Liquid discharge mechanism of VOCS recovery surge tank

Abstract

The utility model relates to the technical field of surge tanks, in particular to a liquid drainage mechanism of a VOCS (volatile organic compounds) recovery surge tank, which comprises a surge tank, a plurality of support structures are arranged at the bottom of the surge tank, a mounting space is defined by the plurality of support structures and the bottom of the surge tank, a liquid drainage structure is arranged in the mounting space towards the surge tank, and the liquid drainage structure is arranged in the mounting space towards the surge tank. A guide part is arranged between the liquid discharge structure and the surge tank, and the bottom wall of the liquid discharge structure is provided with a sewage discharge structure opposite to the guide part; the sewage discharging structure comprises a first sewage discharging opening and a second sewage discharging opening, the first sewage discharging opening is communicated with the liquid discharging structure and is flush with the inner wall of the liquid discharging structure, the second sewage discharging opening penetrates through the sewage discharging structure, and the height of a liquid inlet of the second sewage discharging opening is larger than that of a liquid inlet of the first sewage discharging opening. The utility model aims to enable the surge tank to efficiently and stably discharge waste materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressure tank, especially a kind of liquid discharge mechanism of VOCS recovery pressure tank. BACKGROUND

[0002] Oil tank will always emit gas, and the volatile gas of several or ten oil tanks in each processing plant is collected into a pressure tank, and after pressure stabilizing and liquid discharging treatment, it enters the compressor system for pressure recovery. After the volatile gas enters the pressure tank, it is separated and collected in the pressure tank. Part of the light components and most of the heavy components of hydrocarbons and moisture will gradually deposit at the bottom of the pressure tank. After reaching a certain liquid level, PLC control is used to transport the liquid to the waste oil tank in the plant area by using a shield pump.

[0003] However, because the viscosity and specific gravity of heavy component hydrocarbons are the highest, if the bottom layer of hydrocarbon oil is directly pumped away by a shield pump, the shield pump and the downstream pipeline valve are easily damaged. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a kind of liquid discharge mechanism of VOCS recovery pressure tank, to make the pressure tank discharge waste material efficiently and stably.

[0005] To achieve the above purpose, the utility model provides a kind of liquid discharge mechanism of VOCS recovery pressure tank, which comprises a pressure tank, a plurality of support structures are arranged at the bottom of the pressure tank, and an installation space is formed by the plurality of support structures and the bottom of the pressure tank. A liquid discharge structure is arranged in the installation space and faces the pressure tank. A guide portion is arranged between the liquid discharge structure and the pressure tank. A pollution discharge structure is arranged on the bottom wall of the liquid discharge structure and faces the guide portion.

[0006] The pollution discharge structure comprises a first pollution discharge port and a second pollution discharge port. The first pollution discharge port is connected to the liquid discharge structure and flush with the inner wall of the liquid discharge structure. The second pollution discharge port is arranged in the pollution discharge structure. The height of the liquid inlet of the second pollution discharge port is higher than that of the first pollution discharge port.

[0007] In an embodiment of the present application, the liquid discharge structure is provided with a plurality of connecting pieces facing the pressure tank. The liquid discharge structure is parallel to the pressure tank under the action of the connecting pieces.

[0008] The bottom wall of the liquid discharge structure is provided with a plurality of support pieces. The plurality of support pieces surround the liquid discharge structure. The liquid discharge structure is parallel to the horizontal plane under the action of the support pieces.

[0009] In an embodiment of the present application, the pollution discharge structure is arranged below the guide portion and connected to the end of the liquid discharge structure away from the guide portion.

[0010] In an embodiment of the present application, the first blowdown opening is a manual blowdown mechanism, and the second blowdown opening is an automatic blowdown mechanism.

[0011] In an embodiment of the present application, one side of the pressure stabilizing tank is provided with an air inlet pipe, the air inlet pipe gradually extends towards the other side of the pressure stabilizing tank, a filter element is arranged in the air inlet pipe, and the air inlet pipe is provided with a liquid outlet end relative to the guide part.

[0012] By adopting the above technical scheme, the utility model has the following advantages:

[0013] 1. The pressure stabilizing tank is used for temporarily storing and filtering input gas, wherein the liquid part will flow into the blowdown structure along the guide part and be discharged by the blowdown structure, the plurality of support structures make the pressure stabilizing tank more stable in installation and placement, guarantee the normal work of the pressure stabilizing tank and the liquid discharge structure, and make the whole blowdown process more stable.

[0014] 2. The plurality of support structures can constitute an installation space, that is, can be used for supporting the pressure stabilizing tank, and the installation space constituted by the plurality of support structures can form a protection space relative to the liquid discharge structure, so that the liquid discharge structure can be prevented from being damaged during work, and the work of the liquid discharge structure is more stable.

[0015] 3. The guide part is communicated with the top of the liquid discharge structure, can first divert the waste liquid structure to be discharged, and the blowdown structure is arranged on the bottom wall of the liquid discharge structure, and the blowdown structure itself is composed of a first blowdown opening and a second blowdown opening. Generally, the first blowdown opening and the second blowdown opening are arranged at the same height as the connection position of the tank body of the liquid discharge structure, and the two connection positions are arranged at intervals, but the second blowdown opening penetrates into the liquid discharge structure, and the height of the liquid inlet of the second blowdown opening is much higher than that of the first blowdown opening. Because the composition of the waste liquid is generally part of light components and most of heavy components and water, they are deposited on the tank bottom of the liquid discharge structure and will gradually stratify over time, and the viscosity and specific gravity of the heavy component hydrocarbon are the highest. Therefore, if the bottom layer of hydrocarbon oil is directly pumped away by the shielding pump, the shielding pump and the rear-end pipeline valve are easily damaged. Therefore, through the linkage of the two blowdown openings, the light component and water can be sent away through the second blowdown opening, and the hydrocarbon oil can be gradually discharged through the first blowdown opening, so that the machine state can be effectively protected, the blowdown structure is prevented from being damaged, and the waste liquid can be efficiently and stably discharged through the above structure, and the working stability of the equipment is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor.

[0017] Figure 1 It is the structural schematic view of the liquid discharge mechanism of the VOCs recovery pressure stabilizing tank of the utility model.

[0018] Explanation of reference numerals:

[0019] 1, pressure stabilizing tank; 11, air inlet pipe; 12, support structure; 13, guide portion; 2, mounting space; 3, liquid discharge structure; 31, connecting piece; 32, support piece; 4, pollution discharge structure; 41, first pollution discharge port; 42, second pollution discharge port.

[0020] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0022] Reference Figure 1 In order to achieve the above-mentioned purpose, the utility model provides a kind of liquid discharge mechanism of VOCs recovery pressure stabilizing tank 1, including pressure stabilizing tank 1, the bottom of pressure stabilizing tank 1 is equipped with multiple support structures 12, multiple support structures 12 and the bottom of pressure stabilizing tank 1 are enclosed and are formed with mounting space 2, towards pressure stabilizing tank 1 is equipped with liquid discharge structure 3 in mounting space 2, and guide portion 13 is equipped between liquid discharge structure 3 and pressure stabilizing tank 1, and the bottom wall of liquid discharge structure 3 is equipped with pollution discharge structure 4 relative to guide portion 13;

[0023] Pollution discharge structure 4 includes first pollution discharge port 41 and second pollution discharge port 42, first pollution discharge port 41 is communicated to liquid discharge structure 3, and is flush with the inner wall of liquid discharge structure 3, second pollution discharge port 42 is arranged in pollution discharge structure 4, and the height of the liquid inlet of second pollution discharge port 42 is higher than the height of the liquid inlet of first pollution discharge port 41.

[0024] Pressure stabilizing tank 1 is used for temporarily storing, filtering input gas, wherein liquid part will flow into pollution discharge structure 4 along guide portion 13, and pollution is discharged by pollution discharge structure 4, multiple support structures 12 make pressure stabilizing tank 1 more stable when installing and placing, guarantee the normal work of pressure stabilizing tank 1 and liquid discharge structure 3, so that the whole pollution discharge process is more stable.

[0025] Multiple support structures 12 can constitute mounting space 2, i.e. can be used to support pressure stabilizing tank 1, and the mounting space 2 constituted by multiple support structures 12 can form a protection space relative to liquid discharge structure 3, which can avoid damage to liquid discharge structure 3 during work, so that liquid discharge structure 3 works more stably.

[0026] The guide part 13 is communicated with the top of the liquid discharge structure 3, and can divert the waste liquid structure to be discharged in the first time. The pollution discharge structure 4 is arranged on the bottom wall of the liquid discharge structure 3, and is composed of a first pollution discharge port 41 and a second pollution discharge port 42. Generally, the first pollution discharge port 41 and the second pollution discharge port 42 have the same height at the connecting positions of the tank body of the liquid discharge structure 3, and are arranged at intervals. However, the second pollution discharge port 42 penetrates into the liquid discharge structure 3, and the height of the liquid inlet of the second pollution discharge port 42 is much higher than that of the first pollution discharge port 41. Because the components of the waste liquid are generally hydrocarbons and water, which are composed of part of light components and most of heavy components, the hydrocarbons and water are deposited on the bottom of the tank of the liquid discharge structure 3, and are gradually stratified over time. The viscosity and gravity of the heavy component hydrocarbons are the highest. Therefore, if the bottom layer of hydrocarbon oil is directly pumped away by the shielding pump, the shielding pump and the rear pipeline valve are easily damaged. Therefore, through the linkage of the two pollution discharge ports, the light components and water can be sent away through the second pollution discharge port 42, and the hydrocarbon oil can be gradually discharged through the first pollution discharge port 41, so that the state of the machine body can be effectively protected, the pollution discharge structure 4 is prevented from being damaged, the waste liquid can be efficiently and stably discharged through the above structure, and the working stability of the equipment is protected.

[0027] With reference to Figure 1 The liquid discharge structure 3 is provided with a plurality of connecting pieces 31 facing the pressure stabilizing tank 1, and is parallel to the pressure stabilizing tank 1 under the action of the connecting pieces 31. The bottom wall of the liquid discharge structure 3 is arranged with a plurality of supporting pieces 32, and the plurality of supporting pieces 32 are wrapped around the liquid discharge structure 3. The liquid discharge structure 3 is parallel to the horizontal plane under the action of the supporting pieces 32.

[0028] The connecting pieces 31 and the supporting pieces 32 cooperate with each other to enable the liquid discharge structure 3 to be more stably connected below the pressure stabilizing tank 1. The supporting pieces 32 are used to prevent the liquid discharge structure 3 from giving too much pressure to the pressure stabilizing tank 1, and can be used to protect the pressure stabilizing tank 1. The connecting pieces 31 can make the connection between the pressure stabilizing tank 1 and the liquid discharge structure 3 more compact, so as to ensure the safety of the working of the liquid discharge structure 3. The plurality of supporting structures 12 are wrapped around the connecting pieces 31, the liquid discharge structure 3 and the supporting pieces 32, so as to ensure the working efficiency of the pollution discharge structure 4.

[0029] With reference to Figure 1 The pollution discharge structure 4 is below the guide part 13 and is connected to the end of the liquid discharge structure 3 away from the guide part 13.

[0030] The pollution discharge structure 4 is connected to the bottom wall of the tank body of the liquid discharge structure 3, and the guide part 13 is connected to the top of the tank body. The two are completely opposite to each other, which is used to avoid that the liquid to be discharged directly impacts the pollution discharge structure 4 in the unstratified state, so as to avoid damaging the pollution discharge structure 4 and prevent the hydrocarbon oil from directly entering the second pollution discharge port 42 to cause the pollution discharge port to be blocked and the equipment structure to be damaged, so that the maintenance cost can be effectively reduced.

[0031] With reference to Figure 1The first blowdown port 41 is a manual blowdown mechanism, and the second blowdown port 42 is an automatic blowdown mechanism.

[0032] The liquid inlet of the second blowdown port 42 is relatively high, and when the liquid to be discharged completely surrounds the second blowdown port 42, the liquid can be stratified, and the water and light components in the liquid can be directly discharged through the blowdown port, effectively ensuring the stability of the liquid discharge. The second blowdown port 42 can be automatically opened and closed, ensuring efficient discharge of waste liquid.

[0033] In order to ensure that the second blowdown port 42 can work normally and stably, the first blowdown port 41 is preferably not synchronized with the second blowdown port 42, so as to avoid vortex of liquid caused by multiple blowdown ports, which makes the liquid turbid and cannot be discharged. In addition, the hydrocarbon oil needs to be stored for a certain period of time and the light components are discharged after the liquid is stratified, and then the hydrocarbon oil can be discharged. Therefore, the first blowdown port 41 is preferably a manual blowdown port, so that the second blowdown port 42 is not damaged due to the turbid liquid structure caused by the automatic start of the first blowdown port 41 due to failure. The above structure can effectively protect the entire machine structure and avoid damage to the entire machine.

[0034] For reference Figure 1 One side of the pressure stabilizing tank 1 is provided with an air inlet pipe 11, the air inlet pipe 11 gradually extends towards the other side of the pressure stabilizing tank 1, a filter element is arranged in the air inlet pipe 11, and the air inlet pipe 11 is provided with a liquid outlet end relative to the guide portion 13.

[0035] The air inlet pipe 11 can be connected with multiple oil storage tanks, and after the gas enters, it is collected, pressure stabilized, and filtered by the filter element arranged in the air inlet pipe 11, so as to ensure the stability of the quality of the gas. The liquid outlet end is arranged close to the guide portion 13, which can more efficiently send the material to be discharged into the liquid discharge structure 3 for discharge in the first time, so as to ensure the efficiency of waste liquid discharge.

[0036] In the drawings of the embodiments, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation of the present patent, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid discharge mechanism of a VOCs recovery surge tank, comprising a surge tank, characterized by, The bottom of the pressure stabilizing tank is provided with a plurality of support structures, the plurality of support structures and the bottom of the pressure stabilizing tank enclose an installation space, a liquid discharge structure is arranged in the installation space and faces the pressure stabilizing tank, a guide portion is arranged between the liquid discharge structure and the pressure stabilizing tank, and a sewage discharge structure is arranged on the bottom wall of the liquid discharge structure and faces the guide portion; The sewage discharge structure comprises a first sewage discharge opening and a second sewage discharge opening, the first sewage discharge opening is communicated with the liquid discharge structure and is flush with the inner wall of the liquid discharge structure, and the second sewage discharge opening is arranged in the sewage discharge structure, and the height of the liquid inlet of the second sewage discharge opening is higher than that of the first sewage discharge opening.

2. The liquid discharge mechanism of the VOCs recovery surge tank according to claim 1, wherein The liquid discharge structure is provided with a plurality of connecting pieces and faces the pressure stabilizing tank, and the liquid discharge structure is parallel to the pressure stabilizing tank under the action of the connecting pieces. The bottom wall of the liquid discharge structure is provided with a plurality of support pieces, the plurality of support pieces surround the liquid discharge structure, and the liquid discharge structure is parallel to the horizontal plane under the action of the support pieces.

3. The liquid discharge mechanism of the VOCs recovery surge tank according to claim 1, wherein The sewage discharge structure is arranged below the guide portion and is connected to the end of the liquid discharge structure away from the guide portion.

4. The liquid discharge mechanism of the VOCs recovery surge tank according to claim 3, wherein The first sewage discharge opening is a manual sewage discharge mechanism, and the second sewage discharge opening is an automatic sewage discharge mechanism.

5. The liquid discharge mechanism of the VOCs recovery surge tank according to claim 1, wherein One side of the pressure stabilizing tank is provided with an air inlet pipe, the air inlet pipe gradually extends towards the other side of the pressure stabilizing tank, a filter element is arranged in the air inlet pipe, and the air inlet pipe is provided with a liquid outlet end and faces the guide portion.

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