Safety protection device of chemical equipment

Abstract

The utility model is applicable to the field of chemical protection, and provides a safety protection device of chemical equipment, which comprises a chemical equipment main body and a pressure relief assembly, the chemical equipment main body comprises a tank body, a feed pipe and a discharge pipe, and the pressure relief assembly comprises a pressure relief cylinder, a motor, a plurality of connecting rods and a sealing gasket. A main shaft of the motor movably penetrates through the pressure relief cylinder and extends into the pressure relief cylinder to be fixedly connected with the lead screw, a movable disc is movably installed on the lead screw, and the lower end of the connecting rod movably penetrates through the movable disc and extends to the position below the movable disc to be fixedly connected with the pressing plate. The pressure plate and the sealing gasket are connected through the connecting rod, so that the closing state of the sealing gasket and the limiting ring is controlled, the pressure relief effect can be achieved through the pressure relief pipe when the pressure in the tank body is too large, meanwhile, the arranged connecting rod is matched with the spring, certain pressure relief capacity can still be achieved when the motor breaks down, and therefore the stability of the device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of chemical protection, especially relates to a safety protection device of chemical equipment. BACKGROUND

[0002] In the chemical production process, in order to guarantee the safety of personnel, environment and equipment, various safety protection devices will be usually installed on the chemical equipment. When the equipment fails, these devices can effectively work, thereby improving the safety of the production process, and also prolonging the service life of the equipment.

[0003] In the chemical production equipment and storage tank, an emergency pressure relief device is usually used to deal with the situation that the pressure of equipment or pipeline is too high. The device is driven by mechanical or electric power, and can automatically release pressure to prevent the equipment from breaking, exploding or other accidents. However, the existing pressure relief device is not convenient to maintain, and when a fault occurs, it may not effectively release pressure, and the stability of the device is poor. SUMMARY

[0004] The utility model embodiment is to provide a kind of safety protection device of chemical equipment, to solve the problem proposed in background art.

[0005] The utility model embodiment is implemented as follows: a kind of safety protection device of chemical equipment, including chemical equipment main body and the pressure relief assembly installed on chemical equipment main body, the chemical equipment main body includes tank body, feed pipe and discharge pipe, the feed pipe and discharge pipe are respectively installed on tank body upper end symmetry, the pressure relief assembly is fixedly installed in tank body top and located detection assembly side, the pressure relief assembly includes pressure relief cylinder, motor, multiple connecting rods and sealing pad, the pressure relief cylinder is fixedly provided with limit ring in, the pressure relief cylinder side is fixedly installed with pressure relief pipe, the motor is fixedly installed in pressure relief cylinder top, the motor spindle is movably penetrated pressure relief cylinder and extends into pressure relief cylinder and is fixedly connected with screw rod, the screw rod is movably installed with movable disc on, multiple the connecting rods are movably installed on movable disc, the connecting rod upper end is fixedly provided with limit block, the connecting rod lower end is movably penetrated movable disc and extends to movable disc below and is fixedly connected with pressing plate, the sealing pad is fixedly installed in pressing plate lower end and is extruded contact with limit ring, spring is fixedly set between movable disc and pressing plate on the outer side of connecting rod.

[0006] As a further scheme of the utility model: the pressure relief cylinder is provided as cylindrical structure, the outer diameter of movable disc, pressing plate and sealing pad is same with the inner diameter of pressure relief cylinder.

[0007] As a further scheme of the utility model: the limit ring is provided as annular structure, the sealing pad is provided as elastic material, the sealing pad lower end is provided with the obstruction block matched with limit ring.

[0008] As a further scheme of the utility model: the movable disc side annular fixedly provided with a plurality of clamping blocks, the pressure relief cylinder side corresponding clamping block fixedly provided with a movable groove, the clamping block is movably clamped in the movable groove.

[0009] As a further scheme of the utility model: the tank body upper end middle part still fixedly installed with a detection assembly, the detection assembly includes a sensor and a connecting cable.

[0010] As a further scheme of the utility model: the sensor is fixedly installed on the tank body upper end middle part, and the lower end of the sensor penetrates the tank body top and extends into the tank body, and the sensor is connected with an external control system through the connecting cable.

[0011] The utility model has the advantages of:

[0012] 1. The utility model discloses a kind of safety protection devices of chemical equipment, motor drive screw rod is rotated by being set, movable disc is driven to move up and down, sealing pad and closing state of limit ring are controlled by connecting rod connecting pressing plate and sealing pad, so that it can be when the pressure in tank body is too large by pressure relief pipe play pressure relief function, simultaneously, connecting rod cooperation spring being set, still can have certain pressure relief capacity when motor fails, so as to ensure the stability of device.

[0013] 2. The utility model discloses a kind of safety protection devices of chemical equipment, by setting movable disc, pressing plate and sealing pad outer diameter as with pressure relief cylinder inner diameter, so that movable disc, pressing plate and sealing pad are moved up and down, simultaneously, also have certain sealing effect.

[0014] 3. The utility model discloses a kind of safety protection devices of chemical equipment, by setting clamping block cooperation movable groove, the stability of movable disc movement can be improved, so as to reduce the resistance when motor drive screw rod rotates, indirectly improve the service life of motor.

[0015] 4. The utility model discloses a kind of safety protection devices of chemical equipment, by setting sensor, the state in tank body is detected, and is adjusted by the feedback of connected external control system, so that first time drive motor rotates and carries out pressure relief to tank body. DRAWINGS

[0016] Figure 1 It is the perspective view of a kind of safety protection devices of chemical equipment provided for the utility model embodiment;

[0017] Figure 2 It is the sectional view of a kind of safety protection devices of chemical equipment provided for the utility model embodiment;

[0018] Figure 3 It isFigure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a partial structural diagram of a pressure relief component for a safety protection device of chemical equipment, provided as an embodiment of the present utility model.

[0020] In the attached diagram: chemical equipment body 1, tank 11, feed pipe 12, discharge pipe 13, detection component 2, sensor 21, connecting cable 22, pressure relief component 3, pressure relief cylinder 31, movable groove 311, pressure relief pipe 312, limit ring 32, motor 33, lead screw 34, movable disc 35, locking block 351, connecting rod 36, limit block 361, spring 37, pressure plate 38, sealing gasket 39, blocking block 391. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] like Figures 1 to 4 As shown, a safety protection device for chemical equipment provided in one embodiment of this utility model includes a chemical equipment body 1 and a pressure relief assembly 3 installed on the chemical equipment body 1. The chemical equipment body 1 includes a tank 11, an inlet pipe 12, and an outlet pipe 13. The inlet pipe 12 and the outlet pipe 13 are symmetrically installed on the upper end of the tank 11. The pressure relief assembly 3 is fixedly installed on the top of the tank 11 and located on one side of the detection assembly 2. The pressure relief assembly 3 includes a pressure relief cylinder 31, a motor 33, multiple connecting rods 36, and a sealing gasket 39. A limit ring 32 is fixedly installed inside the pressure relief cylinder 31, and a pressure relief pipe 312 is fixedly installed on the side of the pressure relief cylinder 31. The motor 33 is fixedly installed on the top of the pressure relief cylinder 31. The main shaft of the motor 33 moves through the pressure relief cylinder 31 and extends into the pressure relief cylinder 31 and is fixedly connected to the lead screw 34. A movable disc 35 is movably installed on the lead screw 34. A plurality of connecting rods 36 are evenly distributed and movably installed on the movable disc 35. A limit block 361 is fixedly provided at the upper end of the connecting rod 36. The lower end of the connecting rod 36 moves through the movable disc 35 and extends below the movable disc 35 and is fixedly connected to the pressure plate 38. The sealing gasket 39 is fixedly installed at the lower end of the pressure plate 38 and is pressed and contacted by the limit ring 32. A spring 37 is fixedly provided on the outside of the connecting rod 36 between the movable disc 35 and the pressure plate 38.

[0024] In one embodiment of the utility model, through setting up motor 33 drive screw 34 rotation, drive movable disc 35 up and down movement, through connecting rod 36 connect pressing plate 38 and sealing washer 39, to control sealing washer 39 and the closed state of limit ring 32, so that can when the pressure in jar body 11 is too big through pressure relief pipe 312 play pressure relief function, simultaneously, set up connecting rod 36 cooperation spring 37, can still have certain pressure relief ability when motor 33 failure, to guarantee the stability of device.

[0025] As Figure 2 and Figure 3 Indicated, as another embodiment of the utility model, the pressure relief cylinder 31 is set to cylindrical structure, the movable disc 35, the pressing plate 38 and the sealing washer 39 outer diameter are all same with the inner diameter of pressure relief cylinder 31.

[0026] In one embodiment of the utility model, by setting the movable disc 35, the pressing plate 38 and the sealing washer 39 outer diameter to be same with the inner diameter of pressure relief cylinder 31, to facilitate the up and down movement of movable disc 35, pressing plate 38 and sealing washer 39, also have certain sealing effect.

[0027] As Figure 3 and Figure 4 Indicated, as another embodiment of the utility model, the limit ring 32 is set to annular structure, the sealing washer 39 is set to elastic material, the lower end of sealing washer 39 is provided with the blocking block 391 matched with limit ring 32.

[0028] In one embodiment of the utility model, by setting the blocking block 391 and limit ring 32 are engaged, facilitate to improve the sealing effect between sealing washer 39 and limit ring 32.

[0029] As Figure 3 and Figure 4 Indicated, as another embodiment of the utility model, the movable disc 35 side is annularly fixedly provided with a plurality of clamping blocks 351, the pressure relief cylinder 31 side is fixedly provided with a movable groove 311 corresponding to the clamping block 351, and the clamping block 351 is movably clamped in the movable groove 311.

[0030] In one embodiment of the utility model, by setting the clamping block 351 cooperation movable groove 311, can improve the stability of movable disc 35 movement, to reduce the resistance when motor 33 drive screw 34 rotation, indirectly improve the service life of motor 33.

[0031] As Figure 1 , Figure 2 and Figure 3 Indicated, as another embodiment of the utility model, the upper end of jar body 11 is further provided with a detection assembly 2, and the detection assembly 2 comprises a sensor 21 and a connecting cable 22.

[0032] Specifically, the sensor 21 is fixedly installed at the middle of the upper end of the tank body 11, the lower end of the sensor 21 penetrates through the top of the tank body 11 and extends into the tank body 11, and the sensor 21 is connected with the external control system through the connecting cable 22.

[0033] In an embodiment of the utility model, the sensor 21 is arranged to detect the state in the tank body 11, and the external control system is connected to feedback and adjust, so that the motor 33 is driven to rotate to release pressure of the tank body 11 in the first time.

[0034] It is apparent for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other concrete forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive in any aspect, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0035] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0036] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0037] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, 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 intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, the skilled in the art should be regarded as a whole, the technical solution in each example can be combined appropriately, form other embodiments that the skilled in the art can understand.

Claims

1. A safety protection device for chemical equipment, comprising a chemical equipment body (1) and a pressure relief assembly (3) installed on the chemical equipment body (1), characterized in that, The main body (1) of the chemical equipment includes a tank (11), a feed pipe (12) and a discharge pipe (13). The feed pipe (12) and the discharge pipe (13) are symmetrically installed on the upper end of the tank (11). The pressure relief assembly (3) is fixedly installed on the top of the tank (11) and located on one side of the detection assembly (2). The pressure relief assembly (3) includes a pressure relief cylinder (31), a motor (33), multiple connecting rods (36) and a sealing gasket (39). A limit ring (32) is fixedly installed inside the pressure relief cylinder (31). A pressure relief pipe (312) is fixedly installed on the side of the pressure relief cylinder (31). The motor (33) is fixedly installed on the top of the pressure relief cylinder (31). The main shaft of the motor (33) is movable. A connecting rod (36) is fixedly connected to a lead screw (34) inside the pressure relief cylinder (31). A movable disc (35) is movably mounted on the lead screw (34). Multiple connecting rods (36) are evenly distributed and movably mounted on the movable disc (35). A limit block (361) is fixedly provided at the upper end of the connecting rod (36). The lower end of the connecting rod (36) movably passes through the movable disc (35) and extends to the bottom of the movable disc (35) and is fixedly connected to a pressure plate (38). A sealing gasket (39) is fixedly installed at the lower end of the pressure plate (38) and is pressed into contact with a limit ring (32). A spring (37) is fixedly provided on the outside of the connecting rod (36) between the movable disc (35) and the pressure plate (38).

2. The safety protection device for chemical equipment according to claim 1, characterized in that, The pressure relief cylinder (31) is configured as a cylindrical structure, and the outer diameters of the movable disc (35), pressure plate (38) and sealing gasket (39) are the same as the inner diameter of the pressure relief cylinder (31).

3. The safety protection device for chemical equipment according to claim 2, characterized in that, The limiting ring (32) is configured as an annular structure, the sealing gasket (39) is configured as an elastic material, and the lower end of the sealing gasket (39) is provided with a blocking block (391) that is compatible with the limiting ring (32).

4. A safety protection device for chemical equipment according to claim 3, characterized in that, The movable disc (35) has multiple locking blocks (351) fixedly arranged in a ring on its side. The pressure relief cylinder (31) has a movable groove (311) fixedly opened on its side corresponding to the locking blocks (351). The locking blocks (351) are movably locked in the movable groove (311).

5. A safety protection device for chemical equipment according to claim 1, characterized in that, A detection component (2) is also fixedly installed in the middle of the upper end of the tank (11). The detection component (2) includes a sensor (21) and a connecting cable (22).

6. A safety protection device for chemical equipment according to claim 5, characterized in that, The sensor (21) is fixedly installed in the middle of the upper part of the tank (11). The lower end of the sensor (21) passes through the top of the tank (11) and extends into the tank (11). The sensor (21) is connected to the external control system through the connecting cable (22).

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