CN207881533U - Ultralow temperature tubular heat exchanger - Google Patents
Ultralow temperature tubular heat exchanger Download PDFInfo
- Publication number
- CN207881533U CN207881533U CN201820264280.0U CN201820264280U CN207881533U CN 207881533 U CN207881533 U CN 207881533U CN 201820264280 U CN201820264280 U CN 201820264280U CN 207881533 U CN207881533 U CN 207881533U
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- tubulation
- shell
- ultralow temperature
- inlet
- heat exchanger
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Abstract
The utility model is related to ultralow temperature tubular heat exchangers, including shell and tubulation, tubulation is placed in shell, and shell side is formed between tubulation and shell, and the both ends of tubulation are welded with upper perforated plate and lower perforated plate, the upper and lower part of shell is respectively welded end socket, shell is equipped with refrigerant inlet and refrigerant exit, and refrigerant inlet and refrigerant exit are connected to shell side, and low head is equipped with material inlet and material outlet, the outlet of the inlet communication of material inlet and tubulation, tubulation is connected to material outlet.Upper low head directly welds, and tubulation uses welded seal；Tube side walks material, and shell side walks cooling medium；Unitary design reduces whole equipment and is easy leakage point, substantially increases safety of the whole equipment in chemical production engineering, can be used under condition of ultralow temperature, and air-proof condition is good.
Description
Technical field
The utility model is related to a kind of ultralow temperature tubular heat exchangers.
Background technology
Currently, in chemical process, it is that gaseous material is collected, and reduces heat exchange to be frequently encountered under low boiling point or room temperature
Device cooling temperature can be collected effectively, and environmental emission caused by due to not collecting is reduced.But ordinary heat exchanger, Hen Duomi
Envelope uses flange seal, and since different medium coefficient of thermal expansion is different under condition of ultralow temperature, each flange seal of heat exchanger
Easily there is leakage situation during the work time in face, while the presence of condition of ultralow temperature lower flange gasket seal becomes fragile, risk of breakage,
To cause material leakage.
Utility model content
The purpose of the utility model is to overcome the shortcomings of the prior art, provide a kind of ultralow temperature tubular heat exchanger.
The purpose of this utility model is achieved through the following technical solutions：
Ultralow temperature tubular heat exchanger, feature are：Including shell and tubulation, tubulation are placed in shell, tubulation and shell
Between form shell side, the both ends of tubulation are welded with upper perforated plate and lower perforated plate, and the upper and lower part of shell is respectively welded end socket, shell
Body is equipped with refrigerant inlet and refrigerant exit, and refrigerant inlet and refrigerant exit are connected to shell side, and low head is equipped with material inlet
And material outlet, the outlet of the inlet communication of material inlet and tubulation, tubulation are connected to material outlet.
Further, above-mentioned ultralow temperature tubular heat exchanger, wherein the tubulation includes parallel each other and interconnects
Straight tube.
Further, above-mentioned ultralow temperature tubular heat exchanger, wherein the absolute altitude of the refrigerant inlet is less than refrigerant exit
Absolute altitude.
Further, above-mentioned ultralow temperature tubular heat exchanger, wherein the top of the upper cover is equipped with exhaust outlet, row
Gas port is in straight up.
Further, above-mentioned ultralow temperature tubular heat exchanger, wherein the material outlet is located at the bottom of low head,
In straight down.
The utility model has significant advantages and beneficial effects compared with prior art, embodies in the following areas：
Low head directly welds on the utility model, and tubulation uses welded seal；Tube side walks material, and shell side walks cooling Jie
Matter, cooling medium cooling range is at -80~60 DEG C, pressure-bearing ＜ 6bar；Unitary design reduces whole equipment and is easy leakage
Point substantially increases safety of the whole equipment in chemical production engineering, can be used under condition of ultralow temperature, and air-proof condition
It is good, while organic emission in Chemical Manufacture tail gas is reduced, environmental protection.
Description of the drawings
Fig. 1：The structural schematic diagram of the utility model.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, existing be described in detail specifically
Embodiment.
As shown in Figure 1, ultralow temperature tubular heat exchanger, including shell 1 and tubulation 4, tubulation 4 are placed in shell 1, tubulation
4 include parallel each other and interconnection straight tube, shell side are formed between tubulation 4 and shell 1, the both ends of tubulation 4 are welded with upper tube
The upper and lower part of plate and lower perforated plate, shell 1 is respectively welded end socket, and shell is equipped with refrigerant inlet 7 and refrigerant exit 6, cold
The absolute altitude of matchmaker's import 7 is less than the absolute altitude of refrigerant exit 6, and refrigerant inlet 7 and refrigerant exit 6 are connected to shell side, and low head 3 is equipped with
The outlet of material inlet 8 and material outlet 9, the inlet communication of material inlet 8 and tubulation 4, tubulation 4 is connected to material outlet 9, object
Material outlet 9 is located at the bottom of low head 3, in straight down.The top of upper cover 2 be equipped with exhaust outlet 5, exhaust outlet 5 in vertically to
On.
When concrete application, the above-mentioned perpendicular installation of ultralow temperature tubular heat exchanger, in straight up, material goes out exhaust outlet 5
Mouth 9 is straight down.
Material：Chloromethanes (- 27.7 DEG C of boiling point, -97.7 DEG C of fusing point)；
Coolant media：N-hexane (68.7 DEG C of boiling point, -95.3 DEG C of fusing point)；
(30~60 DEG C) pass through material inlet 8 to material chloromethanes in a gaseous form under normal pressure (absolute pressure 103kpa) operating condition
Into the tube side of tubulation 4, coolant media n-hexane (- 60~-65 DEG C) enters shell side from refrigerant inlet 7, goes out from refrigerant exit 6
Come.Chloromethanes exchange heat in tubulation it is cooling after in liquid form (- 30~-45 DEG C) low temperature be collected in by material outlet 9 receive
Collect in tank (- 50~-60 DEG C).
Upper low head is using directly welding, non-flanged joint；Using welded seal mode, (tubulation has welded tubulation when processing
At helium mass spectrum leak detection is carried out, leak rate reaches ＜ 1 × 10-9Pa·m3After/s qualifications, then carry out both ends end socket welding).
In conclusion low head directly welds on the utility model, tubulation uses welded seal；Tube side walks material, shell side
Walk cooling medium, cooling medium cooling range is at -80~60 DEG C, pressure-bearing ＜ 6bar；Unitary design reduces whole equipment appearance
Easy leakage point substantially increases safety of the whole equipment in chemical production engineering, can be used under condition of ultralow temperature, and close
Strip of paper used for sealing part is good, while reducing organic emission in Chemical Manufacture tail gas, environmental protection.
It should be noted that：Above description is merely a prefered embodiment of the utility model, is not limited to this practicality
Novel interest field；Above description simultaneously, should can be illustrated and implement for the special personage of correlative technology field, therefore its
It should be included in claim without departing from the lower equivalent change or modification completed of the revealed spirit of the utility model
In.
Claims (5)
1. ultralow temperature tubular heat exchanger, it is characterised in that：Including shell and tubulation, tubulation are placed in shell, tubulation and shell
Shell side is formed between body, the both ends of tubulation are welded with upper perforated plate and lower perforated plate, and the upper and lower part of shell is respectively welded end socket,
Shell is equipped with refrigerant inlet and refrigerant exit, and refrigerant inlet and refrigerant exit be connected to shell side, low head equipped with material into
Mouth and material outlet, the outlet of the inlet communication of material inlet and tubulation, tubulation are connected to material outlet.
2. ultralow temperature tubular heat exchanger according to claim 1, it is characterised in that：The tubulation includes to put down each other
Row and the straight tube of interconnection.
3. ultralow temperature tubular heat exchanger according to claim 1, it is characterised in that：The absolute altitude of the refrigerant inlet is less than
The absolute altitude of refrigerant exit.
4. ultralow temperature tubular heat exchanger according to claim 1, it is characterised in that：The top of the upper cover is equipped with row
Gas port, exhaust outlet is in straight up.
5. ultralow temperature tubular heat exchanger according to claim 1, it is characterised in that：The material outlet is located at low head
Bottom, in straight down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264280.0U CN207881533U (en) | 2018-02-23 | 2018-02-23 | Ultralow temperature tubular heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264280.0U CN207881533U (en) | 2018-02-23 | 2018-02-23 | Ultralow temperature tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881533U true CN207881533U (en) | 2018-09-18 |
Family
ID=63497285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820264280.0U Active CN207881533U (en) | 2018-02-23 | 2018-02-23 | Ultralow temperature tubular heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207881533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489309A (en) * | 2018-12-29 | 2019-03-19 | 无锡博利达换热器有限公司 | Drum type brake precooling evaporator |
-
2018
- 2018-02-23 CN CN201820264280.0U patent/CN207881533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489309A (en) * | 2018-12-29 | 2019-03-19 | 无锡博利达换热器有限公司 | Drum type brake precooling evaporator |
| CN109489309B (en) * | 2018-12-29 | 2024-01-26 | 无锡博利达换热器有限公司 | Cylinder type precooling evaporator |
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