Horizontal reboiler

Abstract

The utility model discloses a horizontal reboiler, and relates to the technical field of heat exchange equipment. In the horizontal reboiler, a shell assembly comprises a shell and a first cover body, a liquid opening is formed in the bottom of the shell, a steam opening is formed in the top of the shell, a first mounting opening is formed in the side face of the shell, the first cover body is arranged on the first mounting opening to seal the first mounting opening, and the inner layer of the shell and the inner layer of the first cover body are glass lining layers; the heat exchange assembly is a 0Cr18Ni12Mo2Ti stainless steel part and comprises a steam inlet pipe capable of penetrating through the first mounting port, a water outlet pipe and at least two sets of heat exchange coils, each heat exchange coil is arranged at the top of the supporting part, the first end of the steam inlet pipe is communicated with an inlet of each heat exchange coil, the first end of the water outlet pipe is communicated with an outlet of each heat exchange coil, and the second end of the steam inlet pipe is communicated with an outlet of each heat exchange coil. The second end of the steam inlet pipe and the second end of the water outlet pipe penetrate through the shell assembly to be communicated with the outside. The supporting assembly comprises a supporting piece arranged at the bottom of the shell so as to support the heat exchange assembly. The reboiler is high in heat exchange efficiency on the basis of ensuring excellent corrosion resistance and heat exchange efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, and more specifically to a horizontal reboiler. Background Art

[0002] The reboiler is a special heat exchanger that can exchange heat and has a vaporization space. It is widely used in the fractionation system of petroleum, chemical, light industry, pharmaceutical and other fields. It is often used in conjunction with a fractionation tower. The material level of the distillation liquid in the reboiler and the liquid level of the fractionation tower must be at the same height. The liquid phase material is supplied from the bottom pipeline of the tower to enter the reboiler. The material expands or even vaporizes due to the heat in the reboiler, and the density decreases, so it leaves the vaporization space and smoothly returns to the tower. The gas and liquid phases in the tower, the gas phase passes upward through the tower plate, and the liquid phase will fall to the bottom of the tower. Due to the static pressure difference, the bottom of the tower will continuously replenish the part of the liquid level that has been evaporated.

[0003] In the actual application of recovering solvent from mother liquor, mother liquor is a process waste liquid that has participated in the production. The liquid contains a variety of substances including solvents. In order to save production costs and reduce the cost of pollutant treatment, distillation equipment can usually be used to recover solvents and reuse them in production. Specifically, after the mother liquor is heated in the reboiler, some low-boiling point light components such as solvents and water will boil and vaporize, discharge from the reboiler and be sent to the distillation tower. The concentration of other high-boiling point substances will increase as the low-boiling point substances evaporate, and even crystallize. These precipitated substances form dirt that will accumulate inside the reboiler or adhere to the inner surface of the reboiler and the outer surface of the heat exchange tube. After long-term use, more and more dirt is precipitated, and the scale layer on the heat exchange tube becomes thicker and thicker, which will affect the heat exchange effect of the heat exchange tube, resulting in reduced production efficiency and even production suspension accidents.

[0004] In order to restore the production capacity of the equipment and eliminate potential accidents, it is necessary to regularly remove the dirt in the reboiler. Since the dirt precipitated from the mother liquor in the reboiler is generally carbonate substances, these substances can be dissolved and removed by acidic liquid reaction. In order to shorten the maintenance cycle and reduce the labor intensity of personnel, a set of online cleaning process pipelines using acidic cleaning agents is often designed in the distillation device. The dirt in the equipment is cleaned by online cleaning. This method can achieve efficient and timely recovery of equipment capacity. However, after adding the online pickling process, the pickling liquid generally contains chloride ions, acid radical ions, etc., which can cause corrosion to the metal reboiler and its internal heat exchange tubes, affecting its service life.

[0005] In summary, how to extend the service life of the reboiler is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a horizontal reboiler, which has a high heat exchange efficiency on the basis of ensuring the heat exchange efficiency.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A horizontal reboiler, comprising:

[0009] A shell assembly, comprising a shell and a first cover, wherein the shell has a liquid port at the bottom, a steam port at the top, and a first mounting port at the side, the first cover is disposed at the first mounting port to close the first mounting port, and the inner layers of the shell and the first cover are glass-lined layers;

[0010] The heat exchange assembly is a 0Cr18Ni12Mo2Ti stainless steel part, including a steam inlet pipe, a water outlet pipe, and at least two sets of heat exchange coils. The steam inlet pipe, the water outlet pipe, and each set of the heat exchange coils can pass through the first installation port, and each heat exchange coil is placed on the top of the support. The first end of the steam inlet pipe is connected to the inlet of each heat exchange coil, the first end of the water outlet pipe is connected to the outlet of each heat exchange coil, and the second end of the steam inlet pipe and the second end of the water outlet pipe pass through the shell assembly to connect to the outside thereof;

[0011] The support assembly includes a support member arranged at the bottom of the shell to support the heat exchange assembly.

[0012] Preferably, the side wall of the housing further has at least two sets of opposite second mounting openings, and the opposite second mounting openings are collinear in the vertical direction;

[0013] The number of the supporting members is at least two, and each supporting member is inserted into the corresponding collinear second mounting opening;

[0014] The housing assembly further includes a second cover body, and the second cover body is disposed at the second installation opening to close the second installation opening.

[0015] Preferably, a tetrafluoroethylene bushing is sleeved on the end of the support member, and the tetrafluoroethylene bushing is clamped between the shell and the support member;

[0016] And / or, the side wall of the equipment housing has three groups of collinear second mounting openings, the number of the support members is three, and one of the support members is located at the first end of the heat exchange coil, another of the support members is located at the second end of the heat exchange coil, and the remaining one of the support members is located in the middle of the heat exchange coil;

[0017] And / or, the support member is a tubular structure.

[0018] Preferably, the middle portion of the heat exchange coil is a spiral structure, one end of the spiral structure is located at the top thereof, and the other end of the spiral structure passes through the middle through hole thereof and extends from the bottom toward the top thereof.

[0019] Preferably, each of the heat exchange coils comprises at least three heat conducting pipes;

[0020] The heat exchange assembly also includes a phase collecting pipe, which includes a first main pipe and at least three first branch pipes connected to the first main pipe, and the first main pipe is flange-connected to the steam inlet pipe or the water outlet pipe, and the first branch pipe is flange-connected to the inlet or outlet of each of the heat transfer pipes in the corresponding heat exchange coil.

[0021] Preferably, the steam inlet pipe and the water outlet pipe both include a connecting pipe and a wall-mounted pipe provided on the side wall of the shell;

[0022] The connecting pipe includes a second main pipe and at least two second branch pipes connected to the second main pipe, the second main pipe is flange-connected to the wall-mounted pipe, and each of the second branch pipes is flange-connected to the corresponding first main pipe.

[0023] Preferably, opposite connection seats are provided on the outer side of the shell side wall, and each of the connection seats has a first mounting through hole along the longitudinal direction;

[0024] It also includes a saddle, which has a receiving groove on the top, the shell is embedded in the receiving groove, the top flange of the saddle has a second mounting hole along the longitudinal direction, bolts are inserted in the first mounting hole and the second mounting hole, and the free end of the bolt is spirally connected with a nut.

[0025] Preferably, the number of the heat exchange coils is three or four sets.

[0026] Preferably, the outer layers of the shell and the first cover are carbon steel layers.

[0027] Preferably, the bottom of the housing also has a waste port;

[0028] The top of the housing has a first pipe opening for installing a pressure gauge;

[0029] The top of the shell is used to install a second nozzle of the thermometer;

[0030] The top and the bottom of the side wall of the shell are both provided with a third pipe opening for installing a liquid level meter.

[0031] The utility model provides a horizontal reboiler, wherein the shell assembly is used to install and support the heat exchange assembly and the support assembly; wherein the shell is a hollow structure used to accommodate the liquid to be treated, a liquid port is provided at the bottom of the shell, so that the liquid to be treated can be transported to the inner cavity of the shell and the waste liquid and residue in the shell can be discharged, a steam port is provided at the top of the shell, so that the steam at the top of the inner cavity of the shell can be discharged, and further, a first installation port is provided on the side wall of the shell, for each component in the heat exchange assembly to pass through so as to place it at a preset position in the inner cavity of the shell; and a first cover plate is fixed at the first installation port to ensure that the first installation port of the shell is closed.

[0032] The support member arranged at the bottom of the shell in the support assembly is used to support the heat exchange assembly; the heat exchange assembly is used to heat the liquid to be treated, wherein the heat exchange coil is located in the lower middle part or the bottom of the inner cavity of the shell, so that the heat exchange coil is immersed in the liquid to be treated when the reboiler is in use; a steam inlet pipe and a water outlet pipe are arranged on the side wall of the shell, and the other end of the steam inlet pipe is connected to the inlet of each heat exchange coil, so that the steam outside the shell can be introduced into the heat exchange coil, and the other end of the water outlet pipe is connected to the outlet of each heat exchange coil, so that the water condensed from the steam in the heat exchange coil can be discharged from the shell.

[0033] When in use, steam is transported from the steam inlet pipe to the heat exchange coil, the steam flows in the heat exchange coil and dissipates heat to heat the liquid in the inner cavity of the shell, and finally the liquid condensed from the steam in the heat exchange coil flows out through the outlet pipe; the liquid to be treated is transported from the liquid port to the inner cavity of the shell, the liquid is heated and vaporized by the heat dissipated by the steam in the heat exchange coil, and discharged from the shell through the steam port.

[0034] The inner side of the shell in the reboiler, the inner side of the through hole opened in the side wall of the shell and the inner side of each cover plate used to close the shell all have a glass-lined layer, and each component in the heat exchange assembly is 0Cr18Ni12Mo2Ti stainless steel, so the corrosion resistance of the reboiler is good; furthermore, the heat exchange coil combination arrangement in the reboiler ensures both the strength of the shell and the heat exchange efficiency of the reboiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the structure of a specific embodiment provided by the utility model;

[0037] Figure 2 for Figure 1 Middle BB view;

[0038] Figure 3 for Figure 1 Medium AA view.

[0039] Figure 1-Figure 3 , the reference numerals include:

[0040] 1 is a shell assembly, 11 is a shell, 111 is a liquid port, 112 is a steam port, 113 is a first installation port, 114 is a second installation port, 115 is a waste port, 116 is a first pipe port, 117 is a second pipe port, 118 is a third pipe port, 12 is a first cover body, 13 is a second cover body, and 14 is a connecting seat;

[0041] 2 is a heat exchange component, 21 is a steam inlet pipe, 22 is a water outlet pipe, 221 is a wall pipe, 222 is a connecting pipe, 2221 is a second main pipe, 2222 is a second branch pipe, 23 is a heat exchange coil, 24 is a phase collecting pipe, 241 is a first main pipe, and 242 is a first branch pipe;

[0042] 3 is a support assembly, 31 is a support member;

[0043] 4 is a saddle. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] The core of the utility model is to provide a horizontal reboiler, which has high heat exchange efficiency on the basis of ensuring the heat exchange efficiency.

[0046] Please refer to Figures 1 to 3The utility model provides a horizontal reboiler, including a shell component 1, a heat exchange component 2 and a support component 3. The shell component 1 includes a shell 11 and a first cover 12. The shell 11 has a liquid port 111 at the bottom, a steam port 112 at the top, and a first mounting port 113 at the side. The first cover 12 is arranged at the first mounting port 113 to close the first mounting port 113, and the inner layer of the shell 11 and the first cover 12 is a glass-lined layer; the heat exchange component 2 is a 0Cr18Ni12Mo2Ti stainless steel part, including a steam inlet pipe 21, a water outlet pipe 22, at least two sets of heat exchange coils 23, and an inlet pipe 21. The steam pipe 21, the water outlet pipe 22, and each set of heat exchange coils 23 can all pass through the first installation port 113, and each heat exchange coil 23 is placed on the top of the support member 31, the first end of the steam inlet pipe 21 is connected to the inlet of each heat exchange coil 23, the first end of the water outlet pipe 22 is connected to the outlet of each heat exchange coil 23, and the second end of the steam inlet pipe 21 and the second end of the water outlet pipe 22 both pass through the shell assembly 1 to connect to the outside; the support assembly 3 includes a support member 31 arranged at the bottom of the shell 11 to support the heat exchange assembly 2.

[0047] The housing assembly 1 is used to install and support the heat exchange assembly 2 and the support assembly 3. Specifically, Figure 1 and Figure 2 As shown, the shell 11 is a hollow structure for accommodating the liquid to be treated. The shell 11 can adopt a cylindrical structure, such as a flat-end cylindrical structure. Preferably, the shell 11 adopts a transversely arranged double-end cylindrical structure, and the bottom of the inner cavity of the shell 11 is an arc-shaped surface, which is conducive to draining the liquid in the inner cavity of the shell 11, facilitating cleaning of the shell 11, and facilitating production and manufacturing; a liquid port 111 is provided at the bottom of the shell 11, so that the liquid to be treated can be transported to the inner cavity of the shell 11 and the waste liquid and residue in the shell 11 can be discharged, and a steam port 112 is provided at the top of the shell 11, so that the steam at the top of the inner cavity of the shell 11 can be discharged, and further, a first mounting port 113 is provided on the side wall of the shell 11. Preferably, as Figure 1 As shown, the first mounting port 113 is located at the head of the shell 11, and is used for each component in the heat exchange assembly 2 to pass through so as to place it at a preset position in the inner cavity of the shell 11, and a first cover plate is fixed at the first mounting port 113 to ensure that the first mounting port 113 of the shell 11 is closed.

[0048] It should be noted that the types of the liquid port 111 , the steam port 112 , and the first installation port 113 are not limited as long as the processing technology of the glass-lined part can be realized.

[0049] like Figure 1 and Figure 3As shown, the support member 31 arranged at the bottom of the shell 11 in the support assembly 3 is used to support the heat exchange assembly 2. Optionally, two support members 31 are arranged at intervals in the lower middle part or the bottom of the inner cavity of the shell 11, so as to support the heat exchange assembly 2 placed on the top thereof, or, a long strip-shaped support member 31 supports the heat exchange assembly 2 alone. Optionally, a gasket is placed on the bottom wall of the inner cavity of the shell 11, and the support member 31 with the same bottom shape as the bottom wall of the shell 11 is placed on the gasket. The two support members 31 are arranged at intervals in the horizontal direction, and the top surface of the support member 31 is a plane or is provided with a groove for engaging the heat exchange coil 23, etc., so that the support member 31 assembly can stably support the heat exchange assembly 2.

[0050] The heat exchange component 2 is used to heat the liquid to be treated, specifically, Figure 1 and Figure 2 As shown, the heat exchange coil 23 is located in the lower middle part or the bottom of the inner cavity of the shell 11, so that the heat exchange coil 23 is immersed in the liquid to be treated when the reboiler is in use; a steam inlet pipe 21 and a water outlet pipe 22 are arranged on the side wall of the shell 11, and the other end of the steam inlet pipe 21 is connected to the inlet of each heat exchange coil 23, so that the steam outside the shell 11 can be introduced into the heat exchange coil 23, and the other end of the water outlet pipe 22 is connected to the outlet of each heat exchange coil 23, so that the water condensed from the steam in the heat exchange coil 23 can be discharged out of the shell 11.

[0051] When in use, steam is transported from the steam inlet pipe 21 to the heat exchange coil 23, the steam flows in the heat exchange coil 23 and dissipates heat to heat the liquid in the inner cavity of the shell 11, and finally the liquid condensed from the steam in the heat exchange coil 23 flows out through the water outlet pipe 22; the liquid to be treated is transported from the liquid port 111 to the inner cavity of the shell 11, the liquid is heated and vaporized by the heat dissipated by the steam in the heat exchange coil 23, and is discharged from the shell 11 through the steam port 112.

[0052] In the reboiler, the inner side of the shell 11, the inner side of the through hole opened in the side wall of the shell 11 and the inner side of each cover plate used to close the shell 11 all have a glass-lined layer, and each component in the heat exchange component 2 is 0Cr18Ni12Mo2Ti stainless steel parts, so the corrosion resistance of the reboiler is good; furthermore, considering the glass-lined layer on the inner side of the shell 11, the heat exchange coil 23 in the reboiler is combined and arranged, which not only ensures the strength of the shell 11, but also ensures the heat exchange efficiency of the reboiler, and the first cover plate and each heat exchange coil 23 are small in size and light in weight, which is conducive to its installation operation.

[0053] Based on the above embodiment, the side wall of the shell 11 also has at least two groups of opposite second mounting openings 114, and the opposite second mounting openings 114 are collinear in the vertical direction; the number of support members 31 is at least two, and each support member 31 is inserted into the corresponding collinear second mounting opening 114; the shell assembly 1 also includes a second cover body 13, and the second cover body 13 is arranged on the second mounting opening 114 to close the second mounting opening 114.

[0054] like Figures 1 to 3 As shown, the support member 31 is a rod-shaped structure, and at least two second mounting openings 114 are provided on opposite side walls of the shell 11, and the second mounting openings 114 on opposite side walls of the shell 11 are collinear in pairs in a horizontal plane, and corresponding support members 31 are inserted in each group of collinear second mounting openings 114, and each heat exchange coil 23 is placed one by one along the vertical direction, that is, the length direction of the support member 31, so as to support the heat exchange component 2 through each support member 31, and a first cover plate is fixed at the first mounting opening 113 to ensure that the second mounting opening 114 of the shell 11 is closed to ensure the function of the reboiler.

[0055] With such arrangement, when assembling the reboiler, the installer can complete the installation of the support assembly 3 on the outside of the shell 11, which greatly reduces the difficulty of installation.

[0056] On the basis of the above-mentioned embodiment, a tetrafluoroethylene bushing is sleeved on the end of the support member 31 , and the tetrafluoroethylene bushing is clamped between the housing 11 and the support member 31 .

[0057] A tetrafluoroethylene bushing is sleeved on the end of the support member 31. During assembly, the support member 31 is inserted into the corresponding second mounting opening 114. After the support member 31 is installed in place, the tetrafluoroethylene bushing is located between the circumference of the support member 31 and the inner wall of the second mounting opening 114. This arrangement is beneficial to protecting the inner glass-lined layer of the shell 11 from being damaged, so as to ensure the corrosion resistance of the reboiler.

[0058] In some embodiments, the side wall of the equipment housing 11 has three groups of colinear second mounting ports 114, the number of support members 31 is three, and one support member 31 is located at the first end of the heat exchange coil 23, another support member 31 is located at the second end of the heat exchange coil 23, and the remaining support member 31 is located in the middle of the heat exchange coil 23.

[0059] like Figure 1 and Figure 2 As shown, the heat exchange coil 23 extends from left to right in the horizontal direction, and three groups of spaced second mounting openings 114 are opened in the horizontal direction on the shell 11. Then, three support members 31 can be arranged in the horizontal direction from left to right in spaced order. The support members 31 on both sides contact the bottom surfaces at both ends of the heat exchange coil 23, and the support member 31 in the middle contacts the bottom surface in the middle part of the heat exchange coil 23, so that the heat exchange component 2 can be supported more stably.

[0060] In some embodiments, the support member 31 is a tubular structure, which is conducive to reducing the weight of the reboiler while meeting the support strength, and further reducing the difficulty of installation.

[0061] Based on the above embodiment, the middle part of the heat exchange coil 23 is a spiral structure, one end of the spiral structure is located at the top, and the other end of the spiral structure passes through the middle through hole and extends from the bottom to the top.

[0062] like Figure 2 and Figure 3 As shown, the middle part of the heat exchange coil 23 adopts a spiral structure, and there is a through hole in the middle of the spiral structure. According to the spiral process requirements, usually one end of the spiral structure is located at the top and the other end is located at the bottom. The end of the heat exchange coil 23 located at the bottom of the spiral structure spirals toward the middle through hole of the spiral structure and extends through the through hole to the top of the spiral structure. With this arrangement, during installation, the structure connected to the heat exchange coil 23 can be installed at the top of the heat exchange coil 23, which helps to further reduce the difficulty of installation.

[0063] Preferably, the lengths of each layer of the spiral structure in the horizontal and vertical directions are equal. Such an arrangement is beneficial for increasing the heat exchange area per unit volume to improve the heat exchange efficiency of each heat exchange coil 23.

[0064] On the basis of the above embodiments, each heat exchange coil 23 includes at least three heat conduction pipes; the heat exchange assembly 2 also includes a phase collecting pipe 24, the phase collecting pipe 24 includes a first main pipe 241 and at least three first branch pipes 242 connected to the first main pipe 241, and the first main pipe 241 is flange-connected to the steam inlet pipe 21 or the water outlet pipe 22, and the first branch pipe 242 is flange-connected to the inlet or outlet of each heat conduction pipe in the corresponding heat exchange coil 23.

[0065] like Figure 1 As shown, each set of heat exchange coils 23 includes at least three heat conduction pipes, and each heat exchange coil 23 includes at least three inlets and at least three outlets. The water outlet pipe 22 and the steam inlet pipe 21 are both connected to the first main pipe 241 in the collecting pipe 24, and each outlet and each inlet of the heat exchange coil 23 are connected to the first branch pipe 242 in the corresponding collecting pipe 24. It should be noted that the number of the first branch pipes 242 is greater than or equal to the number of heat conduction pipes in the corresponding heat exchange coil 23.

[0066] When in use, the steam in the steam inlet pipe 21 first flows into the first main pipe 241 connected thereto, and then the steam in the first main pipe 241 flows into the first branch pipe 242 connected thereto, and finally flows into each heat exchange coil 23. Conversely, the liquid condensed from the steam in each heat exchange coil 23 first flows into the first branch pipe 242 connected thereto, and then the liquid in each first branch pipe 242 flows into the first main pipe 241 connected thereto, and finally flows out through the water outlet pipe 22.

[0067] With such arrangement, the reboiler further reduces the difficulty of installation while ensuring the heat exchange efficiency, and the reboiler is light in weight and low in cost.

[0068] On the basis of the above-mentioned embodiments, the steam inlet pipe 21 and the water outlet pipe 22 both include a connecting pipe 222 and a wall pipe 221 arranged on the side wall of the shell 11; the connecting pipe 222 includes a second main pipe 2221 and at least two second branch pipes 2222 connected to the second main pipe 2221, the second main pipe 2221 is flange-connected to the wall pipe 221, and each second branch pipe 2222 is flange-connected to the corresponding first main pipe 241.

[0069] like Figure 2 As shown, in this embodiment, the steam inlet pipe 21 and the water outlet pipe 22 are arranged in sections. Specifically, the wall pipe 221 is arranged on the side wall of the shell 11, so as to connect the outside of the shell 11 with the inside of the shell 11. One end of the wall pipe 221 located in the inner cavity of the shell 11 is flange-connected to the second main pipe 2221 in the connecting pipe 222, and each second branch pipe 2222 connected to the second main pipe 2221 is flange-connected to the first main pipe 241 of the corresponding collecting pipe 24.

[0070] When in use, steam flows from the corresponding wall-mounted tube 221 into the second main pipe 2221 connected thereto, and flows into the corresponding first main pipe 241 through the second branch pipes 2222 connected thereto, and then the steam in the first main pipe 241 flows into the first branch pipes 242 connected thereto, and finally flows into each heat exchange coil 23; conversely, the liquid condensed from the steam in each heat exchange coil 23 first flows into the first branch pipe 242 connected thereto, and then the liquid in each first branch pipe 242 flows into the first main pipe 241 connected thereto, and finally the liquid in the first main pipe 241 flows into the corresponding second main pipe 2221 through the second branch pipe 2222 connected thereto, and flows out through the wall-mounted tube 221 connected to the second main pipe 2221.

[0071] With such a configuration, the steam inlet pipe 21 and the water outlet pipe 22 are arranged in sections, so that the pipeline structure layout inside the reboiler is relatively simple and clear, and the flange connection assembly installation is conducive to further reducing the difficulty of installation.

[0072] Preferably, Figure 1 As shown, the outlet and inlet of each heat exchange coil 23 are both vertically upward, the first main pipe 241 in the phase collecting pipe 24 extends in the direction of the inlet connection line and the outlet connection line of the heat exchange coil 23, and the first branch pipe 242 extends downward from the first main pipe 241; the wall pipe 221 extends in a direction perpendicular to the inner surface of the position where it is connected to the shell 11, the second main pipe 2221 in the connecting pipe 222 is in line with the connecting pipe 222, and the second branch pipe 2222 is in line with the first main pipe 241. Such a configuration is convenient for assembly and each pipe has a high stability.

[0073] On the basis of the above embodiment, a relative connecting seat 14 is provided on the outer side of the side wall of the shell 11, and each connecting seat 14 has a first mounting through hole along the longitudinal direction; it also includes a saddle 4, a top of which has a receiving groove, the shell 11 is embedded in the receiving groove, and the top flange of the saddle 4 has a second mounting through hole along the longitudinal direction, bolts are inserted into the first mounting through hole and the second mounting through hole, and the free end of the bolt is spirally connected with a nut.

[0074] like Figure 1 and Figure 3 As shown, the connecting seat 14 is welded to the outer layer of the shell 11, and the bottom surface of the saddle 4 is used to be fixedly connected to the ground or workbench at a preset position, and the receiving groove opened on the top surface of the saddle 4 has the same shape as the bottom of the shell 11, so that the bottom of the shell 11 can be embedded in the receiving groove.

[0075] During assembly, the saddle 4 is first fixed at a preset position, and then the shell 11 is placed in the receiving groove at the top of the saddle 4. After the shell 11 is placed in place, the first mounting through hole opened in the vertical direction of the connection seat 14 and the second mounting through hole opened in the longitudinal direction of the top flange of the saddle 4 are in line, and bolts are inserted into the first mounting through hole and the second mounting through hole, and nuts are screwed on the free ends of the bolts to complete the fixing of the shell 11. With the detachable saddle 4 set in this way, when the glass lining layer of the shell 11 is enameled, the steel saddle 4 does not need to be put into the high-temperature furnace together, so as to avoid the deformation of the saddle 4 due to heat; at the same time, the split bolt connection installation does not need to perform welding operations on the shell assembly 1, which effectively reduces the possibility of damage to the glass lining layer of the reboiler, so as to ensure the corrosion resistance of the reboiler.

[0076] Optionally, the saddle 4 includes two supporting legs and a plate-like structure arranged on the top of the supporting legs, and the plate-like structure has the same shape as the bottom of the shell 11, or the saddle 4 only includes two supporting legs, and receiving grooves are provided on the tops of the two supporting legs.

[0077] Preferably, a shock-absorbing pad is sandwiched between the side wall of the receiving groove and the shell 11, which is beneficial to further protect the glass-lined layer of the shell 11 to ensure the corrosion resistance of the reboiler.

[0078] Based on the above embodiment, the number of heat exchange coils 23 is three or four sets. In this embodiment, three or four sets of heat exchange coils 23 are arranged, which ensures the heat exchange efficiency while retaining sufficient installation space for the installers to enter the tank for installation.

[0079] In some embodiments, the outer layers of the shell 11 and the first cover 12 are carbon steel layers. With this arrangement, the cost of the reboiler is relatively low.

[0080] In some embodiments, the bottom of the housing 11 further has a waste port 115, such as Figure 1 As shown, with such an arrangement, waste liquid and residue in the shell 11 can be discharged through the waste port 115. Such an arrangement facilitates the use of the reboiler.

[0081] In some embodiments, the top of the housing 11 has a first pipe opening 116 for installing a pressure gauge. Figure 1 As shown, in this configuration, the reboiler can be provided with a pressure gauge, and the working pressure in the shell 11 can be known through the pressure gauge; in some embodiments, the top of the shell 11 is used to install a second nozzle 117 of a thermometer, such as Figure 1 As shown, in this configuration, the reboiler can be provided with a thermometer, and the operating temperature in the shell 11 can be known through the thermometer; in some embodiments, the top and bottom of the side wall of the shell 11 are provided with a third pipe opening 118 for installing a liquid level gauge, such as Figure 1 As shown, in this configuration, the reboiler can be provided with a liquid level gauge, and the liquid level height of the liquid in the shell 11 can be known through the liquid level gauges arranged above and below, so as to help inject a suitable amount of liquid and stop the operation of the reboiler in time to ensure the smooth operation of the reboiler.

[0082] It should be noted that the reboiler may be provided with any one or two of the first pipe opening 116, the second pipe opening 117, and the third pipe opening 118, or may be provided with all three of the first pipe opening 116, the second pipe opening 117, and the third pipe opening 118 at the same time.

[0083] It is worth noting that the opening on the side wall of the shell 11 with a glass-lined structure usually adopts a flange-type pipe opening, and a corrosion-resistant cover plate is fixed by a clip to close the opening. When it is necessary to connect an external test piece or a pipeline, a through hole is opened on the cover plate, and the end of the test piece, pipeline, etc. is set at the through hole of the cover plate. Welding or threaded connection can be used. Specifically, the above-mentioned liquid port 111, steam port 112, first installation port 113, second installation port 114, first pipe port 116, second pipe port 117, third pipe port 118, and the positions where the water outlet pipe 22 and the steam inlet pipe 21 are set on the side wall of the shell 11 can all adopt this structure.

[0084] It should be noted that the relational terms such as "first" and "second" mentioned above are merely used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities; the "upper surface, lower surface, top, bottom" and the directional words "upper, lower, left, right" mentioned above are all defined based on the drawings in the specification.

[0085] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] The horizontal reboiler provided by the utility model is introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A horizontal reboiler, characterized in that: include: A shell assembly (1) comprises a shell (11) and a first cover (12); the shell (11) has a liquid port (111) at the bottom, a steam port (112) at the top, and a first mounting port (113) at the side; the first cover (12) is arranged at the first mounting port (113) to close the first mounting port (113); and the inner layers of the shell (11) and the first cover (12) are glass-lined layers; The heat exchange component (2) is a 0Cr18Ni12Mo2Ti stainless steel component, comprising a steam inlet pipe (21), a water outlet pipe (22), and at least two sets of heat exchange coils (23); the steam inlet pipe (21), the water outlet pipe (22), and each set of the heat exchange coils (23) can all pass through the first installation port (113); the first end of the steam inlet pipe (21) is connected to the inlet of each of the heat exchange coils (23); the first end of the water outlet pipe (22) is connected to the outlet of each of the heat exchange coils (23); and the second end of the steam inlet pipe (21) and the second end of the water outlet pipe (22) both pass through the shell component (1) to be connected to the outside thereof; The support assembly (3) comprises a support member (31) arranged at the bottom of the shell (11) to support the heat exchange assembly (2), and each of the heat exchange coils (23) is placed on the top of the support member (31).

2. The horizontal reboiler according to claim 1, characterized in that: The side wall of the housing (11) further comprises at least two groups of opposite second installation openings (114), and the opposite second installation openings (114) are collinear in the vertical direction; The number of the support members (31) is at least two, and each of the support members (31) is inserted into a corresponding collinear second mounting opening (114); The housing assembly (1) further comprises a second cover body (13), wherein the second cover body (13) is arranged at the second installation opening (114) to close the second installation opening (114).

3. The horizontal reboiler according to claim 2, characterized in that: The end of the support member (31) is sleeved with a tetrafluoroethylene bushing, and the tetrafluoroethylene bushing is clamped between the housing (11) and the support member (31); And / or, the side wall of the shell (11) has three groups of collinear second mounting openings (114), the number of the support members (31) is three, and one of the support members (31) is located at the first end of the heat exchange coil (23), another of the support members (31) is located at the second end of the heat exchange coil (23), and the remaining one of the support members (31) is located in the middle of the heat exchange coil (23); And / or, the support member (31) is a tubular structure.

4. The horizontal reboiler according to claim 2, characterized in that: The middle part of the heat exchange coil (23) is a spiral structure, one end of the spiral structure is located at the top thereof, and the other end of the spiral structure passes through the middle through hole thereof and extends from the bottom toward the top thereof.

5. The horizontal reboiler according to claim 4, characterized in that: Each of the heat exchange coils (23) comprises at least three heat conducting pipes; The heat exchange assembly (2) further comprises a phase collecting pipe (24), the phase collecting pipe (24) comprising a first main pipe (241) and at least three first branch pipes (242) connected to the first main pipe (241), the first main pipe (241) being flange-connected to the steam inlet pipe (21) or the water outlet pipe (22), and the first branch pipe (242) being flange-connected to the inlet or outlet of each of the heat conducting pipes in the corresponding heat exchange coil (23).

6. The horizontal reboiler according to claim 5, characterized in that: The steam inlet pipe (21) and the water outlet pipe (22) both include a connecting pipe (222) and a wall-mounted pipe (221) disposed on the side wall of the shell (11); The connecting pipe (222) comprises a second main pipe (2221) and at least two second branch pipes (2222) connected to the second main pipe (2221); the second main pipe (2221) is flange-connected to the wall-mounted pipe (221); and each of the second branch pipes (2222) is flange-connected to the corresponding first main pipe (241).

7. The horizontal reboiler according to any one of claims 1 to 6, characterized in that: The outer side of the side wall of the shell (11) is provided with a corresponding connection seat (14), and each of the connection seats (14) has a first mounting through hole along the longitudinal direction; It also includes a saddle (4) having a receiving groove on its top, the shell (11) being embedded in the receiving groove, the top flange of the saddle (4) having a second mounting through hole along the longitudinal direction, bolts being inserted into the first mounting through hole and the second mounting through hole, and the free ends of the bolts being spirally connected with nuts.

8. The horizontal reboiler according to any one of claims 1 to 6, characterized in that: The number of the heat exchange coils (23) is three or four sets.

9. The horizontal reboiler according to any one of claims 1 to 6, characterized in that: The outer layers of the shell (11) and the first cover (12) are carbon steel layers.

10. The horizontal reboiler according to any one of claims 1 to 6, characterized in that: The bottom of the housing (11) also has a waste opening (115); The top of the housing (11) has a first pipe opening (116) for installing a pressure gauge; The top of the housing (11) is used to install a second nozzle (117) of a thermometer; The top and bottom of the side wall of the housing (11) are both provided with a third pipe opening (118) for installing a liquid level meter.

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