CN213335683U

CN213335683U - Phase-change cold accumulation heat exchanger

Info

Publication number: CN213335683U
Application number: CN202020613482.9U
Authority: CN
Inventors: 周定山; 祝新生; 江再宽; 朱君
Original assignee: Suzhou Aode High End Equipment Co ltd
Current assignee: Suzhou Aode High End Equipment Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-06-01
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a phase transition cold-storage heat exchanger, including the barrel, the barrel is equipped with many heat exchanger tube bundles and many baffling boards, and barrel one end still is equipped with the end cover, and the barrel skin is equipped with the phase transition dielectric layer, and the phase transition dielectric layer outside is equipped with the heat preservation, and the heat preservation outside is equipped with the heat exchanger casing, and heat exchanger casing one end is equipped with cold side export and cold side import respectively, and heat exchanger casing upper end is equipped with hot side export and hot side import respectively, and heat exchanger casing lower extreme. The utility model has the advantages that: the phase-changeable energy storage technology is added into the heat exchanger, so that the matched compressor has less starting and stopping times, the phase-changeable medium inside the heat exchanger has isothermal phase change, stable operation temperature, small fluctuation and high energy density in unit volume in the heat exchange process, the volume of the equipment can be greatly reduced, the service life of the matched compressor is prolonged, and the reliability is high.

Description

Phase-change cold accumulation heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field specifically is a phase change cold-storage heat exchanger.

Background

The oil gas condensation recovery refrigerating device is mainly used for tertiary recovery of a gas station, and has the principle that a low-temperature evaporator and oil gas exchange heat to condense the oil gas into liquid gasoline so as to avoid direct emission of the oil gas, and meanwhile, the oil gas condensation recovery refrigerating device has environmental protection and good economic benefit.

The heat exchanger used in the oil gas condensation recovery refrigerating device generally adopts an indirect heat exchanger, the cold side is low-temperature low-pressure Freon, and the hot side is oil gas. In some applications, such as gas stations, condensation of oil and gas is not continuous but intermittent, thus requiring intermittent operation of the refrigerator.

Because of the oil return requirement of the compressor, the two-time starting time of the compressor generally needs more than three minutes, which has adverse effects on the temperature control precision and the condensation recovery effect of the intermittent operation of oil gas; another solution is to bypass the hot gas to control the temperature, and the compressor is not stopped, which also has the adverse effect of wasting electric energy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a phase change cold-storage heat exchanger to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a phase transition cold-storage heat exchanger, includes the barrel, transversely be equipped with many heat exchanger tube bundles in the barrel, vertically be equipped with many baffling boards, barrel one end still is equipped with the end cover, the barrel skin is equipped with the phase transition dielectric layer, the phase transition dielectric layer outside is equipped with the heat preservation, the heat preservation outside is equipped with the heat exchanger casing, the heat exchanger casing is kept away from the other end of end cover is equipped with cold side export and cold side import respectively, heat exchanger casing upper end is equipped with hot side export and hot side import respectively, heat exchanger casing lower extreme still is equipped.

Preferably, a plurality of cylinder supports are further arranged on two sides of the discharge port at the lower end of the heat exchanger shell, and the cylinder supports penetrate through the heat exchanger shell and are fixedly connected with the cylinders.

Preferably, the hot side inlet is an oil gas medium inlet, and the cold side inlet is a freon medium inlet.

Preferably, the hot side inlet is a large channel for reducing flow pressure drop, and a liquid storage tank and a liquid discharge port are further arranged at the hot side inlet.

Preferably, an interlayer structure is arranged between the outside of the cylinder and the heat insulation layer, the phase change medium layer is arranged in the interlayer structure, and the interlayer structure is provided with a reserved expansion volume position.

Preferably, the top of the sandwich structure is also provided with an automatic exhaust structure.

Preferably, the heat insulation layer is a polyurethane foaming heat insulation layer.

Advantageous effects

The utility model provides a but phase transition cold-storage heat exchanger adds phase transition energy storage technique in the heat exchanger, can make supporting compressor less start-stop number of times, the inside phase transition medium isothermal phase change of heat exchanger among the heat transfer process, operating temperature is stable, and is undulant little, and energy density is high in the unit volume, can reduce the volume of equipment by a wide margin, prolongs the life of supporting compressor, and the reliability is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals

1-cylinder, 2-heat exchange tube bundle, 3-baffle plate, 4-end cover, 5-phase change medium layer, 6-heat insulation layer, 7-hot side outlet, 8-hot side inlet, 9-cold side outlet, 10-cold side inlet, 11-discharge port, 12-cylinder support and 13-shell.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Examples

As shown in fig. 1, a phase change cold accumulation heat exchanger comprises a cylinder 1, a plurality of heat exchange tube bundles 2 are transversely arranged in the cylinder 1, a plurality of baffle plates 3 are longitudinally arranged, an end cover 4 is further arranged at one end of the cylinder 1, a phase change medium layer 5 is arranged on the outer layer of the cylinder 1, a heat preservation layer 6 is arranged on the outer side of the phase change medium layer 5, a heat exchanger shell 13 is arranged on the outer side of the heat preservation layer 6, a cold side outlet 9 and a cold side inlet 10 are respectively arranged at the other end, far away from the end cover 4, of the heat exchanger shell 13, a hot side outlet 7 and a hot.

Preferably, a plurality of cylinder supports 12 are further arranged at the lower end of the heat exchanger shell 13 and positioned at two sides of the discharge port 11, and the plurality of cylinder supports 12 penetrate through the heat exchanger shell 13 to be fixedly connected with the cylinder 1.

Preferably, the hot side inlet 8 is an oil gas medium inlet, and the cold side inlet 10 is a freon medium inlet.

Preferably, the hot side inlet 8 is a large channel for reducing flow pressure drop, and a liquid storage tank and a liquid discharge port are further arranged at the hot side inlet 8.

Preferably, an interlayer structure is arranged between the outside of the cylinder body 1 and the heat preservation layer 6, a phase change medium layer 5 is arranged in the interlayer structure, and the interlayer structure is provided with a reserved expansion volume position.

Preferably, the heat insulation layer 6 is a polyurethane foam heat insulation layer.

The heat exchanger is applied to an oil gas condensation recovery refrigerating device, and a phase change cold accumulation technology is added on the basis of the prior art, so that the requirement of intermittent work can be met, the joint action with an oil gas pipeline is facilitated, and the quick refrigeration is easy to realize;

by adding the phase-changeable energy storage technology into the heat exchanger, the matched compressor has less starting and stopping times, the isothermal phase change of the phase-change medium in the heat exchanger in the heat exchange process, stable operation temperature, small fluctuation and high energy density in unit volume, the volume of the equipment can be greatly reduced, the service life of the matched compressor is prolonged, and the reliability is high.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the protection scope of the present invention.

Claims

1. The utility model provides a phase transition cold-storage heat exchanger, includes barrel (1), its characterized in that: the heat exchanger is characterized in that a plurality of heat exchange tube bundles (2) are transversely arranged in the cylinder body (1), a plurality of baffle plates (3) are longitudinally arranged, an end cover (4) is further arranged at one end of the cylinder body (1), a phase change medium layer (5) is arranged on the outer layer of the cylinder body (1), a heat insulation layer (6) is arranged on the outer side of the phase change medium layer (5), a heat exchanger shell (13) is arranged on the outer side of the heat insulation layer (6), the heat exchanger shell (13) is far away from the other end of the end cover (4) and is respectively provided with a cold side outlet (9) and a cold side inlet (10), a hot side outlet (7) and a hot side inlet (8) are respectively.

2. The phase change cold storage heat exchanger of claim 1, wherein: the lower end of the heat exchanger shell (13) is positioned on two sides of the discharge port (11) and is also provided with a plurality of cylinder supports (12), and the plurality of cylinder supports (12) penetrate through the heat exchanger shell (13) and are fixedly connected with the cylinder (1).

3. The phase change cold storage heat exchanger of claim 1, wherein: the hot side inlet (8) is an oil-gas medium inlet, and the cold side inlet (10) is a Freon medium inlet.

4. The phase change cold storage heat exchanger of claim 3, wherein: the hot side inlet (8) is a large channel and used for reducing flow pressure drop, and a liquid storage tank and a liquid discharge port are further arranged at the hot side inlet (8).

5. The phase change cold storage heat exchanger of claim 1, wherein: an interlayer structure is arranged between the outside of the barrel body (1) and the heat preservation layer (6), the phase change medium layer (5) is arranged in the interlayer structure, and the interlayer structure is provided with a reserved expansion volume position.

6. The phase change cold storage heat exchanger of claim 5, wherein: and the top of the sandwich structure is also provided with an automatic exhaust structure.

7. The phase change cold storage heat exchanger of claim 1, wherein: the heat-insulating layer (6) is a polyurethane foaming heat-insulating layer.