Material temperature control device suitable for filling process

Abstract

The utility model discloses a control device suitable for the material temperature in the filling process, and relates to the technical field of filling temperature control, the control device suitable for the material temperature in the filling process comprises a storage tank, the upper end of the storage tank is provided with a feed inlet, the lower end of the storage tank is provided with a discharge regulating valve, the lower end of the discharge regulating valve is provided with a blanking pipe, and the lower end of the blanking pipe is provided with a feed inlet. A discharging pump is installed at one end of the discharging pipe, a discharging pipe is installed at the output end of the discharging pump, a heat exchanger is installed outside the discharging pipe, a cooling cavity is formed in the heat exchanger, and a cooling water inlet is formed in the lower portion of the rear end of the heat exchanger. According to the scheme, the problems that according to an existing device, materials need to be cooled to the specified temperature through a cooling tank and then are filled, the materials with high viscosity are difficult to discharge through a pump, material residues of a storage tank and a pipeline are large, energy consumption is high, the storage tank is not suitable for product switching, and the product quality is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filling temperature control, in particular to a device for controlling the temperature of materials in a filling process. Background Art

[0002] In the production process of polyether, the main raw materials include rigid foam polyether, soft foam polyether and polymer polyols. For a variety of customized products, the storage and filling temperature requirements of the tank are high. In particular, high-viscosity materials are difficult to fill, so the control of the discharge temperature is required to be high.

[0003] Currently, there are filling devices with cooling functions, such as the environmentally friendly system for rapid cold filling of viscous materials in announcement number CN108640069A. The device includes a storage tank, a feed pump, a cooling tank, a discharge valve, an auger, a material valve and a refrigerant valve. The cooling tank adopts a scraper structure and the stirring paddle adopts an axial flow structure.

[0004] However, the above device needs to rely on a cooling tank to reduce the material to a specified temperature before filling. It is difficult to discharge materials with higher viscosity through a pump. There is a large amount of material residue in the storage tank and pipeline, and the energy consumption is high. It is not suitable for product switching in the storage tank, and there is a large problem in product quality. Therefore, we proposed a control device for the material temperature of the filling process to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for controlling the temperature of materials during the filling process, so as to solve the problem that the existing device proposed in the above background technology needs to rely on a cooling tank to reduce the material to a specified temperature before filling. It is difficult to discharge materials with high viscosity through a pump, and the material residue in the storage tank and pipeline is large and the energy consumption is high. It is not suitable for product switching in the storage tank, and there are major problems with product quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a control device for the material temperature during the filling process, comprising a storage tank, a feed port being provided at the upper end of the storage tank, a discharge regulating valve being installed at the lower end of the storage tank, a discharge pipe being installed at the lower end of the discharge regulating valve, a discharge pump being installed at one end of the discharge pipe, a discharge pipe being installed at the output end of the discharge pump, a heat exchanger being installed on the outside of the discharge pipe, a cooling chamber being provided inside the heat exchanger, a cooling water inlet being provided below the rear end of the heat exchanger, and a cooling water outlet being provided above the rear end of the heat exchanger.

[0007] Preferably, a confluence main pipe is installed at one end of the discharge pipe, a U-shaped section is provided inside the discharge pipe, two U-shaped sections are provided, and both U-shaped sections extend to the outside of the heat exchanger, a first electrically controlled three-way valve is installed inside the U-shaped section, a confluence branch pipe is installed at the front end of the first electrically controlled three-way valve, and one end of the confluence branch pipe is connected to the confluence main pipe.

[0008] Preferably, a second electrically controlled three-way valve is installed at the connection between the branch conduit and the main conduit.

[0009] Preferably, the rear end of the second electrically controlled three-way valve is fixedly connected to the storage tank via a bracket.

[0010] Preferably, temperature sensors are installed on both the branch conduits and the main conduit.

[0011] Preferably, a baffle is provided inside the heat exchanger, and a plurality of baffles are provided, and the baffles are staggered.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model arranges a heat exchanger outside the discharge pipe, and a plurality of staggered baffle structures are arranged inside the heat exchanger. After cooling water is pumped in, the temperature of the material in the discharge pipe can be brought down by the baffle effect, thereby achieving cooling treatment. The converging main pipe at the end of the discharge pipe can be directly connected to the filling equipment, which solves the problem that the existing device needs to rely on the cooling tank to reduce the material to a specified temperature before filling. It is difficult to discharge materials with high viscosity through the pump, and the material residue in the storage tank and pipeline is large and the energy consumption is high. It is not suitable for product switching with the storage tank, and there are major product quality problems.

[0014] The temperature control method of the heat exchanger of the present invention not only relies on the conventional cooling water flow regulation, but is also provided with a three-section controllable structure. According to the viscosity of the filling material and the cooling requirement, the cooling method of different length sections can be selected. When the first electric-controlled three-way valve on the lower U-shaped section is opened to connect the U-shaped section with the confluence branch pipe, the time and distance for the material to remain in the heat exchanger is the shortest, which is suitable for materials with low cooling requirements and high viscosity. When the first electric-controlled three-way valve is switched to connect the discharge pipe and the upper U-shaped section is opened, the material can be cooled and cooled. When the first electrically controlled three-way valve on the U-shaped segment connects the U-shaped segment with the confluence branch pipe, the time and distance the material stays in the heat exchanger is moderate, which is suitable for materials with moderate cooling requirements and viscosity. When the first electrically controlled three-way valves on the two sets of U-shaped segments are switched to connect the discharge pipes, the material directly enters the confluence main pipe along the end of the discharge pipe. At this time, the time and distance the material stays in the heat exchanger is the longest, which is suitable for materials with high cooling requirements and low viscosity. The three-stage heat exchange improves the flexibility of filling and cooling, making temperature control more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the heat exchanger of the present utility model;

[0018] In the figure: 1. Storage tank; 2. Feed inlet; 3. Discharge regulating valve; 4. Feed pipe; 5. Discharge pump; 6. Heat exchanger; 7. Discharge pipe; 8. U-shaped section; 9. First electrically controlled three-way valve; 10. Converging main pipe; 11. Converging branch pipe; 12. Second electrically controlled three-way valve; 13. Temperature sensor; 14. Cooling water inlet; 15. Cooling water outlet; 16. Cooling chamber; 17. Baffle; 18. Bracket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-3 The utility model provides an embodiment: a device for controlling the temperature of materials in a filling process, comprising a storage tank 1, a material feed port 2 being provided at the upper end of the storage tank 1, a discharge regulating valve 3 being installed at the lower end of the storage tank 1, a discharge pipe 4 being installed at the lower end of the discharge regulating valve 3, a discharge pump 5 being installed at one end of the discharge pipe 4, a discharge pipe 7 being installed at the output end of the discharge pump 5, a heat exchanger 6 being installed outside the discharge pipe 7, a cooling chamber 16 being provided inside the heat exchanger 6, a cooling water inlet 14 being provided below the rear end of the heat exchanger 6, and a cooling water outlet 15 being provided above the rear end of the heat exchanger 6.

[0021] See also Figure 1 and Figure 2, a confluence main pipe 10 is installed at one end of the discharge pipe 7, a U-shaped section 8 is provided inside the discharge pipe 7, two U-shaped sections 8 are provided, and both U-shaped sections 8 extend to the outside of the heat exchanger 6, a first electrically controlled three-way valve 9 is installed inside the U-shaped section 8, a confluence branch pipe 11 is installed at the front end of the first electrically controlled three-way valve 9, and one end of the confluence branch pipe 11 is connected to the confluence main pipe 10. The heat exchanger 6 is a three-stage heat exchange structure. According to the viscosity of the filling material and the cooling requirement, cooling methods of different lengths can be selected. When the first electrically controlled three-way valve 9 on the lower U-shaped section 8 is opened to connect the U-shaped section 8 with the confluence branch pipe 11, the time and distance for the material to remain in the heat exchanger 6 are the shortest. , suitable for materials with low cooling requirements and high viscosity. When the first electrically controlled three-way valve 9 is switched to connect the discharge pipe 7, and the first electrically controlled three-way valve 9 on the upper U-shaped section 8 is opened to connect the U-shaped section 8 with the confluence branch 11, the time and distance for the material to remain in the heat exchanger 6 is moderate, which is suitable for materials with moderate cooling requirements and viscosity. When the first electrically controlled three-way valves 9 on the two groups of U-shaped sections 8 are switched to connect the discharge pipe 7, the material directly enters the confluence main pipe 10 along the end of the discharge pipe 7. At this time, the time and distance for the material to remain in the heat exchanger 6 is the longest, which is suitable for materials with high cooling requirements and low viscosity. The three-stage heat exchange improves the flexibility of filling and cooling, making the temperature control more precise.

[0022] See also Figure 1 A second electrically controlled three-way valve 12 is installed at the connection between the branch pipe 11 and the main pipe 10. When the branch pipe 11 and the main pipe 10 are connected, opening the second electrically controlled three-way valve 12 can prevent material backflow.

[0023] See also Figure 1 The rear end of the second electrically controlled three-way valve 12 is fixedly connected to the storage tank 1 through a bracket 18, and the bracket 18 ensures the stability of the pipeline material feeding.

[0024] See also Figure 1 The branch conduits 11 and the main conduit 10 are both equipped with temperature sensors 13. The temperature sensors 13 on the branch conduits 11 and the main conduit 10 can detect the discharge temperatures of different modes.

[0025] See also Figure 3 A baffle 17 is provided inside the heat exchanger 6. There are multiple baffles 17, and the multiple baffles 17 are staggered. The setting of the baffle 17 relies on the baffle effect to extend the time that the cooling water in the same length stays in the heat exchanger 6, thereby improving the heat exchange efficiency.

[0026] Working principle: When in use, the filling material is placed inside the storage tank 1, discharged into the discharge pipe 4 by the discharge regulating valve 3, pumped into the discharge pipe 7 by the discharge pump 5, and sent to the filling equipment by the converging main pipe 10 at the end of the discharge pipe 7. A heat exchanger 6 is provided outside the discharge pipe 7, and a plurality of staggered baffles 17 are provided inside the heat exchanger 6. After the cooling water is pumped in, the temperature of the material in the discharge pipe 7 can be brought down by the baffle effect, thereby achieving a cooling treatment;

[0027] The temperature control method of the heat exchanger 6 does not only rely on conventional cooling water flow regulation, but is also provided with a three-stage controllable structure. According to the viscosity of the filling material and the cooling requirement, cooling methods of different lengths can be selected. When the first electrically controlled three-way valve 9 on the lower U-shaped section 8 is opened, the U-shaped section 8 is connected to the confluence branch 11, and the time and distance for the material to remain in the heat exchanger 6 is the shortest, which is suitable for materials with low cooling requirements and high viscosity. When the first electrically controlled three-way valve 9 is switched to connect to the discharge pipe 7 and the upper U-shaped section 8 is opened, the material is cooled and cooled. When the first electrically controlled three-way valve 9 connects the U-shaped section 8 with the confluence branch pipe 11, the time and distance that the material stays in the heat exchanger 6 is moderate, which is suitable for materials with cooling requirements and moderate viscosity. When the first electrically controlled three-way valves 9 on the two groups of U-shaped sections 8 are switched to connect the discharge pipe 7, the material directly enters the confluence main pipe 10 along the end of the discharge pipe 7. At this time, the time and distance that the material stays in the heat exchanger 6 is the longest, which is suitable for materials with high cooling requirements and low viscosity. The three-stage heat exchange improves the flexibility of filling and cooling, making the temperature control more precise.

[0028] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for controlling the temperature of materials during a filling process, comprising a storage tank (1), wherein the upper end of the storage tank (1) is provided with a feed port (2), and the lower end of the storage tank (1) is provided with a discharge regulating valve (3), characterized in that: A discharge pipe (4) is installed at the lower end of the discharge regulating valve (3), a discharge pump (5) is installed at one end of the discharge pipe (4), a discharge pipe (7) is installed at the output end of the discharge pump (5), a heat exchanger (6) is installed outside the discharge pipe (7), a cooling chamber (16) is provided inside the heat exchanger (6), a cooling water inlet (14) is provided below the rear end of the heat exchanger (6), and a cooling water outlet (15) is provided above the rear end of the heat exchanger (6).

2. The device for controlling the temperature of materials during the filling process according to claim 1, characterized in that: A confluence main pipe (10) is installed at one end of the discharge pipe (7), a U-shaped section (8) is provided inside the discharge pipe (7), two U-shaped sections (8) are provided, and both U-shaped sections (8) extend to the outside of the heat exchanger (6), a first electrically controlled three-way valve (9) is installed inside the U-shaped section (8), a confluence branch pipe (11) is installed at the front end of the first electrically controlled three-way valve (9), and one end of the confluence branch pipe (11) is connected to the confluence main pipe (10).

3. The device for controlling the temperature of materials during the filling process according to claim 2, characterized in that: A second electrically controlled three-way valve (12) is installed at the connection between the branch confluence pipe (11) and the main confluence pipe (10).

4. The device for controlling the temperature of materials during the filling process according to claim 3, characterized in that: The rear end of the second electrically controlled three-way valve (12) is fixedly connected to the storage tank (1) via a bracket (18).

5. The device for controlling the temperature of materials during the filling process according to claim 4, characterized in that: Temperature sensors (13) are installed on both the branch confluence pipe (11) and the main confluence pipe (10).

6. The device for controlling the temperature of materials during the filling process according to claim 1, characterized in that: A baffle (17) is provided inside the heat exchanger (6), and a plurality of baffles (17) are provided, and the plurality of baffles (17) are staggered.

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