CN204910802U - Self -circulation MVR heat pump evaporation system - Google Patents
Self -circulation MVR heat pump evaporation system Download PDFInfo
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- CN204910802U CN204910802U CN201520419116.9U CN201520419116U CN204910802U CN 204910802 U CN204910802 U CN 204910802U CN 201520419116 U CN201520419116 U CN 201520419116U CN 204910802 U CN204910802 U CN 204910802U
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- heat exchanger
- cyclone separator
- cyclone
- pipeline
- roots blower
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Abstract
The utility model relates to a self -circulation MVR heat pump evaporation system, including the pre -heater that preheats stoste, the heat exchanger who is connected with the pre -heater and the cyclone who is connected with heat exchanger, the export of pre -heater connects to the cyclone entry of cyclone lower part through the tube side of pipeline through heat exchanger, cyclone's well upper portion behind the filtering layer by the cyclone gas outlet connect to the import of roots's fan, the export of roots's fan connects to cyclone's top import through the shell side of pipeline through heat exchanger, the leakage fluid dram of heat exchanger shell side connect to the condensate case, the heat exchange line that the leakage fluid dram of condensate case passes through among the preheater discharges. The utility model discloses a roots's fan provides depressurized environment with the inside evacuation of equipment to reduce the stoste boiling point, reduce the energy consumption, utilize the air behind the circulation heating to give stoste heating among the heat exchanger before the concentrated operating mode, abandoned to external world steam and auxiliary electric heater's reliance.
Description
Technical field
The utility model relates to a kind of self-loopa MVR thermo-compression evaporation system, belongs to evaporation and field of energy-saving technology.
Background technology
In recent years, along with the demand of the mankind to the energy is increasing, the contradiction of economic development and shortage of resources is increasingly sharp-pointed, and energy supply becomes bottleneck problem.Meanwhile, greenhouse gas emission causes global warming.In the face of situation like this, energy-conservationly become one of important channel breaking away from energy shortage constraint at present.In addition, along with the Continued of the steam market price in recent years, enterprise operation cost sharply increases.Therefore, plant running cost, the energy-saving and cost-reducing problem being current evaporating and concentrating process and needing to solve is reduced.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of self-loopa MVR thermo-compression evaporation system, utilize system pressure difference to realize self-loopa, apparatus design is exquisite, and volume is little, structure is simple, convenient to operation, and effectively improve the utilization rate of the energy.
In order to solve above technical problem, the utility model provides a kind of self-loopa MVR thermo-compression evaporation system, comprise the preheater of preheating stoste, the heat exchanger be connected with preheater and the cyclone separator be connected with heat exchanger, described preheater is provided with the first valve, described heat exchanger comprises tube side and shell side, the second valve is provided with between heat exchanger and cyclone separator, the outlet of described preheater is connected to the cyclone inlet of cyclone separator bottom through the tube side of heat exchanger by pipeline, the middle and upper part of described cyclone separator is connected to described inlet of Roots blower by cyclone separator gas outlet after filtering layer, the outlet of described roots blower is connected to the top inlet of cyclone separator through the shell side of heat exchanger by pipeline, the leakage fluid dram of described heat exchanger shell side is connected to described condensate liquid case, the leakage fluid dram of described condensate liquid case is discharged by the heat exchanging pipe in pre-heater, wherein, the stoste of nuclear industry waste water is by entering into the import of heat exchanger tube side after preheater preheats, in tube side, stoste enters into cyclone separator by evaporation from tube side outlet, steam in cyclone separator enters into roots blower, thus enter into heat exchanger shell side, form circulation.
The technical scheme that the utility model limits further is: described condensate liquid case is connected with roots blower by pipeline, is provided with sprays the nozzle of condensed water to roots blower at the end of described pipeline; Be provided with pulse damper between the outlet of described roots blower and heat exchanger, pulse damper is communicated with tube side with the shell side of heat exchanger simultaneously.
Further, liquid level gauge is provided with between described cyclone separator and heat exchanger, condensate liquid case is connected with liquid level gauge, liquid level gauge one end is connected with cyclone separator (being communicated with heat exchanger tube side top) by pipeline, the other end is connected with heat exchanger tube side bottom by pipeline, for measuring the liquid level of heat exchanger tube side; Condensate liquid case is connected with liquid level gauge by pipeline simultaneously, clean condensed water in condensate liquid case can be utilized to clean liquid level gauge at cleaning process.
Further, the filter course of described cyclone separator comprises and is provided with the first wire mesh demister, the second wire mesh demister, spiral board and deflector from top to bottom successively.
Further, the top of described condensate liquid case is also connected to the shell-side outlet pipeline of heat exchanger through three ventilation pressure valves, can regulate and control the air pressure of condensate liquid case and assistant regulating and controlling system like this, make it run more stable by this valve.
During work, first heating cycle is entered, stoste to be concentrated enters heat exchanger after pre-heater, air in system is utilized to enter shell heat exchanger journey via after roots blower temperature-pressure, heat exchanger tube side stoste is heated, air after heat exchange enters roots blower circulating-heating after arriving cyclone separator top by the road, and when heat exchanger tube side stoste temperature reaches evaporating temperature, system enters evaporation operating mode.Evaporation operating mode, stoste to be concentrated enters heat exchanger after pre-heater preheating, the heat vaporized cyclone separator that enters of vaporized composition wherein realizes gas-liquid separation, gas componant enters roots blower after filtration, after compression, after over-heat-exchanger shell side is heated to tube side stoste, condensation enters condensate liquid case, continuous circulation, liquid is Returning heat-exchanger tube side then.The heat pump circulating system of such formation not only can realize the concentrated of infusion fluid by heat exchange circulation, and heat exchanger can realize back liquid by gravity higher than condensate liquid case, and roots blower outlet to be communicated with after the pressure-fired made it have can make its exudate automatically flow through pre-heater preheating stoste with condensate liquid case through heat exchanger shell side and to discharge, not only effectively make use of the heat contained by exudate, and without the need to separately adding transfusion power, therefore the utility model is made to have Appropriate application pressure reduction and gravitational difference realization evaporation, the self-loopa of separation process, energy consumption is low, the remarkable advantage that efficiency is high.Meanwhile, because the shell side of heat exchanger is connected to the top inlet of cyclone separator during heating cycle, then be connected to roots blower by its gas outlet, therefore make pressure oscillation during system works little, heat pump stable circulation.
The beneficial effects of the utility model are: device interior is vacuumized by roots blower by this system, provides subnormal ambient, to reduce stoste boiling point, reduce energy consumption; The Flow of Goods and Materials of this system all adopts system pressure difference to carry out self-loopa, without the need to arranging the external impetus such as pump in systems in which, enormously simplify flow process, and is convenient to control realization; Utilize the air after circulating-heating to stoste heating in heat exchanger before concentrated operating mode, abandoned the dependence of steam and electrical auxiliary heater to external world, while economize energy, also simplify structure; Controlled the terminal of concentrated operating mode by adjustable liquid level gauge, without the need to sample analysis repeatedly, handled easily, control accurately; Cyclone separator of the present utility model adopts level Four to be separated, and improves separative efficiency, reduce further separator outlet steam containing drop amount, improves decontamination factor, reach eco-friendly object.In addition, the Technique of Heat Pump Evaporation of employing of the present utility model, owing to not needing extra steam, can reduce product cost, increase economic efficiency, therefore in evaporation, the field extensive application such as concentrated.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of embodiment of the present utility model;
Fig. 2 is the structural representation of roots blower moisturizing in Fig. 1;
Fig. 3 is the structural representation of cyclone separator in Fig. 1.
Detailed description of the invention
Embodiment 1
A kind of self-loopa MVR thermo-compression evaporation system that the present embodiment provides, as shown in Figure 1 to Figure 3, comprise the preheater 12 of preheating stoste, the heat exchanger 6 be connected with preheater 12 and the cyclone separator 1 be connected with heat exchanger 6, described preheater 12 is provided with the first valve 5, first valve 5 is the first pneumatic ball valve, described heat exchanger 6 comprises tube side and shell side, the second valve is provided with between heat exchanger 6 and cyclone separator 1, second valve is Pneumatic butterfly valve 2 and Hand-operated butterfly valve 3, the outlet of described preheater 12 is connected to cyclone separator 1 entrance of cyclone separator 1 bottom through the tube side of heat exchanger 6 by pipeline, the middle and upper part of described cyclone separator 1 is connected to the import of described roots blower 10 by cyclone separator 1 gas outlet after filtering layer, described roots blower 10 exports the top inlet being connected to cyclone separator 1 by pipeline through the shell side of heat exchanger 6, the leakage fluid dram of described heat exchanger 6 shell side is connected to described condensate liquid case 11, the leakage fluid dram of described condensate liquid case 11 is discharged by the heat exchanging pipe in pre-heater 12, preheating is carried out to the stoste in preheater.The outlet of roots blower 10 is connected respectively by the shell side import of the first pipeline and second pipe and heat exchanger 6 and tube side import, second pipe is provided with the 3rd valve 7,3rd valve 7 is the second pneumatic ball valve, and the condensed water in heat exchanger 6 passes through the 3rd pipelined storage in condensate liquid case 11.
In the utility model, described condensate liquid case 11 is connected with roots blower 10 by pipeline, be provided with at the end of described pipeline and spray the nozzle 13 of condensed water to roots blower 10, second outlet is connected with the 5th pipeline, 5th pipeline is through preheater 12, heat exchange is carried out by the stoste in the 5th pipeline and preheater 12, thus the temperature of heating stoste; Be provided with pulse damper 9 between the outlet of described roots blower 10 and heat exchanger 6, pulse damper 9 is communicated with second pipe with the first pipeline simultaneously, and the effect of pulse damper 9 is buffering roots blower 10 outlet vapor, makes it flow and tends to be steady.Liquid level gauge 8 is provided with between cyclone separator 1 and heat exchanger 6, liquid level gauge 8 comprises high liquid level and low liquid level, high liquid level and low liquid level can be regulated by needs, condensate liquid case 11 is connected with liquid level gauge 8, liquid level gauge 8 one end is connected with cyclone separator 1 (being communicated with heat exchanger tube side top) by pipeline, the other end is connected with heat exchanger 6 tube side bottom by pipeline, for measuring the liquid level of heat exchanger 6 tube side; Condensate liquid case 11 is connected with liquid level gauge 8 by pipeline simultaneously, clean condensed water in condensate liquid case 11 can be utilized to clean liquid level gauge at cleaning process.Cyclone separator 1 comprises housing, the first wire mesh demister 14, second wire mesh demister 15, spiral board 16 and deflector 17 is provided with from top to bottom successively in housing, cyclone separator 1 exports and is connected with roots blower 10 import, and steam forms indirect steam and provides heat for system is concentrated after roots blower 10 heats up pressurization.
In the utility model, the import of roots blower 10 is negative pressure, and heat exchanger 6 tube side is negative pressure, to reduce the boiling point of stoste, reduces energy consumption.When system starts, start roots blower 10, whole system is vacuumized, stoste is sucked heat exchanger 6 tube side via preheater 12 shell side, stoste evaporation gained indirect steam, through the compression of roots blower 10, makes roots blower 10 export, the first pipeline, second pipe, heat exchanger 6 shell side, condensate liquid case 11 and preheater 12 tube side is malleation.Like this, the discharge of the feed liquor of stoste, roots blower 10 moisturizing, condensed water can be realized by differential pressure action, and without the need to the power of extraneous pump.
In the utility model, stoste is after preheater 12 shell side enters the condensate liquid preheating of preheater 12 tube side by the 5th pipeline, enter in the tube side of heat exchanger 6, stoste is the heating of hot-air in shell side in tube side, form steam, the steam of heat exchanger 6 tube side outlet enters into cyclone separator 1, cyclone separator 1 pair of indirect steam adopts import cyclonic separation, middle part spiral board 16 is separated, the level Four that the two-layer silk screen in top catches is separated, improve decontamination factor, the tube side of heat exchanger 6 is entered into through the isolated water backflow of cyclone separator 1, and steam enters into roots blower temperature-pressure by cyclone separator 1 outlet at top, enter heat exchanger 6 shell side, with produce condensed water after the heat exchange of heat exchanger 6 tube side stoste and enter into condensate liquid case 11, a condensate liquid part in condensate liquid case 11 carries out moisturizing to roots blower 10, another part flows to preheater 12 tube side and carries out preheating to stoste in shell side.Heat exchanger 6 is in communication with the outside by the 6th pipeline, and the 6th pipeline is provided with valve.
According to the using method of above-mentioned self-loopa MVR thermo-compression evaporation system, comprise the following steps:
(1) start roots blower 10, whole system is vacuumized, opens the first valve 5, charging in preheater 12, when the liquid level in heat exchanger 6 arrives appointment liquid level, close the first valve 5, stop feed liquor;
(2) roots blower 10 continues to run, open Pneumatic butterfly valve 2 and the 3rd valve 7, regulate the rotating speed of roots blower 10, the aperture of Hand-operated butterfly valve 3 is regulated to make the pressure before and after roots blower 10 reach designated value, the circulating air in system is utilized to heat to the stoste in heat exchanger 6 tube side, in circulating-heating process, the temperature of stoste raises gradually, and the temperature of circulating air, also in rising, proceeds to normal concentrated operating mode when stoste temperature reaches boiling point;
(3) concentrated operating mode roots blower 10 continues to run, close Pneumatic butterfly valve 2 and the 3rd valve 7, the steam that heat exchanger 6 tube side is evaporated enters roots blower 10 temperature-pressure after cyclone separator 1 is separated, and enters heat exchanger 6 shell side and continues heating to tube side stoste;
(4) when liquid level gauge 8 detects low liquid level signal in heat exchanger, control the first valve 5 and open, carry out fluid infusion, repeat step (3);
(5) after the low liquid level signal of liquid level gauge 8 sends certain number of times, the first valve 5 is no longer opened, and system proceeds to shutdown discharge mode.
(6) be provided with automatic froth breaking flow process and automatic cleaning process in the present embodiment simultaneously.To solve froth breaking and cleaning problem.
Above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and implement according to this; protection domain of the present utility model can not be limited with this; those skilled in the art are under the enlightenment of the utility model technical spirit; also may make other to change; all employing equivalents or equivalent transformation and all technical schemes formed, all drop within protection domain of the present utility model.
Claims (5)
1. a self-loopa MVR thermo-compression evaporation system, comprise the preheater of preheating stoste, the heat exchanger be connected with preheater and the cyclone separator be connected with heat exchanger, described heat exchanger comprises tube side and shell side, it is characterized in that: the outlet of described preheater is connected to the cyclone inlet of cyclone separator bottom through the tube side of heat exchanger by pipeline, the middle and upper part of described cyclone separator is connected to inlet of Roots blower by cyclone separator gas outlet after filtering layer, the outlet of described roots blower is connected to the top inlet of cyclone separator through the shell side of heat exchanger by pipeline, the leakage fluid dram of described heat exchanger shell side is connected to condensate liquid case, the leakage fluid dram of described condensate liquid case is discharged by the heat exchanging pipe in preheater.
2. self-loopa MVR thermo-compression evaporation system according to claim 1, is characterized in that: described condensate liquid case is connected with roots blower by pipeline, is provided with sprays the nozzle of condensed water to roots blower at the end of described pipeline.
3. self-loopa MVR thermo-compression evaporation system according to claim 1, is characterized in that: be provided with pulse damper between the outlet of described roots blower and heat exchanger, and pulse damper is communicated with tube side with the shell side of heat exchanger simultaneously.
4. self-loopa MVR thermo-compression evaporation system according to claim 1, is characterized in that: be provided with liquid level gauge between described cyclone separator and heat exchanger.
5. self-loopa MVR thermo-compression evaporation system according to claim 1, is characterized in that: the filter course of described cyclone separator comprises and is provided with the first wire mesh demister, the second wire mesh demister, spiral board and deflector from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419116.9U CN204910802U (en) | 2015-06-17 | 2015-06-17 | Self -circulation MVR heat pump evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419116.9U CN204910802U (en) | 2015-06-17 | 2015-06-17 | Self -circulation MVR heat pump evaporation system |
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| Publication Number | Publication Date |
|---|---|
| CN204910802U true CN204910802U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520419116.9U Withdrawn - After Issue CN204910802U (en) | 2015-06-17 | 2015-06-17 | Self -circulation MVR heat pump evaporation system |
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| Country | Link |
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| CN (1) | CN204910802U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922921A (en) * | 2015-06-17 | 2015-09-23 | 上海核工程研究设计院 | Self-circulation MVR heat pump evaporation system |
| CN110648775A (en) * | 2019-10-31 | 2020-01-03 | 湖南汉华京电清洁能源科技有限公司 | Nuclear power station radioactive waste liquid MVR evaporation system and operation method thereof |
-
2015
- 2015-06-17 CN CN201520419116.9U patent/CN204910802U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922921A (en) * | 2015-06-17 | 2015-09-23 | 上海核工程研究设计院 | Self-circulation MVR heat pump evaporation system |
| CN110648775A (en) * | 2019-10-31 | 2020-01-03 | 湖南汉华京电清洁能源科技有限公司 | Nuclear power station radioactive waste liquid MVR evaporation system and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170531 |