A pipe fitting and installation method for heat exchanger

Abstract

The present invention discloses a piping fixture and installation method for a heat exchanger, wherein the piping fixture for the heat exchanger comprises a guide rail, a support and a flange assembly, wherein the height of the support is adjustable, wherein two supports are provided, and the two supports are fixed to the bottom surface of the guide rail, wherein the upper side, the front side and / or the rear side of the guide rail are provided with a T-slot, wherein a plurality of flange assemblies are provided, and the plurality of flange assemblies are all locked and fixed to the T-slot by fasteners, wherein the flange assembly comprises a flange plate and a telescopic member, wherein the flange plate is fixed to one end of the telescopic member, and the other end of the telescopic member is fixed to the T-slot. The present invention has a simple structure, greatly improves production efficiency and cycle, and the piping fixture can be used for heat exchangers of different specifications and models, thereby reducing costs for production enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, and in particular to a piping fixture and an installation method for a heat exchanger. Background Art

[0002] As an important component of various process systems, heat exchanger products are usually connected by flanges of different orientations and specifications in the process systems, and the heat exchange of the system is achieved by configuring pipelines.

[0003] At present, the method of configuring the system pipeline is to perform the system piping according to the flange position on the heat exchanger product that is connected to the two ends of the pipeline to be equipped. The system can only install the pipeline after the shell of the heat exchanger is completed. Because the production of the heat exchanger takes a certain amount of time, and the heat exchanger piping also requires preparation time, if the heat exchanger needs to be completed before piping can be carried out, it will seriously affect the production and construction cycle and efficiency. In the situation of fierce market competition, many orders are missed because the delivery time cannot be guaranteed. Therefore, there is an urgent need for a tooling that can replace the shell of the heat exchanger for early piping, so as to realize the simultaneous production and piping of the heat exchanger, greatly shorten the construction cycle and improve efficiency. Summary of the invention

[0004] The object of the present invention is to provide a heat exchanger piping fixture with a simple structure, a short production and construction period, low cost and high efficiency.

[0005] Another object of the present invention is to provide a method for installing a tooling for piping of a heat exchanger, which is convenient for assembly and disassembly, has high efficiency and a wide range of applications.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A piping fixture for a heat exchanger, comprising a guide rail, a support and a flange assembly, wherein the height of the support is adjustable, two supports are provided, and the two supports are fixed to the bottom surface of the guide rail;

[0008] The guide rail is provided with a T-slot on the upper side, the front side and / or the rear side, and the flange assembly is provided with multiple flange assemblies, and the multiple flange assemblies are all locked and fixed to the T-slot by fasteners. The flange assembly includes a flange plate and a telescopic member, the flange plate is fixed to one end of the telescopic member, and the other end of the telescopic member is fixed to the T-slot.

[0009] Preferably, the adjustment support includes a fixing seat and an adjustment rod, the top end of the adjustment rod is fixed to the bottom end of the guide rail, and the bottom end of the adjustment rod is threadedly connected to the fixing seat.

[0010] Preferably, the telescopic member includes an inner sleeve and an outer sleeve, the flange is fixed to one end of the inner sleeve, the other end of the inner sleeve is fixedly sleeved on one end of the outer sleeve, and the other end of the outer sleeve is locked and fixed to the T-slot by a fastener.

[0011] Preferably, the adjustment support further includes a bottom plate, and the fixing seat is fixedly mounted on the top end of the bottom plate.

[0012] Preferably, the adjusting rod is a screw rod, the bottom end of the adjusting rod is threadedly connected to the fixing seat and is locked and fixed by a nut.

[0013] Preferably, the flange assembly further comprises a mounting support, the mounting support is locked and fixed to the T-slot by a fastener, and the outer sleeve is fixed to the mounting support.

[0014] Preferably, the outer sleeve is provided with an elongated slot penetrating the outer sleeve, and the inner sleeve is provided with a through hole penetrating the inner sleeve, and the elongated slot and the through hole are arranged correspondingly and are locked and fixed by fasteners.

[0015] Preferably, a scale circle is engraved on the upper surface of the flange.

[0016] A method for installing a piping fixture for a heat exchanger comprises the following steps:

[0017] Step 1: Adjust the height of the support. By adjusting the relative position of the adjusting rod and the fixing base, ensure that the distance from the bottom end of the support to the central axis of the guide rail is equal to the distance from the bottom end of the heat exchanger to the central axis, and ensure that the horizontal heights of the two supports are consistent;

[0018] Step 2: Make the distance between the two flange assemblies equal to the distance between the two flanges of the extension pipes of the heat exchanger. After determining the position, fix the flange assembly to the T-slot of the guide rail 1 by using T-nuts and nuts, and ensure that the direction of the flange plate of the flange assembly is consistent with the direction of the flange of the extension pipe of the heat exchanger;

[0019] Step 3: Adjust the flange. By adjusting the relative positions of the inner sleeve and the outer sleeve, make the distance from the top of the flange to the central axis of the guide rail equal to the distance from the top of the flange of the extended pipe of the heat exchanger to the central axis. After determining the position, fix the inner sleeve with bolts and nuts to complete the tooling.

[0020] Step 4: Perform piping work;

[0021] Step 5: After the piping is completed, disassemble the tooling and continue to use it for piping work on other types of heat exchangers.

[0022] The beneficial effects of the present invention are as follows: the structure is simple, and the production efficiency and cycle are greatly improved. At the same time, the piping tooling can be used for heat exchangers of different specifications and models, which reduces the cost for the production enterprise; T-slots are arranged on the three sides of the guide rail, which can meet the different orientation requirements of the extended pipe flanges of different heat exchangers, and the structure is simple and the installation is convenient; it can be applied to the piping of heat exchangers of different models, and has a wide range of applications; and it is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0024] Figure 1 It is a structural schematic diagram of a piping fixture for a heat exchanger according to one embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of a flange assembly 3 of one embodiment of the present invention;

[0026] Among them: guide rail 1; T-slot 11; support 2; fixed seat 21; adjustment rod 22; bottom plate 23; flange assembly 3; flange plate 31; telescopic member 32; inner sleeve 33; through hole 331; outer sleeve 34; elongated slot 341; mounting support 35. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] The piping fixture of the heat exchanger of this embodiment is as follows: Figure 1 As shown, it includes a guide rail 1, a support 2 and a flange assembly 3, the height of the support 2 is adjustable, two supports 2 are provided, and the two supports 2 are fixed to the bottom surface of the guide rail 1;

[0029] The guide rail 1 is provided with a T-slot 11 on the upper side, front side and / or rear side, and a plurality of flange assemblies 3 are provided. The plurality of flange assemblies 3 are all fastened to the T-slot 11 by fasteners. The flange assembly 3 includes a flange plate 31 and a telescopic member 32. The flange plate 31 is fixed to one end of the telescopic member 32, and the other end of the telescopic member 32 is fixed to the T-slot 11.

[0030] The connecting pipe flange of the heat exchanger is usually designed to be directly above or on the front and rear sides of the heat exchanger. By providing T-slots 11 on the upper side, front side and / or rear side of the guide rail 1, the flange assembly 3 can be adjusted to the corresponding direction according to the direction of the extended pipe flange of the heat exchanger during piping, and then locked by fasteners. The T-slots 11 on three sides can meet the different orientation requirements of the extended pipe flanges of different heat exchangers, with a simple structure and easy installation.

[0031] Moreover, the height of the support 2 is adjustable, and the telescopic part 32 of the flange assembly 3 is telescopically adjustable. By adjusting the upper and lower heights of the support 2, the distance between the flange assemblies 3, and the distance from the end face of the flange assembly 3 to the center of the guide rail 1, the heat exchanger pipeline can be prefabricated and installed. The tooling has a simple structure and greatly improves the production efficiency and cycle. At the same time, the piping tooling can be used for heat exchangers of different specifications and models, reducing costs for manufacturers.

[0032] Preferably, the adjustment support 2 includes a fixing seat 21 and an adjustment rod 22 , the top end of the adjustment rod 22 is fixed to the bottom end of the guide rail 1 , and the bottom end of the adjustment rod 22 is threadedly connected to the fixing seat 21 .

[0033] During the piping tooling process, the distance from the bottom end of the support 2 to the central axis of the guide rail 1 needs to correspond to the distance from the bottom end of the heat exchanger to the central axis. By adjusting the relative position of the bottom end of the adjusting rod 22 and the fixed seat 21, the overall height of the support 2 can be adjusted, so that the distance from the bottom end of the support 2 to the central axis of the guide rail 1 is equal to the distance from the bottom end of the heat exchanger to the central axis, making the tooling suitable for heat exchangers of various sizes.

[0034] Preferably, the telescopic member 32 includes an inner sleeve 33 and an outer sleeve 34, the flange 31 is fixed to one end of the inner sleeve 33, the other end of the inner sleeve 33 is fixedly sleeved on one end of the outer sleeve 34, and the other end of the outer sleeve 34 is locked and fixed to the T-slot 11 by a fastener.

[0035] This tooling is used to carry out piping on behalf of the outer shell of the heat exchanger. It is necessary to ensure that the size of the piping installed on the tooling is consistent with the piping size of the heat exchanger. Therefore, it is necessary to adjust the relative position of the inner sleeve 33 and the outer sleeve 34 so that the distance from the top of the flange 31 to the central axis of the guide rail 1 is equal to the distance from the top of the flange of the heat exchanger extension pipe to the central axis. After the position is determined, it only needs to be locked by fasteners, which is convenient for adjustment.

[0036] Preferably, the adjustment support 2 further includes a bottom plate 23 , and the fixing seat 21 is fixedly installed on the top end of the bottom plate 23 .

[0037] The contact area of ​​the bottom end of the bottom plate 23 is larger than the contact area of ​​the bottom end of the fixing seat 21, thereby improving the stability of the tooling during the piping process.

[0038] Preferably, the adjusting rod 22 is a screw rod, and the bottom end of the adjusting rod 22 is threadedly connected to the fixing seat 21 and is locked and fixed by a nut.

[0039] The adjusting rod 22 is threadedly connected to the fixing seat 21. When the height of the adjusting rod 22 needs to be adjusted, it is only necessary to rotate the fixing seat 23 to reach the required height and then tighten the nut. The disassembly and assembly are convenient and the adjustment and installation efficiency is higher.

[0040] Preferably, the flange assembly 3 further includes a mounting support 35 , the mounting support 35 is locked and fixed to the T-slot 11 by fasteners, and the outer sleeve 34 is fixed to the mounting support 35 .

[0041] The mounting bracket 35 can reserve more installation and disassembly positions for fasteners, and is also more convenient for disassembly and assembly. The fastener can be a T-bolt, the bolt head of the T-bolt is inserted into the T-slot 11, and the threaded end of the T-bolt passes through the mounting bracket 35, and then the installation position of the mounting bracket 35 is adjusted, and after it is determined, the position of the mounting bracket 35 can be fixed by tightening it with a nut;

[0042] The fastener may also be an ordinary bolt, by inserting a square nut into the T-slot, and then using the threaded end of the ordinary bolt to pass through the mounting bracket 35 and lock it with the square nut thread; however, when locking the mounting bracket 33 in this way, it is necessary to align the mounting hole of the mounting bracket 35 and the square nut at the same time to lock them, and the installation efficiency is low, so the preferred fastener is a T-nut to improve the disassembly and assembly efficiency.

[0043] Preferably, if Figure 2 As shown, the outer sleeve 34 is provided with an elongated slot 341 penetrating the outer sleeve 34 , and the inner sleeve 33 is provided with a through hole 331 penetrating the inner sleeve 33 . The elongated slot 341 is arranged corresponding to the through hole 331 , and is locked and fixed by fasteners.

[0044] Before the tooling is used for piping, it is necessary to adjust the distance from the top of the flange 31 to the center axis of the guide rail 1. By cooperating with the long groove 321 and the through hole 331, the position of the inner sleeve 33 can be adjusted, thereby adjusting the distance from the top of the flange 31 to the center axis of the guide rail 1. After determining the fixed position, bolts can be passed through the long groove 341 and the through hole 331 and locked with nuts. The structure is simple and easy to disassemble and assemble.

[0045] Preferably, a scale circle is engraved on the upper surface of the flange 31 .

[0046] The system and the heat exchanger are connected by standard pipe flanges. Therefore, a commonly used pipe flange outer diameter size circle is engraved on the upper surface of the flange 31. When the system is piping, the system pipe flange is placed on the flange 31 of the tooling, and the center of the pipeline is located by the matching scale size circle to meet the precision requirements of piping.

[0047] A method for installing a piping fixture for a heat exchanger comprises the following steps:

[0048] Step 1, adjust the height of the support 2, by adjusting the relative position of the adjusting rod 22 and the fixing base 21, ensure that the distance from the bottom end of the support 2 to the central axis of the guide rail 1 is equal to the distance from the bottom end of the heat exchanger to be piped to the central axis, and ensure that the horizontal heights of the two supports 2 are consistent;

[0049] Step 2: Make the distance between the two flange assemblies 3 equal to the distance between the two flanges of the extended pipes of the heat exchanger. After the position is determined, fix the flange assembly 3 to the T-slot 11 of the guide rail 1 by means of T-nuts and nuts, and ensure that the direction of the flange plate 31 of the flange assembly 3 is consistent with the direction of the flange of the extended pipe of the heat exchanger;

[0050] Step 3, adjust the flange 31, and adjust the relative positions of the inner sleeve 33 and the outer sleeve 34 so that the distance from the top of the flange 31 to the central axis of the guide rail 1 is equal to the distance from the top of the flange of the extended pipe of the heat exchanger to the central axis. After determining the position, fix the inner sleeve 33 with bolts and nuts to complete the tooling;

[0051] Step 4: Perform piping work;

[0052] Step 5: After the piping is completed, disassemble the tooling and continue to use it for piping work on other types of heat exchangers.

[0053] By adjusting the upper and lower heights of 2, the distance between the flange assemblies 3, and the distance from the end face of the flange assembly 3 plate 33 to the center of the guide rail 1, the pipeline can be prefabricated and installed. The structure is simple, which greatly improves the production efficiency and cycle. At the same time, the piping tooling can be used for heat exchangers of different specifications and models, reducing costs for manufacturers.

[0054] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A method for installing a piping fixture for a heat exchanger, characterized in that: It includes a guide rail, a support and a flange assembly, wherein the height of the support is adjustable, two supports are provided, and the two supports are fixed to the bottom surface of the guide rail; The guide rail is provided with a T-slot on the upper side, the front side and / or the rear side, and the flange assembly is provided with a plurality of flange assemblies, and the plurality of flange assemblies are locked and fixed to the T-slot by fasteners, and the flange assembly comprises a flange plate and a telescopic member, the flange plate is fixed to one end of the telescopic member, and the other end of the telescopic member is fixed to the T-slot; The installation method comprises the following steps: Step 1: The height of the support is determined by adjusting the relative position of the adjusting rod and the fixing base to ensure that the distance from the bottom end of the support to the central axis of the guide rail is equal to the distance from the bottom end of the heat exchanger to the central axis to be piped, and the horizontal heights of the two supports are consistent; Step 2: Make the distance between the two flange assemblies equal to the distance between the two extension pipe flanges of the heat exchanger. After determining the position, fix the flange assembly to the T-slot of the guide rail with T-nuts and nuts, and ensure that the direction of the flange plate of the flange assembly is consistent with the direction of the extension pipe flange of the heat exchanger; Step 3: Adjust the flange. By adjusting the relative positions of the inner sleeve and the outer sleeve, make the distance from the top of the flange to the central axis of the guide rail equal to the distance from the top of the flange of the extended pipe of the heat exchanger to the central axis. After determining the position, fix the inner sleeve with bolts and nuts to complete the tooling. Step 4: Perform piping work; Step 5: After the piping is completed, disassemble the tooling and continue to use it for piping work on other types of heat exchangers.

2. The method for installing a piping fixture for a heat exchanger according to claim 1, characterized in that: The support comprises a fixing seat and an adjusting rod, the top end of the adjusting rod is fixed to the bottom end of the guide rail, and the bottom end of the adjusting rod is threadedly connected to the fixing seat.

3. The method for installing a piping fixture for a heat exchanger according to claim 1, characterized in that: The telescopic member includes an inner sleeve and an outer sleeve, the flange is fixed to one end of the inner sleeve, the other end of the inner sleeve is fixedly sleeved on one end of the outer sleeve, and the other end of the outer sleeve is locked and fixed to the T-slot by a fastener.

4. The method for installing a piping fixture for a heat exchanger according to claim 2, characterized in that: The support also includes a bottom plate, and the fixing seat is fixedly installed on the top end of the bottom plate.

5. The method for installing a piping fixture for a heat exchanger according to claim 2, characterized in that: The adjusting rod is a screw rod, the bottom end of which is threadedly connected to the fixing seat and is locked and fixed by a nut.

6. The method for installing a piping fixture for a heat exchanger according to claim 3, characterized in that: The flange assembly also includes a mounting support, which is locked and fixed to the T-slot by a fastener, and the outer sleeve is fixed to the mounting support.

7. The method for installing a piping fixture for a heat exchanger according to claim 3, characterized in that: The outer sleeve is provided with an elongated slot penetrating the outer sleeve, and the inner sleeve is provided with a through hole penetrating the inner sleeve. The elongated slot and the through hole are arranged correspondingly and are locked and fixed by fasteners.

8. The method for installing a piping fixture for a heat exchanger according to claim 3, characterized in that: The upper surface of the flange is engraved with a scale circle.

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