CN117267621A - Flow valve type decontamination metering device - Google Patents
Flow valve type decontamination metering device Download PDFInfo
- Publication number
- CN117267621A CN117267621A CN202311227066.XA CN202311227066A CN117267621A CN 117267621 A CN117267621 A CN 117267621A CN 202311227066 A CN202311227066 A CN 202311227066A CN 117267621 A CN117267621 A CN 117267621A
- Authority
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- China
- Prior art keywords
- valve
- pipeline
- decontamination
- flow
- input pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005202 decontamination Methods 0.000 title claims abstract description 52
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 239000010865 sewage Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a flow valve type decontamination metering device, which comprises a bottom plate, wherein an input pipeline, an output pipeline and a metering assembly control box are arranged on the bottom plate, a dynamic flow balance valve is arranged at the joint of the input pipeline and the output pipeline, one end of the input pipeline is an inlet and is used for flowing a decontamination agent into the decontamination metering device, and the other end of the output pipeline is an outlet and is used for conveying the metered decontamination agent out; the input pipeline is provided with an electric valve, a pressure gauge and a pressure reducing valve in sequence from one end of the inlet to the other end, and the output pipeline is provided with a flowmeter; the input pipeline and the output pipeline are vertically provided with test branches, and the test branches on the input pipeline are positioned between the pressure gauge and the pressure reducing valve. The pressure reducing valve 9 is used for reducing the pressure of the decontaminating agent in the conveying loop pipe to be 0-0.4 MPa higher than the set pressure of the fire water pipeline, so that under the steady flow action of the dynamic flow balance valve 14, the flow of the decontaminating agent output by the metering assembly is always stable despite the fluctuation of a certain range of pressure difference between the decontaminating agent conveying loop pipe and the fire water pipe.
Description
Technical Field
The invention relates to the technical field of fire extinguishers, in particular to a flow valve type decontamination metering device.
Background
The traditional decontamination system design scheme is to arrange a total decontamination agent storage tank, and arrange decontamination metering stations near each protection area, and the decontamination metering stations are connected through pipelines. The metering station mainly comprises a decontaminating agent storage cabinet, a metering pump, a high-precision flowmeter, a control cabinet, a decontaminating agent pipeline, a water-decontaminating agent mixer, a control valve and the like. During decontamination operation, the decontamination agent storage tank conveys decontamination agent gas to the decontamination agent storage cabinets of all metering stations in a pressurized mode, the flowmeter measures water flow in the pipeline in real time, and the control box adjusts the rotating speed of the metering pump in real time according to the water flow of the pipeline, so that the output decontamination agent always forms a constant proportion of about 0.05% with the fire water flow.
One disadvantage of the conventional method is that the accurate proportioning of the decontamination mixture is achieved by the simultaneous action of the decontamination agent metering pump, the flow meter and the control system, the control process is complex, and the decontamination operation is difficult to develop under the condition that the decontamination metering station is powered off. Meanwhile, the decontamination metering station comprises more equipment and has larger weight, and the weight control of ships and the like is adversely affected.
Disclosure of Invention
The invention provides a flow valve type decontamination metering device for solving the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the flow valve type decontamination metering device comprises a bottom plate, wherein an input pipeline, an output pipeline and a metering assembly control box are arranged on the bottom plate, a dynamic flow balance valve is arranged at the joint of the input pipeline and the output pipeline, one end of the input pipeline is an inlet and is used for flowing a decontamination agent into the decontamination metering device, and the other end of the output pipeline is an outlet and is used for conveying the metered decontamination agent out;
the input pipeline is provided with an electric valve, a pressure gauge and a pressure reducing valve in sequence from one end of the inlet to the other end, and the output pipeline is provided with a flowmeter;
the input pipeline and the output pipeline are vertically provided with test branches, and the test branches on the input pipeline are positioned between the pressure gauge and the pressure reducing valve.
Preferably, the test branch comprises a test valve and a quick connector, wherein one end of the test valve is connected with an input pipeline or an output pipeline, and the other end of the test valve is connected with the quick connector.
Preferably, a base is arranged under the bottom plate, and a vibration isolator is arranged between the base and the bottom plate.
Preferably, one end of the input pipeline, which is close to the dynamic flow balance valve, is connected with a sewage drain pipeline. The drain pipe is provided with a ball valve for controlling the switch.
Preferably, the input pipeline is provided with a stop valve near the inlet and the output pipeline is provided with a stop valve near the outlet.
Preferably, the output pipeline is provided with an exhaust valve and a one-way valve.
Compared with the prior art, the invention has the beneficial effects that: the pressure reducing valve 9 is used for reducing the pressure of the decontaminating agent in the conveying loop pipe to be 0-0.4 MPa higher than the set pressure of the fire water pipeline, so that under the steady flow action of the dynamic flow balancing valve 14, the flow of the decontaminating agent output by the metering assembly is always stable despite the fluctuation of a certain range of pressure difference between the decontaminating agent conveying loop pipe and the fire water pipe.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The marks in the figure: inlet 1, stop valve 2, metering assembly control box 3, motorised valve 4, manometer 5, test branch 6, test valve 7, quick-operation joint 8, relief valve 9, isolator 10, blow off pipeline 12, ball valve 13, dynamic flow balance valve 14, flowmeter 17, discharge valve 22, check valve 23, decontamination metering assembly outlet 25, base 11, bottom plate 15.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The invention will be described in detail with reference to the drawings and examples.
Example 1
The flow valve type decontamination metering device is characterized in that an input pipeline, an output pipeline and a metering assembly control box 3 are arranged on a bottom plate 15, a dynamic flow balance valve 14 is arranged at the joint of the input pipeline and the output pipeline, one end of the input pipeline is an inlet 1 for a decontaminating agent to flow into the decontamination metering device, and the other end of the output pipeline is an outlet 25 for conveying the metered decontaminating agent out;
the input pipeline is provided with an electric valve 4, a pressure gauge 5 and a pressure reducing valve 9 in sequence from one end of the inlet 1 to the other end, and the output pipeline is provided with a flowmeter 17;
the input pipeline and the output pipeline are vertically provided with a test branch 6, and the test branch 6 on the input pipeline is positioned between the pressure gauge 5 and the pressure reducing valve 9.
The input pipeline is provided with an electric valve 4 which can be an electromagnetic valve or an electric ball valve from one end of the inlet 1 to the other end in sequence and is used for realizing remote control of the metering assembly. Meanwhile, the electric valve has a manual opening function, a pressure gauge 5 and a pressure reducing valve 9, and a flowmeter 17 is arranged on an output pipeline;
the input pipeline and the output pipeline are vertically provided with a test branch 6, and the test branch 6 on the input pipeline is positioned between the pressure gauge 4 and the pressure reducing valve 9;
the pressure reducing valve 9 is used for reducing the pressure of the decontaminant in the input pipeline to be 0-0.4 MPa higher than the set pressure of the fire water pipeline, so that under the steady flow action of the dynamic flow balancing valve 14, the flow of the decontaminant output by the metering assembly is always stable despite the fluctuation of a certain range of pressure difference between the input pipeline and the output pipeline.
The decontaminating agent with a certain concentration can be diluted into decontaminating mixed liquid with a concentration of 0.05-0.1%. The dynamic flow balance valve 14 can set a flow gear, can realize steady flow near the set flow gear value in the range of 0-0.4 MPa of pressure difference, and can form decontamination mixed liquid in the concentration range of 0.05-0.1% after a certain concentration of decontamination agent is mixed with the fire-fighting water with the set flow.
In this embodiment, the test branch 6 includes a test valve 7 and a quick connector 8, one end of the test valve 7 is connected with an input pipeline or an output pipeline, and the other end is connected with the quick connector 8.
In the embodiment, a base 11 is arranged below a bottom plate 15, and a vibration isolator 10 is arranged between the base 11 and the bottom plate 15;
the vibration isolator 10 and the base 11 are arranged, so that the influence of external impact, vibration, jolt and the like on the decontamination metering assembly can be effectively reduced, and the vibration resistance and the impact resistance of the decontamination metering assembly can be increased. The GH series steel wire rope vibration isolator is selected by the metering assembly, has the characteristics of variable damping and variable rigidity, and has low transmission rate and excellent vibration isolation and buffering performance.
In this embodiment, one end of the input pipeline, which is close to the dynamic flow balance valve 14, is connected with a drain pipeline 12, and a ball valve 13 for controlling the switch is arranged on the drain pipeline 12.
In this embodiment, the inlet pipe is provided with a shut-off valve 2 near the inlet 1 and the outlet pipe is provided with a shut-off valve near the outlet 25.
In this embodiment, the output pipe is provided with an exhaust valve 22 and a check valve 23.
Working principle: after the device is opened, the electric valve 4 of the decontaminating agent metering assembly is opened in an electric control mode, a decontaminating agent with a certain concentration enters the decontaminating agent metering assembly through an input pipeline, the exhaust valve 22 at the tail end of the metering assembly automatically opens exhaust, then the opening of the pressure reducing valve 9 and the dynamic flow balance valve 14 is regulated, the flow range of the outlet of the decontaminating agent metering assembly is regulated to a target area, and finally the decontaminating agent enters an output pipeline to finish mixing dilution of the decontaminating agent. The front end of the decontamination metering assembly is provided with the tail end of the stop valve 2, so that the maintenance is convenient, and the tail end is provided with the one-way valve 23 for preventing fire water from entering the decontamination metering assembly.
When the decontamination operation is carried out, after the pump 28 of the conveying device is started, the electric valve 4 of the decontamination agent metering assembly is opened in an electric control mode, and the decontamination agent enters the metering assembly through the conveying pipeline 27. When the decontamination operation is carried out, the conveying device can be connected with a plurality of decontamination metering assemblies in a butt joint mode, the metering assemblies are connected in parallel, the decontamination metering assemblies can be started simultaneously, and the decontamination metering assemblies in specific areas can be selected to be started. The outlet in the decontamination metering assembly interfaces with a fire-hose line (not shown). When the decontaminating agent enters the metering assembly pipeline to reach the set pressure, the exhaust valve 22 at the tail end of the metering assembly automatically opens the exhaust to prevent the pressure in the decontaminating assembly pipeline from being too high, and then the metering assembly pipeline is filled with the decontaminating agent. The opening of the pressure reducing valve 9 is regulated to reduce the pressure of the decontaminating agent in the conveying loop pipe to be 0-0.4 MPa higher than the set pressure of the fire-fighting water pipeline; and then the dynamic flow balance valve 14 is regulated, the flow gear is set, the steady flow is realized near the set flow gear value, the constant flow of the decontaminating agent output by the metering assembly is ensured, the flow data can be read out on the flowmeter 17 and can be sent to the decontaminating metering assembly electric control box 3, and the pressure data can be read out through the pressure gauge 5 on the assembly. The fire-fighting agent metering assembly is provided with a ball valve or stop valve 2 at the head and tail end for isolating the metering assembly from the fire-fighting agent collar and fire-fighting water piping if necessary (e.g. for maintenance). The end is provided with a one-way valve 23 preventing seawater from entering the disinfectant metering assembly. The measuring assembly is provided with the test branch 6, the daily maintenance test function of the measuring assembly is realized, the interface is provided with the test valve 7, and the flow of the decontamination measuring assembly is tested through the test branch so as to detect the difference between the flow data and the actual data of the measuring assembly and ensure the accuracy of the flow of the decontamination measuring assembly. After the decontamination operation is completed, the decontaminating agent remains in the ring pipe, corrosion damage is caused to equipment and pipelines, and the decontaminating agent remaining in the pipeline of the metering assembly can be discharged by manually opening the ball valve 13 on the sewage pipeline 12.
The electric valve 4 can be controlled to be opened and closed by the electric control box 3, can be manually controlled to be opened and closed, and can also be used for carrying out decontamination operation under the condition of regional power failure if necessary
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the patent and scope of the invention should be pointed out with reference to the appended claims.
Claims (6)
1. Flow valve formula decontaminates metering device, including bottom plate (15), its characterized in that: an input pipeline, an output pipeline and a metering assembly control box (3) are arranged on the bottom plate (15), a dynamic flow balance valve (14) is arranged at the joint of the input pipeline and the output pipeline, one end of the input pipeline is an inlet (1) for the decontaminating agent to flow into the decontaminating metering device, and the other end of the output pipeline is an outlet (25) for conveying the metered decontaminating agent out;
the electric valve (4), the pressure gauge (5) and the pressure reducing valve (9) are sequentially arranged on the input pipeline from one end of the inlet (1) to the other end of the inlet, and the flowmeter (17) is arranged on the output pipeline;
the test branch circuits (6) are vertically arranged on the input pipeline and the output pipeline, and the test branch circuits (6) on the input pipeline are positioned between the pressure gauge (5) and the pressure reducing valve (9).
2. A flow valve decontamination metering device in accordance with claim 1, wherein: the test branch circuit (6) comprises a test valve (7) and a quick connector (8), wherein one end of the test valve (7) is connected with an input pipeline or an output pipeline, and the other end of the test valve is connected with the quick connector (8).
3. A flow valve decontamination metering device in accordance with claim 1, wherein: a base (11) is arranged below the bottom plate (15), and a vibration isolator (10) is arranged between the base (11) and the bottom plate (15).
4. A flow valve decontamination metering device in accordance with claim 1, wherein: one end of the input pipeline, which is close to the dynamic flow balance valve (14), is connected with a sewage drain pipeline (12). A ball valve (13) for controlling the switch is arranged on the sewage discharge pipeline (12).
5. A flow valve decontamination metering device in accordance with claim 4, wherein: and a stop valve (2) is arranged at the position of the input pipeline close to the inlet (1) and the position of the output pipeline close to the outlet (25).
6. A flow valve decontamination metering device in accordance with claim 2, wherein: an exhaust valve (22) and a one-way valve (23) are arranged on the output pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311227066.XA CN117267621A (en) | 2023-09-22 | 2023-09-22 | Flow valve type decontamination metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311227066.XA CN117267621A (en) | 2023-09-22 | 2023-09-22 | Flow valve type decontamination metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117267621A true CN117267621A (en) | 2023-12-22 |
Family
ID=89200339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311227066.XA Pending CN117267621A (en) | 2023-09-22 | 2023-09-22 | Flow valve type decontamination metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117267621A (en) |
-
2023
- 2023-09-22 CN CN202311227066.XA patent/CN117267621A/en active Pending
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