CN211782993U - Large heat exchanger and piping system thereof - Google Patents
Large heat exchanger and piping system thereof Download PDFInfo
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- CN211782993U CN211782993U CN202020410465.5U CN202020410465U CN211782993U CN 211782993 U CN211782993 U CN 211782993U CN 202020410465 U CN202020410465 U CN 202020410465U CN 211782993 U CN211782993 U CN 211782993U
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Abstract
The present application relates to large heat exchangers and piping systems therefor. The application a large heat exchanger and piping system thereof includes: the heat exchanger comprises a heat exchanger, a first inlet pipe, a first connecting flange group, a second connecting flange group, a valve flange group and a cut-off valve; the heat exchanger comprises a heat exchanger body, a first phase inlet, a first phase outlet, a second phase inlet and a second phase outlet, wherein the first phase inlet, the first phase outlet, the second phase inlet and the second phase outlet are respectively arranged on the heat exchanger body; the first inlet pipe is connected with the first phase inlet through the first connecting flange group; the second flange group and the valve flange group are respectively arranged on the first inlet pipe, the cut-off valve is arranged at the position of the valve flange group, and the cut-off valve is connected with the first inlet pipe through the valve flange group. The large heat exchanger and the piping system thereof have the advantages of safety and time saving.
Description
Technical Field
The present invention relates to a piping system, and more particularly, to a large heat exchanger and a piping system thereof.
Background
For the maintenance of a common heat exchanger, when a pipeline connected with the heat exchanger is dismantled, a bolt connected with a flange on the pipeline needs to be dismantled by a metal instrument tool, and the influence on common media can be avoided. When the materials transported in the pipeline are combustible, the bolt is not easy to pull. On one hand, for a large heat exchanger, the sizes of the pipe and the bolt are large, and the torque is large; on the other hand, the inflammability of the material does not allow sparks to be generated when the bolt is pulled. For the above reasons, in some heat exchanger systems including combustible heat exchange and transportation, a tool for disassembling the piping is required to be high, a spark cannot be generated by using the tool, and a butterfly valve connected to the pipeline is also disassembled while the piping is disassembled. Furthermore, if the pipeline detached from the heat exchanger is not plugged, a fire is likely to occur if there is a spark nearby, and therefore, the detached pipeline needs to be isolated, which increases the workload of repairing the heat exchanger.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a large heat exchanger and a piping system thereof, which have an advantage of reducing the workload of heat exchanger maintenance while ensuring safety.
In one aspect of the application, a large heat exchanger and a piping system thereof are provided, which include a heat exchanger, a first inlet pipe, a first connecting flange group, a second connecting flange group, a valve flange group and a cutoff valve;
the heat exchanger comprises a heat exchanger body, a first phase inlet, a first phase outlet, a second phase inlet and a second phase outlet, wherein the first phase inlet, the first phase outlet, the second phase inlet and the second phase outlet are respectively arranged on the heat exchanger body;
the first inlet pipe is connected with the first phase inlet through the first connecting flange group;
the second connecting flange group and the valve flange group are respectively arranged on the first inlet pipe, the stop valve is arranged at the valve flange group, and the stop valve is connected with the first inlet pipe through the valve flange group;
the second connecting flange group is arranged on a pipe section between the first connecting flange group and the valve flange group.
Large-scale heat exchanger and piping system thereof, through set up second flange combination valve flange group on first inlet tube, thereby when dismantling the heat exchanger, only need dismantle the first flange group and the second flange group that the heat exchanger is connected, just can dismantle and handle the heat exchanger on the scene, and the stop valve is in connected state with first inlet tube, can keep apart the pipeline through the stop valve, thereby avoided the work of connecting blind plate or other isolating structure, make whole maintenance process consuming time few, and safer.
Further, the first inlet pipe comprises a bent pipe section and a straight pipe section, the bent pipe section is connected with the straight pipe section, and the second connecting flange group is arranged on the straight pipe section.
And the pipeline section between the second connecting flange group and the valve flange group is connected with the spray guide assembly.
Furthermore, lead and drench the subassembly and include leading and drench the valve and lead and drench the pipe, lead and drench the valve setting lead and drench the pipe on the pipe, lead and drench the union coupling and be in the second flange group with the pipeline section between the valve flange group.
Furthermore, the bending device also comprises a bending pipe supporting column which is arranged below the bending pipe section and is fixedly connected with the bending pipe section.
Further, the heat exchanger comprises a floating head heat exchanger or a fixed tube plate heat exchanger.
Further, the cutoff valve includes a fixed butterfly valve, a stop valve, or a gate valve.
Further, the second connecting flange group comprises a second upper flange and a second lower flange, the second upper flange and the second lower flange are respectively arranged on the first inlet pipe, the second upper flange is close to the cut-off valve, and the second lower flange is far away from the cut-off valve.
Further, the second connecting flange group further includes a second gasket disposed between the second upper flange and the second lower flange.
For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view of an exemplary large heat exchanger and piping system thereof according to the present application.
Detailed Description
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic perspective view of an exemplary large heat exchanger and piping system thereof according to the present application. Referring to fig. 1, an exemplary large heat exchanger and piping system thereof according to the present application includes a heat exchanger 10, a first inlet pipe 30, a first connecting flange group 21, a second connecting flange group 22, a valve flange group 23, and a cutoff valve 40;
the heat exchanger 10 comprises a heat exchanger body, a first phase inlet 11, a first phase outlet 12, a second phase inlet 13, and a second phase outlet 14, wherein the first phase inlet 11, the first phase outlet 12, the second phase inlet 13, and the second phase outlet 14 are respectively arranged on the heat exchanger body 10;
the first inlet pipe 30 is connected with the first phase inlet 11 through the first connecting flange group 21;
the second connecting flange group 22 and the valve flange group 23 are respectively disposed on the first inlet pipe 30, the cut-off valve 40 is disposed at the valve flange group 23, and the cut-off valve 40 is connected to the first inlet pipe 30 through the valve flange group 23;
the second set of coupling flanges 22 is arranged on the pipe section between the first set of coupling flanges 21 and the set of valve flanges 23.
In some embodiments, a first outlet pipe (not shown), a second inlet pipe (not shown), and a second outlet pipe (not shown) are also included. The first phase inlet 11 is connected to a first inlet pipe 30, the first phase outlet 12 is connected to a first outlet pipe, the second phase inlet 13 is connected to a second inlet pipe, and the second phase outlet 14 is connected to a second outlet pipe. The first phase material enters from a first inlet pipe 30, passes through the shell side of the heat exchanger 10 and then flows out from a first outlet pipe; the second phase material enters from the second inlet pipe, passes through the tube pass of the heat exchanger 10 and then flows out from the second outlet pipe. For example, the first phase material is high-temperature quenching water, and the quenching water contains a certain amount of cracked quenching oil; the second phase material is process water with lower water temperature. The two-phase material is heat exchanged in the heat exchanger 10 and the quench water heats the process water, so that upon disassembly of the heat exchanger 10, the connecting lines need to be isolated and emptied to prevent accidents due to nearby sparks.
In some preferred embodiments, the first inlet pipe 30 includes a bent pipe section and a straight pipe section, the bent pipe section is connected with the straight pipe section, and the second connection flange group 22 is disposed on the straight pipe section. The second attachment flange group 22 is provided on the straight pipe section so that the pressure-bearing capacity of the first inlet pipe 30 is sufficient and the detachment of the second attachment flange group 22 is facilitated.
In some preferred embodiments, a shower guiding assembly 50 is further included, and the shower guiding assembly 50 is connected to the pipe section between the second connecting flange set 22 and the valve flange set 23. The setting is led and is drenched subassembly 50, can block or isolated state at first inlet tube 30, cuts off under the valve 40 closed condition, drenches subassembly 50 through opening leading, leads the material in the first inlet tube 30. Further, the material between the cut-off valve 40 and the first connecting flange is led out, thereby ensuring the safety when the first inlet pipe 30 is disassembled and the safety when the heat exchanger 10 is overhauled.
In some preferred embodiments, the pilot shower assembly 50 includes a pilot shower valve disposed on the pilot shower pipe and a pilot shower pipe connected to the pipe section between the second connection flange group 22 and the valve flange group 23. The guide shower valve is opened to enable the guide shower pipe to be communicated, so that the material can flow out.
In some preferred embodiments, an elbow support post 60 is further included, the elbow support post 60 being disposed below and fixedly connected to the elbow section. The support column provides good support for the first inlet tube 30.
In some preferred embodiments, the heat exchanger 10 comprises a floating head heat exchanger or a fixed tube sheet heat exchanger.
In some preferred embodiments, the shut-off valve 40 comprises a fixed butterfly valve, a stop valve, or a gate valve.
In some preferred embodiments, the second connecting flange set 22 includes a second upper flange (not shown) and a second lower flange (not shown) respectively disposed on the first inlet pipe 30, the second upper flange being adjacent to the cut-off valve 40, and the second lower flange being disposed away from the cut-off valve 40.
In some preferred embodiments, the second set of attachment flanges 22 further includes a second gasket disposed between the second upper flange and the second lower flange. The second gasket is arranged, so that the sealing surface can be prevented from being abraded.
In some preferred embodiments, the first connecting flange group 21 includes a first upper flange, a first lower flange and a first gasket, the first upper flange and the first lower flange are respectively symmetrically disposed on the first inlet pipe 30, and the first gasket is disposed between the first upper flange and the first lower flange.
The working principle of the exemplary large heat exchanger and the piping system thereof of the application is as follows:
for the maintenance of a large heat exchanger, when the heat exchanger core needs to be pulled out for maintenance, the heat exchanger core is often difficult to pull out and hoist, and the matching pipe near the pulling and hoisting needs to be disassembled so as to ensure enough operation space. And after the corresponding piping is removed, a part of the pipeline lacks of a valve for partition or isolation. Therefore, the scheme can fully solve the problem, ensure that a sufficient working space is formed after the pipe is disassembled, and ensure that the pipeline after the pipe is disassembled has a good isolation effect.
Before the heat exchanger 10 is disassembled, the pipelines connected with the heat exchanger 10 are closed, all valves connected on the pipelines are closed, and the heat exchanger 10 and the adjacent pipelines are emptied. After emptying, the end cap of the heat exchanger 10 is removed and the line connecting the first phase inlet 11 and the first phase outlet 12 is removed. In the illustrated example, the fastening bolts connecting the first connection flange group 21 and the second connection flange group 22 are removed to separate the flange groups, thereby separating the heat exchanger 10 from the first inlet pipe 30, and the first inlet pipe 30 is separated into two sections at the second connection flange group 22, wherein the pipe section mainly composed of the bent pipe section is separately placed, so that the first inlet pipe 30 is separated from the first inlet pipe 30 mainly composed of the straight pipe section by closing the valve, thereby avoiding the need to add a blind plate to block the first inlet pipe 30.
Thus, when the heat exchanger 10 is overhauled, the cutoff valve 40 does not need to be detached, the blind plate is arranged, the first inlet pipe 30 does not need to be cut off by fire on site, fire operation is avoided, the workload of detaching the heat exchanger 10 is reduced, and the efficiency is improved.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (9)
1. A large-scale heat exchanger and piping system thereof, characterized in that: the heat exchanger comprises a heat exchanger, a first inlet pipe, a first connecting flange group, a second connecting flange group, a valve flange group and a cut-off valve;
the heat exchanger comprises a heat exchanger body, a first phase inlet, a first phase outlet, a second phase inlet and a second phase outlet, wherein the first phase inlet, the first phase outlet, the second phase inlet and the second phase outlet are respectively arranged on the heat exchanger body;
the first inlet pipe is connected with the first phase inlet through the first connecting flange group;
the second connecting flange group and the valve flange group are respectively arranged on the first inlet pipe, the stop valve is arranged at the valve flange group, and the stop valve is connected with the first inlet pipe through the valve flange group;
the second connecting flange group is arranged on a pipe section between the first connecting flange group and the valve flange group.
2. The large heat exchanger and the piping system thereof according to claim 1, wherein: the first inlet pipe comprises a bent pipe section and a straight pipe section, the bent pipe section is connected with the straight pipe section, and the second connecting flange group is arranged on the straight pipe section.
3. The large heat exchanger and the piping system thereof according to claim 2, wherein: the valve flange group is connected with the second connecting flange group through a pipeline, and the valve flange group is connected with the second connecting flange group through a pipeline.
4. The large heat exchanger and the piping system thereof according to claim 3, wherein: the guide shower assembly comprises a guide shower valve and a guide shower pipe, the guide shower valve is arranged on the guide shower pipe, and the guide shower pipe is connected with a pipe section between the second connecting flange group and the valve flange group.
5. The large heat exchanger and piping system therefor according to claim 4, wherein: the bending pipe support column is arranged below the bending pipe section and is fixedly connected with the bending pipe section.
6. A large heat exchanger and its piping system according to any one of claims 1 to 5, wherein: the heat exchanger comprises a floating head heat exchanger or a fixed tube plate heat exchanger.
7. The large heat exchanger and the piping system thereof according to claim 6, wherein: the cut-off valve comprises a fixed butterfly valve, a stop valve or a gate valve.
8. The large heat exchanger and the piping system thereof according to claim 6, wherein: the second connecting flange group comprises a second upper flange and a second lower flange, the second upper flange and the second lower flange are respectively arranged on the first inlet pipe, the second upper flange is close to the cut-off valve, and the second lower flange is far away from the cut-off valve.
9. The large heat exchanger and the piping system thereof according to claim 8, wherein: the second coupling flange set further includes a second gasket disposed between the second upper flange and the second lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410465.5U CN211782993U (en) | 2020-03-26 | 2020-03-26 | Large heat exchanger and piping system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410465.5U CN211782993U (en) | 2020-03-26 | 2020-03-26 | Large heat exchanger and piping system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211782993U true CN211782993U (en) | 2020-10-27 |
Family
ID=72929006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020410465.5U Expired - Fee Related CN211782993U (en) | 2020-03-26 | 2020-03-26 | Large heat exchanger and piping system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211782993U (en) |
-
2020
- 2020-03-26 CN CN202020410465.5U patent/CN211782993U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20210326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |