CN215725376U - Novel water injection device for coiled tube heat exchanger - Google Patents
Novel water injection device for coiled tube heat exchanger Download PDFInfo
- Publication number
- CN215725376U CN215725376U CN202121395306.3U CN202121395306U CN215725376U CN 215725376 U CN215725376 U CN 215725376U CN 202121395306 U CN202121395306 U CN 202121395306U CN 215725376 U CN215725376 U CN 215725376U
- Authority
- CN
- China
- Prior art keywords
- water injection
- pipe
- water
- injection pipe
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a novel water injection device for a coiled heat exchanger, which comprises a water injection pipe (2) arranged in a pipe box (100) of the coiled heat exchanger, and is characterized in that: the water injection pipe (2) is an annular body and is formed by sequentially connecting at least two arc pipes (20) in an end-to-end detachable manner, and each arc pipe (20) is provided with a plurality of water outlet holes (21); meanwhile, the water injection pipe (2) is provided with a water inlet (22) for water to enter. Compared with the prior art, the water injection device of this application can evenly go out water and be convenient for examine and repair.
Description
Technical Field
The utility model belongs to the technical field of heat exchange, and particularly relates to a novel water injection device for a coiled tube heat exchanger.
Background
The existing coiled heat exchanger comprises a single coiled heat exchanger and a coiled overlapping heat exchanger, and the structure of the single coiled heat exchanger is as the structure disclosed in the utility model patent with the patent number ZL201420757685.X, namely a coiled heat exchanger with high heat exchange efficiency (the granted number is CN 204388658U).
The winding pipe overlapping heat exchanger is formed by connecting at least two winding pipe type heat exchangers, the pipe passes of the two adjacent heat exchangers are communicated through a pipe box positioned in the middle section, and a manhole for inspection and maintenance is arranged on the pipe box in the middle section. The structure of the winding pipe overlapping heat exchanger can refer to the structure disclosed in the utility model patent No. ZL201720622189.7, namely, a heat exchanger group (No. CN206755943U), which comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger comprises a first shell, a first heat exchange pipe arranged in the first shell through a first pipe plate, a first shell side inlet and a first shell side outlet which are communicated with the inner cavity of the first shell, and a first tube side inlet and a first tube side outlet which are communicated with the first heat exchange pipe; the second heat exchanger comprises a second shell, a second heat exchange tube arranged in the second shell through a second tube plate, a second shell pass inlet and a second shell pass outlet which are communicated with the inner cavity of the second shell, and a second tube pass inlet and a second tube pass outlet which are communicated with the second heat exchange tube; the first heat exchanger and the second heat exchanger are distributed in a straight line, and a short connecting structure which keeps the same straight line distribution with the first heat exchanger and the second heat exchanger is connected between the first tube pass outlet and the second tube pass inlet. The short connection in this patent is the tube box around the middle section of the tube-overlapping heat exchanger.
In the hydrocracking device, ammonium salt is seriously crystallized when tube pass heat high-temperature gas is at 230 ℃, and the heat exchange tube is possibly blocked, so that the pressure drop of the device is increased. In order to reduce the risk of blocking the heat exchange tube by ammonium salt crystallization, the tube plate is washed by adopting a continuous water injection mode, and the distribution mode of water injection ports is a factor to be considered so as to ensure water injection and the inspection and maintenance of a water injection device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art and provides a novel water injection device for a coiled heat exchanger, which can uniformly discharge water and is convenient to inspect and maintain.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a novel water injection device for tube-wound heat exchanger, is including locating the water injection pipe in the pipe case of tube-wound heat exchanger, its characterized in that: the water injection pipe is an annular body and is formed by connecting at least two arc pipes in a first-end detachable manner in sequence, and each arc pipe is provided with a plurality of water outlet holes; and the water injection pipe is provided with a water inlet for water to enter.
In order to facilitate the connection and the disassembly of the arc pipes and improve the connection strength between the arc pipes, preferably, the heads and the tails of two adjacent arc pipes are detachably connected through flanges and flange bolts. Of course, besides the connection mode, the two adjacent arc pipes can be connected by adopting a sleeve, and the heads and the tails of the two adjacent arc pipes are respectively inserted into the sleeve from the two ends of the sleeve so as to be connected; other means such as quick connectors may also be used for the connection.
Preferably, the water outlet holes are uniformly distributed on the water injection pipe along the circumferential direction.
In order to further improve the uniform distribution of the fluid, preferably, each water outlet hole is of a structure with the diameter gradually increasing from inside to outside; or each water outlet hole is of a structure that the aperture is gradually reduced from inside to outside and then gradually increased.
In order to further improve the uniformity of the fluid, it is also preferable that a nozzle along which water is sprayed is inserted into the water outlet hole.
Furthermore, the spray head is of a bent pipe structure, an inner end pipe orifice of the bent pipe is inserted into the water outlet hole, and an outer end pipe orifice of the bent pipe is exposed out of the water outlet hole; or the spray head is of a funnel structure, the small head end of the funnel is inserted into the water outlet hole, and the large head end of the funnel is exposed out of the water outlet hole.
In each of the above solutions, the water injection pipe is located below the manhole of the pipe box for easy maintenance.
Furthermore, the water injection pipe structure also comprises at least two first rib plates which are distributed at intervals along the circumferential direction of the water injection pipe and are connected with the second rib plates on the inner wall of the pipe box, and the side edge of each first rib plate is provided with a groove for supporting the water injection pipe. The first rib plate and the second rib plate can be connected through bolts. And the stability of the water injection pipe mounting structure can be improved by arranging the first rib plates.
Preferably, the cross section of the water injection pipe is circular, the groove is formed in the end portion of the first rib plate, and the groove is an arc groove smaller than a semicircle.
And finally, considering the expansion caused by heat and the contraction caused by cold, the first rib plate and/or the second rib plate are/is provided with waist-shaped holes.
Compared with the prior art, the utility model has the advantages that: the water injection pipe is designed into an annular body structure formed by sequentially connecting at least two arc pipes in a head-to-tail detachable manner, and each arc pipe is provided with a plurality of water outlets, so that the water outlets distributed annularly can improve the uniform distribution performance of water outlet; and the detachable water injection pipe is convenient to install and detach the local part of the water injection pipe, so that the water injection pipe is convenient to inspect and maintain, and the high-efficiency and stable operation of equipment is ensured. Simultaneously, the device is simple in structure and convenient to implement.
Drawings
FIG. 1 is a diagram illustrating a water injection apparatus installed in a channel box according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a water injection apparatus according to a first embodiment of the present invention;
fig. 3 is a schematic view of an installation structure of a second rib plate and a pipe box according to a first embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of a first rib plate and a water injection pipe according to a first embodiment of the present invention;
fig. 5 is a schematic view of a connection structure of the first rib plate, the second rib plate and the water injection pipe according to the first embodiment of the present invention;
FIG. 6 is a schematic view of a partial structure of a water injection pipe according to a first embodiment of the present invention;
FIG. 7 is a schematic view of a partial structure of a water injection pipe according to a second embodiment of the present invention;
FIG. 8 is a schematic view of a partial structure of a water injection pipe according to a third embodiment of the present invention;
fig. 9 is a partial structural schematic view of a water injection pipe according to a fourth embodiment of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows:
as shown in fig. 1 to 6, a first preferred embodiment of the novel water injection device for a tube-wound heat exchanger according to the present invention is shown, and the water injection device of the present embodiment is used for a tube box of the tube-wound heat exchanger.
A manhole 110 for an access person to enter and exit is formed on a side wall of a tube box 100 of the tube-wound heat exchanger of the present embodiment, and a water inlet 130 opposite to the manhole 110 is formed on the side wall of the tube box 100, and the water inlet 130 is located above a bottom end of the manhole 110; meanwhile, the inner wall of the tube box 100 is connected with a plurality of vertically arranged second rib plates 120, each second rib plate 120 is distributed at intervals along the circumferential direction of the tube box 100 and extends along the radial direction of the tube box 100, and each second rib plate 120 is located below the manhole 110.
The water injection device comprises a water injection pipe 2 and a first rib plate 6 which are arranged in a pipe box 100, wherein the water injection pipe 2 is an annular body and is formed by connecting two arc-shaped pipes 20 in a head-to-tail detachable manner in sequence; each arc tube 20 is circular in cross-section. In this embodiment, the heads and the tails of two adjacent arc pipes 20 are detachably connected through the flange 3 and the flange bolt 4, and the flange 3 is arranged on the peripheries of the heads and the tails of the arc pipes 20. And each arc-shaped pipe 20 is provided with a plurality of water outlet holes 21; the water outlet holes 21 are uniformly distributed on the water injection pipe 2 along the circumferential direction. In this embodiment, the nozzle 5 for spraying water along the nozzle is inserted into each water outlet hole 21, the nozzle 5 is a bent pipe structure, an inner end pipe orifice of the bent pipe is inserted into the water outlet hole 21, and an outer end pipe orifice of the bent pipe is exposed outside the water outlet hole 21, as shown in fig. 6. Meanwhile, the water inlet pipe 7 is connected to the water injection pipe 2, a first end of the water inlet pipe 7 is communicated with the water inlet 22 of the water injection pipe 2, and a second end of the water inlet pipe is inserted into the water inlet hole 130 of the pipe box 100, so that external water can enter the water injection pipe 2 through the water inlet pipe 7 and the water inlet 22 and then flow out of the water outlet hole 21. In this embodiment, the water inlet pipe 7 is connected to the water inlet 22 of the water injection pipe 2 through the connecting flange 8 and the connecting bolt 9.
Meanwhile, the water injection pipe 2 is located below the manhole 110 of the channel box 100 and below the water inlet 130, so that the water inlet pipe 7 is Z-shaped and the first end of the water inlet pipe 7 is located below the second end in order to facilitate the second end of the water inlet pipe 7 to be inserted into the water inlet 130, as shown in fig. 1. If the inlet hole 130 is not interfered with or has no man-hole at the position of the manhole 110, the inlet pipe 7 is not required to be provided, and the inlet 22 of the water injection pipe 2 can directly extend into the inlet hole 130.
The number of the first rib plates 6 is matched with the number of the second rib plates 120, the first rib plates 6 are vertically arranged at the periphery of the water injection pipe 2 corresponding to the second rib plates 120, and each first rib plate 6 is connected with the corresponding second rib plate 120 through a bolt 10. In this embodiment, a groove 60 for supporting the water injection pipe 2 is formed at the top end of each first rib plate 6, the groove 60 is an arc groove smaller than a semicircle, and the water injection pipe 2 is supported and welded on the groove 60. Meanwhile, the first rib plate 6 and the second rib plate 120 are both provided with waist-shaped holes 61, and the second rib plate is also provided with the grooves. Please refer to fig. 1, 3, 4, and 5 specifically.
Example two:
fig. 7 shows a second preferred embodiment of the novel water injection device for a coiled heat exchanger according to the present invention, which is substantially the same as the first embodiment, except that the nozzle 5 in this embodiment is a funnel structure, and the small end of the funnel is inserted into the water outlet hole 21, and the large end is exposed outside the water outlet hole 21.
Example three:
referring to fig. 8, a third preferred embodiment of the novel water injection apparatus for a coiled heat exchanger according to the present invention is substantially the same as the first embodiment, except that no spray head is provided in the present embodiment, and each water outlet hole 21 has a structure with an increasing inner diameter and an increasing outer diameter.
Example four:
fig. 9 shows a fourth preferred embodiment of the novel water injection device for a coiled heat exchanger according to the present invention, which is substantially the same as the first embodiment except that no spray head is provided in the present embodiment, and each water outlet hole 21 has a structure in which the hole diameter decreases gradually from inside to outside and then increases gradually.
Claims (10)
1. The utility model provides a novel water injection device for tube-wound heat exchanger, is including locating water injection pipe (2) in tube case (100) of tube-wound heat exchanger, its characterized in that: the water injection pipe (2) is an annular body and is formed by sequentially connecting at least two arc pipes (20) in an end-to-end detachable manner, and each arc pipe (20) is provided with a plurality of water outlet holes (21); meanwhile, the water injection pipe (2) is provided with a water inlet (22) for water to enter.
2. The novel water injection apparatus of claim 1, wherein: the heads and the tails of two adjacent arc pipes (20) are detachably connected through a flange (3) and a flange bolt (4).
3. The novel water injection apparatus of claim 1, wherein: the water outlets (21) are uniformly distributed on the water injection pipe (2) along the circumferential direction.
4. The novel water injection apparatus of claim 1, wherein: each water outlet (21) is of a structure with gradually increased aperture from inside to outside; or each water outlet hole (21) is of a structure that the aperture is gradually reduced from inside to outside and then gradually increased.
5. The novel water injection apparatus of claim 1, wherein: a spray head (5) for spraying water along the water outlet hole is inserted in the water outlet hole (21).
6. The novel water injection apparatus of claim 5, wherein: the spray head (5) is of a bent pipe structure, an inner end pipe orifice of the bent pipe is inserted into the water outlet hole (21), and an outer end pipe orifice of the bent pipe is exposed out of the water outlet hole (21); or the spray head (5) is of a funnel structure, the small head end of the funnel is inserted into the water outlet hole (21), and the large head end of the funnel is exposed out of the water outlet hole (21).
7. A novel water injection device as claimed in any one of claims 1 to 6 wherein: the water injection pipe (2) is located below a manhole (110) of the channel box (100).
8. The novel water injection apparatus of claim 7, wherein: the water injection pipe structure is characterized by further comprising at least two first rib plates (6) which are distributed at intervals along the circumferential direction of the water injection pipe (2) and connected with second rib plates (120) on the inner wall of the pipe box (100), and grooves (60) used for supporting the water injection pipe (2) are formed in the side edges of each first rib plate (6).
9. The novel water injection apparatus of claim 8, wherein: the section of the water injection pipe (2) is circular, the groove (60) is formed in the end portion of the first rib plate (6), and the groove (60) is an arc-shaped groove smaller than a semicircle.
10. The novel water injection apparatus of claim 9, wherein: waist-shaped holes (61) are formed in the first rib plates (6) and/or the second rib plates (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395306.3U CN215725376U (en) | 2021-06-22 | 2021-06-22 | Novel water injection device for coiled tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395306.3U CN215725376U (en) | 2021-06-22 | 2021-06-22 | Novel water injection device for coiled tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725376U true CN215725376U (en) | 2022-02-01 |
Family
ID=80044294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121395306.3U Active CN215725376U (en) | 2021-06-22 | 2021-06-22 | Novel water injection device for coiled tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725376U (en) |
-
2021
- 2021-06-22 CN CN202121395306.3U patent/CN215725376U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110595230A (en) | Portable elastic scroll heat exchanger | |
| CN215725376U (en) | Novel water injection device for coiled tube heat exchanger | |
| CN210242495U (en) | Heat exchanger | |
| CN110553520A (en) | Small-size spiral winding elasticity tubular heat exchanger | |
| CN215725313U (en) | Drawable flue gas cooler | |
| CN112923609B (en) | Shell-and-tube dry evaporator | |
| CN113237359A (en) | Spiral baffling wound copper pipe heat exchange device | |
| CN210128640U (en) | Double-tube plate heat exchanger | |
| CN111207608A (en) | Full-premixing efficient condensation heat exchanger | |
| CN116651377A (en) | String pipe reactor with uniform flow and impurity deposition prevention in jacket | |
| CN213984681U (en) | Copper coil pipe capable of being disassembled in differential arrangement | |
| CN210638549U (en) | Small-size spiral winding elasticity tubular heat exchanger | |
| CN211503751U (en) | Heat exchanger of cooling tower | |
| US20180238628A1 (en) | True countercurrent tema type bfu special | |
| CN108746222B (en) | Water spray ring for cooling roller special for copper pipe rolling mill | |
| CN219995977U (en) | Single tube Cheng Fu head type heat exchanger | |
| CN206310944U (en) | Glassed steel tube row type condenser and heat-exchanger rig | |
| CN210121483U (en) | Serial rotary-cut flow reaction system with transition cavity | |
| CN217877291U (en) | Plate-fin heat exchanger with high thermal conductivity and easy installation | |
| CN214223832U (en) | Heat exchanger with access hole | |
| CN220380360U (en) | Inner coil pipe fixing structure | |
| CN220454354U (en) | Hydrogen heat exchanger device | |
| CN220435705U (en) | Fire-resistant smoke-discharging-preventing connecting flange | |
| CN219924105U (en) | Cooling device for rolled pierced billet | |
| CN216279925U (en) | Pipeline flange convenient to erection joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhenhai Petrochemical Construction and Installation Engineering Co.,Ltd. Address before: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee before: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |