CN206787348U - Shell and tube exchanger and the air-conditioning system using shell and tube exchanger - Google Patents

Abstract

Shell and tube exchanger, including cylinder and the tube bank that is arranged on the downside of cylinder, the air entry of connection compressor is offered on the upside of cylinder；Also include the baffle plate being arranged in cylinder, baffle plate includes bottom plate and a pair of side plates being connected with bottom plate, and side plate is arranged on the length direction of bottom plate, and the direction of side plate towards air entry is upwardly extended, and gap is formed between the upper edge of side plate and air entry；Side plate includes Part I and Part II, and Part I is correspondingly arranged at the lower section of air entry, and Part II is distributed in Part I both sides, and Part II offers at least one draining hole.Also disclose a kind of air-conditioning system.The utility model passes through baffle plate and the matching relationship of air entry; it is effectively prevented from compressor suction liquid refrigerant; the gaseous refrigerant away from air entry can also be guided to flow simultaneously; so as to overcome the contradiction between shell and tube exchanger middle cylinder body volume, liquid level and compressor protection, the practicality of small size cylinder is improved.

Description

Shell and tube exchanger and the air-conditioning system using shell and tube exchanger

Technical field

Air conditioner technical field is the utility model is related to, more particularly to a kind of shell and tube exchanger and one kind use shell The air-conditioning system of pipe heat exchanger.

Background technology

Shell and tube exchanger is a kind of heat exchange conduction device, by several portions such as cylinder, tube sheet, tube bank, baffle plate and casing It is grouped into.As a rule, in shell and tube exchanger, one group of tube bank or coil pipe are arranged on cylinder side, carry out heat exchange Two media, one kind flowed in tube bank, and in another cylinder outside pipe, heat transfer is carried out by tube wall.Shell-tube type Heat exchanger is generally horizontal type structure.

When shell and tube exchanger is used as evaporator, the air entry of connection compressor, compressor are offered on the upside of cylinder Gaseous refrigerant is sucked from air entry.In cylinder, gaseous refrigerant is distributed in position relatively top in cylinder, liquid refrigeration Agent is distributed in cylinder with respect to position on the lower.If the small volume of cylinder, the liquid level of liquid refrigerant is of a relatively high, compression One piece of suction compressor of liquid refrigerant may be caused the impact to compressor, very during machine suction gaseous refrigerant To damage compressor.In order to solve the above problems, two ways is provided in the prior art.The first is the body of increase cylinder Product, reduce the liquid level of liquid refrigerant.Foot of the set location of tube bank in evaporator tube.This mode evaporator Barrel diameter it is too big, tube bank and cylinder top leave very big space, reduce the overall utilization rate of cylinder.Another way To increase by one piece of baffle plate substantially suitable with air suction area below air entry.But due to the limited area of baffle plate, if The suction of compressor is larger, can not still avoid liquid refrigerant from entering compressor.Simultaneously.Range compress machine air entry is relatively distant The flowing velocity for the gaseous refrigerant put is slower, does not flow even, therefore can not successfully suck compressor, reduces heat exchange effect Fruit.

The content of the invention

The utility model aims to provide a kind of brand-new structure, it is intended to while avoiding compressor suction liquid refrigerant, Improve heat exchange efficiency.

The utility model provides a kind of shell and tube exchanger, including cylinder and the tube bank that is arranged on the downside of cylinder, described The air entry of connection compressor is offered on the upside of cylinder；Characterized in that, also include the baffle plate being arranged in the cylinder, it is described Baffle plate includes bottom plate and a pair of side plates being connected with the bottom plate, and the side plate is arranged on the length direction of the bottom plate, described The direction of side plate towards the air entry is upwardly extended, and gap is formed between the upper edge of the side plate and the air entry；Institute Stating side plate includes Part I and Part II, and the Part I is correspondingly arranged at the lower section of the air entry, and described second Part is distributed in the Part I both sides, and the Part II offers at least one draining hole.

Further, the length of the baffle plate is consistent with the barrel lenght of the cylinder.

Further, the air entry deviates the center line setting of the cylinder；The width of the bottom plate from both ends Two width gradual changes are reduced to the first width, and the width of the bottom plate below the air entry is the first width.

Further, multiple draining holes are offered on the Part II, the draining hole is distributed in the side of the side plate The side of edge and the Part I is between, and the length of the draining hole is from the side of the side plate along to described first The side edge divided is gradually reduced.

Further, the length of the Part I is less than the length of any side Part II, and is more than any one The length of the draining hole.

Further, the tube bank is inclined on the outside of the cylinder.

Preferably, the inclination angle of the tube bank is more than 0.5 ° and less than 3 °.

, can be by baffle plate and the matching relationship of air entry, effectively in shell and tube exchanger disclosed in the utility model Ground avoids compressor from sucking liquid refrigerant, while the gaseous refrigerant away from air entry can also be guided to flow, so as to overcome Contradiction between shell and tube exchanger middle cylinder body volume, liquid level and compressor protection, improve the reality of small size cylinder The property used.

Also disclose a kind of air-conditioning system, including shell and tube exchanger, the shell and tube exchanger include cylinder and The tube bank being arranged on the downside of cylinder, the cylinder upside offer the air entry of connection compressor；Characterized in that, also include setting The baffle plate in the cylinder is put, the baffle plate includes bottom plate and a pair of side plates being connected with the bottom plate, and the side plate is set In the length direction of the bottom plate, the direction of the side plate towards the air entry upwardly extends, the upper edge of the side plate and Gap is formed between the air entry；The side plate includes Part I and Part II, and the Part I is correspondingly arranged at The lower section of the air entry, the Part II are distributed in the Part I both sides, and the Part II offers at least one Individual draining hole.

Air-conditioning system disclosed in the utility model has the advantages of heat exchange efficiency is high.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of structural representation of embodiment of shell and tube exchanger disclosed in the utility model；

Fig. 2 is Fig. 1 top view；

Fig. 3 is the structural representation of shell and tube exchanger another kind embodiment disclosed in the utility model.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to The scope of the utility model protection.

Shown in Figure 1 is a kind of structural representation of embodiment of shell and tube exchanger disclosed in the utility model.Such as Shown in figure, the shell and tube exchanger disclosed in the present embodiment includes cylinder 1, and the outside lower portion of cylinder 1, which surrounds, is provided with pipe Beam 2.As illustrated, the refrigerant in cylinder 1, it is correspondingly arranged that the position of tube bank 2 is substantially liquid, and remainder is essentially gas State, the gaseous coolant area and liquid refrigerants area of upside are broadly divided into cylinder 1, is therebetween liquid refrigerant liquid level.Cylinder 1 Upside offer connection compressor air entry 3, air entry 3 be preferably offset by cylinder 1 center line set.As shown in figure 1, In the present embodiment, air entry 3 is arranged on the right side of the center line of cylinder 1.The gaseous state system that compressor is sucked in cylinder 1 from air entry 3 Cryogen.It is entirely different with prior art, in the present embodiment, be provided with baffle plate 4 in cylinder 1, baffle plate 4 include bottom plate 42 and with bottom A pair of side plates 41 that plate 42 connects.Side plate 41 and bottom plate 42 are preferably integrally formed.Length direction of a pair of side plates 41 along bottom plate 42 It is symmetrical arranged.The direction of side plate 41 towards air entry 3 upwardly extends.Gap is formed between the upper edge of side plate 41 and air entry 3 5.Gaseous refrigerant flows into air entry 3 by gap 5.

For a more specific step, side plate 41 includes Part I 41-1 and Part II 41-2.Part I 41-1's sets Seated position corresponds to the lower section of air entry 3.Definition is length direction parallel to the axially direction of cylinder 1.First of side plate 41 41-1 length is divided to be more than the diameter of air entry 3, the Part I 41-1 of side plate 41 is complete.The Part II of side plate 41 41-2 is distributed in the left and right sides of Part I 41-1 along its length.At least one draining hole is offered on Part II 41-2 41-0, multiple draining hole 41-0 are preferably offered, when compressor sucks gaseous refrigerant, gaseous refrigerant is from multiple draining holes The gap 5 that 41-0 is flowed between baffle plate 4 and air entry 3, and further flow into air entry 3.By the barrier effect of baffle plate 4, with The suction that compressor is applied by air entry 3, which forms to act on gaseous refrigerant, makes a concerted effort, and the direction made a concerted effort is roughly parallel to It refrigerant liquid level, can effectively guide the gaseous refrigerant of any position in cylinder 1 to flow, improve heat exchange efficiency.

The risk of compressor is flowed into for reduction liquid refrigerant, in the present embodiment the length of baffle plate 4 and the length one of cylinder 1 Cause.The length of cylinder 1 described herein, refer to the inner length of cylinder 1, the length not including both sides tube sheet, flange.In this implementation In example, while following improvement is made to the shape of bottom plate 42 of baffle plate 4.As seen in the overhead view, define parallel to the radial direction of cylinder 1 Direction is width, and bottom plate 42 is substantially in the narrower funnel type in the wider centre in both ends.Specifically, the width of bottom plate 42 is from two Second width gradual change at end is reduced to the first width, and the width positioned at the bottom plate 42 of the lower section of air entry 3 is the first width, i.e., corresponding The position of air entry 3, baffle plate 4 has most narrow width, and the side plate 41 of the both sides of bottom plate 42 does not offer draining hole 41-0, from And it is effectively prevented from liquid refrigerant and flows into compressor.

As illustrated, be a Part II 41-2 between the left end of side plate 41 and Part I 41-1 left end, side plate It is another Part II 41-2 between 41 right-hand member and Part I 41-1 right-hand member.Offered respectively on Part II 41-2 Multiple draining hole 41-0, in order to effectively guide the flowing of the gaseous refrigerant away from air entry 3 in cylinder 1, draining hole 41- 0 length is gradually reduced from the side of side plate 41 along to Part I 41-1 sorrowful edge.Preferably, Part I 41-1 length Length of the degree less than any side Part II 41-2, simultaneously greater than any one draining hole 41-0 length.

, can be by baffle plate and the matching relationship of air entry, effectively in the shell and tube exchanger disclosed in the present embodiment Ground avoids compressor from sucking liquid refrigerant, while the gaseous refrigerant away from air entry can also be guided to flow, so as to overcome Contradiction between shell and tube exchanger middle cylinder body volume, liquid level and compressor protection, improve the reality of small size cylinder The property used.

Further, another embodiment of shell and tube exchanger disclosed in the utility model is illustrated in figure 3, in shell , it is necessary to thoroughly discharge the water in clean machine set system in the regular maintenance procedure of pipe heat exchanger, keep restraining 2, cylinder 1 The regions such as end face of flange keep drying, reduce the corrosion to equipment.It is therefore preferable that tube bank 2 is inclined at the outside of cylinder 1. The inclination alpha of tube bank 2 is more than 0.5 ° and is less than 3 °.When safeguarding, water under gravity, can quickly flow out tube bank 2 and by opening The corrosion for totally, slowing down tube bank 2 is discharged in the dewatering outlet 5 being located on cylinder 1, improves unit service life.

The utility model also discloses a kind of air-conditioning system, using the package disclosed in any one embodiment as described above Formula heat exchanger.The structure of shell and tube exchanger refers to the detailed description of above-described embodiment, and the detailed of Figure of description is retouched Paint, will not be repeated here.Same technique effect can be reached using the air-conditioning system of shell and tube exchanger.

Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that： It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc. With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology The spirit and scope of scheme.

Claims (8)

1. a kind of shell and tube exchanger, including cylinder and the tube bank that is arranged on the downside of cylinder, the company of offering on the upside of the cylinder The air entry of logical compressor；Characterized in that, also include being arranged on baffle plate in the cylinder, the baffle plate include bottom plate and with A pair of side plates of bottom plate connection, the side plate are arranged on the length direction of the bottom plate, and the side plate is towards the air-breathing The direction of mouth is upwardly extended, and gap is formed between the upper edge of the side plate and the air entry；The side plate includes first Point and Part II, the Part I be correspondingly arranged at the lower section of the air entry, the Part II is distributed in described the A part of both sides, the Part II offer at least one draining hole.

2. shell and tube exchanger according to claim 1, it is characterised in that the length of the baffle plate and the cylinder of the cylinder Body length is consistent.

3. shell and tube exchanger according to claim 2, it is characterised in that the air entry deviates the center of the cylinder Line is set；The width of the bottom plate is reduced to the first width from second width gradual change at both ends, below the air entry The width of the bottom plate is the first width.

4. shell and tube exchanger according to claim 3, it is characterised in that multiple drainages are offered on the Part II Mouthful, the draining hole is distributed in the side edge of the side plate and the side of the Part I between, the length of the draining hole Spend and be gradually reduced from the side of the side plate along to the side of Part I edge.

5. shell and tube exchanger according to claim 4, it is characterised in that the length of the Part I is less than any one The length of side Part II, and more than the length of any one of draining hole.

6. according to the shell and tube exchanger described in any one of claim 1 to 5, it is characterised in that the tube bank is inclined at On the outside of the cylinder.

7. shell and tube exchanger according to claim 6, it is characterised in that the inclination angle of the tube bank is more than 0.5 ° and is less than 3°。

8. a kind of air-conditioning system, it is characterised in that including the shell and tube exchanger as described in any one of claim 1 to 7.