Drainage structure of unit air cabinet

Abstract

The utility model discloses a drainage structure of a unit air cabinet, which comprises a drainage part and a control part, the drainage part is arranged below a surface air cooler in the unit air cabinet, the control part is arranged in a distribution box of the unit air cabinet, and the control part is matched with the drainage part; the drainage part comprises a dripping disc, a water suction pump and a liquid level sensor, the dripping disc is arranged below a surface air cooler in the unit air cabinet, and the water suction pump and the liquid level sensor are installed in the dripping disc; the control part comprises a controller, a relay, a leakage protector and a fuse, the controller, the relay, the leakage protector and the fuse are arranged in a power distribution box of the unit air cabinet, and the relay, the leakage protector and the fuse are sequentially arranged in a circuit used for supplying power between the power distribution box and the water suction pump. When a surface cooling section is in a state of large negative pressure, the problems that drainage is difficult, condensate water overflows to an equipment layer from other places of an air cabinet when reaching a certain degree, and a roof leaks water exist.

Description

Technical Field

[0001] The utility model relates to the technical field of unit wind cabinets, in particular to a drainage structure of a unit wind cabinet. Background Art

[0002] The unit wind cabinet is one of the important components of the hospital air system. The unit fan is used to blow natural wind or fresh air to the next area. The unit wind cabinet includes a cabinet body, a fan, a surface cooler, a primary efficiency, a medium efficiency, a sub-high efficiency, a humidifier, a dehumidifier and a drip tray. Among them, the surface cooler is one of the important components of the wind cabinet, which realizes automatic adjustment of temperature and humidity through electrical control.

[0003] During the cooling season of the unit, the chilled water will be circulated through the surface cooler to absorb the heat in the wind cabinet, and then the natural wind or fresh air in the wind cabinet will cool down, and the moisture in it will condense into condensed water on the surface of the surface cooler. The existing technology uses a drip tray to treat this part of condensed water, so that the condensed water drips into the drip tray and is discharged from the drainage pipe outside the wind cabinet through the drainage port on the drip tray. However, when the surface cooling section is under a large negative pressure, the water in the drip tray is not easy to enter the drainage pipe and be discharged from the drainage pipe, which causes drainage difficulties. In addition, when the condensed water reaches a certain level, it will overflow from other parts of the wind cabinet to the equipment layer, causing roof leakage, affecting normal use.

[0004] In the utility model with application number: 201621119630.1 and publication number CN206073417U, a new type of water collecting pan of a combined wind cabinet is disclosed, which is composed of a water collecting pan body, a cushion beam, a support plate and a drain pipe. The water collecting pan body is V-shaped, and a ditch is provided at the bottom of the V-shape; one end of the drain pipe is connected to the bottom ditch of the water collecting pan body, and the other end is an open drain port; a plurality of support plates are fixed on the top of the water collecting pan body; cushion beams are fixed on both sides of the bottom of the water collecting pan, but when the surface cooling section is under a state of large negative pressure, the water in the drip tray is not easy to enter the drainage pipe and be discharged by the drainage pipe, resulting in drainage difficulties. In addition, when the condensed water reaches a certain level, it will overflow from other places of the wind cabinet to the equipment layer, causing the roof to leak, affecting normal use. Utility Model Content

[0005] Based on this, in response to the above problems, the utility model proposes a drainage structure for the unit wind cabinet, which solves the problem that when the current unit wind cabinet is in use, when the surface cooling section is under a state of large negative pressure, there is difficulty in drainage and the condensed water reaches a certain level and overflows from other parts of the wind cabinet to the equipment layer, causing roof leakage.

[0006] The technical solution of the utility model is:

[0007] A drainage structure of a unit wind cabinet, comprising a drainage part and a control part, wherein the drainage part is installed below a surface cooler in the unit wind cabinet, and the control part is installed in a distribution box of the unit wind cabinet, and the control part and the drainage part are arranged in coordination;

[0008] The drainage part includes a drip tray, a water pump and a liquid level sensor. The drip tray is arranged below the surface cooler in the air cabinet of the unit. The water pump and the liquid level sensor are installed in the drip tray. The drip tray is used to store condensed water condensed on the surface cooler. The water pump is used to extract the condensed water stored in the drip tray. The liquid level sensor is used to sense the water level of the condensed water in the drip tray. The water pump and the liquid level sensor are powered by the distribution box of the air cabinet of the unit.

[0009] The control unit includes a controller, a relay, a leakage protector and a fuse. The controller, relay, leakage protector and fuse are arranged in a distribution box of the unit's wind cabinet. The controller is used to control the relay. The relay, leakage protector and fuse are sequentially arranged in a circuit for power supply between the distribution box and the water pump. The relay is used to control the distribution box to supply power to the water pump. The leakage protector is used to protect the circuit in the event of leakage. The fuse is used to protect the circuit in the event of circuit abnormality. The controller and relay are powered by the distribution box of the unit's wind cabinet.

[0010] Preferably, the signal output terminal of the liquid level sensor is connected to the signal input terminal of the controller.

[0011] Preferably, the signal output terminal of the controller is connected to the signal input terminal of the relay.

[0012] Preferably, the signal output terminal of the distribution box is connected to the signal input terminal of the relay.

[0013] Preferably, the signal output terminal of the relay is connected to the signal input terminal of the leakage protector.

[0014] Preferably, the signal output terminal of the leakage protector is connected to the signal input terminal of the fuse.

[0015] Preferably, the signal output end of the fuse is connected to the signal input end of the water pump.

[0016] Preferably, the drip tray includes a mounting frame that passes through from top to bottom and a mounting plate arranged at the bottom of the mounting frame, a plug-in portion is provided at the top of the mounting plate, the plug-in portion can be inserted into the bottom of the mounting frame and contacts the inner side wall of the bottom of the mounting frame, the mounting plate is detachably connected to the mounting frame, the mounting frame is arranged in conjunction with the surface cooler in the unit's air cabinet, and the mounting frame can be installed in the unit's air cabinet by detachable bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When in use, first preset the drainage level and stop level. When the level sensor senses that the liquid level in the drip tray has reached the preset drainage level, it transmits a signal to the controller. The controller controls the relay to open, so that the distribution box of the unit's air cabinet supplies power to the water pump, so that the water pump starts working to discharge the condensed water in the drip tray out of the unit's air cabinet. When the liquid level drops to the stop level, the controller controls the relay to disconnect, and the distribution box stops supplying power to the water pump, forming a drainage cycle. Since water is pumped by the water pump, it can still complete the pumping and drainage process when the surface cooling section is in a negative pressure state, which solves the problem that when the current unit air cabinet is in use, when the surface cooling section is in a state of large negative pressure, there is difficulty in drainage and the condensed water will overflow from other parts of the air cabinet to the equipment layer when it reaches a certain level, causing roof leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the connection structure of a drainage structure of a unit wind cabinet described in an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the drainage part described in the embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the mounting plate described in the embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the control unit described in the embodiment of the utility model;

[0023] Description of reference numerals:

[0024] 10-drainage part, 11-drip tray, 12-water pump, 13-liquid level sensor, 100-installation frame, 101-installation plate, 102-plug-in point, 103-sealing strip, 104-blocking plate, 105-interface, 106-drainage outlet, 107-connecting pipe, 108-sealing ring, 109-solenoid valve, 110-connector, 111-plug-in block, 112-matching block, 113-fixing bolt, 20-control part, 21-controller, 22-relay, 23-leakage protector, 24-fuse, 30-cooler, 40-distribution box. DETAILED DESCRIPTION

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] like Figures 1 to 4As shown, in order to solve the above problems, this embodiment discloses a drainage structure of a unit wind cabinet, including a drainage part 10 and a control part 20, wherein the drainage part 10 is installed below a surface cooler 30 in the unit wind cabinet, and the control part 20 is installed in a distribution box 40 of the unit wind cabinet, and the control part 20 is arranged in cooperation with the drainage part 10;

[0028] The drainage part 10 includes a drip tray 11, a water pump 12 and a liquid level sensor 13. The drip tray 11 is arranged below the surface cooler 30 in the air cabinet of the unit. The water pump 12 and the liquid level sensor 13 are installed in the drip tray 11. The drip tray 11 is used to store condensed water condensed on the surface cooler 30. The water pump 12 is used to extract the condensed water stored in the drip tray 11. The liquid level sensor 13 is used to sense the water level of the condensed water in the drip tray 11. The water pump 12 and the liquid level sensor 13 are powered by the distribution box 40 of the air cabinet of the unit.

[0029] The control unit 20 includes a controller 21, a relay 22, a leakage protector 23 and a fuse 24. The controller 21, the relay 22, the leakage protector 23 and the fuse 24 are arranged in a distribution box 40 of the unit's wind cabinet. The controller 21 is used to control the relay 22. The relay 22, the leakage protector 23 and the fuse 24 are sequentially arranged in a circuit for power supply between the distribution box 40 and the water pump 12. The relay 22 is used to control the distribution box 40 to supply power to the water pump 12. The leakage protector 23 is used to protect the circuit when leakage occurs. The fuse 24 is used to protect the circuit when the circuit is abnormal. The controller 21 and the relay 22 are powered by the distribution box 40 of the unit's wind cabinet.

[0030] When in use, the drainage level and the stop level are preset. When the level sensor 13 senses that the liquid level in the drip tray 11 has reached the preset drainage level, a signal is transmitted to the controller 21. The controller 21 controls the relay 22 to open, so that the distribution box 40 of the unit wind cabinet supplies power to the water pump 12, so that the water pump 12 starts working to discharge the condensed water in the drip tray 11 out of the unit wind cabinet. When the liquid level drops to the stop level, the controller 21 controls the relay 22 to disconnect, and the distribution box 40 stops supplying power to the water pump 12 to form a drainage cycle. Since water is pumped by the water pump 12, it can still complete the pumping and drainage process when the surface cooling section is in a negative pressure state, which solves the problem that when the current unit wind cabinet is in use, when the surface cooling section is in a state of large negative pressure, there is difficulty in drainage and the condensed water reaches a certain level and overflows from other parts of the wind cabinet to the equipment layer, causing roof leakage.

[0031] Preferably, the water inlet and outlet of the water pump 12 can be connected to a pipe for conveying water, and the pipe at the water outlet extends to the outside of the air cabinet of the unit.

[0032] Preferably, the water pump 12 adopts a micro submersible pump in the prior art.

[0033] Preferably, there is an installation cavity in the distribution box 40 of the unit's wind cabinet, and the controller 21, relay 22, leakage protector 23 and fuse 24 are fixedly installed in the installation cavity, and the controller 21, relay 22, leakage protector 23 and fuse 24 are arranged in coordination.

[0034] like Figure 1 As shown, in order to enable automatic drainage and automatic stopping after the liquid level in the drip tray 11 reaches a preset liquid level, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the signal output end of the liquid level sensor 13 is connected to the signal input end of the controller 21.

[0035] Preferably, the signal output terminal of the controller 21 is connected to the signal input terminal of the relay 22 .

[0036] Preferably, the signal output end of the distribution box 40 is connected to the signal input end of the relay 22 .

[0037] Preferably, the signal output terminal of the relay 22 is connected to the signal input terminal of the leakage protector 23 .

[0038] Preferably, the signal output end of the leakage protector 23 is connected to the signal input end of the fuse 24 .

[0039] Preferably, the signal output end of the fuse 24 is connected to the signal input end of the water pump 12 .

[0040] Preferably, the relay 22 adopts the intermediate relay 22 in the prior art, and the intermediate relay 22 is powered by the distribution box 40 of the unit wind cabinet.

[0041] When in use, the distribution box 40, the relay 22, the leakage protector 23, the fuse 24 and the water pump 12 are electrically connected in sequence, so that the distribution box 40 can supply power to the water pump 12. When the liquid level sensor 13 senses that the condensed water in the drip tray 11 has reached the preset drainage level, it transmits a signal to the controller 21, and then the controller 21 controls the relay 22 to open, so that the electrical connection between the distribution box 40 and the water pump 12 is connected, so that the distribution box 40 supplies power to the water pump 12, and the water pump 12 starts to work. When the liquid level drops to the preset stop level, the controller 21 controls the relay 22 to disconnect, so that the distribution box 40 stops supplying power to the water pump 12, thereby forming an automatically controlled circulating drainage process.

[0042] The leakage protector 23 plays a protective role in the circuit. When leakage occurs in the circuit, the leakage protector 23 will disconnect the circuit. The fuse 24 plays a role in fusing the circuit when the current is abnormal in the circuit.

[0043] Embodiment 2:

[0044] like Figures 2 to 3 As shown, the drip tray 11 is prone to scale when it is in water for a long time, so that the natural wind or fresh air sent to the next end of the unit wind cabinet has an odor. In order to facilitate the cleaning of the scale in the drip tray 11, the present embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the drip tray 11 includes a mounting frame 100 that passes through from top to bottom and a mounting plate 101 arranged at the bottom of the mounting frame 100, and the top of the mounting plate 101 is provided with a plug-in point 102, which can be inserted into the bottom of the mounting frame 100 and contact the inner side wall of the bottom of the mounting frame 100, the mounting plate 101 is detachably connected to the mounting frame 100, the mounting frame 100 is arranged in conjunction with the surface cooler 30 in the unit wind cabinet, and the mounting frame 100 can be installed in the unit wind cabinet by detachable bolts.

[0045] During use, the drip tray 11 can be regularly removed from the unit wind cabinet, and then the mounting frame 100 and the mounting plate 101 can be removed and cleaned separately, and then the drip tray 11 can be reinstalled into the unit wind cabinet, which can effectively reduce the accumulation of scale, thereby solving the problem of natural wind or fresh air delivered to the next end by the unit wind cabinet having odor.

[0046] like Figures 2 to 3 As shown, in order to achieve better sealing between the mounting frame 100 and the mounting plate 101, thereby reducing the penetration of condensed water from the drip tray 11 into the unit air cabinet, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a sealing strip 103 is provided between the plug-in portion 102 and the inner side wall of the bottom of the mounting frame 100. When the plug-in portion 102 is inserted into the bottom of the mounting frame 100, the sealing strip 103 makes the plug-in portion 102 and the mounting frame 100 sealed.

[0047] When in use, the provision of the sealing strip 103 can provide better sealing between the inserting portion 102 on the mounting plate 101 and the mounting frame 100 .

[0048] like Figure 2As shown, in order to make the condensed water condensed on the surface cooler 30 in the unit's air cabinet drip into the drip tray 11 better and reduce the condensed water dripping into the unit's air cabinet, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that an upwardly extending baffle plate 104 is provided on the top of the installation frame 100, and the baffle plate 104 is integrally formed with the installation frame 100. The baffle plate 104 and the top of the installation frame 100 form a trapezoidal interface 105, and the interface 105 is arranged in coordination with the surface cooler 30 in the unit's air cabinet.

[0049] During installation, the baffle plate 104 and the top of the mounting frame 100 form a trapezoidal interface 105 which cooperates with the bottom of the cooler 30 in the air cabinet unit, so that the bottom of the cooler 30 is located within the interface 105, thereby allowing the condensed water condensed on the cooler 30 in the air cabinet of the unit to drip into the drip tray 11 better, thereby reducing the condensed water dripping into the air cabinet of the unit.

[0050] like Figure 2 As shown, in order to facilitate the discharge of condensed water from the drip tray 11, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a drain port 106 is opened on one side of the installation frame 100, and a connecting pipe 107 is provided at the drain port 106. A sealing ring 108 is provided between the connecting pipe 107 and the drain port 106, and one end of the connecting pipe 107 is located inside the installation frame 100, and the other end is located outside the installation frame 100.

[0051] Preferably, the water pump 12 is installed in the drip tray 11 , and the drainage end of the water pump 12 is detachably connected to one end of the connecting pipe 107 located in the installation frame 100 .

[0052] Preferably, a solenoid valve 109 is provided at one end of the connecting pipe 107 located outside the installation frame 100, one end of the solenoid valve 109 is connected to the connecting pipe 107, and the other end can be connected to an external pipeline outside the unit air cabinet, and the signal output end of the controller 21 is connected to the signal input end of the solenoid valve 109.

[0053] When in use, the solenoid valve 109 is controlled to be opened or closed by the controller 21. When the water pump 12 is working, the solenoid valve 109 is opened, and when the water pump 12 stops, the solenoid valve 109 is closed. The condensed water pumped out by the water pump 12 can be discharged to the outside of the unit's air cabinet through the connecting pipe 107, the solenoid valve 109 and the external pipe on the solenoid valve 109.

[0054] The sealing ring 108 between the connecting pipe 107 and the drain port 106 serves to reduce the outflow of condensed water from the gap between the connecting pipe 107 and the drain port 106 .

[0055] like Figure 2As shown, in order to facilitate the installation and disassembly of the mounting plate 101 and the mounting frame 100, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a connecting piece 110 for connecting the mounting plate 101 and the mounting frame 100 is provided between the mounting plate 101 and the mounting frame 100.

[0056] Preferably, the connecting member 110 includes two pairs of plug-in blocks 111 arranged on the side of the mounting plate 101 and a mating block 112 arranged on the outer surface of the mounting frame 100 and mating with the plug-in blocks 111. The plug-in blocks 111 can be inserted into the mating blocks 112 and are detachably connected to the mating blocks 112 via fixing bolts 113.

[0057] During use, when assembling the mounting plate 101 and the mounting frame 100 , it is necessary to insert the plug-in block 111 into the corresponding matching block 112 , and then fix the plug-in block 111 in the matching block 112 by fixing bolts 113 .

[0058] Preferably, the fixing bolt 113 penetrates the plug-in block 111 and the matching block 112 from the sides of the plug-in block 111 and the matching block 112 .

[0059] Working principle of this utility model:

[0060] When in use, the drainage level and the stop level are preset. When the level sensor 13 senses that the liquid level in the drip tray 11 has reached the preset drainage level, a signal is transmitted to the controller 21. The controller 21 controls the relay 22 to open, so that the distribution box 40 of the unit's wind cabinet supplies power to the water pump 12, so that the water pump 12 starts working to discharge the condensed water in the drip tray 11 out of the unit's wind cabinet. When the liquid level drops to the stop level, the controller 21 controls the relay 22 to disconnect, and the distribution box 40 stops supplying power to the water pump 12, forming a drainage cycle. Since water is pumped by the water pump 12, it can still complete the pumping and drainage process when the surface cooling section is in a negative pressure state.

[0061] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A drainage structure for a unit wind cabinet, characterized in that: It comprises a drainage part (10) and a control part (20), wherein the drainage part (10) is installed below a surface cooler (30) in a wind cabinet of the unit, and the control part (20) is installed in a distribution box (40) of the wind cabinet of the unit, and the control part (20) is arranged in coordination with the drainage part (10); The drainage part (10) comprises a drip tray (11), a water pump (12) and a liquid level sensor (13); the drip tray (11) is arranged below the surface cooler (30) in the air cabinet of the unit; the water pump (12) and the liquid level sensor (13) are installed in the drip tray (11); the drip tray (11) is used to store condensed water condensed on the surface cooler (30); the water pump (12) is used to extract the condensed water stored in the drip tray (11); the liquid level sensor (13) is used to sense the water level of the condensed water in the drip tray (11); the water pump (12) and the liquid level sensor (13) are powered by a distribution box (40) of the air cabinet of the unit; The control unit (20) comprises a controller (21), a relay (22), a leakage protector (23) and a fuse (24). The controller (21), the relay (22), the leakage protector (23) and the fuse (24) are arranged in a distribution box (40) of the wind cabinet of the unit. The controller (21) is used to control the relay (22). The relay (22), the leakage protector (23) and the fuse (24) are sequentially arranged in a circuit for power supply between the distribution box (40) and the water pump (12). The relay (22) is used to control the distribution box (40) to supply power to the water pump (12). The leakage protector (23) is used to protect the circuit when leakage occurs. The fuse (24) is used to protect the circuit when the circuit is abnormal. The controller (21) and the relay (22) are powered by the distribution box (40) of the wind cabinet of the unit.

2. The drainage structure of the air cabinet of a unit according to claim 1 is characterized in that: The signal output end of the liquid level sensor (13) is connected to the signal input end of the controller (21).

3. The drainage structure of the air cabinet of a unit according to claim 2 is characterized in that: The signal output end of the controller (21) is connected to the signal input end of the relay (22).

4. The drainage structure of the air cabinet of a unit according to claim 3 is characterized in that: The signal output end of the distribution box (40) is connected to the signal input end of the relay (22).

5. The drainage structure of the air cabinet of a unit according to claim 4, characterized in that: The signal output end of the relay (22) is connected to the signal input end of the leakage protector (23).

6. The drainage structure of the air cabinet of a unit according to claim 5, characterized in that: The signal output end of the leakage protector (23) is connected to the signal input end of the fuse (24).

7. The drainage structure of the air cabinet of a unit according to claim 6, characterized in that: The signal output end of the fuse (24) is connected to the signal input end of the water pump (12).

8. The drainage structure of the air cabinet of a unit according to claim 1, characterized in that: The drip tray (11) comprises a mounting frame (100) which passes through from top to bottom and a mounting plate (101) which is arranged at the bottom of the mounting frame (100); a plug-in portion (102) is arranged at the top of the mounting plate (101); the plug-in portion (102) can be inserted into the bottom of the mounting frame (100) and is in contact with the inner side wall of the bottom of the mounting frame (100); the mounting plate (101) is detachably connected to the mounting frame (100); the mounting frame (100) is arranged in cooperation with a surface cooler (30) in the air cabinet of the unit; and the mounting frame (100) can be installed in the air cabinet of the unit by means of detachable bolts.

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