TWM392940U - Refrigerant flow rate adjusting device - Google Patents

Description

V. New description: ¢. 2 1 year j S *, 乂二 [New technical field] I Supplement This series is a refrigerant flow control device for air-conditioning systems that use only 4 compressors to provide multiple indoor units, especially The microcomputer control circuit is used to adjust the air-conditioning system to control the flow rate of the refrigerant under different usage requirements according to the system requirements, so that the air-conditioning system can stably provide sufficient cooling effect in the environment of super-high or ultra-high drop environment, and the air-conditioning user can open arbitrarily. Or multiple indoor units do not have any operational restrictions, which are very suitable for users. [Prior Art] Bai Zhizhi's frequency air-conditioning line H outdoor unit provides - indoor unit cooling 'but in many air-conditioning applications only to make some indoor space in certain periods of time, thus causing waste of outdoor host investment, and occupying The aesthetic effect of the use of 'turning (four) in many outdoor side spaces, the length of the refrigerant pipe of the air-conditioning system is also limited by the solid expansion device; the conventional fixed-frequency compressor system is used for the night ❹·) Ή_ bypassing the refrigerant bypass (4) The low-pressure side of the compressor (4) The operating pressure of the refrigerant is within a reasonable range, but the load is not reduced due to the room and the load is reduced. &it is not suitable as a pair of cold air secrets and the highest technology variable frequency nuow can be used as a cooling system for a plurality of indoor units as a compressor. The speed of the way changes the flow of the refrigerant, and the σ sees the machine to provide the demand for multiple indoor unit cold rooms, but the equipment cost is relatively

The highest level of air conditioning in all types. [New content] This creation is composed of a refrigerant filter, a refrigerant shunt tube, a refrigerant pressure equalizing tube, a muffler, an electronic expansion micro-electricity inspection circuit, etc., and the condensed liquid cold provided by the first Jewish compressor. After the refrigerant is still in the crowd - the group of refrigerant shunts for preliminary diversion, and then _ cold _ cold will be cold _ cold surface force preliminary _ deployment to avoid cold-turning different sizes of chamber _ evaporator, evaporators of different distances, or different The indoor side cold room temperature causes the refrigerant to be unevenly distributed. After the _ after the refrigerant is distributed in the pre-designed silencer to reduce the noise of the refrigerant expansion, the most Wei micro-f brain control circuit adjusts the electronic expansion _ opening degree, the refrigerant For the second distribution and expansion, the refrigerant after the above two stages and the average distribution enters the evaporator on the indoor side. Because the air-conditioning system that the Taiwan air-conditioning main unit supplies to many rooms has many different uses, and the mouth of the situation, the town has three kinds of detailed descriptions: first, when the indoor side evaporator has this force '· heart and less than the outer host capacity, the microcomputer The control circuit will shut down the 不 需 需 , , , , , , , , 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 需 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷 冷The (4) side opens a large electronic expansion valve opening to make the cold cooling effect casting low (10) to avoid excessive liquid refrigerant generation, the system is reduced due to the high pressure and low pressure due to low flow resistance, so the operating current also decreases. Secondly, when the total capacity of the diverticulum_evaporator is close to the capacity of the outdoor host, the pre-set electronic miscellaneous _ slave health is used to make the air-conditioning main system fully perform the cooling effect within the 10 (10) full-load operating range. 'When the inner button n capacity is greater than the outdoor host capacity, the microcomputer control circuit will be _ _ _ _ _ each room _ electronic expansion room - minute way, _ too much Cold and hair is in the room _ and the compressor is not produced. There is cold cooling and excessive load damage. Take the four systems as an example. When all four indoor units are powered on, each indoor unit is in every three minutes. After the cold is stopped - the minute is cold, _ just _ stop __ the money will temporarily stop i, cold It; brother 'but this material can be bribed and not overloaded (four), but also full user system So, no matter what kind of opening and closing, it can meet the applicability of the air-conditioning system and the durability of the compressor. ^For the detailed description of this _, the copper sequence is given as an example, but this example shows The case is only limited by the implementation. 1 Only for the use of 'Ming' should not be interpreted as the creation of the 笫μ, this _ this device _ device of the silk machine 11 and indoor unit Nakagawa County 12, u will connect it, this cold The ship's volume adjustment device does not use the imitation computer program to control the best cooling effect when the different bribes and bribes are used. The knowledge of the year is shown in Figure 2. The refrigerant flow regulation of the present invention is difficult for the outdoor refrigerant flow regulating device 202 to be used in the outdoor host 2〇1 and the room (four) transmitter 211, 212, 213, 214, the device contains refrigerant transition device, refrigerant (4) 26, refrigerant pressure tube 271, 272, 273, hunger, silencer 281, 282, 283, 2;; electronic expansion 291, 291U4 and microcomputer control circuit 234 Composition, when any indoor unit has an air-conditioning demand signal into the microcomputer control circuit 234, the microcomputer control circuit 234 provides a compressor start signal to the outdoor host 2〇1, at which time the microcomputer control circuit 234 is timed and densely controlled. At present, the demand for indoor air-conditioning is given to the best opening control of each electronic expansion valve 291, 292, 293, 294. According to this design, it is possible to provide a cool room regardless of the indoor side evaporation correction. For example, when the system has two indoor units (10) on the indoor side, it is detected by the microcomputer control circuit 334 that two indoor units need a cold room at the same time, and the electronic expansion is started at this time. Turning off 391, where is the appropriate opening degree, after the refrigerant is compressed from the compressor 31, it passes through the oil separator 32, the condenser mooring, and the refrigerant line 34 to the passer 35 in the refrigerant flow regulating device 302, via The refrigerant shunt tube enters '肖曰s 381, 382, 383, 384 +, at which time the microcomputer control circuit 334 has turned the opening of the electronic expansion valve 391, 393 to the preset opening degree, and due to the electronic expansion The valves 392, 394 are now closed, so that some of the refrigerant entering the muffler 兕 2, 383 from the refrigerant shunt tube 36 will be connected to the muffler 38 383 by the pressure equalizing pipe 37 372, 373, in the muffler 38 The refrigerant in Bu 383 passes M392940

2 years of the year 2 〇: double positive refrigerant shunt tube (four) - after the tumbling diversion, · f different pre-closure degree produces no _ pressure difference, which makes _f 37 Bu milk, 373 will need to maintain the same force The refrigerant is brought into the muffler @test, coffee, to achieve the purpose of the average refrigerant distribution; and this - through the microcomputer control circuit 334 to control the electronic expansion of the muscle coffee, coffee, _ opening degree of the air-conditioning system because of the second segment of the expansion device It is changed according to the opening of the indoor unit. Therefore, the compressor of the refrigerant system changes in the value of the compressor. The compressor load condition is as shown in Fig. 4, and the load will vary depending on the load of the indoor unit. The difference is that when the indoor side air-conditioning demand is reduced, the load value of the job machine is low. When the indoor side air-conditioning demand increases beyond the capacity of the outdoor unit full load, the creation can also keep the compressor in a state of no more than The cold air secret safety is described in detail below on the microcomputer control circuit control (Fig. 5). When the air conditioning system is powered, it will immediately check whether the protection terminal of the air conditioning system is in normal short circuit. If it is in an open circuit condition , then compress It can't be started; if it is in normal short '(10) condition _ machine must be running for more than three minutes, please wait until the indoor side has cold air demand, then open the corresponding electronic expansion valve of the indoor unit and start Compressor, when the total capacity of the indoor unit is reported to be small, for example, when only the - or two indoor units are turned on, at this time, since the capacity of the outdoor unit is much larger than the capacity of the indoor unit, the electronic type is lowered in order to reduce the cooling efficiency of the system. The opening degree of the expansion valve is adjusted to the maximum, and the cooling fan of the outdoor unit is temporarily stopped according to the temperature of the refrigerant returning pipe to increase the evaporation temperature of the system, and reduce the evaporation of the indoor 7 side, 11 if the temperature of the return pipe 313 is low. At 4 degrees, it is temporarily turned off for 15 seconds every 120 seconds. If the temperature of the return pipe 313 is lower than 1 degree, the lying fan will be turned off for 15 seconds every 7Q seconds. If the temperature of the return pipe (10) is lower than -2 degrees, it will be temporarily closed. The compressor runs for 3 minutes; when the indoor unit load is three, at this time, the air-conditioning system (4) is close to Wei Zehe, and the electronic expansion _ opening degree will reduce the normal opening degree to ensure that the effect of the cold room is maximized; The load is four ports 8^•' because (4) is larger than the load of the compressor, in order to avoid the overload of the compressor, the four electronic expansion valves are temporarily turned off for a minute-minute action. This design does not make the user feel that the cold room is insufficient. , but the function can be used within a safe range. [Simple diagram of the diagram] Figure, a single compressor provides a schematic diagram of multiple indoor unit systems.笫2 diagram, a schematic diagram of the system for creating a refrigerant flow regulating device. Fig. 3 is a schematic diagram of the system operation when the indoor unit of the refrigerant flow regulating device is opened. Figure 4 shows the load diagram of the compressor under different load conditions.笫5 diagram, the microcomputer control logic diagram of the creation control circuit. [Explanation of main component symbols] 11: Outdoor unit 12: Refrigerant tube 13: Refrigerant flow adjustment device 9ί· 2· l〇 Correction Bu 曰Λ 曰Λ 14 14: Refrigerant tube _ 々 々 充

101: indoor unit A

102: indoor unit B

103: indoor unit C

104: indoor unit D 2 (n, 301: air conditioner outdoor unit 202, 302: refrigerant flow rate adjusting device 21, 31: compressor 22, 32: oil separator 23, 33: condenser 24, 34: liquid pipe 25, 35 : refrigerant filter 26, 36: refrigerant shunt tube 27 371: refrigerant equalizing tube 272, 372: refrigerant equalizing tube 273, 373: refrigerant equalizing tube 274, 374: refrigerant equalizing tube

281, 381: Silencer A

282, 382: Silencer B

283, 383: Silencer C

284, 384: Silencer D

291, 391: Electronic expansion valve A

292, 392: Electronic expansion valve B

293, 393: Electronic expansion valve C

294, 394: Electronic expansion valve D 2H, 311: evaporator A M392940

212, 312·. Evaporator B

213, 313: evaporator C 214, 314: evaporator D 220, 320: refrigerant low pressure pipe 223, 323: refrigerant reservoir 234, 334: microcomputer control circuit

Claims (1)

Patent application scope: A refrigerant flow regulating device included in an air-conditioning system, the air-conditioning system comprises: an outdoor unit that provides compression and heat dissipation functions of the air-conditioning system, and the unit is connected with a refrigerant flow regulating device to provide a liquid high-pressure The refrigerant is supplied to the air-conditioning system; a refrigerant flow regulating device, which is a circuit formed between a cold air outdoor unit and a plurality of indoor units, in addition to controlling the operation of the air-conditioning outdoor unit compressor and the political heat fan. Or a device for allocating a suitable refrigerant flow rate for each indoor unit; or a plurality of indoor unit units, after being connected to the refrigerant adjusting device, the refrigerant distributed by the refrigerant flow regulating device is exchanged for heat. a cold-loading device, which is a circuit that is connected between a cold air outdoor unit and a plurality of indoor units, and includes: , a refrigerant filter, a liquid pipe connected to the air conditioner of the air conditioner, and Avoid the foreign matter entering the expansion money's normal operation with the expansion of the expansion; - Group refrigerant resignation, linked to the refrigerant over the brain lang sound m, including the two refrigerant distribution head and several capillary tubes, to facilitate the different capillary renting, ^ Appropriate cold, as the age media for green flow distribution adjustment / reduce the pressure of the refrigerant; and - group silencer, connected to the refrigerant shunt, refrigerant contact pipe and = contact == bribe, (four) for the cold Lai refrigerant pressure pipe , the grinding force is adjusted to be consistent, and. Between the four sounds, 'the refrigerant will pass through the shunt', so that the cold wire force of each indoor unit can be averaged 9S year 曰 2· 1 kg correction With 'to avoid some of the indoor side at a particularly low temperature, the refrigerant is particularly low. Low-low pressure*. A large amount of refrigerant is sucked up, resulting in uneven distribution of refrigerant on the indoor side. Group electronic expansion valve is connected to the silencer and The indoor evaporator is used to adjust the working pressure of the air-conditioning system and the distributed flow of the refrigerant on the indoor side by using the opening control function of the fine and amp; U computer control circuit, which is connected between the power supply and the electronic expansion valve, is different In the internal start-up combination of the f, adjust the opening of the electronic expansion valve to stabilize and resist the system. For example, when the room_cool room demand is less than the compressor energy=, the opening degree of the electronic expansion valve is adjusted to 10 (10). To make the refrigerant fast to reduce the running load of the compressor; when the (four) side load and the compressor capacity are close, at this time, the opening degree of the electronic expansion valve is adjusted to an appropriate small amount, so that the compressor can fully exert the cold room. Capacity; when the indoor side load is greater than the compressor I force 'At this time (4) the circuit will take turns to turn off the electronic expansion of each chamber (four) 一 for one minute to avoid the compressor overload operation, in addition There is also a refrigerant system regenerative detection design to ensure that the working pressure of the refrigerant system is within the design range. If the system's return temperature is too high, there will be a shutdown protection action to ensure that the compressor works under safe working conditions. The refrigerant flow adjustment I卩 device of the second paragraph of the patent scope, the connection type of the device is a liquid refrigerant pipeline supplied by the outdoor host connected to the refrigerant filter, and then enters several refrigerant shunts and each refrigerant shunt Each of the rear of the tube is connected with a refrigerant equalizing tube and a plurality of refrigerant equalizing tubes connected from the adjacent side silencer. Each of the silencers has a plurality of refrigerant equalizing tubes connected to the adjacent side silencer, so each j sounder There will be a refrigerant shunt tube and several refrigerant equalizing tubes flowing in, the rear of the muffler is connected with an electronic expansion valve, the electronic expansion valve is connected to the indoor unit evaporator, and the signal fed back by the indoor unit enters the microcomputer control circuit, Electric M392940 4 ^ X %^SL· f month S supplement brain control circuit to control the degree of each electronic fine expansion and the outdoor host according to the different conditions used. 13