CN210259661U - Low pressure nitrogen of environment-friendly seals cold-insulated vault jar equipment - Google Patents
Low pressure nitrogen of environment-friendly seals cold-insulated vault jar equipment Download PDFInfo
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- CN210259661U CN210259661U CN201921241090.8U CN201921241090U CN210259661U CN 210259661 U CN210259661 U CN 210259661U CN 201921241090 U CN201921241090 U CN 201921241090U CN 210259661 U CN210259661 U CN 210259661U
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- nitrogen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 230000005494 condensation Effects 0.000 claims abstract description 17
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000009835 boiling Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Abstract
The utility model discloses environment-friendly low-pressure nitrogen-sealed cold-insulation vault tank equipment, which comprises a vault tank and a refrigerating device connected with the vault tank and is used for reducing the storage temperature of low-boiling-point materials in the vault tank; the oil gas condensation recovery device is used for condensing volatile matters stored in the vault and refluxing the volatile matters into the vault; the nitrogen-sealed automatic pressure maintaining device is used for detecting the pressure in the vault tank and automatically supplementing nitrogen when the pressure in the vault tank is reduced so as to improve the pressure in the vault tank, and the vault tank reduces the emission of toxic and harmful gases through the oil gas condensation and recovery device at the top and has little influence on the environment; when the temperature and the pressure in the vault are over-high and over-pressure, the materials stored in the vault are saturated, the vapor pressure rises, and at the moment, double protection is formed through a safety valve and an emergency evacuation valve in the oil-gas condensation recovery device, so that the safety in the use process is ensured; the utility model discloses a vault jar can store ordinary diesel oil and gasoline material, also can store low boiling point liquid chemical, and application range is wide.
Description
Technical Field
The utility model relates to a vault jar specifically is a low pressure nitrogen seal cold insulation vault jar equipment of environment-friendly.
Background
The vault tank used in the petrochemical industry is a normal-temperature normal-pressure tank, and the storage tank cannot be used for storing low-boiling-point materials. Because the low boiling point material can lead to the violent change of storage tank internal pressure along with the change of temperature and liquid level, only keep with external atmospheric pressure balance through the breather valve that the tank deck set up, not only can cause air pollution, still probably lead to the damage of storage tank structure, seriously threaten the safe operation of dangerization article storage enterprise.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model provides a low pressure nitrogen seals cold preservation vault jar equipment of environment-friendly can be used for taking the area to take cold preservation storage low boiling point material.
The utility model provides a low pressure nitrogen of environment-friendly seals cold-proof vault jar equipment, including the vault jar to and be connected with the vault jar
The refrigerating device is used for reducing the storage temperature of the low-boiling-point materials in the vault;
the oil gas condensation recovery device is used for condensing volatile matters stored in the vault and refluxing the volatile matters into the vault;
and the nitrogen-sealed automatic pressure maintaining device is used for detecting the pressure in the vault tank and automatically supplementing nitrogen when the pressure in the vault tank is reduced so as to improve the pressure in the vault tank.
Preferably, the refrigerating device comprises a circulating pump and a heat exchanger which are connected through pipelines, the circulating pump and the heat exchanger are respectively connected with the dome tank, and the connecting position of the circulating pump and the dome tank is lower than the connecting position of the heat exchanger and the dome tank.
Preferably, the heat exchanger is externally connected with a chilled water loop for cooling.
Preferably, the oil gas condensation recovery device comprises a condenser, and the condenser is installed and connected to the top of the vault tank.
Preferably, the condenser is externally connected with a chilled water loop for cooling.
Preferably, the nitrogen-sealed automatic pressure maintaining device comprises a self-operated pressure regulating valve, a check valve, a flowmeter and a ball valve which are sequentially connected with the arch top tank, and the ball valve is connected with nitrogen through an outer pipe.
Preferably, the top of the vault tank is also connected with an emergency evacuation valve.
Preferably, the top of the vault can is also connected with a gas phase balance pipe.
The utility model has the advantages that:
1. the vault tank reduces the emission of toxic and harmful gases through the oil gas condensation recovery device at the top, and has little influence on the environment;
2. when the temperature and the pressure in the vault tank are over-high and over-pressure, the materials stored in the vault tank are saturated, the vapor pressure rises, and at the moment, triple protection is formed through an emptying valve arranged in the oil-gas condensation and recovery device, a safety valve arranged at the top of the vault tank and an emergency emptying valve, so that the safety in the using process is ensured;
3. the vault tank of the utility model can store common diesel and gasoline materials and also can store low boiling point liquid chemicals, and has wide application range;
4. when loading and unloading ships and vehicles, the gas phase balance pipe can ensure the balance of the air pressure in the storage tank and the communication between the air pressure in the cabin and the oil groove, and can prevent the 'big breathing' loss and the oil gas emission pollution in the traditional operation process.
Drawings
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is a schematic view of the nitrogen-sealed automatic pressure maintaining device of the present invention;
FIG. 3 is a schematic view of the oil gas condensing and recovering device of the present invention;
the system comprises a vault tank, 2, nitrogen, 3, chilled water, 4, chilled water return water, 5, a nitrogen-sealed automatic pressure maintaining device, 51, a self-operated pressure regulating valve, 52, a check valve, 53, a flowmeter, 54, a ball valve, 6, an oil-gas condensation recovery device, 61, a condenser, 7, a heat exchanger, 8, a circulating pump, 9, a safety valve, 10, a gas phase balance pipe, 11 and an emergency emptying valve.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in figures 1 to 3, an environment-friendly low-pressure nitrogen-sealed cold-insulation vault tank device comprises a vault tank 1 and a vault tank 1 connected with the vault tank
The refrigerating device is used for reducing the storage temperature of the low-boiling-point materials in the vault tank 1;
the oil gas condensation recovery device 6 is used for condensing volatile matters stored in the vault tank 1 and refluxing the volatile matters into the vault tank 1;
and the nitrogen seal automatic pressure maintaining device 5 is used for detecting the pressure in the arch top tank 1 and automatically replenishing nitrogen 2 when the pressure in the arch top tank 1 is reduced so as to increase the pressure in the arch top tank 1.
The gas phase balance pipe 10 device is used for loading and unloading ships and vehicles, is used together with a liquid phase pipeline, maintains dynamic stability of gas pressure in the storage tank, reduces volatilization of materials, and prevents air pollution.
Store low boiling point material in vault jar 1 during, be provided with the multiple spot thermometer that is used for monitoring the temperature in vault jar 1, temperature risees in vault jar 1, refrigerating plant begins work, with the temperature that reduces material in vault jar 1, reduce to volatilize, working pressure in the simultaneous control vault jar 1, at this moment, also can have a small amount of volatile gas to rise, to volatile gas, oil gas condensation recovery unit 6 through vault jar 1 top, gas condensation that will volatilize retrieves, to unable condensed nitrogen gas 2, then can be arranged outward through the atmospheric valve, and after discharging the nitrogen gas 2 in vault jar 1, nitrogen seals automatic pressurizer 5 and detects 1 internal pressure reduction of vault jar, at this moment, automatically, open valve replenishment nitrogen gas 2, stabilize the pressure balance in the vault jar 1, thereby realize jar 1 to stable, the automatically regulated of pressure.
The refrigerating device comprises a circulating pump 8 and a heat exchanger 7 which are connected through a pipeline, the circulating pump 8 and the heat exchanger 7 are respectively connected with the dome tank 1, and the connecting position of the circulating pump 8 and the dome tank 1 is lower than the connecting position of the heat exchanger 7 and the dome tank 1. Further, a chilled water loop for cooling is connected outside the heat exchanger 7. Be close to the bottom position in vault jar 1 side and set up material outlet pipeline, material outlet pipeline is connected to heat exchanger 7 through circulating pump 8, in this embodiment, adopt plate heat exchanger 7, the export of plate heat exchanger 7 returns jar pipe connection to vault jar 1 through the material, at this moment, effect through circulating pump 8, the material of storing in vault jar 1 is through material outlet pipeline, to plate heat exchanger 7, under heat exchanger 7's effect, cool down the material of process, the material after will cooling again returns jar pipeline through the material and returns to vault jar 1, thereby accomplish the cooling to the material, of course, at this in-process, still be connected with freezing water 3 and freezing water return 4 pipelines to plate heat exchanger 7, improve plate heat exchanger 7's work efficiency.
Wherein, in order to avoid the internal material of jar to volatilize, oil gas condensation recovery unit 6 includes condenser 61, condenser 61 installs and connects at 1 top of vault jar, it is further, condenser 61 outer joint has the refrigerated water return circuit that is used for the cooling, at this moment, set up the admission line at the top of vault jar 1, admission line connects condenser 61, condenser 61 exit linkage vault jar 1, and simultaneously, condenser 61 still is connected with the return air pipeline, be connected to vault jar 1 through the return air pipeline, under condenser 61's effect, can condense volatile material, and flow back to vault jar 1, and to the nitrogen gas 2 of unable condensation, then return to vault jar 1 through the return air pipeline, equally, still be connected with refrigerated water 3 and refrigerated water return 4 pipelines on water to condenser 61, improve condenser 61's work efficiency. At this time, in order to ensure the safety during the operation, an air release valve is further arranged in the oil gas condensation and recovery device 6 for safety protection.
Wherein, in order to keep the pressure balance in the vault tank 1, the nitrogen-sealed automatic pressure maintaining device 5 comprises a self-operated pressure regulating valve 51, a check valve 52, a flow meter 53 and a ball valve 54 which are sequentially connected with the vault tank 1, the ball valve 54 is connected with the nitrogen 2 through an outer pipe, concretely, the nitrogen 2 is sequentially connected with the ball valve 54, the flow meter 53, the check valve 52 and the self-operated pressure regulating valve 51 through pipelines outside the vault tank 1, at the moment, the pressure in the vault tank 1 can be detected through the self-operated pressure regulating valve 51, when the pressure in the vault tank 1 is detected to be lower, the self-operated pressure regulating valve 51 is opened, so that the vault tank 1 is communicated with the outside nitrogen 2, the nitrogen 2 in the vault tank 1 is supplemented, the pressure in the vault tank 1 is regulated, the pressure in the vault tank 1 is improved, the recovery of materials is reduced, when the pressure in, the self-operated pressure regulating valve 51 is closed, and the dome can 1 is disconnected from the outside nitrogen gas 2.
In order to ensure the stability of the air pressure in the storage tank loading and unloading operation process, the gas phase balance pipe 10 is connected with a loading and unloading ship and a loading and unloading vehicle, specifically, in the storage tank material inlet and outlet process, the gas phase balance pipe 10 is communicated with the gas space of the storage tank and the loading and unloading tank, and the whole operation forms a dynamic balance system. Can prevent the discharge of a large amount of volatile materials in the operation process, and cause the emission of VOC exceeding the standard and the pollution to the atmospheric environment.
Finally, in this embodiment, the top of the vault tank 1 is further connected with an emergency evacuation valve 11 and a safety valve 9, when the interior of the vault tank 1 is over-temperature and over-pressure, materials stored in the vault tank 1 are saturated, and when the vapor pressure rises, three safety protection structures can be formed through the emergency evacuation valve 11 and the safety valve 9 and an evacuation valve in the oil-gas condensation recovery device 6, meanwhile, ball valves are arranged at connecting pipelines between the structures and used for connecting or disconnecting pipelines, the safety in the use process is guaranteed, and subsequent maintenance, replacement and other work are facilitated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. An environment-friendly low-pressure nitrogen-sealed cold-insulation vault tank device comprises a vault tank and a vault tank connected with the vault tank
The refrigerating device is used for reducing the storage temperature of the low-boiling-point materials in the vault;
the oil gas condensation recovery device is used for condensing volatile matters stored in the vault and refluxing the volatile matters into the vault;
and the nitrogen-sealed automatic pressure maintaining device is used for detecting the pressure in the vault tank and automatically supplementing nitrogen when the pressure in the vault tank is reduced so as to improve the pressure in the vault tank.
2. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 1, wherein: the refrigerating device comprises a circulating pump and a heat exchanger which are connected through pipelines, the circulating pump and the heat exchanger are respectively connected with the dome tank, and the connecting position of the circulating pump and the dome tank is lower than the connecting position of the heat exchanger and the dome tank.
3. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 2, wherein: and a chilled water loop for cooling is connected outside the heat exchanger.
4. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 1, wherein: the oil gas condensation recovery device comprises a condenser, and the condenser is installed and connected to the top of the vault tank.
5. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 4, wherein: and a chilled water loop for cooling is connected outside the condenser.
6. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 1, wherein: the nitrogen-sealed automatic pressure maintaining device comprises a self-operated pressure regulating valve, a check valve, a flowmeter and a ball valve which are sequentially connected with the arch top tank, and the ball valve is connected with nitrogen through an outer pipe.
7. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 1, wherein: and the top of the vault tank is also connected with an emergency evacuation valve.
8. The environment-friendly low-pressure nitrogen-sealed cold-keeping vault tank apparatus of claim 1, wherein: and the top of the arch top tank is also connected with a gas phase balance pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921241090.8U CN210259661U (en) | 2019-08-02 | 2019-08-02 | Low pressure nitrogen of environment-friendly seals cold-insulated vault jar equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921241090.8U CN210259661U (en) | 2019-08-02 | 2019-08-02 | Low pressure nitrogen of environment-friendly seals cold-insulated vault jar equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210259661U true CN210259661U (en) | 2020-04-07 |
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| CN201921241090.8U Active CN210259661U (en) | 2019-08-02 | 2019-08-02 | Low pressure nitrogen of environment-friendly seals cold-insulated vault jar equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190977A (en) * | 2020-09-29 | 2021-01-08 | 中冶焦耐(大连)工程技术有限公司 | Efficient, environment-friendly and energy-saving oil-water separation system and working method thereof |
-
2019
- 2019-08-02 CN CN201921241090.8U patent/CN210259661U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190977A (en) * | 2020-09-29 | 2021-01-08 | 中冶焦耐(大连)工程技术有限公司 | Efficient, environment-friendly and energy-saving oil-water separation system and working method thereof |
| CN112190977B (en) * | 2020-09-29 | 2023-10-20 | 中冶焦耐(大连)工程技术有限公司 | Efficient, environment-friendly and energy-saving oil-water separation system and working method thereof |
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