A land shear wave exploration electric spark source device

Abstract

The present invention provides a land shear wave exploration electric spark seismic source device, which includes a housing, a water tank, an electric spark electrode and an anvil. There is a side opening on one side of the housing. The water tank is fixedly arranged inside the housing and is used for storing liquid inside. There is a water outlet on the side of the water tank close to the side opening. The electric spark electrode is arranged on the outer wall of the water tank to discharge electricity to the liquid in the water tank. The anvil is arranged at the water outlet. The back of the anvil is connected to the outer wall of the water tank through a plurality of elastic members. The elastic members tighten the anvil to block the water outlet. The beneficial effects of the present invention are as follows: By discharging electricity to the liquid in the water tank through the electric spark electrode, the liquid is vaporized in the microsecond level to generate a shock wave, which impacts the anvil and causes the anvil to rush outwards. The elastic members stretch, and the anvil transmits the impact force to the ground to excite shear waves, solving the problems that it is difficult for the electric spark seismic source to insert the discharge electrode deep into the side holes of the tunnel wall and that there must be water in the holes, reducing the use restrictions of the electric spark seismic source in the field and making the application scenarios more extensive.

Description

Technical Field

[0001] The present invention relates to the technical field of geological or underground resource exploration equipment, and particularly relates to a land shear wave exploration electric spark source device. Background Art

[0002] A seismic source is a commonly used device for geological or underground resource exploration. Seismic sources can be divided into two types: explosive seismic sources and artificial non-explosive seismic sources. Due to the good pulse performance and high excitation energy of explosive seismic sources, but due to the strict control of explosives and the harm that explosive seismic sources can cause to the environment, there is an urgent need for an artificial seismic source that can replace explosive seismic sources. Among non-explosive seismic sources, the most widely used is the electric spark source. Land electric spark sources can be excited in wells or on the ground. When excited in a well, the electrodes are placed in the well at a certain depth and discharged, and seismic waves can be generated. At this time, the shot hole is the transducer, and the operation is relatively simple. However, it is very difficult to insert the discharge electrodes deep into the side holes of the tunnel wall during tunnel construction. In arid areas without water, it is also very difficult to ensure the continuous presence of water in the holes. In addition, existing electric spark sources generally can only conduct longitudinal wave exploration and cannot conduct shear wave exploration. Summary of the Invention

[0003] In view of this, in order to solve the problems that it is very difficult for existing electric spark sources to insert the discharge electrodes deep into the side holes of the tunnel wall and that they can only conduct longitudinal wave exploration and cannot conduct shear wave exploration, an embodiment of the present invention provides a land shear wave exploration electric spark source device.

[0004] An embodiment of the present invention provides a land shear wave exploration electric spark source device, including:

[0005] A housing with a side opening on one side;

[0006] A water tank fixedly arranged inside the housing and used for storing liquid inside. The water tank is provided with a water outlet on the side close to the side opening;

[0007] An electric spark electrode arranged on the outer wall of the water tank to discharge electricity to the liquid inside the water tank;

[0008] And an anvil arranged at the water outlet. The back of the anvil is connected to the outer wall of the water tank through a plurality of elastic members, and the elastic members tighten the anvil to block the water outlet.

[0009] Further, a plurality of guide posts are arranged at the edge of the back of the anvil, and a plurality of hanging ears are arranged on the outer wall of the water tank. One end of each elastic member is connected to the guide post and the other end is connected to the hanging ear.

[0010] Further, the elastic member is a spring.

[0011] Further, the ear is an arc-shaped plate, and at least two ears are supported on the bottom surface of the housing.

[0012] Further, the water tank is provided with a water pipe joint communicating with its interior and a valve member connected to the water pipe joint.

[0013] Further, an electrode connecting pipe is provided on the outer wall of the water tank, and the electric spark electrode is threadedly connected to the electrode connecting pipe.

[0014] Further, the water tank is cylindrical, and a round head is connected to one end away from the side opening. A spherical groove is provided on the housing on the side opposite to the side opening, and the round head is embedded in the spherical groove and welded.

[0015] Further, a flange joint is provided at one end of the water tank close to the side opening, and the flange joint forms the water outlet.

[0016] Further, a plurality of mounting holes are provided on the flange joint, a linear bearing is installed inside each mounting hole, and each guide post passes through one linear bearing and then connects to the elastic member.

[0017] Further, the housing includes a semi-cylindrical bottom plate and a circular side plate connected to one side of the bottom plate. Lifting ears are provided on both opposite sides of the upper part of the bottom plate, and a plurality of support feet are provided at the bottom of the bottom plate.

[0018] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are as follows:

[0019] 1. For a land shear wave exploration electric spark seismic source device of the present invention, by discharging an electric spark electrode into the liquid in the water tank, the liquid is vaporized within microseconds to generate a shock wave, which impacts the anvil to make the anvil rush outwards, the elastic member elongates, and the anvil transmits the impact force to the ground to excite shear waves, solving the problems that it is difficult for an electric spark seismic source to insert the discharge electrode deep into the side hole of the tunnel wall and there must be water in the hole, reducing the use limitations of the electric spark seismic source in the field, and having a wider range of use scenarios.

[0020] 2. For a land shear wave exploration electric spark seismic source device of the present invention, by adjusting the placement angle, the electric spark seismic source can excite both shear waves and compressional waves, greatly improving the efficiency and accuracy of seismic exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a land shear wave exploration electric spark seismic source device of the present invention;

[0022] Figure 2 is Figure 1 the schematic diagram of the housing in

[0023] Figure 3 is Figure 1 The front view of the middle water tank;

[0024] Figure 4 is Figure 1 The left view of the middle water tank;

[0025] Figure 5 is Figure 1 The schematic diagram of the middle cutting board.

[0026] In the figure: 1. Outer shell; 101. Bottom plate; 102. Side plate; 103. Spherical groove; 104. Lifting lug; 105. Supporting foot; 2. Water tank; 201. Round head; 202. Flange joint; 203. Elastic part; 204. Hanging ear; 205. Linear bearing; 206. Water pipe joint; 207. Valve part; 208. Water outlet; 3. Electric spark electrode; 301. Electrode connecting pipe; 4. Cutting board; 401. Guide post; 402. Positioning hole. Detailed implementation mode

[0027] To make the purpose, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following is a relatively optimal one among multiple possible embodiments of the present invention, aiming to provide a basic understanding of the present invention, but not aiming to confirm the key or decisive elements of the present invention or limit the scope to be protected.

[0028] In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0029] For technologies, methods and devices known to those of ordinary skill in the relevant art, they may not be discussed in detail, but under appropriate circumstances, the said technologies, methods and devices should be regarded as part of the specification.

[0030] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0031] In the description of the present invention, it should be noted that the circuits, electronic components and modules involved in the present invention are all prior arts, and those skilled in the art can fully implement them without further elaboration. The content protected by the present invention does not involve improvements to the internal structure and methods either.

[0032] Further, it should be noted that, unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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 communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Please refer to Figure 1 , an embodiment of the present invention provides a land shear wave exploration electric spark source device, including a housing 1, a water tank 2, an electric spark electrode 3, and an anvil 4.

[0034] The housing 1 mainly plays a role of support and protection. One side of it is provided with a side opening, and the upper part is open. Specifically, as Figure 2 shown, the housing 1 includes a semi-cylindrical bottom plate 101 and a circular side plate 102 connected to one side of the bottom plate 101. In this way, the side opposite to the side plate 102 of the housing 1 forms the side opening.

[0035] In addition, considering the placement and fixation of the land shear wave exploration electric spark source device, lifting lugs 104 are provided on both sides of the upper part of the bottom plate 101. The lifting lugs 104 are used in cooperation with external hooks to tow and move the land shear wave exploration electric spark source device. In addition, a plurality of support feet 105 are provided at the bottom of the bottom plate 101, and the land shear wave exploration electric spark source device is supported on the ground through the support feet 105, making it more stable.

[0036] As Figure 3 and 4 shown, the inside of the water tank 2 is used to store liquid, and the liquid can be water or brine and other liquids. The water tank 2 is fixedly arranged in the housing 1, and a water outlet 208 is provided on one side of the water tank 2 close to the side opening.

[0037] Specifically, the water tank 2 is cylindrical. A round head 201 is connected to one end away from the side opening, and a flange joint 202 is provided at the other end. The flange joint 202 forms the water outlet 208. A spherical groove 103 is provided on the side of the housing 1 opposite to the side opening. The spherical groove is arranged on the surface of the side plate 102, and the round head 201 is embedded in the spherical groove 103 and welded to the spherical groove.

[0038] The electric spark electrode 3 is arranged on the outer wall of the water tank 2, so as to form a discharge chamber inside the water tank 2. In this embodiment, an electrode connecting pipe 301 is provided in the middle of the outer wall of the water tank 2, and the electric spark electrode 3 is threadedly connected to the electrode connecting pipe 301. In this way, the electric spark electrode 3 is provided with an external thread, the electrode connecting pipe 301 is provided with an internal thread, and the electric spark electrode 3 is inserted into the electrode connecting pipe 301 and threadedly connected to the electrode connecting pipe 301. When the electric spark electrode 3 discharges after being powered on, it can discharge the liquid in the water tank 2.

[0039] Considering that the liquid in the water tank 2 needs to be replenished when it is used again, the water tank 2 is provided with a water pipe joint 206 communicating with its interior and a valve member 207 connected to the water pipe joint 206. The water pipe joint 206 is arranged at the upper part of the water tank 2. The valve member 207 can be a ball valve, and the ball valve is also threadedly connected to the water pipe joint 206. By connecting the ball valve to an external water pipe, the liquid in the water tank 2 can be replenished.

[0040] Combined with Figure 5 As shown, the chopping board 4 is arranged at the water outlet 208. The back of the chopping board 4 is connected to the outer wall of the water tank 2 through a plurality of elastic members 203. The elastic members 203 tighten the chopping board 4 to block the water outlet 208, so as to seal the water tank 2.

[0041] Specifically, a plurality of mounting holes are provided on the flange joint 202, and the mounting holes are arranged around the edge of the flange joint 202. A linear bearing 205 is installed inside each mounting hole. A plurality of guide posts 401 are provided at the back edge of the chopping board 4. The number of the guide posts 401 is the same as the number of the linear bearings 205. Each guide post 401 passes through a linear bearing 205 and then connects to the elastic member 203.

[0042] As a preferred technical solution, a plurality of hanging ears 204 are provided on the outer wall of the water tank 2. The hanging ears 204 are evenly distributed circumferentially around the outer wall of the water tank 2. One end of each elastic member 203 is connected to the guide post 401, and the other end is connected to the hanging ear 204.

[0043] Furthermore, the elastic member 203 generally selects a spring. In this embodiment, the elastic member 203 selects a hook spring. A positioning hole 402 is provided at the rear end of the guide post 401. One end of the hook spring hooks the positioning hole 402, and the other end hooks the hanging ear 204 to tightly pull the chopping board 4 stably.

[0044] In addition, considering that the water tank 2 is stably fixed within the housing 1, the hanging ears 204 are arc-shaped plates, and at least two of the hanging ears 204 are supported on the bottom surface of the housing 1, that is, on the inner surface of the bottom plate 101, making the water tank 2 and the housing 1 more fitting and reducing the volume of the land shear wave exploration electric spark seismic source device.

[0045] It should be noted that the land shear wave exploration electric spark seismic source device can adjust the placement angle according to the needs of time exploration to generate shear waves and longitudinal waves. Specifically:

[0046] When it is necessary to generate shear waves, the land shear wave exploration electric spark seismic source device is placed horizontally, so that the anvil 4 is kept vertical and fits against the tunnel side wall. In the initial state, the water tank 2 is filled with liquid, and the elastic member 203 is in a stretched state, making the anvil 4 fit tightly against the water outlet 208, and the liquid in the water tank 2 will not leak out; then control the electric spark electrode 3 to discharge, which will cause the liquid in the water tank 2 to vaporize in microseconds to generate a shock wave. The anvil 4 continues to stretch the elastic member 203 outward and rushes out to generate an impact force, which is transmitted to the tunnel side wall to generate shear waves on the tunnel side wall. At this time, since the anvil 4 is separated from the water outlet 208, the liquid in the water tank 2 flows out, and it is necessary to add liquid through the ball valve again for the next excitation.

[0047] When it is necessary to generate longitudinal waves, just place the land shear wave exploration electric spark seismic source device vertically, make the anvil 4 face down and fit against the ground, and repeat the above process of discharging the electric spark electrode 3 to generate longitudinal waves on the ground.

[0048] In this article, the front, back, up, down and other orientation words are defined based on the positions of the components in the drawings and the positions of the components relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different usage and placement methods. The use of the orientation words should not limit the scope of protection requested in this application.

[0049] Without conflict, the above embodiments and the features in the embodiments in this article can be combined with each other. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A land shear wave exploration electric spark source device, characterized in that Including: A housing with a side opening on one side; A water tank fixedly arranged inside the housing and used for storing liquid inside. A water outlet is provided on one side of the water tank close to the side opening. The water tank is cylindrical, and a hemispherical head is connected to one end of the water tank away from the side opening. A spherical groove is provided on the side of the housing opposite to the side opening, and the hemispherical head is embedded in the spherical groove and connected by welding; An electric spark electrode arranged on the outer wall of the water tank to discharge electricity to the liquid in the water tank; And a chopping board arranged at the water outlet. The back of the chopping board is connected to the outer wall of the water tank through a plurality of elastic members, and the elastic members tighten the chopping board to block the water outlet.

2. The land shear wave exploration electric spark source device according to claim 1, characterized in that: A plurality of guide posts are provided at the edge of the back of the chopping board, and a plurality of hanging ears are provided on the outer wall of the water tank. One end of each elastic member is connected to the guide post and the other end is connected to the hanging ear.

3. The land shear wave exploration electric spark seismic source device according to claim 2, characterized in that: The elastic member is a spring.

4. The land shear wave exploration electric spark source device according to claim 2, characterized in that: The hanging ear is an arc-shaped plate, and at least two hanging ears support on the bottom surface of the housing.

5. The land shear wave exploration electric spark seismic source device according to claim 1, characterized in that: The water tank is provided with a water pipe joint communicated with its interior and a valve member connected to the water pipe joint.

6. The land shear wave exploration electric spark seismic source device according to claim 1, characterized in that: An electrode connecting pipe is provided on the outer wall of the water tank, and the electric spark electrode is threadedly connected to the electrode connecting pipe.

7. The land shear wave exploration electric spark seismic source device according to claim 2, characterized in that: A flange joint is provided at one end of the water tank close to the side opening, and the flange joint forms the water outlet.

8. The land shear wave exploration electric spark source device according to claim 7, characterized in that: A plurality of mounting holes are provided on the flange joint, and a linear bearing is installed inside each mounting hole. Each guide post passes through a linear bearing and then connects to the elastic member.

9. The land shear wave exploration electric spark source device according to claim 1, characterized in that: The housing includes a semi-cylindrical bottom plate and a circular side plate connected to one side of the bottom plate. Lifting lugs are provided on both opposite sides of the upper part of the bottom plate, and a plurality of supporting feet are provided at the bottom of the bottom plate.

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