JPS60103262A - Air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Technical field of the company] Wood → BFJA is a sky-4R11 machine equipped with multiple pressed silk machines.
This is to add 1 to the il phase device.

[Prior art]

As a conventional device of this type, there is one shown in Fig. 2J'1.

, :t1 is an example in which two line machines are used.

(la), (lbth tlf contraction, 8!, +21 t4
4-way valve, +31 is shear law heat exchanger, (4) is throttling device +
1.451 connection pipes, (6) is a spasmodic heat exchanger, (7
) is a series of pipes, 8) is an accumulator, (9) is a compressor (ia), and (1b) is an oil equalizing pipe that connects to the compressor (ia). (Ia), (lb) It, iJN
'OA is a combination of only one unit operating depending on the load VC,
There are cases where two units are operated in parallel. ” Ta-Kyun oil painting (9) is,
The filtration ability of the oil equalizing pipe prevents the refrigerating machine oil inside the pressure chamber from being concentrated on one side, and in the case of a single pressure filter system,
In order to prevent 75 liters of refrigerant from entering the inside of the compressor that is stopped, some of the high-temperature refrigerant that is being pumped is pumped through an oil equalizer (9). The temperature of the stopped compressor 1 is reduced to the same temperature as that of the operating compressor Ia (! The function is to prevent refrigerant from accumulating inside the compressor container, but if the refrigerating machine oil in the
It may gradually bend into the inside of the stopped machine container, causing a shortage of refrigerating machine oil in the operating compressor, and may require oil to be supplied to the discharge valve and cylinder of the stopped compressor.
There was refrigeration oil in the cylinder (mari, wake up!: At the time of W, an oil hammer was attempted, and the compressor was damaged.

Also, at the time of Kneet + M4 Iso (l a), (lb) No. J, the 1" medium that had been sleeping in the cold plate 4 was completely destroyed in its forming, and a big storm of Ichizoya oil was discharged, and Refrigerating machine oil is constantly discharged during the 1st cycle, and the discharged refrigerating machine oil is added to the above-mentioned refrigeration cycle t?
%, but each 1. fIi11Kuki2eBy the formation of the frost piston (the rise of the discharge amount of the field, the inhalation, the cold bed that returns to l1tl and the feet of the Kyo7 Mountains, the ?Philosopher's machine is 1 Compression 1 year old with Menta and Ransho is completed, Ura and Kawa's 51+!! Compression with I small, α is ・1.4
I was looking at the flaws that caused trouble. In addition, connection-&
＋51
As the refrigerating machine oil circulates, it takes 11 q in the casing, and the amount of refrigerant decreases in the 18 refrigerating stations and 11 q1 refrigerant in the refrigerant pipe. The speed decreases by 1'L d%cff The freezing machine oil kneading machine goes bad and similarly l:I: d
4+'i 5 years old (la), () had the disadvantage of total loss.

When stopping the discharge, the contact λ is equal to 1, lj fl : 5
1 At +71, the refrigerant was 11□;
J:#) Compression 1. If you look at the discharge pipe, the LF compressor discharge port and suction port. +it'j L, pressure diilj17.

[4 key points] The invention of C was made by solving the above-mentioned drawbacks of the conventional technology.
1 Shiroiso's discharge amount, 4-way valve VC5 check valve, 1 U stop valve installed in the oil separator, and the oil content 1 Electric appliances, hardness, and Oil 'yj = 1 through the oil valve, the bypass path k iik ke, which reaches the accumulator eζ,
By returning a portion of the gas discharged during defrosting to the accumulator VC, it is possible to prevent compressor failure due to a lack of refrigerating machine oil.
By increasing the ff and sump pressure and letting a highly malleable refrigerant with a small specific volume τlf flow into the compressed state, the debris removal capacity can be greatly increased, and the defrost can be completed in a short time, and in parallel. The assigned compressor is 18 luck! Transmission level stand, oil equalization pipe (9
), the refrigerating machine oil of the continuously rotating compressor leaks through the oil equalizing pipe, and the compressor stops and the inside of the compressor I (+ttJ m of There is no shortage of ω0,
Check the discharge Jl river of the stopped compressor 4P all ir”Lke 2
ζ By doing so, the refrigerant is absorbed into the cylinder.
f((It can also be said that fx < s) By installing a check valve between the accumulator and the suction side of each pressure phase, It can prevent kneading machine oil from leaking +/il:'f:I, η, and can prevent valve i from collapsing when starting the compressor and Jl (゛εε) from crop failure.Also, when the nitrogen control is stopped at 1 Even if the cold ii!I!: and refrigerating machine oil accumulated in the discharge pipe d yarn return to the discharge volume V of the compressors (la) and (lb) due to the white wax and pressure, the oil content 1 is stored in the thruster V (and is prevented from entering the inside of the compressor discharge by a reverse valve, and 1
Cold p<', % frozen, which had accumulated in the suction distribution system 1.
) Due to its own weight and pressure, the oil turns into ashes at the first suction of the compressor and is stored in the accumulator, and the check valve turns the oil into ashes.
Thin 1 inhalation sub-infection 2 prevention, father, suspended 1
1 minute The refrigerant and refrigerating machine oil that were facing the container are pressurized gm This helps to equalize the pressure and prevent the compressor from starting up.

[Example of Genmei mail]

This will be explained below with reference to an obvious example c22'A.

In Figure 2, there is 2, and the same father as in Figure 1 is 1.
The minutes shall be indicated with the same symbol. In fig.

(1u) is a single mountain separator % to) is a bypass path, (14
(13a) and (18b) are check valves installed on the compressor discharge side. (14a) and (14b) are check valves installed in the compressor iJi. , As shown in Fig. 2, a check valve (1'8a) (1
4b) Arrange the check valves in the order of the oil separator (10) and create a bypass path (II) from the visiting oil separator (lO) to the accumulator (8) via the solenoid valve t121i.
+&, and each compression +fi (1aJ (lb)
Discharge i11! l and the above oil i'm, a container (back center stop valve (18a) [13b] is provided in the middle of 101, and when the front and rear forces are the same, it is considered a field. Father, accumulator (
8) and each h ノITlfl1gll (la) (Ib
) Check valve in the trunk (14a)
(14b), and when the pressures before and after are the same, 1l-1
'Be quiet.

Above: I will explain the three works of → B Akinori in Insei.

In Fig. 8, the solid arrow indicates the ( ) nigration of the cooling 1 prefecture during cooling and defrosting operation. - The intersecting arrows indicate the flow of refrigerant during heating, and the dash-dotted line indicates the flow of kneading oil in the bypass path.

Air conditioner Q has been placed in parallel! :lE+11M1.
4 (high crystal from 1 (lb), 1 bottle 1 ball of refrigerant and refrigeration oil + i 6 moedo J (" + 18a) (
After passing through 18b lk, the refrigerating machine oil enters the oil separator + lU) from its upper part and is separated in 110).
The oil separated from the oil separator (10) is collected at the bottom of the oil separator (10), and the refrigerant separated from the refrigerating machine oil is
4-way valve (2) coming out from the upper fils of uo+, outdoor lit
It reaches the exchanger 3) and exchanges heat in this heat exchanger (3) to become a high-temperature, high-pressure liquid.
The indoor heat exchange is carried out through the connecting pipe d(5).
:, with g+e+, evaporated, connected distribution・, 714,000 sho (
21, Accumulator L81.6 check valve (i4a)
(14k)) ff: Connected in parallel again at & zl, *
LtdatJ (la) (lb) to Jhi) le. Nao, O no Ri 11 There is a VC on the way to the Hiroko bypass (11). Then, the oil content is 11'1, the container (
Oil sump usage output 1 of the sump detection book (not shown) in 1O)
No. 1-1 opens the magnetic valve (121 and 111, oil →
! This '
Cardiac magnetic valve i1;7i $1. hi bypass ib tll)
t is used to store the gas in the accumulator (8), and with the low-pressure gas, Lt; mi i'l (laJ[ib)
9 frozen m oil circle circuit V goo 1
It is much shorter than the conventional device shown in the figure. ;1 hair 1
As is clear from the cold IL r7IE indicated by the dotted arrow during the broadcast, the above-mentioned Rei & 4J! i! It will be a wholesale price loop similar to that at the time of transfer.

Therefore, when the compressor (1'dl) is activated in January, the above-mentioned electromagnetic block 1"t121 gold compressor tt laJ (ib) is surrounded before starting, and 1. Transfer the refrigerant and refrigeration oil to the accumulator (8)
In addition, if there is a problem on the discharge or suction side, it is necessary to prevent the iFd from malfunctioning due to differential pressure in the compressor. By leaving it open, 1・♀stop IL) IICt@p
I 7 The refrigerant that was trapped in the mountains caused the formation τ due to pressure 4 and the castle's recording.
Comparing the cold protection oil of a large kite, Nofu's detailed knowledge (1a) (
Even if it is discharged from 1'bl, the oil content Hfti will increase +'f.
The refrigerant IIj circuit is separated by a few minutes and passes through the bypass circuit (11) without extinguishing the refrigerant IIj circuit, and then passes through the accumulator +8).
K return, pressure 14 Jn l lal with low 1 king gas
l Ib1 F i,,l' 7m Aft 71
41 X) d to i61'? It is possible to use the same tube as C. In addition, in order to keep the refrigerant and refrigerating machine oil in the VC accumulator (8) before startup, it is necessary to keep the refrigerant and refrigerating machine oil in the VC accumulator (8) at 7 ohm/g at startup + LO minute 1. Therefore, refrigerating machine oil does not flow out into (1) medium channel b-4.

In addition, even when the parallel connected pressure buckets ('a) (11) become unbalanced, the pressure of the C tank C Unattended discharge: 1; - Compression with many, frozen hoods, and few peaks - Iso's refrigerator ζ The mountain discharge volume is small, which is the adjustment made by the 1st king, 1st place, and 1st adjustment of the capacity. , the intoxication cycle of the refrigerator; it is enough to be K 41 f4E due to intoxication, and one view of Jfii strange unbalance becomes iJ function.

Ashiy'? -1] Insertion starting wave fixed time (for example, 5 minutes J is 28 times (la) (lb,) f simultaneous K
';:Ji control F+:) By running the VC, the cold 1 m machine oil discharged to the dog i (by the backward start) is forced to
I recovered it, and it woke up again two times, and after driving for a certain period of time, I fell asleep while it was cold and oil was being read. The 6 medium is also expelled:) One thing is the balance of the refrigerator rotation! ■It becomes 0]' ability to make one piece in the state of being left + t4.

W stand, 1-nawa, joining eyes, b+51 +'/l
Even if the length is long, the heavy ring circuit of the refrigerated machine oil is determined by a short bypass circuit without being influenced by the length of the electric wire (i51 t7), so if Tsumugi, i4 ("town (l
b) There is no shortage of refrigeration equipment.

1, compression 4 is the lifting platform of lion, the amount of refrigerant is large +1
] VC decreases and becomes smaller by +1, i.e. dairy distribution g
Even if the speed of the medium moving inside the soup is 1/3 after the cold bed! The length of the I-ring circuit, that is, the Ibus circuit, is constant, and because it is short, there is no possibility of insufficient return (as in Song Dynasty operas).

L'J Katsunari was like 4'8, and in this air conditioner,
When the continuous switch (1υτ person) 1, the auxiliary relay I Q
7) is ai scoring (17a) V of rib 1 must be "L, lj force"
Self 1 is desired by C. At this time, the 2-stage thermometer (
If even one of the contacts in the row is connected, auxiliary relay 2. The timer igo) and timer 2 (c) are energized by the auxiliary relays 4 and 2η, and the solenoid valve coil si 1) is energized through the timer l node (20a) 7.
Bypass valve Q21 opens, oil is separated, and oil is returned to the accumulator (9). Then, through the predetermined time theory timer 2 contact (28allzE closed, and timer 1's 1st point (20a), the compression ↑, 4 for 1, 1dtzz, - is energized, and the compression 1;i (lal
, (Also performs forced operation with lb I.

Then, the timer l4 sets the predetermined time table, and the timer contacts (
20a) is reversed and + gong 1. The cough valve coil 2υ'km is recognized, and at the same time, the cutting relay 8 is activated, the 1' passage is 8, and the auxiliary relay 3 (
7) a Self-preservation due to doubt (i9a) 11. Afterwards, the timer Bi and timer 2 +281 are disabled unless the stop switch t+5] k 9J is activated. By demagnetizing the 4 low valve coil +211, the bypass valve (1
2I closes, father, timer 1's 1st concubine point (20a) is due to fight, @sukere 2, auxiliary relay 4127
How many phrases is 1? If-MQ machine (la), (lb
) (1) Cancel the 28m driving system and use the 2-stage thermo 1241t edition.

[Efficacy of Kabuto]

At the end of 1996, as mentioned above, compression simulation started,
A predetermined period of time before startup, by opening the bypass circuit (1) valve, the 1', F medium, and refrigerating machine oil accumulated in the oil separator are removed from the accumulator (1).
8) By setting the internal VC, forming will not occur in the V-condenser separator when the compression ridge is started, and the
By keeping the q-medium and refrigerating machine oil τ out of the rice separator, a large amount of
Separation of I-province Suzuki oil flowing into the rice separator can be carried out without fail.In addition, when there is a difference in pressure on the startup 6u, discharge and suction sides, the above solenoid valve (121r) can be enclosed, so that the scolding can be reversed. This eliminates cross-starting of the compressor and prevents starting failures of the compressor.

4. Figure ■ 1 "31 car ωC Mei O 5 diagram is a refrigerant system diagram showing a conventional example, Figure 2 is a refrigerant string diagram of this Genmei Kazuya example, and Figure 3 is this Genmei Kazuya example. FIG. 3 is a control circuit diagram of the instant embodiment.

In the figure, (la) I (lb) is the Osaka compressor,
12) is a four-way valve, (31 is a rotary coil, (4) is a closing device, 5) and (7) are a contact) reading device, (6) is a coil in l, and (8) is an accumulator. , (9) is a uniform sound, 1
10) is the oil separation 4, (1 is the bypass path, a is the bypass valve, '13aJ (j8b) is the discharge check valve, (14
aJs (□41) ) is - Toilet check valve, u51v'i stop switch % +161 is the continuous switch, 啼 is the auxiliary relay L, [17a) is the a1 concubine point of the intermediary relay L, 4 is the timer 4 and 11) 4-effect VC except sub-all initial JJ
Menkiri relay 8, (19a) is the a1 concubine of auxiliary relay 3,
(20a) Q timer - long point, -〇,! Baihas valve α2 Jal = Tunyu valve coil for opening and opening, 2
7I fl i Pressing the high tide on and off, 1 year old concubine, a.
(The auxiliary relay that tells the situation, the skin is cold and the switch is turned off after 1.
(28a) indicates the contact point of timer 2, and (28a) indicates the contact point of timer 2.

Note that the same symbol in the middle indicates II:11- or 1.

Great Iwa Masuo

Claims (1)

[Claims] A plurality of compressors connected in parallel, a four-way valve, an outdoor heat exchanger, a throttling device, an indoor heat exchanger, and an accumulator are connected in a ring to form a circulation cycle, and the discharge of the compressor is An oil separator is installed between the side and the four squares,
A bypass path is provided from the oil separator to the accumulator via a solenoid valve, and the discharge side of the 18 above-mentioned 6 pressure units,
Six check valves are installed between the oil separators, and a
Check valve ff: submerged air conditioner 1j At ii': t, the compressor for the above-mentioned straw valve is simultaneously forcedly operated for a period of 4 and 1, and the predetermined time t4j for starting the compressor for both valves is set. An air conditioner characterized by having a 1lilJ control device λ having means for opening at a certain time and closing after a predetermined time.