Steam control method and device for water conservancy project dam soil-habitual cultivation termites

Abstract

The invention provides a steam control method and device for water conservancy project dam soil-habitual cultivation termites, and the method comprises the following steps: 1, when termite nest umbrella fungi are found on a dam body, the position of a termite nest can be determined through a nest detecting and sampling device; or other equipment is used for detecting the ant nest direction through the branch fly holes and the main ant channel, and after the ant nest is confirmed, the steam pipeline is arranged in the ant nest direction. Secondly, under the condition that the steam pipeline goes deep into the ant channel, a one-way valve is controlled to be opened, so that steam generated by the portable steam generator enters the ant channel through the steam pipeline; after the barometer on the steam pipeline is stable, a pressure release valve on the steam pipeline is controlled to be opened, and the steam temperature at an outlet of the pressure release valve is obtained; and step 3, controlling the steam pipeline to continuously introduce steam into the termite channel, and maintaining for a set time. Through efficient and accurate steam conveying, safe and stable steam pressure management and steam temperature adjustment, the optimal termite killing effect is achieved, negative effects on the environment are reduced, and the safety and stability of the dam are improved.

Description

Technical Field

[0001] The invention relates to the technical field of termite control, and in particular to a steam control method and device for soil-dwelling fungus-cultivating termites in a water conservancy project dam. Background Art

[0002] As we all know, termites have the habit of living in nests, especially the black-winged earth termites and yellow-winged giant termites that harm the earthen dams of water conservancy projects. They build a main nest with a diameter of more than 1 meter and a large number of secondary nests (fungus gardens) inside the dam, which are connected by ant tunnels that extend in all directions. At the same time, they communicate with the outside world through flying holes and feeding, forming a semi-closed network of channels that runs through the upstream and downstream of the dam.

[0003] The existing termite control technology usually uses fumigation, high temperature termite killing or thermal method for termite control. The specific operation method of the fumigation method is: using fumigants to release toxic gases, penetrate into the termite activity area to kill termites. The main agents and ranges include: 1. Aluminum phosphide decomposes into highly toxic phosphine (PH3) when it comes into contact with air. It is suitable for closed environments (such as fumigation rooms or plastic film coverings). The dosage is 8-12g / m 3 2. Sulfuryl fluoride: colorless and odorless, strong diffusivity, high penetration, still effective in low temperature environment, dosage is about 30g / m 3 . The advantage of fumigation is that the gas can penetrate into the pores of wood, ant tunnels and nests, achieving no dead angle killing. Its operation points: seal the treatment area, phosphine and other gases are highly toxic to humans and animals, and the operation must strictly follow the specifications to prevent gas leakage; workers must wear gas masks to ensure safety. High temperature termite killing method or thermal method directly kills termites by treating the infested wood or soil with high temperature. Sand termites can die after being exposed to an environment above 60°C for several hours. For example: 65°C treatment for 1.5 hours or 60°C treatment for 4 hours can effectively kill sand termites. Its application scenario: It is suitable for the extermination of small-volume items such as furniture and wooden components, which is easy to operate and has no chemical residues. The limitation is that the temperature and time need to be precisely controlled, and the high temperature will cause certain damage to the treated items and materials. The above methods all have certain limitations, so there is an urgent need for a steam control method for soil-dwelling fungus termites in water conservancy project dams. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a method and device for steam control of soil-dwelling fungus-cultivated termites in a water conservancy project dam, so as to eliminate or improve one or more defects existing in the prior art.

[0005] The present invention provides a steam control method for soil-dwelling fungus-cultivated termites in a water conservancy project dam, the method comprising the following steps:

[0006] Step 1: When the steam pipe penetrates deep into the ant tunnel, the one-way valve is controlled to open so that the steam generated by the portable steam generator enters the ant tunnel through the steam pipe;

[0007] Step 2: After the pressure gauge on the steam pipeline is stable, control the pressure relief valve on the steam pipeline to open, and obtain the steam temperature at the outlet of the pressure relief valve;

[0008] Step three: when the steam temperature is lower than the set temperature, repeat step two; when the steam temperature is higher than or equal to the set temperature, control the steam pipe to continuously supply steam into the ant tunnel for a set time.

[0009] In one embodiment, the steam in the portable steam generator is 100°C.

[0010] In one embodiment, the set temperature is 60-70°C.

[0011] In one embodiment, the setting time is 15-20 minutes.

[0012] In one embodiment, whether there is a gas leak is determined by whether there is steam on the dam body.

[0013] In one of the embodiments, before the entrance to the ant tunnel is blocked, colored smoke generated by a colored smoke generating tank is injected into the entrance to the ant tunnel, and whether there is a leak is determined by whether colored smoke appears on the dam body.

[0014] In one of the embodiments, the junction of the steam pipe and the ant tunnel is blocked, and the air leakage position on the dam body is blocked.

[0015] In one embodiment, the steam pressure at the ant tunnel opening is 1-1.1 atmospheres.

[0016] In one embodiment, a section of the steam pipe away from the portable steam generator has a pointed tip. When the ant tunnel is a single hole and the direction of the nest cavity is determined, the pointed tip structure is controlled to be inserted into the ant tunnel and is controlled to be set toward the nest cavity.

[0017] The present invention also provides a steam control device for soil-dwelling fungus-cultivating termites in water conservancy project dams. In one embodiment, the device includes a portable steam generator, a one-way valve, a pressure relief valve, a pressure gauge and a steam pipeline;

[0018] One end of the steam pipe is connected to the portable steam generator;

[0019] The pressure relief valve is connected to the middle part of the steam pipeline;

[0020] The one-way valve is connected to the steam pipe and is located between the portable steam generator and the pressure relief valve;

[0021] The pressure gauge is in communication with the pressure relief valve;

[0022] One end of the steam pipe away from the portable steam generator is used to pass the steam generated by the portable steam generator into the ant tunnel.

[0023] A steam control method and device for soil-dwelling fungus-cultured termites in a water conservancy project dam in an embodiment of the present invention has the following technical effects: through efficient and accurate steam delivery, safe and stable steam pressure management, and adjustment of steam temperature to achieve the best termite killing effect, the negative impact on the environment is reduced and the safety and stability of the dam are improved.

[0024] Additional advantages, purposes, and features of the present invention will be described in part in the following description, and will become apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention may be achieved and obtained by the structures specifically indicated in the specification and the accompanying drawings.

[0025] Those skilled in the art will appreciate that the objectives and advantages that can be achieved with the present invention are not limited to the above specific description, and the above and other objectives that can be achieved by the present invention will be more clearly understood from the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention.

[0027] Figure 1 The present invention is a flow chart of a method for steam control of soil-dwelling fungus-cultivated termites in a water conservancy project dam according to an embodiment of the present invention.

[0028] Figure 2 The present invention is a schematic structural diagram of a steam control device for soil-dwelling fungus-cultivated termites in a water conservancy project dam according to an embodiment of the present invention.

[0029] Figure numerals: 1. portable steam generator; 2. one-way valve; 3. pressure relief valve; 4. pressure gauge; 5. steam pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0031] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0032] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0033] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0034] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0035] Reference Figure 1 The embodiment of the present invention provides a steam control method for soil-dwelling fungus-cultivated termites in a water conservancy project dam, the method comprising the following steps:

[0036] Step 1: When the steam pipe 5 penetrates into the ant tunnel, the one-way valve 2 is controlled to open, so that the steam generated by the portable steam generator 1 enters the ant tunnel through the steam pipe 5;

[0037] Step 2: After the pressure gauge 4 on the steam pipeline 5 is stable, the pressure relief valve 3 on the steam pipeline 5 is controlled to open, and the steam temperature at the outlet of the pressure relief valve 3 is obtained;

[0038] Step 3: When the steam temperature is lower than the set temperature, repeat step 2; when the steam temperature is higher than or equal to the set temperature, control the steam pipe 5 to continuously supply steam into the ant tunnel for the set time.

[0039] In the above embodiment, steam is generated by the portable steam generator 1, and the one-way valve 2 is precisely controlled to ensure that the steam can smoothly and efficiently pass through the steam pipe 5 and penetrate deep into the ant tunnel. This design avoids the leakage and waste of steam, and at the same time ensures that the steam can directly act on the activity area of ​​termites, thereby improving the efficiency of killing termites.

[0040] The barometer 4 installed on the steam pipe 5 can monitor the steam pressure in the pipe in real time to ensure that the operation is within a safe range. When the air pressure is stable, the excess pressure can be released and the actual temperature of the steam can be obtained by opening the pressure relief valve 3. This process not only ensures the safety of the operator, but also ensures the stability of the steam prevention process.

[0041] By continuously detecting the steam temperature at the outlet of the pressure relief valve 3 and comparing it with the set temperature, the steam supply status can be intelligently adjusted. When the steam temperature is lower than the set value, step 2 is repeated to accumulate enough heat; when the steam temperature reaches or exceeds the set value, steam is continuously introduced and maintained for the set time to ensure that the termites inside the ant tunnel are completely killed. This intelligent adjustment mechanism greatly improves the accuracy and effect of ant killing.

[0042] This method uses steam as a termite killing medium, avoiding the use of chemical agents, thereby reducing pollution and damage to the environment. At the same time, the steam dissipates quickly during the termite killing process and will not cause long-term impact on the dam structure and the surrounding environment.

[0043] By effectively killing the soil-dwelling fungus-infested termites inside the dam, the method helps prevent termites from eroding and damaging the dam materials, thereby improving the overall safety and stability of the dam. This is of great significance for ensuring the normal operation of water conservancy projects and the safety of people's lives and property.

[0044] In some embodiments, the steam in the portable steam generator 1 is at 100°C.

[0045] In some embodiments, the set temperature is 60-70°C.

[0046] In some embodiments, the setting time is 15-20 minutes.

[0047] In some embodiments, whether there is leakage is determined by whether there is steam on the dam body, especially in winter when the temperature is low.

[0048] In some embodiments, before the entrance to the ant tunnel is blocked, colored smoke generated by a colored smoke generator is injected into the entrance to the ant tunnel, and whether there is a leak is determined by whether colored smoke appears on the dam body. Colored smoke has the characteristic of high visibility, and the naked eye can quickly identify whether there is a leak on the surface of the dam body, without relying on complex instrument detection, which greatly reduces the judgment threshold. The use of smoke generators as detection tools has low equipment cost and is easy to operate. It can quickly cover a large area and significantly shorten the detection time. It is especially suitable for outdoor or resource-limited scenarios. The flow characteristics of smoke can naturally penetrate along ant tunnels and cracks, which can not only detect leaks, but also accurately locate cracks or structural weaknesses through the location of smoke escape, providing a clear target for subsequent repairs. The use of non-toxic and degradable smoke agents can complete the detection without affecting the ecological environment, which is especially suitable for water source protection areas and ecologically sensitive areas.

[0049] In some embodiments, the junction of the steam pipe 5 and the ant tunnel is blocked, and the air leakage position on the dam body is blocked.

[0050] In some embodiments, the steam pressure at the ant tunnel opening is 1-1.1 atmospheres.

[0051] Reference Figure 2 In some embodiments, a section of the steam pipe 5 away from the portable steam generator 1 has a pointed tip. When the ant tunnel is a single hole and the direction of the nest cavity is determined, the pointed tip structure is controlled to be inserted into the ant tunnel and is controlled to be set toward the nest cavity.

[0052] In the above embodiment, when the ant tunnel is a single hole and the direction of the nest cavity is known, the pointed structure of the steam pipe 5 can be accurately inserted into the ant tunnel and directed toward the nest cavity. In this way, the steam can directly act on the termite nest, quickly and efficiently killing most of the individuals in the ant colony, especially those termites hiding deep in the nest cavity. This precise positioning method greatly improves the efficiency of killing termites and reduces the waste of steam and unnecessary operation time.

[0053] The pointed structure design not only improves the efficiency of termite killing, but also reduces the difficulty of operation. Operators can more easily insert the steam pipe into the ant tunnel and choose the appropriate direction according to the actual situation. At the same time, this design also reduces the direct contact between operators and the inside of the ant tunnel, reduces the risk of being bitten by termites or other potential injuries, and improves the safety of operations.

[0054] An embodiment of the present invention also provides a steam control device for soil-dwelling fungus-cultivating termites in water conservancy project dams. In some embodiments, the device includes a portable steam generator 1, a one-way valve 2, a pressure relief valve 3, a barometer 4 and a steam pipe 5; one end of the steam pipe 5 is connected to the portable steam generator 1; the pressure relief valve 3 is connected to the middle part of the steam pipe 5; the one-way valve 2 is connected to the steam pipe 5 and is located between the portable steam generator 1 and the pressure relief valve 3; the barometer 4 is connected to the pressure relief valve 3; the end of the steam pipe 5 away from the portable steam generator 1 is used to pass the steam generated by the portable steam generator 1 into the ant tunnel.

[0055] In the above embodiment, the portable steam generator 1 as a steam source has the advantages of small size, easy to carry, quick start, etc., and can quickly generate high-temperature steam. Through the precise control of the one-way valve 2, it is ensured that the steam can only flow in one direction, from the portable steam generator 1 through the steam pipe 5 into the ant tunnel, effectively preventing the steam from flowing back, and ensuring the high efficiency and stability of the steam supply.

[0056] The pressure relief valve 3 is connected to the middle of the steam pipe 5, and can automatically open when the steam pressure is too high to release excess pressure and protect the entire device from high pressure damage. At the same time, the barometer 4 is connected to the pressure relief valve 3 to monitor the pressure state in the steam pipe in real time, providing intuitive pressure data for operators and ensuring the safety of operation. In addition, by opening the pressure relief valve 3, the actual temperature of the steam can also be obtained, which provides an important basis for adjusting the steam supply state.

[0057] As a key component for steam transmission, the steam pipe 5 is designed with full consideration of the complexity and diversity of ant tunnels. The end of the steam pipe 5 away from the portable steam generator 1 can be flexibly adjusted according to the actual situation of the ant tunnel, such as using a pointed structure to adapt to the situation of a single-hole ant tunnel or a multi-branch ant tunnel, ensuring that the steam can be accurately delivered to the inside of the ant tunnel to improve the ant killing effect.

[0058] The steam prevention device of the embodiment of the present invention has a compact structure and a reasonable layout. The components are tightly connected and easy to disassemble, which is convenient for daily maintenance and troubleshooting. At the same time, the operation steps of the device are simple and clear. The operator only needs to operate according to the established process, which greatly reduces the difficulty of operation and the risk of misoperation.

[0059] The present invention is a control technology for killing soil-dwelling fungus-cultivating termites such as black-winged soil termites and yellow-winged macrotermes in water conservancy project dams by using steam. The core principle is: utilizing the semi-closed nest cavity system of black-winged soil termites and yellow-winged macrotermes (i.e., the main nest, the secondary nest, and the sponge-like hole structure, ant tunnels, flight holes, feeding holes, etc. of the main and secondary nests), thermal steam is transferred to the entire nest, especially the main nest and the secondary nest, by means of micro-pressure, and the termite body itself and the ant nest agaric on the mushroom bed are killed by the high temperature of the steam.

[0060] In a specific embodiment, the steam control method for soil-dwelling fungi termites in water conservancy project dams includes the following steps: when branching holes are found on the water conservancy project dams, or indicators such as ant nest mushrooms are found on the dams, or local detection radars find ant nests and confirm the location of the ant nests through probes, or ant tunnels or main ant tunnels are found during nest digging, but the nest digging method cannot be used to kill termites because it is in the flood season, or when the termites on the water conservancy project dams are in a drinking water source protection area and the drug control method cannot be used to kill termites, when termites are found to be walking through the stones of the dam body during nest digging, and if crushed stones are needed but affect the stability of the dam body structure, the steam control method is a safe and environmentally friendly termite control method with clear prevention and control goals, a single method, direct prevention effect, and obvious results.

[0061] A portable steam generator was used to generate steam at 100°C, and the steam was injected into the ant tunnels by micro-pressure.

[0062] The steam pipe is connected to a one-way valve to ensure micro-pressure and steam does not flow back; the steam injection head is a pointed head. When it is found that the main ant channel is a single hole and it is judged that the main ant channel is at the far end, a single pointed head is used to ensure steam injection.

[0063] The front end of the one-way valve is connected to a steam flow meter and a pressure relief valve. When the steam pressure stabilizes and does not change much, the steam injection can be stopped to allow the injected steam to diffuse to the far end in the cell system, exchange heat with the cell wall and the ant tunnel wall and condense into water. After the pressure drops, the steam is continued to be input to ensure the exchange of hot air in the cell and gradually heat up the cell.

[0064] When the pressure of the injected steam does not change much, you can actively use the pressure relief valve to relieve the pressure and measure the temperature of the pressure relief port. If it is 65°C or below, you can continue to inject steam into the ant tunnel and perform the above steps 2-3 times in a row. When the temperature of the pressure relief hole reaches about 65°C, inject steam and maintain it for about 15-20 minutes.

[0065] The termites, whether they are the king ant, queen ant, worker ant, etc., as well as the fungi in the ant nest, will be killed by the thermal steam, thus achieving a killing effect.

[0066] Notes: 1. When the steam injection hole is located in the ant tunnel, you can take soil nearby to moisten it and then seal the injection port. 2. When injecting, check whether the sealing mud is bubbling and there is steam leakage. 3. When operating in winter, you can check whether there is steam on the dam body. When the steam cannot be observed in summer or when the temperature is high, you can use a colored smoke generator to smoke and immediately seal the injection port before sealing, and then check whether there is colored smoke on the dam body; 3. The location where steam and colored smoke appear can be gradually sealed with soil. 4. In the early stage, steam is transmitted in the ant tunnel and the nest cavity, relying on the semi-enclosed condition of the nest cavity, which is conducive to the transmission of steam to the far end. At the same time, termites cannot block it. At the same time, the nest cavity can also be heated to ensure that the temperature can rise without losing temperature. 5. Before injecting steam, the injection port can be isolated with transparent plastic, which can be observed and prevent steam from scalding the operator. 6. Micro-pressure standard: In the early stage, the evaporation pressure of the steam generated by the portable steam generator can be used without increasing the pressure. In the later stage, the pressure can be increased to 1-1.1 atmospheres. 7. Operation and control treatment shall be carried out by professional termite control service agencies. Professional termite control technicians and construction operators shall be trained and assessed before taking up their posts to ensure proficiency in operation.

[0067] The structure of the ant nest and the characteristics of the ant trail: size, semi-enclosed state. Judgment criteria: whether the termites have blocked the ant trail with new soil. Prerequisite for use: the location of the ant trail and ant nest is certain. Advantages: environmental protection, only in the termite ant trail and nest cavity. No nest digging, no damage to the dam, and timely treatment when termites are found.

[0068] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0069] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam control method for soil-dwelling fungus-cultivated termites in water conservancy projects and dams, characterized in that: The method comprises the following steps: Step 1: When the steam pipe (5) penetrates deep into the ant tunnel, the one-way valve (2) is controlled to open, so that the steam generated by the portable steam generator (1) enters the ant tunnel through the steam pipe (5); Step 2: After the pressure gauge (4) on the steam pipeline (5) is stable, the pressure relief valve (3) on the steam pipeline (5) is controlled to open, and the steam temperature at the outlet of the pressure relief valve (3) is obtained; Step three: when the steam temperature is lower than the set temperature, repeat step two; when the steam temperature is higher than or equal to the set temperature, control the steam pipe (5) to continuously pass steam into the ant tunnel for a set time.

2. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: The steam in the portable steam generator (1) is at 100°C.

3. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: The set temperature is 60-70°C.

4. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: The setting time is 15-20 minutes.

5. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: Whether there is a leak can be determined by whether there is steam on the dam body.

6. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: Before sealing the entrance to the ant tunnel, inject colored smoke produced by the colored smoke generator into the entrance to the ant tunnel, and determine whether there is a leak by observing whether colored smoke appears on the dam body.

7. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: The joint position between the steam pipe (5) and the ant tunnel is blocked, and the air leakage position on the dam body is blocked.

8. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: The steam pressure at the ant tunnel opening is 1-1.1 atmospheres.

9. The steam control method for soil-dwelling fungus-cultivated termites in water conservancy project dams according to claim 1, characterized in that: A section of the steam pipe (5) away from the portable steam generator (1) has a pointed structure. When the ant tunnel is a single hole and the direction of the nest cavity is determined, the pointed structure is controlled to be inserted into the ant tunnel and is controlled to be arranged toward the nest cavity.

10. A steam control device for soil-dwelling fungus-growing termites in water conservancy project dams, a method for steam control of soil-dwelling fungus-growing termites in water conservancy project dams according to any one of claims 1 to 9, characterized in that: The device comprises a portable steam generator (1), a one-way valve (2), a pressure relief valve (3), a pressure gauge (4) and a steam pipeline (5); One end of the steam pipe (5) is connected to the portable steam generator (1); The pressure relief valve (3) is connected to the middle portion of the steam pipe (5); The one-way valve (2) is connected to the steam pipe (5) and is located between the portable steam generator (1) and the pressure relief valve (3); The pressure gauge (4) is in communication with the pressure relief valve (3); The end of the steam pipe (5) away from the portable steam generator (1) is used to pass the steam generated by the portable steam generator (1) into the ant tunnel.

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