Decontamination system
Through a two-stage proportional mixing structure and a mechanically designed detergent ratio device, the problems of complex control and difficulty in using traditional detergent system are solved, and the precise ratio of detergent and seawater in different scenarios are realized. Reduces equipment weight and control difficulty.
Patent Information
- Application Number
- CN202411360153.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2024-12-17
AI Technical Summary
The traditional detergent system has a complicated control process when achieving the precise proportion of detergent liquid, and it is difficult to carry out detergent operations in the event of power loss. The large weight of the equipment is not conducive to the weight control of ships and other ships.
The detergent ratio device adopts a two-stage proportional mixed structure, including manual valves and solenoid valves, and replaces the metering pump and flow feedback device through mechanical structure to ensure that about 5% of ten thousand can be washed in the event of power loss. Mix the digestive fluid with seawater ratio.
It simplifies the difficulty of control, reduces the weight of the equipment, and ensures that the ratio of detergent liquid and seawater can be accurately mixed in different application scenarios. It is suitable for various scenarios, including detergent operations in the event of power loss.
Smart Images
Figure CN119139954A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of fire fighting technology, and in particular to a decontamination system. Background Art
[0002] The traditional design of the decontamination system is to set up a total decontamination liquid storage tank and a decontamination metering station near each protected area, and the two are connected by pipelines. The metering station is mainly composed of a decontamination liquid storage cabinet, a metering pump, a high-precision flow meter, a control cabinet, a decontamination liquid pipeline, a water-decontamination liquid mixer and a control valve. During the decontamination operation, the decontamination liquid storage tank will pressurize the decontamination liquid to the decontamination liquid storage cabinet of each metering station. The flow meter measures the water flow in the pipeline in real time. The control box adjusts the metering pump speed in real time according to the pipeline water flow, so that the output decontamination liquid is always in a constant ratio of about 0.05% to the fire water flow.
[0003] One drawback of the traditional method is that the precise proportion of the disinfection mixture requires the disinfection liquid metering pump, flow meter and control system to work together to achieve it. The control process is complicated, and in the event of a power failure at the disinfection metering station, the disinfection operation will be difficult to carry out. At the same time, the disinfection metering station contains a lot of equipment and is heavy, which has an adverse effect on the weight control of ships, etc. Summary of the invention
[0004] In order to solve the above-mentioned deficiencies of the prior art, the present invention proposes a decontamination system In order to solve the above technical problems, the present invention adopts the following technical solutions: a decontamination system, including a decontamination liquid storage device, a decontamination liquid proportioning device and a fire water device, the decontamination liquid storage device is connected to the decontamination liquid proportioning device through a pipeline, the decontamination liquid proportioning device is connected to the fire water device through a pipeline, the decontamination liquid proportioning device includes a valve, a first-stage proportional mixer and a second-stage proportional mixer, the valve is connected to the first-stage proportional mixer through a pipeline, the first-stage proportional mixer and the second-stage proportional mixer are connected through a pipeline, the valve includes a manual valve and a solenoid valve, the two of which are connected in parallel with the first-stage proportional mixer, the fire water device includes a first electric butterfly valve and a second electric butterfly valve, the first electric butterfly valve, the second-stage proportional mixer, and the second electric butterfly valve are on the same horizontal line and are connected in sequence through pipelines, the first electric butterfly valve and the first-stage proportional mixer are connected through a pipeline, and the first-stage proportional mixer and the second electric butterfly valve are connected through a pipeline.
[0005] A design of a cleaning liquid proportioning device, which is a mechanical structure, does not contain a metering pump and a flow feedback device, has a two-stage proportional mixing structure, and the two-stage proportional mixer adopts a series structure. Fire water and cleaning liquid are mixed in proportion in the first-stage proportional mixer to form a cleaning liquid with a mixing ratio of 1% to 3%, and all enter the cleaning liquid inlet of the second-stage proportional mixer through the outlet pipe of the first-stage proportional mixer, and are mixed with fire water in the second-stage proportional mixer at a ratio of 1% to 3%, finally forming a cleaning liquid with a concentration of about 0.5 parts per million.
[0006] Preferably, the cleaning liquid storage device includes a liquid filling port, a pressure-holding valve, a discharge valve, a power pump, a filter, a one-way valve, an electric butterfly valve and a storage cabinet, and the liquid filling port, the pressure-holding valve, the discharge valve and the filter are respectively connected to the storage cabinet through pipelines.
[0007] Preferably, the filter is connected to the power pump through a pipeline, the power pump is connected to the one-way valve through a pipeline, the one-way valve is connected to the electric butterfly valve through a pipeline, and a pressure-holding valve is also connected between the one-way valve and the electric butterfly valve through a pipeline.
[0008] Preferably, the cleaning liquid storage device includes a pneumatic butterfly valve, a cleaning liquid storage tank, a safety valve, a second pressure reducing valve, a container valve, an external gas storage container and a release valve. The safety valve, the pressure reducing valve, the pneumatic butterfly valve and the release valve are respectively connected to the cleaning liquid storage tank through pipelines, and the external gas storage container and the container valve are connected to the pressure reducing valve through pipelines in turn. The container valve can be as follows Figure 3 The structure shown is two parallel structures connected to the external gas storage container and the second pressure reducing valve respectively, or it can be one, which can be selected according to actual conditions, and the present invention does not limit it.
[0009] Preferably, a first pressure reducing valve is further provided between the ball valve and the first-stage proportioning mixer.
[0010] Compared with the prior art, the present invention has the following beneficial effects: the operating state is adjusted according to different actual application scenarios; the two-stage disinfection proportioning units do not have electric proportioning devices such as metering pumps; the pipeline control valve can also be set to manual mode; disinfection operations can be carried out when power is lost in a partition if necessary; mechanical components are used instead of electrical control components to reduce the control difficulty; and in the event of power failure in the proportion mixing area, a proportion of about 0.5 ten-thousandths of disinfectant liquid and seawater can be mixed more accurately. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic diagram of the first operating state of the decontamination system; Figure 2 This is a schematic diagram of the operation status of the decontamination system using a pump delivery method; Figure 3This is a schematic diagram of the operating status of the decontamination system using pneumatic delivery.
[0012] In the figure: 1. Decontamination liquid storage device, 3. Solenoid valve, 4. Manual ball valve, 5. First-stage proportion mixer, 6. First pressure reducing valve, 7. Second-stage proportion mixer, 8. First electric butterfly valve, 9. Second electric butterfly valve, 11. Liquid filling port, 12. Pressure holding valve, 13. Discharge valve, 14. Power pump, 15. Filter, 16. Check valve, 24. Storage cabinet, 28. Pneumatic butterfly valve, 29. Decontamination liquid storage tank, 30. Safety valve, 31. Second pressure reducing valve, 32. Container valve, 33. External gas storage container. DETAILED DESCRIPTION
[0013] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0014] The invention is described in detail below with reference to the accompanying drawings and embodiments. Example
[0015] like Figure 1As shown, a decontamination system includes a decontamination liquid storage device 1, a decontamination liquid proportioning device and a fire water device. The decontamination liquid storage device 1 is connected to the decontamination liquid proportioning device through a pipeline, and the decontamination liquid proportioning device is connected to the fire water device through a pipeline. The decontamination liquid proportioning device includes a valve, a first-stage proportion mixer 5 and a second-stage proportion mixer 7. The valve is connected to the first-stage proportion mixer 5 through a pipeline, and the first-stage proportion mixer 5 and the second-stage proportion mixer 7 are connected through a pipeline. The valve includes a manual valve 4 and a solenoid valve 3, which are connected in parallel with the first-stage proportion mixer 5. The fire water device includes a first electric butterfly valve 8 and a second electric butterfly valve 9. The first electric butterfly valve 8, the second-stage proportion mixer 7, and the second electric butterfly valve 9 are on the same horizontal line and are connected in sequence through pipelines. The first electric butterfly valve 8 and the first-stage proportion mixer The first-stage proportioning mixer 5 and the second electric butterfly valve 9 are connected by a pipeline. A first pressure reducing valve 6 is also arranged between the ball valve and the first-stage proportioning mixer 5. The cleaning liquid storage device 1 in this embodiment is only a storage container, which can be a storage box or a storage tank. In this embodiment, the operating state is suitable for a mobile or portable system. Therefore, in this embodiment, the cleaning liquid storage device 1 and the cleaning liquid proportioning device are both simplified versions. The cleaning liquid is stored in a normal pressure container. During the cleaning operation, the proportioning device sucks the cleaning liquid into the first-stage proportioning mixer 5 and further mixes it in the second-stage proportioning mixer 7. The second-stage proportioning mixer 7 can be a pressure-type proportioning mixer or a balanced proportioning mixer. The pipeline-type proportioning mixer, pressure-type proportioning mixer and balanced proportioning mixer mentioned above all adopt the Venturi working principle. A branch pipe is separated from the main fire water pipe flowing through the second-stage proportioning mixer, and the first-stage proportioning mixer is installed on the branch pipe. A pipeline connects the decontamination liquid container and the negative pressure port of the negative pressure proportioning mixer of the first-stage proportioning mixer, and the outlet of the first-stage proportioning mixer is connected to the decontamination liquid inlet of the second-stage pressure proportioning mixer and the balanced proportioning mixer. When the system carries out decontamination operations, after the fire water flows through the first-stage negative pressure proportioning mixer, a negative pressure is formed in the negative pressure chamber, and the decontamination liquid is sucked from the storage container into the first-stage negative pressure proportioning mixer, mixed with the fire water to form a first-stage decontamination mixed liquid, and enters the second-stage proportioning mixer along the pipeline. The second-stage pressure proportioning mixer and the balanced proportioning mixer are designed with a shrinkage hole structure at the fire water inlet part, and the cross-sectional area of the flow channel is reduced to form a negative pressure environment in the mixing chamber of the proportioning mixer, which is conducive to the first-stage decontamination mixed liquid being sucked into the mixing chamber, and the fire water and the first-stage decontamination mixed liquid are mixed again to form a second-stage concentration decontamination mixed liquid of the target concentration. When designing the structure of the second-stage proportional mixer, the negative pressure value is required to be greater than the fire water head loss generated by the first-stage pipeline proportional mixing, usually ≥0.2MPa. The concentration of the two-stage decontamination mixed liquid is determined by the fire water inlet diameter of the two-stage proportional mixer and the cross-sectional area of the orifice plate of the decontamination liquid inlet.
[0016] In this embodiment, a first pressure reducing valve 6 is further provided between the ball valve and the first-stage proportioning mixer 5 . Example
[0017] like Figure 2 As shown, based on the embodiment 1, the cleaning liquid storage device 1 includes a liquid filling port 11, a pressure-holding valve 12, a discharge valve 13, a power pump 14, a filter 15, a one-way valve 16, an electric butterfly valve and a storage cabinet 24. The liquid filling port 11, the pressure-holding valve 12, the discharge valve 13 and the filter 15 are respectively connected to the storage cabinet 24 through pipelines, as shown in FIG. Figure 2 As shown, in actual use, a cleaning liquid storage device can be connected to multiple cleaning liquid proportioning devices and fire water devices to increase the fire extinguishing path.
[0018] In this embodiment, the filter 15 is connected to the power pump 14 through a pipeline, the power pump 14 is connected to the one-way valve 16 through a pipeline, the one-way valve 16 is connected to the electric butterfly valve through a pipeline, and a pressure-holding valve 12 is also connected between the one-way valve 16 and the electric butterfly valve through a pipeline. The rest is consistent with Example 1, and is suitable for a fixed disinfection system. In this design scheme, the disinfection liquid proportioning device is also a two-stage proportional mixing structure, but the first-stage proportion mixer is a balanced proportion mixer, and the second-stage proportion mixer is a pressure-type proportion mixer or a balanced proportion mixer. The installation method of the two-stage proportion mixer is consistent with the previous scheme, and the working principle is the Venturi principle. The pressure-holding disinfection liquid in the fixed pipe network enters the first-stage balanced proportion mixer of the disinfection liquid proportioning device after the pressure is adjusted by the branch pipe pressure reducing valve. The balanced proportioning mixer is arranged on the balancing valve. One branch of the balancing valve introduces pressure from the fire water branch, and the other branch introduces pressure from the pipeline between the decontamination liquid input branch pressure reducing valve and the balanced proportioning mixer. The two pressures are balanced in the balancing valve, and the flow channel cross-sectional area is adjusted by the movable valve block to adjust the flow of the decontamination liquid or premixed liquid entering the first-stage balanced proportioning mixer, and always maintain a certain concentration within the range of 0.5% to 6% with the fire water, such as 3%. After the decontamination liquid and the fire water are mixed in the first-stage balanced proportioning mixer to form the first-stage mixed liquid, they enter the second-stage balanced or pressure-type proportioning mixer along the pipeline. The working principle of this part is consistent with the second-stage proportioning part in Example 1, and the negative pressure formed by the contraction of the flow channel is greater than the fire water head loss generated by the first-stage pipeline proportioning, which is usually required to be ≥0.2MPa. Similarly, the total decontamination mixed liquid is determined by the product of the concentrations of the two-stage mixed liquids, and the concentration of the two-stage decontamination mixed liquid is determined by the fire water inlet diameter and the decontamination liquid inlet orifice plate diameter cross-sectional area of the two-stage proportioning mixer. Example
[0019] like Figure 3As shown, based on the embodiment 1, the cleaning liquid storage device 1 includes a pneumatic butterfly valve 28, a cleaning liquid storage tank 29, a safety valve 30, a second pressure reducing valve 31, a container valve 32, an external gas storage container 33 and a discharge valve 13. The safety valve 30, the pressure reducing valve 21, the pneumatic butterfly valve 28 and the discharge valve 13 are respectively connected to the cleaning liquid storage tank 29 through pipelines, and the external gas storage container 33 and the container valve 32 are connected to the pressure reducing valve 21 through pipelines in turn. The container valve 32 can be as shown in FIG. Figure 3 The structure shown is two parallel structures connected to the external gas storage container 33 and the second pressure reducing valve 31 respectively, or it can be one, which can be selected according to actual conditions and is not limited by the present invention.
[0020] Those skilled in the art can flexibly select and design according to needs, and are not limited thereto.
[0021] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.
[0022] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the patent and protection scope of the present invention shall be subject to the attached claims.
Claims
1. A decontamination system, Features: The invention comprises a cleaning liquid storage device (1), a cleaning liquid proportioning device and a fire water device, wherein the cleaning liquid storage device (1) is connected to the cleaning liquid proportioning device via a pipeline, the cleaning liquid proportioning device is connected to the fire water device via a pipeline, the cleaning liquid proportioning device comprises a valve, a first-stage proportioning mixer (5) and a second-stage proportioning mixer (7), the valve is connected to the first-stage proportioning mixer (5) via a pipeline, the first-stage proportioning mixer (5) and the second-stage proportioning mixer (7) are connected via a pipeline, the valve The fire water device comprises a manual valve (4) and a solenoid valve (3), which are connected in parallel to a first-stage proportional mixer (5). The fire water device comprises a first electric butterfly valve (8) and a second electric butterfly valve (9). The first electric butterfly valve (8), the second-stage proportional mixer (7), and the second electric butterfly valve (9) are located on the same horizontal line and are connected in sequence through pipelines. The first electric butterfly valve (8) and the first-stage proportional mixer (5) are connected through the pipeline, and the first-stage proportional mixer (5) and the second electric butterfly valve (9) are connected through the pipeline.
2. A decontamination system according to claim 1, Features: The cleaning liquid storage device (1) comprises a liquid filling port (11), a pressure-holding valve (12), a discharge valve (13), a power pump (14), a filter (15), a one-way valve (16), an electric butterfly valve and a storage cabinet (24); the liquid filling port (11), the pressure-holding valve (12), the discharge valve (13) and the filter (15) are respectively connected to the storage cabinet (24) via pipelines.
3. A decontamination system as claimed in claim 2, Features: The filter (15) is connected to the power pump (14) via a pipeline, the power pump (14) is connected to the one-way valve (16) via a pipeline, the one-way valve (16) is connected to the electric butterfly valve via a pipeline, and a pressure-holding valve (12) is also connected between the one-way valve (16) and the electric butterfly valve via a pipeline.
4. A decontamination system as claimed in claim 1, Features: The cleaning liquid storage device (1) comprises a pneumatic butterfly valve (28), a cleaning liquid storage tank (29), a safety valve (30), a second pressure reducing valve (31), a container valve (32), an external gas storage container (33) and a discharge valve (13); the safety valve (30), the pressure reducing valve (21), the pneumatic butterfly valve (28) and the discharge valve (13) are respectively connected to the cleaning liquid storage tank (29) via pipelines, and the external gas storage container (33) and the container valve (32) are connected to the pressure reducing valve (21) via pipelines in turn.
5. A decontamination system as claimed in claim 1, Features: A first pressure reducing valve (6) is also provided between the ball valve and the first-stage proportioning mixer (5).