CN208012164U - A kind of refrigerant secondary distribution structure and heat exchanger - Google Patents
A kind of refrigerant secondary distribution structure and heat exchanger Download PDFInfo
- Publication number
- CN208012164U CN208012164U CN201820061131.4U CN201820061131U CN208012164U CN 208012164 U CN208012164 U CN 208012164U CN 201820061131 U CN201820061131 U CN 201820061131U CN 208012164 U CN208012164 U CN 208012164U
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- refrigerant
- secondary distribution
- tube sheet
- heat exchanger
- guide face
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Abstract
The utility model discloses a kind of refrigerant secondary distribution structure and heat exchangers, including the end plate and tube sheet being fixed together, the tube sheet is connected with several heat exchanger tubes, refrigerant secondary distribution chamber there are one being set between the end plate and tube sheet, the refrigerant secondary distribution intracavitary is equipped with the guide face of tilted upward setting, and the lower part of the guide face is close apart from tube sheet, top is remote apart from tube sheet, after refrigerant flows into the lower part of refrigerant secondary distribution chamber, changed by guide face and flow to, refrigerant flows away along heat exchanger tube in flow process upward.The technical solution adopted in the utility model, after refrigerant flows into the lower part of refrigerant secondary distribution chamber, changed by guide face and flows to, refrigerant flows away along heat exchanger tube in flow process upward, and quality is gradually lost, but because section is similarly gradually reduced, two-phase refrigerant flow speed is basically unchanged, it remains unchanged to the static pressure of tube sheet, the liquid measure in refrigerant infeed heat exchanger tube is therefore constant, achievees the effect that respectively.
Description
Technical field
The utility model is related to air-conditioning technicals, and in particular to heat exchanger.
Background technology
The primary distribution of dry evaporator has done many primary studies, including flow-stopping plate, orifice plate, capillary etc. in industry
Deng U-shaped tubular evaparator is just much of that using primary distribution, but for straight tube evaporator, two flow of generally use is first-class
The refrigerant of journey enters rear chamber there is still a need for turning again to enter second procedure, this process may still cause gas-liquid separation, influence
The refrigerant of second procedure distributes, and causes effective intraductal heat exchange area loss, influences heat exchange efficiency.
To solve the problems, such as this secondary distribution, there is engineer to do some researchs in industry, by the form of refrigerant cavity
Change, such as by cavity metalworking milling at arc surface, refrigerant is changed liquid refrigerants input top by the guiding role of arc surface
Heat pipe has the effect of certain reduction two-phase laminated flow.But since cavity is not complete circular arc, extremely difficult, knot is made
Die sinking is needed to cast in the case of structure complexity, it can not volume production.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of heat exchanger refrigerant secondary distribution structure, structure
Simply, facilitate making, solve the problems, such as refrigerant secondary distribution.
In order to solve the above technical problems, the utility model adopts the following technical solution：A kind of refrigerant secondary distribution structure,
Including the end plate and tube sheet being fixed together, the tube sheet is connected with several heat exchanger tubes, and one is equipped between the end plate and tube sheet
A refrigerant secondary distribution chamber, the refrigerant secondary distribution intracavitary are equipped with the guide face of tilted upward setting, and the guide face
Lower part it is close apart from tube sheet, top is remote apart from tube sheet, refrigerant flow into refrigerant secondary distribution chamber lower part after, changed by guide face
Become flow direction, refrigerant flows away along heat exchanger tube in flow process upward.
Preferably, one block baffle directly is installed to form the guide face in refrigerant secondary distribution intracavitary.
Preferably, the angle of inclination of the baffle is between 5~20 °.
Preferably, the baffle is the circular slab that arc gap is arranged in lower part.
Preferably, the baffle is made of one block of steel plate.
Preferably, the baffle welding is mounted on refrigerant secondary distribution intracavitary.
Preferably, the guide face is directly processed on end plate.
The utility model additionally provides a kind of heat exchanger, is equipped with above-mentioned refrigerant secondary distribution structure.
The technical solution adopted in the utility model, sets that there are one the water conservancy diversion that are obliquely installed in refrigerant secondary distribution intracavitary
Face after refrigerant flows into the lower part of refrigerant secondary distribution chamber, is changed by guide face and flows to, refrigerant is suitable in flow process upward
Heat exchanger tube to flow away, quality is gradually lost, but because section is similarly gradually reduced, two-phase refrigerant flow speed is basically unchanged,
It remains unchanged to the static pressure of tube sheet, the liquid measure in refrigerant infeed heat exchanger tube is therefore constant, achievees the effect that respectively, and structure
Simply, facilitate making, solve the problems, such as that refrigerant secondary uniform is distributed.
Description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural schematic diagram of the heat exchanger of the utility model；
Fig. 2 is the structural schematic diagram one of end plate where refrigerant secondary distribution chamber；
Fig. 3 is the structural schematic diagram two of end plate where refrigerant secondary distribution chamber.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
Embodiment one, as shown in Figure 1, a kind of heat exchanger refrigerant secondary distribution structure, including the end plate 3 that is fixed together
With tube sheet 2, the tube sheet 2 is connected with several heat exchanger tubes 13, is set between the end plate 3 and tube sheet 2 there are one secondary point of refrigerant
With chamber 34, the refrigerant secondary distribution intracavitary be equipped with tilted upward setting guide face 35, and the lower part of the guide face 35 away from
Close from tube sheet, top is remote apart from tube sheet, therefore, as shown in Fig. 2, after refrigerant flows into the lower part of refrigerant secondary distribution chamber, quilt
Guide face 35 changes flow direction, and refrigerant flows away along heat exchanger tube 13 in flow process upward, and quality is gradually lost, but because of section
It is equally gradually reduced, two-phase refrigerant flow speed is basically unchanged, and is remained unchanged to the static pressure of tube sheet, and refrigerant feeds heat exchanger tube
Interior liquid measure is therefore constant, achievees the effect that respectively, and guide face is obliquely installed, but also refrigerant secondary distribution chamber top
Space reduces, and the injection amount of gaseous coolant is reduced, and inhibiting effect is played to two-phase gas-liquid separation state.
The present embodiment is preferred, directly installs a block baffle in refrigerant secondary distribution intracavitary to form the guide face.
Specifically, the baffle is made of one block of steel plate, steel plate thickness 2-6mm, and is welded and be mounted on refrigerant secondary distribution chamber
Interior, baffle materials are simple, at low cost and easy for installation.
Refering to what is shown in Fig. 3, the baffle is the circular slab that arc gap is arranged in lower part, with refrigerant secondary distribution cavity phase
Hold.Wherein, the angle of inclination of baffle is preferably between 5~20 °.It is formed with tube sheet according to the internal circulating load of two phase refrigerant and steel plate
Channel cross-sectional area be calculated, water conservancy diversion effect is best.
Certainly, it will be appreciated by persons skilled in the art that described lead can also directly be processed directly on end plate
Stream interface such as mills out guide face, or goes out guide face using cast type end plate straight forming.
Embodiment two, as shown in Figure 1, a kind of heat exchanger, including cylinder 1, it is set to the tube sheet 2 and end plate 3 of barrel end, with
And the heat exchanger tube 13 in cylinder, it is set to inlet 11 and the gas outlet 12 on cylinder top, under the first end of the heat exchanger
Portion is equipped with admission chamber 31 between tube sheet 2 and end plate 3, and admission chamber 31 connects two phase refrigerant import 32, and the first of the heat exchanger
The top connection fluorine steam (vapor) outlet 33 at end.The second end of the heat exchanger is equipped with the refrigerant secondary distribution knot in above-described embodiment one
Structure.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Range as defined in the claims.
Claims (8)
1. a kind of refrigerant secondary distribution structure, including the end plate and tube sheet that are fixed together, the tube sheet are connected with several change
Heat pipe is set between the end plate and tube sheet there are one refrigerant secondary distribution chamber, it is characterised in that：The refrigerant secondary distribution
Intracavitary is equipped with the guide face of tilted upward setting, and the lower part of the guide face is close apart from tube sheet, and top is remote apart from tube sheet, refrigerant
Flow into refrigerant secondary distribution chamber lower part after, by guide face change flow to, upward in flow process refrigerant along heat exchanger tube
It flows away.
2. a kind of refrigerant secondary distribution structure according to claim 1, it is characterised in that：Directly in secondary point of refrigerant
One block baffle is installed to form the guide face with intracavitary.
3. a kind of refrigerant secondary distribution structure according to claim 2, it is characterised in that：The angle of inclination of the baffle
Between 5~20 °.
4. a kind of refrigerant secondary distribution structure according to claim 2, it is characterised in that：The baffle is arranged for lower part
The circular slab of arc gap.
5. a kind of refrigerant secondary distribution structure according to claim 2, it is characterised in that：The baffle uses one block of steel
Plate is made.
6. a kind of refrigerant secondary distribution structure according to claim 5, it is characterised in that：The baffle welding is mounted on
Refrigerant secondary distribution intracavitary.
7. a kind of refrigerant secondary distribution structure according to claim 1, it is characterised in that：It is directly processed on end plate
The guide face.
8. a kind of heat exchanger, it is characterised in that：Equipped with the refrigerant secondary distribution structure described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061131.4U CN208012164U (en) | 2018-01-15 | 2018-01-15 | A kind of refrigerant secondary distribution structure and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061131.4U CN208012164U (en) | 2018-01-15 | 2018-01-15 | A kind of refrigerant secondary distribution structure and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012164U true CN208012164U (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820061131.4U Active CN208012164U (en) | 2018-01-15 | 2018-01-15 | A kind of refrigerant secondary distribution structure and heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446894A (en) * | 2021-04-19 | 2021-09-28 | 中国矿业大学 | Refrigerant distribution device of wound heat exchanger |
-
2018
- 2018-01-15 CN CN201820061131.4U patent/CN208012164U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446894A (en) * | 2021-04-19 | 2021-09-28 | 中国矿业大学 | Refrigerant distribution device of wound heat exchanger |
| CN113446894B (en) * | 2021-04-19 | 2022-06-07 | 中国矿业大学 | Refrigerant distribution device of wound heat exchanger |
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