Styrene buried storage tank storage system
By introducing protective mechanisms and temperature control into the styrene underground storage tank system, the problem of high-temperature burns from nitrogen generators was solved, achieving safe and reliable styrene storage.
Patent Information
- Application Number
- CN202423055122.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-10
AI Technical Summary
The existing styrene underground storage tank system generates high temperatures during the nitrogen production process in the nitrogen generator, causing burns to workers.
A styrene underground storage tank system was designed, comprising a base, an explosion-proof cooling water system, an installation mechanism, and a nitrogen generation mechanism. The nitrogen generation vessel is protected by a protective mechanism, and the styrene temperature is controlled by a temperature controller and a chiller to prevent high temperatures from being generated.
It effectively prevents burns to workers caused by the high temperature of the nitrogen generator, ensures that the temperature inside the storage tank is within a safe range, avoids the risk of explosion, and meets occupational safety and health requirements.
Smart Images
Figure CN223546862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petrochemical oil storage and transportation technology, specifically a styrene underground storage tank system. Background Technology
[0002] Styrene monomers are chemically highly reactive and readily undergo self-polymerization in the absence of any polymerization inhibitors. This reaction is exothermic, and without control, it can lead to a continuous rise in temperature and even tank explosions. According to SH3007 "Design Code for Tank Farms in Petrochemical Storage and Transportation Systems," horizontal tanks with a volume capacity of 100 m³ or less can be used. Styrene storage tanks should be horizontal underground tanks. The storage temperature is 5–20℃, therefore styrene storage tanks require a circulating cooling system. According to SH3047 "Design Code for Occupational Safety and Health in Petrochemical Enterprises," styrene storage tanks need nitrogen sealing. During styrene storage, inert gases in the gas phase gradually replace benzene. Oxygen in ethylene can gradually increase the oxygen content in the gas phase, leading to an explosion hazard when the oxygen content reaches 8% (v / v). Therefore, the inert gas in the gas seal area must be frequently replaced to prevent the oxygen content from increasing to 8%. In styrene, the polymerization inhibitor loses its inhibitory effect when there is absolutely no dissolved oxygen. Therefore, nitrogen sealing requires air saturation of styrene, and the oxygen content in the styrene must be frequently replenished with nitrogen gas containing 5% oxygen to ensure the effective inhibition of polymerization. Furthermore, styrene poses serious health risks to humans; therefore, its storage must be subject to strict chemical, physical, and management conditions to meet the aforementioned occupational safety and health requirements.
[0003] Currently, most styrene underground storage tank systems on the market continuously produce nitrogen in the nitrogen generator during operation. The nitrogen production process generates high temperatures, and workers who come into contact with the surface of the nitrogen generator may suffer burns. Utility Model Content
[0004] The purpose of this utility model is to provide a styrene underground storage tank system to solve the problem mentioned in the background art that the nitrogen generator continuously produces nitrogen, and the high temperature generated during the nitrogen production process can cause burns to workers who come into contact with the surface of the nitrogen generator. To achieve the above objective, this utility model provides the following technical solution: a styrene underground storage tank system, including a base, the top of the back of the base being fixedly connected to the bottom of an explosion-proof cooling water mechanism, the top of the middle part of the base being fixedly connected to the bottom of an installation mechanism, the installation mechanism including an installation base plate, an installation block, a placement groove and two installation slide grooves, the inner wall of the installation mechanism being slidably connected to the outer wall of the nitrogen generator, and the nitrogen generator consisting of two nitrogen generators, a nitrogen generator connecting pipe, a supporting base plate, a nitrogen generator connecting plate, two rebound columns and two rebound springs;
[0005] The bottom of the nitrogen generating mechanism is movably abutted against the top of the two protective mechanisms. The two protective mechanisms include a protective connecting plate, a protective toothed plate, a protective toothed shaft, a protective rotating rod, two protective fixing blocks, and a protective plate. The bottom of the two protective mechanisms is fixedly connected to the top of the mounting mechanism. The outer wall of the nitrogen generating mechanism is fixedly connected to one end of the connecting mechanism. The bottom of the connecting mechanism is movably engaged with the top of the base.
[0006] Preferably, the base includes a buried tank body, two interfaces, a floor, a pressure monitor, a temperature controller, an emergency controller, and a fireproof breathing valve. The top of the buried tank body is provided with two interfaces, and the outer walls of the two interfaces are movably engaged with the inner wall of the floor. The top of the floor near the front is fixedly connected to the bottom of the pressure monitor, and the top of the left side of the floor is fixedly connected to the bottom of the temperature controller. The top of the right side of the floor is fixedly connected to the bottom of the emergency controller, and the top of one of the interfaces is movably engaged with the bottom of the fireproof breathing valve.
[0007] Preferably, the explosion-proof chilled water mechanism consists of a chiller body, a circulating cooling water pipe, and an internal cooler. The bottom of the chiller body is fixedly connected to the top of the back of the floor, and the front of the middle part of the chiller body is fixedly connected to one end of the circulating cooling water pipe. The other end of the circulating cooling water pipe is fixedly connected to one end of the internal cooler, and the other end of the internal cooler is fixedly connected to the front of the bottom of the chiller body.
[0008] Preferably, the bottom of the mounting base plate is fixedly connected to the top of the middle part of the floor, and the top of the mounting base plate is fixedly connected to the bottom of the mounting block. The top of the middle part of the mounting block is provided with a placement groove, and two installation slides are respectively provided on the top of the mounting block near the left side. The two installation slides are symmetrically distributed about the center of the left side of the mounting block, and two spring-loaded through holes are respectively provided at the bottom of the placement groove.
[0009] Preferably, the outer walls of the bottoms of both nitrogen generators are slidably connected to the inner walls of the mounting slot, and the tops of the two nitrogen generators are movably engaged with the bottoms on both sides of the nitrogen generating connecting pipe. The bottoms of both nitrogen generators are movably abutted against the tops of the supporting base plate, and the left side of the supporting base plate is fixedly connected to the right side of the nitrogen generating connecting plate. The bottoms of the supporting base plate are fixedly connected to the tops of the two rebound columns, and the bottoms of the two rebound columns are movably abutted against the tops of the two rebound springs. The outer walls of the bottoms of the two rebound columns are slidably connected to the inner walls of the two rebound through holes, and one of the nitrogen generators has a nitrogen through hole on its outer wall.
[0010] Preferably, the two protective connecting plates are fixedly connected to the front and back sides of the left side of the nitrogen generating connecting plate, respectively, and the top of the front of the protective connecting plate is fixedly connected to the bottom of the protective tooth plate. The front of the protective tooth plate is engaged with the outer wall of the protective tooth shaft, and the inner wall of the protective tooth shaft is movably engaged with the outer wall of one end of the protective rotating rod. The outer walls of the protective rotating rod near one end and the outer walls of the other end are rotatably connected to the inner walls of the two protective fixing blocks, and the outer wall of the middle part of the protective rotating rod is movably engaged with the inner wall of the protective plate. The bottom of both protective fixing blocks is fixedly connected to the top of the front of the mounting block.
[0011] Preferably, the connecting mechanism consists of a nitrogen pipeline, a self-regulating valve, and a nitrogen connecting pipe. The outer wall of one end of the nitrogen pipeline is movably engaged with the inner wall of the nitrogen through hole, and the other end of the nitrogen pipeline is movably engaged with one end of the nitrogen connecting pipe. The outer wall of the middle part of the nitrogen connecting pipe is movably engaged with the back of the self-regulating valve, and the bottom of the nitrogen connecting pipe is movably engaged with the top of the interface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In this invention, by preventing the nitrogen generator from entering the placement slot, the nitrogen generator moves downward, causing the supporting base plate to move downward. The supporting base plate moves downward, causing the nitrogen generator connecting plate to move downward. The nitrogen generator connecting plate moves downward through the protective toothed plate. The downward movement of the protective toothed plate, through meshing, causes the protective toothed shaft to rotate. The rotation of the protective toothed shaft causes the protective rotating rod to rotate. The rotation of the protective rotating rod causes the protective plate to flip. The flipping movement of the protective plate can protect the outer perimeter of the nitrogen generator.
[0014] In this invention, the temperature controller controls the temperature of styrene inside the buried tank to be 13°C. When the temperature exceeds 19°C, the temperature controller controls the chiller to turn on, and the circulating water is cooled by the chiller before entering the buried tank to lower the temperature of the styrene. When the temperature of styrene inside the buried tank is below 9°C, the temperature controller and the chiller are turned off. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of the present invention;
[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 3 This is an exploded view of the present invention;
[0018] Figure 4 This is an exploded view of the installation mechanism and the protective mechanism in this utility model;
[0019] Figure 5This is an exploded view of the nitrogen generating mechanism and the connecting mechanism in this utility model.
[0020] In the diagram: 1. Base; 101. Buried tank body; 102. Interface; 103. Floor; 104. Pressure monitor; 105. Temperature controller; 106. Emergency controller; 107. Fireproof breather valve; 2. Explosion-proof chiller mechanism; 201. Chiller body; 202. Circulating cooling water pipe; 203. Internal cooler; 3. Installation mechanism; 301. Mounting base plate; 302. Mounting block; 303. Placement groove; 304. Mounting slide; 4. Manufacturing Nitrogen mechanism; 401, nitrogen generator; 402, nitrogen generator connecting pipe; 403, supporting base plate; 404, nitrogen generator connecting plate; 405, rebound column; 406, rebound spring; 5, protective mechanism; 501, protective connecting plate; 502, protective toothed plate; 503, protective toothed shaft; 504, protective rotating rod; 505, protective fixing block; 506, protective plate; 6, connecting mechanism; 601, nitrogen pipeline; 602, self-regulating valve; 603, nitrogen connecting pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a styrene buried storage tank system, including a base 1, the top of the back of the base 1 is fixedly connected to the bottom of the explosion-proof cold water mechanism 2, the top of the middle part of the base 1 is fixedly connected to the bottom of the installation mechanism 3, the installation mechanism 3 includes an installation base plate 301, an installation block 302, a placement groove 303 and two installation slide grooves 304, the inner wall of the installation mechanism 3 is slidably connected to the outer wall of the nitrogen generation mechanism 4, the nitrogen generation mechanism 4 is composed of two nitrogen generation kettles 401, a nitrogen generation connecting pipe 402, a support base plate 403, a nitrogen generation connecting plate 404, two rebound columns 405 and two rebound springs 406;
[0023] The bottom of the nitrogen generating mechanism 4 is movably abutted against the top of the two protective mechanisms 5. The two protective mechanisms 5 include a protective connecting plate 501, a protective toothed plate 502, a protective toothed shaft 503, a protective rotating rod 504, two protective fixing blocks 505 and a protective plate 506. The bottom of the two protective mechanisms 5 is fixedly connected to the top of the mounting mechanism 3. The outer wall of the nitrogen generating mechanism 4 is fixedly connected to one end of the connecting mechanism 6. The bottom of the connecting mechanism 6 is movably engaged with the top of the base 1.
[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the base 1 includes a buried tank body 101, two interfaces 102, a floor 103, a pressure monitor 104, a temperature controller 105, an emergency controller 106, and a fireproof breathing valve 107. The top of the buried tank body 101 is provided with two interfaces 102, and the outer walls of the two interfaces 102 are respectively movably engaged with the inner wall of the floor 103. The top of the floor 103 near the front is fixedly connected to the bottom of the pressure monitor 104, and the top of the left side of the floor 103 is fixedly connected to the bottom of the temperature controller 105. The top of the right side of the floor 103 is fixedly connected to the bottom of the emergency controller 106, and the top of one of the interfaces 102 is movably engaged with the bottom of the fireproof breathing valve 107.
[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the explosion-proof chiller mechanism 2 consists of a chiller body 201, a circulating cooling water pipe 202, and an internal cooler 203. The bottom of the chiller body 201 is fixedly connected to the top of the back of the floor 103, and the front of the middle part of the chiller body 201 is fixedly connected to one end of the circulating cooling water pipe 202. The other end of the circulating cooling water pipe 202 is fixedly connected to one end of the internal cooler 203, and the other end of the internal cooler 203 is fixedly connected to the front of the bottom of the chiller body 201.
[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the bottom of the mounting base plate 301 is fixedly connected to the top of the middle part of the floor 103, and the top of the mounting base plate 301 is fixedly connected to the bottom of the mounting block 302. The top of the middle part of the mounting block 302 is provided with a mounting groove 303, and two mounting slides 304 are respectively provided on the top of the mounting block 302 near the left side. The two mounting slides 304 are symmetrically distributed about the center of the left side of the mounting block 302, and two spring-loaded through holes are respectively provided at the bottom of the mounting groove 303.
[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the outer walls of the bottoms of the two nitrogen generators 401 are slidably connected to the inner walls of the placement slots 303, and the tops of the two nitrogen generators 401 are movably engaged with the bottoms on both sides of the nitrogen generating connecting pipe 402. The bottoms of the two nitrogen generators 401 are movably abutting against the tops of the support base plate 403, and the left side of the support base plate 403 is fixedly connected to the right side of the nitrogen generating connecting plate 404. The bottoms of the support base plate 403 are fixedly connected to the tops of the two rebound columns 405, and the bottoms of the two rebound columns 405 are movably abutting against the tops of the two rebound springs 406. The outer walls of the bottoms of the two rebound columns 405 are slidably connected to the inner walls of the two rebound through holes. One of the nitrogen generators 401 has a nitrogen through hole on its outer wall. By preventing the nitrogen generator 401 from entering the placement slots 303, the nitrogen generator 401 moves downward, causing the support base plate 403 to move downward, and the support base plate 403 moves downward, causing the nitrogen generating connecting plate 404 to move downward.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the two protective connecting plates 501 are fixedly connected to the front and back sides of the left side of the nitrogen generating connecting plate 404, respectively, and the top of the front of the protective connecting plate 501 is fixedly connected to the bottom of the protective toothed plate 502. The front of the protective toothed plate 502 is engaged with the outer wall of the protective toothed shaft 503, and the inner wall of the protective toothed shaft 503 is movably engaged with the outer wall of one end of the protective rotating rod 504. The outer walls of the protective rotating rod 504 near one end and the outer walls of the other end are rotatably connected to the inner walls of the two protective fixing blocks 505, respectively. The outer wall of the middle section is movably engaged with the inner wall of the protective plate 506. The bottom of the two protective fixing blocks 505 are fixedly connected to the top of the front of the mounting block 302. The nitrogen generating connecting plate 404 moves downward through the protective toothed plate 502. The downward movement of the protective toothed plate 502 drives the protective toothed shaft 503 to rotate through meshing. The rotation of the protective toothed shaft 503 drives the protective rotating rod 504 to rotate. The rotation of the protective rotating rod 504 drives the protective plate 506 to flip. The flipping movement of the protective plate 506 can protect the periphery of the nitrogen generating kettle 401.
[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the connecting mechanism 6 consists of a nitrogen pipeline 601, a self-regulating valve 602, and a nitrogen connecting pipe 603. The outer wall of one end of the nitrogen pipeline 601 is movably engaged with the inner wall of the nitrogen through hole, and the other end of the nitrogen pipeline 601 is movably engaged with one end of the nitrogen connecting pipe 603. The outer wall of the middle part of the nitrogen connecting pipe 603 is movably engaged with the back of the self-regulating valve 602, and the bottom of the nitrogen connecting pipe 603 is movably engaged with the top of the interface 102.
[0030] The usage and advantages of this utility model: The working process of this styrene underground storage tank system is as follows:
[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, by preventing the nitrogen generator 401 from entering the placement tank 303, the nitrogen generator 401 moves downward, causing the supporting base plate 403 to move downward. The downward movement of the supporting base plate 403 causes the nitrogen generator connecting plate 404 to move downward. The downward movement of the nitrogen generator connecting plate 404 causes the protective toothed plate 502 to move downward. The downward movement of the protective toothed plate 502, through meshing, causes the protective toothed shaft 503 to rotate. The rotation of the protective toothed shaft 503 causes the protective rotating rod 504 to rotate. The rotation of the protective rotating rod 504 causes the protective plate 506 to rotate. The protective plate 506 rotates to protect the nitrogen generator 401. The temperature controller 105 controls the temperature of styrene inside the buried tank body 101 to be 13°C. When the temperature exceeds 19°C, the temperature controller 105 controls the chiller body 201 to turn on. Circulating water is cooled by the chiller body 201 and then enters the buried tank body 101 to lower the temperature of the styrene. When the temperature of styrene inside the buried tank body 101 is below 9°C, the temperature controller 105 and the chiller body 201 are turned off.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A styrene underground storage tank system, comprising a base (1), characterized in that: The top of the back of the base (1) is fixedly connected to the bottom of the explosion-proof cold water mechanism (2), and the top of the middle part of the base (1) is fixedly connected to the bottom of the installation mechanism (3). The installation mechanism (3) includes an installation base plate (301), an installation block (302), a placement groove (303) and two installation slides (304). The inner wall of the installation mechanism (3) is slidably connected to the outer wall of the nitrogen generating mechanism (4). The nitrogen generating mechanism (4) consists of two nitrogen generating kettles (401), a nitrogen generating connecting pipe (402), a support base plate (403), a nitrogen generating connecting plate (404), two rebound columns (405) and two rebound springs (406). The bottom of the nitrogen generating mechanism (4) is movably abutted against the top of the two protective mechanisms (5). The two protective mechanisms (5) include a protective connecting plate (501), a protective toothed plate (502), a protective toothed shaft (503), a protective rotating rod (504), two protective fixing blocks (505) and a protective plate (506). The bottom of the two protective mechanisms (5) is fixedly connected to the top of the mounting mechanism (3). The outer wall of the nitrogen generating mechanism (4) is fixedly connected to one end of the connecting mechanism (6). The bottom of the connecting mechanism (6) is movably engaged with the top of the base (1).
2. The styrene underground storage tank system according to claim 1, characterized in that: The base (1) includes a buried tank body (101), two interfaces (102), a floor (103), a pressure monitor (104), a temperature controller (105), an emergency controller (106), and a fireproof breathing valve (107). The top of the buried tank body (101) is provided with two interfaces (102), and the outer walls of the two interfaces (102) are movably engaged with the inner walls of the floor (103). The top of the floor (103) near the front is fixedly connected to the bottom of the pressure monitor (104), and the top of the left side of the floor (103) is fixedly connected to the bottom of the temperature controller (105). The top of the right side of the floor (103) is fixedly connected to the bottom of the emergency controller (106), and the top of one of the interfaces (102) is movably engaged with the bottom of the fireproof breathing valve (107).
3. A styrene underground storage tank system according to claim 2, characterized in that: The explosion-proof chilled water mechanism (2) consists of a chiller body (201), a circulating cooling water pipe (202), and an internal cooler (203). The bottom of the chiller body (201) is fixedly connected to the top of the back of the floor (103), and the front of the middle part of the chiller body (201) is fixedly connected to one end of the circulating cooling water pipe (202). The other end of the circulating cooling water pipe (202) is fixedly connected to one end of the internal cooler (203), and the other end of the internal cooler (203) is fixedly connected to the front of the bottom of the chiller body (201).
4. A styrene underground storage tank system according to claim 2, characterized in that: The bottom of the mounting base plate (301) is fixedly connected to the top of the middle part of the floor (103), and the top of the mounting base plate (301) is fixedly connected to the bottom of the mounting block (302). The top of the middle part of the mounting block (302) is provided with a mounting groove (303), and the top of the mounting block (302) near the left side is provided with two mounting slides (304). The two mounting slides (304) are symmetrically distributed about the center of the left side of the mounting block (302), and the bottom of the mounting groove (303) is provided with two spring-loaded through holes.
5. A styrene underground storage tank system according to claim 4, characterized in that: The outer walls of the bottom of both nitrogen generators (401) are slidably connected to the inner wall of the placement groove (303), and the tops of the two nitrogen generators (401) are movably engaged with the bottoms on both sides of the nitrogen generating connecting pipe (402). The bottoms of the two nitrogen generators (401) are movably abutted against the top of the support base plate (403), and the left side of the support base plate (403) is fixedly connected to the right side of the nitrogen generating connecting plate (404). The bottoms of the support base plate (403) are fixedly connected to the tops of the two rebound columns (405), and the bottoms of the two rebound columns (405) are movably abutted against the tops of the two rebound springs (406). The outer walls of the bottoms of the two rebound columns (405) are slidably connected to the inner walls of the two rebound through holes, and a nitrogen through hole is provided on the outer wall of one of the nitrogen generators (401).
6. A styrene underground storage tank system according to claim 5, characterized in that: The two protective connecting plates (501) are fixedly connected to the front and back sides of the left side of the nitrogen generating connecting plate (404) respectively on opposite sides. The top of the front of the protective connecting plate (501) is fixedly connected to the bottom of the protective toothed plate (502). The front of the protective toothed plate (502) is engaged with the outer wall of the protective toothed shaft (503). The inner wall of the protective toothed shaft (503) is movably engaged with the outer wall of one end of the protective rotating rod (504). The outer wall of the protective rotating rod (504) near one end and the outer wall of the other end are rotatably connected to the inner walls of the two protective fixing blocks (505) respectively. The outer wall of the middle part of the protective rotating rod (504) is movably engaged with the inner wall of the protective plate (506). The bottom of the two protective fixing blocks (505) is fixedly connected to the top of the front of the mounting block (302).
7. A styrene underground storage tank system according to claim 5, characterized in that: The connecting mechanism (6) consists of a nitrogen pipeline (601), a self-regulating valve (602), and a nitrogen connecting pipe (603). The outer wall of one end of the nitrogen pipeline (601) is movably engaged with the inner wall of the nitrogen through hole, and the other end of the nitrogen pipeline (601) is movably engaged with one end of the nitrogen connecting pipe (603). The outer wall of the middle part of the nitrogen connecting pipe (603) is movably engaged with the back of the self-regulating valve (602), and the bottom of the nitrogen connecting pipe (603) is movably engaged with the top of the interface (102).