A target station structure in which a water cooling system and a vacuum clamping system share space

Abstract

The present invention discloses a target station structure in which a water cooling system and a vacuum clamping system share space, comprising a target stand, a target base, a vacuum clamping mechanism, a linear cylinder, and a water cooling pipe. The structure is characterized in that the vacuum clamping mechanism is provided with a pair of "L"-shaped through holes, the pair of "L"-shaped through holes leading downward to a water tank on the upper surface of the target base. The pair of "L"-shaped through holes and the water tank on the upper surface of the target base fit tightly together to form a sealed space that is occupied and shared in a time-sharing manner. The sealed space that is occupied and shared in a time-sharing manner is a vacuuming space and a water cooling space. The present invention organically combines the "L"-shaped channel in the vacuum holding head, the "boat"-shaped water tank on the target base, and the sealing rings respectively arranged on the vacuum holding head and the target base to form a sealed water cooling channel and a sealed vacuuming channel, reducing the overall height of the target station by nearly one-half, simplifying the structure, reducing costs and materials, and reducing the incidence of errors.

Description

Technical Field

[0001] The present invention relates to a target station structure, in particular to a target station structure in which a water cooling system and a vacuum clamping system share a space. Background Art

[0002] The medium energy particles accelerated by the cyclotron can be used to produce isotopes. The existing technology for producing isotopes requires that the beam be directed from the accelerator to a Figure 4a 、 4b , and irradiate the target material fixed on the target base in the lower half of the target station. After the irradiation is completed, the target station moves the target base and the target material out to the hot chamber outside the target station for operation through the vacuum clamping device, the linear cylinder and the rotary cylinder.

[0003] The above process from irradiation to removal requires that the target station design includes two parts: the upper part is the vacuum part. After the irradiation is completed, the target base in the lower part is adsorbed by vacuum and moved out to the hot chamber outside the target stand for operation; the lower part is the water-cooling part. The water-cooling part cools the target base during the irradiation process. The reason for heat dissipation is that huge heat will be released during the irradiation process of the target material, which requires a complete water cooling system to cool the target material.

[0004] The prior art manufactures the upper vacuum pumping section and the lower water cooling section as two separate structures. Since the upper and lower halves need to be connected by vacuum pumping and water cooling pipes, respectively, the upper and lower halves are both relatively thick, making the height of the entire target station approximately that of an upright rectangle.

[0005] The difficulty in designing the target station structure lies in the fact that the space allowed for the overall height of the target station in actual projects is only half of the height of the existing target station. The height of the existing target station needs to be greatly compressed to meet the requirements of the actual project. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention proposes a target station structure in which a water cooling system and a vacuum clamping system share a space, aiming to solve the problem that the height of the existing target station far exceeds the actual height required by the project.

[0007] The present invention adopts the following technical solutions to solve the technical problems:

[0008] A target station structure in which a water cooling system and a vacuum clamping system share space is provided. The target station structure comprises, from bottom to top, a target holder 5, a target base 1, a vacuum clamping mechanism 2, a linear cylinder 3, and a water cooling pipe 4. The target base 1 is used to provide the target material required for the beam to strike the target base 1, and the target material is arranged on the lower surface of the target base. The target holder 5 is used to provide an inclined support for the target base, so that when the beam passes through both sides of the target holder 5, it strikes the target material on the inclined bottom surface of the target base, thereby producing isotopes. The vacuum clamping mechanism 2 is used to absorb the target base. After water cooling and vacuuming are completed, the vacuum clamping mechanism 2, under the action of the linear cylinder 3, absorbs the target base and transfers it to a hot chamber outside the target holder.

[0009] Its characteristics are: the vacuum clamping mechanism 2 is provided with a pair of "L"-shaped through holes, which lead downward to the water groove on the upper surface of the target base 1. The pair of "L"-shaped through holes and the water groove on the upper surface of the target base 1 fit tightly together to form a sealed space that is occupied and shared in a time-sharing manner. The sealed space that is occupied and shared in a time-sharing manner is a vacuum space and a water-cooling space. The sealed space that is occupied and shared in a time-sharing manner reduces the overall height of the target station by nearly one-half.

[0010] Furthermore, the pair of "L"-shaped through holes penetrate from outside to inside, from front to back, and from top to bottom along the two axially symmetrical sides of the vacuum clamping mechanism 2, and penetrate into the lower surface of the vacuum clamping mechanism 2, so that the water in the pair of "L"-shaped through holes flows through the through holes on its lower surface to the water tank of the target base 1 that is tightly fitted with it.

[0011] Furthermore, the bottom of the water tank of the target base 1 is a straight line, with both ends being upwardly curved arcs. The upwardly curved arcs are used to prevent the movement of the water flow from forming turbulence and facilitate smoother passage of the water flow.

[0012] Furthermore, the farthest point of the arc on both sides of the sink is farther than the "L" through hole, which means that the sink wraps the "L"-shaped through hole. In this way, the water flow out of the "L"-shaped through hole will definitely be introduced into the sink and flow out from the other "L"-shaped through hole.

[0013] Furthermore, the target base 1 is a rectangular base with a length of 120 mm, a width of 60 mm, and a height of 6.2 mm. The lower surface has an elliptical boss with a height of 0.6 mm, and the target material is arranged on the elliptical boss; the lower and upper surfaces are both provided with sealing rings.

[0014] Furthermore, the width of the water grooves on the upper surface of the target base 1 is 1 mm, the depth is 5.8 mm, the distance between adjacent water grooves is 1 mm, and the number of water groove teeth is 13.

[0015] Furthermore, the vacuum clamping mechanism 2 is a rectangular parallelepiped with a length of 120 mm, a width of 60 mm, and a height of 45 mm. A deep groove is opened on its bottom surface and extends to two axially symmetrical side circular holes at a 90-degree angle. Its lower surface is tightly fitted with the target base 1 and is equipped with a sealing ring. A deep hole is opened on the top and is connected to the head of the linear cylinder (3) through a circular plate, a fastening nut, and a fixing screw.

[0016] Furthermore, the pipe 4 is a connecting piece with a circular hole on the side of the vacuum clamping mechanism 2 and is fixedly matched with the vacuum clamping mechanism 2 .

[0017] Furthermore, the linear cylinder 3 is a push rod cylinder, and the head of the linear cylinder is fixedly connected to the vacuum clamping mechanism 2.

[0018] Advantages and effects of the present invention

[0019] 1. The internal space of the vacuum clamping device of the present invention can be used by both the water cooling system and the vacuum system. The use state of the internal space of the vacuum clamping device can be easily changed by changing the machine connected by the pipeline.

[0020] 2. The present invention organically combines the "L"-shaped channel in the vacuum holding head, the "boat"-shaped water tank on the target base, and the sealing rings respectively arranged on the vacuum holding head and the target base to form a closed water-cooling channel and a closed vacuum channel. The water-cooling channel and the vacuum channel share one channel, and the two channels are used in a time-sharing manner. Through the above organic combination, the overall height of the target station is reduced by nearly one-half, and costs and materials are reduced, and the error rate is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1a This is a front view of the target station structure of the present invention;

[0022] Figure 1b For the present invention Figure 1a AA cross-section of

[0023] Figure 1c This is a three-dimensional view of the target station structure of the present invention from the first viewing angle;

[0024] Figure 1d This is a perspective view of the target station structure of the present invention from the second viewing angle;

[0025] Figure 2 This is a stereoscopic diagram of the target base of the present invention;

[0026] Figure 2a This is a bottom view of the target base of the present invention;

[0027] Figure 2b This is a top view of the target base of the present invention;

[0028] Figure 2c This is a side view of the target base of the present invention;

[0029] Figure 2d This is the target base size diagram of the present invention;

[0030] Figure 2e This is a comparison diagram of the target base water tank shape of the present invention;

[0031] Figure 3 A three-dimensional diagram of the upper surface of the vacuum clamping head of the present invention;

[0032] Figure 3a A three-dimensional diagram of the lower surface of the vacuum clamping head of the present invention;

[0033] Figure 3b This is a bottom view of the vacuum clamping head of the present invention;

[0034] Figure 3c For the present invention Figure 3b BB cross-section diagram;

[0035] Figure 3d For the present invention Figure 3d AA cross-section of

[0036] Figure 4a This is a schematic diagram of independent vacuum and independent cold water in the prior art;

[0037] Figure 4b This is a schematic diagram of the internal structure of vacuum and water cooling in the prior art;

[0038] Figure 4c A transparent schematic diagram of a water-cooling structure made on a target base using existing technology;

[0039] In the figure, 1: target base; 1-1: upper surface of target base; 1-2: lower surface of target base; 2: vacuum clamping head; 2-1: upper surface of vacuum clamping head; 2-2: side through hole of vacuum clamping head; 2-3: bottom through hole of vacuum clamping head; 3: linear cylinder; 4: pipe; 5: target base bracket; DETAILED DESCRIPTION

[0040] Design principle of the present invention

[0041] The innovation and ingenuity of the present invention are as follows: First, the ingenuity lies in combining the upper and lower parts through an "L"-shaped through-hole. The "L" through-hole passes through the lower surface and leads directly to the water tank on the target base. The combination of the "L"-shaped through-hole and the target base water tank serves as both a water-cooling space and a vacuum space. Second, the design of the target base water tank. In the prior art, the target base upper surface does not have a water tank. Instead, a rectangular space is provided above the target base, which is used for water cooling. The ingenuity of the present invention lies in providing a water tank on the target base upper surface and using the water tank as a passage between the two "L"-shaped through-holes, thereby forming a closed water-cooling space. If no water tank is provided, that is, if the target base upper surface is flat, there will be no passage between the two "L"-shaped through-holes, and the water will be trapped. Without a passage, the water in the "L"-shaped through-holes cannot cool the target base upper surface. The reason why the prior art requires a separate water-cooling space on the target base upper surface is that there is no other better solution and the only option is to use a water tank as a passage. The present invention uses a water trough with a height of only 5.8mm to replace the water tank. However, a water trough alone cannot replace the water tank because the water trough is only 5.8mm high and the water storage capacity is too small to achieve poor heat dissipation effect. Therefore, the present invention can only use it as a channel and use the two "L"-shaped through holes as the "main water tank". The water in the "main water tank" flows continuously to the water trough below, thereby replacing the independent "water storage tank" above the target base in the prior art. Third, the design of the width of the water trough tooth groove. The tooth groove width is only 1mm, which makes the heat dissipation area large and more convenient for heat dissipation; Fourth, the design of the arcs at both ends of the water trough. If the two sides of the water trough are straight lines, the water flow directly hitting the upper surface of the target base will affect the movement of the water flow and form turbulence. Since the place where the turbulence is formed is far away from the center of the heat source (the target material with an elliptical protrusion), the turbulence formed far away from the center of the heat source will affect the water flow velocity at the center of the heat source. The farthest point of the arc on both sides of the sink is designed to be farther than the "L"-shaped through-hole, which means that the sink wraps the "L"-shaped through-hole. In this way, the water flow coming out of the "L"-shaped through-hole will definitely be introduced into the sink and flow out from the other "L"-shaped through-hole.

[0042] Based on the above invention principles, the present invention designs a target station structure in which a water cooling system and a vacuum clamping system share a space.

[0043] A target station structure in which a water cooling system and a vacuum clamping system share space is as follows: Figure 1a 、 1bAs shown in Figures 1c and 1d, the target station structure comprises, from bottom to top, a target holder 5, a target base 1, a vacuum clamping mechanism 2, a linear cylinder 3, and a water-cooling pipe 4; the target base 1 is used to provide the target material required for the beam to hit the target base 1, and the target material is arranged on the lower surface of the target base; the target holder 5 is used to provide an inclined support for the target base, so that when the beam passes through both sides of the target holder 5, the beam hits the target material on the inclined bottom surface of the target base, thereby producing isotopes; the vacuum clamping mechanism 2 is used to adsorb the target base. After the water cooling and vacuuming are completed, the vacuum clamping mechanism 2 adsorbs the target base under the action of the linear cylinder 3 and transfers it to the hot chamber outside the target holder;

[0044] Its characteristics are: the vacuum clamping mechanism 2 is as follows Figure 3a 、 3b As shown in Figures 3c and 3d, a pair of "L"-shaped through holes are provided, which lead downward to the water trough on the upper surface of the target base 1. The pair of "L"-shaped through holes and the water trough on the upper surface of the target base 1 fit tightly together to form a sealed space that is occupied and shared in a time-sharing manner. The sealed space that is occupied and shared in a time-sharing manner is a vacuum space and a water-cooling space. The sealed space that is occupied and shared in a time-sharing manner reduces the overall height of the target station by nearly one-half.

[0045] Supplementary Note 1:

[0046] The vacuum clamping mechanism 2 and the target base 1 are transferred to the hot chamber outside the target stand through the linear cylinder 3 and the rotating cylinder (the rotating cylinder is not shown in the figure); the rotating body of the rotating cylinder is fixedly connected to the cylinder body of the linear cylinder through a connecting plate, and the rotating shaft is fixed on the target station to support the two cylinders and the vacuum clamping head.

[0047] Further, if Figure 2a 、 2b As shown in 2c, 2d, and 2e, the pair of "L"-shaped through holes penetrate from outside to inside, from front to back, and from top to bottom along the two axially symmetrical sides of the vacuum clamping mechanism 2, and penetrate to the lower surface of the vacuum clamping mechanism 2 as shown in Figure 3b As shown, water in a pair of "L"-shaped through holes flows through the through holes on the lower surface to the water tank of the target base 1 that is tightly fitted therewith.

[0048] Supplementary Note 2:

[0049] Figure 3a 、 3b As shown in 3c and 3d, the mark 2-3 in the BB cross-sectional view and the AA cross-sectional view represents the oblong through hole on the bottom surface of the vacuum clamping mechanism 2, and the mark 2-2 in the BB cross-sectional view represents the through hole on the side surface of the vacuum clamping mechanism 2.

[0050] Further, if Figure 2cAs shown, the bottom of the target base 1 water tank is a straight line, with both ends being upwardly curved arcs. The upwardly curved arcs are used to prevent the movement of water flow from forming turbulence and facilitate smoother passage of water flow.

[0051] Supplementary Note 3:

[0052] like Figure 2e As shown in the figure above, the two ends of the water tank are straight lines, while the two ends of the water tank are upward-curved arcs. Because the two ends of the water tank in the upper figure are straight lines, many eddies are generated where the "L" through-hole and the water tank meet. These eddies are far away from the heat dissipation center of the ellipse on the lower surface of the target base, which is not conducive to heat dissipation at the ellipse. Therefore, a method must be found to eliminate the eddies. The two ends of the water tank in the lower figure are curved arcs, which act as a buffer for the water flow, avoiding the accumulation of eddies at this point and allowing the cold water to flow smoothly.

[0053] Furthermore, the farthest point of the arc on both sides of the sink is farther than the "L" through hole, which means that the sink wraps the "L"-shaped through hole. In this way, the water flow out of the "L"-shaped through hole will definitely be introduced into the sink and flow out from the other "L"-shaped through hole.

[0054] Furthermore, the target base 1 is a rectangular base with a length of 120 mm, a width of 60 mm, and a height of 6.2 mm. The lower surface has an elliptical boss with a height of 0.6 mm, and the target material is arranged on the elliptical boss; the lower and upper surfaces are both provided with sealing rings.

[0055] Furthermore, if Figure 2b As shown, the width of the water groove on the upper surface of the target base 1 is 1 mm, the depth is 5.8 mm, the distance between adjacent water grooves is 1 mm, and the number of water groove teeth is 13.

[0056] Furthermore, the vacuum clamping mechanism 2 is a rectangular parallelepiped with a length of 120 mm, a width of 60 mm, and a height of 45 mm. A deep groove is opened on its bottom surface and extends to two axially symmetrical side circular holes at a 90-degree angle. Its lower surface is tightly fitted with the target base 1 and is equipped with a sealing ring. A deep hole is opened on the top and is connected to the head of the linear cylinder (3) through a circular plate, a fastening nut, and a fixing screw.

[0057] Furthermore, the pipe 4 is a connecting piece with a circular hole on the side of the vacuum clamping mechanism 2 and is fixedly matched with the vacuum clamping mechanism 2 .

[0058] Furthermore, the linear cylinder 3 is a push rod linear cylinder, and the head of the linear cylinder is fixedly connected to the vacuum clamping mechanism 2.

[0059] Example 1

[0060] The target station of the present invention has different functions for the target clamping device in the target irradiation state and the target transfer state. The main process of achieving these functions is as follows:

[0061] 1. The target is transported from the transmission pipeline to the target station structure, where it is grasped by a vacuum clamping device. At this point, the pipeline is connected to a vacuum pump, creating a negative pressure inside the vacuum clamping device, which holds the target material in place. The linear cylinder then contracts, transferring the target material to the target holder. This initiates the target irradiation phase.

[0062] 2. As shown in Figure 1, during target irradiation, the linear cylinder pushes out and squeezes the target base against the target holder, tightly fitting the target base and the target holder. The beam irradiates the target, releasing a large amount of heat. Cooling water is then passed through the pipe to cool the target base.

[0063] 3. After target irradiation is complete, the pipeline is connected to a vacuum pump. After draining the cooling water, the space inside the vacuum clamping device is converted to a negative pressure state. At this point, the target base and the vacuum clamping device are tightly fitted and sucked onto the vacuum clamping device. The target base is then transferred to the transfer pipeline via the linear cylinder 3 and the rotary cylinder (the rotary cylinder is not shown in the figure). The rotating body of the rotary cylinder is fixedly connected to the cylinder body of the linear cylinder via a connecting plate. The rotating shaft is fixed to the target station to support the two cylinders and the vacuum clamping head.

[0064] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A target station structure in which a water cooling system and a vacuum clamping system share a space, the target station structure being provided with, from bottom to top, a target stand (5), a target base (1), a vacuum clamping mechanism (2), a linear cylinder (3), and a water cooling pipe (4); the target base (1) being used to provide a target material required for a beam to hit the target base (1), the target material being arranged on the lower surface of the target base; the target stand (5) being used to provide an inclined support for the target base, so that when the beam passes through both sides of the target stand (5), the beam hits the target material on the inclined bottom surface of the target base, thereby producing isotopes; the vacuum clamping mechanism (2) being used to adsorb the target base, and when water cooling and vacuuming are completed, the vacuum clamping mechanism (2) adsorbs the target base under the action of the linear cylinder (3) and transfers the target base to a hot chamber outside the target stand; Its characteristics are: The vacuum clamping mechanism (2) is provided with a pair of "L"-shaped through holes, which lead downward to the water tank on the upper surface of the target base (1). The pair of "L"-shaped through holes and the water tank on the upper surface of the target base (1) are tightly fitted together to form a sealed space that is occupied and shared in a time-sharing manner. The sealed space that is occupied and shared in a time-sharing manner is a vacuuming space and a water-cooling space. The sealed space that is occupied and shared in a time-sharing manner reduces the overall height of the target station by nearly one-half. The pair of "L"-shaped through holes respectively penetrate from outside to inside, from front to back, and from top to bottom along the two axially symmetrical sides of the vacuum clamping mechanism (2), and penetrate to the lower surface of the vacuum clamping mechanism (2), so that water in the pair of "L"-shaped through holes flows through the through holes on the lower surface thereof to the water tank of the target base (1) that is tightly fitted therewith.

2. The target station structure in which the water cooling system and the vacuum clamping system share space according to claim 1, characterized in that: The bottom of the target base (1) water tank is a straight line, and both ends are upwardly curved arcs. The upwardly curved arcs are used to prevent the movement of the water flow from forming turbulence and facilitate smoother passage of the water flow.

3. The target station structure in which the water cooling system and the vacuum clamping system share space according to claim 1, characterized in that: The target base (1) is a rectangular parallelepiped base with a length of 120 mm, a width of 60 mm, and a height of 6.2 mm, and an elliptical boss with a height of 0.6 mm on the lower surface, on which the target material is arranged; Its lower surface and upper surface are both provided with sealing rings.

4. The target station structure in which the water cooling system and the vacuum clamping system share space according to claim 1, characterized in that: The width of the water groove on the upper surface of the target base (1) is 1 mm, the depth is 5.8 mm, the distance between adjacent water grooves is 1 mm, and the number of water groove teeth is 13.

5. The target station structure in which the water cooling system and the vacuum clamping system share a space according to claim 1, characterized in that: The vacuum clamping mechanism (2) is a rectangular parallelepiped with a length of 120 mm, a width of 60 mm, and a height of 45 mm. A deep groove is formed on its bottom surface and extends to two axially symmetrical side circular holes at a 90-degree angle. The lower surface is tightly fitted with the target base (1) and is equipped with a sealing ring. A deep hole is formed on the top surface and is connected to the head of the linear cylinder (3) through a circular plate, a fastening nut, and a fixing screw.

6. The target station structure in which the water cooling system and the vacuum clamping system share a space according to claim 1, characterized in that: The water cooling pipe (4) is a circular hole connector on the side of the vacuum clamping mechanism (2) and is fixedly matched with the vacuum clamping mechanism (2).

7. The target station structure in which the water cooling system and the vacuum clamping system share a space according to claim 1, characterized in that: The linear cylinder (3) is a push rod cylinder, and the head of the linear cylinder is fixedly connected to the vacuum clamping mechanism (2).

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