Condenser for producing trioctyl trimellitate

Abstract

The utility model belongs to the technical field of preparation and application of trioctyl trimellitate, and particularly discloses a condenser for producing trioctyl trimellitate. Comprising a skid-mounted base, a first circular through groove, a second circular through groove, a first sealed trumpet-shaped feeding port, a second sealed trumpet-shaped discharging port, a first sealing gasket, a second sealing gasket, a plurality of first screw holes, a plurality of second screw holes, a first material guiding part, a second material guiding part, a first transition material guiding part, a second transition material guiding part, a two-way material guiding part and the like. The utility model has the beneficial effects that the feeding structure, the middle rapid cooling structure and the discharging structure all adopt a split modular design, so that the assembly, disassembly and maintenance are convenient, and meanwhile, the production and processing of a single component are also convenient; the first material guide part, the second material guide part, the first transition material guide part, the second transition material guide part and the two-way material guide part which form the middle rapid cooling structure can exchange heat with a condensation medium in the condensate box body to the maximum extent, and rapid condensation cooling is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of preparation and application of trioctyl trimellitate, and in particular relates to a condenser used for producing trioctyl trimellitate. Background Art

[0002] Trioctyl trimellitate is a heat-resistant and durable plasticizer that combines the advantages of polyester plasticizers and monomer plasticizers. Its compatibility, processability, and low-temperature resistance are also better than those of polyester plasticizers, and its electrical properties are excellent.

[0003] The production process of trioctyl trimellitate comprises the following steps: adding trimellitic anhydride, octanol and an organic tin catalyst into an esterification kettle for reaction; recovering the catalyst from the mixture after the reaction in the esterification kettle through a first filter; and entering a stripping kettle for neutralization and water washing in the stripping kettle; and then separating the alcohol and water in the mixture from the system; and passing through a stripping tower, the alcohol and water enter a heat exchanger for condensation and cooling, and then enter a second separation tank; the remaining material in the stripping kettle is a crude product, which is poured into a decolorization kettle and mixed with activated carbon; and the crude product containing activated carbon is filtered through a second filter to obtain a product.

[0004] In the above-mentioned production process of trioctyl trimellitate, there is a condensation step, that is, alcohol and water enter the heat exchanger through the stripping tower for condensation and cooling, and then enter the second separation tank. At present, the traditional condensation design is inconvenient for maintenance and has low condensation efficiency, which requires structural improvement.

[0005] Based on the above problems, the utility model provides a condenser for producing trioctyl trimellitate. Utility Model Content

[0006] Purpose of the utility model: The purpose of the utility model is to provide a condenser for producing trioctyl trimellitate in view of the shortcomings of the prior art, so as to solve the condensation problem existing in the current production of trioctyl trimellitate in the background technology.

[0007] Technical solution: The condenser for producing trioctyl trimellitate provided by the utility model comprises a skid-mounted base, a condensate tank, a condensate medium circulation inlet and a condensate medium circulation outlet, wherein the first circular through groove and the second circular through groove are symmetrically arranged at both ends of the condensate tank, and the first sealed trumpet-shaped feed inlet and the second sealed trumpet-shaped feed outlet are installed at both ends of the condensate tank through the first circular through groove and the second circular through groove, and the first sealed trumpet-shaped feed inlet and the second sealed trumpet-shaped feed outlet are respectively provided with a first sealing gasket and a second sealing gasket used in conjunction with the first circular through groove and the second circular through groove at one end. The first sealed trumpet-shaped feed port and the second sealed trumpet-shaped discharge port are symmetrically provided with a plurality of first screw holes and a plurality of second screw holes respectively at one end, the first screw hole and the second screw hole are respectively provided with a first material guide portion and a second material guide portion, one end of the first material guide portion and the second material guide portion are respectively provided with a first transition material guide portion and a second transition material guide portion, and the opposite ends of the first transition material guide portion and the second transition material guide portion are connected by two-way material guide portions; wherein, a third sealing gasket used in conjunction with the first screw hole is provided at one end of the first material guide portion, and a fourth sealing gasket used in conjunction with the second screw hole is provided at one end of the second material guide portion.

[0008] According to the technical solution, the condenser for producing trioctyl trimellitate also includes a first perforated flange ring and a second perforated flange ring respectively arranged on the outer walls of the first sealed trumpet-shaped feed port and the second sealed trumpet-shaped discharge port, and a plurality of first screw grooves and a plurality of second screw grooves respectively arranged in the end surfaces of both ends of the condensate box and located in the outer layers of the first circular through groove and the second circular through groove, and a first nut bolt for fixing the first sealed trumpet-shaped feed port and the condensate box through the first perforated flange ring and the first screw groove, and a second nut bolt for fixing the second sealed trumpet-shaped discharge port and the condensate box through the second perforated flange ring and the second screw groove.

[0009] In the technical solution, the condenser for producing trioctyl trimellitate also includes a first drain port and a second drain port respectively arranged on the outer walls of the lowest ends of the first sealed trumpet-shaped feed port and the second sealed trumpet-shaped discharge port, and a first drain pipe with a valve and a second drain pipe with a valve respectively connected to the first drain port and the second drain port.

[0010] In the technical solution of the present invention, the first transition material guide portion and the second transition material guide portion are respectively configured as a circular structure, a spiral structure or a strip-shaped hollow plate structure.

[0011] Compared with the prior art, the condenser for producing trioctyl trimellitate of the utility model has the following beneficial effects: 1. The feed structure, the intermediate rapid cooling structure and the discharge structure all adopt a split modular design, which is convenient for assembly and disassembly, and the individual components are also convenient for production and processing; 2. The first material guide part, the second material guide part, the first transition material guide part, the second transition material guide part, and the two-way material guide part that constitute the intermediate rapid cooling structure can perform heat exchange with the condensing medium in the condensate tank to the greatest extent, thereby realizing rapid condensation and cooling; 3. The first emptying port, the second emptying port, the first emptying pipe with a valve, and the second emptying pipe with a valve facilitate the cleaning of the first sealed trumpet-shaped feed port and the second sealed trumpet-shaped discharge port, thereby realizing maximum recovery of raw materials and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the main structure of a condenser for producing trioctyl trimellitate according to the utility model;

[0014] Among them, the numbers in the figure are as follows: 100-skid-mounted base, 101-condensate tank, 102-condensate medium circulation inlet, 103-condensate medium circulation outlet, 200-first circular through groove, 201-first sealed trumpet-shaped feed inlet, 202-first screw groove, 203-first flange ring with holes, 204-first bolt with nut, 205-first sealing gasket, 206-first screw hole, 207-first material guide part, 208-third sealing gasket, 209-first transition material guide part, 2 10-second sealed trumpet-shaped discharge port, 211-second screw groove, 212-second flange ring with holes, 213-second bolt with nuts, 214-second circular through groove, 215-second sealing gasket, 216-second screw hole, 217-second material guide part, 218-fourth sealing gasket, 219-second transition material guide part, 220-two-way material guide part, 2011-first emptying port, 2101-second emptying port, 2012 first emptying pipe with valve, 2102 second emptying pipe with valve. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] Embodiment 1

[0018] like Figure 1 The condenser for producing trioctyl trimellitate shown in the figure comprises a skid-mounted base 100, a condensate tank 101, a condensate medium circulation inlet 102 and a condensate medium circulation outlet 103.

[0019] A first circular through groove 200 and a second circular through groove 214 are symmetrically arranged at both ends of the condensate tank 101.

[0020] A first sealed trumpet-shaped feed inlet 201 and a second sealed trumpet-shaped discharge outlet 210 are installed in both ends of the condensate tank 101 through a first circular through groove 200 and a second circular through groove 214.

[0021] The first sealed trumpet-shaped feed port 201 and the second sealed trumpet-shaped discharge port 210 are respectively provided with a first sealing gasket 205 and a second sealing gasket 215 for use with the first circular through groove 200 and the second circular through groove 214.

[0022] A plurality of first screw holes 206 and a plurality of second screw holes 216 are symmetrically arranged in one end of the first sealed trumpet-shaped feed inlet 201 and the second sealed trumpet-shaped discharge outlet 210, respectively.

[0023] The first screw hole 206 and the second screw hole 216 are respectively provided with a first material guide portion 207 and a second material guide portion 217.

[0024] A first transition material guide portion 209 and a second transition material guide portion 219 are respectively provided at one end of the first material guide portion 207 and the second material guide portion 217.

[0025] The opposite ends of the first transition guide portion 209 and the second transition guide portion 219 are connected by two-way guide portions 220;

[0026] Among them, one end of the first guide part 207 is provided with a third sealing gasket 208 used in conjunction with the first screw hole 206, and one end of the second guide part 217 is provided with a fourth sealing gasket 218 used in conjunction with the second screw hole 216. The above structural design is a split modular type as a whole, which is convenient for assembly or disassembly. At the same time, the first guide part 207, the second guide part 217, the first transition guide part 209, and the second transition guide part 219 adopt a circular structure with a diameter size between 5mm-15mm, which can quickly circulate heat exchange and cooling with the condensing medium.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, the condenser for producing trioctyl trimellitate further includes a first perforated flange ring 203 and a second perforated flange ring 212 respectively arranged on the outer walls of the first sealed trumpet-shaped feed port 201 and the second sealed trumpet-shaped discharge port 210, and a plurality of first screw grooves 202 and a plurality of second screw grooves 211 respectively arranged in the end faces at both ends of the condensate tank 101 and located on the outer layers of the first circular through groove 200 and the second circular through groove 214, and a first nut bolt 204 for fixing the first sealed trumpet-shaped feed port 201 and the condensate tank 101 through the first perforated flange ring 203 and the first screw groove 202, and a second nut bolt 213 for fixing the second sealed trumpet-shaped discharge port 210 and the condensate tank 101 through the second perforated flange ring 212 and the second screw groove 211. The above-mentioned structure is designed as a split modular type, which is convenient for assembly or disassembly.

[0029] Embodiment 3

[0030] On the basis of Example 1 or Example 2, the condenser for producing trioctyl trimellitate further includes a first drain port 2011 and a second drain port 2101 respectively arranged on the outer walls of the lowest ends of the first sealed trumpet-shaped feed port 201 and the second sealed trumpet-shaped discharge port 210, and a first drain pipe 2012 with a valve and a second drain pipe 2102 with a valve respectively connected to the first drain port 2011 and the second drain port 2101. The above structural design completes the complete discharge of residual materials and facilitates cleaning or residual material collection.

[0031] In addition, the preferred first transition guide portion 209 and the second transition guide portion 219 are respectively set to a circular structure or a spiral structure (to extend the contact time with the condensing medium and improve the condensation efficiency) or a strip-shaped hollow plate structure (with a thickness of 2mm-5mm, to expand the contact area with the condensing medium and improve the condensation efficiency).

[0032] The working principle or structural principle of the condenser of this structure for producing trioctyl trimellitate:

[0033] The trioctyl trimellitate raw material flows or circulates in the condensate tank 101 with circulating condensing medium through the first sealed trumpet-shaped feed port 201, the first feed guide portion 207, the first transition feed guide portion 209, the two-way feed guide portion 220, the second transition feed guide portion 219, the second feed guide portion 217, and the second sealed trumpet-shaped feed outlet 210 (the condensing medium enters the condensing liquid tank 101 through the condensing medium circulation inlet 102 and flows out through the condensing medium circulation outlet 103). In this process, the trioctyl trimellitate raw material in the first feed guide portion 207, the first transition feed guide portion 209, the two-way feed guide portion 220, the second transition feed guide portion 219, and the second feed guide portion 217 fully exchanges heat with the condensing medium in the condensing liquid tank 101, thereby achieving corresponding rapid condensation and cooling.

[0034] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A condenser for producing trioctyl trimellitate, comprising a skid-mounted base (100), a condensate tank (101), a condensate medium circulation inlet (102) and a condensate medium circulation outlet (103), characterized in that: A first circular through groove (200) and a second circular through groove (214) are symmetrically arranged at both ends of the condensate tank (101). A first sealed trumpet-shaped feed inlet (201) and a second sealed trumpet-shaped discharge outlet (210) are installed in both ends of the condensate tank (101) through a first circular through groove (200) and a second circular through groove (214). One end of the first sealed trumpet-shaped feed port (201) and the second sealed trumpet-shaped discharge port (210) are respectively provided with a first sealing gasket (205) and a second sealing gasket (215) for use in conjunction with the first circular through groove (200) and the second circular through groove (214). A plurality of first screw holes (206) and a plurality of second screw holes (216) are symmetrically arranged in one end of the first sealed trumpet-shaped feed port (201) and the second sealed trumpet-shaped discharge port (210), respectively. The first screw hole (206) and the second screw hole (216) are respectively provided with a first material guide portion (207) and a second material guide portion (217). A first transition material guide portion (209) and a second transition material guide portion (219) are respectively provided at one end of the first material guide portion (207) and the second material guide portion (217). The opposite ends of the first transition material guide portion (209) and the second transition material guide portion (219) are connected via two-way material guide portions (220); One end of the first material guide portion (207) is provided with a third sealing gasket (208) for use in conjunction with the first screw hole (206), and one end of the second material guide portion (217) is provided with a fourth sealing gasket (218) for use in conjunction with the second screw hole (216).

2. The condenser for producing trioctyl trimellitate according to claim 1, characterized in that: The condenser for producing trioctyl trimellitate also comprises a first perforated flange ring (203) and a second perforated flange ring (212) respectively arranged on the outer walls of a first sealed trumpet-shaped feed port (201) and a second sealed trumpet-shaped discharge port (210), and a plurality of first screw grooves (202) and a plurality of second screw grooves (211) respectively arranged in the end surfaces at both ends of a condensate tank (101) and located on the outer layers of a first circular through groove (200) and a second circular through groove (214), and a first nut bolt (204) for fixing and assembling the first sealed trumpet-shaped feed port (201) and the condensate tank (101) through the first perforated flange ring (203) and the first screw groove (202), and a second nut bolt (213) for fixing and assembling the second sealed trumpet-shaped discharge port (210) and the condensate tank (101) through the second perforated flange ring (212) and the second screw groove (211).

3. The condenser for producing trioctyl trimellitate according to claim 1, characterized in that: The condenser for producing trioctyl trimellitate also includes a first drain port (2011) and a second drain port (2101) respectively arranged on the outer walls of the lowest ends of the first sealed trumpet-shaped feed port (201) and the second sealed trumpet-shaped discharge port (210), and a first drain pipe (2012) with a valve and a second drain pipe (2102) with a valve respectively connected to the first drain port (2011) and the second drain port (2101).

4. The condenser for producing trioctyl trimellitate according to claim 1, characterized in that: The first transition material guiding portion (209) and the second transition material guiding portion (219) are respectively configured as a circular structure, a spiral structure, or a strip-shaped hollow plate structure.

Images