Secondary cooling energy-saving cooling cabinet for UV lamp of printing machine

Abstract

The utility model provides a secondary cooling energy-saving cooling cabinet for a UV (ultraviolet) lamp of a printing machine, which relates to the technical field of energy conservation, heat dissipation and cooling of the UV lamp of the printing machine, and comprises a compressor refrigeration mechanism, a liquid storage tank mechanism, a circulating cooling liquid mechanism and a control electric box, the compressor refrigeration mechanism comprises a plate type condenser, a refrigeration compressor and a plate type evaporator, an expansion valve inlet in the refrigeration compressor is communicated with an outlet pipeline of the plate type condenser, a cooling liquid device cabinet capable of providing different cooling required temperatures for a UV mercury lamp and an LED UV lamp of the printing machine, an energy-saving cooling cabinet capable of achieving secondary cooling and a cooling liquid device cabinet capable of achieving secondary cooling are achieved. According to the environment-friendly device cooling cabinet, two kinds of cooling liquid with different temperatures can be provided for heat dissipation of a printing UV mercury lamp and an LEDUV lamp, energy-saving cooling according to the required temperature can be achieved, cooling modes of the cooling liquid can be automatically switched through the set temperature, and the environment-friendly device cooling cabinet is energy-saving, consumption-saving and stable in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of energy-saving heat dissipation and cooling of UV lamps for printing presses, and particularly relates to a secondary cooling energy-saving cooling cabinet for UV lamps of a printing press. Background Art

[0002] At present, the cooling of printing UV lamps adopts the methods of compression refrigeration coolers and external water tower cooling. The disadvantages of using compression refrigeration coolers are high energy consumption and high failure rate. The disadvantage of external water tower cooling is that the inside of the tower is easily contaminated and the pipeline is blocked, scale is formed, resulting in poor heat dissipation of the equipment. In high-temperature weather, the water tower cooling cannot reach the low water temperature required for the LED UV lamps of the printing press. The known methods will cause waste of energy and unstable heat dissipation for the UV lamps that need to be cooled, and the heat dissipation effect cannot be achieved, affecting the service life of the UV lamps. It is impossible to achieve secondary high-efficiency energy-saving cooling, impossible to implement a cooling scheme that provides two kinds of temperature cooling liquids according to requirements, and impossible to achieve energy-saving cooling and heat dissipation without starting the compressor when the external temperature is sufficient for the cooling temperature. Therefore, we propose a secondary cooling energy-saving cooling cabinet for UV lamps of a printing press. Content of the Utility Model

[0003] The purpose of the utility model is to provide a running-in device for a power pluggable shaft of a numerically controlled lathe to solve the above deficiencies in the technology.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A secondary cooling energy-saving cooling cabinet for UV lamps of a printing press, comprising a compression refrigeration mechanism, a liquid storage tank mechanism, a circulating coolant mechanism and a control electric box;

[0005] The compression refrigeration mechanism includes a plate condenser, a refrigeration compressor and a plate evaporator. The expansion valve inlet on the refrigeration compressor is connected to the outlet pipeline of the plate condenser, and the expansion valve outlet on the refrigeration compressor is connected to the inlet pipeline of the plate evaporator. The inlet of the plate condenser is connected to the outlet of the refrigeration compressor, and the inlet of the refrigeration compressor is connected to the outlet of the plate evaporator;

[0006] The circulating coolant mechanism includes an external cooling water inlet pipe, a plate heat exchanger, an external cooling water outlet pipe and a circulating coolant pump. The outlet of the plate heat exchanger is connected to the inlet of the plate evaporator, and the outlet of the circulating coolant pump is connected to the inlet of the plate heat exchanger. The outlet of the circulating coolant pump is connected to the inlet of the plate heat exchanger;

[0007] The liquid storage tank mechanism includes a pressure tank, and the pressure tank is connected to the inlet of the circulating coolant pump;

[0008] The liquid outlet inside the plate heat exchanger is connected to the liquid inlet of the plate evaporator through a tee, and at the same time, it is connected to the liquid inlet pipe of the UV mercury lamp. The liquid outlet of the plate evaporator is connected to the liquid inlet pipes of the LED and UV lamps. The liquid outlet of the plate evaporator is connected to the liquid inlet pipes of the LED and UV lamps. The liquid inlet of the circulating coolant pump is connected to the hot liquid return port of the UV mercury lamp and the liquid return pipes of the LED and UV lamps.

[0009] Furthermore, a high-pressure switch is installed on the outlet pipeline of the plate condenser, a low-pressure switch is installed on the outlet pipeline of the plate evaporator, and refrigerant dryers are installed on both pipelines.

[0010] Furthermore, the external cooling water inlet pipe is connected to the water inlet of the plate condenser and also to the external water inlet of the plate heat exchanger. The external cooling water inlet pipe is connected to the outlet pump port of the cooling tower. The external water outlet of the plate heat exchanger is connected to the cooling tower through the external cooling water outlet pipe. A flow control valve is installed on the external water outlet of the plate heat exchanger. The water outlet of the plate condenser is connected to the cooling tower.

[0011] Furthermore, a second temperature sensor is installed at the liquid outlet inside the plate heat exchanger. The liquid inlet inside the plate heat exchanger is connected to the liquid outlet of the circulating coolant pump, and an automatic pressure relief valve is installed on the inlet pipe of the circulating coolant pump. An automatic air vent valve is installed on the outlet pipe of the circulating coolant pump.

[0012] Furthermore, the temperature of a part of the coolant in the liquid inlet pipes of the LED and UV lamps can be set and adjusted. The coolant can be supplied according to the set temperature, and the cooling mode can be automatically switched according to the set temperature, switching between two modes: directly using the cooling of the plate heat exchanger and using the coolant after compression refrigeration. When the set temperature is lower than the liquid outlet temperature inside the plate heat exchanger, it will automatically switch to compression refrigeration cooling, and the coolant will enter the secondary circulation cooling to reach the set temperature.

[0013] Furthermore, the compressor operates automatically according to the set temperature. The compression refrigeration has a function of synchronizing with the room temperature. The coolant switches whether to start compressor cooling according to the set temperature. A flow switch and a first temperature sensor are installed on the outlet pipeline of the liquid outlet of the plate evaporator, and a flow switch is also installed at the water inlet of the plate condenser.

[0014] Furthermore, the pressure tank is a liquid storage tank, and the liquid storage tank has a fully enclosed structure.

[0015] Furthermore, the control electrical box includes a temperature controller and an electrical controller. The temperature sensor on the liquid outlet pipe inside the plate heat exchanger is connected to the temperature controller, and the temperature controller controls the external cooling water flow valve. The second temperature sensor on the liquid outlet of the plate evaporator is connected to the compressor temperature controller.

[0016] Further, the temperature controller can control the external water flow switch to adjust the temperature of the coolant for the UV mercury lamp according to the set temperature, and conduct regulation through the electrical controller.

[0017] Further, a first filter is installed on the external cooling inlet pipe of the plate heat exchanger, a second filter is installed on the liquid outlet pipe of the circulating coolant pump, a pressure gauge is installed on the liquid inlet pipe of the circulating coolant pump, a pressure gauge is installed on the coolant outlet of the plate heat exchanger, and a pressure gauge is installed on the liquid outlet of the plate evaporator.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] In the present utility model, it is possible to provide a coolant device cabinet for the UV mercury lamp and LED UV lamp of a printing machine with different cooling requirement temperatures, an energy-saving cooling cabinet that can achieve secondary cooling, can provide two kinds of coolants with different temperatures to dissipate heat for the printing UV mercury lamp and LED UV lamp respectively, can achieve energy-saving cooling according to the required temperature, can achieve automatic switching of the cooling mode by the set temperature of the coolant, and is an environment-friendly device cooling cabinet with stable heat dissipation effect of energy-saving and consumption reduction. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of an energy-saving cooling cabinet for secondary cooling of the UV lamp of a printing machine provided by the present utility model.

[0021] Legend: 1. External cooling inlet pipe; 2. First filter; 3. Plate heat exchanger; 4. Flow control valve; 5. External cooling outlet pipe; 6. Plate condenser; 7. Low-pressure switch; 8. High-pressure switch; 9. Compressor; 10. Flow switch; 11. Plate evaporator; 12. First temperature sensor; 13. Automatic exhaust valve; 14. Circulating coolant pump; 15. Automatic pressure relief valve; 16. Pressure tank; 17. Inlet pipe for UV mercury lamp; 18. Inlet pipe for LED and UV lamp; 19. Return pipe for UV mercury lamp and LED and UV lamp; 20. Second temperature sensor; 21. Second filter. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] To facilitate the understanding of the present utility model, the following will provide a more comprehensive description of the present utility model with reference to the relevant content. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Embodiment 1

[0027] As Figure 1 shown, the present utility model provides a technical solution: a secondary cooling energy-saving cooling cabinet for a printing press UV lamp, which includes a compression refrigeration mechanism, a liquid storage tank mechanism, a circulating coolant mechanism and a control electric box; the compression refrigeration mechanism includes a plate condenser 6, a refrigeration compressor 9 and a plate evaporator 11. The expansion valve inlet on the refrigeration compressor 9 is connected to the outlet pipeline of the plate condenser 6, and the expansion valve outlet on the refrigeration compressor 9 is connected to the inlet pipeline of the plate evaporator 11. The inlet of the plate condenser 6 is connected to the outlet of the refrigeration compressor 9, and the inlet of the refrigeration compressor 9 is connected to the outlet of the plate evaporator 11; the circulating coolant mechanism includes an external cooling inlet pipe 1, a plate heat exchanger 3, an external cooling outlet pipe 5 and a circulating coolant pump 14. The outlet of the plate heat exchanger 3 is connected to the liquid inlet of the plate evaporator 11, and the outlet of the circulating coolant pump 14 is connected to the liquid inlet of the plate heat exchanger 3; the liquid storage tank mechanism includes a pressure tank 16, and the pressure tank 16 is connected to the liquid inlet of the circulating coolant pump 14; the liquid outlet in the plate heat exchanger 3 is connected to the liquid inlet of the plate evaporator 11 through a tee and is also connected to the UV mercury lamp inlet pipe 17. The liquid outlet of the plate evaporator 11 is connected to the LED and UV lamp inlet pipe 18. The liquid outlet of the plate evaporator 11 is connected to the LED and UV lamp inlet pipe 18, and the liquid inlet of the circulating coolant pump 14 is connected to the hot liquid return port of the UV mercury lamp and the LED and UV lamp return pipe 19.

[0028] Example 2

[0029] As Figure 1 shown, a high-pressure switch 8 is installed on the outlet pipe of the plate condenser 6, and a low-pressure switch 7 is installed on the outlet pipe of the plate evaporator 11. Refrigerant dryers are installed on both pipes.

[0030] The external cooling water inlet pipe 1 is connected to the water inlet of the plate condenser 6 and also to the external water inlet of the plate heat exchanger 3. The external cooling water inlet pipe 1 is connected to the outlet pump of the cooling tower. The external outlet of the plate heat exchanger 3 is connected to the cooling tower through the external cooling water outlet pipe 5. A flow control valve 4 is installed on the external outlet of the plate heat exchanger 3. The outlet of the plate condenser 6 is connected to the cooling tower.

[0031] A second temperature sensor 20 is installed at the internal liquid outlet of the plate heat exchanger 3. The internal liquid inlet of the plate heat exchanger 3 is connected to the liquid outlet of the circulating coolant pump 14. An automatic pressure relief valve 15 is installed on the inlet pipe of the circulating coolant pump 14, and an automatic exhaust valve 13 is installed on the outlet pipe of the circulating coolant pump 14.

[0032] For one-way coolant of the LED and UV lamp inlet pipe 18, the temperature can be set and adjusted. The coolant can be supplied according to the set temperature, and the cooling mode can be automatically switched according to the set temperature, switching to two modes: directly using the plate heat exchanger 3 for cooling and using the coolant cooled by the compressor 9 for cooling. When the set temperature is lower than the temperature at the internal liquid outlet of the plate heat exchanger 3, it automatically switches to compression cooling, and the coolant will enter the secondary circulation cooling to reach the set temperature.

[0033] The compressor 9 operates automatically according to the set temperature. The compressor 9 has a function of synchronizing the room temperature during refrigeration. The coolant switches whether to start the compressor 9 for cooling according to the set temperature. A flow switch 10 and a first temperature sensor 12 are installed on the outlet pipe of the plate evaporator 11. A flow switch is also installed at the water inlet of the plate condenser 6.

[0034] The pressure tank 16 is a liquid storage tank, and the liquid storage tank has a fully enclosed structure.

[0035] The control electric box includes a temperature controller and an electrical controller. The temperature sensor on the internal liquid outlet pipe of the plate heat exchanger 3 is connected to the temperature controller. The temperature controller controls the external cooling water flow valve, and the second temperature sensor 20 on the outlet of the plate evaporator 11 is connected to the temperature controller of the compressor 9.

[0036] The temperature controller can control the external water flow switch according to the set temperature to adjust the temperature of the coolant for the UV mercury lamp, and perform regulation through the electrical controller.

[0037] A first filter 2 is installed on the external cooling water inlet pipe of the plate heat exchanger 3, a second filter 21 is installed on the liquid outlet pipe of the circulating coolant pump 14, a pressure gauge is installed on the liquid inlet pipe of the circulating coolant pump 14, a pressure gauge is installed on the coolant outlet of the plate heat exchanger 3, and a pressure gauge is installed on the liquid outlet of the plate evaporator 11.

[0038] Working principle:

[0039] The compressor 9 refrigerates. The refrigeration mechanism of the compressor 9 in the cooling cabinet includes a plate condenser 6, a refrigeration compressor 9, and a plate evaporator 11. The compressor 9 compresses the refrigerant into a high-temperature and high-pressure gas, releases heat to the external cooling water through the plate condenser 6, and then the refrigerant enters the plate evaporator 11, where it evaporates and absorbs heat to provide cooling capacity for the coolant.

[0040] Circulating coolant. The circulating coolant mechanism includes an external cooling water inlet pipe 1, a plate heat exchanger 3, an external cooling water outlet pipe 5, and a circulating coolant pump 14. The coolant circulates under the action of the circulating coolant pump 14 and exchanges heat with the external cooling water through the plate heat exchanger 3 to reduce the temperature.

[0041] Coolant distribution. The coolant cooled by the plate heat exchanger 3 is divided into two paths. One path is supplied to the mercury lamp for cooling through the UV mercury lamp liquid inlet pipe 17, and the other path enters the plate evaporator 11 for secondary cooling, and then is supplied to the LED UV lamp for cooling through the LED, UV lamp liquid inlet pipe 18.

[0042] Temperature control. The temperature controller in the control electrical box adjusts the external water flow switch according to the set temperature, thereby controlling the temperature of the coolant. When the coolant temperature is higher than the set temperature, the compressor 9 will automatically start for refrigeration to achieve secondary cooling.

[0043] When the external air temperature can meet the temperature required for heat dissipation of the LED UV lamp, the device can be automatically switched to the cooling mode of heat exchanger heat dissipation to provide sufficient heat dissipation cooling for the LED UV lamp without starting the compressor 9 for refrigeration. After the waste heat of the printing press UV lamp reaches the device through the circulating coolant, it is first cooled by the plate heat exchanger 3, and then cooled and circulated twice through the compressor 9 and the plate evaporator 11 in the cabinet. The coolant for secondary heat dissipation is only supplied to the printing press LED UV lamp for cooling. The other path of coolant from the plate heat exchanger 3 is supplied to the printing press mercury lamp UV lamp for cooling. One path of the external cooling water is supplied to the compressor 9 and the plate condenser 6 in the cabinet for cooling, and one path is supplied to the plate heat exchanger 3 for cooling. The device can set the temperature to provide two different temperatures of coolant for cooling according to the different cooling requirements of the UV lamp types. It is a cooling device cabinet that can perform fully automatic energy-saving cooling on various types of UV lamps through secondary cooling, and can achieve high-efficiency energy conservation and environmental protection for the heat dissipation of the UV lamp.

[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press, characterized in that: It includes a compression refrigeration mechanism, a liquid storage tank mechanism, a circulating coolant mechanism and a control electric box; The compression refrigeration mechanism includes a plate condenser (6), a refrigeration compressor (9) and a plate evaporator (11). The expansion valve inlet on the refrigeration compressor (9) is connected to the outlet pipe of the plate condenser (6), and the expansion valve outlet on the refrigeration compressor (9) is connected to the inlet pipe of the plate evaporator (11). The inlet of the plate condenser (6) is connected to the outlet of the refrigeration compressor (9), and the inlet of the refrigeration compressor (9) is connected to the outlet of the plate evaporator (11); The circulating coolant mechanism includes an external cooling inlet pipe (1), a plate heat exchanger (3), an external cooling outlet pipe (5) and a circulating coolant pump (14). The outlet of the plate heat exchanger (3) is connected to the liquid inlet of the plate evaporator (11), and the liquid outlet of the circulating coolant pump (14) is connected to the liquid inlet of the plate heat exchanger (3); The liquid storage tank mechanism includes a pressure tank (16), and the pressure tank (16) is connected to the liquid inlet of the circulating coolant pump (14); The outlet of the liquid inside the plate heat exchanger (3) is connected to the liquid inlet of the plate evaporator (11) through a tee, and is also connected to the inlet pipe of the UV mercury lamp (17). The outlet of the plate evaporator (11) is connected to the inlet pipe of the LED UV lamp (18). The outlet of the plate evaporator (11) is connected to the inlet pipe of the LED UV lamp (18). The liquid inlet of the circulating coolant pump (14) is connected to the hot liquid return port of the return liquid pipe (19) of the UV mercury lamp and the LED UV lamp.

2. The secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 1, characterized in that: A high-pressure switch (8) is installed on the outlet pipe of the plate condenser (6), and a low-pressure switch (7) is installed on the outlet pipe of the plate evaporator (11). Refrigerant dryers are installed on both pipes.

3. A secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 1, characterized in that: The external cooling inlet pipe (1) is connected to the water inlet of the plate condenser (6), and is also connected to the external water inlet of the plate heat exchanger (3). The external cooling inlet pipe (1) is connected to the outlet of the cooling tower water pump. The external outlet of the plate heat exchanger (3) is connected to the cooling tower through the external cooling outlet pipe (5). A flow control valve (4) is installed on the external outlet of the plate heat exchanger (3). The water outlet of the plate condenser (6) is connected to the cooling tower.

4. A secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 1, characterized in that: A second temperature sensor (20) is installed at the outlet of the liquid inside the plate heat exchanger (3). The inlet of the liquid inside the plate heat exchanger (3) is connected to the liquid outlet of the circulating coolant pump (14). An automatic pressure relief valve (15) is installed on the inlet pipe of the circulating coolant pump (14), and an automatic exhaust valve (13) is installed on the outlet pipe of the circulating coolant pump (14).

5. A secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 1, characterized in that: One of the coolant flows of the LED UV lamp inlet pipe (18) has a temperature that can be set and adjusted. The coolant can be supplied according to the set temperature, and the cooling mode can be automatically switched according to the set temperature, switching to two modes: directly using the plate heat exchanger (3) for cooling and using the coolant after refrigeration by the compressor (9) for cooling. When the set temperature is lower than the outlet temperature of the plate heat exchanger (3), it automatically switches to compression cooling, and the coolant will enter the secondary circulation cooling to reach the set temperature.

6. A secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 1, characterized in that: The compressor (9) operates automatically according to the set temperature. The compressor (9) has a function of synchronizing the room temperature during refrigeration. The coolant switches whether to start the compressor (9) for cooling according to the set temperature. A flow switch is also installed at the water inlet of the plate condenser (6), and a flow switch (10) and a first temperature sensor (12) are installed on the outlet pipe of the plate evaporator (11).

7. A secondary cooling energy-saving cooling cabinet for a UV lamp of a printing press according to claim 1, characterized in that: The pressure tank (16) is a liquid storage tank, and the liquid storage tank has a fully enclosed structure.

8. A secondary cooling energy-saving cooling cabinet for a UV lamp of a printing press according to claim 1, characterized in that: The control electric box includes a temperature controller and an electrical controller. The temperature sensor on the outlet pipe of the plate heat exchanger (3) is connected to the temperature controller, and the temperature controller controls the external cooling water flow valve. The second temperature sensor (20) on the outlet of the plate evaporator (11) is connected to the temperature controller of the compressor (9).

9. The secondary cooling energy-saving cooling cabinet for the UV lamp of a printing press according to claim 8, characterized in that: The temperature controller can control the temperature of the coolant of the UV mercury lamp by adjusting the external water flow switch according to the set temperature and regulate it through the electrical controller.

10. A secondary cooling energy-saving cooling cabinet for a UV lamp of a printing press according to claim 1, characterized in that: A first filter (2) is installed on the external cooling water inlet pipe of the plate heat exchanger (3). A second filter (21) is installed on the outlet pipe of the circulating coolant pump (14). A pressure gauge is installed on the inlet pipe of the circulating coolant pump (14). A pressure gauge is installed at the coolant outlet of the plate heat exchanger (3). A pressure gauge is installed at the outlet of the plate evaporator (11).

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