CN112723450A - Forced circulation evaporator for sewage treatment of thermal power plant - Google Patents
Forced circulation evaporator for sewage treatment of thermal power plant Download PDFInfo
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- CN112723450A CN112723450A CN202011587725.7A CN202011587725A CN112723450A CN 112723450 A CN112723450 A CN 112723450A CN 202011587725 A CN202011587725 A CN 202011587725A CN 112723450 A CN112723450 A CN 112723450A
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- liquid separator
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- liquid
- sewage treatment
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- 239000010865 sewage Substances 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002893 slag Substances 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims 2
- 239000002994 raw material Substances 0.000 abstract description 35
- 238000001704 evaporation Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000005039 chemical industry Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 12
- 238000000926 separation method Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002146 bilateral Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
Abstract
The invention discloses a forced circulation evaporator for sewage treatment of a thermal power plant, which comprises a gas-liquid separator, a tubular heat exchanger and a circulating pump, wherein the gas-liquid separator is arranged in the shell; the outer side of the tubular heat exchanger is respectively provided with a steam inlet, a feed inlet, a discharge outlet and a condensate water discharge outlet, a material pipe and a heating pipe are arranged inside the tubular heat exchanger, the material pipe is respectively communicated with the feed inlet and the discharge outlet, and the heating pipe is respectively communicated with the steam inlet and the condensate water discharge outlet; the bin outlet passes through feed liquor pipe and the inside intercommunication of vapour and liquid separator, the feed opening has been seted up to vapour and liquid separator's bottom, and the feed opening intercommunication has row material pipe, the feed liquor end and the row of circulating pump expect that the pipe communicates, and the flowing back end of circulating pump passes through circulating pipe and feed inlet intercommunication. The invention heats the raw material liquid for many times and separates gas and liquid, and is suitable for evaporation concentration in the industries of chemical industry, food, pharmacy, environmental protection engineering, waste liquid evaporation and recovery and the like, wherein the industries have scaling property, crystallinity, high concentration and high viscosity and contain insoluble solid matters.
Description
Technical Field
The invention relates to the technical field of rice cookers, in particular to a forced circulation evaporator for sewage treatment of a thermal power plant.
Background
The evaporator is an important part in four major refrigeration parts, and low-temperature condensed liquid passes through the evaporator and exchanges heat with the outside air, so that the evaporator is gasified to absorb heat, and the refrigeration effect is achieved.
The evaporator mainly comprises a heating chamber and an evaporation chamber. The heating chamber provides heat required by evaporation to the liquid to promote boiling and vaporization of the liquid; the evaporation chamber makes the gas phase and the liquid phase completely separated
The evaporator in the prior art is low in efficiency, cannot meet the increasing production and processing requirements, and in view of the current situation, a forced circulation evaporator for sewage treatment of a thermal power plant is urgently needed to overcome the defects in the current practical application.
Disclosure of Invention
The invention aims to provide a forced circulation evaporator for sewage treatment of a thermal power plant, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a forced circulation evaporator for sewage treatment of a thermal power plant comprises a gas-liquid separator, a tubular heat exchanger and a circulating pump; the outer side of the tubular heat exchanger is respectively provided with a steam inlet, a feed inlet, a discharge outlet and a condensate water discharge outlet, a material pipe and a heating pipe are arranged inside the tubular heat exchanger, the material pipe is respectively communicated with the feed inlet and the discharge outlet, and the heating pipe is respectively communicated with the steam inlet and the condensate water discharge outlet; the bin outlet passes through feed liquor pipe and the inside intercommunication of vapour and liquid separator, the feed opening has been seted up to vapour and liquid separator's bottom, and the feed opening intercommunication has row material pipe, the feed liquor end and the row of circulating pump expect that the pipe communicates, and the flowing back end of circulating pump passes through circulating pipe and feed inlet intercommunication.
As a further scheme of the invention: the feed inlet is arranged at the bottom of the tubular heat exchanger, and the discharge outlet is arranged at the upper part of the tubular heat exchanger.
As a further scheme of the invention: and the top of the gas-liquid separator is provided with a secondary steam outlet.
As a further scheme of the invention: the inside fixed mounting of vapour and liquid separator has the filter screen, and the filter screen is V type structure, and the bilateral symmetry slidable mounting of filter screen has two scrapers, inside still installing the actuating mechanism that the drive scraper blade removed to both sides along the filter screen of vapour and liquid separator.
As a further scheme of the invention: the driving mechanism comprises an adjusting screw rod rotatably installed at the bottom of the filter screen, the left side and the right side of the adjusting screw rod are symmetrically provided with two external threads with opposite rotating directions, the left side and the right side of the adjusting screw rod are further symmetrically in threaded connection with two adjusting threaded sleeves, and the adjusting threaded sleeves are connected with the scraper plate through connecting rods.
As a further scheme of the invention: the connecting rod is of a telescopic rod structure.
As a further scheme of the invention: and a driving motor for driving the adjusting screw rod to rotate is fixedly arranged in the gas-liquid separator and is a speed reducing motor.
As a further scheme of the invention: two material collecting boxes are symmetrically arranged on the left side and the right side of the gas-liquid separator, the material collecting boxes are communicated with the inside of the gas-liquid separator through a slag discharge port, and the slag discharge port is arranged at the inclined end of the upper part of the filter screen.
As a further scheme of the invention: the heating pipe is of a threaded pipe structure and is wound on the outer side of the material pipe.
As a further scheme of the invention: the discharging pipe comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, and two ends of the inner pipe are respectively communicated with the feed opening and the liquid inlet end of the circulating pump; and a preheating layer is arranged between the outer pipe and the inner pipe, and the condensed water discharge port is communicated with the preheating layer through a water inlet pipe.
Compared with the prior art, the invention has the beneficial effects that: the raw material liquid is fed from a feed inlet, flows along a material pipe and then is discharged from a discharge outlet, high-temperature steam is fed from a steam inlet into a heating pipe, the high-temperature steam flows along the heating pipe, is condensed into water after heat exchange with the raw material liquid and is discharged from a condensed water discharge outlet, the raw material liquid heated by the high-temperature steam flows into a gas-liquid separator from a liquid inlet pipe, the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator, fluid is discharged from the discharge pipe under the action of gravity, is sucked in by a circulating pump and is fed into the feed inlet from a circulating pipe, and the raw material liquid is subjected to multiple heating and gas-liquid separation.
Drawings
Fig. 1 is a schematic structural diagram of a forced circulation evaporator for sewage treatment of a thermal power plant.
Fig. 2 is a schematic structural diagram of a gas-liquid separator in a forced circulation evaporator for sewage treatment in a thermal power plant.
Fig. 3 is a schematic structural diagram of a tubular heat exchanger in a forced circulation evaporator for sewage treatment in a thermal power plant.
Fig. 4 is a schematic structural diagram of a discharge pipe in a forced circulation evaporator for sewage treatment in a thermal power plant.
In the figure:
1-a gas-liquid separator,
101-secondary steam outlet, 102-feed opening, 103-material collecting box, 104-slag discharge opening, 105-filter screen, 106-scraper, 107-adjusting screw rod, 108-adjusting screw sleeve, 109-connecting rod,
2-tubular heat exchanger,
201-steam inlet, 202-feed inlet, 203-discharge outlet, 204-condensate discharge outlet, 205-liquid inlet pipe, 206-water inlet pipe, 207-circulating pipe, 208-material pipe, 209-heating pipe,
3-a circulating pump,
4-a discharge pipe,
401-outer tube, 402-inner tube, 403-preheat layer.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1, in the embodiment of the present invention,
a forced circulation evaporator for sewage treatment of a thermal power plant comprises a gas-liquid separator 1, a tubular heat exchanger 2 and a circulating pump 3; a steam inlet 201, a feed inlet 202, a discharge outlet 203 and a condensate water discharge outlet 204 are respectively formed in the outer side of the tubular heat exchanger 2, a material pipe 208 and a heating pipe 209 are arranged in the tubular heat exchanger 2, the material pipe 208 is respectively communicated with the feed inlet 202 and the discharge outlet 203, the heating pipe 209 is respectively communicated with the steam inlet 201 and the condensate water discharge outlet 204, raw material liquid is introduced into the material pipe 208 from the feed inlet 202, the raw material liquid flows along the material pipe 208 and then is discharged from the discharge outlet 203, high-temperature steam is introduced into the heating pipe 209 from the steam inlet 201, the high-temperature steam flows along the heating pipe 209, is condensed into water after heat exchange with the raw material liquid, and is discharged from; the discharge opening 203 is communicated with the interior of the gas-liquid separator 1 through a liquid inlet pipe 205, the bottom of the gas-liquid separator 1 is provided with a discharge opening 102, the discharge opening 102 is communicated with a discharge pipe 4, the liquid inlet end of the circulating pump 3 is communicated with the discharge pipe 4, the liquid discharge end of the circulating pump 3 is communicated with the feed opening 202 through a circulating pipe 207, a raw material liquid heated by high-temperature steam flows into the gas-liquid separator 1 through the liquid inlet pipe 205, the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, fluid is discharged from the discharge pipe 4 under the action of gravity, is sucked in by the circulating pump 3, is introduced into the feed opening 202 through the circulating pipe 207, and is subjected to multiple;
in the embodiment of the present invention, it is,
the feed inlet 202 is arranged at the bottom of the tubular heat exchanger 2, and the discharge outlet 203 is arranged at the upper part of the tubular heat exchanger 2;
in the embodiment of the present invention, it is,
the top of the gas-liquid separator 1 is provided with a secondary steam outlet 101, and when the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, steam is discharged from the secondary steam outlet 101.
Example 2
Referring to fig. 1, in the embodiment of the present invention,
a forced circulation evaporator for sewage treatment of a thermal power plant comprises a gas-liquid separator 1, a tubular heat exchanger 2 and a circulating pump 3; a steam inlet 201, a feed inlet 202, a discharge outlet 203 and a condensate water discharge outlet 204 are respectively formed in the outer side of the tubular heat exchanger 2, a material pipe 208 and a heating pipe 209 are arranged in the tubular heat exchanger 2, the material pipe 208 is respectively communicated with the feed inlet 202 and the discharge outlet 203, the heating pipe 209 is respectively communicated with the steam inlet 201 and the condensate water discharge outlet 204, raw material liquid is introduced into the material pipe 208 from the feed inlet 202, the raw material liquid flows along the material pipe 208 and then is discharged from the discharge outlet 203, high-temperature steam is introduced into the heating pipe 209 from the steam inlet 201, the high-temperature steam flows along the heating pipe 209, is condensed into water after heat exchange with the raw material liquid, and is discharged from; the discharge opening 203 is communicated with the interior of the gas-liquid separator 1 through a liquid inlet pipe 205, the bottom of the gas-liquid separator 1 is provided with a discharge opening 102, the discharge opening 102 is communicated with a discharge pipe 4, the liquid inlet end of the circulating pump 3 is communicated with the discharge pipe 4, the liquid discharge end of the circulating pump 3 is communicated with the feed opening 202 through a circulating pipe 207, a raw material liquid heated by high-temperature steam flows into the gas-liquid separator 1 through the liquid inlet pipe 205, the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, fluid is discharged from the discharge pipe 4 under the action of gravity, is sucked in by the circulating pump 3, is introduced into the feed opening 202 through the circulating pipe 207, and is subjected to multiple;
in the embodiment of the present invention, it is,
the feed inlet 202 is arranged at the bottom of the tubular heat exchanger 2, and the discharge outlet 203 is arranged at the upper part of the tubular heat exchanger 2;
in the embodiment of the present invention, the top of the gas-liquid separator 1 is provided with a secondary steam outlet 101, and when the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, steam is discharged from the secondary steam outlet 101.
Referring to fig. 2, the difference between the present embodiment and embodiment 1 is:
a filter screen 105 is fixedly installed in the gas-liquid separator 1, the filter screen 105 is of a V-shaped structure, two scrapers 106 are symmetrically installed on the left side and the right side of the filter screen 105 in a sliding manner, a driving mechanism for driving the scrapers 106 to move towards two sides along the filter screen 105 is further installed in the gas-liquid separator 1, the scrapers 106 are driven to move from bottom to top along the filter screen 105, and impurities in the raw material liquid on the surface of the filter screen 105 are scraped;
in the embodiment of the present invention, it is,
the driving mechanism comprises an adjusting screw 107 rotatably mounted at the bottom of the filter screen 105, two types of external threads with opposite rotation directions are symmetrically arranged on the left side and the right side of the adjusting screw 107, the left side and the right side of the adjusting screw 107 are also symmetrically and threadedly connected with two adjusting threaded sleeves 107, the adjusting threaded sleeves 107 are connected with the scraper 106 through connecting rods 109, the adjusting screw 107 drives the two adjusting threaded sleeves 107 to move back to back, and the connecting rods 109 drive the scraper 106 to move along the filter screen 105;
it should be noted that, in the embodiment of the present invention,
the connecting rod 109 is of a telescopic rod structure and can adjust the length along with the movement of the adjusting screw sleeve 107;
it is further noted that, in the embodiments of the present invention,
a driving motor for driving the adjusting screw 107 to rotate is fixedly installed in the gas-liquid separator 1, and the driving motor is a speed reducing motor;
in a further embodiment of the present invention,
two material collecting boxes 103 are symmetrically arranged on the left side and the right side of the gas-liquid separator 1, the material collecting boxes 103 are communicated with the inside of the gas-liquid separator 1 through a slag discharge port 104, and the slag discharge port 104 is arranged at the inclined end of the upper part of a filter screen 105 and used for collecting residues scraped by a scraper 106.
Example 3
Referring to fig. 1, in the embodiment of the present invention,
a forced circulation evaporator for sewage treatment of a thermal power plant comprises a gas-liquid separator 1, a tubular heat exchanger 2 and a circulating pump 3; a steam inlet 201, a feed inlet 202, a discharge outlet 203 and a condensate water discharge outlet 204 are respectively formed in the outer side of the tubular heat exchanger 2, a material pipe 208 and a heating pipe 209 are arranged in the tubular heat exchanger 2, the material pipe 208 is respectively communicated with the feed inlet 202 and the discharge outlet 203, the heating pipe 209 is respectively communicated with the steam inlet 201 and the condensate water discharge outlet 204, raw material liquid is introduced into the material pipe 208 from the feed inlet 202, the raw material liquid flows along the material pipe 208 and then is discharged from the discharge outlet 203, high-temperature steam is introduced into the heating pipe 209 from the steam inlet 201, the high-temperature steam flows along the heating pipe 209, is condensed into water after heat exchange with the raw material liquid, and is discharged from; the discharge opening 203 is communicated with the interior of the gas-liquid separator 1 through a liquid inlet pipe 205, the bottom of the gas-liquid separator 1 is provided with a discharge opening 102, the discharge opening 102 is communicated with a discharge pipe 4, the liquid inlet end of the circulating pump 3 is communicated with the discharge pipe 4, the liquid discharge end of the circulating pump 3 is communicated with the feed opening 202 through a circulating pipe 207, a raw material liquid heated by high-temperature steam flows into the gas-liquid separator 1 through the liquid inlet pipe 205, the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, fluid is discharged from the discharge pipe 4 under the action of gravity, is sucked in by the circulating pump 3, is introduced into the feed opening 202 through the circulating pipe 207, and is subjected to multiple;
in the embodiment of the present invention, it is,
the feed inlet 202 is arranged at the bottom of the tubular heat exchanger 2, and the discharge outlet 203 is arranged at the upper part of the tubular heat exchanger 2;
in the embodiment of the present invention, the top of the gas-liquid separator 1 is provided with a secondary steam outlet 101, and when the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator 1, steam is discharged from the secondary steam outlet 101.
Referring to fig. 2, the difference between the present embodiment and embodiment 1 is:
a filter screen 105 is fixedly installed in the gas-liquid separator 1, the filter screen 105 is of a V-shaped structure, two scrapers 106 are symmetrically installed on the left side and the right side of the filter screen 105 in a sliding manner, a driving mechanism for driving the scrapers 106 to move towards two sides along the filter screen 105 is further installed in the gas-liquid separator 1, the scrapers 106 are driven to move from bottom to top along the filter screen 105, and impurities in the raw material liquid on the surface of the filter screen 105 are scraped;
in the embodiment of the invention, the driving mechanism comprises an adjusting screw 107 rotatably mounted at the bottom of the filter screen 105, two types of external threads with opposite rotation directions are symmetrically arranged on the left side and the right side of the adjusting screw 107, the left side and the right side of the adjusting screw 107 are also symmetrically and threadedly connected with two adjusting threaded sleeves 107, the adjusting threaded sleeves 107 are connected with the scraper 106 through a connecting rod 109, the adjusting screw 107 drives the two adjusting threaded sleeves 107 to move back to back, and the connecting rod 109 drives the scraper 106 to move along the filter screen 105;
it should be noted that, in the embodiment of the present invention, the connecting rod 109 is a telescopic rod structure, and can adjust the length along with the movement of the adjusting screw sleeve 107;
it should be further noted that, in the embodiment of the present invention, a driving motor for driving the adjusting screw 107 to rotate is further fixedly installed inside the gas-liquid separator 1, and the driving motor is a speed reducing motor;
in another embodiment of the present invention, two material collecting boxes 103 are symmetrically installed on the left and right sides of the gas-liquid separator 1, the material collecting boxes 103 are communicated with the inside of the gas-liquid separator 1 through a slag discharge port 104, and the slag discharge port 104 is opened at the upper inclined end of the filter screen 105 and is used for collecting the residues scraped by the scraper 106.
Referring to fig. 3-4, the difference between the present embodiment and the embodiment 1-2 is:
in the embodiment of the present invention, the heating pipe 209 is a threaded pipe structure, and the heating pipe 209 is wound on the outer side of the material pipe 208, so as to improve the contact efficiency between the high temperature steam and the raw material liquid, and further increase the heating speed of the raw material liquid;
in another embodiment of the present invention, the discharge pipe 4 comprises an outer pipe 401 and an inner pipe 402, the inner pipe 402 is disposed inside the outer pipe 401, and two ends of the inner pipe 402 are respectively communicated with the feed opening 102 and the liquid inlet end of the circulation pump 3; be provided with preheating layer 403 between outer tube 401 and the inner tube 402, condensate water discharge port 204 passes through inlet tube 206 and preheats layer 403 intercommunication, and the condensate water has certain temperature, lets in preheating layer 403 and preheats raw materials liquid for the speed of raising the temperature of raw materials liquid, and the energy saving avoids the heat energy waste in the condensate water simultaneously.
The raw material liquid is fed from a feed inlet, flows along a material pipe and then is discharged from a discharge outlet, high-temperature steam is fed from a steam inlet into a heating pipe, the high-temperature steam flows along the heating pipe, is condensed into water after heat exchange with the raw material liquid and is discharged from a condensed water discharge outlet, the raw material liquid heated by the high-temperature steam flows into a gas-liquid separator from a liquid inlet pipe, the raw material liquid is subjected to gas-liquid separation in the gas-liquid separator, fluid is discharged from the discharge pipe under the action of gravity, is sucked in by a circulating pump and is fed into the feed inlet from a circulating pipe, and the raw material liquid is subjected to multiple heating and gas-liquid separation.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. A forced circulation evaporator for sewage treatment of a thermal power plant is characterized by comprising a gas-liquid separator (1), a tubular heat exchanger (2) and a circulating pump (3); a steam inlet (201), a feed inlet (202), a discharge outlet (203) and a condensate water discharge outlet (204) are respectively formed in the outer side of the tubular heat exchanger (2), a material pipe (208) and a heating pipe (209) are arranged in the tubular heat exchanger (2), the material pipe (208) is respectively communicated with the feed inlet (202) and the discharge outlet (203), and the heating pipe (209) is respectively communicated with the steam inlet (201) and the condensate water discharge outlet (204); discharge gate (203) are through feed liquor pipe (205) and the inside intercommunication of vapour and liquid separator (1), feed opening (102) have been seted up to the bottom of vapour and liquid separator (1), and feed opening (102) intercommunication has row material pipe (4), the feed liquor end and the row of material pipe (4) intercommunication of circulating pump (3), the flowing back end of circulating pump (3) is through circulating pipe (207) and feed inlet (202) intercommunication.
2. The forced circulation evaporator for sewage treatment of a thermal power plant according to claim 1, characterized in that the feed inlet (202) is opened at the bottom of the tubular heat exchanger (2) and the discharge outlet (203) is opened at the upper part of the tubular heat exchanger (2).
3. The forced circulation evaporator for sewage treatment of a thermal power plant as claimed in claim 2, wherein the top of the gas-liquid separator (1) is opened with a secondary steam discharge port (101).
4. The forced circulation evaporator for sewage treatment of the thermal power plant according to claim 1, wherein a filter screen (105) is fixedly installed inside the gas-liquid separator (1), the filter screen (105) is of a V-shaped structure, two scraping plates (106) are symmetrically and slidably installed on the left side and the right side of the filter screen (105), and a driving mechanism for driving the scraping plates (106) to move towards two sides along the filter screen (105) is further installed inside the gas-liquid separator (1).
5. The forced circulation evaporator for sewage treatment of the thermal power plant according to claim 4, wherein the driving mechanism comprises an adjusting screw (107) rotatably mounted at the bottom of the filter screen (105), the left side and the right side of the adjusting screw (107) are symmetrically provided with two external threads with opposite rotation directions, the left side and the right side of the adjusting screw (107) are further symmetrically and threadedly connected with two adjusting screw sleeves (107), and the adjusting screw sleeves (107) are connected with the scraper (106) through connecting rods (109).
6. The forced circulation evaporator for thermal power plant sewage treatment according to claim 5, characterized in that the connecting rod (109) is a telescopic rod structure.
7. The forced circulation evaporator for sewage treatment of the thermal power plant according to claim 6, wherein a driving motor for driving the adjusting screw rod (107) to rotate is further fixedly installed inside the gas-liquid separator (1), and the driving motor is a speed reduction motor.
8. The forced circulation evaporator for sewage treatment of the thermal power plant as claimed in claim 7, wherein two material collecting boxes (103) are symmetrically installed on the left side and the right side of the gas-liquid separator (1), the material collecting boxes (103) are communicated with the inside of the gas-liquid separator (1) through a slag discharge port (104), and the slag discharge port (104) is arranged at the inclined end of the upper part of the filter screen (105).
9. The forced circulation evaporator for sewage treatment of thermal power plants according to claim 1, characterized in that the heating pipe (209) is of a threaded pipe structure, and the heating pipe (209) is wound on the outer side of the material pipe (208).
10. The forced circulation evaporator for sewage treatment of the thermal power plant according to any one of claims 1 to 9, wherein the discharge pipe (4) comprises an outer pipe (401) and an inner pipe (402), the inner pipe (402) is arranged inside the outer pipe (401), and two ends of the inner pipe (402) are respectively communicated with the feed opening (102) and the liquid inlet end of the circulating pump (3); a preheating layer (403) is arranged between the outer pipe (401) and the inner pipe (402), and the condensed water discharge port (204) is communicated with the preheating layer (403) through a water inlet pipe (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587725.7A CN112723450A (en) | 2020-12-29 | 2020-12-29 | Forced circulation evaporator for sewage treatment of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587725.7A CN112723450A (en) | 2020-12-29 | 2020-12-29 | Forced circulation evaporator for sewage treatment of thermal power plant |
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| CN112723450A true CN112723450A (en) | 2021-04-30 |
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| CN202011587725.7A Pending CN112723450A (en) | 2020-12-29 | 2020-12-29 | Forced circulation evaporator for sewage treatment of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262549A (en) * | 2021-07-16 | 2021-08-17 | 东营华亚国联航空燃料有限公司 | Isooctane processing purification device |
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2020
- 2020-12-29 CN CN202011587725.7A patent/CN112723450A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262549A (en) * | 2021-07-16 | 2021-08-17 | 东营华亚国联航空燃料有限公司 | Isooctane processing purification device |
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