Low-temperature assembly and air conditioning unit

Abstract

The utility model discloses a low-temperature assembly and an air conditioning unit, and the low-temperature assembly comprises a liquid storage tank; one end of the inlet pipeline is connected and communicated with the liquid storage tank; one end of the outlet pipeline is connected and communicated with the liquid storage tank; the one-way valve is arranged on the inlet pipeline; the electromagnetic valve is arranged on the outlet pipeline so as to control the opening or closing of the outlet pipeline; and the safety valve is arranged on the liquid storage tank so as to assist the liquid storage tank in pressure relief. The low-temperature assembly is installed in the air conditioner indoor unit and does not occupy extra remaining space of a machine room, the phenomenon that a plurality of pipelines are connected in a complex mode in the machine room is avoided, maintenance difficulty is reduced, only air pipes and liquid pipes of the air conditioner indoor unit and the air conditioner outdoor unit need to be connected when the air conditioner unit is installed, extra pipeline welding is not needed, and cost is reduced. And the complexity of pipe connection in engineering construction can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration equipment technical field especially relates to a low temperature subassembly and air conditioning unit. BACKGROUND

[0002] In the cold northern region, the outdoor unit of the machine room air conditioner can be in a low temperature environment below-20 DEG C, in the shutdown state, the refrigerant in the refrigeration system no longer carries out the work cycle, at this moment, the indoor temperature of the data center machine room is much higher than the outdoor environment temperature, the refrigerant in the refrigeration system is influenced by the internal and external temperature difference, gradually migrates to the outdoor unit, causes the indoor side to not have enough refrigerant to support to open the compressor, if at this moment, there is the refrigeration demand, opens the compressor, can appear system sustained low pressure and low pressure protection situation, causes the unit compressor device damage or can not normally start.

[0003] Therefore, generally introduce low temperature subassembly to the refrigerant in the air conditioner indoor and outdoor unit is adjusted, so that the compressor can normally run, but, the low temperature subassembly type on the market at present majority is independent low temperature subassembly module, this low temperature subassembly module is generally installed in the machine room first again with the air conditioner indoor and outdoor unit connection, when the number of air conditioning unit in the machine room is more, the number of supporting low temperature subassembly module will also be more and occupy the installation area in the machine room is big, simultaneously, the pipe connection between multiple low temperature subassembly modules and multiple units makes the pipe in the machine room complex, leads to the difficulty of later maintenance to improve.

[0004] Thus, the prior art remains to be improved and improved. UTILITY MODEL CONTENTS

[0005] In view of the above deficiencies of the prior art, the purpose of the utility model is to provide a low temperature subassembly and air conditioning unit, which aims to solve the problem that in the prior art, the low temperature subassembly module is usually used in the form of an independent module, which is generally installed in the machine room first and then connected with the air conditioner indoor and outdoor unit, when the number of air conditioning units in the machine room is large, the number of supporting low temperature subassembly modules will also be large and occupy a large installation area in the machine room, at the same time, the pipe connection between multiple low temperature subassembly modules and multiple units makes the pipe in the machine room complex, leading to the difficulty of later maintenance to improve.

[0006] The technical solution adopted by the utility model to solve the technical problems is as follows:

[0007] In the first aspect, the utility model provides a low temperature subassembly, comprising:

[0008] Liquid storage tank;

[0009] Inlet pipeline, one end of the inlet pipeline is connected with the liquid storage tank and communicates;

[0010] An outlet pipeline, one end of the outlet pipeline is connected with and communicates with the liquid storage tank;

[0011] A one-way valve, which is arranged on the inlet pipeline;

[0012] A solenoid valve, which is arranged on the outlet pipeline to control opening or closing of the outlet pipeline;

[0013] A safety valve, which is arranged on the liquid storage tank to assist pressure relief of the liquid storage tank.

[0014] As a further improved technical solution, the low-temperature assembly further comprises:

[0015] A pressure sensor, which is arranged on the outlet pipeline;

[0016] As a further improved technical solution, the low-temperature assembly further comprises:

[0017] A sight glass, which is arranged on the side of the liquid storage tank to observe the refrigerant liquid level in the liquid storage tank.

[0018] As a further improved technical solution, the sight glass is provided in plurality, and the plurality of sight glasses are distributed along the height direction of the liquid storage tank on the side of the liquid storage tank.

[0019] As a further improved technical solution, along the height direction of the liquid storage tank, the side of the liquid storage tank is provided with a plurality of interfaces, and each of the sight glasses is correspondingly and detachably connected with each of the interfaces.

[0020] As a further improved technical solution, the one-way valve is arranged at the end of the inlet pipeline, and one end of the one-way valve is connected with the end of the inlet pipeline away from the liquid storage tank.

[0021] As a further improved technical solution, the low-temperature assembly further comprises:

[0022] A fluorine injection nozzle, which is arranged on the outlet pipeline.

[0023] As a further improved technical solution, the bottom side of the liquid storage tank is provided with a bottom plate, and the bottom plate is provided with a threaded hole.

[0024] As a further improved technical solution, the inlet pipeline, the outlet pipeline and the safety valve are arranged on the top side of the liquid storage tank, respectively.

[0025] In a second aspect, the utility model provides a kind of air conditioning unit, it includes the low-temperature assembly as in any one of the above, and the inlet pipeline and the outlet pipeline are connected with the refrigerant liquid pipe of air conditioning indoor unit in the air conditioning unit, respectively.

[0026] Compared with the prior art, the embodiment of the utility model has the following advantages:

[0027] The utility model discloses a low temperature subassembly, include: liquid storage tank, import pipeline, one end of import pipeline is connected with liquid storage tank and communicates, export pipeline, one end of export pipeline is connected with liquid storage tank and communicates, check valve, check valve sets up on import pipeline, solenoid valve, solenoid valve sets up on export pipeline to control the opening or close of export pipeline, safety valve, safety valve sets up on liquid storage tank to assist the relief pressure of liquid storage tank, in the utility model, the low temperature subassembly is used to install in the box of air conditioning indoor unit, and the liquid pipe of refrigerant of air conditioning indoor unit is connected with liquid storage tank through import pipeline and export pipeline, when air conditioning unit normal work, part refrigerant in system will be stored in the liquid storage tank of low temperature subassembly, when air conditioning unit stops, solenoid valve on export pipeline closes, and under the joint action of check valve on import pipeline, refrigerant in liquid storage tank will be stored in liquid storage tank. In this way, when air conditioning unit starts in the low temperature environment, solenoid valve in low temperature subassembly will open, and these refrigerants can flow out from export pipeline, enter evaporator after expansion valve and become gaseous refrigerant into compressor, and the sustained refrigeration cycle is formed after discharging through compressor, and air conditioning unit establishes high and low pressure difference normally, ensures that air conditioning unit can start normally and run stably under the low temperature condition. Meanwhile, the low temperature subassembly provided by the utility model is installed in air conditioning indoor unit and does not occupy the remaining space of machine room, avoids the complex connection phenomenon of multiple pipelines in machine room, reduces the maintenance difficulty, and only needs to connect the gas pipe and liquid pipe of air conditioning indoor and outdoor units when installing air conditioning unit, without additional pipeline welding, can greatly reduce the complexity of engineering construction pipe connection. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The utility model provides a low temperature subassembly's structural schematic diagram for the utility model;

[0029] Figure 2 It is the assembly structure schematic diagram of low temperature subassembly and air conditioning indoor unit in the utility model.

[0030] In the drawing: 1, liquid storage tank, 2, import pipeline, 3, export pipeline, 4, check valve, 5, solenoid valve, 6, safety valve, 7, pressure sensor, 8, sight glass, 9, fluorine injection nozzle, 10, bottom plate, 11, air conditioning indoor unit. DETAILED DESCRIPTION

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] Example 1:

[0033] like Figure 1 As shown. The cryogenic assembly includes: a storage tank 1; an inlet pipe 2, one end of which is connected to and communicates with the storage tank 1; an outlet pipe 3, one end of which is connected to and communicates with the storage tank 1; a one-way valve 4, which is installed on the inlet pipe 2; a solenoid valve 5, which is installed on the outlet pipe 3 to control the opening or closing of the outlet pipe 3; and a safety valve 6, which is installed on the storage tank 1 to assist in depressurizing the storage tank 1.

[0034] In this embodiment, the cryogenic component includes a liquid storage tank 1, an inlet pipe 2, an outlet pipe 3, a one-way valve 4, a solenoid valve 5, and a safety valve 6. The liquid storage tank 1 stores refrigerant. One end of the inlet pipe 2 is connected to and communicates with the liquid storage tank 1. One end of the outlet pipe 3 is connected to and communicates with the liquid storage tank 1. The ends of the inlet pipe 2 and the outlet pipe 3, respectively, that are away from the liquid storage tank 1, are used as refrigerant liquid lines (not shown) in the indoor unit 11 of the air conditioner. The one-way valve 4 is located on the inlet pipe 2 and controls the flow direction of the refrigerant to prevent backflow of refrigerant from the inlet pipe 2 into the refrigerant liquid line connected to the inlet pipe 2. The solenoid valve 5 is located on the outlet pipe 3 to control the opening or closing of the outlet pipe 3. The safety valve 6 is located on the liquid storage tank 1 to assist in depressurizing the liquid storage tank 1. Specifically, in this embodiment, the low-temperature component is installed inside the casing of the indoor unit 11 of the air conditioner. The liquid receiver 1 is connected to the refrigerant liquid line of the indoor unit 11 via the inlet pipe 2 and the outlet pipe 3. When the air conditioner unit is operating normally, some refrigerant in the system will be stored in the liquid receiver 1 of the low-temperature component. When the air conditioner unit stops, the solenoid valve 5 on the outlet pipe 3 closes, and together with the one-way valve 4 on the inlet pipe 2, the refrigerant in the liquid receiver 1 will be stored in the liquid receiver 1. Thus, when the air conditioner unit is turned on in a low-temperature outdoor environment, the solenoid valve 5 in the low-temperature component will open, allowing the refrigerant to flow out from the outlet pipe 3, pass through the expansion valve, enter the evaporator, and become gaseous refrigerant before entering the compressor. After compression by the compressor, it is discharged, forming a continuous refrigeration cycle. The air conditioner unit can then establish a normal high and low pressure difference, ensuring normal start-up and stable operation of the air conditioner unit under low-temperature outdoor conditions.

[0035] Meanwhile, the low-temperature assembly is installed in the air conditioner indoor unit 11 without occupying extra remaining space of a machine room, avoids the phenomenon of complex connection of multiple pipelines in the machine room, reduces the maintenance difficulty, and only needs to connect the air pipe and liquid pipe between the air conditioner indoor unit and the air conditioner outdoor unit during installation of the air conditioner unit, without extra pipeline welding, so that the complexity of pipeline connection during engineering construction can be greatly reduced. When the pressure in the low-temperature assembly is too high, the safety valve 6 can be used to release pressure to stabilize the low-temperature assembly.

[0036] As a further scheme, the low-temperature assembly further comprises a pressure sensor 7; the pressure sensor 7 is arranged on the outlet pipeline 3; the pressure sensor 7 in the embodiment is used to monitor the pressure in the low-temperature assembly, and is used to play a warning role; when the pressure in the low-temperature assembly is too high, the safety valve 6 can be automatically opened to release pressure.

[0037] As a further scheme, the low-temperature assembly further comprises a sight glass 8 and a fluorine injection nozzle 9; the fluorine injection nozzle 9 is arranged on the outlet pipeline 3; and the sight glass 8 is arranged on the side of the liquid storage tank 1 and is used to observe the refrigerant level in the liquid storage tank 1. Specifically, the sight glass 8 in the embodiment is used in cooperation with the fluorine injection nozzle 9; when the staff observes that the refrigerant in the liquid storage tank 1 is insufficient through the sight glass 8, the fluorine injection nozzle 9 can be opened to add refrigerant to the liquid storage tank 1.

[0038] In the embodiment, a plurality of sight glasses 8 are arranged, and the plurality of sight glasses 8 are distributed along the height direction of the liquid storage tank 1 on the side of the liquid storage tank 1. Specifically, 2, 3, 4, 5 or more sight glasses 8 can be arranged on the side of the liquid storage tank 1 in the vertical direction, so that the refrigerant storage capacity can be more clearly and intuitively understood.

[0039] As a further scheme, along the height direction of the liquid storage tank 1, a plurality of interfaces are arranged on the side of the liquid storage tank 1, and each of the sight glasses 8 is correspondingly and detachably connected to each of the interfaces. For example, the outer periphery of the interface is provided with external threads, each of the sight glasses 8 is provided with a connecting port (not shown) and the connecting port is provided with internal threads, and each of the sight glasses 8 is threadedly connected to each of the interfaces.

[0040] As a further scheme, the one-way valve 4 is arranged at the end of the inlet pipeline 2, and one end of the one-way valve 4 is connected to the end of the inlet pipeline 2 away from the liquid storage tank 1.

[0041] In the embodiment, the bottom side of the liquid storage tank 1 is provided with a bottom plate 10, and the bottom plate 10 is provided with screw holes (not shown). The liquid storage tank 1 is connected to the bottom side of the inner box of the air conditioner indoor unit 11 through the bottom plate 10, and is detachably connected through bolts.

[0042] As a further solution, the inlet line 2, the outlet line 3 and the safety valve 6 are arranged at the top side of the liquid reservoir 1, and the inlet line 2 and the outlet line 3 can extend into the interior of the liquid reservoir 1.

[0043] Embodiment two:

[0044] The utility model embodiment further provides an air conditioning unit, it includes low temperature subassembly as any one of embodiment one, and the inlet line 2 and the outlet line 3 are connected with the refrigerant liquid pipe of air conditioning indoor unit 11 in the air conditioning unit respectively.

[0045] In conclusion, the utility model discloses a kind of low temperature subassembly and air conditioning unit, wherein, the low temperature subassembly includes: liquid reservoir 1;Inlet line 2, one end of the inlet line 2 is connected with the liquid reservoir 1 and communicates;Outlet line 3, one end of the outlet line 3 is connected with the liquid reservoir 1 and communicates;Check valve 4, the check valve 4 is arranged on the inlet line 2;Solenoid valve 5, the solenoid valve 5 is arranged on the outlet line 3, to control the opening or closing of the outlet line 3;Safety valve 6, the safety valve 6 is arranged on the liquid reservoir 1, to assist the liquid reservoir 1 pressure relief.The low temperature subassembly provided by the utility model is installed in air conditioning indoor unit 11 and does not extra occupy remaining space in machine room, avoids the phenomenon that multiple pipelines are complexly connected in machine room, reduces the difficulty of overhaul, and when air conditioning unit is installed, only the gas pipe and liquid pipe of air conditioning indoor and outdoor unit need to be connected, without additional pipeline welding, can greatly reduce the complexity of engineering construction pipe connection.

[0046] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0047] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside communication or two element mutual action relation, unless another definite limitation.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0049] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can be that first and second features directly contact, or first and second features indirectly contact by intermediate medium.Moreover, first feature "over", "above" and "on" second feature can be that first feature is directly above or obliquely above second feature, or just indicates that the horizontal height of first feature is higher than that of second feature.First feature "under", "below" and "under" second feature can be that first feature is directly below or obliquely below second feature, or just indicates that the horizontal height of first feature is less than that of second feature.

[0050] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used herein are used for explanation only and are not intended to be limiting.

[0051] Of course, the above embodiment of the utility model is described in detail, but it can not be understood as the limitation of the protection scope of the utility model, and the utility model can have other various implementation manners, based on the embodiment, the ordinary skill in the art obtains other implementation manners without any creative labor, which belongs to the protection scope of the utility model, and the protection scope of the utility model is subject to the appended claims.

Claims

1. A cryogenic assembly, characterized by, The application relates to a refrigerant liquid storage tank. The application comprises: a liquid storage tank; an inlet pipeline, one end of which is connected to and communicates with the liquid storage tank; an outlet pipeline, one end of which is connected to and communicates with the liquid storage tank; a one-way valve arranged on the inlet pipeline; a solenoid valve arranged on the outlet pipeline to control the opening or closing of the outlet pipeline; 2. The cryogenic assembly of claim 1, wherein, a safety valve arranged on the liquid storage tank to assist pressure relief of the liquid storage tank. The application further comprises:

3. The cryogenic assembly of claim 2, wherein, a pressure sensor arranged on the outlet pipeline. The application further comprises:

4. The cryogenic assembly of claim 3, wherein, a liquid level mirror arranged on the side of the liquid storage tank to observe the refrigerant liquid level in the liquid storage tank.

5. The cryogenic assembly of claim 4, wherein, The liquid level mirror is provided in multiple, and the multiple liquid level mirrors are distributed along the height direction of the liquid storage tank on the side of the liquid storage tank.

6. The cryogenic assembly of claim 1, wherein, Along the height direction of the liquid storage tank, the side of the liquid storage tank is provided with multiple interfaces, and each liquid level mirror is correspondingly and detachably connected to each interface.

7. The cryogenic assembly of claim 1, wherein, The one-way valve is arranged at the end of the inlet pipeline, and one end of the one-way valve is connected to the end of the inlet pipeline away from the liquid storage tank. The application further comprises:

8. The cryogenic assembly of claim 1, wherein, a fluorine injection nozzle arranged on the outlet pipeline.

9. The cryogenic assembly of claim 1, wherein, The bottom side of the liquid storage tank is provided with a bottom plate, and the bottom plate is provided with a screw hole.

10. An air conditioning unit characterized by, The inlet pipeline, the outlet pipeline and the safety valve are arranged on the top side of the liquid storage tank. The application comprises the low-temperature assembly as claimed in any one of claims 1-9, and the inlet pipeline and the outlet pipeline are respectively connected to the refrigerant liquid pipe of an air conditioner indoor unit in the air conditioning unit.

Images