, the heat exchange pipe box has the following beneficial technical effects:

[0019] Through the cooperation of the fixed ring A, the fixed ring B, the insertion pipe, the slide rod, the wedge-shaped clamping block and the driving assembly, the insertion pipe is used to pass through the fixed ring A to limit the rotation of the fixed ring A, then all the slide rods are driven to slide synchronously by the driving assembly, and then the wedge-shaped clamping block is driven to slide, the fixed ring A is tightly pressed by the wedge-shaped clamping block cooperating with the fixed ring B, the fixed connection of the heat exchange pipe box guide vane is realized, and the wedge-shaped clamping block is retracted into the storage groove by the reverse pushing of the insertion pipe by the driving assembly, so that the insertion pipe can freely slide in the through hole B on the fixed ring A, and the heat exchange pipe box is convenient to disassemble from the guide pipe. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of an embodiment in the utility model;

[0021] Figure 2 It is an internal structure schematic view of a guide pipe;

[0022] Figure 3 It is a structural schematic view of a guide plate;

[0023] Figure 4 It is a connection structure schematic view of each component on a heat exchange pipe box;

[0024] Figure 5 It is a connection structure schematic view of a slide rod and an insertion pipe.

[0025] The drawings show that: 1, guide pipe; 2, multi-hole plate; 3, tube A; 4, tube B; 5, guide plate; 51, through hole A; 52, sliding groove A; 6, clamping plate; 7, screw A; 8, refrigerant input pipe; 9, refrigerant output pipe; 10, fixed ring A; 1001, through hole B; 11, heat exchange pipe box; 12, heat insulation plate; 13, raw material input pipe; 14, raw material output pipe; 15, fixed ring B; 16, insertion pipe; 161, sliding groove B; 162, storage groove; 17, slide rod; 18, spring rod; 19, wedge-shaped clamping block; 20, screw B; 21, steering wheel. DETAILED DESCRIPTION

[0026] Example one

[0027] As Figures 1-5The utility model provides a heat exchanger for petroleum chemical industry production, including flow guide pipe 1, fixed ring A10, heat exchange pipe box 11, fixed ring B15, slide rod 17 and drive assembly. Flow guide pipe 1 is provided with flow guide assembly in, and the refrigerant input pipe 8 and refrigerant output pipe 9 that are communicated with its inside are provided on flow guide pipe 1. Flow guide assembly includes porous plate 2, row pipe A3 and row pipe B4. Two porous plates 2 are symmetrically arranged in flow guide pipe 1, and row pipe A3 and row pipe B4 are arranged in parallel between two porous plates 2, and one of the one end of row pipe A3 and row pipe B4 is connected with another porous plate 2, and the other end is slidably connected with another porous plate, and row pipe A3 and row pipe B4 are communicated with the corresponding material guide hole of the corresponding side porous plate 2 respectively. Fixed ring A10 is coaxially connected with the open end outer wall of flow guide pipe 1, and a plurality of through holes B1001 are arranged in annular array around the axis of fixed ring A10. Heat exchange pipe box 11 is provided with raw material input pipe 13, and heat exchange pipe box 11 is provided with raw material output pipe 14. Heat exchange pipe box 11 is provided with heat insulation plate 12, heat insulation plate 12 is sealingly matched with one of the porous plates 2, so as to divide the inner cavity of heat exchange pipe box 11 into upper chamber and lower chamber, wherein the upper chamber is communicated with the input end of row pipe A3 and raw material input pipe 13, and the lower chamber is communicated with the output end of row pipe B4 and raw material output pipe 14. Fixed ring B15 is coaxially connected with the outer wall of heat exchange pipe box 11, a plurality of insertion tubes 16 are arranged in annular array around the axis of fixed ring B15, the insertion tube 16 is provided with the sliding groove B161 communicated with its inside, and the insertion tube 16 is provided with the receiving groove 162, and each insertion tube 16 penetrates through the corresponding side through hole B1001. Slide rod 17 is arranged in annular array on fixed ring B15 and is slidably connected with it, each slide rod 17 is inserted into the corresponding side insertion tube 16 and is slidably connected with the inner wall thereof. The end of slide rod 17 inserted into insertion tube 16 is provided with limiting groove, spring rod 18 is arranged in limiting groove, wedge-shaped clamping block 19 is inserted into limiting groove and is connected with the inner wall thereof, and wedge-shaped clamping block 19 is connected with the movable end of spring rod 18, and each wedge-shaped clamping block 19 respectively extends outward along the corresponding side sliding groove B161. Drive assembly includes slide and screw B20, and the slide is slidably connected with heat exchange pipe box 11, and the slide is connected with each slide rod 17, and the screw B20 is rotatably connected with heat exchange pipe box 11, and the screw B20 penetrates through the slide and is screw-connected with it, and the end of screw B20 away from heat exchange pipe box 11 is connected with rudder disc 21, and drive assembly drives each slide rod 17 to slide synchronously, so as to pull wedge-shaped clamping block 19 to lock fixed ring A10 and fixed ring B15, or retract wedge-shaped clamping block 19 into receiving groove 162.

[0028] In this embodiment, when disassembling the heat exchange tube box 11, the steering wheel 21 is rotated to drive the screw rod B20 to push the sliding frame to slide towards the fixed ring B15, at this time, the wedge-shaped clamping block 19 gradually slides and automatically retracts when contacting the edge of the receiving groove 162, and when the wedge-shaped clamping block 19 is completely retracted, the heat exchange tube box 11 can be slid transversely and removed. When assembling, the pipe inserting part 16 is aligned with the corresponding through hole B1001, and then the heat exchange tube box 11 is slid to make the fixed ring B15 abut against the fixed ring 10, then the steering wheel 21 is reversely rotated, and then the sliding frame is reversely slid by the screw rod B20, thereby driving the sliding rod 17 to slide, and then the wedge-shaped clamping block 19 automatically pops out after being separated from the receiving groove 162 and gradually slides to abut against the side of the fixed ring A10 away from the fixed ring B15.

[0029] Embodiment two

[0030] As shown in Figure 2 and Figure 3 , the utility model discloses a heat exchanger for petrochemical production, compared with embodiment one, a plurality of guide plates 5 are arranged in the flow guide pipe 1, a plurality of through holes A51 are arranged on the guide plate 5, the tube A3 and the tube B4 are respectively penetrated through the corresponding through hole A51 and are slidably connected with it, and the locking assembly that limits the sliding of the tube A3 or the tube B4 is arranged on the guide plate 5. The locking assembly includes a clamping plate 6 and a screw rod A7. The guide plate 5 is provided with a sliding groove A52, the direction of the sliding groove A52 is consistent with the flow direction of the refrigerant, the clamping plate 6 is arranged in the sliding groove A52 and is slidably connected with the inner wall thereof, the screw rod A7 is rotatably connected with the guide plate 5, and the screw rod A7 is inserted into the clamping plate 6 and is screw-connected with it.

[0031] In this embodiment, the guide plate 5 is easily abraded due to the impact of the refrigerant, and the excessive abrasion can reduce the cyclone guiding performance of the refrigerant, at this time, the guide plate 5 needs to be replaced, the heat exchange tube box 11 is disassembled, then the porous plate 2 at the fixed end of the tube A3 and the tube B4 is used to pull out all the guide plates 5 outward, then the guide plate 5 is removed from the tube by loosening the screw rod A7, and then the new guide plate 5 is sleeved and the screw rod A7 is tightened.

[0032] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A heat exchanger for petrochemical production, characterized by, The utility model relates to a kind of heat exchange device, including Flow guide pipe (1), flow guide component is arranged in flow guide pipe (1), and the refrigerant input pipe (8) and refrigerant output pipe (9) that are communicated with the inside of flow guide pipe (1) are arranged on flow guide pipe (1); Fixed ring A (10), fixed ring A (10) is coaxially connected with the outer wall of the opening end of flow guide pipe (1), and a plurality of through holes B (1001) are arranged in ring array around the axis of fixed ring A (10); Heat exchange pipe box (11), raw material input pipe (13) is arranged on heat exchange pipe box (11), and raw material output pipe (14) is arranged on heat exchange pipe box (11); Fixed ring B (15), fixed ring B (15) is coaxially connected with the outer wall of heat exchange pipe box (11), and a plurality of insertion tubes (16) are arranged in ring array around the axis of fixed ring B (15), sliding groove B (161) is arranged on insertion tube (16) and communicated with the inside thereof, and receiving groove (162) is arranged in insertion tube (16);Each insertion tube (16) respectively passes through corresponding side through hole B (1001); Slide rod (17), slide rod (17) is arranged in ring array on fixed ring B (15) and is slidably connected with it, each slide rod (17) is respectively inserted into corresponding side insertion tube (16) and is slidably connected with the inner wall thereof;Slide rod (17) is elastically connected with wedge-shaped clamping block (19), and each wedge-shaped clamping block (19) respectively extends outward along corresponding sliding groove B (161); And drive assembly, drive assembly is connected with heat exchange pipe box (11), drive assembly drives each slide rod (17) to slide synchronously, so as to pull wedge-shaped clamping block (19) to lock fixed ring A (10) and fixed ring B (15), or retract wedge-shaped clamping block (19) into receiving groove (162).

2. The heat exchanger for petrochemical production according to claim 1, characterized in that, Flow guide component includes perforated plate (2), tube bank A (3) and tube bank B (4);Two perforated plates (2) are symmetrically arranged in flow guide pipe (1), tube bank A (3) and tube bank B (4) are arranged in parallel between two perforated plates (2), one of the ends of tube bank A (3) and tube bank B (4) is connected with another perforated plate (2), and the other end is slidably connected with another perforated plate, and tube bank A (3) and tube bank B (4) are respectively communicated with corresponding material guiding holes of corresponding side perforated plate (2).

3. The heat exchanger for petrochemical production according to claim 2, characterized in that, A plurality of flow guide plates (5) are arranged in flow guide pipe (1) in a staggered manner, a plurality of through holes A (51) are arranged on the flow guide plate (5), the tube bank A (3) and the tube bank B (4) respectively penetrate through the corresponding through hole A (51) and are slidably connected with it, and the locking assembly is arranged on the flow guide plate (5) to limit the sliding of the tube bank A (3) or the tube bank B (4).

4. The heat exchanger for petrochemical production according to claim 3, characterized in that, Locking assembly includes clamping plate (6) and screw A (7);Sliding groove A (52) is arranged on the flow guide plate (5), the clamping plate (6) is arranged in the sliding groove A (52) and is slidably connected with the inner wall thereof, the screw A (7) is rotatably connected with the flow guide plate (5), and the screw A (7) is inserted into the clamping plate (6) and is spirally connected with it.

5. The heat exchanger for petrochemical production according to claim 2, characterized in that, The heat exchange tube box (11) is provided with a heat insulation plate (12), the heat insulation plate (12) is sealed with one of the porous plates (2) to divide the inner cavity of the heat exchange tube box (11) into an upper chamber and a lower chamber, the upper chamber is communicated with the input end of the column tube A (3) and the raw material input pipe (13), and the lower chamber is communicated with the output end of the column tube B (4) and the raw material output pipe (14).

6. The heat exchanger for petrochemical production according to claim 1, characterized in that, The sliding rod (17) is inserted into one end of the insertion pipe (16) and provided with a limiting slot, a spring rod (18) is arranged in the limiting slot, a wedge-shaped clamping block (19) is inserted into the limiting slot and connected with the inner wall, and the wedge-shaped clamping block (19) is connected with the movable end of the spring rod (18).

7. The heat exchanger for petrochemical production according to claim 1, characterized in that, The driving assembly comprises a sliding frame and a screw rod B (20), the sliding frame is slidingly connected with the heat exchange tube box (11), the sliding frame is connected with each sliding rod (17), the screw rod B (20) is rotationally connected with the heat exchange tube box (11), the screw rod B (20) penetrates through the sliding frame and is screwedly connected with the sliding frame, and the end, away from the heat exchange tube box (11), of the screw rod B (20) is connected with a rudder disc (21).

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