Water-cooled screw cooling-water machine

Abstract

The utility model discloses a water-cooled screw cooling-water machine which comprises an installation support, a moving assembly is arranged at the bottom of the installation support, a shell tube evaporator is installed on the inner wall of the installation support, and a filter is installed on the outer wall of the installation support. One end of the electric control air cylinder drives the universal wheel to move, one end of the universal wheel is in contact with the ground, the electric control air cylinder jacks up the device, then pushing force is only needed to be applied, the moving assembly drives the device to move, and otherwise, when the device is not used, the electric control air cylinder drives the universal wheel to rotate reversely. The universal wheels are moved back to the inner cavity of the fixed shell to be stored, and the practicability of the device is better; the temperature of the screw compressor is conducted through the heat dissipation shell, then the heat conduction liquid takes away heat of the heat dissipation shell, meanwhile, the heat dissipation fan operates to cool the heat dissipation grating, and therefore the heat dissipation effect of the screw compressor is better, and the screw compressor is not prone to being damaged due to overheating.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooled screw chillers, in particular to a water-cooled screw chiller. Background Art

[0002] A water-cooled screw chiller is a type of chilled water equipment with a screw compressor as its core. It is widely used in many fields, including industrial production and central air conditioning systems. Its working principle: The working principle of a water-cooled screw chiller involves the circulation of refrigerant between various components. The compressor inhales low-temperature and low-pressure refrigerant gas, which becomes high-temperature and high-pressure gas after compression. Subsequently, these high-temperature and high-pressure refrigerant gases enter the condenser, exchange heat with the cooling water, release heat and condense into high-pressure liquid. Then, after throttling and reducing pressure through the expansion valve, the refrigerant enters the evaporator to absorb the heat of the chilled water, vaporize it, and thus reduce the temperature of the water. This cycle is repeated continuously to achieve a continuous cooling effect.

[0003] However, the compressors in existing water-cooled screw chillers sometimes work in high temperature and high humidity environments, and the gas-liquid ratio at the compressor outlet of the single refrigerant liquid pool is unbalanced, resulting in increased exhaust pressure, increased compressor load, and finally overheating and damage to the compressor. In addition, due to the heavy weight of existing water-cooled screw chillers, their installation and subsequent maintenance or replacement require professional equipment for transportation, which increases the complexity and cost of operation. At the same time, the replacement cycle of the equipment is long. Although rollers are set at the bottom for easy movement, long-term static operation will cause the contact part of the roller with the ground to be deformed and damaged due to continuous pressure, which ultimately makes it difficult to push manually. Utility Model Content

[0004] The utility model provides a water-cooled screw chiller to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water-cooled screw chiller, comprising a mounting bracket, a moving assembly is arranged at the bottom of the mounting bracket, a shell and tube evaporator is mounted on the inner wall of the mounting bracket, a filter is mounted on the outer wall of the mounting bracket, a screw compressor is mounted on the outer wall of the shell and tube evaporator, a water cooling assembly is mounted on the outer wall of the screw compressor, a pressure controller is mounted on the outer wall of the mounting bracket, and a pressure gauge is mounted on the outer wall of the pressure controller;

[0007] The mobile component includes a mounting base, which is mounted on the bottom of the mounting bracket. A fixed shell is mounted on the outer wall of the mounting base. An electric control cylinder is mounted at the port of the fixed shell. A universal wheel is mounted at one end of the electric control cylinder, and the universal wheel is located in the inner cavity of the fixed shell.

[0008] As a preferred solution of the utility model, the water cooling assembly includes a fixed bracket and a heat dissipation shell, the fixed bracket is installed on the outer wall of the mounting bracket, a heat dissipation grille is installed on the outer wall of the fixed bracket, and a heat dissipation fan is installed on one side of the heat dissipation grille and on the outer wall of the fixed bracket.

[0009] As a preferred solution of the utility model, a liquid inlet pipe and a liquid outlet pipe are sequentially arranged on the outer wall of the heat dissipation grille, an electric-controlled liquid pump is installed at one end of the liquid inlet pipe, a heat dissipation shell is installed at one end of the electric-controlled liquid pump through a conduit, a liquid outlet pipe is connected to the outer wall of the heat dissipation shell, and the heat dissipation shell is sleeved on the outer wall of the screw compressor.

[0010] As a preferred solution of the utility model, the shell and tube evaporator, filter and screw compressor are connected through a conduit, and the pressure controller is respectively connected to a pressure gauge, an electronically controlled cylinder, a cooling fan and an electronically controlled liquid pump through wires, and the connection method is electrical connection.

[0011] As a preferred solution of the utility model, the shell and tube evaporator is located on one side of the screw compressor, the fixed shell is provided in multiple groups and is respectively located at the corners of the mounting base, the fixed shell and the mounting base are connected structures, and the fixed shell is located on one side of the mounting bracket.

[0012] As a preferred solution of the utility model, the electronically controlled cylinders are provided in multiple groups and are respectively located on the outer wall of the fixed shell, the universal wheels are located directly below the mounting bracket, and the fixed brackets are provided in two groups and are respectively located on the outer wall of the mounting bracket.

[0013] As a preferred solution of the utility model, the heat dissipation grille is located on one side of the mounting bracket, two groups of heat dissipation fans are provided and are respectively located on the outer wall of the fixing bracket, and the heat dissipation fans are located on one side of the heat dissipation grille.

[0014] As a preferred solution of the utility model, the liquid outlet pipe is located on one side of the liquid inlet pipe, the inner cavity of the heat dissipation shell is provided with heat-conducting liquid, the heat dissipation grille and the heat dissipation shell are both hollow structures, and the heat dissipation shell is located directly above the shell and tube evaporator.

[0015] The utility model controls the operation of the electric control cylinder by arranging a pressure controller in the water-cooled screw chiller. One end of the electric control cylinder drives the universal wheel to move. One end of the universal wheel contacts the ground. Then, under the reverse action, the electric control cylinder lifts the device. Then, only thrust needs to be applied to make the moving component drive the device to move. Conversely, when not in use, the electric control cylinder drives the universal wheel to operate in the reverse direction, so that the universal wheel moves back to the inner cavity of the fixed shell for storage, and the practicality of the device is better.

[0016] The heat-conducting liquid in the inner cavity of the liquid inlet pipe is pumped out and made to flow by an electrically controlled liquid pump, so that the heat-conducting liquid forms a loop through the liquid inlet pipe and the liquid outlet pipe. The heat dissipation shell conducts the temperature of the screw compressor, and then the heat-conducting liquid takes away the heat of the heat dissipation shell. At the same time, the heat dissipation fan runs to cool the heat dissipation grille, so that the heat dissipation effect of the screw compressor is better and it is not easy to be damaged by overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the mounting base structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the water cooling assembly structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the mobile component of the utility model.

[0022] In the figure: 1. mounting bracket; 2. moving component; 201. mounting base; 202. fixed shell; 203. electronically controlled cylinder; 204. universal wheel; 3. shell and tube evaporator; 4. filter; 5. screw compressor; 6. water cooling component; 601. fixed bracket; 602. heat dissipation shell; 603. heat dissipation grille; 604. heat dissipation fan; 605. liquid inlet pipe; 606. liquid outlet pipe; 607. electronically controlled liquid pump; 7. pressure controller; 8. pressure gauge. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example: See Figure 1-5 A water-cooled screw chiller shown in the figure includes a mounting bracket 1, a moving component 2 is arranged at the bottom of the mounting bracket 1, a shell and tube evaporator 3 is installed on the inner wall of the mounting bracket 1, a filter 4 is installed on the outer wall of the mounting bracket 1, a screw compressor 5 is installed on the outer wall of the shell and tube evaporator 3, a water cooling component 6 is installed on the outer wall of the screw compressor 5, a pressure controller 7 is installed on the outer wall of the mounting bracket 1, and a pressure gauge 8 is installed on the outer wall of the pressure controller 7.

[0025] In this embodiment, specific reference Figure 1 , Figure 3 and Figure 5 The mobile component 2 includes a mounting base 201, which is mounted at the bottom of the mounting bracket 1. A fixed shell 202 is mounted on the outer wall of the mounting base 201. The fixed shell 202 is provided with multiple groups and are respectively located at the corners of the mounting base 201. The fixed shell 202 and the mounting base 201 are connected structures. The fixed shell 202 is located on one side of the mounting bracket 1. An electric-controlled cylinder 203 is installed at the port of the fixed shell 202. The electric-controlled cylinder 203 is provided with multiple groups and are respectively located on the outer wall of the fixed shell 202. A universal wheel 204 is mounted at one end of the electric-controlled cylinder 203. The universal wheel 204 is located directly below the mounting bracket 1, and the universal wheel 204 is located in the inner cavity of the fixed shell 202.

[0026] In this embodiment, specific reference Figure 1 , Figure 2 and Figure 4 The water cooling assembly 6 includes a fixed bracket 601 and a heat dissipation shell 602. The fixed bracket 601 is installed on the outer wall of the mounting bracket 1. The fixed bracket 601 is provided with two groups and are respectively located on the outer wall of the mounting bracket 1. A heat dissipation grille 603 is installed on the outer wall of the fixed bracket 601. The heat dissipation grille 603 is located on one side of the mounting bracket 1. A heat dissipation fan 604 is installed on one side of the heat dissipation grille 603 and located on the outer wall of the fixed bracket 601. The heat dissipation fan 604 is provided with two groups and is respectively located on the outer wall of the fixed bracket 601. The cooling fan 604 is located on one side of the cooling grille 603, and a liquid inlet pipe 605 and a liquid outlet pipe 606 are sequentially arranged on the outer wall of the cooling grille 603. The liquid outlet pipe 606 is located on one side of the liquid inlet pipe 605. An electrically controlled liquid pump 607 is installed at one end of the liquid inlet pipe 605. A cooling shell 602 is installed at one end of the electrically controlled liquid pump 607 through a conduit. A heat-conducting liquid is arranged in the inner cavity of the cooling shell 602. The liquid outlet pipe 606 is connected to the outer wall of the cooling shell 602, and the cooling shell 602 is sleeved on the outer wall of the screw compressor 5.

[0027] Among them, the shell and tube evaporator 3, the filter 4 and the screw compressor 5 are connected through a conduit, and the pressure controller 7 is respectively connected to the pressure gauge 8, the electric control cylinder 203, the cooling fan 604, and the electric control liquid pump 607 through wires, and the connection method is that under the action of electrical connection, the device is energized, the shell and tube evaporator 3 is located on one side of the screw compressor 5, the cooling grille 603 and the cooling shell 602 are both hollow structures, and the cooling shell 602 is located directly above the shell and tube evaporator 3. When the shell and tube evaporator 3 is running, the ambient temperature will also increase, and its cooling shell 602 will also absorb the heat generated by the shell and tube evaporator 3, and then cool it down at the cooling grille 603 through the cooling fan 604, which is more practical.

[0028] When the water-cooled screw chiller of this scheme is working, by turning on the switch of the pressure controller 7, the mounting base 201 is mounted on the bottom of the mounting bracket 1, a fixed shell 202 is mounted on the outer wall of the mounting base 201, an electric control cylinder 203 is mounted at the port of the fixed shell 202, one end of the electric control cylinder 203 is mounted with a universal wheel 204, and the universal wheel 204 is located in the inner cavity of the fixed shell 202. Under the action of the pressure controller 7, the electric control cylinder 203 is controlled to operate, and one end of the electric control cylinder 203 drives the universal wheel 204 to move, so that the universal wheel 204 passes through the fixed shell 202. and the inner cavity of the mounting base 201, one end of the universal wheel 204 contacts the ground, and then under the reverse action, the electric cylinder 203 lifts the device, and then only needs to apply thrust to make the moving component 2 drive the device to move. On the contrary, when not in use, the electric cylinder 203 drives the universal wheel 204 to operate in the reverse direction, so that the universal wheel 204 moves back to the inner cavity of the fixed shell 202 for storage, and the device is more practical, thereby solving the problem that although the roller at the bottom is easy to move, the long-term static state will cause the part of the roller in contact with the ground to be deformed and damaged due to continuous pressure, which ultimately makes it difficult to push it manually.

[0029] The electric liquid pump 607 is controlled by the pressure controller 7 to operate. A heat-conducting liquid is arranged in the inner cavity of the heat dissipation shell 602. The heat dissipation grille 603 and the heat dissipation shell 602 are both hollow structures. The heat dissipation shell 602 is located directly above the shell and tube evaporator 3. Under the action of the electric liquid pump 607, the heat-conducting liquid in the inner cavity of the liquid inlet pipe 605 is extracted and flowed, so that the heat-conducting liquid forms a loop through the liquid inlet pipe 605 and the liquid outlet pipe 606. The heat dissipation shell 602 conducts the temperature of the screw compressor 5, and then the heat-conducting liquid takes away the heat of the heat dissipation shell 602. At the same time, the heat dissipation fan 604 operates to cool the heat dissipation grille 603, so that the heat dissipation effect of the screw compressor 5 is better and it is not easy to be damaged by overheating, thereby solving the problem of the existing water-cooled screw chiller, in which the compressor sometimes works in a high temperature and high humidity environment, and the gas-liquid ratio of the compressor outlet of the single refrigerant liquid pool is unbalanced, resulting in an increase in exhaust pressure, an increase in compressor load, and finally causing overheating and damage to the compressor.

[0030] 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. A water-cooled screw chiller, comprising a mounting bracket (1), characterized in that: A moving component (2) is arranged at the bottom of the mounting bracket (1), a shell and tube evaporator (3) is mounted on the inner wall of the mounting bracket (1), a filter (4) is mounted on the outer wall of the mounting bracket (1), a screw compressor (5) is mounted on the outer wall of the shell and tube evaporator (3), a water cooling component (6) is mounted on the outer wall of the screw compressor (5), a pressure controller (7) is mounted on the outer wall of the mounting bracket (1), and a pressure gauge (8) is mounted on the outer wall of the pressure controller (7); The mobile assembly (2) comprises a mounting base (201), the mounting base (201) being mounted on the bottom of the mounting bracket (1), a fixed housing (202) being mounted on the outer wall of the mounting base (201), an electric control cylinder (203) being mounted at a port of the fixed housing (202), a universal wheel (204) being mounted at one end of the electric control cylinder (203), and the universal wheel (204) being located in the inner cavity of the fixed housing (202).

2. The water-cooled screw chiller according to claim 1, characterized in that: The water cooling assembly (6) comprises a fixing bracket (601) and a heat dissipation shell (602); the fixing bracket (601) is mounted on the outer wall of the mounting bracket (1); a heat dissipation grille (603) is mounted on the outer wall of the fixing bracket (601); and a heat dissipation fan (604) is mounted on one side of the heat dissipation grille (603) and located on the outer wall of the fixing bracket (601).

3. The water-cooled screw chiller according to claim 2, characterized in that: A liquid inlet pipe (605) and a liquid outlet pipe (606) are sequentially arranged on the outer wall of the heat dissipation grille (603); an electrically controlled liquid pump (607) is installed at one end of the liquid inlet pipe (605); a heat dissipation housing (602) is installed at one end of the electrically controlled liquid pump (607) through a conduit; the liquid outlet pipe (606) is connected to the outer wall of the heat dissipation housing (602); and the heat dissipation housing (602) is sleeved on the outer wall of the screw compressor (5).

4. The water-cooled screw chiller according to claim 3, characterized in that: The shell and tube evaporator (3), the filter (4) and the screw compressor (5) are connected via a conduit, and the pressure controller (7) is respectively connected to a pressure gauge (8), an electric control cylinder (203), a cooling fan (604) and an electric control liquid pump (607) via wires, and the connection method is electrical connection.

5. The water-cooled screw chiller according to claim 1, characterized in that: The shell and tube evaporator (3) is located on one side of the screw compressor (5); a plurality of fixed shells (202) are provided and are respectively located at the corners of the mounting base (201); the fixed shells (202) and the mounting base (201) are in a connected structure; and the fixed shells (202) are located on one side of the mounting bracket (1).

6. The water-cooled screw chiller according to claim 2, characterized in that: The electric control cylinders (203) are provided in multiple groups and are respectively located on the outer wall of the fixed housing (202); the universal wheels (204) are located directly below the mounting bracket (1); and the fixed brackets (601) are provided in two groups and are respectively located on the outer wall of the mounting bracket (1).

7. The water-cooled screw chiller according to claim 3, characterized in that: The heat dissipation grille (603) is located on one side of the mounting bracket (1), two groups of heat dissipation fans (604) are provided and are respectively located on the outer wall of the fixing bracket (601), and the heat dissipation fans (604) are located on one side of the heat dissipation grille (603).

8. The water-cooled screw chiller according to claim 3, characterized in that: The liquid outlet pipe (606) is located on one side of the liquid inlet pipe (605); a heat-conducting liquid is provided in the inner cavity of the heat dissipation shell (602); the heat dissipation grille (603) and the heat dissipation shell (602) are both hollow structures; and the heat dissipation shell (602) is located directly above the shell and tube evaporator (3).

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