Semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents

Abstract

The invention is applicable to the field of nuclear and hazardous chemical accident emergency, and discloses a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination sprayer which comprises a nozzle for spraying a decontamination agent diluent, a body connected with the nozzle, and a connector arranged on the body and used for being connected with a water supply pipeline. The body comprises a decontaminant inlet and a hot water inlet which are respectively formed in the body and are communicated with the interior of the body; the body further comprises a driving wheel which is arranged in the body and located in the water inlet direction of the water supply pipeline, a transmission assembly connected with the driving wheel, and a first piston which is used for sucking the decontaminating agent and is driven by the transmission assembly to reciprocate at the decontaminating agent inlet. And the second piston is used for sucking hot water and is driven by the transmission assembly to reciprocate at the hot water inlet, and the first piston and the second piston synchronously and periodically move and / or asynchronously and periodically move.

Description

Technical Field

[0001] The invention relates to the field of nuclear and hazardous chemical accident emergency response, and in particular to a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle. Background Art

[0002] In recent years, my country's nuclear power industry has developed rapidly, and the development, sales and use of chemicals worldwide have continued to increase every year. In the case of nuclear and hazardous chemical accidents, radioactive substances and leaked hazardous chemicals are likely to cause harm to the public. In order to prevent the uncontrolled spread of radioactive substances and hazardous chemicals and continue to cause harm to the public, it is necessary to immediately carry out large-scale emergency decontamination and disinfection for personnel who have been contaminated by leaked substances. When personnel are undergoing large-scale decontamination and disinfection, they should first use a certain concentration of decontamination agent according to the type of contamination, and then rinse with clean water. Under low temperature conditions, warm water is also required for large-scale decontamination and disinfection of personnel. Existing research mainly focuses on large-scale integrated decontamination facilities for personnel, which require energy drive, high emergency capacity maintenance and daily maintenance costs, poor mobility and transfer capabilities under nuclear and hazardous chemical accident conditions, and cannot quickly switch the type of decontamination agent, adjust the dosage and control the mixing ratio of decontamination agent and warm water according to the characteristics of personnel contamination, and adjust the spraying cycle of decontamination agent and clean water. It is difficult to meet the needs of large-scale decontamination and disinfection in the case of nuclear and hazardous chemical accidents. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents.

[0004] The technical solution adopted by the present invention to solve its technical problems is: constructing a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle, including: a nozzle for spraying a decontamination agent dilution liquid, a body connected to the nozzle, and a joint arranged on the body for connecting a water supply pipe; the body includes a decontamination agent inlet and a hot water inlet respectively arranged on the body and connected to the inside of the body; wherein the body also includes a driving wheel arranged in the body and located in the water inlet direction of the water supply pipe, a transmission assembly connected to the driving wheel, a first piston for sucking decontamination agent and reciprocating at the decontamination agent inlet driven by the transmission assembly, and a second piston for sucking hot water and reciprocating at the hot water inlet driven by the transmission assembly, the first piston and the second piston moving periodically synchronously, and or moving periodically asynchronously.

[0005] In some embodiments, the transmission assembly includes two transmission gear groups respectively arranged at both ends of the driving wheel, a first crank-connecting rod assembly and a second crank-connecting rod assembly respectively rotatably connected to the transmission gear groups, the first piston movably connected to the first crank-connecting rod assembly, and the second piston movably connected to the second crank-connecting rod assembly.

[0006] In some embodiments, the transmission gear set is a planetary gear set, which includes a driving gear connected to the driving wheel, three planetary gears meshing with the driving gear, a ring gear meshing with the planetary gears, and a gear rack rotatably connected to the central axes of the three planetary gears.

[0007] In some embodiments, the first crank-connecting rod assembly includes a first crank member connected to the gear frame, a first connecting rod member rotatably connected to the first crank member and connected to the first piston, and the second crank-connecting rod assembly includes a second crank member connected to the gear frame, a second connecting rod member rotatably connected to the second crank member and connected to the second piston.

[0008] In some embodiments, the first piston and the second piston are provided with a liquid inlet hole on the end away from the driving wheel, and the first piston and the second piston are provided with a liquid outlet hole on the inner wall of the disinfectant inlet and the hot water inlet, the liquid outlet hole is close to one end of the driving wheel, and the liquid inlet hole and the liquid outlet hole are connected.

[0009] In some embodiments, a conical water outlet is provided at the joint, and the water outlet direction of the conical water outlet is toward the driving wheel.

[0010] In some embodiments, a shower outlet is provided at the water outlet end of the nozzle, one end of the shower outlet is connected to the water outlet end of the nozzle, and the other end of the shower outlet is provided with a plurality of through holes.

[0011] In some embodiments, the body is provided with an internal thread at a connection with the nozzle, and the nozzle is threadedly connected to the body.

[0012] In some embodiments, the disinfectant inlet is connected to a disinfectant storage container containing disinfectant through a pipeline.

[0013] In some embodiments, the hot water inlet is connected to a hot water container filled with hot water through a pipe.

[0014] The implementation of the semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents of the present invention has the following beneficial effects: a high-speed water flow is input at the joint to drive the driving wheel to rotate, the driving wheel drives the transmission component to move, the transmission component drives the first piston to move back and forth in the decontamination agent inlet, so that the decontamination agent in the decontamination agent inlet is periodically introduced into the nozzle, the transmission component drives the second piston to move back and forth in the hot water inlet, so that the hot water in the hot water inlet and the decontamination agent in the decontamination agent inlet are periodically sucked into the nozzle, and no power is required for the whole mixing process, and the mixing cycle of the decontamination agent and the warm water can be adjusted by adjusting the gear ratio relationship of the gear set to achieve periodic spraying of the decontamination agent and the hot water under different decontamination and decontamination requirements, and the warm water or the decontamination agent dilution liquid is output for large-scale emergency decontamination and decontamination of different types of contaminated personnel in the case of nuclear and hazardous chemical accidents, and the work will not stop due to lack of power, and there is no need to manually add and dilute the warm water and the decontamination agent after deployment, and there is no need to frequently switch and adjust the concentration of the decontamination agent according to the decontamination requirements, the reliability is extremely high, and the structure is simple and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 It is an overall diagram of a semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents in one embodiment of the present invention;

[0017] Figure 2 It is an exploded view of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention;

[0018] Figure 3 It is a cross-sectional view of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention;

[0019] Figure 4 It is a nozzle internal structure diagram of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention;

[0020] Figure 5 It is a structural diagram of a first crank-connecting rod assembly of an upper shield assembly of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention;

[0021] Figure 6It is a structural diagram of a transmission gear set of a lower shielding assembly of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention;

[0022] Figure 7 It is a structural diagram of a shower water outlet component of a lower shielding assembly of a semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle in one embodiment of the present invention.

[0023] Reference numerals

[0024] 100, disinfection nozzle; 110, nozzle; 111, shower outlet; 112, through hole; 120, body; 121, joint; 122, disinfectant inlet; 123, hot water inlet; 130, conical outlet; 200, driving wheel; 210, transmission gear set; 211, driving gear; 212, planetary gear; 213, gear ring; 214, gear rack; 300, first crank connecting rod assembly; 3 01. Second crank-connecting rod assembly; 310. First crank member; 320. First connecting rod member; 330. First piston; 340. Second crank member; 350. Second connecting rod member; 360. Second piston; 400. Decontaminant storage container; 410. Decontaminant main inlet; 420. Decontaminant quick-release interface; 500. Hot water container; 510. Water inlet; 520. Hot water quick-release interface; 600. Connecting assembly. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0026] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Figures 1 to 7 A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents in one embodiment of the present invention is shown. The semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents can be used to decontaminate personnel and objects when a nuclear leak occurs inside a nuclear power plant. The nozzle may include a nozzle 110 for spraying a decontamination agent dilution liquid, a body 120 connected to the nozzle 110, a joint 121 arranged on the body 120 for connecting a water supply pipe, a decontamination agent inlet 122 and a hot water inlet 123 respectively arranged on the body 120 and connected to the inside of the body 120, a driving wheel 200 arranged in the body 120 and located in the water inlet direction of the water supply pipe, a transmission assembly connected to the driving wheel 200, a first piston 330 for sucking decontamination agent and reciprocating at the decontamination agent inlet 122 driven by the transmission assembly, and a second piston 360 for sucking hot water and reciprocating at the hot water inlet 123 driven by the transmission assembly, wherein the first piston 330 and the second piston 360 move periodically synchronously or asynchronously.

[0028] The high-speed water flow input at the joint 121 drives the driving wheel 200 to rotate, and the driving wheel 200 drives the transmission component to move. The transmission component drives the first piston 330 to move back and forth in the detergent inlet 122, so that the detergent in the detergent inlet 122 periodically enters the interior of the nozzle. The transmission component drives the second piston 360 to move back and forth in the hot water inlet 123, so that the hot water in the hot water inlet 123 and the detergent in the detergent inlet 122 are periodically sucked into the interior of the nozzle. No power is required for the whole mixing process. The mixing cycle of the detergent and warm water can be adjusted by adjusting the gear ratio of the gear set to achieve periodic spraying of the detergent and hot water under different decontamination requirements. The warm water or the detergent dilution liquid is output for large-scale emergency decontamination and decontamination of different types of contaminated personnel in the event of nuclear and hazardous chemical accidents. It will not stop working due to lack of power. After deployment, there is no need to manually add and dilute warm water and detergent, and there is no need to frequently switch and adjust the detergent concentration according to the decontamination requirements. The reliability is extremely high, and the structure is simple and easy to maintain. In a specific embodiment, the driving wheel 200 is an impeller, and the impeller can be effectively driven by high-speed water flow.

[0029] In a specific embodiment, the connector 121 is an inner-buckle fire connector 121, which is convenient for direct connection to a fire water source. The water pressure of a normal fire water source is not connected to other facilities in the nuclear power plant, which can ensure that high-pressure liquid can be supplied immediately when an accident occurs.

[0030] Figure 4 and Figure 6 The transmission assembly shown in one embodiment may include the transmission assembly including two transmission gear sets 210 respectively arranged at both ends of the driving wheel 200, a first crank-connecting rod assembly 300 and a second crank-connecting rod assembly 301 respectively rotatably connected to the transmission gear sets 210, the first piston 330 movably connected to the first crank-connecting rod assembly 300, and the second piston 360 movably connected to the second crank-connecting rod assembly 301.

[0031] In a specific embodiment, the transmission gear set can also use other gears for transmission, such as a rack and pinion transmission, a gear set formed by a combination of several gears, etc.

[0032] It is understandable that the transmission gear set 210, the first crank-connecting rod assembly 300 and the second crank-connecting rod assembly 301 can be removed from the inside of the spray head 100. When other mixing ratios are required, the transmission ratio of the transmission gear set 210 can be adjusted to change the mixing ratio.

[0033] In a specific embodiment, the disinfectant inlet 122 and the hot water inlet 123 are respectively arranged on both sides of the nozzle 100, so that the transmission gear set 210 located at both ends of the driving wheel 200 can output power to the first piston 330 and the second piston 360.

[0034] In a specific embodiment, the rotation axes of the first crank-connecting rod assembly 300 and the second crank-connecting rod assembly 301 are respectively fixed on the inner wall of the spray head 100 .

[0035] Figure 4 and Figure 6 It is shown that the transmission gear set 210 may include a planetary gear set 212 in one embodiment, and the planetary gear set 212 includes a driving gear 211 connected to the driving wheel 200, three planetary gears 212 meshing with the driving gear 211, a gear ring 213 meshing with the planetary gear 212, and a gear rack 214 rotatably connected to the central axis of the three planetary gears 212. The rotational force generated by the high-speed water flow pushing the driving wheel 200 is small, and a large transmission ratio needs to be transmitted through the planetary gear set 212 to drive the first piston 330 and the second piston 360 to move. The planetary gear set 212 itself has a compact structure and does not need to be fixed on the inner wall of the nozzle 100 too much, and can be easily installed inside the nozzle 100.

[0036] Figure 4 and Figure 5 The first crank-connecting rod assembly 300 and the second crank-connecting rod assembly 301 may include, in one embodiment, the first crank-connecting rod assembly 300 including a first crank member 310 connected to the gear frame 214, a first connecting rod member 320 rotatably connected to the first crank member 310 and connected to the first piston 330, and the second crank-connecting rod assembly 301 including a second crank member 340 connected to the gear frame 214, a second connecting rod member 350 rotatably connected to the second crank member 340 and connected to the second piston 360. The first crank-connecting rod assembly 300 and the second crank-connecting rod assembly 301 convert the rotational motion into the reciprocating motion of the first piston 330 and the second piston 360 through the crank members.

[0037] Figure 5 The first piston 330 and the second piston 360 may include, in one embodiment, a liquid inlet hole provided at the end of the first piston 330 and the second piston 360 away from the driving wheel 200, and a liquid outlet hole provided at the inner wall of the first piston 330 and the second piston 360 on the disinfectant inlet 122 and the hot water inlet 123, the liquid outlet hole is close to one end of the driving wheel 200, and the liquid inlet hole and the liquid outlet hole are connected. When the first piston 330 and the second piston 360 move from the disinfectant inlet 122 and the hot water inlet 123 toward the driving wheel 200, the liquid outlet hole will be exposed, and at this time, the liquid outlet hole is connected to the inside of the nozzle 100, and the liquid connected through the liquid inlet will be injected into the inside of the nozzle 100.

[0038] Figure 3In one embodiment, the joint may include a conical water outlet 130, and the conical water outlet 130 is directed toward the driving wheel 200. After passing through the conical nozzle, a high-speed jet is formed, which drives the driving wheel 200 to rotate, and a low-pressure chamber is formed inside the main body of the decontamination nozzle to absorb the decontamination agent and hot water.

[0039] Figure 7 The nozzle outlet end is shown in one embodiment as including a shower outlet 111 at the nozzle outlet end, one end of the shower outlet 111 is connected to the nozzle outlet end, and the other end is provided with a plurality of through holes 112. The multi-hole nozzle can form a shower structure to improve the efficiency of spraying.

[0040] In a specific embodiment, the shape of the through hole 112 can be circular, square or other shapes.

[0041] Figure 2 and Figure 3 The spray head 100 in one embodiment may include a body 120 having an internal thread at a connection with the nozzle 110, and the nozzle 110 is threadedly connected to the body 120. The nozzle 110 can be disassembled from the body 120 to facilitate assembly of components such as the transmission gear set 210, the first crank-connecting rod assembly 300, and the second crank-connecting rod assembly 301.

[0042] Figure 1 , Figure 2 and Figure 5 The cleaning agent inlet 122 may include, in one embodiment, the cleaning agent inlet 122 being connected to a cleaning agent storage container 400 filled with cleaning agent via a pipeline.

[0043] In a specific embodiment, the disinfectant storage container 400 is a vertical square water tank with a portable handle on the top. The vertical square water tank is a double-layer sealable container with an inner layer made of polytetrafluoroethylene (PTFE) having high temperature resistance, acid and alkali resistance, and corrosion resistance. A disinfectant injection port is provided on the upper surface and a disinfectant quick-release interface 420 is provided on the bottom.

[0044] Figure 1 , Figure 2 and Figure 5 The hot water inlet 123 may include, in one embodiment, the hot water inlet 123 being connected to a hot water container 500 filled with hot water via a pipe.

[0045] In a specific embodiment, the hot water container 500 is a horizontal water storage tank, and a light aluminum alloy fixed bracket is provided at the bottom of the horizontal water storage tank to support the water tank. The horizontal water storage tank is a double-layer cavity insulation structure, with stainless steel inside and aluminum alloy outside, which can be used to store hot water and keep it warm. A water filling port 510 is provided on the upper surface and a hot water quick-release interface 520 is provided at the bottom.

[0046] In a specific embodiment, the disinfectant nozzle 100 is connected to the hot water tank through the connecting component 600, and the disinfectant inlet 122 is connected to the disinfectant storage container 400 through the connecting component 600. The connecting component 600 is an acid- and alkali-resistant metal hose with quick-release connectors at both ends, which can be connected to the quick-release interfaces of the hot water tank, the disinfectant storage container 400, and the disinfectant nozzle sleeve respectively.

[0047] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents, characterized in that: include: A nozzle (110) for spraying a diluted cleaning agent, a body (120) connected to the nozzle (110), and a connector (121) provided on the body (120) for connecting to a water supply pipeline; The body (120) comprises a cleaning agent inlet (122) and a hot water inlet (123) which are respectively arranged on the body (120) and communicated with the interior of the body (120); The main body (120) further comprises a driving wheel (200) arranged inside the main body (120) and located in the water inlet direction of the water supply pipe, a transmission assembly connected to the driving wheel (200), a first piston (330) for sucking the disinfectant and reciprocating at the disinfectant inlet (122) driven by the transmission assembly, and a second piston (360) for sucking hot water and reciprocating at the hot water inlet (123) driven by the transmission assembly, wherein the first piston (330) and the second piston (360) move periodically synchronously, and / or periodically asynchronously.

2. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The transmission assembly comprises two transmission gear sets (210) respectively arranged at two ends of the driving wheel (200), a first crank-connecting rod assembly (300) and a second crank-connecting rod assembly (301) respectively rotatably connected to the transmission gear sets (210), a first piston (330) movably connected to the first crank-connecting rod assembly (300), and a second piston (360) movably connected to the second crank-connecting rod assembly (301).

3. A semi-automatic nuclear and hazardous chemical accident large-scale emergency decontamination nozzle according to claim 2, characterized in that: The transmission gear set (210) is a planetary gear (212) set, and the planetary gear (212) set comprises a gear rack (214) rotatably connected to a driving gear (211), three planetary gears (212), a ring gear (213), and the central axes of the three planetary gears (212).

4. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 3, characterized in that: The first crank-connecting rod assembly (300) includes a first crank member (310) connected to the gear frame (214), and a first connecting rod member (320) rotatably connected to the first crank member (310) and connected to the first piston (330); the second crank-connecting rod assembly (301) includes a second crank member (340) connected to the gear frame (214), and a second connecting rod member (350) rotatably connected to the second crank member (340) and connected to the second piston (360).

5. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The first piston (330) and the second piston (360) are provided with a liquid inlet hole at one end away from the driving wheel (200), and the first piston (330) and the second piston (360) are provided with a liquid outlet hole on the inner wall of the disinfectant inlet (122) and the hot water inlet (123), and the liquid outlet hole is close to one end of the driving wheel (200), and the liquid inlet hole and the liquid outlet hole are connected.

6. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: A conical water outlet (130) is provided at the joint (121), and the water outlet direction of the conical water outlet (130) is toward the driving wheel (200).

7. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The water outlet end of the nozzle (110) is provided with a shower water outlet component (111); one end of the shower water outlet component (111) is connected to the water outlet end of the nozzle (110), and the other end is provided with a plurality of through holes (112).

8. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The body (120) is provided with an internal thread at a connection position with the nozzle (110), and the nozzle (110) is threadedly connected to the body (120).

9. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The cleaning agent inlet (122) is connected to a cleaning agent storage container (400) filled with cleaning agent through a pipeline.

10. A semi-automatic large-scale emergency decontamination nozzle for nuclear and hazardous chemical accidents according to claim 1, characterized in that: The hot water inlet (123) is connected to a hot water container (500) filled with hot water through a pipeline.

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