Shell and tube heat exchanger easy to clean

Abstract

The present application discloses a shell and tube heat exchanger that is easy to clean, belonging to the technical field of heat exchangers, and includes a shell, a hydraulic cylinder, a push rod, and a clamping mechanism; a front cover is detachably mounted on one end of the shell, a rear cover is detachably mounted on the other end of the shell, and a tube bundle mechanism is mounted on the inner wall of the front cover; there are multiple groups of hydraulic cylinders, multiple groups of hydraulic cylinders are mounted in annular arrays on the outer side wall of the shell, the telescopic ends of the hydraulic cylinders are fixedly connected to the outer wall of the front cover, and the hydraulic cylinders are used to drive the front cover to move on the horizontal axis of the shell; there are multiple push rods; multiple push rods are arranged in parallel with the hydraulic cylinders, and one end of the push rods is fixedly connected to the outer wall of the front cover; there are multiple clamping mechanisms, the clamping mechanisms are fixedly mounted on the outer side wall of the rear cover, and the clamping mechanisms correspond to the push rods one by one. The present application improves the convenience of cleaning the inside of the shell and tube heat exchanger.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a shell and tube heat exchanger that is easy to clean. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used. Shell and tube heat exchanger is a kind of heat exchanger. After long-term use, a lot of stains are attached to the internal heat exchange tube bundle and the inner wall of the shell, and it needs to be cleaned regularly.

[0003] After searching, the Chinese patent announcement number is: CN211552533U, which discloses a shell and tube heat exchanger that is easy to clean, belonging to the technical field of heat exchange equipment, including an upper shell, a lower shell, a front cover, a rear cover, a fixed base and two clamping parts. It can be separated from the upper shell and the lower shell by manually rotating the front cover and the rear cover, and then loosening the two clamping parts to separate the upper shell from the lower shell, so that the heat exchange tube can be taken out for cleaning, and the entire heat exchanger can be easily disassembled and assembled, reducing the difficulty of cleaning.

[0004] However, in the process of cleaning the interior of the heat exchanger, not only the front cover and the rear cover need to be disassembled, but also the upper shell and the lower shell need to be disassembled. The whole disassembly and assembly process is very cumbersome, which increases the manpower and time required for cleaning and is inconvenient to operate. Utility Model Content

[0005] One of the purposes of the present application is to improve the convenience of cleaning the inside of a shell and tube heat exchanger and to provide a shell and tube heat exchanger that is easy to clean.

[0006] To achieve the above objectives, the technical solution adopted in the present application is: a shell and tube heat exchanger that is easy to clean, comprising a shell, a hydraulic cylinder, a push rod and a clamping mechanism; a front cover is detachably mounted on one end of the shell, a rear cover is detachably mounted on the other end of the shell, and a tube bundle mechanism is mounted on the inner wall of the front cover; there are multiple groups of hydraulic cylinders, multiple groups of hydraulic cylinders are mounted in an annular array on the outer side wall of the shell, the telescopic end of the hydraulic cylinder is fixedly connected to the outer wall of the front cover, and the hydraulic cylinder is used to drive the front cover to move on the horizontal axis of the shell; there are multiple push rods; multiple push rods are arranged in parallel with the hydraulic cylinder, and one end of the push rod is fixedly connected to the outer wall of the front cover; there are multiple groups of clamping mechanisms, the clamping mechanisms are fixedly mounted on the outer side wall of the rear cover, and the clamping mechanisms correspond to the push rods one by one; when the hydraulic cylinder is in a retracted state, one end of the push rod limits the clamping mechanism; when the hydraulic cylinder is in an extended state, one end of the push rod releases the limit of the clamping mechanism.

[0007] Preferably, a plurality of limit grooves are provided on the circumferential outer wall of the shell near one end of the rear cover, and the limit grooves correspond one-to-one to the clamping mechanism, and the limit groove is an "L"-shaped mechanism, and the clamping mechanism includes a support rod and a limit block, and the support rod and the limit block are both located in the limit groove, one end of the support rod is rotatably connected to the outer wall of one end of the rear cover, and the limit block is fixedly connected to the other end of the support rod, and the limit block is clamped and adapted to the "L"-shaped folding position of the limit groove; when the hydraulic cylinder is in a retracted state, one end of the push rod is sealed with the limit groove; when the hydraulic cylinder is in an extended state, one end of the push rod is separated from the limit groove.

[0008] Preferably, blocks are fixedly mounted on the outer wall of the housing at both sides of the limiting groove; when the hydraulic cylinder is in the retracted state, both sides of the push rod are limited between the two blocks.

[0009] Preferably, the tube bundle mechanism includes a tube bundle assembly, a first mounting ring and a second mounting ring, there are two first mounting rings, the two first mounting rings are respectively fixedly sleeved on both ends of the tube bundle assembly, there are two second mounting rings, the second mounting rings are rotatably mounted on the outer wall of the first mounting ring, one of the second mounting rings is fixedly connected to the inner wall of the front cover, and a plurality of connecting rods distributed in a ring array are fixedly mounted between the two second mounting rings.

[0010] Preferably, a horizontally arranged mounting groove is opened at the top of the inner wall of the shell, and a toothed plate is fixedly installed on the inner wall of the mounting groove, a linkage mechanism is installed on the second mounting ring near one end of the rear cover, and a toothed ring is fixedly installed on the circumferential outer wall of the first mounting ring near one end of the rear cover; during the extension of the hydraulic cylinder, the toothed plate drives the toothed ring to rotate through the linkage mechanism.

[0011] Preferably, the linkage mechanism includes a support block, a first rotating rod, a first gear, a first bevel gear, a second rotating rod, a second bevel gear and a second gear; the support block is fixedly mounted on one end of the second mounting ring, the second rotating rod is rotatably mounted on one end of the second mounting ring close to the support block, the second bevel gear is fixedly sleeved on the middle part of the circumference of the second rotating rod, the second gear is fixedly mounted on one end of the second rotating rod, the first rotating rod is rotatably mounted on one side of the support block, the first rotating rod is arranged perpendicular to the second rotating rod, the first gear is fixedly sleeved on the outside of the first rotating rod, the first bevel gear is fixedly mounted on one end of the first rotating rod, the first bevel gear is meshed with the second bevel gear, the first gear is meshed with the tooth plate, and the second gear is meshed with the gear ring.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) The utility model is provided with a front cover, a rear cover, a push rod, a hydraulic cylinder and a clamping mechanism. The hydraulic cylinder drives the front cover to move so that the front cover is separated from the shell body. The front cover pulls the entire tube bundle mechanism out of the shell body, so that the tube bundle mechanism can be conveniently and comprehensively cleaned. When the front cover drives the push rod to move, the push rod is separated from the clamping mechanism. At this time, the restriction on the clamping mechanism can be directly released, and the rear cover can be directly opened to clean the inside of the shell body from the end of the shell body close to the rear cover. The entire cleaning operation is very convenient.

[0014] (2) The utility model is provided with a toothed plate, a toothed ring and a linkage mechanism. When the hydraulic cylinder is extended, the front cover will be driven to move. At this time, the first gear will rotate along the toothed plate, thereby driving the first rotating rod, the first bevel gear, the second bevel gear, the second rotating rod and the second gear to rotate in sequence, and finally driving the toothed ring to rotate, thereby driving the first mounting ring and the tube bundle assembly to rotate. In the process of the tube bundle assembly being pulled out of the shell, the tube bundle assembly can be cleaned while rotating, thereby improving the adequacy of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a diagram of the hydraulic cylinder of the utility model in an extended state.

[0017] Figure 3 It is an enlarged view of point A of the present utility model.

[0018] Figure 4 It is a schematic diagram of the tube bundle mechanism of the utility model.

[0019] Figure 5 It is a schematic diagram of the linkage mechanism of the utility model.

[0020] Figure 6 It is an enlarged view of point B of the present utility model.

[0021] Figure 7 It is an enlarged view of point C of the present utility model.

[0022] In the figure: 1. shell; 2. front cover; 3. rear cover; 4. hydraulic cylinder; 5. push rod; 6. tube bundle assembly; 601. first mounting ring; 602. second mounting ring; 7. support rod; 701. limit block; 702. stop block; 703. limit groove; 8. tooth plate; 801. support block; 802. first gear; 803. gear ring; 804. first rotating rod; 805. first bevel gear; 806. second rotating rod; 807. second bevel gear; 808. second gear; 9. connecting rod. DETAILED DESCRIPTION

[0023] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0026] One of the preferred embodiments of the present application is as follows: Figures 1 to 7As shown, a shell and tube heat exchanger that is easy to clean includes a shell 1, a hydraulic cylinder 4, a push rod 5 and a clamping mechanism; a front cover 2 is detachably installed at one end of the shell 1, a rear cover 3 is detachably installed at the other end of the shell 1, and a tube bundle mechanism is installed on the inner wall of the front cover 2; there are multiple groups of hydraulic cylinders 4, and multiple groups of hydraulic cylinders 4 are installed in a circular array on the outer side wall of the shell 1, and the telescopic ends of the hydraulic cylinders 4 are fixedly connected to the outer wall of the front cover 2, and the hydraulic cylinders 4 are used to drive the front cover 2 to move on the horizontal axis of the shell 1; there are multiple push rods 5; multiple push rods 5 are arranged in parallel with the hydraulic cylinder 4, and one end of the push rod 5 is fixedly connected to the outer wall of the front cover 2; there are multiple groups of clamping mechanisms, and the clamping mechanisms are fixedly installed on the outer side wall of the rear cover 3, and the clamping mechanisms correspond to the push rods 5 one by one; when the hydraulic cylinder 4 is in a retracted state, one end of the push rod 5 limits the clamping mechanism; when the hydraulic cylinder 4 is in an extended state, one end of the push rod 5 releases the limit of the clamping mechanism.

[0027] It can be understood that when it is necessary to clean the inside of the shell 1, the hydraulic cylinder 4 drives the front cover 2 to move, so that the front cover 2 is separated from the shell 1, and the front cover 2 pulls the entire tube bundle mechanism out of the shell 1, so that the tube bundle mechanism can be conveniently and comprehensively cleaned; when the front cover 2 drives the push rod 5 to move, the push rod 5 is separated from the clamping mechanism, and the restriction on the clamping mechanism can be directly released at this time, so that the rear cover 3 can be directly opened, and the inside of the shell 1 can be cleaned from the end of the shell 1 close to the rear cover 3, and the entire cleaning operation is very convenient.

[0028] In this embodiment, Figures 1 to 3 As shown, a plurality of limit grooves 703 are provided on the circumferential outer wall of the shell 1 near one end of the rear cover 3, and the limit grooves 703 correspond to the clamping mechanism one by one, and the limit grooves 703 are "L"-shaped mechanisms, and the clamping mechanism includes a support rod 7 and a limit block 701, and the support rod 7 and the limit block 701 are both located in the limit groove 703, one end of the support rod 7 is rotatably connected to the outer wall of one end of the rear cover 3, and the limit block 701 is fixedly connected to the other end of the support rod 7, and the limit block 701 is clamped and adapted to the "L"-shaped folding position of the limit groove 703; when the hydraulic cylinder 4 is in the contracted state, one end of the push rod 5 is sealed with the limit groove 703; when the hydraulic cylinder 4 is in the extended state, one end of the push rod 5 is separated from the limit groove 703.

[0029] It can be understood that when it is necessary to clean the inside of the shell 1, the hydraulic cylinder 4 drives the front cover 2 to move and separate the front cover 2 from the shell 1. At this time, the push rod 5 is separated from the limit groove 703, and then the limit block 701 and the support rod 7 can be rotated to separate the limit block 701 from the "L"-shaped folding position of the limit groove 703, and then the rear cover 3 can be directly removed to clean the inside of the shell 1 from the end of the shell 1 close to the rear cover 3.

[0030] In this embodiment, Figures 2 to 3As shown, the outer wall of the housing 1 is fixedly mounted with stoppers 702 at both sides of the limiting groove 703 ; when the hydraulic cylinder 4 is in the contracted state, both sides of the push rod 5 are limited between the two stoppers 702 .

[0031] It can be understood that when the shell 1 is in a sealed state, one end of the push rod 5 is limited by two blocks 702, so that the push rod 5 can stably seal the limiting groove 703, thereby preventing the limiting block 701 from disengaging from the limiting groove 703, so that the back cover 3 can be stably fixed on the shell 1.

[0032] In this embodiment, Figures 4 to 5 As shown, the tube bundle mechanism includes a tube bundle assembly 6, a first mounting ring 601 and a second mounting ring 602. There are two first mounting rings 601, which are respectively fixedly sleeved on both ends of the tube bundle assembly 6. There are two second mounting rings 602, which are rotatably mounted on the outer wall of the first mounting ring 601. One of the second mounting rings 602 is fixedly connected to the inner wall of the front cover 2, and a plurality of connecting rods 9 distributed in a ring array are fixedly mounted between the two second mounting rings 602.

[0033] It is understandable that after the entire tube bundle mechanism is pulled out from the shell 1 , the first mounting ring 601 can be rotated to drive the tube bundle assembly 6 to rotate, thereby improving the convenience and adequacy of cleaning the tube bundle assembly 6 .

[0034] In this embodiment, Figures 1 to 7 As shown, a horizontally arranged mounting groove is provided at the top of the inner wall of the shell 1, and a toothed plate 8 is fixedly installed on the inner wall of the mounting groove, a linkage mechanism is installed on the second mounting ring 602 near one end of the rear cover 3, and a toothed ring 803 is fixedly installed on the circumferential outer wall of the first mounting ring 601 near one end of the rear cover 3; during the extension process of the hydraulic cylinder 4, the toothed plate 8 drives the toothed ring 803 to rotate through the linkage mechanism. The linkage mechanism includes a support block 801, a first rotating rod 804, a first gear 802, a first bevel gear 805, a second rotating rod 806, a second bevel gear 807 and a second gear 808; the support block 801 is fixedly installed on one end of the second mounting ring 602, the second rotating rod 806 is rotatably installed on one end of the second mounting ring 602 close to the support block 801, the second bevel gear 807 is fixedly sleeved on the middle part of the circumference of the second rotating rod 806, the second gear 808 is fixedly installed on one end of the second rotating rod 806, the first rotating rod 804 is rotatably installed on one side of the support block 801, the first rotating rod 804 is arranged perpendicular to the second rotating rod 806, the first gear 802 is fixedly sleeved on the outside of the first rotating rod 804, the first bevel gear 805 is fixedly installed on one end of the first rotating rod 804, the first bevel gear 805 is meshed with the second bevel gear 807, the first gear 802 is meshed with the tooth plate 8, and the second gear 808 is meshed with the gear ring 803.

[0035] It can be understood that when the hydraulic cylinder 4 extends, it will drive the front cover 2 to move. At this time, the first gear 802 will rotate along the tooth plate 8, thereby driving the first rotating rod 804, the first bevel gear 805, the second bevel gear 807, the second rotating rod 806 and the second gear 808 to rotate in sequence, and finally driving the gear ring 803 to rotate, thereby driving the first mounting ring 601 and the tube bundle assembly 6 to rotate. In the process of the tube bundle assembly 6 being pulled out of the shell 1, the tube bundle assembly 6 can be cleaned while rotating, thereby improving the adequacy of the cleaning.

[0036] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A shell and tube heat exchanger that is easy to clean, characterized in that: include: A shell (1); a front cover (2) is detachably mounted on one end of the shell (1), a rear cover (3) is detachably mounted on the other end of the shell (1), and a tube bundle mechanism is mounted on the inner wall of the front cover (2); A hydraulic cylinder (4); the hydraulic cylinder (4) comprises a plurality of groups, the plurality of groups of the hydraulic cylinders (4) being mounted in a circular array on the outer wall of the housing (1), the telescopic ends of the hydraulic cylinders (4) being fixedly connected to the outer wall of the front cover (2), and the hydraulic cylinders (4) being used to drive the front cover (2) to move on the horizontal axis of the housing (1); A push rod (5); there are a plurality of push rods (5); the plurality of push rods (5) are arranged in parallel with the hydraulic cylinder (4), and one end of the push rod (5) is fixedly connected to the outer wall of the front cover (2); and A clamping mechanism; the clamping mechanism has multiple groups, the clamping mechanism is fixedly mounted on the outer wall of the rear cover (3), and the clamping mechanism corresponds to the push rod (5) one by one; When the hydraulic cylinder (4) is in a retracted state, one end of the push rod (5) limits the clamping mechanism; when the hydraulic cylinder (4) is in an extended state, one end of the push rod (5) releases the clamping mechanism.

2. The shell and tube heat exchanger that is easy to clean according to claim 1, characterized in that: A plurality of limiting grooves (703) are provided on the circumferential outer wall of the shell (1) close to one end of the rear cover (3), and the limiting grooves (703) correspond to the clamping mechanism one by one. The limiting grooves (703) are in an "L"-shaped structure, and the clamping mechanism comprises a support rod (7) and a limiting block (701). Both the support rod (7) and the limiting block (701) are located in the limiting groove (703), one end of the support rod (7) is rotatably connected to the outer wall of one end of the rear cover (3), and the limiting block (701) is fixedly connected to the other end of the support rod (7), and the limiting block (701) is clamped and adapted to the "L"-shaped folding position of the limiting groove (703); When the hydraulic cylinder (4) is in a retracted state, one end of the push rod (5) is sealed with the limiting groove (703); when the hydraulic cylinder (4) is in an extended state, one end of the push rod (5) is separated from the limiting groove (703).

3. The shell and tube heat exchanger that is easy to clean according to claim 2, characterized in that: Stoppers (702) are fixedly mounted on the outer wall of the housing (1) and at positions on both sides of the limiting groove (703); when the hydraulic cylinder (4) is in a retracted state, both sides of the push rod (5) are limited between the two stoppers (702).

4. The shell and tube heat exchanger that is easy to clean according to claim 1, characterized in that: The tube bundle mechanism comprises a tube bundle assembly (6), a first mounting ring (601) and a second mounting ring (602); there are two first mounting rings (601), which are respectively fixedly sleeved on two ends of the tube bundle assembly (6); there are two second mounting rings (602), which are rotatably mounted on the outer wall of the first mounting ring (601), one of the second mounting rings (602) is fixedly connected to the inner wall of the front cover (2), and a plurality of connecting rods (9) distributed in a ring array are fixedly mounted between the two second mounting rings (602).

5. The shell and tube heat exchanger that is easy to clean according to claim 4, characterized in that: A horizontally arranged mounting groove is provided at the top of the inner wall of the housing (1), and a toothed plate (8) is fixedly mounted on the inner wall of the mounting groove; a linkage mechanism is mounted on the second mounting ring (602) near one end of the rear cover (3); and a toothed ring (803) is fixedly mounted on the circumferential outer wall of the first mounting ring (601) near one end of the rear cover (3); During the extension of the hydraulic cylinder (4), the tooth plate (8) drives the tooth ring (803) to rotate via the linkage mechanism.

6. The shell and tube heat exchanger that is easy to clean according to claim 5, characterized in that: The linkage mechanism comprises a support block (801), a first rotating rod (804), a first gear (802), a first bevel gear (805), a second rotating rod (806), a second bevel gear (807) and a second gear (808); the support block (801) is fixedly mounted on one end of the second mounting ring (602); the second rotating rod (806) is rotatably mounted on one end of the second mounting ring (602) close to the support block (801); the second bevel gear (807) is fixedly sleeved on the middle part of the circumference of the second rotating rod (806); the second gear (808) is fixedly mounted on the One end of the second rotating rod (806), the first rotating rod (804) is rotatably installed on one side of the supporting block (801), the first rotating rod (804) is arranged perpendicular to the second rotating rod (806), the first gear (802) is fixedly sleeved on the outside of the first rotating rod (804), the first bevel gear (805) is fixedly installed on one end of the first rotating rod (804), the first bevel gear (805) is meshed with the second bevel gear (807), the first gear (802) is meshed with the tooth plate (8), and the second gear (808) is meshed with the gear ring (803).

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