CN116793106A - Heat exchanger, heat exchange system and method for evaporating and concentrating materials - Google Patents
Heat exchanger, heat exchange system and method for evaporating and concentrating materials Download PDFInfo
- Publication number
- CN116793106A CN116793106A CN202211479949.5A CN202211479949A CN116793106A CN 116793106 A CN116793106 A CN 116793106A CN 202211479949 A CN202211479949 A CN 202211479949A CN 116793106 A CN116793106 A CN 116793106A
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- heat exchange
- heat
- steam
- heat exchanger
- port
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- 239000000463 material Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001704 evaporation Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 17
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
The invention relates to a heat exchanger, a heat exchange system and a method for evaporating and concentrating materials. The heat exchanger is provided with the steam injection structure, after the heat exchange work is finished, cleaning liquid can be injected into the heat exchange part, steam is sprayed out through the steam injection structure to heat the cleaning liquid, and the outer surface of the heat exchange pipe is boiled and washed, so that the heat exchanger is not polluted when being used in a material evaporation concentration system.
Description
Technical Field
The invention relates to the field of waste gas treatment equipment, in particular to a heat exchanger, a heat exchange system and a heat exchange method for evaporating concentrated materials.
Background
At present, most of heat exchangers used for a system for evaporating and concentrating materials are tube-in-tube heat exchangers or plate heat exchangers, and the materials are usually indirectly heated by steam, so that moisture in the materials is evaporated, and the concentration of the materials is improved. In general, the evaporation and concentration equipment adopting the tube array heat exchanger is characterized in that materials travel through the tube side of the heat exchanger and steam travels through the shell side. In such a heat exchange mode, the materials scale in the tube, and the cleaning is inconvenient.
As mentioned above, the heat exchange scheme of the existing evaporative concentration system needs to be further improved.
Disclosure of Invention
The first object of the present invention is to overcome the problem that the heat exchanger of the existing evaporation and concentration system is difficult to clean, and to provide a heat exchanger with a steam injection structure in a heat exchange part, which can heat the cleaning liquid in the heat exchange part to clean the dirt of the heat exchange pipe.
In order to achieve the above object, the present invention adopts the following technical scheme:
the heat exchanger for evaporating and concentrating materials comprises a heat exchange part, an air inlet part and a water outlet part, wherein a plurality of heat exchange pipes and a steam injection structure are arranged in the heat exchange part, a first interface and a second interface are arranged on the outer side of the heat exchange part, the heat exchange pipes longitudinally penetrate through two ends of the heat exchange part, and the steam injection structure is connected with external air supply equipment through a pipeline; the air inlet part is arranged on the upper side of the heat exchange part and is provided with an air inlet; the water outlet part is arranged at the lower side of the heat exchange part and is provided with a water outlet; the heat exchange tube is communicated with the air inlet part and the water outlet part to form a first channel for conveying steam; the second channel is formed among the first interface, the heat exchange part and the second interface and is used for conveying steam or cleaning liquid, the steam injection structure sprays steam to heat the cleaning liquid in the second channel after heat exchange work is finished, and the first interface discharges sewage generated by cleaning.
The heat exchanger is provided with the steam injection structure, after the heat exchange work is finished, cleaning liquid can be injected into the heat exchange part, steam is sprayed out through the steam injection structure to heat the cleaning liquid, and the outer surface of the heat exchange pipe is boiled and washed, so that the heat exchanger is not polluted when being used in a material evaporation concentration system.
Further, the outer wall of the heat exchanger is provided with a window. This scheme convenience of customers observes dirt and the cleaning condition in the heat exchange portion through the window.
Further, the steam jet structure is arranged at the bottom of the heat exchange part and comprises at least two steam jet ports.
Further, the interval between the two steam injection ports is about 100mm.
Further, the heat exchange tube is a spiral wound tube. The scheme can enable the material to obtain a larger heat exchange coefficient under a lower flow velocity.
The invention further aims to provide a heat exchange system for evaporating and concentrating materials, which comprises an evaporator and the heat exchanger, wherein the evaporator comprises a machine body, a first through hole and a second through hole, the first through hole and the second through hole are arranged on the machine body, the first through hole is connected with a first interface, the second through hole is connected with a second interface, a material pump and a feed valve are arranged on a connecting pipeline of the first interface and the first through hole, the evaporator is provided with a feed port, the feed port is connected with the materials, the material pump pumps the materials into the pipeline, the feed valve controls the opening and closing of the pipeline, a sewage draining branch pipeline and a sewage draining valve are arranged on the pipeline between the feed valve and the first interface, and the sewage draining valve is arranged on the sewage draining branch pipeline.
Compared with the prior art, the system of the invention has the advantages of easy cleaning and high heat exchange efficiency due to the application of the heat exchanger.
A third object of the present invention is to provide a method for the heat exchange system, including a heat exchange procedure and a cleaning procedure, where the heat exchange procedure includes: a. the evaporator is connected with materials; b. the evaporator conveys the material to a second channel of the heat exchanger, the heat exchanger receives the material through the second channel and receives the steam through the first channel; v, exchanging heat between the steam and the material in the heat exchange part, generating condensed water after the steam releases heat and discharging the condensed water from the water outlet, generating a gas-liquid mixture after the material absorbs heat and outputting the gas-liquid mixture from the second interface; d. the evaporator is connected with a gas-liquid mixture generated by the heat exchanger, separates vapor in the gas-liquid mixture from concentrated liquid, discharges the vapor, and conveys the concentrated liquid to the heat exchange device for heat exchange; e. repeating the steps b-d until the concentration of the concentrated liquid reaches the preset concentration, and ending the heat exchange process. The cleaning process comprises the following steps: the evaporator is connected with the cleaning liquid and is conveyed into the heat exchanger to the heat exchanger, the heat exchanger receives the cleaning liquid through the second channel, the steam jet structure jets steam to heat the cleaning liquid so as to boil and wash dirt on the heat exchange tube, and the first interface discharges sewage generated by cleaning.
Compared with the prior art, the method of the invention has all the advantages of the heat exchange system because the heat exchange system is applied.
Drawings
FIG. 1 is a schematic diagram of a heat exchanger;
fig. 2 is a schematic diagram of the system.
Description of the reference numerals:
the heat exchanger 1, the heat exchange part 11, the window 12, the air inlet part 13, the air inlet 131, the water outlet part 14, the water outlet 141, the heat exchange tube 15, the steam injection structure 16, the first interface 17, the second interface 18, the evaporator 2, the first through port 21, the second through port 22, the material pump 3, the feed valve 4 and the blow-down valve 5.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings:
embodiment one:
the embodiment discloses a heat exchanger 1 for evaporating and concentrating materials, which comprises a heat exchange part 11, an air inlet part 13 and a water outlet part 14, wherein a plurality of heat exchange pipes 15 and a steam injection structure 16 are arranged in the heat exchange part 11, a first interface 17 and a second interface 18 are arranged on the outer side of the heat exchange part, the heat exchange pipes 15 longitudinally penetrate through two ends of the heat exchange part 11, and the steam injection structure 16 is connected with external air supply equipment through a pipeline; the air inlet part 13 is arranged on the upper side of the heat exchange part 11 and is provided with an air inlet 131; the water outlet part 14 is arranged at the lower side of the heat exchange part 11 and is provided with a water outlet 141; the heat exchange tube 15 is communicated with the air inlet part 13 and the water outlet part 14 to form a first channel for conveying steam; a second channel is formed among the first interface 17, the heat exchange part 11 and the second interface 18 for delivering steam or cleaning liquid, the steam spraying structure 16 sprays steam to heat the cleaning liquid in the second channel after the heat exchange work is finished, and the first interface 17 discharges sewage generated by cleaning.
The outer wall of the heat exchanging part is provided with a window 12, so that a user can observe the cleaning condition through the window 12.
The windows 12 are longitudinally arranged, and the horizontal positions of the windows 12 are equally spaced, so that the number of the arranged windows is reduced and the heat dissipation is reduced under the condition that a user can clearly observe each region in the heat exchange part through the windows.
The steam spraying structure 16 is provided at the bottom of the heat exchanging part 11 and includes at least two steam spraying ports.
The spacing between the two steam jets was about 100mm.
The heat exchange tube 15 is a spiral winding tube, so that a material can obtain a larger heat exchange coefficient at a lower flow rate.
The heat exchanger 1 is provided with the steam injection structure 16, after the heat exchange work is finished, cleaning liquid can be injected into the heat exchange part 11, steam is sprayed out through the steam injection structure 16 to heat the cleaning liquid, and the outer surface of the heat exchange tube 15 is boiled and washed, so that the heat exchanger 1 is not fouled when being used in a material evaporation concentration system.
Embodiment two:
the embodiment discloses a heat transfer system for material evaporation concentration, including evaporimeter 2 and above-mentioned heat exchanger 1, evaporimeter 2 includes the organism and sets up first through-hole 21 and the second through-hole 22 on the organism, first through-hole 21 is connected with first interface 17, second through-hole 22 is connected with second interface 18, be equipped with material pump 3 and feed valve 4 on the connecting tube of first interface 17 and first through-hole 21, evaporimeter 2 is equipped with the pan feeding mouth (not shown in the figure), the pan feeding mouth inserts the material, material pump 3 is gone into the pipeline with the material pump 3, the switching of feed valve 4 control pipeline, feed valve 4 with be equipped with a blowdown branch road and blowoff valve 5 on the pipeline between the first interface 17, blowoff valve 5 is established on the blowdown branch road.
Compared with the prior art, the heat exchange system of the embodiment has the advantages of easy cleaning and high heat exchange efficiency due to the application of the heat exchanger 1.
Embodiment III:
the embodiment discloses a method for the heat exchange system, which comprises a heat exchange process and a cleaning process, wherein the heat exchange process comprises the following steps: a. the evaporator 2 is connected with materials; b. the evaporator 2 conveys the material to a second channel of the heat exchanger 1, the heat exchanger 1 receives the material through the second channel and receives the steam through the first channel; v. the steam exchanges heat with the material in the heat exchange part 11, condensed water is generated after the steam releases heat and is discharged from the water outlet 141, and the material absorbs heat to generate a gas-liquid mixture and is output from the second interface 18; d. the evaporator 2 is connected with the gas-liquid mixture generated by the heat exchanger 1, separates the water vapor in the gas-liquid mixture from the concentrated liquid, discharges the vapor, and re-conveys the concentrated liquid to the heat exchange; e. repeating the steps b-d until the concentration of the concentrated liquid reaches the preset concentration, and ending the heat exchange process. The cleaning process comprises the following steps: the evaporator 2 is connected with cleaning liquid and is conveyed into the heat exchanger 1 to the heat exchanger, the heat exchanger 1 receives the cleaning liquid through a second channel, the steam spraying structure 16 sprays steam to heat the cleaning liquid so as to boil and wash dirt on the heat exchange tube 15, and the first interface 17 discharges sewage generated by cleaning.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (7)
1. A heat exchanger for evaporating and concentrating a material, comprising:
the heat exchange part is internally provided with a plurality of heat exchange pipes and a steam injection structure, the outer side of the heat exchange part is provided with a first interface and a second interface, the heat exchange pipes longitudinally penetrate through two ends of the heat exchange part, and the steam injection structure is connected with external air supply equipment through a pipeline;
the air inlet part is arranged on the upper side of the heat exchange part and is provided with an air inlet;
the water outlet part is arranged at the lower side of the heat exchange part and is provided with a water outlet;
the heat exchange tube is communicated with the air inlet part and the water outlet part to form a first channel for conveying steam; the second channel is formed among the first interface, the heat exchange part and the second interface and is used for conveying steam or cleaning liquid, the steam injection structure sprays steam to heat the cleaning liquid in the second channel after heat exchange work is finished, and the first interface discharges sewage generated by cleaning.
2. The heat exchanger of claim 1, wherein: the outer wall of the heat exchange part is provided with a window.
3. The heat exchanger of claim 1, wherein: the steam jet structure is arranged at the bottom of the heat exchange part and comprises at least two steam jet ports.
4. A heat exchanger according to claim 3, wherein: the spacing between the two steam jets was about 100mm.
5. The heat exchanger of claim 1, wherein: the heat exchange tube is a spiral winding tube.
6. A heat transfer system for material evaporation concentration, its characterized in that: the evaporator comprises an engine body, a first port and a second port which are arranged on the engine body, the first port is connected with the first port, the second port is connected with the second port, a material pump and a feed valve are arranged on a connecting pipeline of the first port and the first port, the evaporator is provided with a feed port, the feed port is connected with a material, the material pump pumps the material into the pipeline, the feed valve controls the opening and closing of the pipeline, a drain branch and a drain valve are arranged on the pipeline between the feed valve and the first port, and the drain valve is arranged on the drain branch.
7. A method for a heat exchange system according to claim 6, comprising a heat exchange process and a cleaning process,
the heat exchange flow comprises the following steps:
a. the evaporator is connected with materials;
b. the evaporator conveys the material to a second channel of the heat exchanger, the heat exchanger receives the material through the second channel and receives the steam through the first channel;
v, exchanging heat between the steam and the material in the heat exchange part, generating condensed water after the steam releases heat and discharging the condensed water from the water outlet, generating a gas-liquid mixture after the material absorbs heat and outputting the gas-liquid mixture from the second interface;
d. the evaporator is connected with a gas-liquid mixture generated by the heat exchanger, separates vapor in the gas-liquid mixture from concentrated liquid, discharges the vapor, and conveys the concentrated liquid to the heat exchange device for heat exchange;
e. repeating the steps b-d until the concentration of the concentrated liquid reaches the preset concentration, and ending the heat exchange process;
the cleaning process comprises the following steps:
the evaporator is connected with cleaning liquid and is conveyed into the heat exchanger to the heat exchanger,
the heat exchanger receives cleaning liquid through the second channel, the steam jet structure jets steam to heat the cleaning liquid so as to boil and wash dirt on the heat exchange tube, and the first interface discharges sewage generated by cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479949.5A CN116793106A (en) | 2022-11-21 | 2022-11-21 | Heat exchanger, heat exchange system and method for evaporating and concentrating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479949.5A CN116793106A (en) | 2022-11-21 | 2022-11-21 | Heat exchanger, heat exchange system and method for evaporating and concentrating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116793106A true CN116793106A (en) | 2023-09-22 |
Family
ID=88036706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211479949.5A Pending CN116793106A (en) | 2022-11-21 | 2022-11-21 | Heat exchanger, heat exchange system and method for evaporating and concentrating materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116793106A (en) |
-
2022
- 2022-11-21 CN CN202211479949.5A patent/CN116793106A/en active Pending
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