Intercooling and after-cooling horizontal type stacked suite of oilless air compressor

Abstract

The utility model belongs to the technical field of heat exchangers, and discloses an oil-free air compressor intercooling and after-cooling horizontal superposition suite which comprises an intercooling device and an after-cooling device, the intercooling device and the after-cooling device are transversely and horizontally superposed and connected, the intercooling device is arranged below the after-cooling device, the after-cooling device is arranged above the intercooling device, and the after-cooling device is arranged below the after-cooling device. The left end of the intercooling device is connected with primary compressed air of the oilless air compressor, the right end of the intercooling device discharges treated primary compressed air, the left end of the after-cooling device is connected with secondary compressed air of the oilless air compressor, and the right end of the after-cooling device discharges treated secondary compressed air. And cooling water is introduced and discharged from the front side parts of the inter-cooling device and the post-cooling device. According to the utility model, the intercooling device and the post-cooling device are horizontally overlapped and matched, so that the oil-free air compressor is cooled with low energy consumption, the production cost is reduced, and the occupied area is reduced and the space utilization rate is improved by utilizing a horizontal overlapping connection mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and more specifically, it relates to a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor. Background Art

[0002] During the daily operation of an oil-free air compressor, a large amount of heat is undoubtedly generated during its internal mechanical movement and compression process. If this heat is not processed in a timely and effective manner, it will not only affect the performance of the air compressor, reducing its working efficiency, but may even cause its key components to deform and discolor due to overheating. More seriously, when the heat accumulates to a certain extent, the air compressor may face the extreme risk of explosion, which undoubtedly poses a great hidden danger to production safety.

[0003] Facing this challenge, traditional cooling methods mainly rely on external cooling devices such as fans and water cooling systems. Although these devices can reduce the temperature of the air compressor to a certain extent, the effect is not always ideal. Especially in high-temperature environments, their cooling effect is greatly reduced. In addition, these external cooling devices not only require additional energy supply, increasing the energy consumption cost, but also need regular maintenance, further increasing the operating cost of the enterprise.

[0004] Therefore, the utility model provides a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor to solve the problems raised in the above background art.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] A horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor includes an intercooling device and an aftercooling device. The intercooling device and the aftercooling device are horizontally superposed and connected and placed. The intercooling device is placed below the aftercooling device, and the aftercooling device is placed above the intercooling device. The left end of the intercooling device accesses the primary compressed air of the oil-free air compressor, and the right end of the intercooling device discharges the processed primary compressed air. The left end of the aftercooling device accesses the secondary compressed air of the oil-free air compressor, and the right end of the aftercooling device discharges the processed secondary compressed air. The front sides of the intercooling device and the aftercooling device are both connected to and discharge cooling water.

[0008] As a further preferred technical solution of the present utility model, the intercooling device is provided with an intercooling heat exchange assembly. A support and fixing assembly for fixing and supporting is welded to the lower side of the intercooling heat exchange assembly. A first stacking connection assembly is welded to the upper side of the intercooling heat exchange assembly. The intercooling heat exchange assembly is horizontally stacked and connected with the aftercooling device in a transverse direction through the first stacking connection assembly.

[0009] As a further preferred technical solution of the present utility model, the intercooling heat exchange assembly includes an intercooling heat exchange shell. A first heat exchange tube bank is arranged inside the intercooling heat exchange shell. Fixing tube plates for fixing the first heat exchange tube bank to both sides of the intercooling heat exchange shell are respectively arranged at both ends of the first heat exchange tube bank. The fixing tube plate on the left side of the intercooling heat exchange shell is connected to an intercooling air inlet end cover. The fixing tube plate on the right side of the intercooling heat exchange shell is connected to an intercooling air outlet end cover. A first air inlet is arranged on the front side of the intercooling air inlet end cover. A first air outlet is arranged on the front side of the intercooling air outlet end cover. A first cooling water inlet and a first cooling water outlet communicating with the inside of the intercooling heat exchange shell are arranged on the front side of the intercooling heat exchange shell. A plurality of baffles distributed in a staggered manner are arranged on the first heat exchange tube bank inside the intercooling heat exchange shell. Cavities respectively formed between the intercooling air inlet end cover and the left fixing tube plate and between the intercooling air outlet end cover and the right fixing tube plate communicate with both ends of the first heat exchange tube bank respectively.

[0010] As a further preferred technical solution of the present utility model, circular flange ends are arranged at both the left end and the right end of the intercooling heat exchange shell. A plurality of groups of screw holes distributed in a circumferential array are opened on the flange ends of the intercooling heat exchange shell. Circular flange parts are arranged at both the first cooling water inlet and the first cooling water outlet. A plurality of groups of screw holes distributed in a circumferential array are opened on the flange parts of the first cooling water inlet and the first cooling water outlet. The first cooling water inlet and the first cooling water outlet are respectively screwed to external pipelines or valves through their flange parts;

[0011] A plurality of groups of fixing round holes for fixing the first heat exchange tube bank are opened in the center of the fixing tube plate. A plurality of groups of screw holes distributed in a circumferential array are opened along the outer contour circumference of the fixing tube plate;

[0012] Both the intercooling air inlet end cover excluding the first air inlet and the intercooling air outlet end cover excluding the first air outlet are in a cylindrical shape. Circular flange ends are arranged at the right end of the intercooling air inlet end cover and the left end of the intercooling air outlet end cover. A plurality of groups of screw holes distributed in a circumferential array are opened on the flange ends of the intercooling air inlet end cover and the intercooling air outlet end cover. Circular flange parts are arranged at the front ends of both the first air inlet and the first air outlet. A plurality of groups of screw holes distributed in a circumferential array are opened on the flange parts of the first air inlet and the first air outlet. The first air inlet and the first air outlet are respectively screwed to external pipelines or valves through their flange parts;

[0013] The intercooling heat exchange shell, the fixed tube sheet, the intercooling air inlet end cover, and the intercooling air outlet end cover are screwed together through the screw holes at the flange end of the intercooling heat exchange shell, the screw holes of the fixed tube sheet, the screw holes at the flange end of the intercooling air inlet end cover, the screw holes at the flange end of the intercooling air outlet end cover, studs, and nuts.

[0014] As a further preferred technical solution of the present invention, the aftercooling device is provided with an aftercooling heat exchange assembly. A second superimposed connection assembly is welded to the lower side of the aftercooling heat exchange assembly, and an additional connection assembly is welded to the upper side of the aftercooling heat exchange assembly. The aftercooling heat exchange assembly is horizontally superimposed and connected to the intercooling device through the second superimposed connection assembly.

[0015] As a further preferred technical solution of the present invention, the aftercooling heat exchange assembly includes an aftercooling heat exchange shell. A second heat exchange tube bundle is provided inside the aftercooling heat exchange shell. Fixed tube sheets for fixing the second heat exchange tube bundle to both sides of the aftercooling heat exchange shell are respectively provided at both ends of the second heat exchange tube bundle. The left fixed tube sheet of the aftercooling heat exchange shell is connected to the aftercooling air inlet end cover, and the right fixed tube sheet of the aftercooling heat exchange shell is connected to the aftercooling air outlet end cover. A second air inlet is provided on the left side of the aftercooling air inlet end cover, and a second air outlet is provided on the upper side of the aftercooling air outlet end cover. A second cooling water inlet and a second cooling water inlet communicating with the inside of the aftercooling heat exchange shell are provided on the front side of the aftercooling heat exchange shell. A plurality of baffle plates distributed in a staggered manner are provided on the second heat exchange tube bundle inside the aftercooling heat exchange shell. Cavities respectively formed between the aftercooling air inlet end cover and the left fixed tube sheet and between the aftercooling air outlet end cover and the right fixed tube sheet communicate with both ends of the second heat exchange tube bundle.

[0016] As a further preferred technical solution of the present invention, circular flange ends are provided at both the left end and the right end of the aftercooling heat exchange shell. A plurality of groups of screw holes arranged in a circumferential array are opened on the flange ends of the aftercooling heat exchange shell. Circular flange parts are provided at both the second cooling water inlet and the second cooling water outlet. A plurality of groups of screw holes arranged in a circumferential array are opened on the flange parts of the second cooling water inlet and the second cooling water outlet. Both the second cooling water inlet and the second cooling water outlet are screwed to external pipelines or valves through their flange parts;

[0017] A plurality of groups of fixed round holes for fixing the second heat exchange tube bundle are opened in the center of the fixed tube sheet, and a plurality of groups of screw holes arranged in a circumferential array are opened along the outer circumference of the fixed tube sheet;

[0018] The second air inlet of the post-cooling air inlet end cover is hemispherical, and the second air outlet of the post-cooling air outlet end cover is cylindrical. A circular flange end is provided at the right end of the post-cooling air inlet end cover and the left end of the post-cooling air outlet end cover. A number of groups of screw holes are provided in the flange ends of the post-cooling air inlet end cover and the post-cooling air outlet end cover in a circumferential array. Circular flange parts are provided at the front ends of the second air inlet and the second air outlet. A number of groups of screw holes are provided in the flange parts of the second air inlet and the second air outlet in a circumferential array. The second air inlet and the second air outlet are screwed to external pipelines or valves through the respective flange parts;

[0019] The post-cooling heat exchange tube shell, the fixed tube sheet, the post-cooling air inlet end cover, and the post-cooling air outlet end cover are screwed together through the screw holes in the flange end of the post-cooling heat exchange tube shell, the screw holes of the fixed tube sheet, the screw holes in the flange end of the post-cooling air inlet end cover, the screw holes in the flange end of the post-cooling air outlet end cover, studs, and nuts.

[0020] As a further preferred technical solution of the present invention, both the support and fixing assembly and the additional connection assembly include a pair of first bracket mechanisms. The first bracket mechanism is provided with a first ribbed support column, which is welded to the intercooling heat exchange assembly or the post-cooling heat exchange assembly. A first support plate is welded to the bottom end of the first ribbed support column. The first ribbed support column is placed in the center of the first support plate. Circular through holes are provided at the four corners of the first support plate;

[0021] Both the first superimposed connection assembly and the second superimposed connection assembly include a pair of second bracket mechanisms. The second bracket mechanism is provided with a second ribbed support column, which is welded to the intercooling heat exchange assembly or the post-cooling heat exchange assembly. A second support plate is welded to the bottom end of the second ribbed support column. Circular through holes are provided in the first support plate;

[0022] The first superimposed connection assembly and the second superimposed connection assembly are screwed through the circular through holes in the second support plate, studs, and nuts, and are welded together after screwing.

[0023] As a further preferred technical solution of the present invention, both the first heat exchange tube row and the second heat exchange tube row are composed of an array of a number of groups of heat exchange tubes. Nameplates are provided at the central front sides of the intercooling heat exchange tube shell and the post-cooling heat exchange tube shell.

[0024] As a further preferred technical solution of the present invention, when the intercooling heat exchange tube shell, the fixed tube sheet, the intercooling air inlet end cover, and the intercooling air outlet end cover are screwed together, sealing gaskets are provided between every two components;

[0025] When the post-cooling heat exchange tube shell, the fixed tube sheet, the post-cooling air inlet end cover, and the post-cooling air outlet end cover are screwed together, sealing gaskets are provided between every two components.

[0026] As described above, a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor provided by the present utility model has the following beneficial effects:

[0027] By using the above horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor, due to adopting such a structure, through the horizontal horizontal superposition and cooperation setting of the intercooler device and the aftercooler device, the primary compressed air and the secondary compressed air of the oil-free air compressor are cooled by means of step-by-step collaborative cooperation and the flow of cooling water, so as to realize low-energy consumption cooling of the oil-free air compressor, reduce production costs, and also use the horizontal superposition connection method to reduce the floor area and improve the space utilization rate.

[0028] Some of the additional aspects and advantages of the present utility model will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor applied for by the present utility model;

[0031] Figure 2 It is a schematic structural diagram of the intercooler device of a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor applied for by the present utility model;

[0032] Figure 3 It is a top view of the intercooler device of a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor applied for by the present utility model;

[0033] Figure 4 For Figure 3 The cross-sectional view in the A-A direction;

[0034] Figure 5 It is a schematic structural diagram of the aftercooler device of a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor applied for by the present utility model;

[0035] Figure 6 It is a top view of the aftercooler device of a horizontal superposition kit for the intercooler and aftercooler of an oil-free air compressor applied for by the present utility model;

[0036] Figure 7 For Figure 6Cross-sectional view in the B-B direction

[0037] Summary of reference numerals and their descriptions:

[0038] 100, intercooling device; 110, intercooling heat exchange component; 111, intercooling heat exchange tube shell; 112, first heat exchange tube; 113, intercooling air inlet end cover; 114, intercooling air outlet end cover; 120, support and fixing component; 130, first superimposed connection component; 200, aftercooling device; 210, aftercooling heat exchange component; 211, aftercooling heat exchange tube shell; 212, second heat exchange tube; 213, aftercooling air inlet end cover; 214, aftercooling air outlet end cover; 220, second superimposed connection component; 230, additional connection component; 300, fixed tube sheet; 400, baffle plate Detailed implementation manners

[0039] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification

[0040] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for convenience of description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model. The specific structure can be described with reference to the drawings of the patent application

[0041] The present utility model provides an oil-free air compressor intercooling and aftercooling horizontal superimposed kit. Please refer to Figures 1 to 7 As shown, it includes an intercooling device 100 and an aftercooling device 200. The intercooling device 100 and the aftercooling device 200 are horizontally and horizontally superimposed and connected for placement. The intercooling device 100 is placed below the aftercooling device 200, and the aftercooling device 200 is placed above the intercooling device 100. The left end of the intercooling device 100 accesses the primary compressed air of the oil-free air compressor, the right end of the intercooling device 100 discharges the processed primary compressed air, the left end of the aftercooling device 200 accesses the secondary compressed air of the oil-free air compressor, the right end of the aftercooling device 200 discharges the processed secondary compressed air, and the front sides of the intercooling device 100 and the aftercooling device 200 are both connected to and discharge cooling water

[0042] It should be noted that: through the horizontal horizontal superposition and cooperation setting of the intercooling device 100 and the aftercooling device 200, the primary compressed air and the secondary compressed air of the oil-free air compressor are cooled by means of step-by-step cooperative cooperation and the flow of cooling water, so as to realize low-energy consumption cooling of the oil-free air compressor, reduce production costs, and also use the horizontal superposition connection method to reduce the floor area and improve the space utilization rate.

[0043] Specifically, the specific structure of the intercooling device 100 is as follows, combined with Figure 1 and Figure 2 As shown, the intercooling device 100 is provided with an intercooling heat exchange assembly 110. A support and fixing assembly 120 for fixing and supporting is welded to the lower side of the intercooling heat exchange assembly 110. A first superposition connection assembly 130 is welded to the upper side of the intercooling heat exchange assembly 110. The intercooling heat exchange assembly 110 is horizontally and horizontally superposed and connected with the aftercooling device 200 through the first superposition connection assembly 130.

[0044] Specifically, the specific structure of the intercooling heat exchange assembly 110 is as follows, combined with Figure 2 , Figure 3 and Figure 4 As shown, the intercooling heat exchange assembly 110 includes an intercooling heat exchange tube shell 111. A first heat exchange tube row 112 is arranged inside the intercooling heat exchange tube shell 111. Fixing tube plates 300 for fixing the first heat exchange tube row 112 to both sides of the intercooling heat exchange tube shell 111 are respectively arranged at both ends of the first heat exchange tube row 112. The fixing tube plate 300 on the left side of the intercooling heat exchange tube shell 111 is connected to the intercooling air inlet end cover 113. The fixing tube plate 300 on the right side of the intercooling heat exchange tube shell 111 is connected to the intercooling air outlet end cover 114. A first air inlet is arranged on the front side of the intercooling air inlet end cover 113. A first air outlet is arranged on the front side of the intercooling air outlet end cover 114. A first cooling water inlet and a first cooling water outlet communicating with the inside of the intercooling heat exchange tube shell 111 are arranged on the front side of the intercooling heat exchange tube shell 111. A plurality of staggered baffles 400 are arranged on the first heat exchange tube row 112 inside the intercooling heat exchange tube shell 111. Cavities respectively formed between the intercooling air inlet end cover 113 and the left fixing tube plate 300 and between the intercooling air outlet end cover 114 and the right fixing tube plate 300 communicate with both ends of the first heat exchange tube row 112;

[0045] Both the left end and the right end of the intercooling heat exchange shell 111 are provided with annular flange ends. A number of groups of screw holes are arranged in a circumferential array on the flange ends of the intercooling heat exchange shell 111. Both the first cooling water inlet and the first cooling water outlet are provided with annular flange parts. A number of groups of screw holes are arranged in a circumferential array on the flange parts of the first cooling water inlet and the first cooling water outlet. The first cooling water inlet and the first cooling water outlet are both screwed to external pipelines or valves through their flange parts;

[0046] A number of groups of fixing round holes for fixing the first heat exchange tubes 112 are arranged in the center of the fixed tube sheet 300. A number of groups of screw holes are arranged in a circumferential array along the outer contour of the fixed tube sheet 300;

[0047] Both the first air inlet of the intercooling air inlet end cover 113 and the first air outlet of the intercooling air outlet end cover 114 are in a cylindrical shape. The right end of the intercooling air inlet end cover 113 and the left end of the intercooling air outlet end cover 114 are provided with annular flange ends. A number of groups of screw holes are arranged in a circumferential array on the flange ends of the intercooling air inlet end cover 113 and the intercooling air outlet end cover 114. The front ends of both the first air inlet and the first air outlet are provided with annular flange parts. A number of groups of screw holes are arranged in a circumferential array on the flange parts of the first air inlet and the first air outlet. The first air inlet and the first air outlet are screwed to external pipelines or valves through their respective flange parts;

[0048] The intercooling heat exchange shell 111, the fixed tube sheet 300, the intercooling air inlet end cover 113 and the intercooling air outlet end cover 114 are screwed together through the screw holes of the flange end of the intercooling heat exchange shell 111, the screw holes of the fixed tube sheet 300, the screw holes of the flange end of the intercooling air inlet end cover 113, the screw holes of the flange end of the intercooling air outlet end cover 114, studs and nuts.

[0049] Specifically, the specific structure of the aftercooling device 200 is as follows. Combining Figure 1 and Figure 5 As shown, the aftercooling device 200 is provided with an aftercooling heat exchange assembly 210. A second superimposed connection assembly 220 is welded to the lower side of the aftercooling heat exchange assembly 210. An additional connection assembly 230 is welded to the upper side of the aftercooling heat exchange assembly 210. The additional connection assembly 230 is used for connecting the hoisting device. The aftercooling heat exchange assembly 210 is horizontally and horizontally superimposed and connected to the intercooling device 100 through the second superimposed connection assembly 220.

[0050] Specifically, the specific structure of the aftercooling heat exchange assembly 210 is as follows. Combining Figure 5 、 Figure 6 and Figure 7As shown, the post-cooling heat exchange assembly 210 includes a post-cooling heat exchange shell 211. Inside the post-cooling heat exchange shell 211, there are second heat exchange tubes 212. At both ends of the second heat exchange tubes 212, there are fixed tube sheets 300 that fix the second heat exchange tubes 212 on both sides of the post-cooling heat exchange shell 211. The left fixed tube sheet 300 of the post-cooling heat exchange shell 211 is connected to the post-cooling air inlet end cover 213, and the right fixed tube sheet 300 of the post-cooling heat exchange shell 211 is connected to the post-cooling air outlet end cover 214. On the left side of the post-cooling air inlet end cover 213, there is a second air inlet, and on the upper side of the post-cooling air outlet end cover 214, there is a second air outlet. On the front side of the post-cooling heat exchange shell 211, there are a second cooling water inlet and a second cooling water inlet that communicate with the inside of the post-cooling heat exchange shell 211. On the second heat exchange tubes 212 inside the post-cooling heat exchange shell 211, there are a plurality of baffle plates 400 distributed in a staggered manner. The cavities respectively formed between the post-cooling air inlet end cover 213 and the left fixed tube sheet 300 and between the post-cooling air outlet end cover 214 and the right fixed tube sheet 300 communicate with both ends of the second heat exchange tubes 212;

[0051] At both the left end and the right end of the post-cooling heat exchange shell 211, there are annular flange ends. On the flange ends of the post-cooling heat exchange shell 211, there are several groups of screw holes distributed in a circumferential array. Both the second cooling water inlet and the second cooling water outlet are provided with annular flange parts. On the flange parts of the second cooling water inlet and the second cooling water outlet, there are several groups of screw holes distributed in a circumferential array. Both the second cooling water inlet and the second cooling water outlet are screwed to external pipelines or valves through their flange parts;

[0052] In the center of the fixed tube sheet 300, there are several groups of fixed round holes for fixing the second heat exchange tubes 212. Along the outer circumference of the fixed tube sheet 300, there are several groups of screw holes distributed in a circumferential array;

[0053] Except for the second air inlet, the post-cooling air inlet end cover 213 is hemispherical. Except for the second air outlet, the post-cooling air outlet end cover 214 is cylindrical. At the right end of the post-cooling air inlet end cover 213 and the left end of the post-cooling air outlet end cover 214, there are annular flange ends. On the flange ends of the post-cooling air inlet end cover 213 and the post-cooling air outlet end cover 214, there are several groups of screw holes distributed in a circumferential array. At the front ends of both the second air inlet and the second air outlet, there are annular flange parts. On the flange parts of both the second air inlet and the second air outlet, there are several groups of screw holes distributed in a circumferential array. Both the second air inlet and the second air outlet are screwed to external pipelines or valves through their respective flange parts;

[0054] The post-cooling heat exchange shell 211, the fixed tube sheet 300, the post-cooling air inlet end cover 213, and the post-cooling air outlet end cover 214 are screwed together through the screw holes at the flange end of the post-cooling heat exchange shell 211, the screw holes of the fixed tube sheet 300, the screw holes at the flange end of the post-cooling air inlet end cover 213, the screw holes at the flange end of the post-cooling air outlet end cover 214, studs, and nuts.

[0055] Specifically, the specific structures of the support and fixation assembly 120, the additional connection assembly 230, the first superimposed connection assembly 130, and the second superimposed connection assembly 220 are as follows. Referring to Figures 1 to 7 As shown, both the support and fixation assembly 120 and the additional connection assembly 230 include a pair of first bracket mechanisms. The first bracket mechanism is provided with a first ribbed support column, which is welded to the inter-cooling heat exchange assembly 110 or the post-cooling heat exchange assembly 210. A first support plate is welded to the bottom end of the first ribbed support column. The first ribbed support column is placed at the center of the first support plate, and circular through-holes are formed at the four corners of the first support plate.

[0056] Both the first superimposed connection assembly 130 and the second superimposed connection assembly 220 include a pair of second bracket mechanisms. The second bracket mechanism is provided with a second ribbed support column, which is welded to the inter-cooling heat exchange assembly 110 or the post-cooling heat exchange assembly 210. A second support plate is welded to the bottom end of the second ribbed support column, and circular through-holes are formed in the first support plate.

[0057] The first superimposed connection assembly 130 and the second superimposed connection assembly 220 are screwed through the circular through-holes of the second support plate, studs, and nuts, and are welded together after screwing to ensure the connection strength between the inter-cooling device 100 and the post-cooling device 200.

[0058] Both the first heat exchange tube bundle 112 and the second heat exchange tube bundle 212 are composed of several groups of heat exchange tubes arranged in an array. Nameplates are provided at the central front sides of the inter-cooling heat exchange shell 111 and the post-cooling heat exchange shell 211.

[0059] When the inter-cooling heat exchange shell 111, the fixed tube sheet 300, the inter-cooling air inlet end cover 113, and the inter-cooling air outlet end cover 114 are screwed, gaskets are provided between every two components; when the post-cooling heat exchange shell 211, the fixed tube sheet 300, the post-cooling air inlet end cover 213, and the post-cooling air outlet end cover 214 are screwed, gaskets are provided between every two components. The provision of the gaskets enhances the sealing performance of the inter-cooling device 100 and the post-cooling device 200 and improves the heat exchange efficiency of the inter-cooling device 100 and the post-cooling device 200.

[0060] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A horizontal stacking kit for oil-free air compressor with intercooler and aftercooler, characterized in that: It includes an intercooler and an aftercooler, which are placed in a horizontal and stacked manner, the intercooler is placed below the aftercooler, and the aftercooler is placed above the intercooler, the left end of the intercooler is connected to the first-stage compressed air of the oil-free air compressor, and the right end of the intercooler discharges the processed first-stage compressed air, the left end of the aftercooler is connected to the second-stage compressed air of the oil-free air compressor, and the right end of the aftercooler discharges the processed second-stage compressed air, and the front sides of the intercooler and the aftercooler are both connected to and discharge cooling water.

2. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 1, characterized in that: The intercooler device is provided with an intercooler heat exchange component, a support fixing component for fixing support is welded on the lower side of the intercooler heat exchange component, a first stacking connection component is welded on the upper side of the intercooler heat exchange component, and the intercooler heat exchange component is placed in a horizontal and stacked manner with the aftercooler device through the first stacking connection component.

3. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 2, characterized in that: The intercooler heat exchange assembly includes an intercooler heat exchange tube shell, wherein a first heat exchange column tube is arranged in the intercooler heat exchange tube shell, and fixed tube sheets for fixing the first heat exchange column tube to both sides of the intercooler heat exchange tube shell are respectively arranged at two ends of the first heat exchange column tube, the left fixed tube sheet of the intercooler heat exchange tube shell is connected to the intercooler air inlet end cover, and the right fixed tube sheet of the intercooler heat exchange tube shell is connected to the intercooler air outlet end cover, the front side of the intercooler air inlet end cover is provided with a first air inlet, and the front side of the intercooler air outlet end cover is provided with a first cooling water inlet and a first cooling water outlet that are communicated with the interior of the intercooler heat exchange tube shell on the front side of the intercooler heat exchange tube shell, and a plurality of staggered baffles are arranged on the first heat exchange column tube in the intercooler heat exchange tube shell, and the cavities respectively formed between the intercooler air inlet end cover and the left fixed tube sheet and between the intercooler air outlet end cover and the right fixed tube sheet are respectively communicated with the two ends of the first heat exchange column tube.

4. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 3, characterized in that: The left and right ends of the intercooler heat exchange tube shell are both provided with annular flange ends, and the flange ends of the intercooler heat exchange tube shell are provided with a plurality of groups of screw holes distributed in a circumferential array, and the first cooling water inlet and the first cooling water outlet are both provided with annular flange parts, and the flange parts of the first cooling water inlet and the first cooling water outlet are provided with a plurality of groups of screw holes distributed in a circumferential array, and the first cooling water inlet and the first cooling water outlet are both screwed to an external pipe or valve through their flange parts; The fixed tube sheet is provided with a plurality of groups of fixing circular holes in the center thereof for fixing the first heat exchange tubes, and the fixed tube sheet is provided with a plurality of groups of screw holes distributed in a circumferential array along the circumference of the outer contour; The intercooler air inlet cover excluding the first air inlet and the intercooler air outlet cover excluding the first air outlet are both cylindrical, the right end of the intercooler air inlet cover and the left end of the intercooler air outlet cover are provided with annular flange ends, the flange ends of the intercooler air inlet cover and the intercooler air outlet cover are both provided with a plurality of groups of screw holes distributed in a circumferential array, the front ends of the first air inlet and the first air outlet are both provided with annular flange parts, the flange parts of the first air inlet and the first air outlet are both provided with a plurality of groups of screw holes distributed in a circumferential array, and the first air inlet and the first air outlet are screwed to an external pipe or valve through the flange parts; The intercooler heat exchange tube shell, the fixed tube sheet, the intercooler air inlet end cover and the intercooler air outlet end cover are screwed together through the screw holes at the flange end of the intercooler heat exchange tube shell, the screw holes at the fixed tube sheet, the screw holes at the flange end of the intercooler air inlet end cover, the screw holes at the flange end of the intercooler air outlet end cover, studs and nuts.

5. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 3 or 4, characterized in that: The after-cooling device is provided with an after-cooling heat exchange component, a second superimposed connecting component is welded on the lower side of the after-cooling heat exchange component, an additional connecting component is welded on the upper side of the after-cooling heat exchange component, and the after-cooling heat exchange component is horizontally superimposed and connected to the intercooling device through the second superimposed connecting component.

6. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 5, characterized in that: The heat dissipation device of the present invention is a heat dissipation device for dissipating the heat of the air in the heat dissipation pipe, and the heat dissipation device for dissipating the heat of the air in the heat dissipation pipe is used to dissipate the heat of the air in the heat dissipation pipe.

7. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 6, characterized in that: The left and right ends of the after-cooling heat exchange tube shell are both provided with annular flange ends, and the flange ends of the after-cooling heat exchange tube shell are provided with a plurality of groups of screw holes distributed in a circumferential array, and the second cooling water inlet and the second cooling water outlet are both provided with annular flange parts, and the flange parts of the second cooling water inlet and the second cooling water outlet are provided with a plurality of groups of screw holes distributed in a circumferential array, and the second cooling water inlet and the second cooling water outlet are both screwed to an external pipe or valve through their flange parts; The fixed tube sheet is provided with a plurality of groups of fixing circular holes in the center thereof for fixing the second heat exchange tubes, and the fixed tube sheet is provided with a plurality of groups of screw holes distributed in a circumferential array along the circumference of the outer contour; The rear cooling air inlet end cover excludes the second air inlet in a hemispherical shape, and the rear cooling air outlet end cover excludes the second air outlet in a cylindrical shape. The right end of the rear cooling air inlet end cover and the left end of the rear cooling air outlet end cover are provided with annular flange ends, and the flange ends of the rear cooling air inlet end cover and the rear cooling air outlet end cover are both provided with a plurality of groups of screw holes distributed in a circumferential array. The front ends of the second air inlet and the second air outlet are both provided with annular flange parts, and the flange parts of the second air inlet and the second air outlet are both provided with a plurality of groups of screw holes distributed in a circumferential array. The second air inlet and the second air outlet are screwed to an external pipe or valve through the flange parts. The after-cooling heat exchange tube shell, the fixed tube sheet, the after-cooling air inlet end cover and the after-cooling air outlet end cover are screwed together through the screw holes at the flange end of the after-cooling heat exchange tube shell, the screw holes at the fixed tube sheet, the screw holes at the flange end of the after-cooling air inlet end cover, the screw holes at the flange end of the after-cooling air outlet end cover, studs and nuts.

8. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 5, characterized in that: The supporting and fixing assembly and the additional connecting assembly each include a pair of first bracket mechanisms, the first bracket mechanism is provided with a first rib-shaped support column, the first rib-shaped support column is welded to the intercooling heat exchange assembly or the aftercooling heat exchange assembly, a first support plate is welded to the bottom end of the first rib-shaped support column, the first rib-shaped support column is placed in the center of the first support plate, and circular through holes are opened at the four corners of the first support plate; The first stacking connection assembly and the second stacking connection assembly each include a pair of second bracket mechanisms, the second bracket mechanism is provided with a second rib-shaped support column, the second rib-shaped support column is welded to the intercooling heat exchange assembly or the aftercooling heat exchange assembly, a second support plate is welded to the bottom end of the second rib-shaped support column, and a circular through hole is opened on the first support plate; The first superimposed connection assembly and the second superimposed connection assembly are screwed together through the circular through hole of the second support plate, the stud and the nut, and are welded together after being screwed together.

9. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 6, characterized in that: The first heat exchange tubes and the second heat exchange tubes are both composed of a plurality of groups of heat exchange tube arrays, and a nameplate is provided at the center of the front side of the intercooler heat exchange tube shell and the aftercooler heat exchange tube shell.

10. The oil-free air compressor intercooler and aftercooler horizontal stacking kit according to claim 7, characterized in that: When the intercooler heat exchange tube shell, the fixed tube sheet, the intercooler air inlet end cover and the intercooler air outlet end cover are screwed together, sealing gaskets are provided between the two components; When the after-cooling heat exchange tube shell, the fixed tube sheet, the after-cooling air inlet end cover and the after-cooling air outlet end cover are screwed together, sealing gaskets are arranged between the two components.

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