CN209012473U - Four-way reversing valve and refrigeration system - Google Patents

Abstract

The utility model relates to a kind of four-way reversing valve and refrigeration systems, the refrigeration system of four-way reversing valve includes compressor, outdoor unit, electric expansion valve, indoor units, it further include four-way reversing valve, four-way reversing valve includes the internal valve body for having valve chamber, sliding block is installed in valve chamber, the sliding block controls working position by pilot valve, the sliding block is equipped with more first adapter tubes by valve body, each first adapter tube is blocked by sliding block switches mutual connected state, and at least two first adapter tubes can open at the sliding block, more second adapter tubes are additionally provided on valve body, every first adapter tube that sliding block can be opened at leads directly to corresponding wherein one second adapter tube respectively.The utility model realizes that the flow of fluid in the fluid passage is big, flow resistance is small, provides the efficiency of entire refrigeration system.

Description

Four-way reversing valve and refrigeration system

Technical field

The utility model relates to refrigeration technology fields, more particularly to a kind of four-way reversing valve and refrigeration system.

Background technique

The switching of the Cooling, heating system of the electric appliances such as air-conditioning, refrigerator, water heater is realized by four-way reversing valve.Mesh The four-way reversing valve of preceding market sale, including valve body 10, sliding block 12, pilot valve 11,10 side of valve body are distributed the first adapter tube 14, First adapter tube is D connection, and the other side is distributed the second adapter tube 13, respectively E adapter tube 131, S adapter tube 132, C adapter tube 133, pilot valve 11 are separately connected by left chamber, S adapter tube 132, the right chamber of valve body 10 and the D connection of capillary and valve body 10 respectively.D connects Four-way reversing valve placed in the middle is managed as shown in Figure 1, the four-way reversing valve of D connection biasing is as shown in Figure 2.

When refrigeration system need to freeze, the coil blackout of pilot valve 11, the pilot valve sliding block in pilot valve 11 is moved to left, refrigerant It circulates on the runner that D connection is formed by capillary with right chamber, right chamber chamber pressure increases, and left chamber chamber pressure is small, forces valve Sliding block 12 in body 10 moves to left, and D connection and C adapter tube 133 form on state, and D connection is not turned on E adapter tube 131, S adapter tube 132 State.

When refrigeration system need to heat, the coil of pilot valve 11 is powered, and the pilot valve sliding block in pilot valve 11 moves to right, refrigerant It circulates on the runner that D connection is formed by capillary with left chamber, left chamber chamber pressure increases, and right chamber chamber pressure is small, forces valve Sliding block 12 in body 10 moves to right, and D connection and E adapter tube 131 form on state, and D connection is not turned on C adapter tube 133, S adapter tube 132 State.

D connection four-way reversing valve placed in the middle is when air-conditioner set freezes, as shown in figure 3, refrigerant moves towards are as follows: compressor 2- D connection-C adapter tube 133- outdoor unit 3- electric expansion valve 4- indoor units 5-E adapter tube 131-S adapter tube 132- compressor 2, refrigeration Agent needs to turn during flowing to C pipe from D pipe, and flow resistance is big, and flow is small, will affect the refrigeration efficiency of unit；D connection is placed in the middle Four-way reversing valve is when air-conditioner set heats, as shown in figure 4, refrigerant moves towards are as follows: in the room compressor 2-D adapter tube-E adapter tube 131- Unit 5- electric expansion valve 4- outdoor unit 3-C adapter tube 133-S adapter tube 132- compressor 2, refrigerant are flowing to E pipe from D connection During need to turn, flow resistance is big, and flow is small, will affect the heat efficiency of unit.

After biasing D pipe, D pipe biases four-way reversing valve when air-conditioner set heats, as shown in figure 5, refrigerant moves towards Move towards identical with refrigerant of the D connection four-way reversing valve placed in the middle when air-conditioner set heats, refrigerant flows to E pipe from D pipe It does not need to turn in the process, flow resistance is small, and flow is big, and the efficiency of unit improves.But in the four-way reversing valve of D pipe biasing in sky When adjusting unit refrigeration, as shown in fig. 6, system of the refrigerant trend with D connection four-way reversing valve placed in the middle when air-conditioner set freezes Cryogen moves towards identical, and refrigerant needs to turn during flowing to C pipe from D pipe, and flow resistance is big, and flow is small, will affect unit Refrigeration efficiency.

Therefore, there are such technical problems for existing four-way reversing valve: in the case where refrigeration is with heating, D connection connects with E Channel between pipe 131 and C adapter tube 133 cannot remain the state that flow resistance is small, flow is big.

Utility model content

Based on this, it is necessary to provide a kind of four-way reversing valve and refrigeration system, no matter unit is in refrigeration or heats shape Under state, remain that the flow resistance of unit is small, flow is big, and efficiency is high.

The utility model provides a kind of four-way reversing valve, including the internal valve body for having valve chamber, is equipped with sliding block in valve chamber, The sliding block by pilot valve control working position, the sliding block by valve body be equipped with more first adapter tube, it is each first adapter tube by Blocking for sliding block switches mutual connected state, and at least two first adapter tubes can open at the sliding block, go back on valve body It is taken over equipped with more second, every first adapter tube that can open at sliding block leads directly to corresponding wherein one second adapter tube respectively.

Further, first adapter tube is three, and respectively E adapter tube, S adapter tube, C adapter tube, the sliding block is in the first work When making position, E adapter tube is connected with S adapter tube, and C adapter tube separates with S adapter tube, and the sliding block in the second working position, take over S by C adapter tube Conducting, E adapter tube separate with S adapter tube；

Second adapter tube is two, and respectively D1 adapter tube, D2 adapter tube, the sliding block is in the first working position, the D2 Adapter tube and C adapter tube are straight-through, and for the sliding block in the second working position, the D1 adapter tube and E adapter tube are straight-through.

Further, the line of the D1 adapter tube and E adapter tube between valve body upper opening is L1, and the D2 adapter tube connects with C Line of the pipe between valve body upper opening is L2, and the L1 is parallel to each other or tilts with L2.

Further, motion path of the sliding block in valve chamber is respectively perpendicular to the L1 and L2.

Further, the E adapter tube, S adapter tube, C adapter tube are arranged side by side in the side of valve body, the D1 adapter tube, D2 adapter tube It is arranged side by side in the other side of valve body.

Further, it is separately installed with control valve on each second adapter tube, and the open and-shut mode of each control valve and sliding block work Position is corresponding.

Further, the side wall of the D1 adapter tube and the side wall of D2 adapter tube are respectively equipped with and are correspondingly connected with conducting with pilot valve The first capillary, the second capillary.

Further, the pilot valve is equipped with and is formed by three-way connection tube and the first capillary and the second capillary The third capillary of on state.

Further, the D1 adapter tube side wall, which is connected with, takes over the D12 connecting tube to form on state, the guide with D2 Valve is equipped with the third capillary being conducted with D12 connecting tube.

The utility model also provides a kind of refrigeration system, including compressor, outdoor unit, electric expansion valve, indoor units, It further include the four-way reversing valve, the four-way reversing valve is connect with compressor, outdoor unit, indoor units respectively, and described Two adapter tubes and compressor and company.

The utility model provides a kind of four-way reversing valve and refrigeration system, and no matter refrigeration system is in refrigerating state or makes Warm status is all able to satisfy fluid and flows the technical effect for realizing that flow is big, flow resistance is small between adapter tube, improves entire refrigeration system Efficiency.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of prior art D connection four-way reversing valve placed in the middle.

Fig. 2 is the structural schematic diagram of the four-way reversing valve of prior art D connection biasing.

Refrigerant flows to schematic diagram when Fig. 3 is prior art D connection four-way reversing valve refrigeration placed in the middle.

Refrigerant flows to schematic diagram when Fig. 4 is the four-way reversing valve heating placed in the middle of prior art D connection.

Refrigerant flows to schematic diagram when Fig. 5 is the four-way reversing valve heating of prior art D connection biasing.

Refrigerant flows to schematic diagram when Fig. 6 is the four-way reversing valve refrigeration of prior art D connection biasing.

Fig. 7 is the structural schematic diagram of the four-way reversing valve of the utility model embodiment.

Refrigerant flow direction schematic diagram when Fig. 8 is the four-way reversing valve refrigeration of the utility model embodiment.

Refrigerant flow direction schematic diagram when Fig. 9 is the four-way reversing valve heating of the utility model embodiment.

Figure 10 is the structural schematic diagram of the four-way reversing valve of another embodiment of the utility model.

Figure 11 is the structural schematic diagram of the four-way reversing valve of another embodiment of the utility model.

Main element symbol description

The following detailed description will be further explained with reference to the above drawings the utility model.

Specific embodiment

It should be noted that noun of locality up, down, left and right are shown in Figure of description in the utility model embodiment Diagram on the basis of define, it is convenient to be intended merely to understand and state, should not limit the protection scope of the application, hereafter with this one It causes, repeats no more.

Fig. 7 to Fig. 9 is please referred to, the utility model embodiment provides a kind of refrigeration system, including compressor 2, outdoor unit 3, electric expansion valve 4, indoor units 5, further include four-way reversing valve, the four-way reversing valve respectively with compressor 2, outdoor unit 3, indoor units 5 connect, and the valve body 10 of the four-way reversing valve is equipped with more first adapter tubes 13 and more second adapter tubes 14, The second adapter tube 14 and compressor 2 of the four-way reversing valve simultaneously connect.It is appreciated that second adapter tube 14 be more, respectively with Compressor 2 connects compressed machine 2 and controls, and the refrigerant that compressor 2 is flowed out can be to each output of the second adapter tube 14, this The refrigeration system of utility model embodiment uses the four-way reversing valve, and flow resistance is small, and efficiency is high.

Trend of the refrigerant when refrigeration system is freezed are as follows: compressor 2- the second adapter tube 14- the first adapter tube 13- outdoor unit 3- electric expansion valve 4- indoor units 5- the first adapter tube 13- compressor 2；Trend of the refrigerant when refrigeration system heats are as follows: pressure Contracting machine 2- the second adapter tube 14- the first adapter tube 13- indoor units 5- electric expansion valve 4- outdoor unit 3- the first adapter tube 13- compressor 2。

Referring to Fig. 7, the present embodiment provides a kind of four-way reversing valve, including the internal valve body 10 for having valve chamber, in valve chamber Sliding block 12 is installed, the sliding block 12 controls working position by pilot valve 11, and valve body 10 is equipped with more first adapter tubes 13, and each the One adapter tube 13 is switched mutual connected state by blocking for sliding block 12, and described at least two first adapter tubes 13 can open at Sliding block 12 is additionally provided with more second adapter tubes 14 on valve body 10, and every first adapter tube 13 that can open at sliding block 12 is led directly to pair respectively Answer wherein second adapter tube 14.

It is appreciated that every first adapter tube 13 that can open at sliding block 12 leads directly to corresponding wherein one second adapter tube respectively 14, refrigerant can be made to flow into each second adapter tube, 14 outflux with the phase adapter flowed out from the first adapter tube 13 is needed Outflow is now led directly in cause for gossip, realizes that flow is big between the first adapter tube 13 and the second adapter tube 14, flow resistance is small, the high technical effect of efficiency. Second adapter tube 14 is more, can be two, three, four etc., and first adapter tube 13 is also more, can make two, three Root, four etc., are arranged according to specific needs.First adapter tube 13 can be arranged in parallel between each other with the second adapter tube 14, can also be with Angled setting leads directly to corresponding wherein one piece the as long as being able to achieve and can open at every first adapter tube 13 of sliding block 12 respectively Two adapter tubes 14.

In the present embodiment, first adapter tube 13 is three, and respectively E adapter tube 131, S adapter tube 132, C adapter tube 133 are described In the first working position, E adapter tube 131 and S adapter tube 132 are connected sliding block 12, and C adapter tube 133 and S adapter tube 132 separate, the sliding block 12 In the second working position, C adapter tube 133 and S adapter tube 132 are connected, and E adapter tube 131 and S adapter tube 132 separate；Second adapter tube 14 is Two, respectively D1 adapter tube 141, D2 adapter tube 142, in the first working position, the D2 adapter tube 142 and C takes over the sliding block 12 133 is straight-through, and for the sliding block 12 in the second working position, the D1 adapter tube 141 and E adapter tube is straight-through.D2 adapter tube 142 and C adapter tube 133 Straight-through, the D1 adapter tube 141 and E adapter tube is straight-through, can satisfy refrigerant in D1 adapter tube 141-E adapter tube 131, D2 adapter tube 142-C Circulation between adapter tube 133, flow is big, and flow resistance is small.

It is appreciated that being intended merely to understanding and table when the first working position and the second working position depending on viewing system working condition It states conveniently, the first working position in the present embodiment is working position when refrigeration system is freezed, and the second working position in the present embodiment is Working position when refrigeration system heats.When refrigeration system is freezed, sliding block 12 is moved to left, so that E adapter tube 131 and S adapter tube 132 are connected, C is connect Pipe 133 and S adapter tube 132 separate, and E adapter tube 131 and S adapter tube 132 are separated by sliding block 12 and valve body 10, C adapter tube 133 and valve body 10 Conducting, trend of the refrigerant when refrigeration system is freezed are as follows: compressor 2-D2 adapter tube 142-C adapter tube 133- outdoor unit 3- electronics Expansion valve 4- indoor units 5-E adapter tube 131-S adapter tube 132- compressor 2；When refrigeration system heats, sliding block 12 is moved to right, so that C connects Pipe 133 and S adapter tube 132 are connected, and E adapter tube 131 and S adapter tube 132 separate, and C adapter tube 133 and S adapter tube 132 pass through sliding block 12 and valve body 10 separate, and E adapter tube 131 and valve body 10 are connected, trend of the refrigerant when refrigeration system heats are as follows: compressor 2-D1 adapter tube 141- E adapter tube 131- indoor units 5- electric expansion valve 4- outdoor unit 3-C adapter tube 133-S adapter tube 132- compressor 2.

Specifically, the line of the D1 adapter tube 141 and E adapter tube 131 between 10 upper opening of valve body is L1, the D2 adapter tube Line of the 142 and C adapter tube 133 between 10 upper opening of valve body is L2, and the L1 is parallel to each other or tilts with L2.L1 and L2 phase It is straight-through in D1 adapter tube 141-E adapter tube 131, the formation of D2 adapter tube 142-C adapter tube 133 that mutually parallel or inclination all can satisfy refrigerant The effect of flowing.Preferably, in as shown in Figure 7, L1 is parallel to each other with L2, conducive to the flowing of refrigerant in entire refrigeration system.

Specifically, motion path of the sliding block 12 in valve chamber is respectively perpendicular to the L1 and L2.The sliding block 12 exists It is side-to-side movement in the present embodiment, the sliding block 12 moves perpendicular to the L1 and L2, is advantageously implemented and blocks the first adapter tube 13 In part adapter tube effect, with switch the first adapter tube 13 occlusion state.

Specifically, the E adapter tube 131, S adapter tube 132, C adapter tube 133 are arranged side by side in the side of valve body 10, the D1 is connect Pipe 141, D2 adapter tube 142 are arranged side by side in the other side of valve body 10.It is appreciated that E adapter tube 131, S adapter tube 132, C adapter tube 133 are Make not to be arranged side by side, be also able to satisfy can open at every first adapter tube 13 of sliding block 12 lead directly to respectively it is corresponding wherein one second connect The technical effect of pipe 14.

In the present embodiment, control valve, and the open and-shut mode and sliding block of each control valve are separately installed on each second adapter tube 14 12 working positions are corresponding.

It is appreciated that by control valve, can control flowed into from the refrigerant that compressor 2 flows out from D1 adapter tube 141 or It is to be flowed into from D2 adapter tube 142, and control D1 adapter tube 141 or D2 adapter tube 142 and be adapted with refrigeration system working condition.Control valve 6a controls the on state of D1 adapter tube 141, and control valve 6b controls the on state of D2 adapter tube 142.When refrigeration system refrigeration, E Adapter tube 131 and S adapter tube 132 are connected, and C adapter tube 133 and S adapter tube 132 separate, and the D2 adapter tube 142 and C adapter tube 133 are straight-through, this When, D1 adapter tube 141 is closed in open 142 channel of D2 adapter tube of control valve, and refrigerant is flowed into from D2 adapter tube 142, is flowed from C adapter tube 133 Out；When refrigeration system heating, C adapter tube 133 and S adapter tube 132 are connected, and E adapter tube 131 and S adapter tube 132 separate；The D1 adapter tube 141 is straight-through with E, at this point, control valve opens 141 channel of D1 adapter tube, closes D2 adapter tube 142, and refrigerant is flowed into from D1 adapter tube 141, It is flowed out from E adapter tube 131, the control valve can be solenoid valve.

As shown in fig. 7, the side wall of the D1 adapter tube 141 and the side wall of D2 adapter tube 142 be respectively equipped with it is right with pilot valve 11 The first capillary 15, the second capillary 16 of conducting should be connected.It is realized due to compared to the prior art, increasing D2 adapter tube 142 With the straight-through effect of the first adapter tube 13, while D2 adapter tube 142 is controlled by pilot valve 11, can be by taking in pilot valve 11 and D2 Increase by the second capillary 16 before 142 and realize that pilot valve 11 drives 12 motion control of sliding block in valve body 10, the fluid of formation is walked To are as follows: D1 adapter tube 141- the first capillary 15- pilot valve 11 or D2 adapter tube 142- the second capillary 16- pilot valve 11.

As shown in Figure 10 and Figure 11, another embodiment of the utility model is related separately to.Another implementation as shown in Figure 10 Example is that the pilot valve 11, which is equipped with, passes through three-limb tube 18 and the first capillary compared to the distinctive points of previous embodiment 15 and second capillary 16 formed on state third capillary 17.D1 adapter tube 141 is connected to the first capillary 15, D2 adapter tube 142 are connected to the second capillary 16, and pilot valve 11 is connected to third capillary 17, the first capillary 15, the second capillary 16, third hair Tubule 17 is linked together by three-way connection, the fluid trend of formation are as follows: D1 adapter tube 141- the first capillary 15- threeway connection Pipe 18- third capillary 17- pilot valve 11 or D2 adapter tube 142- the first capillary 15- three-limb tube 18- third capillary 17- pilot valve 11.

Another embodiment as shown in figure 11 is compared to the distinctive points of previous embodiment, 141 side wall of D1 adapter tube It is connected with the D12 connecting tube 19 that on state is formed with D2 adapter tube 142, the pilot valve 11 is equipped with and 19 phase of D12 connecting tube The third capillary 17 of conducting.D12 connecting tube 19 is set between D1 adapter tube 141, D2 adapter tube 142, and D12 connecting tube 19 can be with 10 horizontal direction parallel of valve body, can also be angled, and D12 connecting tube 19 is placed in outside valve body 10, the fluid trend of formation Are as follows: D1 adapter tube 141-D12 connecting tube 19- third capillary 17- pilot valve 11 or D2 adapter tube 142-D12 connecting tube 19-- Three capillary 17- pilot valve 11.

In above-described embodiment, the first capillary 15 and D1 adapter tube 141, the second capillary 16 and D2 adapter tube 142, third capillary Pipe 17 and pilot valve 11, D12 connecting tube 19 and D1 adapter tube 141 and D2 adapter tube 142, three-limb tube 18 and the first capillary 15, the connection type between the second capillary 16, third capillary 17 is all made of the mode being fixedly connected, and can use welding, Pad uses soldering connection.

No matter refrigeration system is in refrigerating state or heats state the utility model, is all able to satisfy fluid between adapter tube The technical effect that flow is big, flow resistance is small is realized in flowing, so that entire refrigeration system efficiency improves.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of four-way reversing valve is equipped with sliding block in valve chamber, the sliding block passes through guide including the internal valve body for having valve chamber Valve controls working position, and the sliding block is equipped with more first adapter tubes by valve body, and each first adapter tube is blocked switching phase by sliding block Connected state between mutually, and at least two first adapter tubes can open at the sliding block, it is characterised in that: it is additionally provided on valve body more Root second is taken over, and every first adapter tube that can open at sliding block leads directly to corresponding wherein one second adapter tube respectively.

2. four-way reversing valve as described in claim 1, it is characterised in that: first adapter tube is three, respectively E adapter tube, S Adapter tube, C adapter tube, in the first working position, E adapter tube is connected the sliding block with S adapter tube, and C adapter tube separates with S adapter tube, the sliding block In the second working position, C adapter tube is connected with S adapter tube, and E adapter tube separates with S adapter tube；Second adapter tube is two, respectively D1 Adapter tube, D2 adapter tube, for the sliding block in the first working position, the D2 adapter tube and C adapter tube are straight-through, and the sliding block is in the second working position When, the D1 adapter tube and E adapter tube are straight-through.

3. four-way reversing valve as claimed in claim 2, it is characterised in that: D1 adapter tube and E adapter tube valve body upper opening it Between line be L1, the line of D2 adapter tube and C adapter tube between valve body upper opening be L2, the L1 and L2 be parallel to each other or Person's inclination.

4. four-way reversing valve as claimed in claim 3, it is characterised in that: motion path of the sliding block in valve chamber hangs down respectively Directly in the L1 and L2.

5. four-way reversing valve as claimed in claim 2, it is characterised in that: the E adapter tube, S adapter tube, C adapter tube are arranged side by side in The side of valve body, the D1 adapter tube, D2 adapter tube are arranged side by side in the other side of valve body.

6. four-way reversing valve as described in claim 1, it is characterised in that: it is separately installed with control valve on each second adapter tube, and The open and-shut mode of each control valve is corresponding to sliding block working position.

7. four-way reversing valve as claimed in claim 2, it is characterised in that: the side wall of the D1 adapter tube and the side wall of D2 adapter tube It is respectively equipped with the first capillary, the second capillary that conducting is correspondingly connected with pilot valve.

8. four-way reversing valve as claimed in claim 7, it is characterised in that: the pilot valve be equipped with by three-way connection tube with First capillary and the second capillary form the third capillary of on state.

9. four-way reversing valve as claimed in claim 2, it is characterised in that: the D1 adapter tube side wall is connected with to be taken over to be formed with D2 The D12 connecting tube of on state, the pilot valve are equipped with the third capillary being conducted with D12 connecting tube.

10. a kind of refrigeration system, including compressor, outdoor unit, electric expansion valve, indoor units, it is characterised in that: further include Four-way reversing valve as described in any one of claims 1 to 9, the four-way reversing valve respectively with compressor, outdoor unit, interior Unit connection, second adapter tube and compressor and company.