Air and water pumping integrated equipment for polyester resin production

Abstract

The utility model relates to the technical field of polyester resin processing, and discloses air and water pumping integrated equipment for polyester resin production, which comprises a polyester resin reaction kettle, a vacuum pump and a base arranged at the bottom of the polyester resin reaction kettle, and a cooling shell is sleeved on the surface of the polyester resin reaction kettle. According to the utility model, the polyester resin reaction kettle is automatically pumped and decompressed through the vacuum pump and the first electromagnetic valve pipe, the vacuum pump is linked through the piston transmission part, then the piston rod can drive the movable pressing plate to move by using the atmospheric pressure difference, and then the vacuum pump is closed; under the action of the spring, the pressure is converted into the pressure on the elastic water bag, so that the cooling water in the elastic water bag cools the polyester resin reaction kettle through the first one-way valve pipe, the second one-way valve pipe and the cooling shell when needed, and the water pumping cooling effect is achieved in a phase-changing manner; therefore, the integrated operation effect of circulating water cooling, air exhaust and water pumping of the polyester resin reaction kettle can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester resin processing, in particular to an integrated air and water pumping device for polyester resin production. Background Art

[0002] At present, two auxiliary processes, namely, vacuuming and pressure raising and water circulation cooling, are usually carried out in the production and processing of polyester resin. As the prior art, the two technical contents of vacuuming and pressure raising and water cooling are also in the public state. For example, the public patent with the announcement number CN107930536A proposes "a polyester resin polymerization reactor, comprising a reactor body and supporting legs, one side of the feed pipe is connected to the vacuum pipe, and one end of the vacuum pipe is connected to the output end of the vacuum pump", "a cooling shell is provided on the outer surface of the heating shell, and the top of the outer surface of the cooling shell is connected to the condensing water pipe; a condensing water pipe valve is provided on the surface of the condensing water pipe; the bottom of the cooling shell is connected to the outlet pipe, and the outlet pipe surface is provided with an outlet valve". For example The authorized patent with announcement number CN209989293U proposes that "the vacuum decompression device for synthesizing polyester resin provided by the utility model has a first air suction port and a second air suction port provided on the reactor, and the first air suction port and the second air suction port are respectively connected to the first air suction device and the second air suction device, and an air suction rectifying device is provided inside the reactor, and the air suction rectifying device includes a first rectifying member and a second rectifying member, the first rectifying member is connected to the first air suction port, and the second rectifying member is connected to the second air suction port, so that the pressure inside the reactor can be quickly or slowly reduced as needed through the first rectifying member, the second rectifying member, the first air suction port and the second air suction port, so as to meet the requirements for the internal pressure of the reactor in different reaction processes."

[0003] From the analysis of the contents disclosed in the above-mentioned multiple prior arts, it can be seen that the prior art implements the two technologies of air extraction and pressure raising and water cooling by setting up two independent structures to perform operations. Although this can meet the use requirements, the implementation of the two independent structures requires two independent power sources, and the production cost and the use cost will be greatly increased, which is not conducive to promotion and use. Therefore, in order to fill the technical gaps in the prior art, the present application will provide an integrated air extraction and water extraction equipment for polyester resin production. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an integrated air and water pumping device for polyester resin production, which solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an integrated air and water pumping device for polyester resin production, comprising a polyester resin reactor, a vacuum pump and a base installed at the bottom of the polyester resin reactor, the surface of the polyester resin reactor is covered with a cooling shell, a first solenoid valve tube is installed between the output end of the vacuum pump and the top of the polyester resin reactor, and a first one-way valve tube and a second one-way valve tube are respectively connected to the top of one side and the bottom of one side of the cooling shell;

[0006] A storage box is installed on the other side of the top of the base, and an elastic water bag, a movable pressure plate, a piston transmission component and a spring are installed inside the storage box. One end of the first one-way valve tube and one end of the second one-way valve tube both pass through the side wall of the storage box and are installed inside one side of the elastic water bag.

[0007] The front end surface of the movable pressure plate is fitted and connected to the rear end surface of the elastic water bag, the output structure of the piston transmission component is transmission-connected to the middle part of the movable pressure plate, a second solenoid valve tube is installed between the rear end of the piston transmission component and the input end of the vacuum pump, and the two ends of the spring are respectively connected to the rear end surface of the movable pressure plate and the inner wall of the placement box.

[0008] Preferably, a spiral leaf sleeve is arranged between the inner wall of the cooling shell and the surface of the polyester resin reaction kettle, and the spiral leaf sleeve divides the annular space formed between the cooling shell and the polyester resin reaction kettle into a spiral space.

[0009] Preferably, the surface of the front end of the elastic water bag is bonded to the inner wall of the front end of the placement box by using double-sided adhesive, and the constituent material of the elastic water bag has the structural characteristic of reciprocating deformation and reset.

[0010] Preferably, a fluid infusion tube is installed on the top of the elastic water bag, and a sealing cap is connected to the top of the fluid infusion tube through an external thread.

[0011] Preferably, the movable pressing plate is movably sleeved inside the placement box, and the movable pressing plate is made of heat-conducting material.

[0012] Preferably, the piston transmission component comprises a piston cylinder and a piston rod, wherein the piston rod serves as an output structure of the piston transmission component, one end of the piston rod is clamped inside one end of the piston cylinder, and the other end of the piston rod is fixedly connected to the middle part of the rear end of the movable pressure plate.

[0013] Preferably, the other end of the piston cylinder is fixedly sleeved inside the rear end structure of the placement box, and a pressure relief hole is provided on the top of one end of the piston transmission component.

[0014] Preferably, a pressure sensor is installed on the inner wall of the piston cylinder, and the pressure sensor is not in contact with the reciprocating piston rod.

[0015] Preferably, the front and rear end structures of the storage box are both provided with through-shaped ventilation grooves, and the top of the storage box is an open structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model has the effect of automatically evacuating and reducing the pressure of the polyester resin reactor by means of the vacuum pump and the first electromagnetic valve tube, and the vacuum pump is linked by the piston transmission component, and then the atmospheric pressure difference is used to enable the piston rod to drive the movable pressure plate to move, and then the vacuum pump is closed, and the pressure is converted into pressure on the elastic water bag under the action of the spring, so that the cooling water inside the elastic water bag can cool the polyester resin reactor through the first one-way valve tube, the second one-way valve tube and the cooling shell when needed, thereby realizing the effect of water pumping cooling in disguise, and thus reciprocating, the circulating water cooling of the polyester resin reactor and the integrated operation effect of air and water pumping can be realized.

[0018] 2. The utility model is provided with a placement box, which not only bears the support function of related components, but also utilizes its own unique space to link the reciprocating movable pressure plate to cool the cooling water inside the elastic water bag by air convection heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a top view schematic diagram of the structure of the utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of the piston transmission component of the utility model structure;

[0022] Figure 4 It is a cross-sectional schematic diagram of the cooling shell of the utility model structure;

[0023] Figure 5 The utility model structure Figure 3 A magnified schematic diagram of center A.

[0024] In the figure: 1. polyester resin reactor; 2. base; 3. vacuum pump; 4. first solenoid valve tube; 5. cooling shell; 6. first one-way valve tube; 7. second one-way valve tube; 8. placement box; 9. elastic water bag; 10. movable pressure plate; 11. piston transmission component; 111. piston cylinder; 112. piston rod; 12. second solenoid valve tube; 13. spring; 14. spiral leaf sleeve; 15. pressure sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , an integrated air and water pumping device for polyester resin production, comprising a polyester resin reactor 1, a vacuum pump 3 and a base 2 installed at the bottom of the polyester resin reactor 1, a cooling shell 5 is mounted on the surface of the polyester resin reactor 1, a first electromagnetic valve tube 4 is installed between the output end of the vacuum pump 3 and the top of the polyester resin reactor 1, and a first one-way valve tube 6 and a second one-way valve tube 7 are respectively connected to the top of one side and the bottom of one side of the cooling shell 5;

[0027] In order to further increase the contact area between the cooling water and the polyester resin reactor 1, a spiral leaf sleeve 14 is provided between the inner wall of the cooling shell 5 and the surface of the polyester resin reactor 1, and the spiral leaf sleeve 14 divides the annular space formed between the cooling shell 5 and the polyester resin reactor 1 into a spiral space;

[0028] A placement box 8 is installed on the other side of the top of the base 2. An elastic water bag 9, a movable pressure plate 10, a piston transmission component 11 and a spring 13 are installed inside the placement box 8. One end of the first one-way valve tube 6 and one end of the second one-way valve tube 7 pass through the side wall of the placement box 8 and are installed inside one side of the elastic water bag 9.

[0029] A liquid infusion tube is installed on the top of the elastic water bag 9, and a sealing cap is connected to the top of the liquid infusion tube through external threads. To facilitate disassembly and installation, the surface of the front end of the elastic water bag 9 is glued to the inner wall of the front end of the placement box 8 with double-sided adhesive. The constituent material of the elastic water bag 9 has the structural characteristics of reciprocating deformation and reset, and thus has a continuous use effect.

[0030] The front end surface of the movable pressing plate 10 is fitted and connected with the rear end surface of the elastic water bag 9. In order to facilitate the self-cooling operation of the cooling water inside the elastic water bag 9, the movable pressing plate 10 is movably sleeved inside the placement box 8, and the movable pressing plate 10 is made of heat-conducting material. The output structure of the piston transmission component 11 is transmission-connected with the middle part of the movable pressing plate 10. A second electromagnetic valve tube 12 is installed between the rear end of the piston transmission component 11 and the input end of the vacuum pump 3. The two ends of the spring 13 are respectively connected to the rear end surface of the movable pressing plate 10 and the inner wall of the placement box 8;

[0031] The piston transmission component 11 includes a piston cylinder 111 and a piston rod 112. The piston rod 112 serves as an output structure of the piston transmission component 11. One end of the piston rod 112 is clamped inside one end of the piston cylinder 111. The other end of the piston rod 112 is fixedly connected to the middle of the rear end of the movable pressure plate 10. The other end of the piston cylinder 111 is fixedly sleeved inside the rear end structure of the placement box 8. A pressure relief hole is clamped on the top of one end of the piston transmission component 11. The piston transmission component 11 is linked with the vacuum pump 3 through the second electromagnetic valve tube 12, and then uses the air pressure change to reciprocate the movable pressure plate 10, and then converts it into a reciprocating pressure on the elastic water bag 9 under the action of the spring 13, so that the cooling water inside the elastic water bag 9 can circulate and cool the polyester resin reactor 1 through the first one-way valve tube 6, the second one-way valve tube 7 and the cooling shell 5 when needed, so as to achieve the effect of water pumping cooling in disguised form;

[0032] To avoid excessive pressure, a pressure sensor 15 is installed on the inner wall of the piston cylinder 111, and the pressure sensor 15 does not contact the reciprocating piston rod 112;

[0033] The front and rear end structures of the placement box 8 are both provided with through ventilation grooves, and the top of the placement box 8 is an open structure. The ventilation grooves utilize the airflow during the reciprocating movement of the movable pressure plate 10 to accelerate the convection of cold and hot air, further optimizing the self-heating effect of the cooling water inside the elastic water bag 9.

[0034] Working principle:

[0035] For the decompression requirement during the use of the polyester resin reactor 1, the vacuum pump 3 is started and the solenoid valve on the first solenoid valve tube 4 is opened, and the air inside the polyester resin reactor 1 is extracted from the input end of the vacuum pump 3 through the first solenoid valve tube 4 to meet the use requirement;

[0036] When the polyester resin in the polyester resin reactor 1 is processed and needs to be further cooled, the vacuum pump 3 and the electromagnetic valve on the second electromagnetic valve tube 12 are started, and the air inside the piston cylinder 111 is sucked through the second electromagnetic valve tube 12 by the input end of the vacuum pump 3. At the same time, under the action of the atmospheric pressure difference between the inside and outside of the piston cylinder 111, the piston rod 112 will drive the movable pressing plate 10 to move toward the rear end of the placement box 8 until the pressure relief hole is out of position or the pressure sensor 15 detects that the specified pressure data value has been reached, and at this time, the elastic water bag 9 is reset and expanded after losing pressure;

[0037] When the vacuum pump 3 is turned off, the movable pressure plate 10 will be converted into pressure on the elastic water bag 9 under the action of the spring 13, so that the cooling water inside the elastic water bag 9 can cool the polyester resin reactor 1 through the first one-way valve tube 6, the second one-way valve tube 7 and the cooling shell 5 when needed, thereby achieving the effect of water pumping cooling in disguise, thereby reciprocating to achieve circulating water cooling of the polyester resin reactor 1.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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 other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated air and water pumping device for polyester resin production, comprising a polyester resin reaction kettle (1), a vacuum pump (3) and a base (2) installed at the bottom of the polyester resin reaction kettle (1), characterized in that: The surface of the polyester resin reaction kettle (1) is provided with a cooling shell (5), a first electromagnetic valve tube (4) is installed between the output end of the vacuum pump (3) and the top of the polyester resin reaction kettle (1), and the top of one side and the bottom of one side of the cooling shell (5) are respectively connected to a first one-way valve tube (6) and a second one-way valve tube (7); A storage box (8) is installed on the other side of the top of the base (2), and an elastic water bag (9), a movable pressure plate (10), a piston transmission component (11) and a spring (13) are installed inside the storage box (8), and one end of the first one-way valve tube (6) and one end of the second one-way valve tube (7) both pass through the side wall of the storage box (8) and are installed inside one side of the elastic water bag (9); The front end surface of the movable pressure plate (10) is fitted and connected to the rear end surface of the elastic water bag (9); the output structure of the piston transmission component (11) is transmission-connected to the middle of the movable pressure plate (10); a second solenoid valve tube (12) is installed between the rear end of the piston transmission component (11) and the input end of the vacuum pump (3); and the two ends of the spring (13) are respectively connected to the rear end surface of the movable pressure plate (10) and the inner wall of the placement box (8).

2. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: A spiral leaf sleeve (14) is provided between the inner wall of the cooling shell (5) and the surface of the polyester resin reactor (1), and the spiral leaf sleeve (14) divides the annular space formed between the cooling shell (5) and the polyester resin reactor (1) into a spiral space.

3. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: The surface of the front end of the elastic water bag (9) is adhesively connected to the inner wall of the front end of the placement box (8) by using double-sided adhesive tape, and the constituent material of the elastic water bag (9) has the structural characteristic of reciprocating deformation and reset.

4. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: A fluid infusion tube is installed on the top of the elastic water bag (9), and a sealing cap is externally threadedly connected to the top of the fluid infusion tube.

5. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: The movable pressing plate (10) is movably sleeved inside the placement box (8), and the movable pressing plate (10) is made of heat-conducting material.

6. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: The piston transmission component (11) comprises a piston cylinder (111) and a piston rod (112). The piston rod (112) serves as an output structure of the piston transmission component (11). One end of the piston rod (112) is clamped inside one end of the piston cylinder (111), and the other end of the piston rod (112) is fixedly connected to the middle of the rear end of the movable pressure plate (10).

7. The air and water pumping integrated equipment for polyester resin production according to claim 6, characterized in that: The other end of the piston cylinder (111) is fixedly sleeved inside the rear end structure of the placement box (8), and a pressure relief hole is clamped on the top of one end of the piston transmission component (11).

8. The air and water pumping integrated equipment for polyester resin production according to claim 6, characterized in that: A pressure sensor (15) is installed on the inner wall of the piston cylinder (111), and the pressure sensor (15) is not in contact with the reciprocating piston rod (112).

9. The air and water pumping integrated equipment for polyester resin production according to claim 1, characterized in that: The front and rear end structures of the placement box (8) are both provided with through-shaped ventilation grooves, and the top of the placement box (8) is an open structure.

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