Anti-freezing device of cooling-water machine

Abstract

The utility model relates to the field of cooling-water machines, in particular to a cooling-water machine anti-freezing device which comprises a cooling-water machine body, one side of the cooling-water machine body is connected with a connecting pipe arranged in a connecting box through a main circulating pipe, the other end of the connecting pipe is connected with the cooling-water machine body, and a plurality of annular grooves are formed in the inner wall of the connecting box. A curved heat pipe is installed on the annular groove and connected with the water pump unit and the electric heating water tank through a first circulating pipe. According to the water chiller, the connecting pipe and the main circulating pipe are in circulating connection with the water chiller body, hot water is conveyed into the curved heat pipe in the connecting box through the electric heating water tank and the water pump unit to generate heat and exchanges heat with cold air in the box body, and meanwhile the hot water enters the main circulating pipe under circulating conveying of the circulating pipe and the water pump unit; the inside of the pipeline is heated and frozen through hot water, the possibility that the pipeline is frozen is effectively avoided, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water chillers, in particular to an antifreeze device for water chillers. Background Art

[0002] A chiller, also known as a water cooler or chiller equipment, is a cooling water device that can provide constant temperature, constant flow and constant pressure. Its working principle is mainly based on vapor compression refrigeration, that is, refrigeration is carried out by using the principle that liquid refrigerant absorbs heat when vaporizing and releases heat when steam condenses.

[0003] At present, when a traditional chiller is not in use, the temperature is too low, which will cause water to freeze and cause the internal pipes to rupture, resulting in economic losses. If the chiller is operated in a low temperature environment, this situation will become more serious. Therefore, it is necessary to set up an antifreeze device. The Chinese patent document with authorization announcement number CN219624319U, "An antifreeze device for a chiller", heats the water to boil in a hot water tank, and then pumps the hot water into a heat pipe through a water pump. The heat pipe heats the air inside the antifreeze bin and blows the warm air on the upper layer of the antifreeze bin to the surroundings of the chiller body through the rotation of the blades, thereby effectively avoiding the situation in which the water pipes in the chiller body are damaged due to uneven heating.

[0004] However, the above device still has some defects when used in practice:

[0005] In the key parts of the chiller, the circulating pipes are not heated evenly and completely, the antifreeze efficiency through overall heating is low, and unnecessary components will be interfered with. Therefore, the pipes may still freeze or rupture. There is an urgent need for an antifreeze device for the chiller. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes an antifreeze device for a chiller.

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

[0008] A chiller antifreeze device comprises a chiller body, one side of the chiller body is connected to a connecting pipe arranged inside a connecting box through a main circulation pipe, the other end of the connecting pipe is connected to the chiller body, and a plurality of annular grooves are opened on the inner wall of the connecting box, curved heat pipes are installed on the annular grooves, and the curved heat pipes are connected to a water pump unit and an electric heating water tank through a circulation pipe.

[0009] In addition, a preferred structure is that an L-shaped cavity is provided inside the connection box, a plurality of annular grooves are provided inside the cavity of the horizontal section, and a curved heat pipe is embedded and installed in the middle of the annular groove.

[0010] In addition, a preferred structure is that the outlet end and the inlet end of the curved heat pipe are both connected to a circulation pipe 2, and the circulation pipe 2 is respectively connected to a water pump unit and an electric heating water tank.

[0011] In addition, a preferred structure is that one side of the electric heating water tank is connected to a water pump unit.

[0012] In addition, a preferred structure is that a U-shaped connecting pipe is provided inside the connecting box, and both sides of the connecting pipe are cyclically connected to the chiller body through the main circulation pipe.

[0013] In addition, a preferred structure is that solenoid valves are provided on both the bottom side and the top side of the connecting pipe, and one end of the solenoid valve is connected to the circulation pipe.

[0014] In addition, a preferred structure is that a plurality of conical guide cylinders are provided on one side of the interior of the connection box, a connecting pipe is provided on the inner side of the conical guide cylinder, a plurality of notches are opened on the outer wall of the conical guide cylinder, and a groove is provided on the inner wall.

[0015] The beneficial effects of the utility model are:

[0016] In the utility model, the connecting pipe and the main circulation pipe are connected to the chiller body for circulation, and the hot water is transported to the curved heat pipe in the connecting box through the electric heating water tank and the water pump unit to generate heat, and heat exchange is carried out with the cold air in the box. At the same time, the hot water enters the main circulation under the circulation transportation of the circulation pipe and the water pump unit, and the inside of the pipe is heated and anti-freezing is prevented by the hot water, which effectively avoids the possibility of the pipe freezing and prolongs its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the external structure of a water chiller antifreeze device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a connection box of a chiller antifreeze device proposed by the utility model;

[0019] Figure 3 A schematic diagram of the structure of a chiller antifreeze device proposed by the utility model;

[0020] Figure 4 A schematic diagram of a curved heat pipe structure of a chiller antifreeze device proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a conical guide cylinder of a chiller antifreeze device proposed by the utility model;

[0022] Figure 6 The utility model provides a schematic diagram of the structure of a circulation pipe of a chiller antifreeze device.

[0023] In the figure: 1 chiller body, 101 main circulation pipe, 2 connection box, 21 annular groove, 22 curved heat pipe, 3 water pump unit, 4 electric heating water tank, 5 circulation pipe 1, 6 insulation film, 7 circulation pipe 2, 8 connection pipe, 9 conical guide cylinder, 91 groove, 10 solenoid valve. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-6 A chiller antifreeze device includes a chiller body 1, one side of the chiller body 1 is connected to a connecting pipe 8 arranged inside a connecting box 2 through a main circulation pipe 101, the other end of the connecting pipe 8 is connected to the chiller body 1, and a plurality of annular grooves 21 are opened on the inner wall of the connecting box 2, a curved heat pipe 22 is installed on the annular groove 21, and the curved heat pipe 22 is connected to a water pump unit 3 and an electric heating water tank 4 through a circulation pipe 5.

[0026] Furthermore, an L-shaped cavity is provided inside the connection box 2, and a plurality of annular grooves 21 are provided inside the horizontal section of the cavity, and a curved heat pipe 22 is embedded and installed in the middle of the annular groove 21. The curved pipe 22 can generate a certain amount of heat under the action of hot water circulation, and the heat will be stored in the box and preheat the pipe.

[0027] Furthermore, the outlet and inlet ends of the curved heat pipe 22 are both connected to a circulation pipe 2 7 , and the circulation pipe 2 7 is connected to the water pump unit 3 and the electric heating water tank 4 respectively.

[0028] Further, one side of the electric heating water tank 4 is connected to the water pump unit 3. The connection between the water pump unit 3 and the electric heating water tank 4 ensures the circulation supply of hot water.

[0029] Furthermore, a U-shaped connecting pipe 8 is provided inside the connecting box 2 , and both sides of the connecting pipe 8 are respectively connected to the chiller body 1 in a circulation manner through the main circulation pipe 101 .

[0030] Furthermore, solenoid valves 10 are provided on the bottom side and the top side of the connecting pipe 8, and one end of the solenoid valves 10 is connected to the circulation pipe 1 5.

[0031] Furthermore, a plurality of conical guide cylinders 9 are provided on one side of the inner part of the connection box 2 , a connecting pipe 8 is provided on the inner side of the conical guide cylinder 9 , a plurality of notches are opened on the outer wall of the conical guide cylinder 9 , and a groove 91 is provided on the inner wall.

[0032] In this embodiment, the hot water source is connected to the electric heating water tank 4 for supply, and under the pumping action of the water pump unit 3, the hot water enters the curved heat pipe 22 through the circulation pipe 27. The curved heat pipe 22 is embedded in the annular groove 21 and is arranged below the connecting pipe 8. In the process of continuous heating of the curved heat pipe 22, heat exchange is carried out with the cold air in the connecting box 2 and the cold air around the connecting pipe 8, and the temperature in the box is initially increased to achieve a preheating effect. At the same time, the hot air will slowly fill the bottom cavity in the box under the action of the conical guide cylinder 9, and then slowly rise to the top cavity.

[0033] At the same time, the hot water in the curved heat pipe 22 will be transported to the electric heating water tank 4 for circulation under the circulation pumping action of the water pump unit 3. At the same time, the water pump unit 3 pumps the hot water in the water tank to the connecting pipe 8 again through the circulation pipe 15. At this time, the solenoid valve 10 arranged at the top of the connecting pipe 8 is opened under the control of the control device, and hot water is introduced into the pipe. At this time, the connecting pipe 8 has been preheated. The hot water can further increase the pipe body temperature of the connecting pipe 8 to prevent it from freezing, cracking, etc. under low temperature conditions. Then the hot water will enter the circulation pipe 15 at the bottom through another solenoid valve 10 arranged at the bottom of the connecting pipe 8, and enter the electric heating water tank 4 to complete the circulation.

[0034] In the actual application process, the heat preservation film 6 arranged on the annular groove 21 can improve the heat preservation performance in the box body and increase its heating efficiency.

[0035] In the actual application process, the solenoid valve 10 is in a closed state in a natural state to ensure the normal operation of the chiller body 1.

[0036] Among them, in actual application, when implementing the antifreeze operation, the chiller body 1 should be in a shutdown state, and before the hot water is delivered to the connecting pipe 8, the original working liquid in the connecting pipe 8 should be pumped out through the pump body in advance.

[0037] In the utility model, the main circulation pipe 101 is connected to the chiller body through the connecting pipe 8, and the hot water is transported to the curved heat pipe 22 in the connecting box 2 through the electric heating water tank 4 and the water pump unit 3 to generate heat and exchange heat with the cold air in the box. At the same time, the hot water enters the main circulation under the circulation transportation of the circulation pipe and the water pump unit 3. The hot water is used to heat the inside of the pipe to prevent freezing, which effectively avoids the possibility of pipe freezing and extends its service life.

[0038] 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 chiller antifreeze device, comprising a chiller body (1), characterized in that: One side of the chiller body (1) is connected to a connecting pipe (8) provided inside the connecting box (2) via a main circulation pipe (101); the other end of the connecting pipe (8) is connected to the chiller body (1); and a plurality of annular grooves (21) are provided on the inner wall of the connecting box (2); curved heat pipes (22) are installed on the annular grooves (21); and the curved heat pipes (22) are connected to the water pump unit (3) and the electric heating water tank (4) via a circulation pipe 1 (5).

2. The antifreeze device for a chiller according to claim 1, characterized in that: An L-shaped cavity is arranged inside the connection box (2), a plurality of annular grooves (21) are provided inside the horizontal section of the cavity, and a curved heat pipe (22) is embedded and installed in the middle of the annular groove (21).

3. The antifreeze device for a chiller according to claim 2, characterized in that: The outlet and inlet ends of the curved heat pipe (22) are both connected to a second circulation pipe (7), and the second circulation pipe (7) is respectively connected to a water pump unit (3) and an electric heating water tank (4).

4. The antifreeze device for a chiller according to claim 1, characterized in that: One side of the electric heating water tank (4) is connected to the water pump unit (3).

5. The antifreeze device for a chiller according to claim 2, characterized in that: A U-shaped connecting pipe (8) is arranged inside the connecting box (2), and both sides of the connecting pipe (8) are cyclically connected to the chiller body (1) through main circulation pipes (101).

6. The antifreeze device for a chiller according to claim 5, characterized in that: Solenoid valves (10) are provided on the bottom side and the top side of the connecting pipe (8), and one end of the solenoid valves (10) is connected to the circulation pipe 1 (5).

7. The antifreeze device for a chiller according to claim 2, characterized in that: A plurality of conical guide cylinders (9) are arranged on one side of the interior of the connection box (2), a connecting pipe (8) is arranged on the inner side of the conical guide cylinder (9), a plurality of notches are opened on the outer wall of the conical guide cylinder (9), and a groove (91) is arranged on the inner wall.

Images