A crushing air cooler

Abstract

The present invention discloses a pulverizing air cooler, belonging to the technical field of pulverizing air coolers, which includes a four-way reversing valve; a heat exchanger, which includes a first heat exchanger and a second heat exchanger, and a circulating loop is formed among the two heat exchangers and the four-way reversing valve; a low-temperature air blower, which includes a first low-temperature air blower and a second low-temperature air blower, and the two low-temperature air blowers are respectively connected to the first heat exchanger and the second heat exchanger; a pulverizer, which is respectively communicated with the first air blower and the second air blower through a first air duct and a second air duct, and air valves for controlling the wind direction are respectively arranged on the two air ducts. The pulverizing air cooler of the example of the present invention can complete the defrosting process without stopping the machine, and the generated high-temperature and high-humidity hot air can be discharged to the outside in time. While preventing the high-temperature and high-humidity hot air from entering the pulverizer, the hot air can also take away the water vapor melted during the defrosting process and play a role in drying.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing air coolers, and particularly to a crushing air cooler. Background Art

[0002] As is well known, most of the new air-cooled fans on current crushers require shutdown for defrosting, and such models are divided into two types:

[0003] First, during defrosting, the crusher operates normally, and the low-temperature air cooler and the low-temperature air supply fan run. When the low-temperature air supply fan runs during defrosting, the following situations will occur: The frost on the air supply fan blades melts and falls off due to the defrosting heat, and is blown by the fan into the crushing bin of the crusher and becomes water. At the same time, the high-temperature and high-humidity gas generated during defrosting will also be sent into the crushing bin by the fan. At the same time, the high-temperature and high-humidity gas will also melt the frost in the low-temperature air supply pipe and send it into the crushing bin.

[0004] Second, during defrosting, the crusher shuts down and the low-temperature air supply fan shuts down. The shutdown of the crusher affects the production volume. There is a large amount of water on the refrigeration heat exchanger after the low-temperature air cooler defrosts. When the low-temperature air supply fan starts, some of the water will be sucked in by the fan and sent to the crushing bin by the low-temperature air supply fan. At the same time, the frost on the low-temperature air supply fan blades melts and also becomes water, and the water will be sent to the crushing bin when the fan starts. At the same time, since the low-temperature air supply fan stops, there is no low-temperature cold air in the low-temperature air supply pipe, and the temperature in the low-temperature air pipe will rise at this time, and the frost in the low-temperature air pipe will become water, and a large amount of water will enter the crushing bin after the fan starts, affecting the moisture content of the crushed material. Summary of the Invention

[0005] In order to solve the above deficiencies in the prior art, the purpose of the present invention is to provide a crushing air cooler that can complete the defrosting process without shutting down, and the generated hot air can be discharged to the outside in time. While avoiding the hot air from entering the crusher, the hot air can also take away the water vapor generated during defrosting and play a drying role.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0007] There is provided a crushing air cooler, including a four-way reversing valve; a heat exchanger, which includes a first heat exchanger and a second heat exchanger, and a circulating circuit is formed among the two heat exchangers and the four-way reversing valve; a low-temperature air supply fan, which includes a first low-temperature air supply fan and a second low-temperature air supply fan, and the two low-temperature air supply fans are respectively connected to the first heat exchanger and the second heat exchanger; a crusher, which is respectively communicated with the first fan and the second fan through a first air duct and a second air duct, and air valves for controlling the air flow direction are respectively provided on the two air ducts.

[0008] Further, a compressor is further included, and the refrigerant is transported into the four-way reversing valve through the high-pressure interface of the compressor and flows back to the compressor through the low-pressure interface of the compressor.

[0009] Further, an auxiliary condenser is provided in the channel where the high-pressure interface is communicated with the four-way reversing valve.

[0010] Further, a throttle valve is communicated between the first heat exchanger and the second heat exchanger.

[0011] Further, a first air valve is provided on the channel where the first air duct is communicated with the pulverizer.

[0012] Further, a second air valve communicating with the outside is provided on the first air duct.

[0013] Further, a third air valve is provided on the channel where the second air duct is communicated with the pulverizer.

[0014] Further, a fourth air valve communicating with the outside is provided on the second air duct.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. For the pulverizing cold air blower according to the example of the present invention, shutdown is not required during defrosting, so the production volume of the pulverizer will not be affected.

[0017] 2. For the pulverizing cold air blower according to the example of the present invention, dual channels are adopted for alternate refrigeration and defrosting and dehumidification. When one channel is refrigerating, the other channel is heating for defrosting and dehumidification. The two channels alternate, so refrigeration will not be affected by defrosting. During the defrosting process, the humid and hot air can be discharged in time through the blower, and the hot air has the function of drying the heat exchanger, air duct and blower, solving the problem of water in the heat exchanger, blower and air duct during the defrosting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is the schematic diagram of the working principle during refrigeration;

[0020] Figure 2 It is the schematic diagram during defrosting.

[0021] In the figure: 1 - compressor, 11 - high-pressure interface, 12 - low-pressure interface, 2 - auxiliary condenser, 3 - four-way reversing valve, 31 - first interface, 32 - second interface, 33 - third interface, 34 - fourth interface, 41 - first heat exchanger, 42 - second heat exchanger, 5 - throttle valve, 61 - first low-temperature air blower, 62 - second low-temperature air blower, 71 - first air duct, 72 - second air duct, 81 - first air valve, 82 - second air valve, 83 - third air valve, 84 - fourth air valve, 9 - pulverizer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0024] As Figure 1-2 shown, this embodiment provides a crushing air cooler, which includes a compressor 1, an auxiliary condenser 2, a four-way reversing valve 3, a heat exchanger, a low-temperature air blower, an air valve, a crusher 9, etc.

[0025] Specifically, the compressor 1 includes a high-pressure interface 11 and a low-pressure interface 12. The compressor 1 transports the refrigerant to the four-way reversing valve 3 through the high-pressure interface 11, and recovers the refrigerant into the compressor 1 through the low-pressure interface 12.

[0026] The heat exchanger includes a first heat exchanger 41 and a second heat exchanger 42. A circulating circuit is formed among the two heat exchangers and the four-way reversing valve 3. And a throttle valve 5 is connected between the first heat exchanger 41 and the second heat exchanger 42.

[0027] The four-way reversing valve 3 includes a first interface 31, a second interface 32, a third interface 33 and a fourth interface 34. Specifically, the first interface 31 is connected to the high-pressure interface 11, the second interface 32 is connected to the first heat exchanger 41, the third interface 33 is connected to the low-pressure interface 12, and the fourth interface 34 is connected to the second heat exchanger 42.

[0028] An auxiliary condenser 2 is provided in the channel where the high-pressure interface 11 is connected to the four-way reversing valve 3.

[0029] The low-temperature air blower is connected to the crusher 9. Specifically, the low-temperature air blower includes a first low-temperature air blower 61 and a second low-temperature air blower 62. One ends of the two low-temperature air blowers are respectively connected to the first heat exchanger 41 and the second heat exchanger 42, and the other ends are respectively connected to the crusher 9 through a first air duct 71 and a second air duct 72. And air valves for controlling the air flow direction are respectively provided on the two air ducts.

[0030] Specifically, the air valves include a first air valve 81, a second air valve 82, a third air valve 83, and a fourth air valve 84. The first air valve 81 is located on the passage connecting the first air duct 71 to the pulverizer 9, and the second air valve 82 is located on the first air duct 71, which communicates with the outside world. The third air valve 83 is located on the passage connecting the second air duct 72 to the pulverizer 9, and the fourth air valve 84 is located on the second air duct 72, which communicates with the outside world. The air flow direction is controlled by controlling the operating status of each air valve.

[0031] The working principle of the crushing cooling air blower is:

[0032] like Figure 1 As shown, during normal refrigeration, the compressor 1 is running, and the high-temperature and high-pressure refrigerant is discharged from the high-pressure interface 11 and sent to the auxiliary condenser 2 for heat dissipation and cooling. The cooled refrigerant is sent to the first interface 31 of the four-way reversing valve 3. At this time, the first interface 31 of the four-way reversing valve 3 is connected to the second interface 32, and the third interface 33 is connected to the fourth interface 34. Then, it flows through the second interface 32 to the first heat exchanger 41 for condensation and cooling again; the condensed and cooled refrigerant passes through the throttle valve 5, and the throttle valve 5 converts the high-temperature and high-pressure refrigerant into a low-temperature and low-pressure refrigerant, which is then sent to the second heat exchanger 42; after being cooled by the second heat exchanger 42, it flows to the third interface 33 through the fourth interface 34, and returns to the low-pressure interface 12 of the compressor 1 through the third interface 33, and the cycle continues to work to perform refrigeration.

[0033] In addition, the operation process of the fan at this time is as follows: the function of the first heat exchanger 41 is to condense and dissipate heat, the first low-temperature blower 61 works to send hot air to the first air duct 71, at this time the second air valve 82 is opened, the hot air is discharged from the second air valve 82, the first air valve 81 is closed, and the hot air cannot enter the crusher 9;

[0034] The second heat exchanger 42 is used for cooling. The second low-temperature blower 62 is working. At this time, the third air valve 83 is opened and the fourth air valve 84 is closed. The cold air is sent to the crusher 9 through the second air duct 72 .

[0035] When there is a lot of frost on the second heat exchanger 42, the four-way reversing valve 3 is reversed, and the flow direction of the refrigerant changes.

[0036] like Figure 2As shown, when there is a lot of frost on the second heat exchanger 42, the four-way reversing valve 3 needs to reverse. At this time, the first interface 31 is connected to the fourth interface 34, and the second interface 32 is connected to the third interface 33. The compressor 1 operates, and the high-temperature and high-pressure refrigerant is discharged from the high-pressure interface 11 and sent to the auxiliary condenser 2 for heat dissipation and cooling. The cooled refrigerant is sent to the first interface 31 of the four-way reversing valve 3 and flows from the fourth interface 34 to the second heat exchanger 42. At this time, the second heat exchanger 42 changes from the original refrigeration heat exchanger to a heating heat exchanger. After the second heat exchanger 42 condenses and cools the high-temperature and high-pressure refrigerant, it is throttled by the throttle valve 5 to become low-temperature and low-pressure and then sent to the first heat exchanger 41. After cooling and refrigeration, it flows to the second interface 32 and returns to the low-pressure interface 12 of the compressor 1 from the third interface 33.

[0037] In addition, the operation process of the fan at this time is as follows: The function of the first heat exchanger 41 is refrigeration. The first low-temperature supply fan 61 operates. At this time, the first air valve 81 is opened and the second air valve 82 is closed. The cold air is sent to the pulverizer 9 through the first air duct 71.

[0038] The function of the second heat exchanger 42 is condensation and heat dissipation. The second low-temperature supply fan 62 operates. At this time, the third air valve 83 is closed and the fourth air valve 84 is opened. The hot air is discharged from the fourth air valve 84, which solves the problem of excessive frost melting on the fan blades during the heat dissipation process of the second heat exchanger 42. At the same time, the melted water is dried by the hot air, preparing for the next reversal.

[0039] The pulverizing cold air blower of the example of the present invention can complete the defrosting process without stopping the machine, and cold air can be conveyed to the pulverizer 9 during the defrosting process. In addition, the generated hot air can be discharged to the outside in time. While preventing the hot air from entering the pulverizer 9, the hot air can also take away the water vapor generated during the defrosting process and play a drying role.

[0040] Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A crushing air cooler, characterized in that, Comprising: Four-way reversing valve (3); Heat exchangers, including a first heat exchanger (41) and a second heat exchanger (42), forming a circulating loop among the two heat exchangers and the four-way reversing valve (3); Low-temperature air supply fans, including a first low-temperature air supply fan (61) and a second low-temperature air supply fan (62), the two low-temperature air supply fans are respectively connected to the first heat exchanger (41) and the second heat exchanger (42); Pulverizer (9), which is respectively connected to the first low-temperature air supply fan (61) and the second low-temperature air supply fan (62) through a first air duct (71) and a second air duct (72), and air valves for controlling the air flow direction are respectively provided on the two air ducts, and the air valves include a first air valve (81), a second air valve (82), a third air valve (83) and a fourth air valve (84); A first air valve (81) is provided on the passage where the first air duct (71) communicates with the pulverizer (9); A second air valve (82) communicating with the outside is provided on the first air duct (71); A third air valve (83) is provided on the passage where the second air duct (72) communicates with the pulverizer (9); A fourth air valve (84) communicating with the outside is provided on the second air duct (72); Also includes a compressor (1), refrigerant is transported into the four-way reversing valve (3) through the high-pressure interface (11) of the compressor (1), and flows back to the compressor (1) through the low-pressure interface (12) of the compressor (1); A throttle valve (5) is connected between the first heat exchanger (41) and the second heat exchanger (42); During normal refrigeration, the function of the first heat exchanger (41) is to condense and dissipate heat, the first low-temperature air supply fan (61) works, and hot air is sent to the first air duct (71). At this time, the second air valve (82) is opened, and the hot air is discharged from the second air valve (82), and the first air valve (81) is closed, so that the hot air cannot enter the pulverizer (9); the function of the second heat exchanger (42) is to refrigerate, the second low-temperature air supply fan (62) works, at this time the third air valve (83) is opened, the fourth air valve (84) is closed, and cold air is sent to the pulverizer (9) through the second air duct (72); When there is a lot of frost on the second heat exchanger (42), the four-way reversing valve (3) reverses, the flow direction of the refrigerant changes, the function of the first heat exchanger (41) is to refrigerate, the first low-temperature air supply fan (61) works, at this time the first air valve (81) is opened, the second air valve (82) is closed, and cold air is sent to the pulverizer (9) through the first air duct (71); the function of the second heat exchanger (42) is to condense and dissipate heat, the second low-temperature air supply fan (62) works, at this time the third air valve (83) is closed, the fourth air valve (84) is opened, and the hot air is discharged from the fourth air valve (84).

2. The crushing air cooler according to claim 1, characterized in that, An auxiliary condenser (2) is provided in the passage where the high-pressure interface (11) communicates with the four-way reversing valve (3).

Images