Energy-saving stainless steel shell and tube condenser

Abstract

The invention discloses an energy-saving stainless steel shell and tube condenser, which relates to the technical field of condensers, and comprises a shell, a plurality of groups of tube bundles, an upper tube plate, a lower tube plate and a lower tube plate, a lower tube plate; a baffle plate; the driving mechanism is used for driving the upper tube plate to rotate; the first adjusting mechanism is used for driving the tube bundle to rotate; the second adjusting mechanism is used for driving the baffle plate to lift; by changing the flowing path of steam in the shell, the temperature difference of areas with the same height in the shell is reduced, the stability of pressure in the shell is improved, the incident flow surface of the tube bundle is kept to be changed by driving the tube bundle to rotate, and the problem that the incident flow surface of the tube bundle is not changed, so that uniform cooling of the steam by cooling liquid in the tube bundle is affected is solved; the use effect of the cooling liquid is improved, the problem that steam easily forms vortex at the corners of the baffle plates and is gathered for a long time is solved by changing the circulating height of the steam between the two adjacent baffle plates, and the problem that the condensation efficiency is reduced due to the fact that the condensation area is occupied by steam gathering is solved.

Description

Technical Field

[0001] The invention relates to the technical field of condensers, and in particular to an energy-saving stainless steel tube-in-tube condenser. Background Art

[0002] Condensers are often used in chemical production at present. The main function of the condenser is to properly cool the gas to make it liquid.

[0003] In the prior art, the position of the baffle is fixed, so the flow path of the steam inside the condenser is unchanged, resulting in a large temperature difference between the gas inlet and outlet areas at the same height inside the shell, affecting the stability of the pressure inside the shell; secondly, the position of the tube bundle is also fixed, so the temperature of the frontal surface of the coolant at the same height inside the tube bundle is higher than the temperature of its rear surface, affecting the utilization rate of the coolant; in addition, the steam is prone to form vortices at the corners of the baffles, resulting in long-term aggregation, which in turn easily leads to a decrease in condensation efficiency due to the steam aggregation occupying the condensation area. Summary of the invention

[0004] The object of the present invention is to provide an energy-saving stainless steel shell-and-tube condenser to solve the problem that the position of the baffle in the prior art is fixed, so the flow path of the steam inside the condenser is unchanged, resulting in a large temperature difference between the gas inlet and outlet areas at the same height inside the shell, affecting the stability of the pressure inside the shell, and the position of the tube bundle is also fixed, so the temperature of the flow surface of the coolant at the same height inside the tube bundle is higher than the temperature of its back flow surface, affecting the utilization rate of the coolant, and the steam is prone to form vortices at the corners of the baffles, resulting in long-term aggregation, and then the condensation efficiency is easily reduced due to the steam aggregation occupying the condensation area.

[0005] In order to achieve the above object, the present invention provides the following technical solution: an energy-saving stainless steel tube-in-tube condenser, comprising a shell and a plurality of tube bundles, and further comprising: an upper tube plate rotatably connected to the interior of the shell; A lower tube plate is rotatably connected to the inside of the shell and is located below the upper tube plate, and a plurality of tube bundles are installed inside the upper tube plate and the lower tube plate; A plurality of baffles are provided, wherein the baffles are slidably sleeved outside the plurality of tube bundles, and the plurality of baffles are arranged sequentially from top to bottom and are staggered with each other; A driving mechanism, which is mounted on the housing and is used to drive the upper tube plate to rotate; A first adjustment mechanism, which is installed inside the shell and is used to drive the tube bundle to rotate; The second adjusting mechanism is installed inside the shell and is used to drive the baffle to rise and fall.

[0006] Furthermore, a steam inlet pipe and a coolant discharge pipe are respectively installed on the top of one side of the shell, and the coolant discharge pipe and the steam inlet pipe are respectively located above and below the upper tube plate; A condensate discharge pipe and a coolant introduction pipe are respectively installed at the bottom of the other side of the shell, and the coolant introduction pipe and the condensate discharge pipe are respectively located below and above the lower tube plate.

[0007] Further, the driving mechanism includes an outer gear ring fixedly sleeved on the outside of the upper tube plate and a motor mounted on the top outer wall on the other side of the shell; The output end of the motor is fixedly connected with a first gear, and the first gear is meshed with the outer gear ring.

[0008] Furthermore, a partition is fixedly connected to the interior of the shell, and the partition is located above the upper tube plate.

[0009] Furthermore, the multiple groups of tube bundles are distributed sequentially from the inside to the outside, the same group of tube bundles includes multiple tube bundles, and the multiple tube bundles in the same group are evenly distributed in a circular trajectory.

[0010] Furthermore, the first regulating mechanism is provided with a plurality of groups, and the plurality of groups of the first regulating mechanism are respectively connected to the plurality of groups of tube bundles; The first adjustment mechanism comprises an inner gear ring fixedly connected to the bottom of the partition plate and a second gear fixedly sleeved on the outside of the tube bundle, and the inner gear ring is meshed with the second gear.

[0011] Furthermore, a plurality of sealing rings are rotatably connected inside the partition, the plurality of sealing rings are concentrically arranged, and the plurality of sealing rings respectively correspond to the plurality of tube bundles; Multiple tube bundles in the same group are all arranged through the sealing ring and are rotatably connected to the sealing ring; A plurality of fixing rods are fixedly connected to the top of the partition, the top ends of the fixing rods are fixedly connected to the inner wall of the top of the shell, and the fixing rods are located between two adjacent sealing rings; The inner gear ring is located just below the fixing rod.

[0012] Furthermore, the second adjustment mechanism includes a fixed shaft fixedly connected to the center of the housing and a plurality of reciprocating screws fixedly sleeved on the outside of the fixed shaft; The plurality of reciprocating screws are arranged in sequence along the height direction of the fixed shaft; The plurality of baffles are respectively screwed to the outside of the plurality of reciprocating screws; The fixed shaft is sequentially arranged to penetrate the upper tube plate and the lower tube plate, and is rotatably connected to the upper tube plate and the lower tube plate respectively.

[0013] Compared with the prior art, the energy-saving stainless steel tube-in-tube condenser provided by the present invention has the following beneficial effects: 1. By driving the upper tube sheet to rotate and connecting the tube bundle, the lower tube sheet and the baffle rotate synchronously, changing the flow path of steam inside the shell, reducing the temperature difference of 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; 2. When the upper tube plate rotates, it synchronously drives the tube bundle to rotate, so that the flow surface of the tube bundle remains unchanged, avoiding the problem of the coolant inside the tube bundle affecting the uniform cooling of the steam due to the unchanged flow surface of the tube bundle, thereby improving the use effect of the coolant; 3. When the upper tube plate rotates, the baffles are driven to rotate synchronously through the tube bundles. Since the fixed shaft and the reciprocating screw are fixed, the baffles also move back and forth up and down along the outside of the reciprocating screw when rotating. In this process, the height of the steam flowing between two adjacent baffles is changed, avoiding the problem of steam easily forming vortices and gathering for a long time at the corners of the baffles, and further avoiding the problem of reduced condensation efficiency due to steam accumulation occupying the condensation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 It is a schematic diagram of the driving mechanism and the partition structure of the present invention; Figure 4 It is a schematic diagram of the first adjustment mechanism and the partition structure of the present invention; Figure 5 It is a schematic diagram of the tube bundle and baffle structure of the present invention; Figure 6 It is a schematic diagram of the structure of the second adjustment mechanism of the present invention.

[0016] Description of reference numerals: 1. Shell; 2. Tube bundle; 3. Upper tube sheet; 4. Lower tube sheet; 5. Baffle; 6. Steam inlet pipe; 7. Coolant discharge pipe; 8. Condensate discharge pipe; 9. Coolant inlet pipe; 10. Outer gear ring; 11. Motor; 12. First gear; 13. Partition; 14. Inner gear ring; 15. Second gear; 16. Sealing ring; 17. Fixed rod; 18. Fixed shaft; 19. Reciprocating screw. DETAILED DESCRIPTION

[0017] In order 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.

[0018] Example: See Figure 1 - Figure 6 An energy-saving stainless steel tube-in-tube condenser comprises a shell 1 and a plurality of tube bundles 2, the plurality of tube bundles 2 are sequentially distributed from the inside to the outside, the same tube bundle 2 comprises a plurality of tube bundles 2, and the plurality of tube bundles 2 in the same group are evenly distributed in a circular track, a steam inlet pipe 6 and a coolant discharge pipe 7 are respectively installed on the top of one side of the shell 1, and the coolant discharge pipe 7 and the steam inlet pipe 6 are respectively located above and below the upper tube plate 3; a condensate discharge 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 discharge pipe 8 are respectively located below and above the lower tube plate 4; The coolant is injected into the shell 1 through the coolant introduction pipe 9, which is also below the lower tube plate 4. The coolant then enters the inside of each tube bundle 2 and flows from bottom to top, reaches the top of the partition 13, and is discharged through the coolant discharge pipe 7. The steam enters the shell 1 through the steam introduction pipe 6 and moves from top to bottom along the baffles 5 in a curve. In this process, the steam is cooled down by each tube bundle 2, and the steam is condensed into water, flows downward, and is discharged through the condensed water discharge pipe 8. Among them, the coolant flows from bottom to top, so the coolant temperature in the upper area of ​​the tube bundle 2 is higher than the coolant temperature in the lower area; the steam flows from top to bottom, so the temperature in the upper area inside the shell 1 is higher than the temperature in the lower area. Therefore, when the steam is introduced into the shell 1, it contacts the upper area of ​​the tube bundle 2. The temperature of the upper area of ​​the tube bundle 2 is relatively high, so the temperature difference with the steam is relatively small, which plays a role in protecting the tube bundle 2.

[0019] Also includes: An upper tube plate 3, which is rotatably connected to the interior of the housing 1; The lower tube sheet 4 is rotatably connected to the inside of the shell 1 and is located below the upper tube sheet 3. The multiple tube bundles 2 are installed inside the upper tube sheet 3 and the lower tube sheet 4. The baffles 5 are provided in plurality, and the baffles 5 are slidably sleeved outside the plurality of tube bundles 2. The plurality of baffles 5 are arranged sequentially from top to bottom and are arranged staggered with each other. The top of the baffles 5 can be set as an inclined surface and is inclined downwardly toward one side of the notch of the baffles 5 to facilitate the flow of condensed water. A driving mechanism is mounted on the housing 1 and is used to drive the upper tube plate 3 to rotate. The driving mechanism includes an outer gear ring 10 fixedly sleeved on the outer side of the upper tube plate 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 is meshed with the outer gear ring 10; The first gear 12 is driven to rotate at a low speed by controlling the motor 11, and the upper tube sheet 3 is driven to rotate through the meshing effect between the first gear 12 and the outer gear ring 10. The lower tube sheet 4 and the baffle 5 are rotated synchronously through the connection effect of the tube bundle 2, thereby changing the flow path of the steam inside the shell 1.

[0020] The first adjustment mechanism is installed inside the shell 1 and is used to drive the tube bundle 2 to rotate. A partition 13 is fixed inside the shell 1. The partition 13 is located above the upper tube plate 3. The first adjustment mechanism is provided with multiple groups, and the multiple groups of first adjustment mechanisms are respectively connected to the multiple groups of tube bundles 2; the first adjustment mechanism includes an inner gear ring 14 fixed to the bottom of the partition 13 and a second gear 15 fixedly sleeved on the outside of the tube bundle 2, the inner gear ring 14 is meshed with the second gear 15, and the partition 13 is internally rotatably connected with multiple sealing rings 16, and the multiple sealing rings 16 are concentrically arranged. The plurality of sealing rings 16 are respectively corresponding to the plurality of tube bundles 2; the plurality of tube bundles 2 in the same group are all penetrated by the sealing rings 16 and are rotatably connected to the sealing rings 16; the top of the partition plate 13 is fixedly connected with a plurality of fixing rods 17, the top of the fixing rods 17 is fixedly connected with the inner wall of the top of the shell 1, and the fixing rods 17 are located between two adjacent sealing rings 16; the inner gear rings 14 are located directly below the fixing rods 17, so that the fixing of each inner gear ring 14 is realized, that is, when the upper tube plate 3 and the tube bundle 2 rotate, the inner gear ring 14 will not rotate accordingly; When the upper tube plate 3 rotates, it drives each tube bundle 2 to perform an orbital motion around the fixed shaft 18, and through the meshing effect between each second gear 15 and the inner gear ring 14, the tube bundle 2 is driven to rotate, so that the front surface of the tube bundle 2, that is, the side facing the steam flow direction, keeps changing, avoiding the problem of affecting the uniform cooling of the steam by the coolant inside the tube bundle 2 due to the unchanged front surface of the tube bundle 2, thereby improving the use effect of the coolant.

[0021] The second adjustment mechanism is installed inside the shell 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 of the shell 1 and a plurality of reciprocating screws 19 fixedly sleeved on the outside of the fixed shaft 18; the plurality of reciprocating screws 19 are sequentially arranged along the height direction of the fixed shaft 18; the plurality of baffles 5 are respectively screwed on the outside of the plurality of reciprocating screws 19; the fixed shaft 18 is sequentially arranged to penetrate 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; When the upper tube plate 3 rotates, the baffles 5 are driven to rotate synchronously through the tube bundles 2. Since the fixed shaft 18 and the reciprocating screw 19 are fixed, the baffles 5 also move back and forth up and down along the outside of the reciprocating screw 19 when rotating. In this process, the height of the steam flowing between two adjacent baffles 5 is changed, thereby avoiding the problem of steam easily forming vortices at the corners of the baffles 5 and gathering for a long time, and further avoiding the problem of reduced condensation efficiency due to steam gathering and occupying the condensation area.

[0022] Working principle: When in use, the coolant is injected into the shell 1 through the coolant inlet pipe 9, which is also below the lower tube plate 4. The coolant then enters the inside of each tube bundle 2 and flows from bottom to top, reaches the top of the partition 13, and is discharged through the coolant discharge pipe 7. The steam enters the shell 1 through the steam inlet pipe 6 and moves from top to bottom along the baffles 5 in a curve. In this process, the steam is cooled and cooled by each tube bundle 2, and the steam condenses into water, flows downward, and is discharged through the condensate discharge pipe 8. During the condensation process, the first gear 12 is driven to rotate at a low speed by the control motor 11, and the upper tube plate 3 is driven to rotate through the meshing effect between the first gear 12 and the outer gear ring 10. Through the connection effect of the tube bundle 2, the lower tube plate 4 and the baffle 5 are rotated synchronously, changing the flow path of the steam inside the shell 1, and when the upper tube plate 3 rotates, it drives each tube bundle 2 to be fixed The shaft 18 revolves around the tube bundle 2, and the meshing between the second gears 15 and the inner gear ring 14 drives the tube bundle 2 to rotate, so that the frontal surface of the tube bundle 2, that is, the side facing the steam flow direction, remains variable, thereby avoiding the problem of uniform cooling of the steam by the internal coolant due to the unchanged frontal surface of the tube bundle 2, thereby improving the use effect of the coolant. At the same time, when the upper tube plate 3 rotates, the baffles 5 are driven to rotate synchronously through the tube bundles 2. Since the fixed shaft 18 and the reciprocating screw 19 are fixed, the baffles 5 also reciprocate up and down along the outside of the reciprocating screw 19 when rotating. In this process, the height of the steam flowing between the two adjacent baffles 5 is changed, thereby avoiding the problem of steam easily forming vortices at the corners of the baffles 5 and gathering for a long time, and further avoiding the problem of reduced condensation efficiency due to steam gathering and occupying the condensation area.

[0023] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in the field understand the principle of the above invention, the specific details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is to automatically control by a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in the field; the above only describes some exemplary embodiments of the present invention by way of explanation. Undoubtedly, for ordinary technicians in the field, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present 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 the present invention.

[0024] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. An energy-saving stainless steel tube-in-tube condenser, comprising a shell (1) and a plurality of tube bundles (2), characterized in that: Also includes: An upper tube plate (3) rotatably connected to the interior of the housing (1); a lower tube plate (4) which is rotatably connected to the interior of the shell (1) and is located below the upper tube plate (3), wherein the plurality of tube bundles (2) are installed inside the upper tube plate (3) and the lower tube plate (4); A baffle (5), wherein a plurality of baffles (5) are provided, wherein the baffles (5) are slidably sleeved outside the plurality of tube bundles (2), and the plurality of baffles (5) are arranged in sequence from top to bottom and are arranged in an interlaced manner; A driving mechanism, which is mounted on the housing (1) and is used to drive the upper tube plate (3) to rotate; A first adjustment mechanism, which is installed inside the shell (1) and is used to drive the tube bundle (2) to rotate; The second adjustment mechanism is installed inside the shell (1) and is used to drive the baffle plate (5) to rise and fall.

2. The energy-saving stainless steel tube-in-tube condenser according to claim 1, characterized in that: A steam inlet pipe (6) and a coolant discharge pipe (7) are respectively installed on the top of one side of the shell (1), and the coolant discharge pipe (7) and the steam inlet pipe (6) are respectively located above and below the upper tube plate (3); A condensate discharge pipe (8) and a coolant inlet pipe (9) are respectively installed at the bottom of the other side of the shell (1), and the coolant inlet pipe (9) and the condensate discharge pipe (8) are respectively located below and above the lower tube plate (4).

3. The energy-saving stainless steel tube-in-tube condenser according to claim 2, characterized in that: The driving mechanism comprises an outer gear ring (10) fixedly sleeved on the outside of the upper tube plate (3) and a motor (11) mounted on the top outer wall of the other side of the housing (1); The output end of the motor (11) is fixedly connected to a first gear (12), and the first gear (12) is meshed with the outer gear ring (10).

4. The energy-saving stainless steel tube-in-tube condenser according to claim 3, characterized in that: A partition plate (13) is fixedly connected to the interior of the shell (1), and the partition plate (13) is located above the upper tube plate (3).

5. The energy-saving stainless steel tube-in-tube condenser according to claim 4, characterized in that: The multiple groups of tube bundles (2) are distributed in sequence from the inside to the outside, the same group of tube bundles (2) includes multiple tube bundles (2), and the multiple tube bundles (2) in the same group are evenly distributed in a circular trajectory.

6. The energy-saving stainless steel tube-in-tube condenser according to claim 5, characterized in that: The first regulating mechanism is provided with a plurality of groups, and the plurality of groups of the first regulating mechanism are respectively connected to the plurality of groups of tube bundles (2); The first adjustment mechanism comprises an inner gear ring (14) fixedly connected to the bottom of the partition plate (13) and a second gear (15) fixedly sleeved on the outside of the tube bundle (2), and the inner gear ring (14) is meshed with the second gear (15).

7. The energy-saving stainless steel tube-in-tube condenser according to claim 6, characterized in that: A plurality of sealing rings (16) are rotatably connected inside the partition (13), the plurality of sealing rings (16) are concentrically arranged, and the plurality of sealing rings (16) respectively correspond to the plurality of tube bundles (2); The multiple tube bundles (2) in the same group are all arranged through the sealing ring (16) and are all rotatably connected to the sealing ring (16); A plurality of fixing rods (17) are fixedly connected to the top of the partition plate (13), the top ends 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 inner gear ring (14) is located directly below the fixing rod (17).

8. The energy-saving stainless steel tube-in-tube condenser according to claim 7, characterized in that: The second adjustment mechanism comprises a fixed shaft (18) fixedly connected to the center of the interior of the housing (1) and a plurality of reciprocating screws (19) fixedly sleeved on the exterior of the fixed shaft (18); The plurality of reciprocating screws (19) are arranged in sequence along the height direction of the fixed shaft (18); The plurality of baffles (5) are respectively screwed onto the outside of the plurality of reciprocating screws (19); The fixed shaft (18) is sequentially arranged to penetrate the upper tube plate (3) and the lower tube plate (4), and is rotatably connected to the upper tube plate (3) and the lower tube plate (4), respectively.

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