A double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents

Abstract

The present invention relates to a double-tube high-pressure jet cleaning and decontamination spray gun for realizing instant mixing of cleaning and decontamination agents, comprising a double-tube high-pressure cleaning and decontamination spray gun body, the double-tube high-pressure cleaning and decontamination spray gun body being connected to a double-outlet nozzle mixing cover of the cleaning and decontamination spray gun through a double-tube cleaning and decontamination spray gun pipe body, and a synchronous opening and closing pipeline structure being arranged in the double-tube high-pressure cleaning and decontamination spray gun body. The present invention has a simple structure and occupies a small space; the opening of two pipeline valve cores can be synchronously controlled by a trigger structure, thereby realizing synchronous injection of two solvents, and under the control of a high-pressure pumping system and with the assistance of a specially designed double-nozzle outlet mixing cover, two cleaning and decontamination agents can be mixed in a proportion according to a desired cleaning and decontamination process, and the timeliness and immediacy of the mixing of the two cleaning and decontamination agents can be realized, thereby being able to more efficiently exert the effectiveness of the two cleaning and decontamination agents, improve the efficiency of decontamination cleaning, and improve the convenience of cleaning and decontamination operations.

Description

Technical Field

[0001] The invention belongs to the technical field of high-pressure jet cleaning and decontamination equipment, and relates to a double-tube high-pressure jet cleaning and decontamination spray gun for realizing instant mixing of cleaning and decontamination agents. Background Art

[0002] Cleaning and decontamination operations in extreme environments such as the nuclear industry require that the detergent be sprayed onto the surface to be decontaminated by means of high-pressure jet injection, thereby achieving efficient decontamination and cleaning operations. With the stringent requirements for cleaning and decontamination in extreme environments such as the nuclear industry and the development of cleaning and decontamination chemical technology, in order to achieve more efficient and cleaner cleaning and decontamination, in addition to the need to mix cleaning and decontamination agents with different functions and components in a certain proportion, the timeliness and immediacy of the mixing of the detergents must also be ensured. The present invention is aimed at the special use requirements of two new types of high-efficiency decontamination cleaning agents, that is, the two cleaning and decontamination agents are required to be stored and pumped independently at ordinary times. Only when they are sprayed onto the surface to be cleaned and decontaminated, can the effectiveness of the two cleaning and decontamination agents be more efficiently exerted. Therefore, a high-pressure jet cleaning and decontamination spray gun with dual channels / dual nozzles is developed to achieve the improvement of the efficiency of decontamination and cleaning. Under the principle of nuclear waste minimization, as little cleaning and decontamination agent as possible is used to maximize the decontamination area, improve the cleaning and decontamination efficiency in the nuclear chemical industry, and improve the convenience of cleaning and decontamination operations. Summary of the invention

[0003] The purpose of the present invention is to provide a double-tube high-pressure jet cleaning and decontamination spray gun that can achieve instant mixing of cleaning and decontamination agents, which can solve the technical problems that existing manual wiping and single-tube spray gun spraying cannot ensure the mixing effect and mixing timeliness of two cleaning and decontamination agents.

[0004] According to the technical solution provided by the present invention: a double-tube high-pressure jet cleaning and decontamination spray gun for realizing instant mixing of cleaning and decontamination agents, comprising a double-tube high-pressure cleaning and decontamination spray gun body, the double-tube high-pressure cleaning and decontamination spray gun body is connected to a double-nozzle outlet mixing hood through a double-tube cleaning and decontamination spray gun tube body, and a synchronous opening and closing pipeline structure is arranged in the double-tube high-pressure cleaning and decontamination spray gun body.

[0005] As a further improvement of the present invention, the double-tube high-pressure cleaning and decontamination spray gun body includes a shell, and a synchronous opening and closing pipeline structure is arranged in the shell.

[0006] As a further improvement of the present invention, the housing comprises an outer shell, and the housing is composed of two mirror-symmetrical outer shells.

[0007] As a further improvement of the present invention, the synchronous opening and closing pipeline structure includes a first valve core mounting base and a trigger, a second valve core mounting base is provided on one side of the first valve core mounting base, a first upper channel and a first lower channel are opened in the first valve core mounting base, a second upper channel and a second lower channel are opened in the second valve core mounting base, one side of the first upper channel is connected to the upper pipeline joint of the cleaning detergent, one side of the first lower channel is connected to the lower pipeline joint, a first valve core is arranged between the other side of the first upper channel and one side of the second upper channel, a second valve core is arranged between the other side of the first lower channel and one side of the second lower channel, a liquid inlet is opened on the outer periphery of one end of the first valve core, and a liquid inlet is opened between one end of the first valve core and the first upper channel A first steel ball is provided, a first valve core reset spring is provided between the other end of the first valve core and the second upper channel, a liquid outlet is opened on the outer periphery of the other end of the second valve core, a second valve core reset spring is provided between one end of the second valve core and the first lower channel, and a second steel ball is provided between the other end of the second valve core and the second lower channel; a rotating shaft is provided between the first valve core mounting base, the second valve core mounting base, the first valve core and the second valve core, the middle part of the trigger is hinged to the double-tube high-pressure cleaning and decontamination spray gun body through the rotating shaft, a first shaft shoulder is provided on the outer periphery of the middle part of the first valve core, a second shaft shoulder is provided on the outer periphery of the middle part of the second valve core, a first stop is provided on the upper part of the trigger, and a second stop is provided on the lower part of the trigger.

[0008] As a further improvement of the present invention, the first upper channel is composed of an upper pipe joint section, an upper transition section, and a first valve core left section from left to right, the upper pipe joint section is connected to the cleaning and decontamination agent upper pipeline joint, one side of the first valve core is located in the left section of the first valve core, one end of the first valve core is provided with a first steel ball groove, and the first steel ball is rotatably installed in the first steel ball groove, the second upper channel is composed of a first valve core right section and a cleaning and decontamination agent upper pipeline connecting section from left to right, the other side of the first valve core is located in the right section of the first valve core, one end of the first valve core reset spring abuts against the other end of the first valve core, the other end of the first valve core reset spring abuts against the end of the right section of the first valve core, the cleaning and decontamination agent upper pipeline connecting section The first lower channel is connected to the cleaning and decontamination agent upper pipeline through a clamping nut; the first lower channel is composed of a lower pipe joint section, a lower transition section, and a second valve core left section from left to right; the lower pipe joint section is connected to the lower pipeline joint; one side of the second valve core is located in the left section of the second valve core; one end of the second valve core return spring abuts against one end of the second valve core; the other end of the second valve core return spring abuts against the end of the left section of the second valve core; the second lower channel is composed of a second valve core right section and a lower pipeline connecting section from left to right; the other side of the second valve core is located in the right section of the second valve core; the lower pipeline connecting section is connected to the cleaning and decontamination agent lower pipeline through a clamping nut; and the second steel ball is fixed to the other end of the second valve core by a screw.

[0009] As a further improvement of the present invention, the other side of the second upper channel is connected to the upper pipe of the cleaning and decontamination agent, and the other side of the second lower channel is connected to the lower pipe of the cleaning and decontamination agent; the diameter of the upper transition section is smaller than the diameter of the first steel ball, the diameter of the lower pipe connecting section is smaller than the diameter of the second steel ball, and an auxiliary handle is installed on the main body of the double-tube high-pressure cleaning and decontamination spray gun.

[0010] As a further improvement of the present invention, the outer part of the double-tube cleaning and decontamination spray gun tube body adopts a spray gun tube body shell arranged symmetrically and mirror-image-wise, and an upper cleaning and decontamination agent pipeline and a lower cleaning and decontamination agent pipeline are arranged in the spray gun tube body shell.

[0011] As a further improvement of the present invention, the outlet of the lower pipeline for cleaning and decontaminating agent intersects with the upper pipeline for cleaning and decontaminating agent at a certain angle.

[0012] As a further improvement of the present invention, the double-nozzle outlet mixing hood includes a cover shell, an upper compression pipe thread, a lower compression pipe thread, an upper sealing ring, and a lower sealing ring; the upper compression pipe thread installs the upper pipe of the cleaning and decontamination agent in the pipe joint of the double-nozzle outlet mixing hood, and squeezes the upper sealing ring through the action of the upper compression pipe thread, and the lower compression pipe thread installs the lower pipe of the cleaning and decontamination agent in the pipe joint of the double-nozzle outlet mixing hood, and squeezes the lower sealing ring through the action of the lower compression pipe thread.

[0013] As a further improvement of the present invention, O-rings at both ends of the first valve core and the second valve core are installed in the first valve core installation base and the second valve core installation base respectively.

[0014] The invention has a simple structure and occupies a small space. The opening of two pipeline valve cores can be synchronously controlled by a trigger structure, thereby realizing the synchronous injection of two solvents. Moreover, under the control of a high-pressure pumping system and with the assistance of a specially designed double-nozzle outlet mixing cover, the two cleaning and decontamination agents can be mixed in a proportion according to a desired cleaning and decontamination process, and the timeliness and immediacy of the mixing of the two cleaning and decontamination agents can be realized, thereby more effectively exerting the effectiveness of the two cleaning and decontamination agents, improving the efficiency of the decontamination and cleaning operation, and improving the convenience of the cleaning and decontamination operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1a The invention relates to a double-tube high-pressure jet cleaning and decontamination spray gun system.

[0016] Figure 1b The utility model is an axonometric view showing the basic components and the appearance of a double-tube high-pressure jet cleaning and decontamination spray gun constructed according to the present invention.

[0017] Figure 2aThe utility model is a cross-sectional view of the basic components of the double-tube high-pressure jet cleaning and decontamination spray gun constructed according to the present invention.

[0018] Figure 2b yes Figure 2a Enlarged cross-sectional view of local A.

[0019] Figure 2c yes Figure 2a Enlarged cross-sectional view of local B. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is described in detail with reference to the accompanying drawings and embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments of ordinary technicians in this field before making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1a , Figure 1b , Figure 2a , Figure 2b and Figure 2c The present invention provides a technical solution, a double-tube high-pressure jet cleaning and decontamination spray gun used in the field of nuclear chemical cleaning and decontamination to achieve instant mixing of decontaminants, comprising a double-tube high-pressure jet cleaning and decontamination spray gun 1 and an external high-pressure pump and a pipeline system 2, wherein the double-tube high-pressure jet cleaning and decontamination spray gun 1 includes a double-tube high-pressure cleaning and decontamination spray gun body 1-1, a double-tube cleaning and decontamination spray gun pipe body 1-2 and a double nozzle outlet mixing cover 1-3.

[0022] Specific implementation method 1, a double-tube high-pressure jet cleaning and decontamination spray gun system, the two pipe interfaces on the double-tube high-pressure jet cleaning and decontamination spray gun are connected to the high-pressure pumping system (not shown in the figure) of the corresponding cleaning and decontamination agents through double pipes, so as to realize the independent pumping of two kinds of decontamination agents that need to be mixed at the moment of cleaning to play their role, and realize the synchronous injection of the two kinds of decontamination agents through the trigger on the double-tube high-pressure jet cleaning and decontamination spray gun, enter the double-nozzle outlet mixing hood, and realize the efficient mixing of the two kinds of decontamination agents while injecting, so as to meet the specific cleaning and decontamination process requirements. In addition, through the control of the high-pressure pumping system, the flow control of each cleaning and decontamination agent can be realized, so as to indirectly realize the mixing ratio control of the two cleaning and decontamination agents according to the cleaning and decontamination process requirements.

[0023] Specific implementation method 2, the double-tube high-pressure jet cleaning and decontamination spray gun comprises a double-tube high-pressure cleaning and decontamination spray gun body 1-1, a double-tube cleaning and decontamination spray gun tube body 1-2 and a double-nozzle outlet mixing cover 1-3. The double-tube high-pressure cleaning and decontamination spray gun body 1-1 is connected to the double-tube cleaning and decontamination spray gun tube body 1-2 and the double-nozzle outlet mixing cover 1-3 to form a double-tube high-pressure jet cleaning and decontamination spray gun as a whole.

[0024] Specific implementation method three, the double-tube high-pressure cleaning and decontamination spray gun body 1-1 of the double-tube high-pressure jet cleaning and decontamination spray gun, its composition is as follows: the cleaning and decontamination agent upper pipe joint 1-1-1 and the lower pipe joint 1-1-12 are connected to the corresponding threaded holes on the first valve core mounting base 1-1-2 through pipe threads, and the two ends of the first valve core 1-1-5 are respectively installed in the corresponding pipes of the first valve core mounting base 1-1-2 and the second valve core mounting base 1-1-9 by two O-rings 1-1-4 and 1-1-6, one end of the first valve core 1-1-5 is in contact with the first steel ball 1-1-3, and the other end is in contact with the first valve core reset spring 1-1-7, and the pipeline output end corresponding to the first valve core 1-1-5 is connected to the cleaning and decontamination agent upper pipe 1-2-1 through the clamping nut 1-1-10; the first valve core 1-1-5 is in contact with the trigger 1-1-15 through the shaft shoulder in the middle position of itself, so that it can be Figure 2b The trigger 1-1-15 is pulled to the bottom in the direction indicated by the arrow, and the trigger 1-1-15 rotates clockwise around the rotating shaft 1-1-21. The first stop located on the upper part of the trigger 1-1-15 moves to the right, pushing the first shaft shoulder to make the first valve core 1-1-5 move to the right, thereby pushing the first steel ball 1-1-3 away from the pipe mouth under the pressure of the high-pressure cleaning detergent itself, and the pipe is opened. The high-pressure cleaning detergent can enter the central hole of the first valve core 1-1-5 through the circumferential liquid inlet hole at the left end of the first valve core 1-1-5, and then enter the cleaning detergent upper pipe 1-2-1. In addition, the second valve core 1-1-16 is installed in the same manner as the first valve core 1-1-5, and also uses two O-rings 1-1-14 and 1-1-17 to be installed in the corresponding pipes of the first valve core mounting base 1-1-2 and the second valve core mounting base 1-1-9. One end of the second valve core 1-1-16 contacts the second steel ball 1-1-18, and the other end contacts the second valve core reset spring 1-1-13. The pipe output end corresponding to the first valve core 1-1-5 is connected to the lower pipe cleaning and decontamination agent lower pipe 1-2-2 through the clamping nut 1-1-20; the second valve core 1-1-16 also contacts the trigger 1-1-15 through the shaft shoulder in the middle position of itself, and can also be connected as shown in the following figure. Figure 2bThe trigger 1-1-15 is pulled in the direction indicated by the arrow, and the trigger 1-1-15 rotates clockwise around the rotating shaft 1-1-21. The second stopper at the bottom of the trigger 1-1-15 moves to the left, pushing the second shaft shoulder to make the second valve core 1-1-16 move to the left, thereby pushing the second steel ball 1-1-18 (the second steel ball 1-1-18 is fixed to the top of the right end of the second valve core 1-1-16 by screws) fixedly connected to the second valve core 1-1-16 away from the pipe port, so that the pipe is opened, and the high-pressure cleaning detergent can pass through the center hole of the second valve core 1-1-16 and enter through the circumferential through hole of the right end of the second valve core 1-1-16, thereby entering the lower pipe cleaning detergent lower pipe 1-2-2. The first valve core 1-1-5 and the second valve core 1-1-16 are installed in opposite directions, so that the same trigger can be used to synchronously open and close the two valve cores. The first valve core mounting base 1-1-2 and the second valve core mounting base 1-1-9 are fixed in the housing 1-1-19 of the double-tube high-pressure cleaning and decontamination spray gun through threads. The housing 1-1-19 is a structure with two mirror images. The mounting base 1-1-2 and the second valve core mounting base 1-1-9 are installed in the middle of the housing by means of clamping positioning guide features and threaded connection. At the same time, the rotating shaft 1-1-21 of the trigger 1-1-15 is installed in the corresponding position of the housing through the corresponding holes on the housing 1-1-19 on both sides. The trigger 1-1-15 is installed on the rotating shaft 1-1-21 through the through hole on the body. The first valve core 1-1-5 and the second valve core 1-1-16 pass through the upper and lower waist-shaped through holes on the trigger respectively, and the shoulders thereon are in contact with the left and right stops of the trigger 1-1-15 respectively, so as to be as follows Figure 2b When the trigger is pulled in the direction of the arrow shown in the figure, the first valve core 1-1-5 and the second valve core 1-1-16 can move leftward and rightward respectively, thereby opening their respective pipelines. Finally, the end shell 1-1-11 is fixed to the right end of the double-tube high-pressure cleaning and decontamination spray gun body 1-1 by means of a positioning stop and a threaded connection.

[0025] The auxiliary handle 1-1-22 is installed on the outside of the shell assembly to assist the handle on the shell, making it easier for the operator to operate the high-pressure jet cleaning and decontamination spray gun.

[0026] Specific implementation method 4, the double-tube cleaning and decontamination spray gun tube body 1-2 of the double-tube high-pressure jet cleaning and decontamination spray gun is characterized in that it comprises an upper cleaning and decontamination agent pipeline 1-2-1 and a lower cleaning and decontamination agent pipeline 1-2-2. In order to ensure that the two cleaning and decontamination agents can be effectively mixed at the moment of injection, the outlet of the lower cleaning and decontamination agent pipeline 1-2-2 intersects with the upper cleaning and decontamination agent pipeline 1-2-1 at a certain angle, and the lower cleaning and decontamination agent pipeline 1-2-2 is used to inject a larger amount of cleaning and decontamination agent. In addition, in order to ensure the airtightness of the double-tube high-pressure jet cleaning and decontamination spray gun and its own performance of being easy to clean and decontaminate, the outside of the double-tube cleaning and decontamination spray gun tube body 1-2 also adopts a symmetrically mirrored spray gun tube body shell 1-2-3 to achieve the overall covering of the pipeline, and together with the end shell 1-1-11 of the double-tube high-pressure cleaning and decontamination spray gun body 1-1 and the cover shell 1-3-3 of the double-nozzle outlet mixing cover 1-3, the entire double-tube high-pressure jet cleaning and decontamination spray gun is sealed and airtight, and the overall surface finish of the entire double-tube high-pressure jet cleaning and decontamination spray gun is achieved, which is convenient for overall decontamination and cleaning.

[0027] Specific implementation method five, a double-nozzle outlet mixing cover 1-3 of a double-tube high-pressure jet cleaning and decontamination spray gun. It is characterized in that the double-nozzle outlet mixing cover 1-3 includes a cover shell 1-3-3, an upper compression pipe thread 1-3-1 and a lower compression pipe thread 1-3-4, as well as an upper sealing ring 1-3-2 and a lower sealing ring 1-3-5. Among them, the upper compression pipe thread 1-3-1 installs the cleaning and decontamination agent upper pipeline 1-2-1 in the pipeline joint of the double-nozzle outlet mixing cover 1-3, and the upper sealing ring 1-3-2 is squeezed by the action of the upper compression pipe thread 1-3-1 to achieve the sealing between the upper cleaning and decontamination agent pipeline 1-2-1 and the cover shell 1-3-3. Similarly, the lower compression pipe thread 1-3-4 mainly realizes the fastening connection between the cleaning and decontamination agent lower pipeline 1-2-2 and the cover shell 1-3, and the sealing between them is achieved by the lower compression pipe thread 1-3-4 compressing the lower sealing ring 1-3-5 to achieve sealing.

Claims

1. A double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents, characterized in that: The spray gun comprises a double-tube high-pressure cleaning and decontamination spray gun body (1-1), the double-tube high-pressure cleaning and decontamination spray gun body (1-1) is connected to a double-nozzle outlet mixing cover (1-3) via a double-tube cleaning and decontamination spray gun pipe body (1-2), and a synchronous opening and closing pipeline structure is arranged in the double-tube high-pressure cleaning and decontamination spray gun body (1-1); the double-tube high-pressure cleaning and decontamination spray gun body (1-1) comprises a shell, and a synchronous opening and closing pipeline structure is arranged in the shell; the synchronous opening and closing pipeline structure comprises a valve core first mounting base (1-1-2) and a trigger (1-1-15), and a valve core second mounting base (1-1-2) is arranged on one side of the valve core first mounting base (1-1-2). The valve core has a first upper channel and a first lower channel in its first mounting base (1-1-2), and a second upper channel and a second lower channel in its second mounting base (1-1-9). One side of the first upper channel is connected to an upper pipe joint (1-1-1) for cleaning and decontamination agent, and one side of the first lower channel is connected to a lower pipe joint (1-1-12). A first valve core (1-1-5) is arranged between the other side of the first upper channel and one side of the second upper channel, and a second valve core (1-1-16) is arranged between the other side of the first lower channel and one side of the second lower channel. The first valve core (1-1-5) is connected to a cleaning and decontamination agent upper pipe joint (1-1-1) and a lower pipe joint (1-1-12). ) has a liquid inlet on its outer periphery at one end, a first steel ball (1-1-3) is provided between one end of the first valve core (1-1-5) and the first upper channel, a first valve core return spring (1-1-7) is provided between the other end of the first valve core (1-1-5) and the second upper channel, a liquid outlet is provided on its outer periphery at the other end of the second valve core (1-1-16), a second valve core return spring (1-1-13) is provided between one end of the second valve core (1-1-16) and the first lower channel, and a second steel ball (1-1-18) is provided between the other end of the second valve core (1-1-16) and the second lower channel; the valve core first mounting base A rotating shaft (1-1-21) is provided between the body (1-1-2), the second mounting base (1-1-9) of the valve core, the first valve core (1-1-5) and the second valve core (1-1-16); the middle part of the trigger (1-1-15) is hinged to the double-tube high-pressure cleaning and decontamination spray gun body (1-1) through the rotating shaft (1-1-21); the outer periphery of the middle part of the first valve core (1-1-5) is provided with a first shaft shoulder; the outer periphery of the middle part of the second valve core (1-1-16) is provided with a second shaft shoulder; the upper part of the trigger (1-1-15) is provided with a first stop platform; and the lower part of the trigger (1-1-15) is provided with a second stop platform;The first upper channel is composed of an upper pipe joint section, an upper transition section, and a first valve core left section from left to right. The upper pipe joint section is connected to the cleaning agent upper pipeline joint (1-1-1). One side of the first valve core (1-1-5) is located in the first valve core left section. A first steel ball groove is provided at one end of the first valve core (1-1-5). The first steel ball (1-1-3) is rotatably mounted in the first steel ball groove. The second upper channel is composed of a first valve core right section and a cleaning agent upper pipeline connection section from left to right. The first valve core (1-1-5) is provided with a first steel ball groove at one end. The first steel ball (1-1-3) is rotatably mounted in the first steel ball groove. The other side of the valve core (1-1-5) is located in the right section of the first valve core, one end of the first valve core return spring (1-1-7) abuts against the other end of the first valve core (1-1-5), and the other end of the first valve core return spring (1-1-7) abuts against the end of the right section of the first valve core. The upper pipeline connecting section of the cleaning and decontamination agent is connected to the upper pipeline of the cleaning and decontamination agent (1-2-1) through a compression nut (1-1-10); the first lower channel is composed of a lower pipe joint section, a lower transition section, and a second valve core left section from left to right. The lower pipe joint The second lower passage is connected to the lower pipe joint (1-1-12), one side of the second valve core (1-1-16) is located in the left section of the second valve core, one end of the second valve core return spring (1-1-13) abuts against one end of the second valve core (1-1-16), and the other end of the second valve core return spring (1-1-13) abuts against the end of the left section of the second valve core. From left to right, the second lower passage is the right section of the second valve core and the lower pipe connection section, and the other side of the second valve core (1-1-16) is located in the right section of the second valve core The lower pipe connection section is connected to the cleaning agent lower pipe (1-2-2) through a compression nut (1-1-20), and the second steel ball (1-1-18) is fixed to the other end of the second valve core (1-1-16) through a screw; both ends of the first valve core (1-1-5) are installed in the first valve core installation base (1-1-2) through an O-ring; and both ends of the second valve core (1-1-16) are installed in the second valve core installation base (1-1-9) through O-rings. ; 2. The double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents as claimed in claim 1, characterized in that: The shell comprises an outer shell (1-1-19), and the shell is composed of two mirror-symmetrical outer shells (1-1-19).

3. The double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents as claimed in claim 1, characterized in that: The other side of the second upper channel is connected to the upper cleaning and decontamination agent pipeline (1-2-1), and the other side of the second lower channel is connected to the lower cleaning and decontamination agent pipeline (1-2-2); the diameter of the upper transition section is smaller than the diameter of the first steel ball (1-1-3), the diameter of the lower pipeline connection section is smaller than the diameter of the second steel ball (1-1-18), and an auxiliary handle (1-1-22) is installed on the double-tube high-pressure cleaning and decontamination spray gun body (1-1).

4. The double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents as claimed in claim 1, characterized in that: The exterior of a double-tube cleaning and decontamination spray gun tube body (1-2) adopts a spray gun tube body shell (1-2-3) arranged symmetrically and in mirror image, and an upper cleaning and decontamination agent pipeline (1-2-1) and a lower cleaning and decontamination agent pipeline (1-2-2) are arranged in the spray gun tube body shell (1-2-3).

5. The double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents as claimed in claim 4, characterized in that: The outlet of the cleaning and decontamination agent lower pipe (1-2-2) intersects with the cleaning and decontamination agent upper pipe (1-2-1) at a certain angle.

6. The double-tube high-pressure jet cleaning and decontamination spray gun for achieving instant mixing of cleaning and decontamination agents as claimed in claim 4, characterized in that: The double nozzle outlet mixing cover (1-3) comprises a cover shell (1-3-3), an upper compression pipe thread (1-3-1), a lower compression pipe thread (1-3-4), an upper sealing ring (1-3-2), and a lower sealing ring (1-3-5); the upper compression pipe thread (1-3-1) installs the cleaning and decontamination agent upper pipe (1-2-1) in the pipe joint of the double nozzle outlet mixing cover (1-3), and the upper sealing ring (1-3-2) is squeezed by the action of the upper compression pipe thread (1-3-1); the lower compression pipe thread (1-3-4) installs the cleaning and decontamination agent lower pipe (1-2-2) in the pipe joint of the double nozzle outlet mixing cover (1-3), and the lower compression pipe thread (1-3-4) is squeezed by the action of the lower compression pipe thread (1-3-5).

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