Split type special air conditioner for electric control room

Abstract

The utility model relates to the technical field of air conditioners, and in particular relates to an air conditioner which comprises two groups of air conditioner systems, the two groups of air conditioner systems are controlled by a PLC (Programmable Logic Controller), each air conditioner system comprises an outdoor unit, the outdoor unit is connected with an indoor unit, the outdoor unit comprises a compressor, the compressor is fixedly arranged on the outdoor unit, the compressor is fixedly connected with an air conditioner stop valve, and the air conditioner stop valve is connected with an air conditioner. The air conditioner stop valve is fixedly connected to an outdoor unit compressor pipeline, and the compressor is fixedly connected with a liquid storage device. According to the split type special air conditioner for the electric control room, the lower part and the upper part are two sets of independent systems and are completely consistent, an air outlet is finally gathered, the lower part and the upper part are the same in principle and are two sets of independent systems, and an air outlet is finally gathered. The two sets of compressors are designed, in order to deal with a large-load environment, only one compressor is started in a small load, and two compressors are started at the same time in a large load.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely is a special air conditioner of split type for electric control room. BACKGROUND

[0002] The electric control room air conditioner is used for cooling the equipment in the electric control room, and a corresponding number of special air conditioners for electric control rooms is configured according to the operation load of the electric control room, and each system is independent and can be independently operated or operated in parallel. The electric control room air conditioner is provided with an air supply port and an air return port, and some air conditioners are provided with a fresh air port according to customer requirements. After the air conditioner is started, the air in the electric control room enters the main unit through the air return port, is cooled (dehumidified) and then is sent to the equipment that needs to be cooled through the air supply port. Each set of unit can automatically load or unload the compressor according to the temperature of the electric control room to ensure the stability of the room temperature.

[0003] The electric control room air conditioner heating is mainly used in cold seasons or even extremely cold seasons, and is provided to prevent the large temperature difference of the air outlet from causing condensation corrosion of the electrical elements when the air conditioner is first started. Therefore, the heating function must be started for at least one hour before the air conditioner is first started in the cold season. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a special air conditioner of split type for electric control room to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a special air conditioner of split type for electric control room, comprising two groups of air conditioning systems, the two groups of air conditioning systems are controlled through PLC, the air conditioning system comprises an outdoor unit, and an indoor unit is electrically connected to the right side of the outdoor unit.

[0006] The outdoor unit comprises a compressor, the compressor is fixedly connected in the outdoor unit, an air conditioner stop valve is fixedly connected to the bottom of the compressor, the air conditioner stop valve is fixedly connected to the bottom of the outdoor unit, a liquid accumulator is fixedly connected to the top of the compressor, the liquid accumulator is fixedly connected to the top of the compressor, condenser assemblies are arranged on the left and right sides of the compressor, the condenser assemblies are fixedly connected to the left and right sides of the outdoor unit, an axial flow fan is fixedly connected to the top of the outdoor unit, and an electric control box is fixedly connected to the rear side of the outdoor unit.

[0007] The indoor unit comprises a centrifugal fan, the centrifugal fan is fixedly connected to the top of the indoor unit, an evaporator assembly is fixedly connected to the bottom of the indoor unit, and an electric heating assembly is fixedly connected to the top of the evaporator assembly.

[0008] Preferably, the compressor is fixedly connected with a ball valve I on the right side, a low-pressure gauge is electrically connected between the compressor and the ball valve I, a low-pressure protector is electrically connected to the right side of the low-pressure gauge, a high-pressure gauge is electrically connected to the left side of the compressor, and a high-pressure protector is electrically connected to the right side of the high-pressure gauge.

[0009] Preferably, the condenser is fixedly connected with a condensing pressure regulating valve on the left side, and the condensing pressure regulating valve is fixedly connected to the bottom of the condenser assembly.

[0010] Preferably, the condenser is fixedly connected with a ball valve II on the right side, a filter is fixedly connected to the right side of the ball valve II, an electromagnetic valve is fixedly connected to the right side of the filter, and the electromagnetic valve is fixedly connected to the left side of the air conditioner stop valve.

[0011] Preferably, the air conditioner stop valve is fixedly connected with an expansion valve on the right side.

[0012] Compared with the prior art, the utility model provides a kind of electric control room split type special air conditioner, with following beneficial effects:

[0013] The electric control room split type special air conditioner, this air conditioner is electric control room split type special air conditioner, and the lower part and the upper part are equivalent to two independent systems, completely consistent, finally gather an air outlet;

[0014] Compared with the traditional air conditioning system, a compressor system is added, and in use, two systems can be independently enabled according to different use needs, increasing the control effect of the temperature in the electric control room when using the air conditioner;

[0015] The lower part and the upper part are the same in principle, and the lower part and the upper part are equivalent to two independent systems, and finally gather an air outlet. The reason why two sets are designed is to cope with large load environment, and only one compressor is opened for small load. For large load, two are opened simultaneously. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be simply introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor:

[0017] Figure 1 It is a schematic diagram of the whole system of the utility model;

[0018] Figure 2 It is a schematic diagram of the front of the outdoor unit structure;

[0019] Figure 3 It is a schematic diagram of the back of the outdoor unit structure;

[0020] Figure 4 is a schematic view of the internal structure of the outdoor unit;

[0021] Figure 5 is a schematic view of the front structure of the indoor unit;

[0022] Figure 6 is a schematic view of the internal structure of the indoor unit;

[0023] Figure 7 is a schematic view of the top structure of the indoor unit;

[0024] Figure 8 is a schematic view of the front structure of the condenser;

[0025] Figure 9 is a schematic view of the internal structure of the condenser;

[0026] Figure 10 is a schematic view of the side structure of the condenser;

[0027] Figure 11 is a sectional view of the internal structure of the condenser;

[0028] Figure 12 is a schematic view of the partial structure of the condenser;

[0029] Figure 13 is a sectional view of the partial structure of the condenser;

[0030] Figure 14 is a schematic view of the front structure of the evaporator;

[0031] Figure 15 is a schematic view of the top structure of the evaporator;

[0032] Figure 16 is a schematic view of the side structure of the evaporator;

[0033] Figure 17 is a schematic view of the internal structure of the evaporator;

[0034] Figure 18 is a sectional view of the partial structure of the evaporator;

[0035] Figure 19 is a schematic view of the front structure of the axial fan;

[0036] Figure 20 is a schematic view of the top structure of the axial fan;

[0037] Figure 21 is a schematic view of the side structure of the axial fan;

[0038] Figure 22 is a schematic view of the front structure of the centrifugal fan;

[0039] Figure 23 Fig. 1 is a structural side view of a centrifugal fan;

[0040] Figure 24 Fig. 1 is a structural side view of a centrifugal fan;

[0041] Figure 25 Fig. 1 is a structural side view of a centrifugal fan;

[0042] Figure 26 Fig. 1 is a structural side view of a centrifugal fan;

[0043] Figure 27 Fig. 1 is a structural side view of a centrifugal fan;

[0044] Figure 28 Fig. 1 is a structural side view of a centrifugal fan; Figure 1 ;

[0045] Figure 29 Fig. 1 is a structural side view of a centrifugal fan; Figure 2 ;

[0046] Figure 30 Fig. 1 is a structural side view of a centrifugal fan; Figure 3 ;

[0047] Figure 31 Fig. 1 is a structural side view of a centrifugal fan;

[0048] Figure 32 Fig. 1 is a structural side view of a centrifugal fan.

[0049] 1, ball valve one; 2, low pressure protector; 3, low pressure gauge; 4, compressor; 5, high pressure protector; 6, high pressure gauge; 7, axial flow fan; 8, condenser assembly; 9, condensing pressure regulating valve; 10, liquid accumulator; 11, ball valve two; 12, filter; 13, solenoid valve; 14, air conditioning stop valve; 15, expansion valve; 16, centrifugal fan; 17, electric heating assembly; 18, evaporator assembly; 19, electric control box. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms 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 electrical connection;Can be direct connection, also can through the indirect connection of intermediate medium, can be the communication or mutual action of two elements of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according of specific circumstances.

[0052] The utility model provides a technical scheme:

[0053] Embodiment one: combine Figures 1 to 4 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 19 、 Figure 20 、 Figure 21 And Figure 25 A kind of electric control room split type special air conditioner, including two groups of air conditioning system, the two groups of air conditioning system are controlled by PLC, the air conditioning system includes outdoor unit, the indoor unit is electrically connected to the right side of the outdoor unit.

[0054] Outdoor unit includes compressor 4, compressor 4 is fixedly connected in the outdoor unit, compressor 4 bottom is fixedly connected with air conditioning stop valve 14, air conditioning stop valve 14 is fixedly connected to the bottom of the outdoor unit, compressor 4 top is fixedly connected with liquid accumulator 10, liquid accumulator 10 is fixedly connected to the top of compressor 4, compressor 4 left and right sides are provided with condenser assembly 8, condenser assembly 8 is fixedly connected to the left and right sides in the outdoor unit, the top of the outdoor unit is fixedly connected with axial flow fan 7, the rear side of the outdoor unit is fixedly connected with electric cabinet 19, compressor 4 right side is fixedly connected with ball valve one 1, low pressure gauge 3 is electrically connected between compressor 4 and ball valve one 1, low pressure protector 2 is electrically connected to the right side of low pressure gauge 3, high pressure gauge 6 is electrically connected to the left side of compressor 4, high pressure protector 5 is electrically connected to the right side of high pressure gauge 6, condensation pressure regulating valve 9 is fixedly connected to the left side of liquid accumulator 10, condensation pressure regulating valve 9 is fixedly connected to the bottom of condenser assembly 8, ball valve two 11 is fixedly connected to the right side of liquid accumulator 10, filter 12 is fixedly connected to the right side of ball valve two 11, electromagnetic valve 13 is fixedly connected to the right side of filter 12, electromagnetic valve 13 is fixedly connected to the left side of air conditioning stop valve 14, air conditioning stop valve 14 right side is fixedly connected with expansion valve 15.

[0055] Embodiment two: refer to Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 14 ,Figure 15 . Figure 16 、 Figure 17 、 Figure 18 、 Figure 22 、 Figure 23 and Figure 24 , and based on the embodiment one, further comprising a centrifugal fan 16 fixedly connected to the top of the indoor unit, an evaporator assembly 18 fixedly connected to the bottom of the indoor unit, and an electric heating assembly 17 fixedly connected to the top of the evaporator assembly 18.

[0056] Referring to Figures 28 to 30 :

[0057] The centrifugal fan is controlled by an AC contactor KM1;

[0058] The 1# compressor is controlled by an AC contact KM2;

[0059] The 2# compressor is controlled by an AC contact KM3;

[0060] The axial fan is controlled by an AC contactor KM4;

[0061] The electric heating is controlled by an AC contactor KM5;

[0062] When the PLC output point Q0.3 is 1;

[0063] The KM5 coil is energized and attracted, and the electric heating is running.

[0064] Referring to Figure 31 :

[0065] The electric control room split type special air conditioner adopts the way of PLC + touch screen control, the upper computer HMI adopts touch screen operation, the lower computer adopts PLC, all equipment is controlled through PLC, and all equipment is started and stopped through touch screen operation.

[0066] This is an integrated PLC, CPU, switch value input, switch value output, analog input, communication in one.

[0067] I0~I10: represent switch value input end;

[0068] Q0~Q9: represent switch value output end;

[0069] AI0~AI1: represent analog input end;

[0070] PORT0: represent communication end;

[0071] Switch value input signal:

[0072] FR1: centrifugal fan overload signal;

[0073] FR2: 1# compressor overload signal;

[0074] FR3: 2# compressor overload signal;

[0075] FR4: Axial flow fan overload signal;

[0076] KA1: 1# compressor alarm signal;

[0077] KA2: 2# compressor alarm signal;

[0078] KA3: Manual-automatic switching signal;

[0079] WT: Electric heating over-temperature alarm signal;

[0080] Switching output signal:

[0081] CPU (Q0): Centrifugal fan operation;

[0082] CPU (Q1): Axial flow fan operation;

[0083] CPU (Q2): Standby;

[0084] CPU (Q3): Electric heating operation;

[0085] CPU (Q4): 1# liquid supply valve operation;

[0086] CPU (Q5): 1# compressor operation;

[0087] CPU (Q6): 2# liquid supply valve operation;

[0088] CPU (Q7): 2# compressor operation;

[0089] CPU (Q8): Reserved;

[0090] CPU (Q9): Standby;

[0091] Analog input signal:

[0092] TS1: Temperature transmitter;

[0093] TS2: Temperature transmitter;

[0094] Communication:

[0095] HMI: Touch screen;

[0096] Control principle: The electric control room split type special air conditioner adopts PLC control, touch screen operation, and has two working modes of manual and automatic. When switched to manual, all devices are started and stopped manually, and when switched to automatic, all devices are started and stopped automatically.

[0097] Manual control: when the SS1 hand-automatic button switch is switched to manual, KA3 relay is powered on and absorbed, SS2 switch is closed, KM1 contactor is powered on and absorbed, centrifugal fan runs, SS3 switch is closed, KM4 contactor is powered on and absorbed, axial flow fan runs, SS4 switch is closed, KM2 contactor is powered on and absorbed, 1# compressor runs, 1# liquid supply valve runs, SS5 switch is closed, KM3 contactor is powered on and absorbed, 2# compressor runs, 2# liquid supply valve runs;

[0098] Automatic control: when the SS1 hand-automatic button switch is switched to automatic, PLC program controls all equipment start and stop.

[0099] Reference Figure 32 :

[0100] The electric control room split type special air conditioner, indoor unit and outdoor unit, indoor unit and outdoor line, also need and touch screen line, this "electrical connection diagram" reaction is the line between each other;

[0101] "Electrical connection diagram" terminal row terminal number is "electrical schematic diagram" "PLC schematic diagram" in the cable line number, for example, "electrical connection diagram" indoor unit group control box terminal row above the terminal number R1, S1, T1 represents "electrical schematic diagram" in the power supply line cable line number.

[0102] The device uses, the working principle of air conditioning body is: the working principle of air conditioner is mainly based on the cycle change of refrigerant, heat transfer is realized through evaporation and condensation process, air conditioning system is mainly composed of compressor, condenser, evaporator, liquid supply valve and throttling device (such as expansion valve or capillary tube);

[0103] Air conditioning refrigeration principle:

[0104] ‌Compressor: after starting the air conditioner, the compressor starts to work, the refrigerant is compressed into high temperature and high pressure gaseous refrigerant by the compressor, which needs to consume electric energy;

[0105] ‌Condensation heat release: high temperature and high pressure gaseous refrigerant enters the condenser (located in the outdoor unit), and exchanges heat with outdoor air in the condenser, releases heat and condenses into liquid, at this time, the outdoor unit blows hot air;

[0106] ‌Throttling pressure reduction: when liquid refrigerant passes through throttling device (such as expansion valve or capillary tube), the pressure suddenly decreases, resulting in partial vaporization of refrigerant and absorbing heat, so that the temperature is further reduced;

[0107] Evaporative heat absorption: Low-temperature and low-pressure liquid and vapor mixed refrigerant enters the evaporator (located in the indoor unit), rapidly vaporizes in the evaporator, and absorbs a large amount of heat, thereby reducing the indoor temperature and the evaporator surface temperature. The fan of the indoor unit blows the hot air in the room through the evaporator, and the heat in the hot air is absorbed by the refrigerant and discharged outside with the refrigerant, thereby achieving indoor cooling;

[0108] Air conditioning heating principle:

[0109] The heating principle of air conditioning is similar to the cooling principle, but the flow direction of the working medium (refrigerant) is reversed. In heating mode, the flow direction of the refrigerant is changed through a four-way valve or other devices, so that the refrigerant that was originally condensed and released heat in the outdoor unit is evaporated and absorbs heat in the indoor unit, thereby heating the indoor air;

[0110] Core components of air conditioning system and their functions:

[0111] ‌Compressor: compresses the refrigerant from low pressure to high pressure, increasing its temperature and pressure;

[0112] ‌Condenser: releases heat and condenses the refrigerant into a liquid state at high pressure;

[0113] Liquid supply valve: a type of electric valve located on the liquid pipe of the refrigeration system, mainly used to regulate the flow of refrigerant. The liquid supply valve has an electric actuator inside, which can control the opening of the valve according to the input electrical signal, thereby changing the flow of refrigerant and maintaining the balance of the system. The valve core of the liquid supply valve is a hole plate, which adjusts the flow of refrigerant by changing the opening of the hole plate;

[0114] ‌Expansion valve or capillary tube: controls the flow and pressure of the refrigerant, making it a low-temperature and low-pressure liquid;

[0115] ‌Evaporator: vaporizes liquid refrigerant by absorbing heat, thereby cooling indoor air;

[0116] Air conditioning valve: connects the outdoor unit and the indoor unit, is a manual valve, and does not require electric control;

[0117] Electric heating: used for heating, controlled by KM5 contactor, controlled by PLC;

[0118] Through the coordinated work of these components, air conditioning can adjust the indoor temperature and provide a comfortable indoor environment.

[0119] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are not intended to denote a physical order, quantity, or importance, but rather are used for the purpose of nomenclature.

Claims

1. An electric control room split type special air conditioner, comprising two sets of air conditioning systems, the two sets of air conditioning systems are controlled by PLC, the air conditioning system comprises an outdoor unit, characterized in that: The outdoor unit is connected with an indoor unit; The outdoor unit comprises a compressor (4) fixedly installed on the outdoor unit, an air conditioner stop valve (14) fixedly connected to the compressor (4), a liquid accumulator (10) fixedly connected to the compressor (4), a condenser assembly (8) fixedly connected to the outdoor unit, an axial flow fan (7) fixedly connected to the outdoor unit, and an electric control box (19) fixedly installed on the outdoor unit. The indoor unit comprises a centrifugal fan (16) fixedly connected to the top of the indoor unit, an evaporator assembly (18) fixedly connected to the bottom of the indoor unit, and an electric heating assembly (17) fixedly connected to the top of the evaporator assembly (18).

2. The electrically controlled split type dedicated air conditioner for a room according to claim 1, characterized in that: The compressor (4) is fixedly connected with a ball valve I (1), and a low-pressure gauge (3) is electrically connected between the compressor (4) and the ball valve I (1). The right side of the low-pressure gauge (3) is electrically connected with a low-pressure protector (2), the left side of the compressor (4) is electrically connected with a high-pressure gauge (6), and the right side of the high-pressure gauge (6) is electrically connected with a high-pressure protector (5).

3. The split type special air conditioner for electric control room according to claim 1, characterized in that: The left side of the liquid accumulator (10) is fixedly connected with a condenser pressure regulating valve (9) fixedly connected to the bottom of the condenser assembly (8).

4. The split-type dedicated air conditioner for a control room according to claim 1, characterized in that: The right side of the liquid accumulator (10) is fixedly connected with a ball valve II (11), the right side of the ball valve II (11) is fixedly connected with a filter (12), the right side of the filter (12) is fixedly connected with a solenoid valve (13), and the solenoid valve (13) is fixedly connected to the left side of the air conditioner stop valve (14).

5. The split type dedicated air conditioner for a control room according to claim 1, characterized in that: The right side of the air conditioner stop valve (14) is fixedly connected with an expansion valve (15).

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