CN219448004U - Pressure balancing device for storage tank for maintaining volatile medium - Google Patents
Pressure balancing device for storage tank for maintaining volatile medium Download PDFInfo
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- CN219448004U CN219448004U CN202223317383.4U CN202223317383U CN219448004U CN 219448004 U CN219448004 U CN 219448004U CN 202223317383 U CN202223317383 U CN 202223317383U CN 219448004 U CN219448004 U CN 219448004U
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- water seal
- seal tank
- connecting pipe
- tank
- storage tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model relates to a pressure balancing device for a storage tank for keeping volatile media, which comprises a connecting pipe, a water seal tank, a breathing pipe and a liquid supplementing device, and is characterized in that the connecting pipe is arranged in the water seal tank, the breathing pipe is communicated with the upper part of the water seal tank, and the liquid supplementing device is arranged on the side surface of the water seal tank; the connecting pipe and the water seal tank form a closed cavity, liquid medium is arranged outside the connecting pipe and at the lower part of the water seal tank, an air chamber is arranged in the connecting pipe and at the upper part of the water seal tank, and the middle sleeve of the water seal tank stretches into the liquid medium. The beneficial effects are as follows: the device can prevent volatile gas from escaping while ensuring the pressure balance between the inside and the outside of the storage tank, thereby protecting the environment, ensuring the personal safety of maintenance operators for the storage tank, and having simple structure and manufacture, good tightness and low manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of storage tank safety, in particular to a pressure balancing device for a storage tank for keeping volatile media.
Background
The storage tank is one of main equipment for storing materials in various industries, and particularly has wider application in the liquid storage production process in the industries of chemical industry, environmental protection, metallurgy and the like. The light holes or breather valves or pressure release valves and the like which are usually arranged at the top of the storage tank are indispensable devices for the storage tank to feed and discharge storage media. Taking desulfurization and denitrification process in coking industry as an example, ammonia water solution with concentration of 20% is used to react with NOx in flue gas to achieve the aim of denitrification. The ammonia water solution is a volatile medium, and a pressure relief valve is arranged at the upper part of the storage tank and used for keeping internal and external pressure balance when the liquid level of the storage tank changes. Ammonia in the ammonia solution is extremely volatile, and a common pressure relief valve can keep the internal and external pressure balance of the storage tank, but can not inhibit the escape of the volatilized ammonia. The escaped ammonia gas not only can pollute the surrounding environment, but also threatens the physical and mental health of operators for the overhaul and maintenance of the upper storage tank.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem solved by the utility model is to provide the pressure balancing device for the storage tank for the volatile medium, which can prevent the volatile gas from escaping while guaranteeing the pressure balance inside and outside the storage tank, thereby protecting the environment, guaranteeing the personal safety of maintenance operators for the storage tank, and having simple structure and manufacture, good tightness and low manufacturing cost.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the pressure balancing device for the storage tank for keeping the volatile medium comprises a connecting pipe, a water seal tank, a breathing pipe and a liquid supplementing device, and is characterized in that the connecting pipe is arranged in the water seal tank, the breathing pipe is communicated with the upper part of the water seal tank, and the liquid supplementing device is arranged on the side surface of the water seal tank; the connecting pipe and the water seal tank form a closed cavity, liquid medium is arranged outside the connecting pipe and at the lower part of the water seal tank, an air chamber is arranged in the connecting pipe and at the upper part of the water seal tank, and the middle sleeve of the water seal tank stretches into the liquid medium.
The fluid infusion device can be a float valve or an electric or electromagnetic valve which is interlocked with the liquid level meter.
The depth h of the liquid medium is calculated and adjusted according to the pressure change caused by the speed of liquid inlet or liquid discharge of the storage tank.
The liquid medium is a medium in which the reservoir is intended to store volatile media that are readily absorbed.
The height H of the breathing tube is more than or equal to 2m.
Further, the connecting pipe is provided with an overflow hole, when the liquid level in the water seal groove rises to the overflow height, water absorbing volatile media overflows into the storage tank, and the water changing function is indirectly achieved.
Compared with the prior art, the utility model has the beneficial effects that: the device has the characteristics of simple structure, reliable performance and environmental friendliness, can effectively ensure the pressure balance of the storage tank, has higher use value especially for some storage tanks for storing volatile media, and can basically prevent volatile gases from escaping.
Drawings
Fig. 1 is a schematic view of the structural principle of the present utility model.
In the figure: 1-connecting pipe 2-water seal tank 21-liquid medium 22-air chamber 23-middle sleeve 3-respiratory tube 4-fluid supplementing device 5-overflow port 6-storage tank
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
referring to fig. 1, the pressure balancing device for the storage tank for keeping volatile media comprises a connecting pipe 1, a water seal tank 2, a breathing pipe 3 and a liquid supplementing device 4, wherein the connecting pipe 1 is arranged in the water seal tank 2, the breathing pipe 3 is communicated with the upper part of the water seal tank 2, and the liquid supplementing device 4 is arranged on the side surface of the water seal tank 2; the connecting pipe 1 and the water seal tank 2 form a closed cavity, a liquid medium 21 is arranged outside the connecting pipe 1 and below the water seal tank 2, an air chamber 22 is arranged inside the connecting pipe 1 and above the water seal tank 2, a middle sleeve 23 of the water seal tank 2 stretches into the liquid medium 21, and the pressure inside the storage tank 6 is not directly communicated with the outside when being changed through water seal, so that the volatile medium is not directly dissipated into the atmosphere.
The liquid replenishing device 4 can be a float valve or an electric or electromagnetic valve which is interlocked with a liquid level meter, and has the functions of keeping the liquid level of the liquid medium 21 in the water seal tank 2 to be always kept at a certain required liquid level and periodically replacing the liquid medium 21 absorbing certain volatile gas in the water seal tank 2.
The depth h of the liquid medium 21 is calculated and adjusted according to the pressure change caused by the liquid inlet or liquid discharge speed of the storage tank 6, so as to ensure the reliability of the water seal tank 2.
The height H of the breathing tube 3 is more than or equal to 2m, firstly meets the national design specification requirement for the high-altitude gas discharge, and secondly prevents leakage so as to prevent trace volatile media from being discharged out of the atmosphere along with the gas and hurt operators.
The liquid medium 21 may be water or other volatile medium that is stored and readily absorbed.
Further, the connecting pipe 1 is provided with an overflow hole 5, when the liquid level of the liquid medium 21 in the water sealing tank 2 rises to the overflow height, the water absorbing the volatile medium overflows into the storage tank 6, and the liquid medium 21 is indirectly replaced.
In operation, the connecting tube 1 of the inventive device is connected to the top of the tank 6.
1) When the pressure in the storage tank 6 for storing the volatile medium is higher or the pressure of the liquid is increased, the air mixed with the volatile gas enters the air chamber 22 at the upper part of the water seal tank 2 upwards through the inside of the connecting pipe 1, then enters the liquid medium 21 downwards along the outer wall of the connecting pipe 1 and the inner wall of the middle sleeve 23 of the water seal tank 2, the volatile gas is absorbed by the liquid medium 21 in the water seal tank 2, and the air overflows the liquid medium 21 to enter the air chamber 22 outside the middle sleeve 21 and in the water seal tank 2 and is discharged into the atmosphere through the breathing pipe 3.
2) When the pressure in the storage tank 6 for storing the volatile medium is low or the liquid discharge, namely, the pressure is reduced, at the moment, the air in the atmosphere can enter the air chamber 22 of the water seal groove 2 through the breathing tube 3 and then enter the storage tank 6 due to the action of the pressure difference, so that the pressure balance in the storage tank 6 can be always kept.
The water seal formed by the liquid medium 21 in the water seal groove 2 can realize that the pressure inside the storage tank 6 is not directly communicated with the outside when changing, so that the volatile medium is not directly dissipated into the atmosphere.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (3)
1. The pressure balancing device for the storage tank for keeping the volatile medium comprises a connecting pipe, a water seal tank, a breathing pipe and a liquid supplementing device, and is characterized in that the connecting pipe is arranged in the water seal tank, the breathing pipe is communicated with the upper part of the water seal tank, and the liquid supplementing device is arranged on the side surface of the water seal tank; the connecting pipe and the water seal tank form a closed cavity, liquid medium is arranged outside the connecting pipe and at the lower part of the water seal tank, an air chamber is arranged in the connecting pipe and at the upper part of the water seal tank, and the middle sleeve of the water seal tank stretches into the liquid medium.
2. The pressure balancing device for a storage tank for volatile media according to claim 1, wherein the fluid supplementing device is a float valve or a solenoid valve interlocked with a liquid level meter.
3. The pressure balancing device for a volatile medium storage tank of claim 1, wherein the height H of the breathing tube is greater than or equal to 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223317383.4U CN219448004U (en) | 2022-12-10 | 2022-12-10 | Pressure balancing device for storage tank for maintaining volatile medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223317383.4U CN219448004U (en) | 2022-12-10 | 2022-12-10 | Pressure balancing device for storage tank for maintaining volatile medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219448004U true CN219448004U (en) | 2023-08-01 |
Family
ID=87421706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223317383.4U Active CN219448004U (en) | 2022-12-10 | 2022-12-10 | Pressure balancing device for storage tank for maintaining volatile medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219448004U (en) |
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2022
- 2022-12-10 CN CN202223317383.4U patent/CN219448004U/en active Active
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