Visual vacuum coil heating device

Abstract

The utility model discloses a visible vacuum coil heating device, belongs to the technical field of test equipment, and aims to overcome the defect that the parameter setting cost of the existing sediment manufacturing equipment is higher. The heating device comprises an inner transparent tube and an outer transparent tube sleeved outside the inner transparent tube, a cooling space is arranged between the inner transparent tube and the outer transparent tube, the cooling space is provided with a water inlet and a water outlet, a coil is wound on the outer wall of the inner transparent tube, and a vacuum cavity is arranged in the inner transparent tube and provided with a graphite tube. The heating device further comprises a temperature detection device and a pressure detection device for detecting the temperature of the graphite pipe and the air pressure of the vacuum cavity. A magnetic field generated by electrifying the coil can heat the graphite pipe, so that specific mixed gas in the vacuum cavity can react to form sediments, the inner transparent pipe and the outer transparent pipe are convenient for observing the state of the sediments, the sediments can reach the optimal state by controlling the temperature and the pressure, and parameters required by the sediments in the optimal state are convenient to obtain; and the parameter acquisition cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to test equipment technical field relates to a visual vacuum coil heating device. BACKGROUND

[0002] The existing first kind of deposit preparation equipment can make specific mixed gas heat reaction to form deposit. The equipment is usually large, and a lot of mixed gas and power are wasted to obtain the parameters corresponding to excellent deposit, and the cost is high. SUMMARY

[0003] The utility model discloses a visual vacuum coil heating device in view of the prior art's problem, and the purpose is to overcome the defect that the parameter setting cost of the existing deposit preparation equipment is large.

[0004] The utility model discloses a visual vacuum coil heating device, which is characterized by an inner transparent tube and an outer transparent tube sleeved outside the inner transparent tube.

[0005] A visual vacuum coil heating device is characterized by an inner transparent tube and an outer transparent tube sleeved outside the inner transparent tube. The inner transparent tube and the outer transparent tube have a cooling space therebetween. The cooling space has a water inlet and a water outlet. A coil is wound on the outer wall of the inner transparent tube. The inner transparent tube is a vacuum cavity and contains a graphite tube. The heating device further includes a temperature detection device and a pressure detection device to detect the temperature of the graphite tube and the air pressure of the vacuum cavity.

[0006] Compared with the existing deposit preparation equipment, the device can more conveniently obtain the parameters required for the deposit to reach the best state through accurate temperature and pressure control and visual observation, and avoids wasting a lot of mixed gas and power to explore the parameters like the existing equipment, thereby effectively reducing the parameter acquisition cost.

[0007] Preferably, the outer transparent tube is provided with sealing covers at both ends to seal the cooling space. The water inlet and the water outlet are arranged on the two sealing covers respectively. The sealing covers are in sealing abutment with the inner transparent tube. By arranging the sealing covers at both ends of the outer transparent tube, the cooling space between the inner transparent tube and the outer transparent tube is closed to form a relatively independent cooling area. The sealing covers are in sealing abutment with the inner transparent tube, and the gap between the sealing covers and the inner transparent tube is filled with sealing material to prevent the cooling liquid from leaking and ensure the sealing property of the cooling space.

[0008] Preferably, the two sealing covers are connected by a first connecting rod, and the sealing covers are partially embedded in the outer transparent tube. The two sealing covers are connected by the first connecting rod, and the rigid structure of the connecting rod stably connects the two sealing covers together to form an integral structural frame. This connection mode enables the two sealing covers to support and constrain each other, thereby ensuring the relative position stability of the sealing covers during the operation of the device.

[0009] Preferably, the two ends of the inner transparent tube protrude from the two ends of the outer transparent tube, and the two ends of the inner transparent tube are provided with inlet sleeves and outlet sleeves, and the inlet sleeves and the outlet sleeves are provided with cooling cavities, and the cooling cavities are provided with inlets and outlets. The two ends of the inner transparent tube protrude from the two ends of the outer transparent tube to provide space for the installation of the inlet sleeves and the outlet sleeves. The inlet sleeves and the outlet sleeves are sleeved on the two ends of the inner transparent tube, and the cooling cavities arranged inside the inlet sleeves and the outlet sleeves form independent cooling channels. The inlets and the outlets of the cooling cavities are connected with an external cooling system. When a cooling medium such as water or other cooling liquid flows into the cooling cavities from the inlets, absorbs heat transferred from the ends of the inner transparent tube during the flow in the cavities, and then flows out from the outlets, the heat is taken away by the circulating flow to achieve cooling of the ends of the inner transparent tube. When the heating device is working, the graphite tube inside the inner transparent tube is heated, which causes the overall temperature of the inner transparent tube to rise, and the heat is transferred to the two ends.

[0010] Preferably, the two ends of the inner transparent tube are provided with baffles sleeved on the ends of the cooling cavities, and the side of the baffles away from the cooling cavities is provided with sealing pads, and the baffles are fixed with pressing plates to press the sealing pads on the baffles. The baffles are sleeved on the two ends of the inner transparent tube and block one end of the cooling cavity, which plays a role in blocking the cooling medium. The sealing pads are arranged on the side of the baffles away from the cooling cavities, and when the pressing plates are fixed on the baffles, the sealing pads will be pressed and deformed to seal the gap between the baffles and other components, thereby achieving the sealing effect and preventing the cooling medium from leaking.

[0011] Preferably, the inner wall of one end of the cooling cavity protrudes from the outer wall of the end, the baffles abut on the protruding part of the inner wall, and the sealing pads abut on the end of the inner wall. The inner wall of one end of the cooling cavity protrudes from the outer wall of the end to form a specific structural step. This step provides a precise positioning position for the baffles, so that the baffles can accurately abut on the protruding part of the inner wall, ensuring the position accuracy of the installation of the baffles.

[0012] Preferably, the baffles of the two ends of the inner transparent tube are connected through a second connecting rod. The baffles, the sealing pads and the pressing plates are assembled into a whole, which can be fixed to the second connecting rod through another two nuts.

[0013] Preferably, the pressing plates and the sealing covers have a spacing space therebetween. In this way, the sealing covers with higher temperature can avoid directly conducting heat to the pressing plates.

[0014] Preferably, the outer end cover of the inlet sleeve is provided with a mounting plate, and the temperature detection device is fixed on the mounting plate.

[0015] The present invention has the following advantages: the magnetic field generated by the energized coil can heat the graphite tube, so that the specific mixed gas in the vacuum chamber can react to form a deposit. The inner and outer transparent tubes facilitate the observation of the deposit state, and make it easy to control the temperature and pressure to make the deposit reach the optimal state. It also facilitates the acquisition of the parameters required for the optimal state of the deposit, and reduces the cost of parameter acquisition. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the heating device.

[0017] Figure labeling: 100, inner transparent tube; 110, coil; 120, graphite tube; 130, inlet sleeve; 140, outlet sleeve; 150, cooling chamber; 160, baffle; 161, sealing gasket; 162, pressure plate; 163, second connecting rod; 170, mounting plate; 200, outer transparent tube; 210, sealing cover; 211, water inlet; 212, water outlet; 213, cooling space; 220, first connecting rod; 310, temperature detection device; 320, pressure detection device. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] This embodiment provides a visible vacuum coil 110 heating device, such as... Figure 1 As shown, an inner transparent tube 100 and an outer transparent tube 200 are sleeved outside the inner transparent tube 100. A cooling space 213 is provided between the inner transparent tube 100 and the outer transparent tube 200. The cooling space 213 has an inlet 211 and an outlet 212. A coil 110 is wound around the outer wall of the inner transparent tube 100. The inner transparent tube 100 contains a vacuum chamber and a graphite tube 120. The heating device also includes a temperature detection device 310 and a pressure detection device 320 to detect the temperature of the graphite tube 120 and the air pressure of the vacuum chamber. The temperature detection device 310 can be a thermocouple or an infrared temperature sensor. The pressure detection device 320 is connected to the vacuum chamber.

[0020] The inner transparent tube 100 and the outer transparent tube 200 are both glass tubes. The inner glass tube is first evacuated and then filled with various gases as required. When the coil 110 is powered, a changing magnetic field is generated. According to the principle of electromagnetic induction, the graphite tube 120 in the magnetic field will generate an induced current. Since the graphite tube 120 itself has a certain resistance, the current will generate Joule heat when passing through, thereby achieving heating of the graphite tube 120. At the same time, the inner transparent tube 100 is a vacuum cavity. In this vacuum environment, the heated graphite tube 120 will make the mixed gas gain enough energy and then react to form a deposit. The temperature detection device 310 and the pressure detection device 320 monitor the temperature of the graphite tube 120 and the air pressure of the vacuum cavity in real time, so as to accurately control the heating process and the reaction environment.

[0021] The design of the inner transparent tube 100 and the outer transparent tube 200 allows the operator to directly observe the formation state and process of the deposit in the vacuum cavity, facilitating timely adjustment of the reaction conditions. The cooling space 213 between the inner transparent tube 100 and the outer transparent tube 200 is circulated and cooled through the water inlet 211 and the water outlet 212, ensuring the stability and safety of the device during the heating process and preventing the inner transparent tube 100 from overheating and damaging the equipment.

[0022] Compared with existing deposit making equipment, the device can more conveniently obtain the parameters required to make the deposit reach the optimal state through precise temperature and pressure control and visual observation, avoiding the waste of a large amount of mixed gas and electricity to explore parameters as in existing equipment, thereby effectively reducing the parameter acquisition cost.

[0023] As shown in Figure 1 The outer transparent tube 200 is provided with a sealing cover 210 at both ends to seal the cooling space 213. The water inlet 211 and the water outlet 212 are arranged on the two sealing covers 210, respectively. The sealing cover 210 is in sealing abutment with the inner transparent tube 100. By arranging the sealing cover 210 at both ends of the outer transparent tube 200, the cooling space 213 between the inner transparent tube 100 and the outer transparent tube 200 is closed to form a relatively independent cooling area. The sealing cover 210 is in sealing abutment with the inner transparent tube 100. A sealing material such as a rubber sealing ring is used to fill the gap between the sealing cover 210 and the inner transparent tube 100, preventing the cooling liquid from leaking and ensuring the sealing of the cooling space 213. The cooling liquid is stably circulated in the cooling space 213, continuously and effectively removing the excess heat generated by the inner transparent tube 100 during the heating process, preventing the inner transparent tube 100 from being damaged due to excessive temperature, and ensuring that the heating device can stably operate within the appropriate temperature range.

[0024] Two of the sealing covers 210 are connected by a first connecting rod 220, which is locked by a nut and abuts against the outer transparent tube 200, and the sealing covers 210 are partially embedded in the outer transparent tube 200. Two of the sealing covers 210 are connected by the first connecting rod 220, and the rigidity of the first connecting rod 220 stably abuts the two sealing covers 210 against the outer transparent tube 200 to form an integral structural framework. This connection mode enables the two sealing covers 210 to support and constrain each other through the first connecting rod 220, thereby ensuring the relative position stability of the sealing covers 210 during the operation of the device. The partial embedding of the sealing covers 210 in the outer transparent tube 200 is achieved by mechanical cooperation, so that the sealing covers 210 and the outer transparent tube 200 are tightly connected, the friction and mechanical connection strength between the sealing covers 210 and the outer transparent tube 200 are increased, and the loosening or displacement of the sealing covers 210 during the operation of the device is prevented. In other alternative embodiments, the sealing covers 210 can be directly bonded to the outer transparent tube 200.

[0025] The inner transparent tube 100 protrudes from both ends of the outer transparent tube 200, and the two ends of the inner transparent tube 100 are provided with an inlet sleeve 130 and an outlet sleeve 140, and the inlet sleeve 130 and the outlet sleeve 140 are both provided with a cooling cavity 150, and the cooling cavity 150 is provided with an inlet and an outlet. The protrusion of the inner transparent tube 100 from both ends of the outer transparent tube 200 provides space for the installation of the inlet sleeve 130 and the outlet sleeve 140. The inlet sleeve 130 and the outlet sleeve 140 are sleeved on the two ends of the inner transparent tube 100, and the cooling cavity 150 arranged inside forms an independent cooling channel. The inlet and outlet of the cooling cavity 150 are connected with an external cooling system, and when a cooling medium such as water or other cooling liquid flows into the cooling cavity 150 from the inlet, absorbs the heat transferred from the end of the inner transparent tube 100 during the flow in the cavity, and then flows out from the outlet, the heat is taken away by the circulation flow to achieve the cooling of the end of the inner transparent tube 100. When the heating device is working, the graphite tube 120 inside the inner transparent tube 100 heats up, and the heat is transferred to both ends. The cooling cavity 150 of the inlet sleeve 130 and the outlet sleeve 140 utilizes the principle of heat conduction to transfer the heat from the end of the inner transparent tube 100 to the cooling medium, and the heat is taken away by the circulation flow of the cooling medium, thereby controlling the temperature of the end of the inner transparent tube 100 and maintaining the temperature balance of the inner transparent tube 100. This also facilitates the installation of temperature detection devices 310 and other components at a distance away from the graphite tube 120, and reduces the influence of high temperature on the components.

[0026] The two ends of the inner transparent tube 100 are sleeved with the baffle 160 which blocks one end of the cooling cavity 150. The side of the baffle 160 which is away from the cooling cavity 150 is provided with a sealing gasket 161. The pressing plate 162 is fixed on the baffle 160 to press the sealing gasket 161 on the baffle 160. The baffle 160 is sleeved on the two ends of the inner transparent tube 100 and blocks one end of the cooling cavity 150, thereby playing a role of blocking the cooling medium. The sealing gasket 161 is arranged on the side of the baffle 160 which is away from the cooling cavity 150. When the pressing plate 162 is fixed on the baffle 160, the sealing gasket 161 is deformed by the pressure applied by the pressing plate 162, thereby sealing the gap between the baffle 160 and other components, so as to achieve the sealing effect and prevent the cooling medium from leaking. The pressing plate 162 is fixed on the baffle 160 by bolts, so that the sealing gasket 161 is tightly pressed on the baffle 160, thereby ensuring that the sealing gasket 161 is always in a state of being pressed and maintaining good sealing performance.

[0027] The inner wall of one end of the cooling cavity 150 protrudes from the outer wall of the end. The baffle 160 is abutted on the protruding part of the inner wall, and the sealing gasket 161 is abutted on the end of the inner wall. The inner wall of one end of the cooling cavity 150 protrudes from the outer wall of the end, thereby forming a specific structural step. The step provides a precise positioning position for the baffle 160, so that the baffle 160 can be accurately abutted on the protruding part of the inner wall, thereby ensuring the position accuracy of the installation of the baffle 160. At the same time, the structural design also limits the movement range of the baffle 160, so that the baffle 160 can maintain a stable position during the operation of the device. The sealing gasket 161 is abutted on the inner wall, so that the gap between the inner wall and the baffle 160 is sealed.

[0028] The baffles 160 at the two ends of the inner transparent tube 100 are connected by the second connecting rod 163. The baffle 160, the sealing gasket 161 and the pressing plate 162 are assembled to form an integral whole, which can be fixed on the second connecting rod 163 by another two nuts. In other optional embodiments, the second connecting rod 163 can be provided with a step, so that after the end of the second connecting rod 163 passes through the pressing plate 162 and the baffle 160, the pressing plate 162 can be abutted on the step or the baffle 160 is abutted on the step.

[0029] Further, the pressing plate 162 and the sealing cover 210 have a spacing space therebetween. In this way, the sealing cover 210 with a relatively high temperature avoids directly conducting heat to the pressing plate 162. The outer end cover of the inlet sleeve pipe 130 is provided with the mounting plate 170, and the temperature detection device 310 is fixed on the mounting plate 170.

Claims

1. A visible vacuum coil heating device, characterized in that, The device includes an inner transparent tube (100) and an outer transparent tube (200) sleeved outside the inner transparent tube (100). A cooling space (213) is provided between the inner transparent tube (100) and the outer transparent tube (200). The cooling space (213) has an inlet (211) and an outlet (212). A coil (110) is wound on the outer wall of the inner transparent tube (100). The inner transparent tube (100) contains a vacuum chamber and a graphite tube (120). The heating device also includes a temperature detection device (310) and a pressure detection device (320) to detect the temperature of the graphite tube (120) and the air pressure of the vacuum chamber.

2. The visible vacuum coil heating device according to claim 1, characterized in that, The outer transparent tube (200) has sealing caps (210) at both ends to seal the cooling space (213). The water inlet (211) and the water outlet (212) are respectively set on the two sealing caps (210). The sealing caps (210) are sealed and abut against the inner transparent tube (100).

3. The visible vacuum coil heating device according to claim 2, characterized in that, The two sealing caps (210) are connected by a first connecting rod (220), and the sealing caps (210) are partially embedded in the outer transparent tube (200).

4. A visible vacuum coil heating device according to claim 2, characterized in that, The two ends of the inner transparent tube (100) protrude from the two ends of the outer transparent tube (200). The two ends of the inner transparent tube (100) are provided with an inlet sleeve (130) and an outlet sleeve (140). Both the inlet sleeve (130) and the outlet sleeve (140) are provided with a cooling chamber (150). The cooling chamber (150) is provided with an inlet and an outlet.

5. A visible vacuum coil heating device according to claim 4, characterized in that, Both ends of the inner transparent tube (100) are fitted with baffles (160) that block one end of the cooling cavity (150). A sealing gasket (161) is provided on the side of the baffle (160) facing away from the cooling cavity (150). A pressure plate (162) is fixed on the baffle (160) to press the sealing gasket (161) onto the baffle (160).

6. A visible vacuum coil heating device according to claim 5, characterized in that, The inner wall of one end of the cooling cavity (150) protrudes from the outer wall of that end, the baffle (160) abuts against the protruding part of the inner wall, and the sealing gasket (161) abuts against the end of the inner wall.

7. A visible vacuum coil heating device according to claim 5, characterized in that, The baffles (160) at both ends of the inner transparent tube (100) are connected by a second connecting rod (163).

8. A visible vacuum coil heating device according to claim 5, characterized in that, There is a gap between the pressure plate (162) and the sealing cover (210).

9. A visible vacuum coil heating device according to claim 4, characterized in that, The outer end of the inlet sleeve (130) is covered with a mounting plate (170), and the temperature detection device (310) is fixed on the mounting plate (170).

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