CN216159728U - Heat exchanger convenient to overhaul and pipe box structure thereof - Google Patents
Heat exchanger convenient to overhaul and pipe box structure thereof Download PDFInfo
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- CN216159728U CN216159728U CN202122184444.3U CN202122184444U CN216159728U CN 216159728 U CN216159728 U CN 216159728U CN 202122184444 U CN202122184444 U CN 202122184444U CN 216159728 U CN216159728 U CN 216159728U
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Abstract
The utility model relates to a heat exchanger convenient to overhaul and a pipe box structure thereof, which comprise a barrel, wherein two ends of the barrel are respectively connected with pipe plates (1), the two pipe plates (1) are respectively connected with a pipe box (2), the top of the pipe box (2) positioned at the upper part is vertically provided with a pipe orifice connecting cylinder (2.1), the pipe orifice connecting cylinder (2.1) is welded with a flange joint I (3), the other flange joint II (4) is welded with a fluid pipeline, the inner diameter of the pipe orifice connecting cylinder (2.1) is equal to the inner diameter of the flange joint I (3) and is not smaller than the inner diameter of a manhole, the inner diameter of the flange joint II (4) is smaller than the inner diameter of the flange joint I (3), and the inner diameter of the flange joint II (4) is consistent with the inner diameter of the fluid pipeline. The utility model relates to a heat exchanger convenient to overhaul and a pipe box structure thereof, which reserve a manhole channel on the premise of not increasing the length of the pipe box.
Description
Technical Field
The utility model relates to a heat exchanger convenient to overhaul and a pipe box structure thereof, and belongs to the technical field of heat exchangers.
Background
The heat exchanger can be out of order inevitably in the use, need overhaul this moment, especially to large-scale heat exchanger, some emergency need get into the inside just can salvage of heat exchanger through the manhole. Therefore, a manhole structure needs to be arranged on the heat exchanger to facilitate access of maintenance operators, and the conventional method in the industry at present is as shown in Chinese patent CN201921510611.5, "a large heat exchanger convenient for first-aid repair", wherein the manhole is arranged on the side wall of the tube box to facilitate the access of the maintenance operators into the heat exchanger for maintenance operation; however, the length of the pipe box is required to be larger than the diameter of the manhole, the diameter of the manhole is required to be 450mm, and the length of the pipe box is required to be not less than 900mm after the manhole is opened in order to ensure the structural strength of the side wall of the pipe box; the structure can be adopted on common occasions, but for some plants with limited installation height and space, the design requirement is that the length of the pipe box is reduced as much as possible, so that the installation space of the manhole cannot be reserved. Therefore, it is desirable to design a structure that can solve the above problems.
Disclosure of Invention
The utility model aims to overcome the defects and provide a heat exchanger convenient to overhaul and a pipe box structure thereof, wherein a manhole channel is reserved on the premise of not increasing the length of the pipe box.
The purpose of the utility model is realized as follows:
a heat exchanger convenient to overhaul comprises a cylinder body, wherein two ends of the cylinder body are respectively connected with a tube plate, the two tube plates are respectively connected with a tube box, the top of the tube box positioned at the upper part is vertically provided with a tube opening connecting cylinder, the tube opening connecting cylinder is welded with a first flange joint, the other second flange joint is welded with a fluid pipeline, the inner diameter of the tube opening connecting cylinder is equal to the inner diameter of the first flange joint and not smaller than the inner diameter (450 mm) of a manhole, the inner diameter of the second flange joint is smaller than the inner diameter of the first flange joint, and the inner diameter of the second flange joint is consistent with the inner diameter of the fluid pipeline; the inner hole of the flange joint II is a taper hole, the lower aperture of the taper hole is equal to the inner aperture of the flange joint I, and the aperture of the taper hole is gradually reduced from bottom to top and is consistent with the inner diameter of the fluid pipeline.
The utility model provides a tub case structure convenient to overhaul, tub upper portion mouth of pipe connecting cylinder of case, the welding has flange joint one on the mouth of pipe connecting cylinder, the internal diameter of flange joint one and the internal diameter of mouth of pipe connecting cylinder are not less than manhole internal diameter (450 mm).
Compared with the prior art, the utility model has the beneficial effects that:
the pipe orifice connecting cylinder is enlarged to the size of a manhole, so that the pipe orifice connecting cylinder can be used as an inspection manhole, an inspection operator can enter the heat exchanger for inspection through the inner hole of the flange joint I and the pipe orifice connecting cylinder, and compared with the conventional structure, the size of the pipe orifice connecting cylinder of the conventional structure is far smaller than that of the manhole as the size of a fluid pipeline for leading out a pipe pass medium is consistent with that of the fluid pipeline, so that the pipe orifice connecting cylinder has to lengthen the length of a pipe box in a mode of opening the side wall of the pipe box.
Meanwhile, due to the fact that a manhole does not need to be additionally arranged, the structure strength of the pipe box is guaranteed, the production process flow of the heat exchanger is simplified, and the production efficiency and the assembly efficiency of the heat exchanger are improved.
Drawings
Fig. 1 is a schematic view of a tube box structure of a heat exchanger convenient for maintenance according to the present invention.
Wherein:
a tube plate 1, a tube box 2, a first flange joint 3, a second flange joint 4, a gasket 5,
A nozzle connecting cylinder 2.1.
Detailed Description
Referring to fig. 1, the heat exchanger convenient for maintenance related to the utility model comprises a cylinder body, two ends of the cylinder body are respectively connected with tube plates 1 for inserting and guiding in tubes of tube pass media, two tube plates 1 are respectively connected with tube boxes 2, a tube opening connecting cylinder 2.1 is vertically arranged at the top of the tube box 2 at the upper part, the tube opening connecting cylinder 2.1 is welded with a flange joint I3 for guiding out the tube pass media, the other flange joint II 4 is welded with a fluid tube for guiding out the tube pass media, the flange joint I3 is connected with the flange joint II 4 through bolts, gaskets 5 are padded on the annular surfaces of involutory flanges of the flange joint I3 and the flange joint II 4, the inner diameter of the tube opening connecting cylinder 2.1 is equal to the inner diameter of the flange joint I3 and not less than 450mm, so that the heat exchanger can be used as a manhole channel, the inner diameter of the flange joint II 4 is less than the inner diameter of the flange joint I3, the inner aperture of the flange joint II 4 is consistent with the inner diameter of the butted fluid pipeline for leading out the tube side medium; preferably, the inner hole of the second flange joint 4 is a taper hole, the lower aperture of the taper hole is equal to the inner aperture of the first flange joint 3, the aperture of the taper hole is gradually reduced from bottom to top until the upper aperture is equal to the inner diameter of the butted fluid pipeline for leading out the tube pass medium, so that the gradual reduction of the pipe diameter is realized, and the smooth outflow of the tube pass medium is ensured.
When the maintenance is needed, the connecting bolt between the flange joint I3 and the flange joint II 4 is unscrewed, and then the flange joint I3 with the size of a manhole enters the heat exchanger through the pipe orifice connecting cylinder 2.1 for maintenance.
Referring to fig. 1, a pipe box structure convenient to overhaul, pipe box 2 upper portion mouth of pipe connecting cylinder 2.1, the welding has flange joint one 3 on the mouth of pipe connecting cylinder 2.1, the internal diameter of flange joint one 3 equals and is not less than 450mm with the internal diameter of mouth of pipe connecting cylinder 2.1 to can regard as the people's well passageway to use, make things convenient for overhaul operating personnel to get into the inside operation of overhauing of heat exchanger through mouth of pipe connecting cylinder 2.1 after through flange joint one 3.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (5)
1. The utility model provides a heat exchanger convenient to overhaul, includes the barrel, and the barrel both ends are connected with tube sheet (1) respectively, are connected with pipe case (2) on two tube sheets (1) respectively, and the vertical mouth of pipe connecting cylinder (2.1) of installing in the top of pipe case (2) that are located upper portion, and mouth of pipe connecting cylinder (2.1) welds mutually with flange joint (3), and another flange joint two (4) and fluid pipeline welding, its characterized in that:
the inner diameter of the pipe orifice connecting cylinder (2.1) is equal to the inner diameter of the flange joint I (3) and is not smaller than the inner diameter of a manhole, the inner diameter of the flange joint II (4) is smaller than the inner diameter of the flange joint I (3), and the inner diameter of the flange joint II (4) is consistent with the inner diameter of the fluid pipeline.
2. The heat exchanger of claim 1, wherein: the inner diameter of the manhole is 450 mm.
3. The heat exchanger of claim 1, wherein: the inner hole of the second flange joint (4) is a taper hole, the lower aperture of the taper hole is equal to the inner aperture of the first flange joint (3), and the aperture of the taper hole is gradually reduced from bottom to top and is consistent with the inner diameter of the fluid pipeline.
4. The utility model provides a tub case structure convenient to overhaul, tub case (2) upper portion mouth of pipe connecting cylinder (2.1), the welding has flange joint (3), its characterized in that on mouth of pipe connecting cylinder (2.1): the inner diameter of the flange joint I (3) and the inner diameter of the pipe orifice connecting cylinder (2.1) are not smaller than the inner diameter of the manhole.
5. The easy-to-service tube box structure according to claim 4, wherein: the inner diameter of the manhole is 450 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122184444.3U CN216159728U (en) | 2021-09-10 | 2021-09-10 | Heat exchanger convenient to overhaul and pipe box structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122184444.3U CN216159728U (en) | 2021-09-10 | 2021-09-10 | Heat exchanger convenient to overhaul and pipe box structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216159728U true CN216159728U (en) | 2022-04-01 |
Family
ID=80847885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122184444.3U Active CN216159728U (en) | 2021-09-10 | 2021-09-10 | Heat exchanger convenient to overhaul and pipe box structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216159728U (en) |
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2021
- 2021-09-10 CN CN202122184444.3U patent/CN216159728U/en active Active
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