CN203507786U - Multifunctional combined type low dew point gas drying device - Google Patents
Multifunctional combined type low dew point gas drying device Download PDFInfo
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- CN203507786U CN203507786U CN201320575604.XU CN201320575604U CN203507786U CN 203507786 U CN203507786 U CN 203507786U CN 201320575604 U CN201320575604 U CN 201320575604U CN 203507786 U CN203507786 U CN 203507786U
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Abstract
The utility model relates to a multifunctional combined type low dew point gas drying device, belonging to the technical field of drying devices. The multifunctional combined type low dew point gas drying device comprises a freezing type drying system and a micro-heat regenerative adsorption type drying system, wherein the freezing type drying system comprises an efficient precooler, an evaporator connected with the efficient precooler, a refrigerating system connected with the evaporator and a gas-water separator connected with the evaporator; one path of the gas-water separator is connected with the efficient precooler and the other path is connected with the micro-heat regenerative adsorption type drying system; the micro-heat regenerative adsorption type drying system comprises a pressure swing adsorption cylinder A, a pressure swing adsorption cylinder B, a heater R and a silencer S; one path of an outlet of the pressure swing adsorption cylinder A is connected with the efficient precooler and the other path is connected with a finished gas outlet of the pressure swing adsorption cylinder B by the heater R; and a bottom inlet of the pressure swing adsorption cylinder B is connected with the silencer S. By utilizing the multifunctional combined type low dew point gas drying device, devices can be operated selectively according to different user working conditions to meet the requirements of users on dew point of purified compressed air, thereby saving gas sources and reducing energy consumption and equipment operation investment cost.
Description
Technical field
The utility model belongs to drying device technical field, is specifically related to a kind of multifunction combined low dew point gas drier.
Background technology
At present, conventional gas drier is freezing type drier and micro-heat regeneration absorbent drying machine, and the gas that needs processing to obtain different dew points need to be selected different drying machines.Cause like this process complexity loaded down with trivial details, according to the difference of product, need on different drying machines, process, also to user, increased processing cost simultaneously.
Utility model content
The problem existing for prior art, the purpose of this utility model is that design provides a kind of technical scheme of multifunction combined low dew point gas drier.
Described a kind of multifunction combined low dew point gas drier, it is characterized in that comprising freezing type drying system and micro-heat regeneration absorbent drying system, described freezing type drying system comprises efficient forecooler, the evaporimeter being connected with efficient forecooler, the refrigeration system being connected with evaporimeter, the moisture trap being connected with evaporimeter, described moisture trap one tunnel connects efficient forecooler, another road connects micro-heat regeneration absorbent drying system, described micro-heat regeneration absorbent drying system comprises pressure-variable adsorption cylinder A, pressure-variable adsorption cylinder B, heater R and silencer S, described pressure-variable adsorption cylinder A exports a road and is connected with efficient forecooler, the heater R of separately leading up to is connected with the outlet of pressure-variable adsorption cylinder B finished product gas, described pressure-variable adsorption cylinder B bottom inlet is connected with silencer S.
Described a kind of multifunction combined low dew point gas drier, it is characterized in that described refrigeration system comprise with evaporimeter in the loop-coupled gas-liquid separator of refrigerant pipe, cold medium compressor, oil water separator, air-cooled condenser, device for drying and filtering and heating power expansion valve.
Described a kind of multifunction combined low dew point gas drier, is characterized in that described moisture trap and on it, is connected successively ball valve, electronic drain valve formation drainage.
Described a kind of multifunction combined low dew point gas drier, it is characterized in that between refrigerant pipe import, being parallel with hot gas bypass valve in described oil water separator and evaporimeter, in described oil water separator and evaporimeter, between refrigerant pipe outlet, be parallel with high and low voltage switch, between described device for drying and filtering and heating power expansion valve, be provided with visor.
Above-mentioned a kind of multifunction combined low dew point gas drier, compact conformation, reasonable in design, can, according to the operating mode of curstomer's site, realize the multifunctional drying apparatus method of operation and select for user:
1) freezing type drying system and micro-heat regeneration absorbent drying system are combined;
2), when heater is not devoted oneself to work according to operating mode, freezing type drying system and heatless regeneration absorbed type drying system can be combined;
3) isolated operation freezing type drying system;
4) isolated operation heatless regeneration absorbed type drying system;
5) isolated operation micro-heat regeneration absorbent drying system;
In addition, during use, efficient forecooler (dewatering by the heat exchange of the turnover implication large area) heat-transfer surface that humid air enters freezing type drying system is larger, can remove the moisture content of total moisture content 73% left and right in compressed air, evaporimeter (coolant refrigeration) can be removed the moisture content of total moisture content 19% left and right in compressed air, enter moisture trap the aqueous water bringing from freezing type drying system, fluid oil is removed, improved the service life of adsorbent in micro-heat regeneration absorbent drying system, service efficiency, thereby reach energy-conservation object, and then enter micro-heat regeneration absorbent drying system, the moisture content that only need remove total moisture content 8% left and right in compressed air just can reach the compressed-air actuated object of depth drying, improved drying efficiency, reduced drying cost.
In sum, the utlity model has following beneficial effect:
1, the utility model is the low dew point drying equipment that freezing type drying system and two one of micro-heat regeneration absorbent drying system organically combine;
2, the utility model is the low dew point drying equipment that freezing type drying system and two one of heatless regeneration absorbed type drying system organically combine;
3, the utility model also can be realized separately the operation of freezing type drying system;
4, the utility model also can be realized separately the operation of heatless regeneration absorbed type drying system;
5, the utility model also can be realized separately the operation of micro-heat regeneration absorbent drying system;
6, the utility model can make compressed air drying to dew points at normal pressure≤-70 ℃ (intake air temperature≤45 ℃), and degree of drying greatly improves;
7, the utility model is cooling with air cooling way, is specially adapted to the working environment that water resource lacks;
8, the utility model compact conformation rationally, easy operating, operate steadily, save the advantages such as the energy, expense are low, easy for installation;
9, the utility model can be realized according to the difference of user's operating mode, and selective operation equipment, to reach the requirement of user to purification of compressed air dew point, is saved source of the gas, energy consumption, equipment operation cost of investment; The service life of raising equipment, equipment operating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-cold medium compressor; 2-hot gas bypass valve; The air-cooled condenser of 3-; 4-device for drying and filtering; 5-visor; 6-heating power expansion valve; 7-high and low voltage switch; 8-gas-liquid separator; 9-evaporimeter; The efficient forecooler of 10-; 11-moisture trap; 12-ball valve; 13-electronic drainage device; 14-oil water separator; 15-controller; QV1-QV11 pneumatic operated valve; S-muffler; DV1-DV2 high-temperature ball valve; ZV1-ZV4-check valve; A, B-pressure-variable adsorption cylinder; R-heater.
The specific embodiment
Below in conjunction with Figure of description, further illustrate the utility model.
As shown in Figure 1, a kind of multifunction combined low dew point gas drier comprises freezing type drying system and micro-heat regeneration absorbent drying system.
Freezing type drying system comprises efficient forecooler 10, the evaporimeter 9 being connected with efficient forecooler 10, the refrigeration system being connected with evaporimeter 9, the moisture trap 11 being connected with evaporimeter 9, moisture trap 11Yi road connects efficient forecooler 10, this road is provided with pneumatic operated valve QV6, another road connects micro-heat regeneration absorbent drying system, and this road is provided with pneumatic operated valve QV7.The humid air entrance of efficient forecooler 10 is provided with pneumatic operated valve QV2, and the dry air outlet of efficient forecooler 10 is provided with pneumatic operated valve QV1.Refrigeration system comprise with evaporimeter 9 in the loop-coupled gas-liquid separator 8 of refrigerant pipe, cold medium compressor 1, oil water separator 14, air-cooled condenser 3, device for drying and filtering 4 and heating power expansion valve 6, wherein in oil water separator 14 and evaporimeter 9, between refrigerant pipe import, be parallel with hot gas bypass valve 2, in oil water separator 14 and evaporimeter 9, between refrigerant pipe outlet, be parallel with high and low voltage switch 7, between device for drying and filtering 4 and heating power expansion valve 6, be provided with visor 5.The effect of visor 5 is: observe the state of cold-producing medium etc., facilitate plant maintenance personnel detection, debugging, maintenance cooling system; The effect of heating power expansion valve 6 is: when freezing type drying system load increases, the refrigerant temperature in evaporimeter 9 raises, and the signal transmission by heating power expansion valve 6 sensors regulates heating power expansion valve 6 automatically, until reach new balance; When cooling driers is loaded too small, when evaporating temperature declines, thermal expansion 6 turns down valve automatically, hot gas bypass valve 6 automatically provides a load to evaporimeter 9 simultaneously, to keep the stable of evaporating temperature, the stifled phenomenon of device 9 ice that avoid evaporating occurs, and guarantees the inspiratory capacity of cold medium compressor 1, and freezing type drying system can normally be worked.The effect of high and low voltage switch 7 is occur to leak or condenser system is dispelled the heat when bad when refrigeration system, to protect the unlikely damage of cold medium compressor 1.Moisture trap 11 with on it, be connected successively ball valve 12, electronic drain valve 13 and form drainages and carry out blowdown.
Micro-heat regeneration absorbent drying system comprises pressure-variable adsorption cylinder A, pressure-variable adsorption cylinder B, heater R and silencer S.2 groups of valves in parallel between pressure-variable adsorption cylinder A outlet and the outlet of pressure-variable adsorption cylinder B finished product gas, one group is check valve ZV1 and the check valve ZV2 of series connection, another group is high-temperature ball valve DV1; 2 groups of valves in parallel between the A import of pressure-variable adsorption cylinder and pressure-variable adsorption cylinder B bottom inlet, one group is pneumatic operated valve QV8 and the pneumatic operated valve QV9 of series connection, another group is pneumatic operated valve QV10 and the pneumatic operated valve QV11 of series connection.Pipeline between pneumatic operated valve QV8 and pneumatic operated valve QV9 communicates with moisture trap 11 by pneumatic operated valve QV7 respectively, by pneumatic operated valve QV3, communicates with humid air entrance.Pipeline between pneumatic operated valve QV10 and pneumatic operated valve QV11 communicates with silencer S.Pipeline between check valve ZV1 and check valve ZV2 communicates with dry air outlet by pneumatic operated valve QV5, by pneumatic operated valve QV4, communicates with efficient forecooler 10, by high-temperature ball valve DV2, communicates with heater R.Heater R communicates with pressure-variable adsorption cylinder A by check valve ZV3, by check valve ZV4, communicates with pressure-variable adsorption cylinder B.
For the ease of controlling each pneumatic operated valve, this device is also provided with controller 15.
The effect of controller 15 is: from finished product gas outlet conduit, introduce the compressed air of clean dried through pressure-reduced and-regulated measure, importing magnetic valve group control module, by Intelligent PLC Controller, realize the open/close state of regular control operated pneumatic valve, in order to realize and improve multifunction combined low dew point gas drier, provide crucial effect.
Workflow of the present utility model is as follows:
1) finished product gas dew points at normal pressure reach≤-23 ℃, freezing type drier is devoted oneself to work.
Gas to be processed enters from humid air entrance, the shell that enters efficient forecooler 10 by the pneumatic operated valve QV2 remove portion moisture of tentatively lowering the temperature, enter again evaporimeter 9, in evaporimeter 9, carry out heat exchange with refrigeration system, then through moisture trap 11, pneumatic operated valve QV6, enter the pipe layer of efficient forecooler 10, finally by the finished product gas of crossing pneumatic operated valve QV1 and discharge dew points at normal pressure≤-23 ℃.
The workflow of refrigeration system is as follows: low temperature liquid cold-producing medium flows to (through tube side) evaporimeter 9, through flashing to gaseous state, the cold-producing medium of gaseous state enters gas-liquid separator 8 from evaporimeter 9 outlets, after being gasified totally, micro-liquid refrigerant enters cold medium compressor 1 air entry within it, cold medium compressor 1 is compressed into the gaseous refrigerant of low-temp low-pressure the gas of HTHP, by the autoregulation of hot gas bypass valve 2, have fraction gas directly to enter evaporimeter 9, most of gas enters air-cooled condenser 3 condensations cooling.From air-cooled condenser 3 high pressure low temperature liquid refrigerant out, by device for drying and filtering 4 and visor 5, enter heating power expansion valve 6 by reducing pressure by regulating flow, become low pressure liquid and enter (through tube side) evaporimeter 9, the cooling compressed air that enters (through shell side) this evaporimeter 9.The effect of device for drying and filtering 4 is micro-moisture and pollutants of removing in cold-producing medium.The effect of visor 5 is: observe the state of cold-producing medium etc., facilitate plant maintenance personnel detection, debugging, maintenance cooling system.So, the circulation that goes round and begins again.
2) finished product gas dew points at normal pressure reach≤-55 ℃, micro-heat regeneration absorbent drying system is devoted oneself to work.
Absorption process
When take pressure-variable adsorption cylinder A during as absorption (be dried) tin: should first close into pneumatic operated valve QV9, open pneumatic operated valve QV11(according to drying process, the a certain moment), the compressed air of undried band moisture is entered by pneumatic operated valve QV3, flow through pneumatic operated valve QV8 to the pressure-variable adsorption cylinder A bottom humid air drier of flowing through from bottom to top in cylinder, moisture in humid air is adsorbed, and dry compressed air is discharged the finished product gas of dew points at normal pressure≤-55 ℃ from dry air outlet by check valve ZV1, pneumatic operated valve QV5.In addition, the dry air of about 4%-6% flows into pressure-variable adsorption cylinder B by high-temperature ball valve DV2, heater R intensification 120 ℃ (can set separately as required), so that the drier desorb (regeneration) in pressure-variable adsorption cylinder B.
Desorption step
When pressure-variable adsorption cylinder B is desorb (regeneration) cylinder, the dry air of pressure-variable adsorption cylinder A is by the about 4%-6% of high-temperature ball valve DV2() as regeneration gas heater R 120 ℃ (can set separately as required) the pressure-variable adsorption cylinder B that flows through that heats up, blow away the moisture being adsorbed, through pneumatic operated valve QV11(according to drying process, a certain moment), discharge in silencer S.
Second cycle, pressure-variable adsorption cylinder A was desorption step, and pressure-variable adsorption cylinder B is absorption process, and switching cycle is generally 60 minutes (can set separately as required).
3) finished product gas dew points at normal pressure reach≤-70 ℃, combined type blots system (freezing type drying system and micro-heat regeneration absorbent drying system two one organically combine) and devotes oneself to work.
Gas to be processed enters from humid air entrance, the shell that enters efficient forecooler 10 by the pneumatic operated valve QV2 remove portion moisture of tentatively lowering the temperature, enter evaporimeter 9, in evaporimeter 9, carry out heat exchange with refrigeration system, carry out gas-water separation entering moisture trap 11, the gas obtaining is through pneumatic operated valve QV7, QV8 enters pressure-variable adsorption cylinder A, through the dry air of pressure-variable adsorption cylinder A by the about 4%-6% of high-temperature ball valve DV2() as regeneration gas heater R 120 ℃ (can set separately as required) the pressure-variable adsorption cylinder B that flows through that heats up, blow away the moisture being adsorbed, through pneumatic operated valve QV11(according to drying process, the a certain moment), after discharging in silencer S, then through check valve ZV1, pneumatic operated valve QV4 enters the pipe layer of efficient forecooler 10, finally by crossing pneumatic operated valve QV1, from dry air outlet, discharge the finished product gas of dew points at normal pressure≤-77 ℃.
4) finished product gas dew points at normal pressure reach≤-55 ℃, heatless regeneration absorbed type drying system is devoted oneself to work.
Absorption process
When take pressure-variable adsorption cylinder A during as absorption (be dried) tin: should first close into pneumatic operated valve QV9, open pneumatic operated valve QV11(according to drying process, the a certain moment), the compressed air of undried band moisture is entered by pneumatic operated valve QV3, flow through pneumatic operated valve QV8 to the pressure-variable adsorption cylinder A bottom humid air drier of flowing through from bottom to top in cylinder, moisture in humid air is adsorbed, and dry compressed air is discharged the finished product gas of dew points at normal pressure≤-55 ℃ from dry air outlet by check valve ZV1, pneumatic operated valve QV5.In addition, the dry air of about 12%-15% flows into pressure-variable adsorption cylinder B by high-temperature ball valve DV1, so that the drier desorb (regeneration) in pressure-variable adsorption cylinder B.
Desorption step
When pressure-variable adsorption cylinder B is desorb (regeneration) cylinder, the dry air of pressure-variable adsorption cylinder A is by the about 12%-15% of high-temperature ball valve DV1() as regeneration air stream through pressure-variable adsorption cylinder B, blow away the moisture being adsorbed, through pneumatic operated valve QV11(according to drying process, a certain moment), discharge in silencer S.
Second cycle, pressure-variable adsorption cylinder A was desorption step, and pressure-variable adsorption cylinder B is absorption process, and switching cycle is generally 60 minutes (can set separately as required).
5) finished product gas dew points at normal pressure reach≤-70 ℃, combined type blots system (freezing type drying system and heatless regeneration absorbed type drying system two one organically combine) and devotes oneself to work.
Gas to be processed enters from humid air entrance, the shell that enters efficient forecooler 10 by the pneumatic operated valve QV2 remove portion moisture of tentatively lowering the temperature, enter evaporimeter 9, in evaporimeter 9, carry out heat exchange with refrigeration system, carry out gas-water separation entering moisture trap 11, the gas obtaining is through pneumatic operated valve QV7, QV8 enters pressure-variable adsorption cylinder A, through the dry air of pressure-variable adsorption cylinder A by the about 12%-15% of high-temperature ball valve DV1() as regeneration air stream through pressure-variable adsorption cylinder B, blow away the moisture being adsorbed, through pneumatic operated valve QV11(according to drying process, the a certain moment), after discharging in silencer S, then through check valve ZV1, pneumatic operated valve QV4 enters the pipe layer of efficient forecooler 10, finally by crossing pneumatic operated valve QV1, from dry air outlet, discharge the finished product gas of dew points at normal pressure≤-77 ℃.
Claims (4)
1. a multifunction combined low dew point gas drier, it is characterized in that comprising freezing type drying system and micro-heat regeneration absorbent drying system, described freezing type drying system comprises efficient forecooler (10), the evaporimeter (9) being connected with efficient forecooler (10), the refrigeration system being connected with evaporimeter (9), the moisture trap (11) being connected with evaporimeter (9), described moisture trap (11) one tunnels connect efficient forecooler (10), another road connects micro-heat regeneration absorbent drying system, described micro-heat regeneration absorbent drying system comprises pressure-variable adsorption cylinder A, pressure-variable adsorption cylinder B, heater R and silencer S, described pressure-variable adsorption cylinder A exports a road and is connected with efficient forecooler (10), the heater R of separately leading up to is connected with the outlet of pressure-variable adsorption cylinder B finished product gas, described pressure-variable adsorption cylinder B bottom inlet is connected with silencer S.
2. a kind of multifunction combined low dew point gas drier as claimed in claim 1, is characterized in that described refrigeration system comprises and the middle loop-coupled gas-liquid separator of refrigerant pipe (8) of evaporimeter (9), cold medium compressor (1), oil water separator (14), air-cooled condenser (3), device for drying and filtering (4) and heating power expansion valve (6).
3. a kind of multifunction combined low dew point gas drier as claimed in claim 1, is characterized in that described moisture trap (11) and on it, is connected successively ball valve (12), electronic drain valve (13) formation drainage.
4. a kind of multifunction combined low dew point gas drier as claimed in claim 2, it is characterized in that between refrigerant pipe import, being parallel with hot gas bypass valve (2) in described oil water separator (14) and evaporimeter (9), in described oil water separator (14) and evaporimeter (9), between refrigerant pipe outlet, be parallel with high and low voltage switch (7), between described device for drying and filtering (4) and heating power expansion valve (6), be provided with visor (5).
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| CN201320575604.XU CN203507786U (en) | 2013-09-17 | 2013-09-17 | Multifunctional combined type low dew point gas drying device |
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| CN201320575604.XU CN203507786U (en) | 2013-09-17 | 2013-09-17 | Multifunctional combined type low dew point gas drying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480246A (en) * | 2013-09-17 | 2014-01-01 | 杭州天跃气体设备制造有限公司 | Multifunctional combined-type low-dew-point gas drying device |
| CN104528654A (en) * | 2014-10-08 | 2015-04-22 | 吉林市卓欣康泰医疗科技有限公司 | Medical central oxygen-generating air purification system and operation method thereof |
| CN108786390A (en) * | 2018-07-17 | 2018-11-13 | 中国工程物理研究院核物理与化学研究所 | Reactor plant compressed air dehumidifying device and dehumanization method |
-
2013
- 2013-09-17 CN CN201320575604.XU patent/CN203507786U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480246A (en) * | 2013-09-17 | 2014-01-01 | 杭州天跃气体设备制造有限公司 | Multifunctional combined-type low-dew-point gas drying device |
| CN104528654A (en) * | 2014-10-08 | 2015-04-22 | 吉林市卓欣康泰医疗科技有限公司 | Medical central oxygen-generating air purification system and operation method thereof |
| CN108786390A (en) * | 2018-07-17 | 2018-11-13 | 中国工程物理研究院核物理与化学研究所 | Reactor plant compressed air dehumidifying device and dehumanization method |
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Granted publication date: 20140402 |