CN219815279U - High-efficiency evaporator in low-temperature vacuum evaporation concentration device - Google Patents
High-efficiency evaporator in low-temperature vacuum evaporation concentration device Download PDFInfo
- Publication number
- CN219815279U CN219815279U CN202320306051.1U CN202320306051U CN219815279U CN 219815279 U CN219815279 U CN 219815279U CN 202320306051 U CN202320306051 U CN 202320306051U CN 219815279 U CN219815279 U CN 219815279U
- Authority
- CN
- China
- Prior art keywords
- tube shell
- tube
- low
- evaporator
- shell
- 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
- 238000007738 vacuum evaporation Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000002351 wastewater Substances 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 abstract description 11
- 230000008020 evaporation Effects 0.000 abstract description 11
- 239000003507 refrigerant Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a high-efficiency evaporator in a low-temperature vacuum evaporation concentration device, which comprises a horizontal dry evaporator; the horizontal dry evaporator comprises a tube shell, and a winding heat exchange tube group is arranged on the inner side of the tube shell; two ends of the winding heat exchange tube group are respectively connected to tube side flanges at two ends of the tube shell; a tube shell steam inlet flange is arranged in the middle of the upper side of the tube shell; the lower end of the tube shell is provided with a liquid discharge flange; and an anti-impact assembly is arranged on the inner side of the tube shell at the position of the tube shell steam inlet flange. The high-efficiency evaporator in the low-temperature vacuum evaporation concentration device is specially designed to be suitable for the heat pump low-temperature evaporation device according to the characteristics of secondary steam generated by the heat pump low-temperature evaporation device.
Description
Technical Field
The utility model particularly relates to a high-efficiency evaporator in a low-temperature vacuum evaporation concentration device, and belongs to the technical field of heat pump low-temperature evaporation systems.
Background
In the field of low-temperature vacuum evaporation of a salt-containing wastewater heat pump, as the vacuum degree is generally higher, the specific volume and the volume flow of secondary steam generated by evaporation are large, so that the diameter of the secondary steam pipe and the diameter of a shell of a heat pump evaporator are both large, in order to ensure that the flow velocity of refrigerant at one side of the pipe is in a reasonable range, the flow direction of the refrigerant pipe is generally designed into multiple flows, and generally 2-4 flows; however, the design of multiple processes brings another problem, namely when the head refrigerant turns, the problem of uneven refrigerant quantity distribution in each heat exchange tube is brought, so that the uneven heat exchange condition of each heat exchange tube is influenced, and the efficiency of the evaporator is influenced; through testing, this situation has an approximate impact on evaporator efficiency of more than 15%.
Disclosure of Invention
In order to solve the problems, the utility model provides a high-efficiency evaporator in a low-temperature vacuum evaporation concentration device, and the high-efficiency heat pump evaporator suitable for the heat pump low-temperature evaporation device is specially designed according to the characteristics of secondary steam generated by the heat pump low-temperature evaporation device.
The utility model relates to a high-efficiency evaporator in a low-temperature vacuum evaporation concentration device, which comprises a horizontal dry evaporator; the horizontal dry evaporator comprises a tube shell, and a winding heat exchange tube group is arranged on the inner side of the tube shell; two ends of the winding heat exchange tube group are respectively connected to tube side flanges at two ends of the tube shell; a tube shell steam inlet flange is arranged in the middle of the upper side of the tube shell; the lower end of the tube shell is provided with a liquid discharge flange; the inner side of the tube shell is provided with an anti-impact assembly at the position of the tube shell steam inlet flange; the high-efficiency evaporator still adopts a conventional horizontal dry evaporator and the refrigerant passes through the tube side, except that the tube side design does not adopt multiple processes, but adopts a single process, namely, the refrigerant enters from one end and exits from the other end; the heat exchange tube is not in a tube type structure, but is designed into a winding tube type structure; the length of the evaporator is reduced, and the refrigerant can be fully heated; the secondary steam inlet pipe is arranged at the middle position of the upper part of the evaporator to realize comprehensive steam distribution of steam, and in order to prevent the impact of secondary steam on the heat exchange pipe, an anti-impact assembly is arranged below the secondary steam inlet.
Further, the anti-impact assembly is an orifice plate, the orifice plate is fixed on the inner wall of the tube shell through a plurality of supporting legs, steam enters the tube shell, and flow is guided through orifice plate through holes and the periphery of the orifice plate, so that the impact of secondary steam on the heat exchange tube is prevented.
Further, the anti-impact assembly is a cylinder with a hollow top surface, and perforation arrays are arranged on the cylinder at intervals; the cylinder body is welded on the inner wall of the tube shell; the flow is guided by the perforation array on the cylinder body, so that the impact of secondary steam on the heat exchange tube is prevented.
Further, two ends of the tube side flange are respectively connected with the heat pump compressor and the electronic expansion valve; the shell steam inlet flange is connected to the steam exhaust end of the waste water tank; the liquid draining flange is connected to a vacuum pump; the refrigerant enters the heat exchanger through the tube side flange to complete evaporation, is discharged from the other tube side flange, is compressed through the compressor, is sent into the condenser to be condensed, heats the salt-containing wastewater in the wastewater tank when the condenser is condensed, and the vacuum pump pumps negative pressure to the wastewater tank through the heat exchanger to perform low-temperature heating evaporation; and after the steam enters the heat exchanger to complete heat exchange, the condensate water is discharged.
Compared with the prior art, the high-efficiency evaporator in the low-temperature vacuum evaporation concentration device is suitable for a heat pump low-temperature evaporation system, and can remarkably improve the efficiency of the evaporator of the low-temperature heat pump vacuum evaporation system by more than 15 percent; meanwhile, the problem that the evaporator is submerged to cause the system operation to be stagnated due to serious uneven refrigerant distribution when the working condition of the system is changed by the multi-flow evaporator is solved, and the reliable and stable operation of the heat pump evaporator is realized.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic structural view of the impact protection assembly of the present utility model.
Fig. 3 is a schematic structural view of another embodiment of the impact protection assembly of the present utility model.
Detailed Description
Examples
The high-efficiency evaporator in the low-temperature vacuum evaporation concentration device shown in fig. 1 and 2 comprises a horizontal dry evaporator; the horizontal dry evaporator comprises a tube shell 1, wherein a winding heat exchange tube group 2 is arranged on the inner side of the tube shell 1; two ends of the winding heat exchange tube group 2 are respectively connected to tube side flanges 3 at two ends of the tube shell 1; a tube shell steam inlet flange 4 is arranged in the middle of the upper side of the tube shell 1; the lower end of the tube shell 1 is provided with a liquid discharge flange 5; an anti-impact component 6 is arranged on the inner side of the tube shell 1 at a tube shell steam inlet flange; the high-efficiency evaporator still adopts a conventional horizontal dry evaporator and the refrigerant passes through the tube side, except that the tube side design does not adopt multiple processes, but adopts a single process, namely, the refrigerant enters from one end and exits from the other end; the heat exchange tube is not in a tube type structure, but is designed into a winding tube type structure; the length of the evaporator is reduced, and the refrigerant can be fully heated; the secondary steam inlet pipe is arranged at the middle position of the upper part of the evaporator to realize comprehensive steam distribution of steam, and in order to prevent the impact of secondary steam on the heat exchange pipe, an anti-impact assembly is arranged below the secondary steam inlet.
The two ends of the tube side flange 3 are respectively connected with the heat pump compressor 7 and the electronic expansion valve 8; the shell steam inlet flange 4 is connected to the steam exhaust end of the waste water tank 9; the drain flange 5 is connected to a vacuum pump 10; the refrigerant enters a heat exchanger through a tube side flange 3 to complete evaporation, is discharged from the other tube side flange 3, is compressed through a compressor 7, is sent into a condenser 11 to be condensed, heats salt-containing wastewater in a wastewater tank 9 when the condenser condenses, and a vacuum pump 10 pumps negative pressure to the wastewater tank through the heat exchanger to perform low-temperature heating evaporation; and after the steam enters the heat exchanger to complete heat exchange, the condensate water is discharged.
The anti-impact assembly 6 is an orifice plate 61, the orifice plate 61 is fixed on the inner wall of the tube shell 1 through a plurality of supporting legs 62, steam enters the tube shell, and flow is guided through orifice plate through holes and orifice plate periphery, so that secondary steam is prevented from impacting the heat exchange tube.
In yet another embodiment, as shown in fig. 3, the impact protection assembly 6 is a cylinder 63 with a hollow top surface, and the cylinder 63 is provided with an array of perforations 64 at intervals; the cylinder 63 is welded on the inner wall of the tube shell 1; the flow is guided by the perforated array on the cylinder 63 to prevent the impact of the secondary steam on the heat exchange tube.
The above embodiments are merely preferred embodiments of the present utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (4)
1. The utility model provides a high-efficient evaporimeter among low temperature vacuum evaporation enrichment facility which characterized in that: comprises a horizontal dry evaporator; the horizontal dry evaporator comprises a tube shell, and a winding heat exchange tube group is arranged on the inner side of the tube shell; two ends of the winding heat exchange tube group are respectively connected to tube side flanges at two ends of the tube shell; a tube shell steam inlet flange is arranged in the middle of the upper side of the tube shell; the lower end of the tube shell is provided with a liquid discharge flange; and an anti-impact assembly is arranged on the inner side of the tube shell at the position of the tube shell steam inlet flange.
2. The high-efficiency evaporator in a low-temperature vacuum evaporation concentration apparatus according to claim 1, wherein: the anti-impact assembly is an orifice plate, and the orifice plate is fixed on the inner wall of the tube shell through a plurality of supporting legs.
3. The high-efficiency evaporator in a low-temperature vacuum evaporation concentration apparatus according to claim 1, wherein: the anti-collision component is a cylinder with a hollow top surface, and perforation arrays are arranged on the cylinder at intervals; the cylinder is welded on the inner wall of the tube shell.
4. The high-efficiency evaporator in a low-temperature vacuum evaporation concentration apparatus according to claim 1, wherein: the two ends of the tube side flange are respectively connected with the heat pump compressor and the electronic expansion valve; the shell steam inlet flange is connected to the steam exhaust end of the waste water tank; the drain flange is connected to a vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306051.1U CN219815279U (en) | 2023-02-24 | 2023-02-24 | High-efficiency evaporator in low-temperature vacuum evaporation concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306051.1U CN219815279U (en) | 2023-02-24 | 2023-02-24 | High-efficiency evaporator in low-temperature vacuum evaporation concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219815279U true CN219815279U (en) | 2023-10-13 |
Family
ID=88282670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320306051.1U Active CN219815279U (en) | 2023-02-24 | 2023-02-24 | High-efficiency evaporator in low-temperature vacuum evaporation concentration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219815279U (en) |
-
2023
- 2023-02-24 CN CN202320306051.1U patent/CN219815279U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020125007A1 (en) | Efficient heat exchange structure of compressed air refrigeration dryer | |
| CN101738013A (en) | Pure reverse flow dry evaporator device and use method thereof | |
| CN219815279U (en) | High-efficiency evaporator in low-temperature vacuum evaporation concentration device | |
| CN2844831Y (en) | Non-equidistant segmental baffle board heat exchangers | |
| CN204723782U (en) | Little temperature difference shell journey becomes the no baffle plate high-efficiency energy-saving evaporator in space | |
| CN215756868U (en) | Treatment facility of municipal refuse transfer station landfill leachate | |
| CN212227434U (en) | Sewage and waste water source vapor compression flooded heat pump unit | |
| CN204582582U (en) | A kind of shell side steam is containing the falling film evaporator of incoagulable gas | |
| CN210486164U (en) | Vertical double-cylinder falling film absorption heat pump system | |
| CN214333429U (en) | Horizontal condenser for treating waste gas generated in production of drilling fluid | |
| CN203249439U (en) | Evaporation type condenser | |
| CN200996798Y (en) | Efficient shell and tube preheater | |
| CN215462029U (en) | High-efficiency energy-saving vacuum concentrator | |
| CN201589466U (en) | Purely reverse-flow dry evaporator device | |
| CN212512566U (en) | Cooling tower for thermal power plant | |
| CN216790582U (en) | Air-cooled condenser applied to refrigerating system | |
| CN220541419U (en) | Heat pump evaporator capable of automatically discharging non-condensable gas | |
| CN219231440U (en) | Progressive graphite sulfuric acid preparation evaporation concentration device | |
| CN214307622U (en) | Structure of heat exchange copper pipe of air energy water heater | |
| CN211204523U (en) | Energy-saving refrigeration equipment | |
| CN217274971U (en) | Flat evaporative condenser | |
| CN204006766U (en) | A kind of refrigeration system | |
| CN219333172U (en) | Discharge structure of non-condensable gas of falling film evaporator | |
| CN217154159U (en) | Boiler system | |
| CN217844822U (en) | Evaporative cooling device for increasing specific surface area of spray water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |