CN203949420U - Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment - Google Patents
Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment Download PDFInfo
- Publication number
- CN203949420U CN203949420U CN201420400334.3U CN201420400334U CN203949420U CN 203949420 U CN203949420 U CN 203949420U CN 201420400334 U CN201420400334 U CN 201420400334U CN 203949420 U CN203949420 U CN 203949420U
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- ammonia
- motor
- driven valve
- room
- airtight
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Abstract
The utility model relates to pipe safety protective device; ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment is disclosed; comprise ammonia detector, ammoniacal sensor, motor-driven valve and ventilating fan; ammoniacal sensor, ammonia detector and ventilating fan are all located on the overcoat of roof, airtight ammonia room; ammoniacal sensor, motor-driven valve and ventilating fan are all connected with ammonia detector; motor-driven valve is located on the ammonia refrigeration pipeline outside airtight ammonia room; motor-driven valve comprises the first motor-driven valve and the second motor-driven valve, and the second motor-driven valve is less to the distance in airtight ammonia room than the first motor-driven valve to the distance in airtight ammonia room.The utility model provides ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment; adopt the interlocking of ammoniacal sensor, ammonia detector, motor-driven valve and ventilating fan integrated; read the ammonia concentration value in airtight ammonia room by ammoniacal sensor and ammonia detector; when pipeline generation ammonia is leaked, can close in time ammoniacal liquor turnover and discharge the ammonia leaking, having avoided ammonia to leak causing the poisoning and explosion accident of personnel.
Description
Technical field
The utility model relates to pipe safety protective device, relates in particular to ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment.
Background technology
At present; the research of both at home and abroad ammonia being leaked is more and more; particularly ammonia risk assessment has become the focus of Research on Safety Assessment; but prior art research mainly concentrates on the field that densely populated property is less, accident rate is less; what relate generally to is the inspection aspect of pipeline; seldom relate to the safety interlock protector of refrigeration piping, almost blank for ammonia refrigeration pipe safety interlocking protective device aspect under closed environment.From the ammonia leakage accident of domestic generation of statistics in recent years; the accident probability that ammonia pipeline in closed environment not only occurs is far longer than other ammonia equipment; and the consequence of accident is also more serious, be therefore extremely necessary to accelerate ammonia refrigeration pipe safety interlocking protective device under the efficient closed environment of research and development.
Summary of the invention
The utility model is for there is no ammonia refrigeration pipe safety interlocking protective device under closed environment in prior art, provide a kind of and can effectively control ammonia refrigeration pipe safety interlocking protective device under the closed environment that occurs the poisoning and explosion accident of contingent personnel after ammonia leakage situation.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment, comprise ammonia detector, ammoniacal sensor, motor-driven valve and ventilating fan, ammoniacal sensor, ammonia detector and ventilating fan are all located on the overcoat of roof, airtight ammonia room, ammoniacal sensor, motor-driven valve is all connected with ammonia detector with ventilating fan, motor-driven valve is located on the ammonia refrigeration pipeline outside airtight ammonia room, motor-driven valve comprises the second motor-driven valve that the first motor-driven valve between being fixedly located at ammonia refrigeration pipeline imports and exports and ammonia refrigeration conduit entrance place and exit are all fixed with, the second motor-driven valve is less to the distance in airtight ammonia room than the first motor-driven valve to the distance in airtight ammonia room.Ammonia detector inside PLC system module, the ammonia concentration value in the airtight ammonia room collecting is transferred to ammonia detector by ammoniacal sensor, ammonia detector obtains the ammonia leakage rate in airtight ammonia room, can automatically close the second motor-driven valve and make ammoniacal liquor stop passing in and out airtight ammonia room when leakage rate reaches or exceeds when setting value ammonia detector, the ammonia concentration value in airtight ammonia room is raise no longer rapidly at short notice; Also can automatically open ventilating fan, automatically discharge the ammonia of airtight ammonia room internal leakage, make to reach safe condition in airtight ammonia room.
As preferably, ammonia refrigeration pipeline is through airtight ammonia room, the first motor-driven valve and the second motor-driven valve are respectively two and four, two the first motor-driven valves are fixedly located at respectively ammonia refrigeration pipeline through the import and export of both sides, airtight ammonia room, two the second motor-driven valves are fixedly located at respectively the import department of ammonia refrigeration pipeline through both sides, airtight ammonia room, and another two the second motor-driven valves are fixedly located at respectively the exit of ammonia refrigeration pipeline through both sides, airtight ammonia room.
As preferably, ventilating fan is provided with motor, and motor is by the control of ammonia detector, and airtight ammonia is provided with control room outside room, and ammonia detector is connected with control room.Control room is provided with PLC system module, meet the ammonia concentration value of safety in airtight ammonia room by the control software set based on ladder diagram, if ammonia concentration value is greater than setting value 1 and is not more than 2 in airtight ammonia room, ammonia detector control motor is opened ventilating fan automatically, until ammonia concentration value is reduced to setting value 1 o'clock, ammonia detector control motor cuts out ventilating fan automatically; If ammonia concentration value is greater than 2 in airtight ammonia room, ammonia detector can automatically be closed the second motor-driven valve and be made ammoniacal liquor stop passing in and out airtight ammonia room, when automatically opening the first motor-driven valve simultaneously and avoiding pressure vessel running, the manifold pressure causing due to emergency cut-off the second motor-driven valve sharply rises and causes the other accident of pipeline, and automatically open ventilating fan simultaneously, the ammonia of automatically discharging the room internal leakage of airtight ammonia, makes to reach safe condition in airtight ammonia room.
The utility model is owing to having adopted above technical scheme, there is significant technique effect: adopt the interlocking of ammoniacal sensor, ammonia detector, motor-driven valve and ventilating fan integrated, read the ammonia concentration value in airtight ammonia room by ammoniacal sensor and ammonia detector, when pipeline generation ammonia is leaked, can close in time ammoniacal liquor turnover and discharge the ammonia leaking, having avoided ammonia to leak causing the poisoning and explosion accident of personnel.
Brief description of the drawings
Fig. 1 is the structural representation of ammonia refrigeration pipe safety interlocking protective device embodiment under the utility model closed environment.
Fig. 2 is the control flow chart of the utility model ammonia detector embodiment.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-roof overcoat, 2-motor, 3-ventilating fan, 4-airtight ammonia room, 5-ammoniacal sensor, 6-ammonia detector, the 7-the second motor-driven valve, 8-control room, the 9-the first motor-driven valve, 10-ammonia refrigeration pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment, as shown in Figure 1-2, comprise ammonia detector 6, ammoniacal sensor 5, motor-driven valve and ventilating fan 3, ammoniacal sensor 5, ammonia detector 6 and ventilating fan 3 are all located on airtight ammonia room 4 roof overcoats 1, ammoniacal sensor 5, motor-driven valve is all connected with ammonia detector 6 with ventilating fan 3, motor-driven valve is located on the ammonia refrigeration pipeline 10 outside airtight ammonia room 4, motor-driven valve comprises the second motor-driven valve 7 that the first motor-driven valve 9 between being fixedly located at ammonia refrigeration pipeline 10 imports and exports and ammonia refrigeration pipeline 10 import departments and exit are all fixed with, the second motor-driven valve 7 is less to the distance in airtight ammonia room 4 than the first motor-driven valve 9 to the distance in airtight ammonia room 4, ammonia refrigeration pipeline 10 is through airtight ammonia room 4, the first motor-driven valve 9 and the second motor-driven valve 7 are respectively two and four, two the first motor-driven valves 9 are fixedly located at respectively ammonia refrigeration pipeline 10 through the import and export of 4 both sides, airtight ammonia room, two the second motor-driven valves 7 are fixedly located at respectively the import department of ammonia refrigeration pipeline 10 through 4 both sides, airtight ammonia room, and another two the second motor-driven valves 7 are fixedly located at respectively the exit of ammonia refrigeration pipeline 10 through 4 both sides, airtight ammonia room, ventilating fan 3 is provided with motor 2, and motor 2 is controlled by ammonia detector 6, and airtight ammonia room 4 is outer is provided with control room 8, and ammonia detector 6 is connected with control room 8.
Ammonia detector 6 inside PLC system modules, the ammonia concentration value in the airtight ammonia room 4 collecting is transferred to ammonia detector 6 by ammoniacal sensor 5, ammonia detector 6 obtains the ammonia leakage rate in airtight ammonia room 4 and is transferred to control room 8, control room 8 is provided with PLC system module, meet the interior safe ammonia concentration value in airtight ammonia room 4 by the control software set based on ladder diagram, if the interior ammonia concentration value in airtight ammonia room 4 is greater than setting value 1 and is not more than 2, ammonia detector 6 is controlled motor 2 and is automatically opened ventilating fan 3, until ammonia concentration value is reduced to setting value 1 o'clock, ammonia detector 6 is controlled motor 2 and is automatically closed ventilating fan 3, if the interior ammonia concentration value in airtight ammonia room 4 is greater than 2, ammonia detector 6 can automatically be closed the second motor-driven valve 7 and be made ammoniacal liquor stop passing in and out airtight ammonia room 4, automatically open the first motor-driven valve 9 simultaneously, while avoiding pressure vessel running, the manifold pressure causing due to emergency cut-off the second motor-driven valve 7 sharply rises and causes the other accident of pipeline, and automatically open ventilating fan 3 simultaneously, and automatically discharge the ammonia of airtight ammonia room 4 internal leakages, make to reach safe condition in airtight ammonia room 4.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (3)
1. ammonia refrigeration pipe safety interlocking protective device under a closed environment, it is characterized in that: comprise ammonia detector (6), ammoniacal sensor (5), motor-driven valve and ventilating fan (3), ammoniacal sensor (5), ammonia detector (6) and ventilating fan (3) are all located on airtight ammonia room (4) roof overcoat (1), ammoniacal sensor (5), motor-driven valve is all connected with ammonia detector (6) with ventilating fan (3), motor-driven valve is located on the outer ammonia refrigeration pipeline (10) in airtight ammonia room (4), motor-driven valve comprises the second motor-driven valve (7) that the first motor-driven valve (9) between being fixedly located at ammonia refrigeration pipeline (10) imports and exports and ammonia refrigeration pipeline (10) import department and exit are all fixed with, the second motor-driven valve (7) is less to the distance in airtight ammonia room (4) than the first motor-driven valve (9) to the distance in airtight ammonia room (4).
2. ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment according to claim 1, it is characterized in that: ammonia refrigeration pipeline (10) is through airtight ammonia room (4), the first motor-driven valve (9) and the second motor-driven valve (7) are respectively two and four, two the first motor-driven valves (9) are fixedly located at respectively ammonia refrigeration pipeline (10) through the import and export of both sides, airtight ammonia room (4), two the second motor-driven valves (7) are fixedly located at respectively the import department of ammonia refrigeration pipeline (10) through both sides, airtight ammonia room (4), another two the second motor-driven valves (7) are fixedly located at respectively the exit of ammonia refrigeration pipeline (10) through both sides, airtight ammonia room (4).
3. ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment according to claim 1; it is characterized in that: ventilating fan (3) is provided with motor (2); motor (2) is controlled by ammonia detector (6); airtight ammonia room (4) is outer is provided with control room (8), and ammonia detector (6) is connected with control room (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400334.3U CN203949420U (en) | 2014-07-18 | 2014-07-18 | Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400334.3U CN203949420U (en) | 2014-07-18 | 2014-07-18 | Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203949420U true CN203949420U (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400334.3U Expired - Fee Related CN203949420U (en) | 2014-07-18 | 2014-07-18 | Ammonia refrigeration pipe safety interlocking protective device under a kind of closed environment |
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| Country | Link |
|---|---|
| CN (1) | CN203949420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596149A (en) * | 2015-01-28 | 2015-05-06 | 江村 | Alarming and explosion protection system of ammonia refrigerating station |
| CN110926722A (en) * | 2019-11-22 | 2020-03-27 | 上海宝冶集团有限公司 | Ammonia charging test method for refrigeration pipeline system |
-
2014
- 2014-07-18 CN CN201420400334.3U patent/CN203949420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596149A (en) * | 2015-01-28 | 2015-05-06 | 江村 | Alarming and explosion protection system of ammonia refrigerating station |
| CN110926722A (en) * | 2019-11-22 | 2020-03-27 | 上海宝冶集团有限公司 | Ammonia charging test method for refrigeration pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160718 |