Baffle rod heat exchanger with longitudinal partition plates

Abstract

The utility model discloses a baffle rod heat exchanger with longitudinal partition plates. The baffle rod heat exchanger comprises a shell and a U-shaped heat exchange tube arranged in an inner cavity of the shell. A longitudinal partition plate is arranged in an inner cavity of the shell. Each longitudinal partition plate is of a plate-shaped structure, and a plurality of longitudinal partition plates are arranged; the shell is inserted into the inner cavity of the shell along the central axis of the shell; a plurality of baffling rings are arranged on the inner side wall of the shell in an array mode in the center axis direction of the shell. One side of each longitudinal partition plate is fixedly connected with the corresponding baffling ring, and the adjacent longitudinal partition plates are arranged in a staggered mode and used for dividing an inner cavity of the shell into a flow guide channel of a multi-section bent structure, so that the distance of a heat exchange path in the radial plane of the shell is prolonged; therefore, the distance of a heat exchange path in the radial plane of the shell is prolonged, and the effect of improving the heat exchange efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely relates to a baffle rod heat exchanger with longitudinal partition. BACKGROUND

[0002] In the chemical industry, baffle rod heat exchangers have been widely used in various heat exchange processes due to their excellent performance characteristics, such as uniform shell-side flow and low pressure drop. These characteristics not only help to improve heat exchange efficiency, but also help to reduce maintenance costs and improve system stability.

[0003] However, in specific application scenarios, especially in space-limited environments, the design and application of baffle rod heat exchangers face a series of challenges. These scenarios require the size of the heat exchanger to be controlled within a certain range to accommodate the requirements of compact layout. At the same time, in order to maintain the required heat exchange efficiency, the heat exchanger must have sufficient shell-side area, which is difficult to achieve in limited space.

[0004] Therefore, how to design a compact and efficient baffle rod heat exchanger to meet the space-limited application requirements while ensuring its performance and reliability in chemical production is an important research direction in current chemical equipment design and manufacturing. SUMMARY

[0005] To solve the above technical problems, the utility model provides a baffle rod heat exchanger with longitudinal partition, which divides the inner cavity of the shell into flow guide channels with multiple curved structures by staggered longitudinal partitions.

[0006] To achieve the above technical purposes, the utility model adopts the following technical means:

[0007] A baffle rod heat exchanger with longitudinal partition, comprising a U-shaped heat exchange pipe located in a shell and in the inner cavity thereof; wherein the inner cavity of the shell is provided with longitudinal partitions;

[0008] The longitudinal partitions are plate-shaped structures, and multiple are provided; they are inserted into the inner cavity of the shell along the central axis of the shell;

[0009] Multiple baffle rings are arrayed on the inner side wall along the central axis direction of the shell;

[0010] One side of the longitudinal partition is fixedly connected with the baffle ring, and adjacent longitudinal partitions are staggered, for dividing the inner cavity of the shell into flow guide channels with multiple curved structures, and realizing distance extension of the heat exchange path in the radial plane of the shell.

[0011] The other side of the longitudinal partition plate is provided with a plurality of convex rib plates in the length direction; wherein, the convex rib plates are fixedly connected with the baffle, and are used for fixing the longitudinal partition plate.

[0012] A bayonet is formed on the back side of the longitudinal partition plate and the convex rib plate, and a plurality of bayonets are arranged in the length direction of the longitudinal partition plate;

[0013] The baffle is inserted into the corresponding bayonet, and is used for fixing the longitudinal partition plate.

[0014] The distance between adjacent baffles is 200mm to 400mm.

[0015] A support beam is vertically arranged between adjacent longitudinal partition plates; wherein, a plurality of support beams are arranged and uniformly distributed, and are used for fixing adjacent longitudinal partition plates.

[0016] The support beam penetrates the longitudinal partition plate, and adjacent support beams are connected in a head-to-tail manner through a screw rod.

[0017] The shell is provided with a baffle at the inlet;

[0018] The baffle is fixed on the baffle through the fixing rib plate at both ends.

[0019] The fixing rib plate is formed by bending both ends of a metal plate, and has a U-shaped structure.

[0020] Advantages:

[0021] The longitudinal partition plate is staggered, the inner cavity of the shell is divided into a plurality of flow guide channels with a plurality of curved structures, the flow time of the heat exchange medium moving in the longitudinal plane is prolonged, the distance of the heat exchange path in the radial plane of the shell is prolonged, and the heat exchange efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the baffle rod heat exchanger.

[0023] Figure 2 It is an internal structure schematic view of the baffle rod heat exchanger.

[0024] Figure 3 It is a structure schematic view of the longitudinal partition plate.

[0025] Figure 4 It is a structure schematic view of the baffle.

[0026] Figure 5 It is a structure schematic view of the support beam.

[0027] Fig. 1, shell; 2, longitudinal partition; 3, flow guide channel; 4, protruding rib plate; 5, baffle; 51, bayonet; 6, support beam; 7, screw; 71, threaded hole; 8, impact baffle; 9, fixed rib plate. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the technical scheme of the utility model, the following will be combined with the accompanying drawings to make a detailed description. Figure 1 to the accompanying drawings Figure 5 The utility model makes further detailed introduction.

[0029] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The utility model provides an embodiment: a baffle rod heat exchanger with longitudinal partition, including U type heat exchange pipe in shell and being arranged in its inner chamber, wherein, the inner chamber of shell is provided with longitudinal partition, longitudinal partition is plate structure, is provided with a plurality, along the central axis direction of shell, the inner side wall is provided with a plurality of baffle, one side of longitudinal partition is fixedly connected with baffle, adjacent longitudinal partition is staggered, is used for dividing the inner chamber of shell into the flow guide channel with multiple curved structure, realizes the distance extension of heat exchange way in the radial plane of shell.

[0030] Then, the flowing medium flows in the shell along the flow guide channel surrounded by the longitudinal partition, because the flow guide channel is S-shaped and has a multi-segment curved structure, the present application sets the longitudinal partition to make the shell-side medium fold up and down between the longitudinal partitions, increase the flow of the shell-side, ensure the heat exchange efficiency and save the land space and equipment cost under the condition of limited size of the heat exchanger.

[0031] Referring to the accompanying drawings Figure 2 and the accompanying drawings Figure 3 In order to ensure the stability of the longitudinal partition and avoid shaking caused by the impact of the shell-side medium, a plurality of protruding rib plates are arranged along the length direction on the other side of the longitudinal partition, wherein, the protruding rib plate is fixedly connected with the baffle, and is used for fixing the longitudinal partition, thereby, the structure design of the protruding rib plate on the longitudinal partition ensures the overall flatness of the longitudinal partition and the vibration problem caused by the longitudinal partition in the actual use of the heat exchanger.

[0032] Referring to the accompanying drawings Figure 3 In order to facilitate the installation of the longitudinal partition and ensure the stability of the installation, the bayonet is arranged on the back side of the protruding rib plate and the longitudinal partition, and a plurality of bayonets are arranged along the length direction of the longitudinal partition, the baffle is inserted into the corresponding bayonet, and then welded, to fix the longitudinal partition.

[0033] Specifically, the distance between adjacent baffles is 200 mm to 400 mm.

[0034] Further, refer to the attached Figure 2 and attached Figure 5 In order to ensure that the spacing between the longitudinal partitions remains stable, support beams are vertically provided between adjacent longitudinal partitions; wherein, there are multiple support beams, which are evenly distributed and used to fix adjacent longitudinal partitions.

[0035] Therefore, the present application solves the problem of unevenness of the longitudinal partition due to insufficient strength, which makes it difficult to insert the deflector rod, by adding a support beam.

[0036] Specifically, refer to the attached Figure 2 and attached Figure 5 The installation method of the support beam is to pass the support beam through the longitudinal partition, and the adjacent support beams are connected end to end through screws; that is, the screw of the front support beam is inserted into the threaded hole opened in the rear support beam.

[0037] Therefore, the threaded segmented support beam can also serve as a distance tube between the longitudinal partitions, ensuring that the spacing between each longitudinal partition meets the requirements of the drawing and facilitating the adjustment of unevenness caused by manufacturing deviations.

[0038] Refer to the attached Figure 4 In order to avoid the impact of the shell-side medium on the internal components of the shell, the shell is provided with an anti-impact baffle at the inlet; the anti-impact baffle is fixed to the deflector ring at both ends through fixed ribs.

[0039] Therefore, this application solves the problem that the arrangement of the anti-collision baffle and the deflector ring of the heat exchanger full of tubes cannot be taken into account through the structural design of the anti-collision baffle; thus, this application not only ensures the overall strength of the deflector ring, but also ensures the function of the anti-collision baffle.

[0040] Refer to the attached Figure 4 In order to improve the supporting stability of the anti-collision baffle, the fixed rib plate is formed by bending the two ends of the metal plate to form a U-shaped structure.

[0041] Installation method:

[0042] First, baffles are set at fixed intervals within the shell. The bayonet holes on the longitudinal baffles are then inserted into the baffles and welded together to secure the baffles. Each baffle is welded to the corresponding baffle using protruding ribs, ensuring overall rigidity and preventing vibration during actual heat exchanger operation.

[0043] Then, support beams need to be added in the center of the baffle, that is, between the longitudinal partitions, and threaded holes and threaded rods are arranged at the two ends of the support beams; at this time, the support beams segmentally support the longitudinal partitions arranged in the shell; specifically, each segment of the support beams is of a predetermined length, and is installed in each layer; and for the longitudinal partitions, each segment of the support beams needs to play the role of a fixed-distance pipe, preventing the distance of the longitudinal partitions from deviating too much and affecting the smooth penetration of the heat exchange pipes;

[0044] Then, the anti-collision baffle is welded on the bent rib plate, and the rib plate is welded on the baffle, so that the overall rigidity of the baffle can be ensured, and the effect of the anti-collision baffle can also be ensured, and under the condition that the heat exchanger is full of pipes, the heat exchange pipes can also be ensured to be arranged in a full distribution.

[0045] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A baffle rod heat exchanger with longitudinal partitions, comprising a shell and a U-shaped heat exchange tube arranged in the inner cavity of the shell; wherein: A longitudinal partition is provided in the inner cavity of the shell; the characteristics are: The longitudinal partition is a plate-like structure, and is provided in plurality; it is inserted into the inner cavity of the shell along the central axis of the shell; Along the central axis direction of the shell, a plurality of baffles are arranged in an array on the inner side wall thereof; One side of the longitudinal partition is fixedly connected to the deflector ring, and adjacent longitudinal partitions are staggered to divide the inner cavity of the shell into guide channels with multiple curved structures, thereby extending the distance of the heat exchange path in the radial plane of the shell.

2. The baffle rod heat exchanger with longitudinal partitions according to claim 1, characterized in that: A plurality of protruding ribs are arranged in an array along the length direction on the other side of the longitudinal partition; wherein the protruding ribs are fixedly connected to the baffle ring to fix the longitudinal partition.

3. The baffle rod heat exchanger with longitudinal partitions according to claim 2, characterized in that: A bayonet is provided on the side opposite to the protruding rib and the longitudinal partition, and a plurality of bayonet are arranged in an array along the length direction of the longitudinal partition; The deflector ring is inserted into the corresponding bayonet to fix the longitudinal partition.

4. The baffle rod heat exchanger with longitudinal partitions according to claim 3, characterized in that: The distance between adjacent baffles is 200 mm to 400 mm.

5. The baffle rod heat exchanger with longitudinal partitions according to claim 1, characterized in that: Support beams are vertically provided between adjacent longitudinal partitions; wherein, a plurality of support beams are provided and evenly distributed, and are used to fix adjacent longitudinal partitions.

6. The baffle rod heat exchanger with longitudinal partitions according to claim 5, characterized in that: The support beam passes through the longitudinal partition, and adjacent support beams are connected end to end via screw rods.

7. The baffle rod heat exchanger with longitudinal partitions according to claim 1, characterized in that: The shell is provided with an anti-collision baffle at the inlet; The two ends of the anti-collision baffle are fixed on the deflector ring through fixed ribs.

8. The baffle rod heat exchanger with longitudinal partitions according to claim 7, characterized in that: The fixed rib is formed by bending a metal plate at both ends to form a U-shaped structure.

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