CN111784957A - Cargo compartment smoke detection system testing method - Google Patents
Cargo compartment smoke detection system testing method Download PDFInfo
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- CN111784957A CN111784957A CN202010436573.4A CN202010436573A CN111784957A CN 111784957 A CN111784957 A CN 111784957A CN 202010436573 A CN202010436573 A CN 202010436573A CN 111784957 A CN111784957 A CN 111784957A
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- smoke
- cavity
- tank
- chamber
- detection system
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- 239000000779 smoke Substances 0.000 title claims abstract description 117
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 12
- 238000010998 test method Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 235000019504 cigarettes Nutrition 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a test method of a cargo compartment smoke detection system, which adopts a specially-made test tool and comprises a smoke cavity body, a pressure cavity body and a smoke reagent tank, wherein the smoke cavity body is of a vertically-penetrating structure and comprises a first smoke cavity, a second smoke cavity and a third smoke cavity from top to bottom, the diameter of the first smoke cavity is larger than that of the third smoke cavity and larger than that of the second smoke cavity, the pressure cavity body is of a vertically-penetrating structure and comprises a placing cavity and a conducting cavity from top to bottom, the outer side wall of the placing cavity is provided with an external thread, the inner side wall of the third smoke cavity is provided with an internal thread matched with the external thread, the smoke reagent tank comprises a tank body and a tank neck, the tank body is placed in the placing cavity, the tank neck is placed in the second smoke cavity, and the height of the tank body is larger than the depth of the placing cavity. The portable smoke detector is convenient to carry, can avoid the phenomenon that a large amount of smoke scatters outside to pollute air in the traditional test method, and solves the problem that a dangerous goods cabin smoke detection system cannot be tested by open fire, so that the test is difficult.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a test method of a smoke detection system of a cargo compartment.
Background
One of the psc (port State Control inspection) inspection items of the port country of the ship is a functional inspection of whether the smoke detection system of the cargo compartment of the container ship meets the specification, that is, the inspection of the smoke detection system of the cargo compartment area, especially the dangerous goods compartment, is stricter, and for a crew, it becomes very important to have a tool capable of quickly and accurately completing a test.
The function and the pipeline of a smoke detection system need to be tested at a mooring test connection section of a new ship wharf, smoke needs to be manufactured before testing, and the existing method mainly comprises two methods, wherein firstly, smoke is released by adopting a tobacco cake, and secondly, diesel oil is burnt at the bottom of a cabin to be broken, the smoke can generate a large amount of smoke to enable an alarm to be incapable of resetting, dust can be attached to a probe to influence the service life of the probe, and black dust can be left on the cabin wall of the smoke breaking device.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a test method of a cargo compartment detection system, which can quickly complete the test of the smoke detection alarm function of the cargo compartment and cannot influence the appearance of the compartment wall and the function of the detection system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a test method of a cargo compartment smoke detection system, which comprises the following steps:
the method comprises the following steps of firstly, manufacturing a test tool, wherein the test tool comprises a smoke cavity body, a pressure cavity body and a smoke reagent tank, the smoke cavity body is of a structure penetrating through the smoke cavity body from top to bottom and comprises a first smoke cavity, a second smoke cavity and a third smoke cavity from top to bottom, the diameter of the first smoke cavity is larger than that of the third smoke cavity and larger than that of the second smoke cavity, the pressure cavity body is of a structure penetrating through the pressure cavity body from top to bottom and comprises a placing cavity and a conducting cavity from top to bottom, external threads are arranged on the outer side wall of the placing cavity, internal threads matched with the external threads are arranged on the inner side wall of the third smoke cavity, the smoke reagent tank comprises a tank body and a tank neck, the tank body is placed in the placing cavity, the tank neck is placed in the second smoke cavity, and the;
step two, the end part of the first smoke cavity is buckled on a bulkhead to form a closed area with the bulkhead, a bulkhead opening is formed in the bulkhead in the closed area, the pressure cavity body is rotated in the forward direction, and the second pressure cavity extrudes the tank body to release smoke;
and step three, reversely selecting and installing the pressure cavity, so that the conducting cavity is communicated with the first smoke cavity, and the smoke is conveyed to the smoke box through the sampling pipe from the opening of the cabin wall.
Preferably, a rubber sealing ring is arranged at one end of the first smoke chamber, which is in contact with the bulkhead.
As a preferred technical scheme, the diameter of the placing cavity is larger than that of the tank body.
As a preferable technical scheme, a pressing plate is arranged at one end of the second smoke cavity communicated with the third smoke cavity, a pressing hole is formed in the pressing plate, and the diameter of the pressing hole is larger than that of the can neck and smaller than that of the can body.
As the preferred technical scheme, the smoke cavity and the pressure cavity are made of nylon materials.
As a preferred technical scheme, the depth of the third smoke cavity is 68mm, and the length of the external thread is 44 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) when the smoke alarm test device is used, the sealing ring is pressed on the bulkhead, a closed space is formed between the smoke cavity and the bulkhead, smoke is connected into the smoke box of the smoke detection system from the opening of the bulkhead, and the smoke in the smoke reagent tank is released by rotating the pressure cavity to ensure that continuous smoke at the opening enters the sampling tube and then enters the smoke box to achieve the smoke alarm test function.
(2) The portable smoke detector is convenient to carry, can avoid the phenomenon that a large amount of smoke scatters outside to pollute air in the traditional test method, and solves the problem that a dangerous goods cabin smoke detection system cannot be tested by open fire, so that the test is difficult.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test fixture for a cargo compartment smoke detection system according to the present invention.
Fig. 2 is a second schematic structural diagram of the tool for testing the cargo compartment smoke detection system according to the invention.
Wherein the reference numerals are specified as follows: the smoke chamber comprises a smoke chamber body 1, a pressure chamber body 2, a sealing ring 3, a smoke reagent tank 4, a first smoke chamber 11, a second smoke chamber 12, a third smoke chamber 13, a pressing plate 14, a placing chamber 21 and a conducting chamber 22.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The smoke detection system of cargo hold used by most ships at present is SDS-48 type product of SAFETEC company of Germany, the product is manufactured according to IMO Resolution MEPC standard, the detection sensitivity is high, the working principle is a transmittance measurement method, different transmittance intensities of particle pollutants in the air are monitored by using an Apollo 55000-. The fire alarm controller system continuously detects the smoke detector sensor components and associated electronics to ensure that the cargo compartment smoke detection system is operational.
As shown in fig. 1 and 2, the present embodiment provides a test fixture for a cargo compartment smoke detection system, including a smoke cavity 1, a pressure cavity 2, a sealing ring 3 and a smoke reagent tank 4, wherein the smoke cavity 1 and the pressure cavity 2 are both made of a translucent nylon material, and the nylon material has the characteristics of light structure and convenience in processing. The sealing ring 3 is made of pressure-resistant, oil-resistant and high-temperature-resistant rubber materials.
The smoke reagent tank 4 comprises a tank body and a tank neck.
The cigarette cavity 1 is the structure that runs through from top to bottom, and from top to bottom includes first cigarette chamber 11, second cigarette chamber 12, third cigarette chamber 13, and the diameter that the diameter of first cigarette chamber 11 is greater than third cigarette chamber 13 is greater than the diameter of second cigarette chamber 12, and the tip of first cigarette chamber 11 is provided with rubber seal 3. One end of the second smoke cavity 12 communicated with the third smoke cavity 13 is provided with a pressing plate 14, a pressing hole is formed in the pressing plate 14, and the diameter of the pressing hole is larger than that of the can neck and smaller than that of the can body.
The method of use of this example is as follows: set up the trompil at the lateral wall of boats and ships, during the use, press sealing washer 3 on the bulkhead, form airtight space between smoke chamber 1 and the bulkhead, smog is by bulkhead trompil department through the smog case that inserts smog detecting system, presses cavity 2 through forward rotation for clamp plate 14 on the smoke chamber 1 forms the extrusion to smog reagent tank 4, and smog reagent tank 4 receives release smog after the extrusion. The pressure cavity 2 is selected and installed reversely, so that the conducting cavity 22 is conducted with the first smoke cavity 11, and the smoke is conveyed to the smoke box through the sampling tube from the opening of the cabin wall.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (6)
1. A method for testing a cargo compartment smoke detection system, comprising the steps of:
the method comprises the following steps of firstly, manufacturing a test tool, wherein the test tool comprises a smoke cavity body, a pressure cavity body and a smoke reagent tank, the smoke cavity body is of a structure penetrating through the smoke cavity body from top to bottom and comprises a first smoke cavity, a second smoke cavity and a third smoke cavity from top to bottom, the diameter of the first smoke cavity is larger than that of the third smoke cavity and larger than that of the second smoke cavity, the pressure cavity body is of a structure penetrating through the pressure cavity body from top to bottom and comprises a placing cavity and a conducting cavity from top to bottom, external threads are arranged on the outer side wall of the placing cavity, internal threads matched with the external threads are arranged on the inner side wall of the third smoke cavity, the smoke reagent tank comprises a tank body and a tank neck, the tank body is placed in the placing cavity, the tank neck is placed in the second smoke cavity, and the;
step two, the end part of the first smoke cavity is buckled on a bulkhead to form a closed area with the bulkhead, a bulkhead opening is formed in the bulkhead in the closed area, the pressure cavity body is rotated in the forward direction, and the second pressure cavity extrudes the tank body to release smoke;
and step three, reversely selecting and installing the pressure cavity, so that the conducting cavity is communicated with the first smoke cavity, and the smoke is conveyed to the smoke box through the sampling pipe from the opening of the cabin wall.
2. The method of claim 1, wherein a rubber gasket is disposed at an end of the first smoke chamber that contacts the bulkhead.
3. A method of testing a cargo compartment smoke detection system according to claim 1 wherein the diameter of said holding chamber is greater than the diameter of said canister.
4. The test method for the smoke detection system of the cargo hold according to claim 1, wherein a pressing plate is arranged at one end of the second smoke chamber, which is communicated with the third smoke chamber, a pressing hole is formed in the pressing plate, and the diameter of the pressing hole is larger than the diameter of the tank neck and smaller than the diameter of the tank body.
5. The method of claim 1, wherein the smoke chamber and the pressure chamber are made of nylon.
6. A method as claimed in claim 1 wherein the depth of said third smoke chamber is 68mm and the length of said external thread is 44 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436573.4A CN111784957A (en) | 2020-05-21 | 2020-05-21 | Cargo compartment smoke detection system testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436573.4A CN111784957A (en) | 2020-05-21 | 2020-05-21 | Cargo compartment smoke detection system testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111784957A true CN111784957A (en) | 2020-10-16 |
Family
ID=72754197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436573.4A Pending CN111784957A (en) | 2020-05-21 | 2020-05-21 | Cargo compartment smoke detection system testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111784957A (en) |
-
2020
- 2020-05-21 CN CN202010436573.4A patent/CN111784957A/en active Pending
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