Energy-saving stainless steel tube type condenser

Abstract

The application discloses an energy-saving stainless steel tube-bundle condenser, and relates to the technical field of condensers, which comprises a shell and multiple groups of tube bundles, and further comprises an upper tube plate, a lower tube plate, a baffle plate, a driving mechanism for driving the upper tube plate to rotate, a first adjusting mechanism for driving the tube bundles to rotate, and a second adjusting mechanism for driving the baffle plate to lift and fall. By changing the flow path of steam inside the shell, the difference in temperature of the same height region inside the shell is reduced, and the stability of the pressure inside the shell is improved. By driving the tube bundles to rotate, the flow-approaching surface of the tube bundles is kept changing, the problem that the uniform cooling of steam by the internal cooling liquid of the tube bundles is affected due to the invariable flow-approaching surface of the tube bundles is avoided, the use effect of the cooling liquid is improved, by changing the height at which steam flows between two adjacent baffle plates, the problem that vortexes are easily formed at the corners of the baffle plates and are gathered for a long time is avoided, and the problem that the condensation efficiency is reduced due to the occupation of the condensation region by the gathered steam is avoided.

Description

Technical Field

[0001] This invention relates to the field of condenser technology, and specifically to an energy-saving stainless steel shell-and-tube condenser. Background Technology

[0002] In current chemical production, condensers are frequently used. The main purpose of condensers is to cool gases appropriately and turn them into liquids.

[0003] In existing technologies, the position of the baffles is fixed, so the path of steam flow inside the condenser is constant. This results in a significant temperature difference between the inflow and outflow areas of the gas at the same height inside the shell, affecting the stability of the internal pressure. Secondly, the position of the tube bundle is also fixed, so the temperature of the coolant on the front side of the tube bundle at the same height is higher than that on the back side, affecting the utilization rate of the coolant. In addition, steam is prone to forming eddies at the corners of the baffles, leading to prolonged accumulation. This accumulation of steam can occupy the condensation area, resulting in a decrease in condensation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving stainless steel shell-and-tube condenser to solve the problems in the prior art where the position of the baffle is fixed, so the steam flow path inside the condenser is unchanged, resulting in a large temperature difference between the gas inflow and outflow areas at the same height inside the shell, affecting the stability of the internal pressure. The position of the tube bundle is also fixed, so the temperature of the coolant on the front side of the tube bundle at the same height is higher than that on the back side, affecting the utilization rate of the coolant. Steam is prone to forming vortices at the corners of the baffle, leading to long-term accumulation, which in turn can easily cause the condensation area to be occupied by steam, resulting in a decrease in condensation efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving stainless steel shell-and-tube condenser, comprising a shell and multiple sets of tubes, and further comprising:

[0006] The upper tube sheet is rotatably connected inside the housing;

[0007] The lower tube sheet is rotatably connected inside the housing and located below the upper tube sheet; multiple tube bundles are installed inside the upper and lower tube sheets.

[0008] Multiple baffles are provided, and the baffles are slidably sleeved on the outside of multiple tube bundles. The multiple baffles are arranged sequentially from top to bottom and are staggered with each other.

[0009] The drive mechanism, which is mounted on the housing, is used to drive the upper tube sheet to rotate;

[0010] The first adjustment mechanism, which is installed inside the housing, is used to drive the tube bundle to rotate.

[0011] The second adjustment mechanism, installed inside the housing, is used to drive the baffle plate to rise and fall.

[0012] Furthermore, a steam inlet pipe and a coolant outlet pipe are respectively installed on the top of one side of the housing, and the coolant outlet pipe and the steam inlet pipe are located above and below the upper tube sheet, respectively;

[0013] A condensate drain pipe and a coolant inlet pipe are respectively installed on the bottom of the other side of the housing. The coolant inlet pipe and the condensate drain pipe are located below and above the lower tube sheet, respectively.

[0014] Furthermore, the drive mechanism includes an external gear ring fixedly sleeved on the outside of the upper tube sheet and a motor mounted on the top outer wall of the other side of the housing;

[0015] The output end of the motor is fixedly connected to a first gear, which meshes with an external gear ring.

[0016] Furthermore, a partition is fixedly connected inside the housing, and the partition is located above the upper tube sheet.

[0017] Furthermore, multiple groups of tube bundles are distributed sequentially from the inside out, with each group of tube bundles comprising multiple tube bundles, and the multiple tube bundles in the same group are evenly distributed in a circular trajectory.

[0018] Furthermore, the first adjustment mechanism is provided in multiple sets, and the multiple sets of the first adjustment mechanism are respectively connected to the multiple sets of tube bundles;

[0019] The first adjustment mechanism includes an internal gear ring fixed to the bottom of the partition and a second gear fixedly sleeved on the outside of the tube bundle, wherein the internal gear ring meshes with the second gear.

[0020] Furthermore, the partition plate is internally rotatably connected with multiple sealing rings, which are concentrically arranged and correspond to multiple sets of tube bundles respectively;

[0021] Multiple tube bundles in the same group are all installed through the sealing ring and are rotatably connected to the sealing ring;

[0022] The top of the partition is fixedly connected to a plurality of fixing rods, the top end of the fixing rods being fixedly connected to the inner wall of the top of the housing, and the fixing rods being located between two adjacent sealing rings;

[0023] The internal gear ring is located directly below the fixing rod.

[0024] Furthermore, the second adjustment mechanism includes a fixed shaft fixedly connected to the center inside the housing and a plurality of reciprocating screws fixedly sleeved outside the fixed shaft;

[0025] Multiple reciprocating screws are arranged sequentially along the height direction of the fixed shaft;

[0026] The baffles are respectively screwed onto the outside of the reciprocating screws;

[0027] The fixed shaft is arranged to pass through the upper tube sheet and the lower tube sheet in sequence, and is rotatably connected to the upper tube sheet and the lower tube sheet respectively.

[0028] Compared with the prior art, the energy-saving stainless steel shell-and-tube condenser provided by the present invention has the following beneficial effects:

[0029] 1. By driving the upper tube sheet to rotate and through the connection of the tube bundle, the lower tube sheet and the baffle plate rotate synchronously, changing the flow path of steam inside the shell, reducing the temperature difference in the same height area inside the shell, improving the stability of the steam condensation rate, and further improving the stability of the pressure inside the shell.

[0030] 2. When the upper tube sheet rotates, it synchronously drives the tube bundle to rotate, thereby keeping the flow-facing surface of the tube bundle constantly changing. This avoids the problem of the internal coolant affecting the uniform cooling of steam due to the constant flow-facing surface of the tube bundle, thus improving the performance of the coolant.

[0031] 3. When the upper tube sheet rotates, it drives the baffles to rotate synchronously through each tube bundle. Since the fixed shaft and the reciprocating screw are fixed, the baffles also move up and down along the outside of the reciprocating screw when rotating. In this process, the height of the steam flow between two adjacent baffles is changed, which avoids the problem of steam easily forming eddies and accumulating for a long time at the corner of the baffle. This further avoids the problem of reduced condensation efficiency caused by steam accumulation occupying the condensation area. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention;

[0035] Figure 3 This is a schematic diagram of the drive mechanism and partition structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the first adjusting mechanism and the partition structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the tube bundle and baffle structure of the present invention;

[0038] Figure 6 This is a schematic diagram of the second adjustment mechanism of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Shell; 2. Tube bundle; 3. Upper tube sheet; 4. Lower tube sheet; 5. Baffle plate; 6. Steam inlet pipe; 7. Coolant outlet pipe; 8. Condensate outlet pipe; 9. Coolant inlet pipe; 10. External gear ring; 11. Motor; 12. First gear; 13. Partition plate; 14. Internal gear ring; 15. Second gear; 16. Sealing ring; 17. Fixing rod; 18. Fixing shaft; 19. Reciprocating screw. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Example: Please refer to Figure 1 - Figure 6 An energy-saving stainless steel shell-and-tube condenser includes a shell 1 and multiple sets of tube bundles 2, which are distributed sequentially from the inside to the outside. Each set of tube bundles 2 includes multiple tube bundles 2, and the multiple tube bundles 2 in the same set are evenly distributed in a ring. A steam inlet pipe 6 and a coolant outlet pipe 7 are respectively installed on the top of one side of the shell 1, and the coolant outlet pipe 7 and the steam inlet pipe 6 are located above and below the upper tube plate 3, respectively. A condensate outlet pipe 8 and a coolant inlet pipe 9 are respectively installed on the bottom of the other side of the shell 1, and the coolant inlet pipe 9 and the condensate outlet pipe 8 are located below and above the lower tube plate 4, respectively.

[0043] Coolant is injected into the housing 1 through the coolant inlet pipe 9, which is also below the lower tube sheet 4. The coolant then enters the tube bundles 2 and flows from bottom to top, reaching the top of the baffle 13 and being discharged through the coolant outlet pipe 7. Steam enters the housing 1 through the steam inlet pipe 6 and moves from top to bottom along the baffles 5 in a curved manner. During this process, the steam is cooled down by the tube bundles 2, and the steam condenses into water, flows downward, and is discharged through the condensate outlet pipe 8.

[0044] The coolant flows from bottom to top, so the coolant temperature in the upper region of tube bundle 2 is higher than that in the lower region. The steam flows from top to bottom, so the temperature in the upper region of the shell 1 is higher than that in the lower region. Therefore, when the steam is introduced into the shell 1, it comes into contact with the upper region of tube bundle 2. The temperature in the upper region of tube bundle 2 is relatively high, so the temperature difference between the upper region and the steam is relatively small, which plays a role in protecting tube bundle 2.

[0045] Also includes:

[0046] The upper tube sheet 3 is rotatably connected inside the housing 1;

[0047] The lower tube sheet 4 is rotatably connected inside the housing 1 and located below the upper tube sheet 3. Multiple tube bundles 2 are installed inside the upper tube sheet 3 and the lower tube sheet 4.

[0048] Multiple baffles 5 are provided. The baffles 5 are slidably sleeved on the outside of multiple tube bundles 2. The multiple baffles 5 are arranged sequentially from top to bottom and are staggered with each other. The top of the baffles 5 can be set as an inclined surface and is inclined downward towards the side of the notch of the baffles 5 to facilitate the flow of condensate.

[0049] A drive mechanism is mounted on the housing 1 and is used to drive the upper tube sheet 3 to rotate. The drive mechanism includes an outer gear ring 10 fixedly sleeved on the outside of the upper tube sheet 3 and a motor 11 mounted on the top outer wall of the other side of the housing 1. A first gear 12 is fixedly connected to the output end of the motor 11, and the first gear 12 meshes with the outer gear ring 10.

[0050] By controlling the motor 11 to drive the first gear 12 to rotate at low speed, the first gear 12 and the outer gear ring 10 mesh to drive the upper tube sheet 3 to rotate. Through the connection of the tube bundle 2, the lower tube sheet 4 and the baffle plate 5 rotate synchronously, changing the flow path of steam inside the shell 1.

[0051] The first adjustment mechanism, installed inside the housing 1, drives the tube bundle 2 to rotate. A partition 13 is fixedly connected inside the housing 1, positioned above the upper tube plate 3. Multiple sets of the first adjustment mechanism are provided, each connected to a different set of tube bundles 2. The first adjustment mechanism includes an internal gear ring 14 fixedly connected to the bottom of the partition 13 and a second gear 15 fixedly sleeved on the outside of the tube bundle 2. The internal gear ring 14 meshes with the second gear 15. Multiple sealing rings 16 are rotatably connected inside the partition 13, and these sealing rings 16 are concentrically arranged. Multiple sealing rings 16 are respectively associated with multiple sets of tube bundles 2; multiple tube bundles 2 in the same set are all installed through the sealing rings 16 and are rotatably connected to the sealing rings 16; multiple fixing rods 17 are fixedly connected to the top of the partition plate 13, the top of the fixing rods 17 are fixedly connected to the inner wall of the top of the shell 1, and the fixing rods 17 are located between two adjacent sealing rings 16; the internal gear rings 14 are located directly below the fixing rods 17, thus achieving the fixation of each internal gear ring 14, that is, when the upper tube plate 3 and the tube bundles 2 rotate, the internal gear rings 14 will not rotate with them;

[0052] When the upper tube sheet 3 rotates, it drives each tube bundle 2 to revolve around the fixed shaft 18. Through the meshing action between each second gear 15 and the internal gear ring 14, the tube bundle 2 is driven to rotate, so that the flow-facing surface of the tube bundle 2, that is, the side facing the steam flow direction, remains unchanged. This avoids the problem of the internal coolant affecting the uniform cooling of steam due to the unchanged flow-facing surface of the tube bundle 2, thereby improving the performance of the coolant.

[0053] The second adjustment mechanism is installed inside the housing 1 and is used to drive the baffle 5 to rise and fall. The second adjustment mechanism includes a fixed shaft 18 fixedly connected to the center inside the housing 1 and a plurality of reciprocating screws 19 fixedly sleeved outside the fixed shaft 18. The plurality of reciprocating screws 19 are arranged sequentially along the height direction of the fixed shaft 18. The plurality of baffles 5 are respectively screwed to the outside of the plurality of reciprocating screws 19. The fixed shaft 18 is arranged sequentially through the upper tube sheet 3 and the lower tube sheet 4, and is rotatably connected to the upper tube sheet 3 and the lower tube sheet 4 respectively.

[0054] When the upper tube sheet 3 rotates, it drives the baffles 5 to rotate synchronously through each tube bundle 2. Since the fixed shaft 18 and the reciprocating screw 19 are fixed, the baffles 5 also move up and down along the outside of the reciprocating screw 19 when rotating. In this process, the height of the steam flow between two adjacent baffles 5 is changed, avoiding the problem that the steam is easy to form vortices at the corner of the baffles 5 and accumulate for a long time. This further avoids the problem of reduced condensation efficiency caused by the accumulation of steam occupying the condensation area.

[0055] Working Principle: During operation, coolant is injected into the housing 1 through the coolant inlet pipe 9, which is below the lower tube sheet 4. The coolant then enters each tube bundle 2 and flows from bottom to top, reaching the top of the baffle 13 and exiting through the coolant outlet pipe 7. Steam enters the housing 1 through the steam inlet pipe 6 and moves downward along each baffle 5 in a curved path. During this process, the steam is cooled by each tube bundle 2, condensing into water, which flows downward and exits through the condensate outlet pipe 8. During condensation, the control motor 11 drives the first gear 12 to rotate at low speed. Through the meshing action between the first gear 12 and the external gear ring 10, the upper tube sheet 3 is driven to rotate. Through the connection of the tube bundles 2, the lower tube sheet 4 and the baffle 5 rotate synchronously, changing the flow path of steam inside the housing 1. When the upper tube sheet 3 rotates, it drives each tube bundle 2 to remain fixed. The tube bundle 2 revolves around shaft 18, and through the meshing action between each second gear 15 and the internal gear ring 14, it drives the tube bundle 2 to rotate. This keeps the flow-facing surface of the tube bundle 2, that is, the side facing the steam flow direction, constantly changing. This avoids the problem of the internal coolant affecting the uniform cooling of steam due to the unchanged flow-facing surface of the tube bundle 2, thereby improving the coolant's performance. At the same time, when the upper tube sheet 3 rotates, the baffles 5 rotate synchronously through each tube bundle 2. Since the fixed shaft 18 and the reciprocating screw 19 are fixed, the baffles 5 also move up and down along the outside of the reciprocating screw 19 when rotating. In this process, the height of the steam flow between two adjacent baffles 5 is changed, avoiding the problem of steam easily forming eddies and accumulating for a long time at the corners of the baffles 5. This further avoids the problem of reduced condensation efficiency due to steam accumulation occupying the condensation area.

[0056] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of the invention. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principles of the invention, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method described in the application is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art. The above description only illustrates certain exemplary embodiments of the invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of this invention.

[0057] In the description of this invention, it should be understood that the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. An energy-saving stainless steel shell-and-tube condenser, comprising a shell and multiple sets of tubes, characterized in that, Also includes: The upper tube sheet is rotatably connected to the inside of the housing, and a partition is fixed inside the housing, with the partition located above the upper tube sheet; The lower tube sheet is rotatably connected inside the housing and located below the upper tube sheet. Multiple tube bundles are installed inside the upper and lower tube sheets. Multiple baffles are provided, and the baffles are slidably sleeved on the outside of multiple tube bundles. The multiple baffles are arranged sequentially from top to bottom and are staggered with each other. A drive mechanism, which is mounted on the housing, is used to drive the upper tube sheet to rotate; the drive mechanism includes an external gear ring fixedly sleeved on the outside of the upper tube sheet and a motor mounted on the top outer wall of the other side of the housing; the output end of the motor is fixedly connected to a first gear, which meshes with the external gear ring; The first adjustment mechanism is installed inside the housing and is used to drive the tube bundle to rotate. Multiple sets of tube bundles are distributed sequentially from the inside to the outside. Each set of tube bundles includes multiple tube bundles, and the multiple tube bundles in the same set are evenly distributed in a circular trajectory. The first adjustment mechanism is provided in multiple sets, and each set of first adjustment mechanisms is connected to multiple sets of tube bundles. The first adjustment mechanism includes an internal gear ring fixed to the bottom of the partition and a second gear fixedly sleeved on the outside of the tube bundle. The internal gear ring meshes with the second gear. The second adjustment mechanism is installed inside the housing and is used to drive the baffles to rise and fall. The second adjustment mechanism includes a fixed shaft fixed to the center inside the housing and multiple reciprocating screws fixedly sleeved outside the fixed shaft. The multiple reciprocating screws are arranged sequentially along the height direction of the fixed shaft. Multiple baffles are respectively screwed to the outside of the multiple reciprocating screws. The fixed shaft is arranged sequentially through the upper tube sheet and the lower tube sheet and is rotatably connected to the upper tube sheet and the lower tube sheet respectively.

2. An energy-saving stainless steel shell-and-tube condenser according to claim 1, characterized in that, A steam inlet pipe and a coolant outlet pipe are respectively installed on the top of one side of the shell, with the coolant outlet pipe and the steam inlet pipe located above and below the upper tube sheet, respectively. On the other side of the casing, at the bottom, there are condensate drain pipe and coolant inlet pipe, which are located below and above the lower tube sheet, respectively.

3. An energy-saving stainless steel shell-and-tube condenser according to claim 2, characterized in that, The internal rotating connection of the partition has multiple sealing rings, which are concentrically arranged and correspond to multiple sets of tube bundles respectively. Multiple tube bundles in the same group are all installed through the sealing ring and are rotatably connected to the sealing ring; Multiple fixing rods are fixed to the top of the partition, and the top of the fixing rods is fixed to the inner wall of the top of the housing. The fixing rods are located between two adjacent sealing rings; the internal gear ring is located directly below the fixing rods.

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