CN201327281Y - Closed circulation spray drying tower pressure safeguard system - Google Patents
Closed circulation spray drying tower pressure safeguard system Download PDFInfo
- Publication number
- CN201327281Y CN201327281Y CNU2008201593856U CN200820159385U CN201327281Y CN 201327281 Y CN201327281 Y CN 201327281Y CN U2008201593856 U CNU2008201593856 U CN U2008201593856U CN 200820159385 U CN200820159385 U CN 200820159385U CN 201327281 Y CN201327281 Y CN 201327281Y
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Abstract
The utility model discloses a closed circulation spray drying tower pressure safeguard system, which comprises an atomizing chamber (22), a heat exchanger (12), a nitrogen adjusting valve, a ventilator (16), a leaching tower (17), a draught fan (18) and a dust precipitator (19). An automatic main vent valve (10), an automatic bypass vent valve (11) and a water seal (9) are arranged on the top portion of the atomizing chamber (22), wherein the automatic main vent valve (10) and the automatic bypass vent valve (11) are in parallel connection, an automatic vent valve (14) is mounted between the heat exchanger (12) and the ventilator (16), the nitrogen adjusting valve is an automatic nitrogen adjusting valve (15), the automatic main vent valve (10), the automatic bypass vent valve (11), the automatic vent valve (14) and the automatic nitrogen adjusting valve (15) are in electric connection with a PLC control system, the atomizing chamber (22) is provided with a manual emptying valve (20) and a first mechanical pressure gauge (21), and the automatic nitrogen adjusting valve (15) is equipped with a second mechanical pressure gauge (13). The system with good safety and high reliability greatly improves the safety performance of a spray drying system.
Description
Technical field
The utility model relates to a kind of spray drying tower pressure security protection system, particularly relates to a kind of closed cycle spray drying tower pressure security protection system.
Technical background
Along with the continuous development of domestic spray-drying industry, various spray drying systems have played more and more important effect in the raising that promotes the different industries properties of product.Yet development along with technology, enterprise has proposed more harsh requirement to the aspects such as security performance of spray drying system, but more or less there is such problem in present drying equipment both domestic and external: pressure is difficult to control, heat carrier consumption is big, lyase leaks seriously, automaticity is not high.
The utility model content
Technical problem to be solved in the utility model provides a kind of high-pressure and low-pressure that can bear various moments, has guaranteed the closed cycle spray drying tower pressure security protection system that is perfectly safe of equipment.
In order to solve the problems of the technologies described above; the closed cycle spray drying tower pressure security protection system that the utility model provides; comprise the spray chamber that connects by technological requirement; heat exchanger; nitrogen adjustment valve; pressure fan; eluting column; air-introduced machine and dust-precipitator; be provided with automatic main exhaust valve and auto by pass air bleeding valve in parallel at described spray chamber top; also be provided with water seal at described spray chamber top; between described heat exchanger and described pressure fan, be provided with automatic exhaust steam valve; described nitrogen adjustment valve is automatic nitrogen adjustment valve; described automatic main exhaust valve; the auto by pass air bleeding valve; automatic exhaust steam valve and automatic nitrogen adjustment valve are electrically connected with the PLC control system; described spray chamber is provided with manual exhaust-valve; described spray chamber is provided with first mechanical pressure gauge, and second mechanical pressure gauge is equipped with at described automatic nitrogen adjustment valve place.
Described water seal is to be provided with inner barrel on outer cylinder body, described inner barrel upper end is communicated with atmosphere and is provided with water inlet pipe, the lower end extends near described outer cylinder body bottom, top at described outer cylinder body is provided with discharge duct, circulating line one end is communicated with described outer cylinder body, the other end is connected with described inner barrel, and described circulating line is provided with gap, and described outer cylinder body is provided with quartz tube type liquid level gauge and fluid level controller.
Adopt the closed cycle spray drying tower pressure security protection system of technique scheme, thoroughly solved problems such as tower internal pressure instability, nitrogen consumption that the conventionally spray-dried system occurred are excessive, the lyase leakage is serious.Adopt this mode that pressure is controlled; not only realized full automatic PID closed loop pressure adjusting; and multistage multiple safeguard protection mode; can bear the high-pressure and low-pressure of various moments; guaranteed being perfectly safe of equipment; greatly satisfied above-mentioned industry to many-sided requirements such as security performances; simultaneously; product quality and operating environment also had improve greatly and improve; lifting, the replacement to the spray-drying industry product have been played positive promotion and facilitation, and will have been produced far-reaching influence.
In sum, the utility model is a kind of high-pressure and low-pressure that can bear various moments, has guaranteed being perfectly safe of equipment, the closed cycle spray drying tower pressure security protection system of good reliability.
Description of drawings
Fig. 1 is a principle flow chart of the present utility model;
Fig. 2 is that the structure of water seal of the present utility model is always schemed;
Fig. 3 is the vertical view of water seal of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Referring to Fig. 1, Fig. 2 and Fig. 3, spray chamber 22, heat exchanger 12, automatic nitrogen adjustment valve 15, pressure fan 16, eluting column 17, air-introduced machine 18 and dust-precipitator 19 are connected by technological requirement, be provided with automatic main exhaust valve 10 and auto by pass air bleeding valve 11 in parallel at spray chamber 22 tops, also be provided with water seal 9 at spray chamber 22 tops, between heat exchanger 12 and pressure fan 16, be provided with automatic exhaust steam valve 14, automatic main exhaust valve 10, auto by pass air bleeding valve 11, automatic exhaust steam valve 14 and automatic nitrogen adjustment valve 15 are electrically connected with the PLC control system, spray chamber 22 is provided with manual exhaust-valve 20, spray chamber 22 is provided with first mechanical pressure gauge 21, and second mechanical pressure gauge 13 is equipped with at nitrogen adjustment valve 15 places automatically.
Water seal 9 is to be provided with inner barrel 1 on outer cylinder body 3, inner barrel 1 upper end is communicated with atmosphere and is provided with water inlet pipe 23, the lower end extends near outer cylinder body 3 bottoms, be provided with discharge duct 4 on the top of outer cylinder body 3, circulating line 2 one ends are communicated with outer cylinder body 3, and the other end is connected with inner barrel 1, and circulating line 2 is provided with gap 8, outer cylinder body 3 is provided with quartz tube type liquid level gauge 6 and fluid level controller 7, and discharge duct 4 is communicated with spray chamber 22 by taking over 5.
Referring to Fig. 1, Fig. 2 and Fig. 3, whole system is moved under slight positive pressure state, when system surpasses certain pressure by the automatic main exhaust valve 10 and 11 emptyings of auto by pass air bleeding valve of cat head; Reach certain pressure again by the automatic exhaust steam valve 14 direct emptyings of mending the nitrogen place; Because control valve is malfunctioning can not discharge the tower internal pressure time, or the water seal 9 of top of tower will be opened protection system safety automatically when negative pressure occurring when the tower body internal pressure.
In order to guarantee being perfectly safe of system, native system has adopted three kinds of pressure release modes (automatic decompression device, mechanical pressure relief device, manual pressure relief device), the level Four decompression protection, and five places' pressure detecting show:
1), at cat head with mend the nitrogen mouth three automatic decompression valves have been installed is automatic main exhaust valve 10 and auto by pass air bleeding valve 11, automatic exhaust steam valve 14, according to the detected pressure of intelligent pressure transmitter, if system overpressure, three valves will be by PLC setting program releasing pressure automatically; If under-voltage in the tower, nitrogen adjustment valve 15 is replenished the tower internal pressure rapidly to setting value according to the automatic aperture of regulating automatic nitrogen adjustment valve 15 of pressure size automatically.
2), first mechanical pressure gauge 21 and second mechanical pressure gauge 13 all are housed at operating platform and automatic nitrogen adjustment valve 15 places, so that under powering-off state, still can monitor in real time to the tower internal pressure, if superpressure or under-voltage in the tower, at operating desk manual exhaust-valve 20 is housed, can open immediately and make system's internal pressure balance, guarantee tower body safety.
3), water seal 9 has been installed at cat head; this device is according to limiting pressure design in the tower; its scope is within system limits pressure; if superpressure or under-voltage its design load that reaches; water seal is with breakdown; system and extraneous UNICOM, instantaneous pressure will reach balance, and this system is last one barrier of tower internal pressure protection.
Normal condition: when system moves in normally-pressured neighbor P1～P2, all valve closings;
The superpressure state: when system pressure reached P2～P3, auto by pass air bleeding valve 11 was opened, other valve closing;
When system pressure reached P3～P4, auto by pass air bleeding valve 11, main exhaust valve 10 was opened other valve closing simultaneously automatically;
When system pressure reached P4～P5, auto by pass air bleeding valve 11, main exhaust valve 10, automatic exhaust steam valve 14 were opened simultaneously automatically, and nitrogen adjustment valve 15 is closed automatically, and manually exhaust-valve 20 is also opened immediately;
When system pressure surpasses P5, auto by pass air bleeding valve 11, automatic main exhaust valve 10, automatic exhaust steam valve 14 are opened simultaneously, and nitrogen adjustment valve 15 is closed automatically, and manually exhaust-valve 20 is also opened immediately, water seal 9 punctures automatically, and system's external and internal pressure reaches poised state.
Negative pressure state: when system pressure reached F1～F2, nitrogen adjustment valve 15 was opened other valve closing automatically;
When system pressure was lower than F2, nitrogen adjustment valve 15 was opened automatically, other valve closing, and water seal 9 punctures automatically, and system's external and internal pressure reaches poised state.
The water seal state: water seal 9 liquid levels are in desired location for a long time, and when water seal 9 water level liquid levels were lower than desired location, inlet valve was opened, and system's automatic water supplement is to keep water level balance.When system overpressure or under-voltage when the design load, water seal is stressed difference with breakdown, and system's external and internal pressure reaches balance.
Claims (2)
1; a kind of closed cycle spray drying tower pressure security protection system; comprise the spray chamber (22) that connects by technological requirement; heat exchanger (12); nitrogen adjustment valve; pressure fan (16); eluting column (17); air-introduced machine (18) and dust-precipitator (19); it is characterized in that: be provided with automatic main exhaust valve (10) and auto by pass air bleeding valve (11) in parallel at described spray chamber (22) top; also be provided with water seal (9) at described spray chamber (22) top; between described heat exchanger (12) and described pressure fan (16), be provided with automatic exhaust steam valve (14); described nitrogen adjustment valve is automatic nitrogen adjustment valve (15); described automatic main exhaust valve (10); auto by pass air bleeding valve (11); automatic exhaust steam valve (14) and automatic nitrogen adjustment valve (15) are electrically connected with the PLC control system; described spray chamber (22) is provided with manual exhaust-valve (20); described spray chamber (22) is provided with first mechanical pressure gauge (21), and described automatic nitrogen adjustment valve (15) locates to be equipped with second mechanical pressure gauge (13).
2; closed cycle spray drying tower pressure security protection system according to claim 1; it is characterized in that: described water seal (9) is to be provided with inner barrel (1) on outer cylinder body (3); described inner barrel (1) upper end is communicated with atmosphere and is provided with water inlet pipe (23); the lower end extends near described outer cylinder body (3) bottom; be provided with discharge duct (4) on the top of described outer cylinder body (3); circulating line (2) one ends are communicated with described outer cylinder body (3); the other end is connected with described inner barrel (1); described circulating line (2) is provided with gap (8), and described outer cylinder body (3) is provided with quartz tube type liquid level gauge (6) and fluid level controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593856U CN201327281Y (en) | 2008-11-25 | 2008-11-25 | Closed circulation spray drying tower pressure safeguard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201593856U CN201327281Y (en) | 2008-11-25 | 2008-11-25 | Closed circulation spray drying tower pressure safeguard system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327281Y true CN201327281Y (en) | 2009-10-14 |
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ID=41179253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201593856U Expired - Lifetime CN201327281Y (en) | 2008-11-25 | 2008-11-25 | Closed circulation spray drying tower pressure safeguard system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327281Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949635A (en) * | 2010-09-26 | 2011-01-19 | 常州力马干燥工程有限公司 | Closed cycle spray drying and solvent recovery system |
| CN104698198A (en) * | 2015-03-24 | 2015-06-10 | 江苏华爵检测技术股份有限公司 | Gas analysis cabinet |
| CN107824121A (en) * | 2017-12-25 | 2018-03-23 | 无锡市尚德干燥设备有限公司 | Safety-type internal pressure control spray drying tower |
| CN112024107A (en) * | 2020-08-03 | 2020-12-04 | 内蒙古双欣环保材料股份有限公司 | Low-temperature crushing system and low-temperature crushing process |
-
2008
- 2008-11-25 CN CNU2008201593856U patent/CN201327281Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949635A (en) * | 2010-09-26 | 2011-01-19 | 常州力马干燥工程有限公司 | Closed cycle spray drying and solvent recovery system |
| CN101949635B (en) * | 2010-09-26 | 2012-02-22 | 常州力马干燥工程有限公司 | Closed cycle spray drying and solvent recovery system |
| CN104698198A (en) * | 2015-03-24 | 2015-06-10 | 江苏华爵检测技术股份有限公司 | Gas analysis cabinet |
| CN107824121A (en) * | 2017-12-25 | 2018-03-23 | 无锡市尚德干燥设备有限公司 | Safety-type internal pressure control spray drying tower |
| CN112024107A (en) * | 2020-08-03 | 2020-12-04 | 内蒙古双欣环保材料股份有限公司 | Low-temperature crushing system and low-temperature crushing process |
| CN112024107B (en) * | 2020-08-03 | 2023-01-06 | 内蒙古双欣环保材料股份有限公司 | Low-temperature crushing system and low-temperature crushing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |