CN202215792U

CN202215792U - Slide valve type self-operated three-way change valve

Info

Publication number: CN202215792U
Application number: CN 201120323333
Authority: CN
Inventors: 王定军; 孙健
Original assignee: Zhejiang DunAn Hetian Metal Co Ltd
Current assignee: Zhejiang DunAn Hetian Metal Co Ltd
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-05-09
Anticipated expiration: 2021-08-31

Abstract

The utility model discloses a slide valve type self-operated three-way change valve, which comprises a valve body, a compressor connecting pipe, an evaporator connecting pipe, a condenser connecting pipe, a slide block, a connecting rod, a first piston, a second piston, a spring device, a high pressure capillary and a low pressure capillary, wherein a valve cover and a spring end cover are arranged at two ends of the valve body respectively. The compressor connecting pipe, the evaporator connecting pipe and the condenser connecting pipe are welded on the valve body, the slide block is fixed through the connecting rod, and the first piston and the second piston are located at two ends of the connecting rod to divide the inside of the valve body into three chambers. The spring device is located between the second piston and the spring end cover, the compressor connecting pipe is communicated with a chamber between the end cover and the first piston through the high pressure capillary, the evaporator connecting pipe is communicated with a chamber between the spring end cover and the second piston through the low pressure capillary, and the compressor connecting pipe is arranged above the slide block. The slide valve type self-operated three-way change valve has the advantages of being small in leakage quantity, good in energy-saving effect and high in operational reliability.

Description

A kind of sliding valve style self-operated three-way reversing valve

Technical field:

The utility model relates to the fluid control valve technical field, especially relates to the self-operated three-way reversing valve that uses in heat pipe/both vapor compression compound-refrigerating air-conditioning unit.

Background technique:

In existing various automatic diverter valves, publication number is that the Chinese patent of CN101245864 discloses and a kind ofly is used for refrigerant circulation and with the self-operated three-way valve of type machine room special machine, and this three-way valve is located at the relief opening of refrigeration compressor below the slide block; When compressor start; Under the effect of pulsing airflow,, cause the interior leakage quantity of self-operated three-way valve bigger easily with slide block jack-up; Three passages communicate easily simultaneously in the process of slide block movement simultaneously, form the endless loop problem.

The model utility content:

The purpose of the utility model provides a kind of new sliding valve style self-operated three-way reversing valve with regard to being the deficiency that exists to existing technology, and it has, and leakage rate is little, good energy-conserving effect, characteristics that operational safety is high.

For realizing above-mentioned purpose, the sliding valve style self-operated three-way reversing valve of the utility model includes valve body, compressor adapter, vaporizer adapter, condenser adapter, slide block, connecting rod, first piston, second piston, spring assembly, high pressure capillary and low pressure capillary tube; Wherein, Two ends of valve body is respectively equipped with valve gap and spring end cap; Compressor is taken over, vaporizer is taken over and the condenser adapter is welded on the valve body, and slide block is fixed through connecting rod, and the first piston and second piston are positioned at the connecting rod two ends and valve inner is divided into three chambers; Spring assembly is between second piston and spring end cap; High pressure capillary is communicated with the chamber between compressor adapter and end cap and the first piston, and the low pressure capillary tube is communicated with the chamber between vaporizer adapter and the spring end cap and second piston, and described compressor is taken over and is arranged at the slide block top.

Preferred as technique scheme, the sealing surface of described slide block is greater than the valve seat orifice area on the valve body.

Preferred as technique scheme, described spring assembly includes pressure spring, spring seat, and wherein, spring seat contacts with second piston, and pressure spring is between spring seat and spring end cap.

Preferred as technique scheme, described spring assembly also includes the spring spool of guiding usefulness.

Preferred as technique scheme adopts bulb to ball-and-socket or bore the way of contact of nest between the spring seat of described spring assembly and second pistons end.

Preferred as technique scheme, the exterior siding of the spring seat of described spring assembly and second piston structure that is formed in one.

The beneficial effect of the utility model is: it is simple and compact for structure; When compressor start; Inlet air flow is taken over to get into by compressor and is pressed to slide block; Reduce the leakage of slide block in movement process, make heat pipe/both vapor compression compound-refrigerating air-conditioning unit have better energy-saving effect, reliability is higher simultaneously; In addition, the cooperation through slide block and valve seat orifice size can realize effective switching.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is done further explanation:

Fig. 1 is the utility model embodiment one a structural representation;

Fig. 2 is one of user mode schematic representation of the utility model (refrigeration cycle);

Fig. 3 is two (natural circulation) of the user mode schematic representation of the utility model;

Fig. 4 is the utility model embodiment two a structural representation;

Fig. 5 is the utility model embodiment three a structural representation;

Fig. 6 is the utility model embodiment three a user mode schematic representation;

Fig. 7 is the utility model embodiment four a structural representation;

Fig. 8 is the utility model embodiment five a structural representation;

Fig. 9 is the utility model embodiment six a structural representation.

Embodiment:

See that Fig. 1 to Fig. 9 shows: the sliding valve style self-operated three-way reversing valve of the utility model includes that valve body 10, compressor take over 21, vaporizer takes over 22, condenser takes over 23, slide block 30, connecting rod 40, first piston 51, second piston 52, spring assembly 60, high pressure capillary 71 and low pressure capillary tube 72; Wherein, The two ends of valve body 10 are respectively equipped with valve gap 11 and spring end cap 12, and compressor adapter 21, vaporizer adapter 22 and condenser are taken over 23 and be welded on the valve body 10, and slide block 30 is fixing through connecting rod 40; The first piston 51 and second piston 52 are positioned at connecting rod 40 two ends and valve body 10 inside are divided into three chambers; Spring assembly 60 is between second piston 52 and spring end cap 12, and high pressure capillary 71 is communicated with the chamber between compressor adapter 21 and end cap 11 and the first piston 51, and low pressure capillary tube 72 is communicated with the chamber between vaporizer adapter 22 and the spring end cap 12 and second piston 52; Compressor is taken over 21 and is arranged at slide block 30 tops; In the time of compressor start, inlet air flow is pressed to slide block 30, to reduce internal leakage.The sealing surface of slide block 30 is greater than the valve seat orifice area on the valve body 10, and behind compressor start, slide block 30 slides gradually, and the sealing surface of slide block 30 continues to slide and just can open the valve seat orifice on exhaust outlet of compressor and the valve body 10 after guaranteeing to close valve seat orifice fully.Certainly, the sealing surface of slide block 30 is equal to or slightly less than the area of valve seat orifice, also can realize the switching of three-way valve.

Spring assembly 60 includes pressure spring 61, spring seat 62, and wherein, spring seat 62 contacts with second piston 52, and pressure spring 61 is between spring seat 62 and spring end cap 12.See that spring assembly 60 can also include spring spool 63, with to pressure spring 61 starting leading roles, can certainly adopt spring end cap 12 to come pressure spring 61 lead (like Fig. 7 and shown in Figure 9); The exterior siding of the spring seat 62 and second piston 52 structure that is formed in one is to reduce production costs.In addition; See that Fig. 5 is to shown in Figure 7: adopt the way of contact of bulb between the spring seat 62 of spring assembly 60 and second piston, 52 ends to ball-and-socket or awl nest; Like this, under the not good situation of the perpendicularity of pressure spring 61, also can guarantee the flexibility of second piston, 52 motions.

The utility model adopts compressor to take over (being compressor exhaust pipe) 21 air inlets, pushes down slide block 30 through air-flow, guarantees stability and reliability that three-way diverter valve switches, realizes effective switching of no additional power.

In heat pipe shown in Figure 3/both vapor compression compound-refrigerating air-conditioning unit, when outdoor temperature was lower than room temperature, refrigeration compressor 105 quit work; Solenoid valve 103 is opened; Unit gets into natural circulation, and pressure spring 61 extends under the elastic force effect, promotes the first piston 51 and second piston 52 and in valve body 10, moves to left; Closely contact on the end face of valve gap 12 bottoms until first piston 51 tops, make vaporizer adapter 22 take over 23 conductings with condenser; At this moment; From vaporizer 104, evaporate the gaseous refrigerant that and take over 23 entering condensers 101 through vaporizer adapter 22, slide block 30, condenser; Condensed liquid is in solenoid valve 103 Returning evaporimeters 104; Accomplish the natural circulation temperature-fall period of refrigeration agent, through separate heat pipe with indoor transfer of heat in the lower outdoor environment of temperature.

When outdoor temperature raise, natural circulation can not satisfy lowered the temperature when requiring, and refrigeration compressor 105 starts, and solenoid valve 103 cuts out, and unit gets into refrigeration cycle, and the first piston 51 and second position of piston 52 in valve body 10 are as shown in Figure 2.Refrigeration compressor 105 gets into compressor and takes over 21 after the air-breathing supercharging from vaporizer 104; The elastic force that this moment, first piston 51 and second piston 52 overcame pressure spring 61 under the effect of high pressure gas moves right; Contact up to spring seat 62 and spring spool 63; Stop high pressure gas to get into vaporizer and take in 22, make compressor adapter 21 take over 23 conductings with condenser.At this moment; From vaporizer 104, absorb heat in the room and evaporate the gaseous refrigerant that through refrigeration compressor 105, compressor take over 21, valve body 10, condenser take over 23 and get into condensers 101; Condensed liquid is in throttling arrangement 102 Returning evaporimeters 104; Accomplish the refrigeration cycle temperature-fall period, through steam compression type refrigeration with the transfer of heat in the room in outdoor environment.

When outdoor temperature is reduced to room temperature when following, solenoid valve 103 is opened once more, and refrigeration compressor 105 quits work, and makes unit return to the nature circulation again.At this moment; Pressure spring 61 extends under the elastic force effect; Promoting the first piston 51 and second piston 52 moves to left in valve body 10; Closely contact on the end face of valve gap 12 bottoms until first piston 51 tops, make vaporizer adapter 22 take over 23 conductings, from vaporizer 104, evaporate the gaseous refrigerant that and take over 23 entering condensers 101 through vaporizer adapter 22, slide block 30, condenser with condenser; Condensed liquid turns back in the vaporizer 104 through solenoid valve 103, accomplishes the natural circulation temperature-fall period of refrigeration agent.

So move in circles, utilize the pressure reduction that opens, shuts down generation of refrigeration compressor in heat pipe/both vapor compression compound-refrigerating air-conditioning unit 105 self to change and the elastic force of pressure spring 61 realizes that the sliding valve style self-operated three-way reversing valve does not have the automatic reverse of additional power.

The above is merely the preferred embodiment of the utility model, does not therefore limit the protection domain of the utility model, and every equalization of doing according to the utility model changes with modifying and all belongs in the claim that the utility model contains.

Claims

1. a sliding valve style self-operated three-way reversing valve is characterized in that it includes valve body (10), compressor is taken over (21), vaporizer adapter (22), condenser adapter (23), slide block (30), connecting rod (40), first piston (51), second piston (52), spring assembly (60), high pressure capillary (71) and low pressure capillary tube (72); Wherein, The two ends of valve body (10) are respectively equipped with valve gap (11) and spring end cap (12); Compressor is taken over (21), vaporizer takes over (22) and condenser adapter (23) is welded on the valve body (10); Slide block (30) is fixing through connecting rod (40); First piston (51) and second piston (52) are positioned at connecting rod (40) two ends and valve body (10) inside are divided into three chambers, and spring assembly (60) is positioned between second piston (52) and the spring end cap (12), and the chamber that high pressure capillary (71) is taken over compressor between (21) and end cap (11) and the first piston (51) is communicated with; The chamber that low pressure capillary tube (72) is taken over vaporizer between (22) and spring end cap (12) and second piston (52) is communicated with, and described compressor is taken over (21) and is arranged at slide block (30) top.

2. sliding valve style self-operated three-way reversing valve according to claim 1 is characterized in that: the sealing surface of described slide block (30) is greater than the valve seat orifice area on the valve body (10).

3. sliding valve style self-operated three-way reversing valve according to claim 1 and 2; It is characterized in that: described spring assembly (60) includes pressure spring (61), spring seat (62); Wherein, Spring seat (62) contacts with second piston (52), and pressure spring (61) is positioned between spring seat (62) and the spring end cap (12).

4. sliding valve style self-operated three-way reversing valve according to claim 3 is characterized in that: described spring assembly (60) also includes the spring spool (63) of guiding usefulness.

5. sliding valve style self-operated three-way reversing valve according to claim 3 is characterized in that: adopt the way of contact of bulb to ball-and-socket or awl nest between the spring seat (62) of described spring assembly (60) and second piston (52) end.

6. sliding valve style self-operated three-way reversing valve according to claim 3 is characterized in that: the spring seat (62) of described spring assembly (60) and the exterior siding of second piston (52) structure that is formed in one.