Distillation valve

Abstract

The utility model discloses a distillation valve which comprises a valve body, a valve plate is rotatably connected in the valve body through a valve shaft, and one end, penetrating through the side wall of the valve body, of the valve shaft is connected with an executing mechanism for driving the valve shaft to rotate, so that a flow channel is opened or closed by the valve plate; the gas-liquid separation chamber is connected to the valve body and used for conducting gas-liquid separation on fluid entering the gas-liquid separation chamber from the valve body. The distillation valve solves the problem that in the background technology, a distillation valve structure in domestic fine chemical engineering is single in function at present.

Description

TECHNICAL FIELD

[0001] The utility model relates to a distillation valve belongs to the chemical pharmacy equipment technical field. BACKGROUND

[0002] In the field of chemical pharmacy, distillation is a widely used key process in solvent recovery, drug purification, separation and purification, and reaction solvent removal. Distillation process separates the components in the mixture by utilizing the difference in boiling points of different substances, thereby obtaining high-purity target products. However, the efficiency and safety of the distillation process are highly dependent on the precise control of the equipment, and the distillation valve, as the core component of the distillation system, plays a crucial role.

[0003] At present, the structure of the distillation valve in domestic fine chemical industry is relatively simple, and most of them can only realize single opening or closing, which is difficult to meet the actual application requirements. Therefore, the existing distillation valve needs to be improved to meet the production requirements. SUMMARY

[0004] The utility model aims at providing a distillation valve, which solves the problem of single structure and function of the distillation valve in domestic fine chemical industry mentioned in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A distillation valve, comprising: a valve body, a valve plate is rotatably connected in the valve body by a valve shaft, one end of the valve shaft penetrating the side wall of the valve body is connected with an actuator for driving the valve shaft to rotate, so as to open or close the flow passage of the valve plate; a gas-liquid separation chamber connected to the valve body for gas-liquid separation of the fluid entering the gas-liquid separation chamber from the valve body.

[0007] Preferably, the gas-liquid separation chamber comprises: an upper shell connected to the valve body; a main shell connected to the upper shell, the main shell and the upper shell together forming a gas-liquid separation cavity, a condenser tube is installed in the gas-liquid separation cavity, the side wall of the main shell is provided with a gas outlet, the shell is provided with a liquid outlet near the bottom, and a cooling liquid inlet and a cooling liquid outlet communicating with the condenser tube are arranged at the bottom of the main shell.

[0008] Preferably, the cross section of the main shell bottom and the shell is arranged at an angle, so that the liquid in the gas-liquid separation cavity can converge to the liquid outlet.

[0009] Preferably, the condenser tube in the gas-liquid separation cavity is spiral-shaped to increase the gas-liquid separation area.

[0010] Preferably, a pressure sensor is installed on the upper shell for detecting the pressure in the gas-liquid separation cavity.

[0011] Preferably, the gas outlet and the liquid outlet are both provided with quick connectors.

[0012] Preferably, the quick connector comprises a connector seat fixedly connected to a given position, a connector joint fixedly connected to the connector seat, a limiting groove formed on the inner wall of the connector joint, and a locking groove formed on the connector joint and communicated with the limiting groove.

[0013] Preferably, the actuating mechanism comprises a servo motor fixedly connected to the valve body through a transmission box, a worm connected to the servo motor, and a gear meshingly connected with the worm and provided with a rotating shaft fixedly connected with the valve shaft.

[0014] The utility model discloses beneficial effects are:

[0015] Compared with the prior art, the utility model discloses that the flange on the valve body is communicated with the target equipment, the servo motor is started through the DCS system, the servo motor drives the valve shaft to rotate, thereby the valve plate fixedly connected with the valve shaft opens the flow channel, the gas on the target equipment enters the gas-liquid separation cavity and contacts the condenser pipe to realize gas-liquid separation, the separated liquid droplets gather at the liquid outlet and then are discharged from the liquid outlet to the next link, and the separated gas is discharged from the gas outlet to the next link, thereby realizing the beneficial effect of gas-liquid separation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the side view structure schematic diagram of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the valve body and the actuating mechanism of the utility model;

[0019] Figure 4 It is the structure schematic diagram of the worm and the gear of the utility model;

[0020] Figure 5 It is the three-dimensional structure schematic diagram of the quick connector of the utility model;

[0021] Figure 6 It is the structure schematic diagram of the condenser pipe of the utility model.

[0022] In the figure: 1, valve body; 2, valve shaft; 3, valve plate; 4, servo motor; 5, transmission box; 6, rotating shaft; 7, upper shell; 8, main shell; 9, gas outlet; 10, liquid outlet; 11, cooling liquid outlet; 12, cooling liquid inlet; 13, clamping seat; 14, clamping joint; 15, limiting groove; 16, locking groove; 17, pressure sensor; 18, condenser pipe; 19, worm; 20, gear. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0024] In the utility model, unless specifically defined and limited, the terms "mounting", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In the utility model, unless specifically defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the utility model. In order to simplify the disclosure of the embodiments of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the embodiments of the utility model can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed per se. In addition, the embodiments of the utility model provide examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0027] As Figures 1-6As shown, a distillation valve comprises a valve body 1, flanges are installed on both sides of the valve body 1, a valve plate 3 is rotationally connected in the valve body 1 through a valve shaft 2, specifically the valve shaft 2 penetrates the side wall of the valve body 1 and is rotationally connected with the side wall of the valve body 1 through a shaft sleeve, one end of the valve shaft 2 extends to the outside of the side wall of the valve body 1 and is connected with an actuator for driving the valve shaft 2 to rotate, the valve plate 3 is opened or closed through the rotation of the valve shaft 2 driven by the actuator; specifically, the actuator comprises a servo motor 4 fixedly connected to the valve body 1 through a transmission box 5, and the servo motor 4 is electrically connected to the PLC of the DCS system, the DCS system is a distributed control system, which is a multi-level computer control system specially designed for industrial automation, and the DCS system is a prior art which will not be described here; a worm 19 is fixedly connected to the output end of the servo motor 4; a gear 20 is meshingly connected with the worm 19, a rotating shaft 6 is connected to the gear 20, one end of the rotating shaft 6 is hollow and provided with a key groove, the valve shaft 2 is provided with a key matched with the key groove, and the rotating shaft 6 is fixedly connected through the key and the key groove; it should be noted that the worm 19 and the gear 20 are installed in the transmission box 5, and the worm 19 is rotationally connected with the transmission box 5 through a bearing, and the gear 20 is rotationally connected with the transmission box 5 through a bearing on the rotating shaft 6.

[0028] A gas-liquid separation chamber is connected to one end of the valve body 1 through a flange, and the gas-liquid separation chamber is used for gas-liquid separation of the fluid entering the gas-liquid separation chamber from the valve body 1. Specifically, the gas-liquid separation chamber comprises an upper shell 7 connected to one end of the valve body 1 through a flange; a main shell 8 connected to the upper shell 7 through bolts, the main shell 8 and the upper shell 7 jointly form a gas-liquid separation cavity, a condenser pipe 18 is installed in the gas-liquid separation cavity, a side wall of the main shell 8 is provided with a gas outlet 9, a plurality of gas outlets 9 can be provided, a liquid outlet 10 is provided near the bottom of the shell, a cooling liquid inlet 12 and a cooling liquid outlet 11 are provided at the bottom of the main shell 8 and communicated with the condenser pipe 18, so that the condenser pipe 18 forms a circulating loop in the gas-liquid separation cavity, and the cooling liquid in the cooling liquid tank enters the condenser pipe 18 from the cooling liquid inlet 12 and then comes out from the cooling liquid outlet 11 to the cooling liquid tank to realize cooling circulation.

[0029] As a preferred embodiment, the bottom of the main shell 8 and the cross section of the shell are arranged at an angle, so that the liquid in the gas-liquid separation cavity can converge to the liquid outlet 10.

[0030] As a preferred embodiment, the condenser pipe 18 is spiral in the gas-liquid separation cavity to increase the gas-liquid separation area.

[0031] As a preferred embodiment, the upper shell 7 is provided with a pressure sensor 17 for detecting the gas pressure in the gas-liquid separation chamber, the pressure sensor 17 is a prior art, which will not be described here, the pressure sensor 17 is connected to the PLC in the DCS system by an electrical signal, and the pressure signal in the gas-liquid separation chamber is converted into an electrical signal and transmitted to the PLC in the DCS system, and the PLC in the DCS system sends a command to the servo motor 4 according to the signal transmitted by the pressure sensor 17, and the servo motor 4 drives the valve shaft 2 to rotate according to the command, so that the valve plate 3 opens or closes the flow channel.

[0032] As a preferred embodiment, the gas outlet 9 and the liquid outlet 10 are both provided with a quick connector to achieve the purpose of quick installation or quick disassembly. Specifically, the quick connector comprises a clamping seat 13 fixedly connected to the gas outlet 9 or the liquid outlet 10, a clamping head 14 fixedly connected to the clamping seat 13, a limiting groove 15 formed on the inner wall of the clamping head 14, a locking groove 16 formed on the clamping head 14, and the limiting groove 15 and the locking groove 16 being in communication. It should be noted that the connecting pipe connected to the quick connector is provided with a locking member adapted to the quick connector, and when in use, the locking member is aligned with the limiting groove 15 and the connecting pipe is rotated to make the locking member move from the limiting groove 15 to the locking groove 16 to achieve the purpose of locking, and finally achieve the purpose of quick connection.

[0033] Principle: first, the flange on the valve body 1 is connected to the target device, the servo motor 4 is started by the DCS system, the servo motor 4 drives the valve shaft 2 to rotate, so that the valve plate 3 fixedly connected to the valve shaft 2 opens the flow channel, the gas on the target device enters the gas-liquid separation chamber through the flow channel and contacts the condenser pipe 18 to realize gas-liquid separation, the separated liquid droplets gather at the liquid outlet 10 and then flow out of the liquid outlet 10 to the next link, and the separated gas flows out of the gas outlet 9 to the next link.

[0034] It should be noted that the sealing members for sealing are provided at each connection, and the sealing members at each connection are prior art, and the material of the distillation valve should strictly meet the requirements of corrosion resistance, high temperature resistance and sanitary grade standards to ensure the safety and quality of drug production, such as 316L stainless steel or nickel-based alloy, which will not be described here.

[0035] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A distillation valve characterized by, The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber. The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber. The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber.

2. A distillation valve according to claim 1, wherein The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber. The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber. The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber.

3. A distillation valve according to claim 2, wherein: The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber.

4. A distillation valve according to claim 3, wherein The utility model relates to a valve body, the valve body is connected with the valve plate through the valve shaft rotation, the valve shaft is connected with the actuating mechanism of driving the valve shaft rotation in one end of valve body lateral wall, reaches the valve plate opening or closing flow channel, gas-liquid separation chamber is connected to the valve body for carrying out gas-liquid separation to the fluid from the valve body into the gas-liquid separation chamber.

5. A distillation valve according to claim 4, wherein: ​ 6. A distillation valve according to claim 5, wherein: ​ 7. A distillation valve according to claim 6, wherein: ​ ​ ​ 8. A distillation valve according to any one of claims 1 to 7, wherein: ​ ​ ​ ​

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