CN213623353U - Waste water heat pump type low-temperature evaporator - Google Patents
Waste water heat pump type low-temperature evaporator Download PDFInfo
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- CN213623353U CN213623353U CN202022261632.7U CN202022261632U CN213623353U CN 213623353 U CN213623353 U CN 213623353U CN 202022261632 U CN202022261632 U CN 202022261632U CN 213623353 U CN213623353 U CN 213623353U
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Abstract
The utility model relates to the technical field of wastewater treatment, in particular to a wastewater heat pump type low-temperature evaporator, which solves the defects in the prior art and comprises a defoaming tank, a first heat exchanger, a second heat exchanger and a condensate water circulating barrel, wherein the bottom of the defoaming tank is fixedly connected with a Teflon plate, the top of the Teflon plate is provided with a defoaming device, the defoaming device is positioned inside the defoaming tank, one side of the defoaming tank is fixedly connected with a steam pipeline through a flange plate, the evaporator has the advantages of small occupied area, simple operation flow, higher automation degree of the equipment, 30 degrees of water evaporation temperature, difficult scaling in the evaporator at the temperature, greatly reduced maintenance cost of the equipment, difficult volatilization of organic matters in the low-temperature evaporation process of the water, higher water outlet quality, and improved compactness of the water treatment equipment, but also greatly reduces the energy consumption of the water treatment equipment.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a waste water heat pump type low temperature evaporator.
Background
In the face of increasingly severe environment-friendly situation and high waste liquid treatment cost, the sewage discharge cost of enterprises is obviously increased, the cost of the traditional waste water evaporation treatment process is high, the cost is high, a device for evaporating waste water by using a heat pump is specially developed aiming at the problems, the whole evaporation device realizes integral equipment integrating heating, evaporation and condensation, the manufacturing cost of the whole set of system is greatly reduced, and the compactness of the structure is greatly improved.
Most use is multi-effect evaporator and MVR evaporimeter in the existing market, and the evaporating temperature of these two kinds of evaporimeters all is more than 90 degrees, and water evaporates under such high temperature, and the organic matter of the inside volatilizees very easily, causes that outlet water quality of water is unclean, the COD value is too high, subsequent water treatment process and cost increase, and the evaporimeter is very easily scaled moreover, and the maintenance cost is high, also greatly reduced to the life of equipment. In combination with the current situation, a novel evaporator is especially developed, and the improvement on the existing evaporation mode is greatly improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a waste water heat pump type low-temperature evaporator.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a waste water heat pump type low-temperature evaporator comprises a defoaming tank, a first heat exchanger, a second heat exchanger and a condensate water circulating barrel, wherein a Teflon plate is fixedly connected to the bottom of the defoaming tank, a defoaming device is mounted at the top of the Teflon plate and located inside the defoaming tank, a steam pipeline is fixedly connected to one side of the defoaming tank through a flange plate, the other end of the steam pipeline is connected with the first heat exchanger, and a distillation tank communicated with the inside of the defoaming tank is fixedly connected to the bottom of the Teflon plate;
baffle plates which are distributed in a staggered manner are fixed in the distillation tank through bolts, a wastewater inlet pipeline and a medicament pipeline are fixed on one side of the distillation tank through flange plates respectively, a discharge pipeline is fixed at the bottom of the distillation tank through a flange plate, and a concentrated solution discharge electromagnetic valve and a concentrated solution pump are installed on the discharge pipeline respectively;
one side and the bottom of the first heat exchanger are respectively and fixedly connected with a connecting pipeline and a distilled water pipeline through flange plates, the other end of the connecting pipeline is fixedly connected with the second heat exchanger, the other end of the distilled water pipeline is fixedly connected with a distilled water circulating pipeline, and the other end of the distilled water circulating pipeline extends into the condensed water circulating barrel;
one side of the second heat exchanger is fixedly connected with a refrigerant pipeline and an expansion valve outlet pipeline through flange plates respectively, the other end of the refrigerant pipeline is fixedly connected with a refrigerant return pipeline, the other end of the refrigerant return pipeline is fixedly connected with a refrigerant outlet pipeline, the other end of the refrigerant outlet pipeline is fixedly provided with a heat exchange pipe, the heat exchange pipe is positioned inside the distillation tank, the other end of the heat exchange pipe is fixedly connected with the expansion valve outlet pipeline, and an expansion valve and a refrigerant condenser are sequentially installed on the expansion valve outlet pipeline;
and the two sides of the condensed water circulating barrel are respectively fixedly connected with a distilled water outflow pipeline and a distilled water inflow pipeline through flange plates, and the other end of the distilled water inflow pipeline is fixedly connected with the bottom of the second heat exchanger.
Preferably, one side of the defoaming tank is provided with a vacuum exhaust valve.
Preferably, a wastewater inlet control electromagnetic valve and a medicament inlet control electromagnetic valve are respectively arranged on the wastewater inlet pipeline and the medicament pipeline.
Preferably, the distillation tank is internally provided with a foam sensor and a liquid level sensor respectively.
Preferably, one side fixedly connected with of defoaming jar washs the pipeline, washs the tip of pipeline and installs the washing nozzle, the washing nozzle is located the inside of defoaming jar, and installs washing water pump and washing pipeline solenoid valve on the washing pipeline in proper order.
Preferably, the distilled water pipeline is provided with a distilled water circulating pump.
Preferably, a heat pump compressor is installed on the refrigerant return pipeline.
The utility model has the advantages that:
1. the utility model discloses well evaporimeter's advantage lies in that area is little, and operation flow is simple, and the degree of automation of equipment is than higher moreover, and the evaporating temperature of water is only 30 degrees, and the inside difficult scale deposit of evaporimeter under this kind of temperature is to the maintenance cost greatly reduced of equipment to water is at the in-process of low temperature evaporation, and the organic matter is difficult for volatilizing, makes out water quality of water higher, can not only improve water treatment facilities's compactedness, moreover can greatly reduced water treatment facilities's energy consumption.
2. The utility model discloses only used a retort, a distilled water circulation jar, two heat exchangers and three pump among well whole low temperature vaporization system, whole vaporization system's efficiency improves greatly, makes low temperature vaporization system's energy consumption greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a waste water heat pump type low-temperature evaporator provided by the present invention;
fig. 2 is a control schematic diagram of the waste water heat pump type low-temperature evaporator provided by the utility model.
In the figure: 1 a wastewater inlet control electromagnetic valve, 2 a wastewater inlet pipeline, 3 a defoaming tank, 4 a first heat exchanger, 5 a vacuum exhaust valve, 6 a refrigerant pipeline, 7 a distilled water pipeline, 8 an expansion valve outlet pipeline, 9 an expansion valve, 10 a condensed water circulating barrel, 11 a distilled water outlet pipeline, 12 a distilled water circulating pipeline, 13 a heat refrigerant outlet pipeline, 14 a heat pump compressor, 15 a refrigerant return pipeline, 16 a distilled water circulating pump, 17 a distilled water outlet pipeline, 18 a steam pipeline, 19 a cleaning water pump, 20 baffle plates, 21 a concentrated solution discharge electromagnetic valve, 22 a concentrated solution pump, 23 a cleaning pipeline electromagnetic valve, 24 a cleaning nozzle, 25 a heat exchanger, 26 a distillation tank, 27 a Teflon plate, 28 a defoaming device, 29 a refrigerant condenser, 30 a second heat exchanger, 31 a medicament inlet control electromagnetic valve, 32 a medicament pipeline, 33 a foam sensor and 34 a liquid level sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a waste water heat pump type low-temperature evaporator comprises a defoaming tank 3, a first heat exchanger 4, a second heat exchanger 30 and a condensed water circulating barrel 10, wherein a teflon plate 27 is fixedly connected to the bottom of the defoaming tank 3, a defoaming device 28 is installed at the top of the teflon plate 27, the defoaming device 28 is located inside the defoaming tank 3, a steam pipeline 18 is fixedly connected to one side of the defoaming tank 3 through a flange plate, the other end of the steam pipeline 18 is connected with the first heat exchanger 4, and a distillation tank 26 communicated with the inside of the defoaming tank 3 is fixedly connected to the bottom of the teflon plate 27; baffle plates 20 which are distributed in a staggered manner are fixed in the distillation tank 26 through bolts, a wastewater inlet pipeline 2 and a medicament pipeline 32 are fixed on one side of the distillation tank 26 through flanges, a discharge pipeline is fixed at the bottom of the distillation tank 26 through a flange, and a concentrated solution discharge electromagnetic valve 21 and a concentrated solution pump 22 are installed on the discharge pipeline respectively; one side and the bottom of the first heat exchanger 4 are fixedly connected with a connecting pipeline and a distilled water pipeline 7 through flange plates respectively, the other end of the connecting pipeline is fixedly connected with the second heat exchanger 30, the other end of the distilled water pipeline 7 is fixedly connected with a distilled water circulating pipeline 12, and the other end of the distilled water circulating pipeline 12 extends into the condensed water circulating barrel 10; one side of the second heat exchanger 30 is fixedly connected with a refrigerant pipeline 6 and an outlet pipeline 8 of an expansion valve 9 through flange plates respectively, the other end of the refrigerant pipeline 6 is fixedly connected with a refrigerant return pipeline 15, the other end of the refrigerant return pipeline 15 is fixedly connected with a refrigerant outlet pipeline, the other end of the refrigerant outlet pipeline is fixed with a heat exchange pipe 25, the heat exchange pipe 25 is positioned inside the distillation tank 26, the other end of the heat exchange pipe 25 is fixedly connected with the outlet pipeline 8 of the expansion valve 9, and the expansion valve 9 and a refrigerant condenser 29 are sequentially installed on the outlet pipeline 8 of the expansion valve 9; the two sides of the condensed water circulating barrel 10 are fixedly connected with a distilled water outflow pipeline 11 and a distilled water inflow pipeline 17 through flange plates respectively, and the other end of the distilled water inflow pipeline 17 is fixedly connected with the bottom of the second heat exchanger 30.
Wherein, one side of defoaming jar 3 is equipped with vacuum exhaust valve 5, install waste water inlet control solenoid valve 1 and medicament inlet control solenoid valve 31 on waste water inlet pipeline 2 and the medicament pipeline 32 respectively, foam sensor 33 and level sensor 34 are installed respectively to the inside of retort 26, one side fixedly connected with washing pipeline of defoaming jar 3, wash nozzle 24 is installed to the tip of washing pipeline, wash nozzle 24 is located the inside of defoaming jar 3, and install washing water pump 19 and washing pipeline solenoid valve 23 on the washing pipeline in proper order, install distilled water circulating pump 16 on the distilled water pipeline 7, install heat pump compressor 14 on the refrigerant return line 15.
In the embodiment, evaporation and condensation are completed in a whole system, wherein the distillation tank 26 and the defoaming tank are assembled together in a flange connection mode, the evaporation space of the distillation tank is ensured to have a certain height, a Teflon plate 27 is additionally arranged in the middle part of the distillation tank, so that the heat insulation effect is good, the foaming problem of waste water in the distillation process can be inhibited, rising water vapor is pure and does not fall off easily, a partition plate made of metal is avoided, a part of rising water vapor is easy to condense and fall off, and the volatilization speed of the water vapor is greatly improved; meanwhile, the upper part of the distillation tank 26 is provided with a baffle plate 20 which can prevent the liquid from generating foam during boiling to the maximum extent so as to ensure that the evaporated clean water vapor is volatilized to a condensation heat exchanger connected with the distillation tank 26, the shell side of the heat exchanger is provided with circulating pipe condensed water, the water vapor enters the pipe side of the heat exchanger and can be rapidly condensed into liquid water, the condensed water is continuously pumped out by a vacuum device, the pumped water enters a clean water circulating tank, the circulating tank can generate high-strength vacuum by the way that the water rapidly flows through a vacuum generator, the water can be boiled and volatilized at more than 30 ℃, after the distilled water is sucked into the clean water circulating tank, the clean water circulating tank is in a closed state, only a clean water outlet is reserved at the upper part of the tank body, when the distilled water continuously distilled enters the circulating tank, and the water in the tank body is full, the water pump water outlet is connected with the bottom of the circulating tank body, the water outlet of the water pump flows to one of the heat exchangers through the ejector, so that the water in the circulating tank firstly passes through a cold refrigerant on the shell layer of the tube pass of one of the heat exchangers and then passes through the shell layer of the other heat exchanger, and finally returns to the clean water circulating tank, thereby ensuring the condensation temperature on two sides, ensuring the low temperature of the flowing distilled water, ensuring the water quality of the discharged water, meeting the requirement of discharge, completing all actions of condensation, heat exchange, vacuum pumping and water discharge by only one water pump in the whole process, and greatly improving the running stability of the equipment.
The utility model discloses a concrete implementation process as follows: when the system starts to operate, clean water is pre-stored in the condensed water circulating barrel 10, the distilled water circulating pump 16 is started to operate, the clean water in the condensed water circulating barrel 10 is sucked by the distilled water circulating pump 16 and flows out, then flows out to the shell layer of the first heat exchanger 4 through the vacuum ejector, then flows through the tube layer of the second heat exchanger 30 and finally returns to the condensed water circulating barrel 10;
further, the process is continuously carried out, the air in the defoaming tank 3 and the distillation tank 26 is continuously pumped out, so that vacuum is formed in the distillation tank 26, the waste liquid is sucked into the distillation tank 26 through the waste water inlet control electromagnetic valve 1 and the waste water inlet pipeline 2, when the waste liquid reaches a set liquid level, a liquid level sensor 34 arranged on the distillation tank 26 senses a signal and closes the waste water inlet control electromagnetic valve 1, the waste liquid does not enter, the vacuum degree is continuously increased at the moment, when the pressure in the distillation tank 26 reaches above 90KPa, the heat pump compressor 14 starts to operate, the heat and cold medium continuously enters the heat exchanger 25 from the outlet 13 and continuously exchanges heat with the waste liquid in the distillation tank 26, the heat and cold medium passes through the refrigerant condenser 29 after exiting from the heat exchanger 25 and then enters the expansion valve 9, and then is changed into low-temperature and low-pressure cold after exiting through the expansion valve 9, then enters the shell layer (upper inlet and lower outlet) of the second heat exchanger 30 through the outlet pipeline 8, flows out and returns to the compressor through the refrigerant pipeline 6 and the refrigerant return pipeline 15.
Wherein, because of the higher vacuum degree, make the waste liquid begin to boil when heated to 30 degrees, the liquid of boiling is constantly vaporized and changed into the vapor, the vapor that is constantly vaporized will continue to rise, because the diversity and the vacuum effect of other materials that contain in the waste liquid, may form a small amount or a large amount of foam, these foams will volatilize upwards along with the vapor, there is a baffling board 20 in the upper portion of the annular heat exchanger at this moment, let the vapor pass baffling board 20 first, will block the problem that the big foam rises fast like this, can eliminate most foam, there is a foam sensor 33 in the inferior part of baffling board 20 at the same time, can detect the foam through the sensor, when detecting the foam, the medicament inlet control electromagnetic valve 31 of the apparatus will open automatically, the medicament will be inhaled into the retort 26 automatically through the medicament pipeline 32, the medicament inlet control electromagnetic valve 31 closes automatically after the foam is eliminated, a Teflon plate 27 is additionally arranged at the upper part, a plurality of holes for leading in steam are reserved in the middle of the Teflon plate 27, a metal defoaming device 28 is arranged at the upper part of the Teflon plate 27, the defoaming device 28 is tightly combined with the steam holes on the Teflon plate 27, so that rising foam is separated and punctured by the defoaming device 28 one by one, the pure steam which penetrates through the defoaming device is ensured to be pure, the pure steam is discharged by a steam pipeline 18 and carries out heat and cold exchange with the first heat exchanger 4, the steam is continuously cooled to generate condensed water, the condensed water is pumped out by a distilled water pipeline 7 to enter a shell layer of the first heat exchanger 4 and then passes through a pipe layer of a second heat exchanger, and finally enters the condensed water circulating barrel 10 through the distilled water pipeline 17, because the clean distilled water continuously flows into the condensed water circulating barrel 10, when the liquid level of the distilled water outlet at the upper part is reached, due to the action of the distilled water circulating pump 16, a positive pressure is formed in the condensed water circulating barrel 10, so that the distilled water which is continuously evaporated and condensed flows out through the distilled water outlet pipeline 17;
besides, after evaporation reaches certain concentration, at this moment, the waste liquid is not at the continuous feed liquor, the equipment can automatically discharge the vacuum in the 26 inslots of retort, concentrate discharge solenoid valve 21 is opened, concentrate pump 22 starts to take the concentrate out of the outside, self-cleaning water route solenoid valve 23 is opened simultaneously, water pump 19 can automatically start and carry out intermittent type formula self-cleaning with defoaming device 28 that inhales a small amount of clean water in defoaming jar 3 through washing nozzle 24, the washing waste liquid after the washing can be along with the concentrate outside of discharging together, after the concentrate discharges, equipment can automatic recovery to initial condition and automatic start carries out next batch's work.
Only one distillation retort 26, one condensate water circulating barrel 10, two heat exchangers and three pumps are used in the whole low-temperature evaporation system, the efficiency of the whole evaporation system is greatly improved, and the energy consumption of the low-temperature evaporation system is greatly reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A waste water heat pump type low-temperature evaporator comprises a defoaming tank (3), a first heat exchanger (4), a second heat exchanger (30) and a condensed water circulating barrel (10), and is characterized in that a Teflon plate (27) is fixedly connected to the bottom of the defoaming tank (3), a defoaming device (28) is installed at the top of the Teflon plate (27), the defoaming device (28) is located inside the defoaming tank (3), a steam pipeline (18) is fixedly connected to one side of the defoaming tank (3) through a flange plate, the other end of the steam pipeline (18) is connected with the first heat exchanger (4), and a distillation tank (26) communicated with the inside of the defoaming tank (3) is fixedly connected to the bottom of the Teflon plate (27);
baffle plates (20) which are distributed in a staggered manner are fixed in the distillation tank (26) through bolts, a wastewater inlet pipeline (2) and a medicament pipeline (32) are fixed on one side of the distillation tank (26) through flanges respectively, a discharge pipeline is fixed at the bottom of the distillation tank (26) through a flange, and a concentrated solution discharge electromagnetic valve (21) and a concentrated solution pump (22) are installed on the discharge pipeline respectively;
one side and the bottom of the first heat exchanger (4) are fixedly connected with a connecting pipeline and a distilled water pipeline (7) through flange plates respectively, the other end of the connecting pipeline is fixedly connected with the second heat exchanger (30), the other end of the distilled water pipeline (7) is fixedly connected with a distilled water circulating pipeline (12), and the other end of the distilled water circulating pipeline (12) extends into the condensed water circulating barrel (10);
one side of the second heat exchanger (30) is fixedly connected with a refrigerant pipeline (6) and an outlet pipeline (8) of an expansion valve (9) through flange plates respectively, the other end of the refrigerant pipeline (6) is fixedly connected with a refrigerant return pipeline (15), the other end of the refrigerant return pipeline (15) is fixedly connected with a refrigerant outlet pipeline, the other end of the refrigerant outlet pipeline is fixedly provided with a heat exchange pipe (25), the heat exchange pipe (25) is positioned inside a distillation tank (26), the other end of the heat exchange pipe (25) is fixedly connected with the outlet pipeline (8) of the expansion valve (9), and the outlet pipeline (8) of the expansion valve (9) is sequentially provided with the expansion valve (9) and a refrigerant condenser (29);
and two sides of the condensed water circulating barrel (10) are respectively and fixedly connected with a distilled water outlet pipeline (11) and a distilled water inlet pipeline (17) through flange plates, and the other end of the distilled water inlet pipeline (17) is fixedly connected with the bottom of the second heat exchanger (30).
2. A waste water heat pump low temperature evaporator according to claim 1, characterized in that one side of the demister tank (3) is provided with a vacuum outlet valve (5).
3. A waste water heat pump type low temperature evaporator according to claim 1, characterized in that a waste water inlet control solenoid valve (1) and a chemical agent inlet control solenoid valve (31) are installed on the waste water inlet pipeline (2) and the chemical agent pipeline (32), respectively.
4. A waste water heat pump low temperature evaporator according to claim 1, characterized in that the distillation tank (26) is internally provided with a foam sensor (33) and a liquid level sensor (34), respectively.
5. A waste water heat pump type low-temperature evaporator according to claim 1, characterized in that a cleaning pipeline is fixedly connected to one side of the defoaming tank (3), a cleaning nozzle (24) is installed at the end of the cleaning pipeline, the cleaning nozzle (24) is located inside the defoaming tank (3), and a cleaning water pump (19) and a cleaning pipeline electromagnetic valve (23) are sequentially installed on the cleaning pipeline.
6. A waste water heat pump low temperature evaporator according to claim 1, characterized in that a distilled water circulation pump (16) is installed on the distilled water line (7).
7. A waste water heat pump type low temperature evaporator according to claim 1, characterized in that a heat pump compressor (14) is installed on the refrigerant return line (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261632.7U CN213623353U (en) | 2020-10-13 | 2020-10-13 | Waste water heat pump type low-temperature evaporator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022261632.7U CN213623353U (en) | 2020-10-13 | 2020-10-13 | Waste water heat pump type low-temperature evaporator |
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| CN213623353U true CN213623353U (en) | 2021-07-06 |
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| CN202022261632.7U Active CN213623353U (en) | 2020-10-13 | 2020-10-13 | Waste water heat pump type low-temperature evaporator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093836A (en) * | 2020-10-13 | 2020-12-18 | 昆山市博事杰机械科技有限公司 | Waste water heat pump type low-temperature evaporator |
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- 2020-10-13 CN CN202022261632.7U patent/CN213623353U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093836A (en) * | 2020-10-13 | 2020-12-18 | 昆山市博事杰机械科技有限公司 | Waste water heat pump type low-temperature evaporator |
| CN112093836B (en) * | 2020-10-13 | 2024-07-16 | 昆山市博事杰机械科技有限公司 | Waste water heat pump type low-temperature evaporator |
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