Tube bundle fixing device for mixed-flow air cooler

Abstract

The utility model discloses a mixed-flow type air cooler tube bundle fixing device, and belongs to the technical field of air cooler tube bundles. By arranging the fastening mechanism, the two shells can be installed at the connecting position of the air cooler tube bundle body and the water inlet and outlet connecting pipe in a sleeving mode and fix the air cooler tube bundle body, in the using process, when gaps are generated between the air cooler tube bundle body and the shells due to thermal expansion and cold contraction, four sliding rods are pushed, and the air cooler tube bundle body is fixed through the four sliding rods. The sliding rods are guided by the sliding rails to drive the clamps to move until the clamps are attached to the surface of the air cooler tube bundle body, so that the purpose of fastening the air cooler tube bundle body is achieved, and the problems that when the temperature of fluid in the air cooler tube bundle changes remarkably, the tube bundle expands with heat and contracts with cold, and the tube bundle is not firmly fixed and cannot be firmly fixed are solved. The problem that the tube bundles are likely to loosen when the tube bundles are damaged or the connecting pieces between the tube bundles cannot effectively resist the stress caused by the temperature change is solved, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air cooler tube bundles, in particular to a mixed flow air cooler tube bundle fixing device. Background Art

[0002] The air cooler tube bundle is one of the core components of the air cooler. It is mainly composed of many small-diameter steel pipes, which are used to transfer heat from one fluid to another through the heat transfer surface. In the air cooler, the tube bundle usually uses air as the cooling medium, and transfers the heat of the high-temperature medium to the air directly or indirectly, thereby achieving the purpose of cooling. In addition, various types of fins are also provided on the tube bundle, which can increase the heat transfer area and improve the heat transfer efficiency;

[0003] According to the different classifications of air coolers, the arrangement of the tube bundles is also different. For example, the tube bundles of horizontal air coolers are arranged horizontally, while the tube bundles of vertical air coolers are arranged vertically. During the operation of the air cooler, the performance of the tube bundle directly affects the cooling effect and operation efficiency of the entire equipment. However, in actual use, when the fluid temperature in the air cooler tube bundle changes significantly, the tube bundle will expand and contract. When the fixing method of the tube bundle is not strong enough, or the connectors between the tube bundles cannot effectively resist the stress caused by such temperature changes, the tube bundle may become loose. Therefore, when designing the tube bundle, the influence of temperature difference stress on the tube bundle should be fully considered, and a fixing device that can tighten the tube bundle after thermal expansion and contraction should be used. For this reason, we propose a tube bundle fixing device for mixed flow air coolers. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a mixed flow air cooler tube bundle fixing device. Through the fastening mechanism, two shells can be installed on the connection between the air cooler tube bundle body and the inlet and outlet water connecting pipes to fix the air cooler tube bundle body. During use, when a gap is generated between the air cooler tube bundle body and the shells due to thermal expansion and contraction, four sliding bars are pushed so that the sliding bars drive the clamps to move under the guidance of the sliding rails until they fit on the surface of the air cooler tube bundle body, so as to achieve the purpose of fastening the air cooler tube bundle body, avoid thermal expansion and contraction of the tube bundle when the temperature of the fluid in the air cooler tube bundle changes significantly, and when the fixing method of the tube bundle is not firm enough, or the connecting parts between the tube bundles cannot effectively resist the stress caused by such temperature changes, the tube bundle may become loose, thereby improving the stability of the device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a mixed flow air cooler tube bundle fixing device, comprising an air cooler tube bundle body and inlet and outlet water connecting pipes arranged at the ends of both sides of the air cooler tube bundle body, the connection between the air cooler tube bundle body and the two inlet and outlet water connecting pipes is sleeved with a fastening mechanism, the fastening mechanism comprises two annular shells sleeved and fitted at the connection between the air cooler tube bundle body and the inlet and outlet water connecting pipes, and the two shells are connected by a connecting rod, the outer walls of the two shells are connected with a slider, and the outer wall of the slider is slidably sleeved with a sliding mounting seat, and the sliding mounting seat is fixedly assembled on the installation position of the air cooler tube bundle body;

[0006] Four slide rails are equidistantly arranged around the inner wall of the shell, and a slide rod is slidably arranged inside the slide rail. A clamp is fixedly installed on the slide rod near the axis of the shell, and the clamp can be moved until it is tightly fitted with the connection between the air cooler tube bundle body and the inlet and outlet water connecting pipes.

[0007] As a preferred technical solution of the utility model, the position of the clamp is adjusted by a diameter-changing mechanism, which includes an annular limit rail arranged on the inner wall of the shell away from the side of the slide rail, and four limit grooves are slidably embedded on the surface of the limit rail, and gears are connected to the bottom ends of the four limit grooves, and four guide grooves are opened on the surface of the gears, and push rods are arranged inside the guide grooves, which penetrate through and fit into the inner walls of the guide grooves, and the ends of the push rods are connected to the slide rods.

[0008] As a preferred technical solution of the utility model, the four limit grooves are all arranged between two adjacent guide grooves, and the ends of both sides of the limit grooves are terminated after reaching the edge of the guide groove.

[0009] As a preferred technical solution of the utility model, the gear is rotated by an adjusting mechanism, which includes a rotating groove opened on the inner surface of two shells, and a rotating part is rotatably embedded inside the rotating groove, a rotating knob is connected between the two rotating parts, and a plurality of teeth are equidistantly arranged around the inner wall of the rotating knob, and the teeth are all meshed with the gears.

[0010] As a preferred technical solution of the utility model, a plurality of grooves are equidistantly arranged around the outer wall of the knob.

[0011] As a preferred technical solution of the utility model, guide rails are integrally formed on both sides of the inner wall of the sliding mounting seat, and slots corresponding to the positions of the guide rails and capable of being inserted into the guide rails are formed on the outer walls of the two sliding blocks.

[0012] As a preferred technical solution of the utility model, a spring groove is provided on the inner wall of the slider, and a latch is provided through the middle of the spring groove, one end of the spring is connected to the inner wall of the spring groove, and the other end of the spring is connected to the outer wall of the latch;

[0013] The outer wall of the guide rail is provided with an arc-shaped slot, and one end of the latch pin close to the slot is arranged in an arc shape that matches the slot and is inserted into the slot.

[0014] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0015] 1. Through the fastening mechanism, the two shells can be installed on the connection between the air cooler tube bundle body and the inlet and outlet water connecting pipes to fix the air cooler tube bundle body. During use, when the air cooler tube bundle body has a gap with the shell due to thermal expansion and contraction, the four slide bars are pushed to drive the clamp to move under the guidance of the slide rail until it fits on the surface of the air cooler tube bundle body, so as to achieve the purpose of fastening the air cooler tube bundle body, avoiding the thermal expansion and contraction of the tube bundle when the fluid temperature in the air cooler tube bundle changes significantly. When the fixing method of the tube bundle is not firm enough, or the connectors between the tube bundles cannot effectively resist the stress caused by such temperature changes, the tube bundle may become loose, thereby improving the stability of the device;

[0016] 2. Through the variable diameter mechanism, the staff can rotate the gear to drive the limit groove to rotate under the restriction of the limit rail, and drive the guide groove to push the push rod, so that the push rod can drive the slide bar to drive the clamp to move horizontally under the restriction of the slide rail until it fits with the outer wall of the air cooler tube bundle body, thereby achieving synchronous adjustment of the positions of the four clamps, and further improving the stability of the four clamps after reinforcing the air cooler tube bundle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a front view structural schematic diagram of the utility model;

[0019] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at the center;

[0021] Figure 5 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0022] Figure 6 It is a three-dimensional split structure schematic diagram of the fastening mechanism of the utility model;

[0023] Figure 7 It is a partial three-dimensional cross-sectional structural diagram of a clamp in the fastening mechanism of the utility model;

[0024] Figure 8 It is a partial three-dimensional cross-sectional structural schematic diagram of the diameter-changing mechanism of the utility model;

[0025] Fig. 9 It is a partial top view cross-sectional schematic diagram of the adjustment mechanism of the utility model.

[0026] Among them: 1. Air cooler tube bundle body; 2. Inlet and outlet water connecting pipes; 31. Sliding mounting seat; 32. Sliding block; 33. Shell; 34. Connecting rod; 35. Slide rail; 36. Slide rod; 37. Clamp; 41. Limit rail; 42. Limit groove; 43. Gear; 44. Guide groove; 45. Push rod; 51. Rotating groove; 52. Rotating part; 53. Turning knob; 54. Gear; 61. Guide rail; 62. Slot; 63. Spring slot; 64. Latch; 65. Slot; 66. Spring. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0028] Example:

[0029] See also Figure 1 - Fig. 9 , a mixed flow air cooler tube bundle fixing device, comprising an air cooler tube bundle body 1 and inlet and outlet water connecting pipes 2 arranged at the ends of both sides of the air cooler tube bundle body 1, the connection between the air cooler tube bundle body 1 and the two inlet and outlet water connecting pipes 2 is sleeved with a fastening mechanism, the fastening mechanism comprises two annular shells 33 sleeved and fitted at the connection between the air cooler tube bundle body 1 and the inlet and outlet water connecting pipes 2, and the two shells 33 are connected by a connecting rod 34, the outer walls of the two shells 33 are connected with a slider 32, and the outer wall of the slider 32 is slidably sleeved with a sliding mounting seat 31, and the sliding mounting seat 31 is fixedly assembled on the installation position of the air cooler tube bundle body 1;

[0030] Four slide rails 35 are equidistantly arranged around the inner wall of the shell 33, and a slide rod 36 is slidably arranged inside the slide rail 35. A clamp 37 is fixedly installed on the slide rod 36 near the axis of the shell 33, and the clamp 37 can be moved until it is tightly fitted with the connection between the air cooler tube bundle body 1 and the inlet and outlet water connecting pipe 2.

[0031] When the air cooler tube bundle body 1 needs to be installed, the sliding mounting seat 31 is fixed at the installation position, and the positions of the two shells 33 are adjusted to adapt to the air cooler tube bundle body 1, and then the two ends of the air cooler tube bundle body 1 are respectively passed through the two shells 33, and the two inlet and outlet water connecting pipes 2 are respectively installed at the two ends of the air cooler tube bundle body 1. The air cooler tube bundle body 1 and the inlet and outlet water connecting pipes 2 are installed through the shells 33 and the sliding mounting seat 31;

[0032] During use, when a gap is generated between the air cooler tube bundle body 1 and the shell 33 due to thermal expansion and contraction, the four slide bars 36 are pushed so that the slide bars 36 drive the clamps 37 to move under the guidance of the slide rails 35 until they are in contact with the surface of the air cooler tube bundle body 1. The clamps 37 are made of elastic material, so that they can fit tightly with the outer wall of the air cooler tube bundle body 1 to achieve the purpose of tightening the air cooler tube bundle body 1, avoiding thermal expansion and contraction of the tube bundle when the temperature of the fluid in the air cooler tube bundle changes significantly, and when the fixing method of the tube bundle is not strong enough, or the connecting parts between the tube bundles cannot effectively resist the stress caused by such temperature changes, the tube bundle may become loose, thereby improving the stability of the device.

[0033] In other embodiments, the position of the clamp 37 is adjusted by a diameter-changing mechanism, which includes an annular limit rail 41 disposed on the inner wall of the housing 33 away from the side of the slide rail 35, and four limit grooves 42 are slidably embedded on the surface of the limit rail 41, and gears 43 are connected to the bottom ends of the four limit grooves 42, and four guide grooves 44 are opened on the surface of the gear 43, and push rods 45 are arranged inside the guide grooves 44 and penetrate and fit the inner walls of the guide grooves 44, and the ends of the push rods 45 are connected to the slide rod 36;

[0034] When the position of the clamp 37 needs to be adjusted, the gear 43 is rotated to drive the limit groove 42 to rotate under the restriction of the limit rail 41. As the gear 43 rotates, the inner walls of the four guide grooves 44 opened on the surface of the gear 43 squeeze and push the push rod 45 to move. Under the restriction of the slide bar 36 and the slide rail 35, the four push rods 45 synchronously drive the four clamps 37 to move horizontally toward the surface of the air cooler tube bundle body 1 until they are in contact with the outer wall of the air cooler tube bundle body 1, thereby achieving the synchronous adjustment of the positions of the four clamps 37, and further improving the stability of the four clamps 37 after reinforcing the air cooler tube bundle body 1.

[0035] In other embodiments, the four limiting grooves 42 are all disposed between two adjacent guide grooves 44, and the ends of both sides of the limiting grooves 42 are terminated after reaching the edge of the guide groove 44;

[0036] With this design, when the gear 43 drives the limiting groove 42 to rotate under the restriction of the limiting rail 41 , there will be no contact or conflict between the guide groove 44 and the push rod 45 .

[0037] In other embodiments, the gear 43 is rotated by an adjustment mechanism, which includes a rotation groove 51 formed on the inner surfaces of the two housings 33, and a rotation member 52 is rotatably embedded in the rotation groove 51, a knob 53 is connected between the two rotation members 52, and a plurality of teeth 54 are equidistantly arranged around the inner wall of the knob 53, and the teeth 54 are all meshed with the gear 43;

[0038] When it is necessary to rotate the gear 43 to adjust the position of the four clamps 37, the knob 53 is pushed so that the knob 53 drives the two rotating parts 52 to rotate within the limits of the two rotating grooves 51. As the knob 53 is rotated, the teeth 54 on the inner side of the knob 53 can push the gear 43 to rotate, thereby achieving the purpose of pushing the clamp 37 to move by the rotation of the gear 43.

[0039] In other embodiments, a plurality of grooves are formed around the outer wall of the knob 53 at equal intervals;

[0040] With this design, when the worker turns the knob 53, his fingers can sink into the grooves provided on the surface of the knob 53, and the contact area between the fingers and the knob 53 is increased, thereby increasing the friction force generated when the knob 53 is turned, thereby preventing slipping.

[0041] In other embodiments, guide rails 61 are integrally formed on both sides of the inner wall of the sliding mounting seat 31, and slots 62 corresponding to the positions of the guide rails 61 and capable of being inserted into the guide rails 61 are formed on the outer walls of the two sliding blocks 32;

[0042] Through this design, the slider 32 can drive the slot 62 to move on the surface of the guide rail 61 set on the inner wall of the sliding mounting seat 31. With the cooperation of the slot 62 and the guide rail 61, the movement of the slider 32 is more stable, and the friction between the guide rail 61 and the slot 62 can have a certain limiting effect on the slider 32, so that it will not be easily displaced when not pushed by external force.

[0043] In other embodiments, a spring groove 63 is formed on the inner wall of the slider 32, and a latch 64 is provided through the middle of the spring groove 63, one end of a spring 66 is connected to the inner wall of the spring groove 63, and the other end of the spring 66 is connected to the outer wall of the latch 64;

[0044] An arc-shaped slot 65 is formed on the outer wall of the guide rail 61, and one end of the latch 64 close to the slot 65 is arranged in an arc shape that matches the slot 65 and is inserted into the slot 65;

[0045] With this design, after the slider 32 drives the card slot 62 to move to the specified position on the surface of the guide rail 61, the latch 64 is no longer squeezed by the outer wall of the guide rail 61, and the spring 66 inside the spring slot 63 is no longer squeezed by the latch 64. The spring 66 can recover elastic deformation and push the latch 64 to pop out from the spring slot 63 and insert into the slot 65 opened on the outer wall of the guide rail 61. The latch 64 cooperates with the slot 65 to reinforce the position of the slider 32, so that it cannot be easily displaced.

[0046] At the same time, when the outer end of the pin 64 is subjected to an external force with a specific arc angle, the pin 64 can be displaced and move out of the slot 65, thereby releasing the restrictions of the pin 64 and the slot 65 on the position of the slider 32 and the card slot 62, allowing the slider 32 to be unlocked and moved.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mixed flow air cooler tube bundle fixing device, comprising an air cooler tube bundle body (1) and inlet and outlet water connecting pipes (2) arranged at the ends of both sides of the air cooler tube bundle body (1), characterized in that: The connection between the air cooler tube bundle body (1) and the two water inlet and outlet connection pipes (2) is sleeved with a fastening mechanism, the fastening mechanism comprising two annular shells (33) sleeved and fitted at the connection between the air cooler tube bundle body (1) and the water inlet and outlet connection pipes (2), and the two shells (33) are connected by a connecting rod (34), the outer walls of the two shells (33) are connected with a slider (32), and the outer wall of the slider (32) is slidably sleeved with a sliding mounting seat (31), and the sliding mounting seat (31) is fixedly assembled on the installation position of the air cooler tube bundle body (1); Four slide rails (35) are equidistantly arranged around the inner wall of the shell (33), and a slide rod (36) is slidably arranged inside the slide rail (35). A clamp (37) is fixedly installed on the slide rod (36) near the axis of the shell (33), and the clamp (37) can be moved until it is tightly fitted with the connection between the air cooler tube bundle body (1) and the inlet and outlet water connecting pipes (2).

2. The tube bundle fixing device for a mixed flow air cooler according to claim 1, characterized in that: The position of the clamp (37) is adjusted by a diameter-changing mechanism, which comprises an annular limit rail (41) arranged on the inner wall of the housing (33) away from the side of the slide rail (35), and four limit grooves (42) are slidably embedded on the surface of the limit rail (41), and gears (43) are connected to the bottom ends of the four limit grooves (42), and four guide grooves (44) are opened on the surface of the gear (43), and push rods (45) are arranged inside the guide grooves (44) and penetrate and fit the inner walls of the guide grooves (44), and the ends of the push rods (45) are connected to the slide rod (36).

3. The tube bundle fixing device for a mixed flow air cooler according to claim 2, characterized in that: The four limiting grooves (42) are all arranged between two adjacent guide grooves (44), and the ends of both sides of the limiting grooves (42) are terminated after reaching the edges of the guide grooves (44).

4. A tube bundle fixing device for a mixed flow air cooler according to claim 2 or 3, characterized in that: The gear (43) is rotated by an adjusting mechanism, which comprises a rotating groove (51) provided on the inner side surfaces of the two housings (33), and a rotating member (52) is rotatably embedded in the rotating groove (51), a rotating knob (53) is connected between the two rotating members (52), and a plurality of teeth (54) are equidistantly arranged around the inner wall of the rotating knob (53), and the teeth (54) are all meshed with the gear (43).

5. The tube bundle fixing device for a mixed flow air cooler according to claim 4, characterized in that: The outer wall of the knob (53) is provided with a plurality of grooves at equal intervals.

6. The tube bundle fixing device for a mixed flow air cooler according to claim 1, characterized in that: Guide rails (61) are integrally formed on both sides of the inner wall of the sliding mounting seat (31), and slots (62) corresponding to the positions of the guide rails (61) and capable of being inserted into the guide rails (61) are formed on the outer walls of the two sliding blocks (32).

7. The tube bundle fixing device for a mixed flow air cooler according to claim 6, characterized in that: The inner wall of the slider (32) is provided with a spring groove (63), and a latch (64) is provided through the middle of the spring groove (63); one end of a spring (66) is connected to the inner wall of the spring groove (63), and the other end of the spring (66) is connected to the outer wall of the latch (64); The outer wall of the guide rail (61) is provided with an arc-shaped slot (65), and one end of the latch (64) close to the slot (65) is arranged in an arc shape that matches the slot (65) and is inserted into the slot (65).

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