CN205516543U - Stifled system is prevented in MVR forced circulation evaporator's ejection of compact - Google Patents
Stifled system is prevented in MVR forced circulation evaporator's ejection of compact Download PDFInfo
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- CN205516543U CN205516543U CN201620222563.XU CN201620222563U CN205516543U CN 205516543 U CN205516543 U CN 205516543U CN 201620222563 U CN201620222563 U CN 201620222563U CN 205516543 U CN205516543 U CN 205516543U
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Abstract
The utility model relates to a stifled system is prevented in MVR forced circulation evaporator's ejection of compact. The problem of MVR forced circulation evaporator at ejection of compact in -process pipe blockage has mainly been solved. The characteristic of evaporimeter is: be equipped with raw materials valve and unloading valve before the discharging pump entry, this raw materials valve carries out the pipeline with the unloading valve and connects in parallel, ejection of compact governing valve is equipped with in the discharging pump exit, raw materials valve, unloading valve and ejection of compact governing valve are the motorised valve, constitute an automatic control system jointly with the discharging pump, among this automatic control system, working as the discharging pump and stopping, then the unloading valve cuts out with ejection of compact governing valve, and the raw materials valve is opened immediately, a plurality of seconds backs are opened to this raw materials valve, and ejection of compact governing valve is opened, a plurality of seconds backs are opened to this ejection of compact governing valve, close simultaneously with the raw materials valve, and the magma material of back flow and discharging pipe is displaced by the raw materials. Make the system when parkking, commodity circulation concentration maintains lower state in the pipeline, avoids the pipeline to produce the crystallization and causes the jam to the continuity of system's ejection of compact has been increased substantially.
Description
Technical field
This utility model relates to vapo(u)rization system, particularly relates to the discharging anti-blocking system of a kind of MVR forced-circulation evaporator.
Background technology
Vapo(u)rization system is widely used in all trades and professions.At present, China's vapo(u)rization system extensively is multi-effect evaporator, the progressively appearance of policy is reduced discharging yet with national energy-saving, multi-effect evaporator with Boiler Steam as thermal source can not meet environmental requirement instantly day by day, therefore, many units, enterprise start the power-saving technology of Introduced From Abroad to solve tradition vapo(u)rization system energy consumption problem high, heavy-polluted.
MVR(Mechanical Vapor Recompression function of mechanical steam recompression) technology is the new technique of energy-saving and emission-reduction, its advantage is to need not the complicated or equipment of high energy consumption and the material such as steam boiler, softening water, water softening system, fuel oil, fire coal, and its power source is the electric energy of cleaning.The indirect steam that system is produced by MVR system by vapour compression machine recompresses, and reclaims heat content, and operation energy consumption is only 30 to the 40% of multi-effect evaporator, and energy-saving effect is notable.
More prevalent along with MVR system, also brings the problem on many use simultaneously.At present, domestic MVR technical merit is uneven, the technical immature introducing allowing energy consumption rich and influential family shelve MVR technology indefinitely, how to ensure 24 hours continuous and steady operations of system, has been the key issue that will face of each MVR technology manufacturer.
In existing MVR system, the most widely used for MVR forced-circulation evaporator, but in actual use, owing to material concentration is higher, during continuous crystallisation discharging, easily produce pipe plugging by crystallization phenomenon, within 24 hours that directly affect system, run continuously, and user also tends to need to spend substantial amounts of manpower and materials to process blockage problem, production efficiency is forced to decline.Therefore, how to solve MVR forced-circulation evaporation crystal system problem of line clogging during discharging, concern popularization and the development of MVR Energy Saving Industry.
Summary of the invention
For the problem for above-mentioned background technology, this utility model provides the discharging anti-blocking system of a kind of MVR forced-circulation evaporator, mainly solve MVR forced-circulation evaporator during discharging, the line clogging problem caused due to factors such as magma material concentration are high, valve retains.
This utility model solves its technical problem and be the technical scheme is that the discharging anti-blocking system of a kind of MVR forced-circulation evaporator, including vapour compression machine, forced circulation pump, forced circulation heat exchanger and crystal separator, pipe material is picked out on circulating line bottom described crystal separator, this discharge pipe is provided with discharging pump, equipped with feed valve and feed conduit before discharging pump entrance；Being also equipped with baiting valve before described discharging pump entrance, it is in parallel that this baiting valve carries out pipeline with feed valve；Described discharging pump exit is equipped with discharging regulation valve to regulate discharging, and a part of material of outlet is back to crystal separator by reflux line；Described feed valve, baiting valve and discharging regulation valve are electrodynamic valve；Described feed valve, baiting valve, discharging regulation valve collectively constitute an automatic control system with described discharging pump；In this automatic control system, when discharging pump quits work, then baiting valve is closed with discharging regulation valve, and feed valve is opened immediately, and raw material enters discharging pump inlet duct and reflux line, the magma material in displacement pipeline；After described feed valve opens some seconds, discharging regulation valve retinue open, and raw material enters discharging pump outlet conduit, the magma material in displacement pipeline；After some seconds opened by described discharging regulation valve, simultaneously closing off with feed valve, the magma material in discharge pipe and reflux line is replaced by raw material.
It is expanded on further as to technique scheme.
In technique scheme, described feed conduit is installed between the pipeline that blowoff valve is connected with baiting valve；Feed valve on described feed conduit is close to discharging pump inlet tube and is installed.
In technique scheme, described baiting valve is close to circulating line and is installed.
In technique scheme, described reflux line be positioned at crystal separator normal level of liquid with the mouth of pipe that crystal separator is connected above 0.5m.
In technique scheme, described feed valve opens some seconds, and the concrete time is the used time that raw material is full of discharging pump inlet tube and reflux line；Some seconds opened by described discharging regulation valve, and the concrete time is the used time that raw material is full of discharging pump outlet conduit.
The beneficial effects of the utility model are: raw material enters discharge pipe and reflux line, magma material in displacement pipeline, when making system be in dead ship condition, material concentration in discharge pipe maintains relatively low level, pipeline is avoided to produce crystallization and result in blockage, thus the seriality of system discharging is greatly improved, reduce manipulation strength, solve MVR forced-circulation evaporation crystal system problem of line clogging during discharging.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present utility model.
In figure: 1. vapour compression machine, 2. forced circulation pump, 3. forced circulation heat exchanger, 4. crystal separator, 5. blowoff valve, 6. feed valve, 7. baiting valve, 8. discharging pump, 9. reflux inlet, 10. discharging regulation valve.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described, but this utility model is not limited to following example.
As shown in Figure 1, a kind of discharging anti-blocking system of MVR forced-circulation evaporator, including vapour compression machine 1, forced circulation pump 2, forced circulation heat exchanger 3 and crystal separator 4, pipe material is picked out on circulating line bottom described crystal separator 4, this discharge pipe is provided with discharging pump 8, equipped with feed valve 6 and feed conduit before discharging pump 8 entrance；Being also equipped with baiting valve 7 before described discharging pump 8 entrance, it is in parallel that this baiting valve 7 carries out pipeline with feed valve 6；Described discharging pump 8 exit is equipped with discharging regulation valve 10 to regulate discharging, and a part of material of outlet is back to crystal separator 4 by reflux line；Reflux inlet 9 is normally open valve, and blowoff valve 5 is normally close valve.
Described feed valve 6, baiting valve 7 and discharging regulation valve 10 are electrodynamic valve；This feed valve 6, baiting valve 7, discharging regulation valve 10 collectively constitute an automatic control system with described discharging pump 8.
In described automatic control system, when MVR forced-circulation evaporator carries out discharging, discharging pump 8 normally works, and baiting valve 7 is in opening with discharging regulation valve 10, and feed valve 6 is closed；Magma material enters next operating system by baiting valve 7 with discharging regulation valve 10 in the effect next part of discharging pump 8, and another part is back to crystal separator 4 by reflux inlet 9；When MVR forced-circulation evaporator stops, discharging pump 8 is out of service, and baiting valve 7 is closed immediately with discharging regulation valve 10, and feed valve 6 is opened immediately；Raw material successively by discharging pump inlet duct and reflux line, enters inside it from the sidepiece of crystal separator 4, has replaced the magma material in pipeline；After described feed valve 6 opens 15 seconds, raw material is full of discharging pump inlet duct and reflux line, and discharging regulation valve 10 is opened immediately；Raw material discharges system by discharging pump outlet conduit, has replaced the magma material in pipeline；After described discharging regulation valve 10 opens 10 seconds, raw material is full of discharging pump outlet conduit, and discharging regulation valve 10 simultaneously closes off with feed valve 6, and the magma material in discharge pipe and reflux line is replaced by raw material.
So, crystallization discharging pipeline being greatly lowered due to crystal concentration, it is to avoid the problem of pipeline blockage, thus solve the passive parking problem of system that user in use causes because of pipeline blockage, significantly retrieve because of the economic loss caused of passively stopping.
Below not imposing any restrictions technology of the present utility model or range, all any amendment, equivalent variations and modifications made above example according to technical spirit of the present utility model, in the range of all still falling within the technical solution of the utility model.
Claims (5)
1. the discharging anti-blocking system of a MVR forced-circulation evaporator, including vapour compression machine (1), forced circulation pump (2), forced circulation heat exchanger (3) and crystal separator (4), it is characterized in that: on the circulating line of described crystal separator (4) bottom, pick out pipe material, this discharge pipe is provided with discharging pump (8), equipped with feed valve (6) and feed conduit before discharging pump (8) entrance；Being also equipped with baiting valve (7) before described discharging pump (8) entrance, it is in parallel that this baiting valve (7) carries out pipeline with feed valve (6)；Described discharging pump (8) exit regulates valve (10) to regulate discharging equipped with discharging, and a part of material of outlet is back to crystal separator (4) by reflux line；Described feed valve (6), baiting valve (7) and discharging regulation valve (10) are electrodynamic valve；Described feed valve (6), baiting valve (7), discharging regulation valve (10) collectively constitute an automatic control system with described discharging pump (8)；In this automatic control system, when discharging pump (8) quits work, then baiting valve (7) is closed with discharging regulation valve (10), and feed valve (6) is opened immediately, and raw material enters discharging pump inlet duct and reflux line, the magma material in displacement pipeline；After described feed valve (6) opens some seconds, discharging regulation valve (10) retinue open, and raw material enters discharging pump outlet conduit, the magma material in displacement pipeline；After some seconds are opened in described discharging regulation valve (10), simultaneously closing off with feed valve (6), the magma material in discharge pipe and reflux line is replaced by raw material.
The discharging anti-blocking system of a kind of MVR forced-circulation evaporator the most according to claim 1, is characterized in that: described feed conduit is installed between the pipeline that blowoff valve (5) is connected with baiting valve (7)；Feed valve (6) on described feed conduit is close to discharging pump (8) inlet tube and is installed.
The discharging anti-blocking system of a kind of MVR forced-circulation evaporator the most according to claim 1, is characterized in that: described baiting valve (7) is close to circulating line and is installed.
The discharging anti-blocking system of a kind of MVR forced-circulation evaporator the most according to claim 1, is characterized in that: described reflux line be positioned at crystal separator (4) normal level of liquid with the mouth of pipe that crystal separator (4) is connected above 0.5m.
The discharging anti-blocking system of a kind of MVR forced-circulation evaporator the most according to claim 1, is characterized in that: described feed valve (6) is opened some seconds, and the concrete time is that raw material is full of the time-consuming of discharging pump inlet duct and reflux line；Described discharging regulation valve (10) is opened some seconds, and the concrete time is that raw material is full of the time-consuming of discharging pump outlet conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222563.XU CN205516543U (en) | 2016-03-22 | 2016-03-22 | Stifled system is prevented in MVR forced circulation evaporator's ejection of compact |
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| CN201620222563.XU CN205516543U (en) | 2016-03-22 | 2016-03-22 | Stifled system is prevented in MVR forced circulation evaporator's ejection of compact |
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| CN205516543U true CN205516543U (en) | 2016-08-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213658A (en) * | 2016-03-22 | 2017-09-29 | 广州市心德实业有限公司 | A kind of discharging anti-blocking system of MVR forced-circulation evaporators |
| CN107648873A (en) * | 2017-05-09 | 2018-02-02 | 深圳市宝安东江环保技术有限公司 | Discharging EGR and discharging round-robin method for evaporator system |
| CN111408153A (en) * | 2020-05-15 | 2020-07-14 | 湖北晟驰蒸发器设备有限公司 | Blockage removing device for evaporator equipment pipeline |
-
2016
- 2016-03-22 CN CN201620222563.XU patent/CN205516543U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213658A (en) * | 2016-03-22 | 2017-09-29 | 广州市心德实业有限公司 | A kind of discharging anti-blocking system of MVR forced-circulation evaporators |
| CN107648873A (en) * | 2017-05-09 | 2018-02-02 | 深圳市宝安东江环保技术有限公司 | Discharging EGR and discharging round-robin method for evaporator system |
| CN111408153A (en) * | 2020-05-15 | 2020-07-14 | 湖北晟驰蒸发器设备有限公司 | Blockage removing device for evaporator equipment pipeline |
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