CN1254805A

CN1254805A - Electrically controlled 4-way diverter valve

Info

Publication number: CN1254805A
Application number: CN 98112755
Authority: CN
Inventors: 姜永明
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-25
Filing date: 1998-11-25
Publication date: 2000-05-31

Abstract

An electrically controlled 4-way diverter valve is an improved multi-way valve for air conditioner is composed of external and internal valve bodies, sealed valve core able to translate in valve body and having two airflow chambers and one diverter chamber, eccentric wheel positioned in diverter chamber and driven by motor, and electric control mechanism composed of switching switch, normally closed contact and working rod. Said switching switch makes motor drive eccentric wheel to rotate in same or different directions, so pushing valve core to translate, which can change the flow direction of gas in valve for refrigeration or heating. Its advantages are saving energy, no leakage and noise, not blocking and easy installation and maintenance.

Description

Electrically controlled 4-way diverter valve

The present invention is a kind of improved electrically controlled 4-way diverter valve, belongs to the changeover valve technical field, is particularly useful for the airflow-reversing of chiller plant such as air conditioner.

The four-way electromagnetic reversing valve that the known high-temperature high-pressure air flow of being discharged by compressor that is used for chiller plant such as air conditioner commutates is owing to be the zone of high pressure in its cylindrical shell, two holes that covered by slide block are low pressure area, occur inevitably leaking by two smooth bright and clean plane sealings between slide block and the valve seat, sealing surface leaks too to some extent between piston and the cylindrical shell, so cause using the refrigerating capacity loss of the refrigeration system of this valve, vent flow directly has influence on the use power and the whole energy consumption of air conditioner in estimating between 1000-4000ml/mim.This valve very easily makes influence cisco unity malfunction and the commutation that piston, slide block and needle obstruction and stuck phenomenon occur and be subjected to air-flow internal pressure difference and compressor because of mechanical motion friction-produced foul in addition; and electromagnetic coil very easily punctures to damage when dirty stifled or stuck phenomenon occurs; and because the spacing between its height pressure pipe is only in 0.4mm; self temperature limit below 120 ℃ so be unfavorable for assembling again; I﹠M; using effect is also undesirable, and the pneumatic noise that for example heats generation when closing shutdown in the process is at least more than 100 decibels.

The purpose of this invention is to provide a kind of improved electrically controlled 4-way diverter valve; this valve can overcome the problems referred to above and not have an internal leakage, no dirty phenomenon such as stifled or stuck and use the chiller plant of this valve such as air conditioner significantly cuts down the consumption of energy and do not have noise when shutting down in the process of heating.

The present invention solves by following scheme, this improved electrically controlled 4-way diverter valve, it has the outer valve (3) that the one side is provided with high pressure admission interface tube (4), improvements are, it is uncovered also having its two ends in the described outer valve (3), the one side is provided with low pressure muffler interface (17) and lays respectively at the high low pressure turnover air pipe interface (16 of these low pressure muffler interface (17) both sides, 18) inner valve body (1), described low pressure muffler interface (17) and high low pressure turnover air pipe interface (16,18) be positioned at outer valve (3) opposite side, being with the middle part in the inner valve body (1) is that airflow chamber (52) and its two ends are respectively the sealed valve cores (5) of the airflow chamber (53) and the chamber (51) of commutating, the eccentric wheel (11) that is driven by synchronous motor (10) is contained in (51) position, commutation chamber of spool (5) and drives spool (5) when it rotates does axial reciprocal translation in inner valve body (1), valve core is provided with seal ring (2,21) first working position of spool (5) is respectively high pressure admission interface tube (4) and high pressure to be imported and exported air pipe interface (18) through inner valve body (1) one end connected sum low pressure muffler interface (17) to be communicated with through airflow chamber (53) with high low pressure turnover air pipe interface (16), second working position of spool (5) is respectively high pressure admission interface tube (4) to be communicated with and low pressure muffler interface (17) is communicated with through airflow chamber (53) with high low pressure turnover air pipe interface (18) through airflow chamber (52) with high low pressure turnover air pipe interface (16), be fixed with a controlling rod (7) on the described eccentric wheel (11), this controlling rod (7) touches the working beam of the normally-closed contact (6) that is installed in outer valve (3) end one side and this contact is disconnected and touches the working beam of the normally-closed contact (61) that is installed in outer valve (3) end opposite side and this contact is disconnected when spool (5) is in second working position when spool (5) is in described first working position, one of synchronous motor (10) is connected to power supply and same two normally-closed contacts (6 of the other end, 61) common junction of an end (12) is joined, described normally-closed contact (6,61) the other end is respectively with two stationary contacts (13 of throw over switch K, 14) join, and the movable contact of this K switch (15) is connected to power supply.

(with reference to the accompanying drawings shown in the 1-3) ABAP Adapter was supplied power to the movable contact (15) of K switch when working principle of the present invention was the work of described electrically controlled 4-way diverter valve by power connection, changes in temperature reverser K changes as shown in Figure 1 to stationary contact (14) and enters refrigeration retaining power supply synchronous machine (10) joint (8), motor enters after the operating condition circuit and gets back to common junction (12) through joint (9) and enter normally-closed contact (6), by eccentric wheel (11) under motor driving, rotate drive controlling rod (7) compressing normally-closed contact (6) thus disconnect and stop motor rotation, making sealed valve core (5) be in primary importance shown in Figure 1 is refrigerating state, the high temperature and high pressure gas of being discharged by compressor flows in the valve and flow into outdoor condenser through its high low pressure turnover air pipe interface (18) again in the inner valve body uncovered inflow inner valve body of (1) one end (1) valve pocket through the high pressure admission interface tube (4) of outer valve (3) and dispels the heat and become overcooled liquid after the condensation process, in capillary section flows to indoor evaporator, become after the evaporation heat absorption then overheated gas again through high low pressure pass in and out air pipe interface (16) enter airflow chamber (53) by with the low pressure muffler interface (17) of airflow chamber (53) conducting thus return and finish this time refrigeration cycle process in the compressor.When needing working machine to heat on the contrary as shown in Figure 2, as above-mentioned need power supply being switched to stationary contact (13) promptly enters and heats retaining power supply synchronous machine (10) joint (9), motor enter after the operating condition circuit through joint (8) get back to connect after common junction (12) enters normally-closed contact switch (61) synchronous machine (10) antiport drive eccentric wheel (11) order about the anti-phase compressing normally-closed contact of controlling rod (7) (61) thus disconnect and stop motor and remain in operation, making sealed valve core (5) be pushed into above-mentioned second working position by eccentric wheel (11) wheel disc promptly heats and promptly stops on the position continue sliding, the high temperature and high pressure gas of discharging from compressor this moment enters valve in and promptly flows into high low pressure turnover air pipe interface (16) towards the uncovered airflow chamber (52) that enters threeway sealed valve core (5) of eccentric wheel (11) one ends by inner valve body (1) the other end through the high pressure admission interface tube (4) of outer valve (3) and arrives indoor condenser and dispel the heat to become after the condensation process and become overheated gas cold fluid evaporates heat-soak treatment again in capillary section flows to outdoor vaporizer after and pass in and out the airflow chamber (53) that air pipe interface (18) enters sealed valve core (5) through high low pressure then and return in the compressor by the low pressure muffler interface (17) of conducting with it, finish thus and once heat cyclic process, in sum, because structure of the present invention is through above-mentioned improvement, thereby for example on the sliding valve core encapsulation process, adopt ring structure to make its sealing reach the zero leakage degree, all drawbacks of having avoided above-mentioned former four-way electromagnetic reversing valve to cause therefrom because of leakage defect, improve the refrigeration or the heating capacity of air conditioner, guarantee its power.Because this valve adopts circuit control as shown in Figure 3, mechanical structure simply, also but easily worn part of spring, sheet piece and so on and mechanical friction so dirty stifled, stuck phenomenon has not existed, motor coil also can not be breakdown, and its commutation process obviously is not subjected to the influence of air conditioner internal gas flow pressure difference and compressor, the heatproof limit value can be at 240 ℃, the spacing of high pressure and low-voltage tube can be more than 10mm, and product is in one's power so very be convenient to assembling, installation and maintenance before being far from.

Be specific embodiment of the present invention and accompanying drawing thereof below.

Fig. 1 is the structure and the refrigeration work view thereof of electrically controlled 4-way diverter valve;

Fig. 2 is that electrically controlled 4-way diverter valve heats working state schematic representation;

Fig. 3 is an electronics four-way change-over valve circuit accompanying drawing.

Among Fig. 1-3, wherein:

1-inner valve body 2-seal ring 21-seal ring 3-outer valve

The 4-high-pressure pipe meets 5-sealed valve core 51-commutation chamber 52-airflow chamber

The 6-of 53-airflow chamber normally-closed contact 61-normally-closed contact 7-controlling rod

8-joint 9-joint 10-synchronous motor 11-eccentric wheel

12-common junction 13-stationary contact 14-stationary contact 15-movable contact

16-high low pressure turnover air pipe interface 17-low pressure muffler interface 18-high low pressure turnover air pipe interface

With reference to Fig. 1-3, the outer valve of this embodiment's electrically controlled 4-way diverter valve (3), inner valve body (1) and sealed valve core (5) adopt high brass or the die casting of red copper one respectively, wherein inner valve body (1) two ends are uncovered, sealed valve core (5) is placed in the inner valve body (1), and inner valve body (1) also is placed in the outer valve (3), the high pressure admission interface tube (4) of outer valve these (3) up, the low pressure muffler interface (17) at the middle part of inner valve body (1) and the high low pressure of two sides turnover air pipe interface (16 thereof, 18) be passed down through corresponding outer valve (3) the valve wall of high pressure admission interface tube (4) in the lump, sealed valve core (5) contains airflow chamber (53 from left to right successively, 52) and the commutation chamber (51), airflow chamber (53,52) below have respectively can with the breach of the size of Peripheral Interface conducting coupling, then installing by a model on the commutation chamber (51) is 49TDV, rotating speed is 5 commentaries on classics/mim, power is 4-6W, voltage is the eccentric wheel (11) that the small synchronous motor (10) of AC220V drives, promote the airflow chamber (53 that commutation chamber (51) drives sealed valve core (5) when making eccentric wheel rotate to the right side or a left side with motor shaft, 52) translation synchronously to the right or left with the breach divided into by it with refrigeration or heat the various combination mode respectively as Fig. 1 or conducting low pressure muffler interface shown in Figure 2 (17) and high low pressure pass in and out air pipe interface (16,18), wherein be nested with silica gel sealing ring (2 respectively on sealed valve core (5) core body of airflow chamber (53) both sides, 21) throw over switch, motor such as above-mentioned, normally-closed contact (6,61) adopt voltage 250V, the KMD2 type normally-closed contact switch of flow 3A, the compression leg formula controlling rod brass rod section bar of drawing materials is made and to be arranged on the connecting rod of eccentric wheel between the two normally-closed contact switches, the joint (8) of synchronous machine (10) is connected to power supply and same two normally-closed contacts (6 of the other end joint (9), the common junction (12) of an end 61) is joined, normally-closed contact (6,61) the other end connects with the two stationary contact electricity of throw over switch K respectively, the movable contact of throw over switch K (15) then is connected to power supply, this embodiment's of the present invention of Gou Chenging electrically controlled 4-way diverter valve valve diameter is Φ 30mm thus, long 120mm, whole height 130mm, high-pressure pipe caliber Φ 8mm, high low pressure turnover tracheae caliber Φ 16mm, low pressure muffler caliber Φ 16mm, be proved to be respond well through trial-manufacture of sample is on probation, reach designing requirement fully.When on probation, 1.5 KCR32 type air conditioners of coupling have been adopted, the high pressure admission interface tube of this valve is connect the compressor exhaust pipe of air conditioner, low pressure muffler interface is connect the compressor return air pipe of air conditioner, two degree high low pressures are passed in and out the indoor or outdoors heat exchanger that air pipe interfaces (16,18) are connected to air conditioner respectively, and through on probation, the loine pressure height is to 3MPa, minimum pressure 0.3MPa is suitable for fluid temperature (F.T.)-40 ℃-240 ℃.Remove and have above-mentioned nothing leakage; no dirty stifled; no stuck phenomenon and be convenient to install; outside the advantages such as maintenance; find that also this sample can not produce pneumatic noise because of closing to shut down in the process of heating; only when the air conditioner defrosting, just can hear of short duration airflow noise; only needing the work several seconds just to finish the refrigeration that sets or heated to require to quit work when commutating because of it also stops power supply; frequent energising and power-down mode occurring than like product in the process of heating keeps the commutation that heats of selector valve and requires its power saving rate can reach 80 percent unexpectedly; and this sample can also be with the selector valve sample in five air conditioners that are applicable to present maximum then is used in 0. 6 air conditioners of present minimum and carries out commutation work, and this is that up to the present similar selector valve product can't be realized.

Claims

1, a kind of electrically controlled 4-way diverter valve, it has the outer valve (3) that the one side is provided with high pressure admission interface tube (4), improvements are, it is uncovered also having its two ends in the described outer valve (3), the one side is provided with low pressure muffler interface (17) and lays respectively at the high low pressure turnover air pipe interface (16 of these low pressure muffler interface (17) both sides, 18) inner valve body (1), described low pressure muffler interface (17) and high low pressure turnover air pipe interface (16,18) be positioned at outer valve (3) opposite side, being with the middle part in the inner valve body (1) is that airflow chamber (52) and its two ends are respectively the sealed valve cores (5) of the airflow chamber (53) and the chamber (51) of commutating, the eccentric wheel (11) that is driven by synchronous motor (10) is contained in (51) position, commutation chamber of spool (5) and drives spool (5) when it rotates does axial reciprocal translation in inner valve body (1), valve core is provided with seal ring (2,21) first working position of spool (5) is respectively high pressure admission interface tube (4) and high pressure to be imported and exported air pipe interface (18) through inner valve body (1) one end connected sum low pressure muffler interface (17) to be communicated with through airflow chamber (53) with high low pressure turnover air pipe interface (16), second working position of spool (5) is respectively high pressure admission interface tube (4) to be communicated with and low pressure muffler interface (17) is communicated with through airflow chamber (53) with high low pressure turnover air pipe interface (18) through airflow chamber (52) with high low pressure turnover air pipe interface (16), be fixed with a controlling rod (7) on the described eccentric wheel (11), this controlling rod (7) touches the working beam of the normally-closed contact (6) that is installed in outer valve (3) end one side and this contact is disconnected and touches the working beam of the normally-closed contact (61) that is installed in outer valve (3) end opposite side and this contact is disconnected when spool (5) is in second working position when spool (5) is in described first working position, one of synchronous motor (10) is connected to power supply and same two normally-closed contacts (6 of the other end, 61) common junction of an end (12) is joined, described normally-closed contact (6,61) the other end is respectively with two stationary contacts (13 of throw over switch K, 14) join, and the movable contact of this K switch (15) is connected to power supply.