Safe and environment-friendly epoxypropane storage tank

Abstract

The safe and environment-friendly epoxypropane storage tank comprises a storage tank body, a delivery pipe is arranged at the bottom end of the peripheral wall of the storage tank body, a conduction pump is arranged in the delivery pipe, the end, away from the storage tank body, of the delivery pipe is communicated with a cooling pipe, and the peripheral wall of the cooling pipe is wrapped with a cooling structure. The utility model relates to the technical field of epoxypropane storage tanks. According to the safe and environment-friendly epoxypropane storage tank, after the temperature of epoxypropane is reduced, the epoxypropane enters a guide-in pipe, through arrangement of a connecting plug, the epoxypropane enters a hose, enters an annular pipe through the hose and then is discharged through a discharging opening, the low-temperature epoxypropane is evenly dispersed on the liquid level of the epoxypropane, and the temperature of the epoxypropane is reduced; therefore, the surface temperature of the epoxypropane is reduced, and the purpose of reducing the volatilization efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of propylene oxide storage tanks, in particular to a safe and environmentally friendly propylene oxide storage tank. Background Art

[0002] Propylene oxide is a colorless liquid with an ethereal odor, a low boiling point, flammable, and chiral. Its industrial product is generally a racemic mixture of two enantiomers.

[0003] Propylene oxide storage containers generally include steel vertical cylindrical fixed-roof storage tanks, steel horizontal storage tanks, steel spherical storage tanks, etc.

[0004] Most companies that use propylene oxide choose steel vertical cylindrical fixed-roof tanks as storage containers. Because propylene oxide has a low boiling point and is highly volatile at room temperature, when fixed-roof tanks are used for storage, a large amount of propylene oxide evaporates, causing waste of raw materials and environmental pollution. What is more serious is that the volatile matter mixes with air to form an explosive mixture, which poses an explosion hazard. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a safe and environmentally friendly propylene oxide storage tank so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A safe and environmentally friendly propylene oxide storage tank includes a storage tank, an outlet pipe is provided at the bottom end of the outer peripheral wall of the storage tank, a conduction pump is provided inside the outlet pipe, an end of the outlet pipe away from the storage tank is connected to a cooling pipe, and the outer peripheral wall of the cooling pipe is wrapped with a cooling structure;

[0008] An inlet pipe connected to the storage tank is provided at the top of the outer peripheral wall of the cooling pipe, a diversion structure connected to the inlet pipe is provided inside the storage tank, and a condensing device is provided at the top of the storage tank.

[0009] Furthermore, the cooling structure includes an outer sleeve, which is fixedly arranged on the outer wall of the cooling pipe, and positioning holes are opened at positions corresponding to the outlet pipe and the inlet pipe, and a sealing structure is provided at the positioning holes. Two connecting pipes are provided on the side wall of the outer sleeve, and the connecting pipes are connected to the outer sleeve.

[0010] Furthermore, the diversion structure includes a connecting plug, which is fixedly installed inside the inlet pipe. Two hoses are connected to one end of the connecting plug facing the inside of the storage tank. The bottom ends of the two hoses are commonly connected to an annular tube. Several discharge ports are provided at the bottom end of the annular tube, and a floating structure is provided at the top of the annular tube.

[0011] Furthermore, the floating structure includes a mounting ring, the bottom end of which is provided with an annular mounting groove, the inner wall of which fits tightly with the outer wall of the annular tube and is fixedly connected to the annular tube through a clamp, and a hollow tube is provided at the top end of the mounting ring, and the interior of the hollow tube is sealed.

[0012] Furthermore, the condensing device includes a conical cover, a through groove is provided inside the conical cover, a water inlet pipe is provided on the outer peripheral wall of the conical cover, an extension pipe is provided at the upper end of the conical cover, the extension pipe is connected to the through groove, and the top of the extension pipe is connected to a drainage pump.

[0013] Furthermore, a rotating shaft is provided inside the cooling tube, a conical platform is provided at the bottom end of the outer peripheral wall of the rotating shaft, and the conical platform is rotatably connected to the rotating shaft, and a plurality of evenly distributed spiral plates are provided on the outer peripheral wall of the conical platform.

[0014] In summary, the present invention has at least one of the following beneficial technical effects:

[0015] 1. A safe and environmentally friendly propylene oxide storage tank. After the temperature of propylene oxide is lowered, it enters the inlet pipe and, through the setting of the connecting plug, allows the propylene oxide to enter the interior of the hose, pass through the hose into the interior of the annular pipe, and then be discharged through the discharge port. The low-temperature propylene oxide is evenly dispersed on the liquid surface of the propylene oxide, thereby reducing the surface temperature of the propylene oxide and achieving the purpose of reducing the volatilization efficiency.

[0016] 2. This safe and environmentally friendly propylene oxide storage tank allows ultra-low temperature medium to be introduced into the interior of the through groove through a water inlet pipe, so that the bottom of the conical cover is fully cooled. After the propylene oxide volatilizes, other floating water forms and contacts the bottom of the conical cover, and then quickly condenses to form propylene oxide water droplets. The water droplets are gradually gathered to form larger water droplets under the guidance of the conical cover and fall down, thereby achieving the effect of recovering the volatilized propylene oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of a safe and environmentally friendly propylene oxide storage tank of the present utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of a safe and environmentally friendly propylene oxide storage tank of the present invention.

[0020] Figure 3This is a structural schematic diagram of a safe and environmentally friendly condensing device for a propylene oxide storage tank of the present invention.

[0021] Figure 4 This is a schematic structural diagram of a cooling structure of a safe and environmentally friendly propylene oxide storage tank according to the present invention.

[0022] Figure 5 This is a structural diagram of a safe and environmentally friendly propylene oxide storage tank diversion structure of the utility model

[0023] In the figure, 1. storage tank; 2. outlet pipe; 3. conduction pump; 4. cooling pipe; 41. rotating shaft; 42. conical table; 43. spiral plate; 5. cooling structure; 51. outer sleeve; 52. positioning hole; 53. connecting pipe; 6. inlet pipe; 7. diversion structure; 71. connecting plug; 72. hose; 73. annular pipe; 74. floating structure; 741. mounting ring; 742. annular mounting groove; 743. hollow pipe; 8. condensing equipment; 81. conical cover; 82. through groove; 83. water inlet pipe; 84. extension pipe; 85. drainage pump. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings. Example

[0025] Reference Figure 1 - Figure 5 The utility model discloses a safe and environmentally friendly propylene oxide storage tank 1, comprising a storage tank 1, a filling port provided on the back side of the storage tank 1 for filling propylene oxide, and a nitrogen sealing device provided. An outlet pipe 2 is provided at the bottom end of the outer peripheral wall of the storage tank 1, a conduction pump 3 is provided inside the outlet pipe 2, and a cooling pipe 4 is connected to the end of the outlet pipe 2 away from the storage tank 1, and a cooling structure 5 is wrapped around the outer peripheral wall of the cooling pipe 4;

[0026] An inlet pipe 6 communicating with the storage tank 1 is provided at the top of the outer peripheral wall of the cooling pipe 4 . A diversion structure 7 connected to the inlet pipe 6 is provided inside the storage tank 1 . A condensing device 8 is provided at the top of the storage tank 1 .

[0027] In this embodiment, when in use, propylene oxide is filled into the storage tank 1 through the filling port. After the filling is completed, the propylene oxide liquid in the storage tank 1 is discharged through the outlet pipe 2 by the conductive pump 3 and passed into the interior of the cooling pipe 4. The propylene oxide flowing in the cooling pipe 4 is cooled by the cooling structure 5 wrapped around the outside of the cooling pipe 4, and the propylene oxide is pushed upward by the continuous action of the conductive pump 3. After cooling, the propylene oxide re-enters the interior of the storage tank 1 through the inlet pipe 6. At this time, the temperature of the propylene oxide entering the storage tank 1 is lower than the temperature of the propylene oxide in the storage tank 1. The low-temperature propylene oxide is evenly dispersed on the surface of the propylene oxide in the storage tank 1 by the setting of the dispersion structure, thereby effectively reducing the temperature of the propylene oxide surface, thereby achieving the purpose of reducing the volatilization efficiency of the propylene oxide.

[0028] The volatilized propylene oxide is cooled by the condensing device 8 so as to be condensed and liquefied and fall back into the propylene oxide liquid.

[0029] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the cooling structure 5 includes an outer sleeve 51, which is fixedly arranged on the outer wall of the cooling pipe 4, and positioning holes 52 are opened at positions corresponding to the outlet pipe 2 and the inlet pipe 6 of the outer sleeve 51, and a sealing structure is provided at the positioning holes 52, and two connecting pipes 53 are provided on the side wall of the outer sleeve 51, and the connecting pipes 53 are connected to the outer sleeve 51.

[0030] In this embodiment, the interior of the outer sleeve 51 is hollow, and the contact positions between the outer sleeve 51 and the cooling tube 4 are sealed, so that a closed cavity can be formed inside the outer sleeve 51. By introducing a low-temperature liquid into one of the connecting tubes 53 and discharging it through the other connecting tube 53, there is always flowing low-temperature liquid in the cavity formed by the outer sleeve 51 and the cooling tube 4, and then the heat in the propylene oxide in the cooling tube 4 is absorbed by the low-temperature liquid, thereby achieving the purpose of lowering the temperature of the propylene oxide.

[0031] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the diversion structure 7 includes a connecting plug 71, which is fixedly installed inside the inlet pipe 6. The end of the connecting plug 71 facing the inside of the storage tank 1 is connected to two hoses 72, and the bottom ends of the two hoses 72 are commonly connected to an annular pipe 73. The bottom end of the annular pipe 73 is provided with several discharge ports, and the top of the annular pipe 73 is provided with a floating structure 74.

[0032] In this embodiment, after the temperature of propylene oxide is lowered, it enters the inlet pipe 6 and, through the setting of the connecting plug 71, allows the propylene oxide to enter the interior of the hose 72, and then pass through the hose 72 into the interior of the annular pipe 73, and then be discharged through the discharge port, so that the low-temperature propylene oxide is evenly dispersed on the liquid surface of the propylene oxide, thereby lowering the surface temperature of the propylene oxide, thereby achieving the purpose of reducing the volatilization efficiency.

[0033] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the floating structure 74 includes a mounting ring 741, and an annular mounting groove 742 is provided at the bottom end of the mounting ring 741. The inner wall of the annular mounting groove 742 is tightly fitted with the outer wall of the annular tube 73 and is fixedly connected to the annular tube 73 by a clamp. A hollow tube 743 is provided at the top end of the mounting ring 741, and the interior of the hollow tube 743 is sealed.

[0034] In this embodiment, the mounting ring 741 is installed on the outer wall of the annular tube 73 through the annular mounting groove 742 and the clamp, and the hollow tube 743 is provided to provide buoyancy to the annular tube 73, so that the position of the annular tube 73 is always maintained at the position of the propylene oxide liquid surface, thereby allowing the low-temperature propylene oxide to be evenly dispersed on the propylene oxide liquid surface when discharged.

[0035] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the condensing device 8 includes a conical cover 81, a through groove 82 is provided inside the conical cover 81, a water inlet pipe 83 is provided on the outer peripheral wall of the conical cover 81, an extension pipe 84 is provided at the upper end of the conical cover 81, the extension pipe 84 is connected to the through groove 82, and the top of the extension pipe 84 is connected to a drainage pump 85.

[0036] In this embodiment, an ultra-low temperature medium is introduced into the interior of the through groove 82 through the water inlet pipe 83, so that the bottom of the conical cover 81 is fully cooled. After the propylene oxide evaporates, other floating particles contact the bottom end of the conical cover 81 and rapidly condense to form propylene oxide droplets. These droplets are gradually gathered to form larger droplets under the guidance of the conical cover 81 and fall down, thereby achieving the effect of recovering the volatilized propylene oxide.

[0037] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a rotating shaft 41 is provided inside the cooling pipe 4, a conical platform 42 is provided at the bottom end of the outer peripheral wall of the rotating shaft 41, and the conical platform 42 is rotatably connected to the rotating shaft 41, and a plurality of evenly distributed spiral plates 43 are provided on the outer peripheral wall of the conical platform 42.

[0038] In this embodiment, when the propylene oxide liquid enters the interior of the cooling tube 4 through the outlet pipe 2, it pushes the spiral plate 43 to rotate. Under the inertia of the conical table 42, the propylene oxide is stirred, so that the propylene oxide can fully dissipate heat through the cooling structure 5, thereby achieving the purpose of improving the cooling efficiency of the propylene oxide.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A safe and environmentally friendly propylene oxide storage tank, characterized in that: The invention comprises a storage tank (1), wherein a discharge pipe (2) is provided at the bottom end of the outer peripheral wall of the storage tank (1), a conduction pump (3) is provided inside the discharge pipe (2), an end of the discharge pipe (2) away from the storage tank is connected to a cooling pipe (4), and the outer peripheral wall of the cooling pipe (4) is wrapped with a cooling structure (5); An inlet pipe (6) connected to the storage tank (1) is provided at the top of the outer peripheral wall of the cooling pipe (4), a diversion structure (7) connected to the inlet pipe (6) is provided inside the storage tank, and a condensing device (8) is provided at the top of the storage tank.

2. A safe and environmentally friendly propylene oxide storage tank according to claim 1, characterized in that: The cooling structure (5) includes an outer sleeve (51), which is fixedly arranged on the outer peripheral wall of the cooling pipe (4), and the outer sleeve (51) is provided with positioning holes (52) at positions corresponding to the outlet pipe (2) and the inlet pipe (6), and a sealing structure is provided at the positioning holes (52), and two connecting pipes (53) are provided on the side wall of the outer sleeve (51), and the connecting pipes (53) are connected to the outer sleeve (51).

3. A safe and environmentally friendly propylene oxide storage tank according to claim 2, characterized in that: The diversion structure (7) includes a connecting plug (71), which is fixedly installed inside the inlet pipe (6). One end of the connecting plug (71) facing the inside of the storage tank (1) is connected to two hoses (72), and the bottom ends of the two hoses (72) are commonly connected to an annular pipe (73). The bottom end of the annular pipe (73) is provided with a plurality of discharge ports, and the top end of the annular pipe (73) is provided with a floating structure (74).

4. A safe and environmentally friendly propylene oxide storage tank according to claim 3, characterized in that: The floating structure (74) includes a mounting ring (741), the bottom end of the mounting ring (741) is provided with an annular mounting groove (742), the inner wall of the annular mounting groove (742) is tightly fitted with the outer wall of the annular tube (73), and is fixedly connected to the annular tube (73) via a clamp, and the top end of the mounting ring (741) is provided with a hollow tube (743), and the interior of the hollow tube (743) is sealed.

5. A safe and environmentally friendly propylene oxide storage tank according to claim 4, characterized in that: The condensing device (8) includes a conical cover (81), a through groove (82) is provided inside the conical cover (81), a water inlet pipe (83) is provided on the outer peripheral wall of the conical cover (81), an extension pipe (84) is provided at the upper end of the conical cover (81), the extension pipe (84) is connected to the through groove (82), and the top end of the extension pipe (84) is connected to a drainage pump (85).

6. A safe and environmentally friendly propylene oxide storage tank according to claim 5, characterized in that: A rotating shaft (41) is provided inside the cooling tube (4), a conical platform (42) is provided at the bottom end of the outer peripheral wall of the rotating shaft (41), and the conical platform (42) is rotatably connected to the rotating shaft (41), and a plurality of evenly distributed spiral plates (43) are provided on the outer peripheral wall of the conical platform (42).

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