Vacuum degassing constant-pressure water replenishing device with high heat exchange efficiency

Abstract

The utility model discloses a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency, which relates to the technical field of hot water heating and air conditioning system water treatment, and comprises a base, the outer wall of the top of the base is fixedly connected with a vacuum tank, a water cooling box and a vacuum pump in sequence, and a condensation cooling mechanism is arranged on the water cooling box. And a heating type stirring mechanism is arranged on the vacuum tank. According to the vacuum degassing device, the condensation cooling mechanism is arranged, so that heated high-temperature gas can be fully cooled in the vacuum degassing process, the performance and the operation stability of the vacuum pump can be ensured, and the vacuum degassing effect is further ensured; the heating type stirring mechanism is arranged, liquid in the hollow tank can be fully and evenly heated and stirred through lifting and rotating movement of an electric heating stirring rod, the escape rate of gas dissolved in water can be increased in the vacuum degassing process, gas in water can be removed more rapidly, heat resistance in the heat exchange process is reduced, and the vacuum degassing efficiency is improved. The heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment for hot water heating and air conditioning systems, and in particular to a vacuum degassing constant-pressure water replenishing device with high heat exchange efficiency. Background Art

[0002] In the field of hot water heating and air-conditioning system water treatment, a vacuum degassing constant pressure water replenishment device is required to achieve a stable supply of water to the external water circulation system. The replenished water is water from which free gas and dissolved gas are removed, avoiding direct replenishment of gas-containing water to corrode equipment and pipelines, as well as causing gas blockage, thereby extending the service life of equipment and pipelines.

[0003] After searching, the patent with application number 202021392269.6 discloses a high-efficiency constant-pressure water replenishment degassing device, which includes a base, a vacuum tank, a vacuum pump and a heating and stirring structure. This patent uses heating and stirring to improve the efficiency of vacuum degassing, but there are the following shortcomings in actual operation:

[0004] First, during the vacuum degassing process, the high-temperature gas after heating will have an adverse effect on the vacuum pump if it is not fully cooled, affecting the performance and operational stability of the vacuum pump, and further affecting the effect of vacuum degassing;

[0005] Secondly, during the heating and stirring process, since the stirring blade is always located at the bottom of the vacuum tank, the liquid in other areas of the vacuum tank cannot be fully stirred, resulting in uneven stirring and uneven heating of the liquid, thereby reducing the escape rate of dissolved gas in the water during the vacuum degassing process. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency comprises a base, a vacuum tank, a water cooling box and a vacuum pump are fixedly connected to the top outer wall of the base in sequence, a condensation cooling mechanism is provided on the water cooling box, and a heating stirring mechanism is provided on the vacuum tank;

[0009] The condensation and cooling mechanism includes a serpentine condenser tube that penetrates and is fixed in the water cooling box, a cooling rod and a water temperature sensor that are fixedly embedded in the top of the water cooling box in sequence, and a controller that is fixedly connected to the front outer wall of the water cooling box;

[0010] By setting up the condensation and cooling mechanism, the heated high-temperature gas can be fully cooled during the vacuum degassing process, which is beneficial to ensure the performance and operation stability of the vacuum pump, thereby ensuring the effect of vacuum degassing.

[0011] As a preferred technical solution, a filling pipe is provided on the top of the water cooling box, and a sealing cover is screwed on the filling pipe.

[0012] As a preferred technical solution, both ends of the serpentine condenser are sealedly connected to the two sides of the water cooling box, one end of the serpentine condenser is connected to the exhaust end of the vacuum pump, and the other end of the serpentine condenser is connected to the water cooling box through the exhaust pipe.

[0013] As a preferred technical solution, the heating stirring mechanism includes a driving assembly, an electric telescopic rod connected to the central inner wall of the top of the vacuum tank through a bearing, a connecting plate fixedly connected to the bottom end of the output shaft of the electric telescopic rod, and a plurality of annularly distributed electric stirring rods fixedly connected to the connecting plate. Through the lifting and rotating movement of the electric stirring rod, the liquid inside the hollow tank can be fully and evenly heated and stirred, which helps to accelerate the escape rate of dissolved gas in water during vacuum degassing, can remove gas from water more quickly, reduce thermal resistance during heat exchange, and improve heat exchange efficiency.

[0014] As a preferred technical solution, the driving assembly includes a support plate welded to the upper outer wall of the vacuum tank, a driving motor fixedly mounted on the top outer wall of the support plate, an active bevel gear fixedly mounted on the output shaft of the driving motor, and a driven bevel gear fixedly mounted on the electric telescopic rod.

[0015] As a preferred technical solution, the electric telescopic rod and all the electric heating stirring rods are connected to external electric slip rings through wires, ensuring that the electrical appliances in a rotating state are not prone to wire entanglement and cannot work normally, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0016] As a preferred technical solution, the cooling rod and the water temperature sensor are both electrically connected to the controller.

[0017] The beneficial effects of the utility model are:

[0018] 1. It is equipped with a condensation cooling mechanism, which can fully cool the heated high-temperature gas during the vacuum degassing process, which is beneficial to ensure the performance and operation stability of the vacuum pump, thereby ensuring the effect of vacuum degassing;

[0019] 2. A heating stirring mechanism is provided. Through the lifting and rotating movement of the electric heating stirring rod, the liquid inside the hollow tank can be fully and evenly heated and stirred, which helps to accelerate the escape rate of dissolved gas in water during vacuum degassing, remove gas from water more quickly, reduce thermal resistance in the heat exchange process, and improve heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a vacuum degassing constant-pressure water replenishing device with high heat exchange efficiency proposed by the utility model;

[0021] Figure 2 It is a vertical cross-sectional three-dimensional structural schematic diagram of a water cooling box in a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency proposed by the utility model after the water temperature sensor and the cooling rod are pulled out;

[0023] Figure 4 The utility model discloses a heating stirring mechanism in a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency.

[0024] In the figure: 1. Base; 2. Vacuum tank; 3. Water cooling box; 4. Vacuum pump; 5. Serpentine condenser; 6. Refrigeration rod; 7. Water temperature sensor; 8. Controller; 9. Filling pipe; 10. Exhaust pipe; 11. Electric telescopic rod; 12. Connecting plate; 13. Electric stirring rod; 14. Support plate; 15. Driving motor; 16. Active bevel gear; 17. Driven bevel gear. DETAILED DESCRIPTION

[0025] 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 of the embodiments.

[0026] Example 1, reference Figure 1-3 , a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency, comprising a base 1;

[0027] Furthermore, the top outer wall of the base 1 is fixedly connected with a vacuum tank 2, a water cooling box 3 and a vacuum pump 4 in sequence, a filling pipe 9 is provided on the top of the water cooling box 3, a sealing cover is screwed on the filling pipe 9, and a condensation cooling mechanism is provided on the water cooling box 3, and the condensation cooling mechanism includes:

[0028] The serpentine condenser 5 is fixed in the water cooling box 3, and both ends of the serpentine condenser 5 are sealed at the connection points with both sides of the water cooling box 3. One end of the serpentine condenser 5 is connected to the exhaust end of the vacuum pump 4, and the other end of the serpentine condenser 5 is connected to the water cooling box 3 through the exhaust pipe 10;

[0029] The cooling rod 6 and the water temperature sensor 7 are fixedly mounted on the top of the water cooling box 3 in sequence;

[0030] A controller 8, the controller 8 is fixedly connected to the front outer wall of the water cooling box 3, and the cooling rod 6 and the water temperature sensor 7 are both electrically connected to the controller 8;

[0031] In the specific implementation of this embodiment: during the vacuum degassing process, the degassed gas will flow out from the exhaust pipe 10 and enter the vacuum pump 4 after condensation through the serpentine condenser 5, and during the continuous condensation process, the temperature of the coolant in the water cooling box 3 will increase. At this time, the water temperature sensor 7 will detect the temperature of the coolant in real time. When the cooling temperature of the coolant is insufficient, the water temperature sensor 7 will transmit a signal to the controller 8, and the controller 8 will control the operation of the refrigeration rod 6 to reduce the temperature of the coolant in the water cooling box 3 to the optimal cooling temperature. In this way, the heated high-temperature gas can be fully cooled during the vacuum degassing process, which is beneficial to ensuring the performance and operation stability of the vacuum pump 4, thereby ensuring the effect of vacuum degassing.

[0032] Example 2, reference Figure 1 and Figure 4 This embodiment is optimized on the basis of embodiment 1, specifically: a vacuum degassing constant pressure water replenishing device with high heat exchange efficiency, further comprising a heating stirring mechanism, the heating stirring mechanism comprising:

[0033] The electric telescopic rod 11 and the connecting plate 12 are connected through the inner wall of the top center of the vacuum tank 2 through a bearing. The connecting plate 12 is fixedly connected to the bottom end of the output shaft of the electric telescopic rod 11. A plurality of annularly distributed electric heating stirring rods 13 are fixedly connected to the connecting plate 12.

[0034] Driving assembly: It includes a support plate 14 welded to the upper outer wall of the vacuum tank 2, a driving motor 15 fixedly mounted on the top outer wall of the support plate 14, a driving bevel gear 16 fixedly sleeved on the output shaft of the driving motor 15, and a driven bevel gear 17 fixedly sleeved on the electric telescopic rod 11, and the driving bevel gear 16 and the driven bevel gear 17 are meshed with each other;

[0035] Furthermore, the electric telescopic rod 11 and all the electric heating stirring rods 13 are connected to external electric slip rings through wires;

[0036] In the specific implementation of this embodiment: the driving motor 15 drives the active bevel gear 16 to rotate, and then the driven bevel gear 17 meshing with the active bevel gear 16 controls all the electric heating stirring rods 13 on the connecting plate 12 at the bottom end of the electric telescopic rod 11 to rotate, and the rotating electric heating stirring rods 13 can also be controlled to move up and down through the telescopic end of the electric telescopic rod 11, so that the liquid inside the hollow tank 2 can be fully and evenly heated and stirred, which helps to accelerate the escape rate of dissolved gas in water during vacuum degassing, can remove gas from water more quickly, reduce thermal resistance in the heat exchange process, and improve heat exchange efficiency.

[0037] Working principle: First, inject the required coolant into the water cooling box 3 from the filling pipe 9 and cover the sealing cover. At this time, the vacuum pump 4 can be started for vacuum degassing;

[0038] Secondly, during the vacuum degassing process, the driving bevel gear 16 is driven to rotate by the driving motor 15, and then the driven bevel gear 17 meshing with the driving bevel gear 16 controls all the electric heating stirring rods 13 on the connecting plate 12 at the bottom end of the electric telescopic rod 11 to rotate, and the rotating electric heating stirring rods 13 can also be controlled to move up and down through the telescopic end of the electric telescopic rod 11, so that the liquid inside the hollow tank 2 can be fully and evenly heated and stirred, which helps to accelerate the escape rate of dissolved gas in water during vacuum degassing, can more quickly remove gas from water, reduce thermal resistance in the heat exchange process, and improve heat exchange efficiency;

[0039] Finally, during the vacuum degassing process, the degassed gas will flow out from the exhaust pipe 10 and enter the vacuum pump 4 after condensation through the serpentine condenser 5. During the continuous condensation process, the temperature of the coolant in the water cooling box 3 will increase. At this time, the water temperature sensor 7 will detect the temperature of the coolant in real time. When the cooling temperature of the coolant is insufficient, the water temperature sensor 7 will transmit a signal to the controller 8. The controller 8 will control the operation of the refrigeration rod 6 to reduce the temperature of the coolant in the water cooling box 3 to the optimal cooling temperature. In this way, the heated high-temperature gas can be fully cooled during the vacuum degassing process, which is beneficial to ensuring the performance and operation stability of the vacuum pump 4, thereby ensuring the effect of vacuum degassing.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum degassing and constant pressure water replenishing device with high heat exchange efficiency, comprising a base (1), characterized in that: The top outer wall of the base (1) is fixedly connected in sequence with a vacuum tank (2), a water cooling box (3) and a vacuum pump (4); the water cooling box (3) is provided with a condensation and cooling mechanism, and the vacuum tank (2) is provided with a heating stirring mechanism; The condensation and cooling mechanism comprises a serpentine condenser tube (5) penetrating and fixed in a water cooling box (3), a cooling rod (6) and a water temperature sensor (7) fixedly embedded in the top of the water cooling box (3) in sequence, and a controller (8) fixedly connected to the front outer wall of the water cooling box (3).

2. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 1, characterized in that: A filling pipe (9) is provided on the top of the water cooling box (3), and a sealing cover is screwed onto the filling pipe (9).

3. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 1, characterized in that: The two ends of the serpentine condenser (5) are sealed at the connections with the two sides of the water cooling box (3); one end of the serpentine condenser (5) is connected to the exhaust end of the vacuum pump (4), and the other end of the serpentine condenser (5) is connected to the water cooling box (3) through the exhaust pipe (10).

4. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 1, characterized in that: The heating stirring mechanism comprises a driving assembly, an electric telescopic rod (11) connected to the central inner wall of the top of the vacuum tank (2) through a bearing, a connecting plate (12) fixedly connected to the bottom end of the output shaft of the electric telescopic rod (11), and a plurality of annularly distributed electric heating stirring rods (13) fixedly connected to the connecting plate (12).

5. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 4, characterized in that: The driving assembly comprises a support plate (14) welded to the upper outer wall of the vacuum tank (2), a driving motor (15) fixedly mounted on the top outer wall of the support plate (14), an active bevel gear (16) fixedly sleeved on the output shaft of the driving motor (15), and a driven bevel gear (17) fixedly sleeved on the electric telescopic rod (11).

6. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 4, characterized in that: The electric telescopic rod (11) and all the electric heating stirring rods (13) are connected to an external electric slip ring via a wire, and the driving bevel gear (16) and the driven bevel gear (17) are meshed with each other.

7. A vacuum degassing constant pressure water replenishing device with high heat exchange efficiency according to claim 1, characterized in that: The cooling rod (6) and the water temperature sensor (7) are both electrically connected to the controller (8).

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