Safety relief device for chemical production

Abstract

The utility model discloses a safety relief device for chemical production, which belongs to the technical field of chemical production and comprises a chemical production tank, an L-shaped relief pipe is fixedly connected to the outer end of the chemical production tank, a top sealing plate is fixedly connected to the upper side of the vertical end of the L-shaped relief pipe, and a plurality of relief holes are formed in the inner wall of the vertical end of the L-shaped relief pipe. A stress push plate is slidably connected to the inner side of the vertical end of the L-shaped discharging pipe, a magnetic attraction piece is inlaid in the upper end of the stress push plate, an electromagnetic block is fixedly connected to the lower end of the top sealing plate, a touch switch is fixedly connected to the lower end of the top sealing plate, and the touch switch is located at the outer end of the electromagnetic block. And meanwhile, the stress push plate is pushed by airflow in the L-shaped discharge pipe to trigger an alarm, so that a worker is conveniently reminded that the chemical production tank is in a discharge state, and the L-shaped discharge pipe is conveniently overhauled and maintained after discharge.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of chemical production technology, more specifically, to a chemical production safety relief device. BACKGROUND

[0002] The chemical production safety relief device (also called safety relief device or safety relief system) is a very important device in chemical engineering, which is used to automatically release excessive gas or liquid when the device or pipeline has overpressure, abnormal pressure or temperature and other dangerous conditions, to prevent equipment damage, explosion, fire and other accidents, and to ensure production safety and personnel safety.

[0003] Chinese patent authorization announcement number: CN219502120U, provides a kind of chemical production safety relief device, this patent is filtered to solid condensate in chemical material by two filter screens, can prevent causing transportation pipeline blockage in the process of transportation, avoid excessive pressure, cause pipe burst, reach the purpose of safety relief, while push plate can also scrape off solid condensate, centralized collection processing.

[0004] However, the relief device involved in the above patent only filters solid condensate in the material during the relief process to prevent blocking the transportation pipeline, but the existing relief device does not have an emergency relief device. When the liquid or gas delivery is too urgent, such as too much liquid or gas, the gas pressure in the pipeline is too high, which will also cause the pipeline to be too large and break, causing the damaged pipeline after relief to be unknown to the staff, thus leaving hidden dangers. 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 chemical production safety relief device, which can realize the purpose of relieving the gas pressure in the chemical production tank through the L-shaped relief pipe, and trigger the alarm by means of the force push plate under the push of the gas flow in the L-shaped relief pipe, so as to remind the staff that the chemical production tank is in the relief state, thus facilitating the repair and maintenance of the L-shaped relief pipe after relief.

[0007] 2. Technical scheme

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

[0009] The utility model provides a chemical production safety relief device, including chemical production tank, the outer end fixed connection of chemical production tank has L type relief pipe, the vertical end upper side fixed connection of L type relief pipe has the top board, the inner wall of vertical end of L type relief pipe is opened and is equipped with a plurality of relief hole, the inner side sliding connection of vertical end of L type relief pipe has stress push board, the upper end of stress push board inlays has magnetic attraction piece, the lower fixed connection of top board has electromagnetic block, the lower fixed connection of top board has touch switch, and touch switch is located the outer end of electromagnetic block, the upper fixed connection of top board has alarm lamp, and alarm lamp is connected with touch switch electricity, through L type relief pipe to the purpose of the pressure in chemical production tank is relieved, simultaneously with the help of stress push board is pushed by the flow in L type relief pipe and makes it trigger alarm, thereby convenient to remind staff chemical production tank is in relief state, in this way, it is convenient to overhaul and maintain after relief L type relief pipe.

[0010] Further, the upper end of the top plate is fixedly connected with a protective cover, and the protective cover is located at the outer end of the alarm lamp. The side end of the top plate is fixedly connected with a reset switch, and the reset switch is electrically connected with the alarm lamp and the electromagnetic block respectively. The protective cover protects the alarm lamp from damage and dust. The reset switch can reset the alarm lamp after relief, and the electromagnetic block is de-energized to lose magnetic force, so that the stress push plate is reset and falls down.

[0011] Further, the L-shaped relief pipe is provided with a guide wire, and the guide wire is fixedly connected with the electromagnetic block. The guide wire penetrates through the stress push plate and the magnetic attraction piece and is slidably connected therewith. The guide wire can guide the stress push plate to prevent it from being pushed by the air pressure and being stuck.

[0012] Further, the guide wire comprises an L-shaped guide wire. The L-shaped guide wire is arranged in the L-shaped relief pipe. A cross-shaped positioning wire is fixedly connected to the outer end of the L-shaped guide wire away from the electromagnetic block. The cross-shaped positioning wire is fixedly connected to the inner wall of the horizontal end of the L-shaped relief pipe. A cleaning plate is slidably connected to the outer end of the L-shaped guide wire. The horizontal end of the L-shaped relief pipe is inclined. The horizontal end of the L-shaped guide wire is in the same state as the horizontal end of the L-shaped relief pipe. When the chemical production tank is relieved, the airflow pushes the cleaning plate to slide along the L-shaped guide wire to clean the inner wall of the L-shaped relief pipe, thereby reducing the condensate on the inner wall of the L-shaped relief pipe. The cross-shaped positioning wire not only fixes the guide wire as a whole, but also limits the cleaning plate to prevent it from separating from the L-shaped relief pipe. The horizontal end of the L-shaped guide wire is inclined, so that the cleaning plate can slide back after being pushed upward.

[0013] Further, the cleaning plate comprises a movable plate. The movable plate is slidably connected to the outer side of the horizontal end of the L-shaped guide wire. A cleaning brush is fixedly connected to the outer end of the movable plate and abuts against the inner wall of the L-shaped relief pipe. The movable plate is pushed by the airflow to slide along the outer end of the L-shaped guide wire, and the cleaning brush cleans the inner wall of the L-shaped relief pipe, thereby reducing the attachment of condensate.

[0014] Further, the inner wall of the discharge hole is fixedly connected with a dustproof net, which can reduce dust and sundries from entering the L-shaped discharge pipe.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) The L-shaped discharge pipe can be used for discharging the gas pressure in the chemical production tank, and the stress push plate is pushed by the airflow in the L-shaped discharge pipe to trigger the alarm, so as to remind the staff that the chemical production tank is in the discharging state, thereby facilitating the maintenance and repair of the L-shaped discharge pipe after discharging.

[0018] (2) The top plate is fixedly connected with a protective cover at the upper end, and the protective cover is located at the outer end of the alarm lamp, the side end of the top plate is fixedly connected with a reset switch, and the reset switch is electrically connected with the alarm lamp and the electromagnetic block, respectively. The protective cover can protect the alarm lamp from damage and dust, and the reset switch can be used to release the alarm lamp after discharging, and the electromagnetic block is de-energized to lose the magnetic force, so that the stress push plate is reset and slides down.

[0019] (3) The L-shaped discharge pipe is provided with a guide wire, and the guide wire is fixedly connected with the electromagnetic block, and the guide wire penetrates through the stress push plate and the magnetic attraction piece and is slidably connected therewith. The guide wire can guide the stress push plate and prevent it from being pushed by the gas pressure and being stuck.

[0020] (4) The guide wire comprises an L-shaped guide wire, which is arranged in the L-shaped discharge pipe. A cross-shaped positioning wire is fixedly connected to the end of the L-shaped guide wire away from the electromagnetic block, and the cross-shaped positioning wire is fixedly connected to the inner wall of the horizontal end of the L-shaped discharge pipe. A cleaning plate is slidably connected to the outer end of the L-shaped guide wire. The horizontal end of the L-shaped discharge pipe is inclined, and the horizontal end of the L-shaped guide wire is in the same state as the horizontal end of the L-shaped discharge pipe. The airflow pushes the cleaning plate to slide along the L-shaped guide wire to clean the inner wall of the L-shaped discharge pipe when the chemical production tank is discharged, so as to reduce the condensate on the inner wall of the L-shaped discharge pipe. The cross-shaped positioning wire not only fixes the guide wire as a whole, but also limits the cleaning plate to prevent it from separating from the L-shaped discharge pipe. The inclined horizontal end of the L-shaped guide wire can facilitate the cleaning plate to slide back after being pushed upward.

[0021] (5) The cleaning plate comprises a movable plate, which is slidably connected to the outer side of the horizontal end of the L-shaped guide wire. A cleaning brush is fixedly connected to the outer end of the movable plate and abuts against the inner wall of the L-shaped discharge pipe. The movable plate slides along the outer end of the L-shaped guide wire under the action of the airflow, and the cleaning brush cleans the inner wall of the L-shaped discharge pipe, thereby reducing the adhesion of the condensate.

[0022] (6) The dustproof net is fixedly connected to the inner wall of the discharge hole in the scheme, and dust and sundries can be reduced from entering the L-shaped discharge pipe through the dustproof net. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a whole structure schematic view in the utility model;

[0024] Fig. 2 It is a structure schematic view of the L-shaped discharge pipe side section in the utility model;

[0025] Fig. 3 It is a structure schematic view of the guide wire and the cleaning plate in the utility model.

[0026] Mark explanation in the drawing:

[0027] 1, chemical production tank; 2, L-shaped discharge pipe; 3, top plate; 4, discharge hole; 5, stressed push plate; 6, magnetic attraction piece; 7, electromagnetic block; 8, touch switch; 9, alarm lamp; 10, protective cover; 11, reset switch; 12, guide wire; 121, L-shaped guide wire; 122, cross-shaped positioning wire; 13, cleaning plate; 131, movable plate; 132, cleaning brush; 14, dustproof net. DETAILED DESCRIPTION

[0028] 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 fall within the protection scope of the utility model.

[0029] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore 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 indicative or suggestive of relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1:

[0032] Please see Figs. 1-3 A safety relief device for chemical production includes a chemical production tank 1. An L-shaped relief pipe 2 is fixedly connected to the outer end of the chemical production tank 1. A top plate 3 is fixedly connected to the upper side of the vertical end of the L-shaped relief pipe 2. Multiple relief holes 4 are opened on the inner wall of the vertical end of the L-shaped relief pipe 2. A force-bearing push plate 5 is slidably connected to the inner side of the vertical end of the L-shaped relief pipe 2. A magnetic suction piece 6 is embedded in the upper end of the force-bearing push plate 5. An electromagnetic block 7 is fixedly connected to the lower end of the top plate 3. A touch switch 8 is fixedly connected to the lower end of the top plate 3, and the touch switch 8 is located outside the electromagnetic block 7. An alarm light 9 is fixedly connected to the upper end of the top plate 3, and the alarm light 9 is electrically connected to the touch switch 8. The gas pressure inside the chemical production tank 1 is released through the L-shaped relief pipe 2. At the same time, the force-bearing push plate 5 is pushed by the airflow inside the L-shaped relief pipe 2 to trigger an alarm, thereby reminding the staff that the chemical production tank 1 is in a relief state, which facilitates the inspection and maintenance of the L-shaped relief pipe 2 after the relief.

[0033] A protective cover 10 is fixedly connected to the upper end of the top plate 3, and the protective cover 10 is located outside the alarm light 9. A reset switch 11 is fixedly connected to the side end of the top plate 3, and the reset switch 11 is electrically connected to the alarm light 9 and the electromagnetic block 7 respectively. The protective cover 10 protects the alarm light 9 from damage and dust. At the same time, the reset switch 11 can be used to deactivate the alarm light 9 after it has been discharged, and also to de-energize the electromagnetic block 7 so that it loses its magnetic force, allowing the force-bearing push plate 5 to reset and slide down.

[0034] The L-shaped vent pipe 2 is equipped with a guide wire 12, which is fixedly connected to the electromagnetic block 7. The guide wire 12 passes through the force-bearing push plate 5 and the magnetic suction plate 6 and is slidably connected to them. The guide wire 12 can guide the force-bearing push plate 5 to prevent it from being pushed by air pressure and causing it to misalign and get stuck.

[0035] The guide wire 12 comprises an L-shaped guide wire 121 arranged in the L-shaped discharge pipe 2, and a cross-shaped positioning wire 122 fixedly connected to the outer end of the L-shaped guide wire 121 away from the electromagnetic block 7 and fixedly connected to the inner wall of the transverse end of the L-shaped discharge pipe 2, and the outer end of the L-shaped guide wire 121 is slidably connected with the cleaning plate 13, and the transverse end of the L-shaped discharge pipe 2 is inclined, and the transverse end of the L-shaped guide wire 121 is in the same state as the transverse end of the L-shaped discharge pipe 2, and when the chemical production tank 1 is discharged, the airflow pushes the cleaning plate 13 to slide along the L-shaped guide wire 121 to clean the inner wall of the L-shaped discharge pipe 2, so as to reduce the condensate on the inner wall of the L-shaped discharge pipe 2, and the cross-shaped positioning wire 122 can not only fix the guide wire 12 as a whole, but also limit the cleaning plate 13 to prevent it from being separated from the L-shaped discharge pipe 2, and the inclined transverse end of the L-shaped guide wire 121 can facilitate the cleaning plate 13 to be pushed to move upward and then slide back to the original position.

[0036] The cleaning plate 13 comprises a movable plate 131 slidably connected to the outer side of the transverse end of the L-shaped guide wire 121, and a cleaning brush 132 fixedly connected to the outer end of the movable plate 131 and abutting against the inner wall of the L-shaped discharge pipe 2, and the cleaning brush 132 is pushed by the airflow to slide along the outer end of the L-shaped guide wire 121 to clean the inner wall of the L-shaped discharge pipe 2, thereby reducing the attachment of condensate.

[0037] The inner wall of the discharge hole 4 is fixedly connected with a dust screen 14, which can reduce the entry of dust and sundries into the L-shaped discharge pipe 2.

[0038] When in use, please refer to Figs. 1-3 When the gas pressure in the chemical production tank 1 is too large, the gas is discharged through the L-shaped discharge pipe 2, so as to push the cleaning plate 13 and the stressed push plate 5, the stressed push plate 5 is stressed and slides upward until the magnetic attraction piece 6 is attracted by the electromagnetic block 7, so that the stressed push plate 5 contacts the switch 8 to start the alarm lamp 9 to alarm, and the gas is discharged from the plurality of discharge holes 4, and at the same time, the cleaning plate 13 slides along the guide wire 12 to clean the inner wall of the L-shaped discharge pipe 2, until the staff inspects the L-shaped discharge pipe 2, the alarm of the alarm lamp 9 is released by the reset switch 11, and the attraction between the electromagnetic block 7 and the magnetic attraction piece 6 is released, so that the stressed push plate 5 slides downward to reset, and the cleaning plate 13 slides along the guide wire 12 to reset again to clean the inner wall of the L-shaped discharge pipe 2, compared with the traditional chemical production safety discharge device, the utility model can realize the purpose of discharging the gas pressure in the chemical production tank 1 through the L-shaped discharge pipe 2, and the stressed push plate 5 is pushed by the airflow in the L-shaped discharge pipe 2 to trigger the alarm, so as to remind the staff that the chemical production tank 1 is in the state of discharge, and then the L-shaped discharge pipe 2 is maintained and maintained after the discharge.

[0039] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.

Claims

1. A safety relief device for chemical production, comprising a chemical production tank (1), characterized in that: The chemical production tank (1) is fixedly connected to an L-shaped vent pipe (2) at its outer end. A top plate (3) is fixedly connected to the upper side of the vertical end of the L-shaped vent pipe (2). Multiple vent holes (4) are opened on the inner wall of the vertical end of the L-shaped vent pipe (2). A force-bearing push plate (5) is slidably connected to the inner side of the vertical end of the L-shaped vent pipe (2). A magnetic absorbing piece (6) is embedded in the upper end of the force-bearing push plate (5). An electromagnetic block (7) is fixedly connected to the lower end of the top plate (3). A touch switch (8) is fixedly connected to the lower end of the top plate (3), and the touch switch (8) is located outside the electromagnetic block (7). An alarm light (9) is fixedly connected to the upper end of the top plate (3), and the alarm light (9) is electrically connected to the touch switch (8).

2. The chemical production safety relief device according to claim 1, characterized in that: The top end of the top plate (3) is fixedly connected to a protective cover (10), and the protective cover (10) is located outside the alarm light (9). The side end of the top plate (3) is fixedly connected to a reset switch (11), and the reset switch (11) is electrically connected to the alarm light (9) and the electromagnetic block (7) respectively.

3. The chemical production safety relief device according to claim 1, characterized in that: The L-shaped discharge pipe (2) is provided with a guide wire (12), and the guide wire (12) is fixedly connected to the electromagnetic block (7). The guide wire (12) passes through the force-bearing push plate (5) and the magnetic suction plate (6) and is slidably connected to them.

4. The chemical production safety relief device according to claim 3, characterized in that: The guide wire (12) includes an L-shaped guide wire (121), which is located inside the L-shaped vent pipe (2). The end of the L-shaped guide wire (121) away from the electromagnetic block (7) is fixedly connected to a cross-shaped positioning wire (122), and the cross-shaped positioning wire (122) is fixedly connected to the inner wall of the transverse end of the L-shaped vent pipe (2). The outer end of the L-shaped guide wire (121) is slidably connected to a cleaning plate (13). The transverse end of the L-shaped vent pipe (2) is inclined, and the transverse end of the L-shaped guide wire (121) is in the same state as the transverse end of the L-shaped vent pipe (2).

5. The chemical production safety relief device according to claim 4, characterized in that: The cleaning plate (13) includes a movable plate (131), which is slidably connected to the outer side of the transverse end of the L-shaped guide wire (121). A cleaning brush (132) is fixedly connected to the outer end of the movable plate (131), and the cleaning brush (132) abuts against the inner wall of the L-shaped drain pipe (2).

6. The chemical production safety relief device according to claim 1, characterized in that: A dustproof net (14) is fixedly connected to the inner wall of the vent (4).

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