Efficient purification device for high-purity octafluorocyclobutane

Abstract

The utility model discloses an efficient purification device for high-purity octafluorocyclobutane, which belongs to the technical field of purification devices and comprises a supporting disc, a supporting rod is fixedly connected to the top end of the supporting disc, a top cover is arranged at one end, far away from the supporting disc, of the supporting rod, and a purification assembly is arranged between the supporting disc and the top cover. According to the technical scheme, when an impurity decomposer is gradually saturated and inactivated, a worker can control the purification box to rotate by 180 degrees, so that the positions of the pair of purification tanks are exchanged, the impurity decomposer in the replaced placement barrel can continue to react with octafluorocyclobutane, and the impurity decomposer is separated from the purification tank, so that the impurity decomposer is separated from the octafluorocyclobutane. And in addition, the placing barrel is moved out of the purification tank, so that the impurity decomposing agent in the placing barrel is replaced, and the impurity decomposing agent is placed into the purification tank again for standby application, the time of purification work stop and production interruption can be shortened to the maximum extent, and the utilization rate of the purification device is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to purification device technical field more specifically, relate to a kind of high-purity octafluorocyclobutane high-efficiency purification device. BACKGROUND

[0002] Octafluorocyclobutane, also known as perfluorocyclobutane, is a green and environmentally friendly special gas with stable chemical properties, no toxicity and no ozone influence, and low greenhouse effect. It is mainly used in high-voltage insulation, ultra-large scale integrated circuit etchant, mixed refrigerant instead of chlorofluorocarbon, aerosol, cleaning agent (for electronic industry), spray, heat pump working fluid, etc. At present, by using purification device, impurities in crude octafluorocyclobutane containing impurities are basically removed, so that the purity of octafluorocyclobutane is higher.

[0003] Chinese patent authorization announcement No. CN211886772U discloses a kind of purification device of high-purity octafluorocyclobutane, the scheme is by screw conveyor and is sent to the purification pipe of one side of air inlet of impurity decomposing agent, impurity decomposing agent is sent to the purification pipe of one side of exhaust port by purification pipe, due to the effect of air flow, it falls into conveying pipe, wherein octafluorocyclobutane moves with impurity decomposing agent, enters purification pipe from air inlet pipe and then is discharged from exhaust pipe, the device is simple in structure, and the device is automated, so that the efficiency of purifying octafluorocyclobutane is improved.

[0004] In the purification process, impurity decomposing agent can adsorb and decompose impurities in octafluorocyclobutane, and with the passage of time, impurity decomposing agent will gradually saturate and deactivate, and cannot continue to effectively remove impurities, so that impurity decomposing agent needs to be replaced, and the purification pipe and conveying pipe need to be disassembled during the replacement process. The process needs to consume a certain amount of time, which leads to the stop of octafluorocyclobutane purification for a long time, thereby affecting the continuity and efficiency of octafluorocyclobutane purification, therefore, a kind of high-purity octafluorocyclobutane high-efficiency purification device is proposed to solve the above problems. Utility model content

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a kind of high-purity octafluorocyclobutane high-efficiency purification device, when impurity decomposing agent gradually saturates and deactivates, the staff can make 180° rotation to purification tank, so that the position of a pair of purification grooves is exchanged, the impurity decomposing agent in the replaced placing cylinder can continue to react with octafluorocyclobutane, so as to achieve the purpose of continuous purification, in addition, by moving the placing cylinder out of the purification groove, the impurity decomposing agent in the placing cylinder is replaced and re-placed in the purification groove for standby, which can minimize the stop time of purification work and production interruption, and improve the utilization rate of purification device.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] A high-purity octafluorocyclobutane efficient purification device, including support disc, the top of support disc is fixedly connected with support rod, the end away from support disc of support rod is provided with top cover, the support disc with top cover is provided with purification assembly, the top of top cover is fixedly connected with air inlet pipe, the bottom of support disc is fixedly connected with air outlet pipe;

[0010] The purification assembly includes a purification tank, a pair of purification grooves are formed in the purification tank, a placement cylinder is arranged in the purification grooves, a reserved hole is formed in the purification tank, and the support rod penetrates the reserved hole and is rotationally connected with the reserved hole.

[0011] Further, the inner wall of the purification groove is fixedly connected with a stop ring near the lower position, and the stop ring abuts against the bottom end of the placement cylinder.

[0012] Further, the top cover is provided with a mounting hole, the mounting hole is matched with the hole diameter of the purification groove, and the inner wall of the placement cylinder is fixedly connected with a plurality of pull rings.

[0013] Further, the top end of the top cover is rotationally connected with a sealing cover, and the sealing cover covers the upper side of the mounting hole.

[0014] Further, the support rod penetrates the top cover and is slidingly connected with the top cover, the top end of the support rod is fixedly connected with a limiting block, the support rod is sleeved with a spring, and the two ends of the spring are fixedly connected with the top cover and the limiting block.

[0015] Further, the support disc and the top cover are both provided with a sealing ring at the end close to each other, and the sealing ring abuts against the purification tank.

[0016] Further, the outer end of the purification tank is fixedly connected with an outer gear ring, the top end of the support disc is fixedly connected with a motor, and the output end of the motor is fixedly connected with a gear meshingly connected with the outer gear ring.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] When the impurity decomposing agent is gradually saturated and deactivated, the staff can control the purification box to rotate 180°, so that the positions of the pair of purification grooves are exchanged, and the impurity decomposing agent in the replaced placement cylinder can continue to react with octafluorocyclobutane, so that the purpose of continuous purification is achieved, and in addition, by moving the placement cylinder out of the purification groove, the impurity decomposing agent in the placement cylinder is replaced and re-placed in the purification groove for standby, the time of stopping purification work and interrupting production can be minimized, and the utilization rate of the purification device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 It is a local structure schematic view of the utility model;

[0022] Figure 3 It is a cross section structure schematic view of the purification box of the utility model.

[0023] Explanation of reference numerals in the drawing:

[0024] 1, support disc; 2, purification assembly; 21, purification box; 22, reserved hole; 23, purification groove; 24, blocking ring; 25, placement cylinder; 26, pull ring; 27, outer gear ring; 3, top cover; 4, sealing cover; 5, air inlet pipe; 6, air outlet pipe; 7, motor; 8, gear; 9, sealing ring; 10, support rod; 11, spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve / interface", "connection" and so on, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figures 1-3 A kind of high-purity octafluorocyclobutane high-efficiency purification device, including support disc 1, the top of support disc 1 is fixedly connected with support rod 10, support rod 10 is provided with top cover 3 away from support disc 1, and purification assembly 2 is arranged between support disc 1 and top cover 3, and the top of top cover 3 is fixedly connected with gas inlet pipe 5, and the bottom of support disc 1 is fixedly connected with gas outlet pipe 6;

[0030] The purification assembly 2 includes a purification tank 21, a pair of purification grooves 23 are formed in the purification tank 21, a placement cylinder 25 is arranged in the purification groove 23, a reserved hole 22 is formed in the purification tank 21, and the support rod 10 penetrates the reserved hole 22 and is rotationally connected with the reserved hole 22.

[0031] The present scheme is used for removing impurities contained in octafluorocyclobutane, so that the purity of octafluorocyclobutane is higher, the impurity decomposing agent is arranged in the placement cylinder 25, the impurity decomposing agent can adsorb and decompose impurities in octafluorocyclobutane, and the purification effect is achieved.

[0032] Specifically, the octafluorocyclobutane to be purified is introduced into the gas inlet pipe 5 and discharged into one of the purification grooves 23, at this time, the octafluorocyclobutane reacts with the impurity decomposing agent in the placement cylinder 25, adsorbs and decomposes the impurities in the octafluorocyclobutane, and the purified octafluorocyclobutane is discharged through the gas outlet pipe 6, when the impurity decomposing agent is gradually saturated and inactivated, the staff can control the purification tank 21 to rotate 180°, so that the positions of the pair of purification grooves 23 are exchanged, and the impurity decomposing agent in the replaced placement cylinder 25 can continue to react with the octafluorocyclobutane, so that the purpose of continuous purification is achieved.

[0033] The bottom of the placement cylinder 25 is provided with a filter hole, which can trap impurities in the octafluorocyclobutane on the one hand, and can ensure the circulation of the gas on the other hand, and the size of the filter hole is smaller than the size of the impurity decomposing agent.

[0034] It should be noted that the top end of the purification tank 21 is also provided with a pair of annular sealing gaskets, which are located at the top openings of the pair of purification grooves 23, and the pair of annular sealing gaskets are in close abutment with the bottom end of the top cover 3. Therefore, when the impurity decomposing agent including iron oxide and alkaline earth metal compounds is replaced after saturation and deactivation, the purification grooves 23 in the purification state are still in a sealed state.

[0035] Please refer to Figure 3 The inner wall of the purification groove 23 is fixedly connected with a baffle ring 24 near the lower position, and the baffle ring 24 is in abutment with the bottom end of the placement cylinder 25, which is used to provide support for the placement cylinder 25.

[0036] Please refer to Figures 2-3 A mounting hole is formed in the top cover 3, and the mounting hole is matched with the hole diameter of the purification groove 23. The inner wall of the placement cylinder 25 is fixedly connected with a plurality of pull rings 26. When the positions of the pair of purification grooves 23 are exchanged, the staff can remove the placement cylinder 25 from the purification groove 23, so as to replace the impurity decomposing agent in the placement cylinder 25 and re-place it in the purification groove 23 for standby.

[0037] Please refer to Figure 2 The top end of the top cover 3 is rotatably connected with a sealing cover 4, and the sealing cover 4 covers the mounting hole.

[0038] In this embodiment, the sealing cover 4 is used to close the mounting hole, and the sealing cover 4 can be fixed to the top of the top cover 3 by magnetic attraction.

[0039] Please refer to Figure 2 The support rod 10 penetrates through the top cover 3 and is slidably connected with the top cover 3. The top end of the support rod 10 is fixedly connected with a limiting block. The outer surrounding of the support rod 10 is provided with a spring 11, and the two ends of the spring 11 are fixedly connected with the top cover 3 and the limiting block, respectively. The end of the support disc 1 and the top cover 3 away from each other is provided with a sealing ring 9, and the sealing ring 9 is in abutment with the purification tank 21.

[0040] In this embodiment, the spring 11 can provide a downward elastic force to the top cover 3 by using its toughness, so that the top cover 3 tightly covers the top of the purification assembly 2. By providing the sealing ring 9, a sealing effect is achieved, and the octafluorocyclobutane is prevented from being discharged from the gaps between the support disc 1 and the purification assembly 2 and between the purification assembly 2 and the top cover 3 during the purification process.

[0041] Please refer to Figure 1 and Figure 3 The outer end of the purification tank 21 is fixedly connected with an outer gear ring 27, and the top end of the support disc 1 is fixedly connected with a motor 7. The output end of the motor 7 is fixedly connected with a gear 8 which is meshingly connected with the outer gear ring 27.

[0042] In the embodiment, the motor 7 is arranged to control the gear 8 to rotate, and the gear 8 is engaged with the outer gear ring 27, so as to control the purification box 21 to rotate 180°, and the positions of the pair of purification grooves 23 are exchanged.

[0043] Since the support rod 10 is slidingly connected with the top cover 3, i.e., the support rod 10 and the top cover 3 cannot rotate relative to each other, the top cover 3 will not rotate relative to the support rod 10 during the rotation of the purification box 21.

[0044] Working principle: the octafluorocyclobutane to be purified is introduced into the gas inlet pipe 5 and discharged into one of the purification grooves 23, at this time, the octafluorocyclobutane reacts with the impurity decomposition agent in the placement cylinder 25 to adsorb and decompose the impurities in the octafluorocyclobutane, and the purified octafluorocyclobutane is discharged through the gas outlet pipe 6, when the impurity decomposition agent is gradually saturated and inactivated, the motor 7 is arranged to control the gear 8 to rotate, and the gear 8 is engaged with the outer gear ring 27, so as to control the purification box 21 to rotate 180°, and the positions of the pair of purification grooves 23 are exchanged, the impurity decomposition agent in the replaced placement cylinder 25 can continue to react with the octafluorocyclobutane, so as to achieve the purpose of continuous purification, and then the placement cylinder 25 can be removed from the purification groove 23, so as to replace the impurity decomposition agent in the placement cylinder 25, and re-insert the placement cylinder 25 into the purification groove 23 for standby.

[0045] The above merely describes the preferred embodiments of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the improved concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A high-purity octafluorocyclobutane high-efficiency purification device, comprising a support disk (1), characterized in that: A support rod (10) is fixedly connected to the top of the support plate (1). A top cover (3) is provided at the end of the support rod (10) away from the support plate (1). A purification component (2) is provided between the support plate (1) and the top cover (3). An air inlet pipe (5) is fixedly connected to the top of the top cover (3). An air outlet pipe (6) is fixedly connected to the bottom of the support plate (1). The purification component (2) includes a purification box (21), a pair of purification troughs (23) are provided inside the purification box (21), a placement cylinder (25) is provided inside the purification trough (23), a reserved hole (22) is provided inside the purification box (21), and the support rod (10) passes through the reserved hole (22) and is rotatably connected to the reserved hole (22).

2. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: A retaining ring (24) is fixedly connected to the inner wall of the purification tank (23) near the bottom, and the retaining ring (24) abuts against the bottom end of the placement cylinder (25).

3. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: The top cover (3) has an installation hole that matches the diameter of the purification tank (23). The inner wall of the placement cylinder (25) is fixedly connected with multiple pull rings (26).

4. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: The top of the top cover (3) is rotatably connected to a sealing cover (4), which covers the mounting hole.

5. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: The support rod (10) passes through the top cover (3) and is slidably connected to the top cover (3). A limiting block is fixedly connected to the top end of the support rod (10). A spring (11) is sleeved around the support rod (10). The two ends of the spring (11) are fixedly connected to the top cover (3) and the limiting block, respectively.

6. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: The support plate (1) and the top cover (3) are each equipped with a sealing ring (9) at their respective ends, and the sealing ring (9) abuts against the purification box (21).

7. The high-purity octafluorocyclobutane high-efficiency purification device according to claim 1, characterized in that: An external gear ring (27) is fixedly connected to the outer end of the purification box (21), and a motor (7) is fixedly connected to the top of the support plate (1). A gear (8) that meshes with the external gear ring (27) is fixedly connected to the output end of the motor (7).

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