Water circulation thermostat condenser and condensing thermostat system

Abstract

The utility model provides a kind of water circulation constant-temperature condenser and condensing constant-temperature system, including first cavity, second cavity and third cavity, first cavity is equipped with inner circulation water inlet, outer circulation water inlet and outer circulation water outlet, third cavity is equipped with inner circulation water outlet, first cavity is communicated with second cavity by flow limiting passage, second cavity is communicated with third cavity by multiple mixer outer pipes, second cavity is equipped with water distribution chamber, outer circulation water inlet is connected with water distribution chamber by outer circulation connecting pipe, water distribution chamber is connected with multiple mixer inner pipes respectively, each mixer inner pipe is inserted into the inside of one mixer outer pipe, and the periphery of each mixer inner pipe is evenly distributed with multiple cold water outlet holes, hot water that returns from inner circulation water inlet mixes with newly entered cold water between mixer inner pipe and mixer outer pipe, cooling water is used without refrigerated water, cooling effect of temperature reduction and constant temperature can also be achieved, and cooling cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, and in particular to a water-circulating constant temperature condenser and a condensation constant temperature system. Background Technology

[0002] Currently, extruders use tubular heat exchangers for heat exchange and cooling. The external circulating water temperature needs to be 8-15 degrees Celsius lower than the internal circulating water temperature. Daily cooling water supply cannot meet production requirements, necessitating the use of lower-quality chilled water when using tubular heat exchangers, resulting in higher production costs. Furthermore, the time lag in heat exchange in tubular heat exchangers causes temperature fluctuations of 3-5 degrees Celsius, failing to meet the constant temperature requirements of extruder production. This often leads to significant fluctuations in sheet thickness and transparency, as well as issues like fringing and delamination, due to large temperature fluctuations, failing to meet consumers' demands for improved quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a water circulation constant temperature condenser and condensation constant temperature system that can meet the internal circulation constant temperature requirements and eliminate the dependence on the low water temperature of the external circulation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a water-circulating constant-temperature condenser, comprising a first cavity, a second cavity, and a third cavity. The first cavity is provided with an internal circulation inlet, an external circulation inlet, and an external circulation outlet. The third cavity is provided with an internal circulation outlet. The first cavity is connected to the second cavity through a flow-limiting channel. The second cavity is connected to the third cavity through multiple mixer outer tubes. The second cavity is provided with a water distribution chamber. The external circulation inlet is connected to the water distribution chamber through an external circulation connecting pipe. The water distribution chamber is connected to multiple mixer inner tubes respectively. Each mixer inner tube extends into the interior of a mixer outer tube. Multiple cold water outlet holes are evenly distributed on the outer periphery of each mixer inner tube.

[0005] Furthermore, a flow-limiting channel is formed between the water distribution chamber and the cavity wall of the second cavity.

[0006] Furthermore, the distance between the water distribution chamber and the cavity wall of the second cavity is 12-14 mm.

[0007] Furthermore, the diameter of the cold water outlet hole is 4-6 mm.

[0008] Furthermore, the diameter of the outer tube of the mixer is 45-55mm, and the diameter of the inner tube of the mixer is 23-27mm.

[0009] This utility model also relates to a condensation constant temperature system, including a water circulation constant temperature condenser as described in any of the above claims. The inner circulation outlet of the water circulation constant temperature condenser is connected to the inlet of the component to be cooled via an inner circulation water pump and an inner circulation water inlet pipe. The inner circulation inlet is connected to the outlet of the component to be cooled via an inner circulation return pipe. The outer circulation inlet is connected to the cold water inlet pipe via a one-way valve. The outer circulation outlet is connected to the hot water return pipe via a solenoid valve.

[0010] Furthermore, the internal circulating water pump is equipped with a pressure sensor.

[0011] Furthermore, a thermocouple is provided at the internal circulation outlet.

[0012] Furthermore, the solenoid valve is DN25.

[0013] Furthermore, a water flow indicator is provided between the solenoid valve and the hot water return pipe.

[0014] The beneficial effects of this utility model are as follows: It provides a water-circulating constant-temperature condenser, including a first chamber, a second chamber, and a third chamber. The first chamber is provided with an internal circulation inlet, an external circulation inlet, and an external circulation outlet. The third chamber is provided with an internal circulation outlet. The first chamber is connected to the second chamber through a flow-limiting channel. The second chamber is connected to the third chamber through multiple mixer outer tubes. The second chamber is provided with a water distribution chamber. The external circulation inlet is connected to the water distribution chamber through an external circulation connecting pipe. The water distribution chamber is connected to multiple mixer inner tubes. Each mixer inner tube extends into the interior of a mixer outer tube. Multiple cold water outlet holes are evenly distributed on the outer circumference of each mixer inner tube. The hot water returning from the internal circulation inlet and the newly entered cold water are mixed between the mixer inner tube and the mixer outer tube. Even when only cooling water is used without chilled water, it can achieve cooling and constant-temperature cooling effect, effectively reducing cooling costs. Attached Figure Description

[0015] The specific structure of this utility model is described in detail below with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the water-circulating thermostatic condenser of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the water-circulating thermostatic condenser of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the water-circulating thermostatic condenser of this utility model;

[0019] Figure 4 This is a structural block diagram of the condensation constant temperature system of this utility model;

[0020] 1-Shell; 11-Internal circulation inlet; 12-Internal circulation outlet; 13-Mixer outer pipe fixing plate; 14-Mixer outer pipe; 15-Water distribution chamber; 16-Mixer inner pipe; 161-Cold water outlet;

[0021] 2-Upper flange; 21-External circulation inlet; 22-External circulation outlet; 23-External circulation connection pipe;

[0022] 3-Lower flange;

[0023] 100 - Water-circulating thermostatic condenser; 200 - Internal circulating water pump; 300 - Component to be cooled; 400 - Thermocouple; 500 - Check valve; 600 - Cold water inlet pipe; 700 - Solenoid valve; 800 - Hot water return pipe; 900 - Water flow indicator. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0030] Example 1

[0031] Please see Figures 1 to 3 This embodiment provides a water-circulating constant-temperature condenser, including a first cavity, a second cavity, and a third cavity. The first cavity is provided with an internal circulation inlet, an external circulation inlet, and an external circulation outlet. The third cavity is provided with an internal circulation outlet. The first cavity is connected to the second cavity through a flow-limiting channel. The second cavity is connected to the third cavity through multiple mixer outer tubes. The second cavity is provided with a water distribution chamber. The external circulation inlet is connected to the water distribution chamber through an external circulation connecting pipe. The water distribution chamber is connected to multiple mixer inner tubes respectively. Each mixer inner tube extends into the interior of a mixer outer tube. Multiple cold water outlet holes are evenly distributed on the outer periphery of each mixer inner tube.

[0032] In this embodiment, the water-circulating thermostatic condenser includes a cylindrical shell 1, an upper flange 2, and a lower flange 3. The upper flange 2 and the lower flange 3 are fixed to the upper and lower ends of the shell 1, respectively. The upper flange 2 is provided with an external circulation inlet 21 and an external circulation outlet 22. The shell interior is formed with a first cavity, a second cavity, and a third cavity. The shell sidewall corresponding to the first cavity is provided with an internal circulation inlet 11, and the shell sidewall corresponding to the third cavity is provided with an internal circulation outlet 12. The first cavity is connected to the second cavity through a flow-limiting channel. A mixer outer tube fixing plate 13 is provided between the second cavity and the third cavity. Multiple mixer outer tubes 14 are evenly arranged on the mixer outer tube fixing plate 13. The second cavity is connected to the first cavity through the multiple mixer outer tubes 14. The three chambers are interconnected. The second chamber is equipped with a water distribution chamber 15. The external circulation inlet 21 is connected to the water distribution chamber 15 through the external circulation connecting pipe 23. The water distribution chamber 15 is connected to multiple mixer inner pipes 16. Each mixer inner pipe 16 extends into the interior of a mixer outer pipe 14. The end of each mixer inner pipe 16 near the third chamber is sealed to ensure that cooling water can form a mixing chamber between the mixer inner pipe 16 and the mixer outer pipe 14 from the side of the mixer inner pipe 16. Multiple cold water outlet holes 161 are evenly distributed on the outer periphery of each mixer inner pipe 16. The end of each mixer inner pipe 16 near the third chamber is sealed to ensure that cooling water can overflow from the cold water outlet holes 161 on the side to ensure the mixing effect.

[0033] When it is necessary to lower the water temperature in the internal circulation water circuit, a certain amount of hot water is discharged through the external circulation outlet 22, while a certain amount of cooling water is input through the external circulation inlet 21. The remaining hot water in the first chamber enters the second chamber through the flow restriction channel and then enters the mixing chamber in the multiple mixer outer pipes 14. At the same time, the cooling water enters the water distribution chamber 15 through the external circulation connecting pipe 23 and is evenly distributed to the multiple mixer inner pipes 16 in the water distribution chamber 15. It then enters the mixing chamber through the cold water outlet 161 of the mixer inner pipe 16 and mixes with the hot water in the mixing chamber. This ensures that the temperature change is within a reasonable range while cooling the hot water. Finally, the mixed cooling water enters the third chamber and is output from the internal circulation outlet 12.

[0034] The water-circulating thermostatic condenser provided in this embodiment can control the temperature error of the cooling water within ±0.1 degrees Celsius. Even when only cooling water is used without the need for chilled water, it can still achieve a cooling effect of cooling down and maintaining a constant temperature, effectively reducing cooling costs.

[0035] In one embodiment, a flow-limiting channel is formed between the water distribution chamber 15 and the cavity wall of the second cavity.

[0036] By setting the water distribution chamber 15 and the cavity wall of the second cavity separately, a flow-limiting channel can be formed between the water distribution chamber 15 and the cavity wall of the second cavity, which effectively simplifies the structure of the water circulation thermostatic condenser.

[0037] In one embodiment, the distance between the water distribution chamber 15 and the cavity wall of the second cavity is 12-14 mm.

[0038] When the distance between the water distribution chamber 15 and the cavity wall of the second cavity is 12-14 mm, the hot water flow rate can be reduced, ensuring that the hot water and the newly entered cooling water can be fully mixed, thereby ensuring the cooling effect. Preferably, the distance between the water distribution chamber and the cavity wall of the second cavity is 13 mm.

[0039] In one embodiment, the diameter of the cold water outlet 161 is 4-6 mm.

[0040] When the diameter of the cold water outlet hole 161 is 4-6mm, the injection speed of the cooling water can be guaranteed, ensuring that the hot water and the newly entered cooling water can be fully mixed, thereby ensuring the cooling effect. Preferably, the diameter of the cold water outlet hole 161 is 5mm, and the cold water outlet holes 161 are evenly distributed around the inner tube of the mixer and are evenly spaced along the length of the inner tube of the mixer, for a total of 72 holes.

[0041] In one embodiment, the diameter of the outer pipe 14 of the mixer is 45-55 mm, and the diameter of the inner pipe 16 of the mixer is 23-27 mm.

[0042] When the diameter of the outer pipe 14 of the mixer is 45-55mm and the diameter of the inner pipe 16 of the mixer is 23-27mm, the injection volume of hot water into the mixing chamber between the outer pipe 14 and the inner pipe 16 of the mixer can be guaranteed, thereby ensuring the mixing effect of the hot water and the newly entered cooling water, and thus ensuring the cooling effect. Preferably, the diameter of the outer pipe 14 of the mixer is 50mm and the diameter of the inner pipe 16 of the mixer is 25mm.

[0043] Example 2

[0044] Please see Figure 4 This utility model also relates to a condensation constant temperature system, including a water circulation constant temperature condenser 100 as described in any of the above claims. The inner circulation outlet of the water circulation constant temperature condenser 100 is connected to the inlet of the component to be cooled 300 in sequence through an inner circulation water pump 200 and an inner circulation water inlet pipe. The inner circulation water inlet is connected to the outlet of the component to be cooled 300 through an inner circulation return water pipe. The outer circulation water inlet is connected to the cold water inlet pipe 600 through a one-way valve 500. The outer circulation water outlet is connected to the hot water return pipe 800 through a solenoid valve 700.

[0045] In this embodiment, to provide cooling water that meets constant temperature conditions to the component 300 to be cooled, the cooling water in the system can be circulated by the internal circulation water pump 200 to remove the heat generated by the component 300 in a timely manner. To ensure the cooling effect of the cooling water on the component 300, a thermocouple 400 is provided at the internal circulation outlet. When the thermocouple 400 detects that the temperature of the cooling water delivered to the component 300 is higher than a preset value, the system controls the solenoid valve 700 to open, utilizing the internal circulation water itself. The pressure forces a certain amount of high-temperature water through the solenoid valve 700 to the hot water return pipe 800, and finally into the external circulation water tank. At this time, the water pressure inside the water circulation thermostatic condenser 100 is lower than the water pressure of the external circulation cooling water. The one-way valve 500 opens, and the external circulation cooling water enters the mixing chamber of the water circulation thermostatic condenser 100 through the cold water inlet pipe 600 and the one-way valve 500 to replenish water and mix with the internal circulation cooling water, thereby cooling the internal circulation cooling water. This cycle repeats to ensure the stable operation of the thermostatic system.

[0046] To ensure drainage stability, a water flow indicator 900 is installed between the solenoid valve 700 and the hot water return pipe 800. The water flow indicator 900 can monitor the drainage action and changes, so that operators can clearly observe the water flow status. When abnormalities occur, such as poor drainage, excessively high or low temperature, maintenance and production personnel can determine whether the fault is mechanical or electrical based on the water flow status and the pressure sensor installed in the internal circulation water pump 200. This allows for quick problem detection and repair, improves equipment maintenance efficiency, and avoids unnecessary over-maintenance.

[0047] To prevent excessive drainage and replenishment of external cooling water, which could lead to a rapid drop in the temperature of the internal circulating water, the solenoid valve 700 is a DN25. This small-displacement DN25 solenoid valve 700 controls the drainage process with high frequency and low flow rate. Compared to a DN32 solenoid valve 700, the DN25 valve 700 effectively prevents excessive drainage and replenishment, thus avoiding rapid cooling of the internal circulating cooling water and ensuring stable operation of the thermostatic system. The temperature error can be controlled within ±0.1 degrees Celsius, achieving the same cooling and thermostatic function using cooling water without the need for chilled water.

[0048] As can be seen from the above description, the beneficial effects of this utility model are as follows: It provides a water-circulating constant-temperature condenser, including a first cavity, a second cavity, and a third cavity. The first cavity is provided with an internal circulation inlet, an external circulation inlet, and an external circulation outlet. The third cavity is provided with an internal circulation outlet. The first cavity is connected to the second cavity through a flow-limiting channel. The second cavity is connected to the third cavity through multiple mixer outer tubes. The second cavity is provided with a water distribution chamber. The external circulation inlet is connected to the water distribution chamber through an external circulation connecting pipe. The water distribution chamber is connected to multiple mixer inner tubes respectively. Each mixer inner tube extends into the interior of a mixer outer tube. Multiple cold water outlet holes are evenly distributed on the outer periphery of each mixer inner tube. The hot water returning from the internal circulation inlet and the newly entered cold water are mixed between the mixer inner tube and the mixer outer tube. Even when only cooling water is used without the need for chilled water, it can achieve cooling and constant-temperature cooling effect, effectively reducing cooling costs.

[0049] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

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