CN-116907127-B - Condensing equipment

CN116907127BCN 116907127 BCN116907127 BCN 116907127BCN-116907127-B

Abstract

A condensing device comprises a first shell-pass cylinder body extending vertically, a heat exchange tube, a second shell-pass cylinder body extending vertically and at least sleeved on the periphery of the bottom of the first shell-pass cylinder body, a condensing and supercooling piece and a liquid storage cavity, wherein the lower end of the condensing and supercooling piece is provided with a condensing and supercooling channel extending vertically, the upper end of the condensing and supercooling channel is communicated with the first shell-pass outlet, a gap is formed between the peripheral wall of the condensing and supercooling channel and the inner peripheral wall of the first shell-pass cylinder body at intervals, a noncondensable gas outlet is formed in the position, above the condensing and supercooling piece, of the second shell-pass cylinder body, and the space, below the condensing and supercooling piece, of the second shell-pass cylinder body is used as the liquid storage cavity communicated with the lower end of the condensing and supercooling channel. Compared with the prior art, the invention has compact structure and can realize condensation, supercooling, gas-liquid separation and liquid storage functions in a smaller space.

Inventors

TAO JIANG
ZHANG XIANAN
WANG JIANLIANG
HU XINGMIAO
REN HONGLIANG
ZHAO ZHIYANG
MA HUILI
HUANG CHENYANG

Assignees

镇海石化建安工程股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230626

Claims (6)

1. A condensing apparatus comprising: a first shell-side cylinder (110) extending up and down, the upper part of which is provided with a shell-side inlet (111) for inputting shell-side medium to be condensed, and the lower end of which is opened as a first shell-side outlet (112) for outputting shell-side medium; The heat exchange tube (120) is axially arranged in the first shell side cylinder body (110); It is characterized in that the method also comprises the following steps: A second shell-side cylinder (130) extending up and down, at least the upper part of which is sleeved on the periphery of the bottom of the first shell-side cylinder (110); The condensing and supercooling piece (140) is arranged in the second shell-side cylinder (130) and below the first shell-side cylinder (110), the condensing and supercooling piece (140) is provided with a condensing and supercooling channel (141) extending up and down, the upper port of the condensing and supercooling channel (141) is communicated with the first shell-side outlet (112) of the first shell-side cylinder (110), and the outer peripheral wall of the condensing and supercooling channel (141) is opposite to the inner peripheral wall of the second shell-side cylinder (130) at intervals to form a gap (131); a noncondensable gas outlet (132) is arranged on the second shell-side cylinder (130) and above the condensation supercooling piece (140); The space of the second shell-side cylinder (130) below the condensation supercooling piece (140) is used as a liquid storage cavity (133) communicated with the lower port of the condensation supercooling channel (141), and the liquid storage cavity (133) is communicated with the non-condensable gas outlet (132) through the gap (131); the condensation supercooling channel (141) is spirally arranged from inside to outside; The condensation supercooling member (140) is provided with a central pipe (142) and a spiral plate (143), the central pipe (142) extends up and down, the upper port of the central pipe (142) is communicated with the lower pipe orifice of the heat exchange pipe (120), the lower port of the central pipe (142) is closed, the spiral plate (143) is arranged on the periphery of the central pipe (142), the spiral plate (143) is provided with two adjacent spiral channels which are wound clockwise or anticlockwise along the periphery, the first spiral channel (1431) is used as the condensation supercooling channel (141), the upper port and the lower port of the second spiral channel (1432) are closed, the inner port of the second spiral channel (1432) close to the central pipe (142) is communicated with the central pipe (142), and the side wall of the second shell side barrel (130) is provided with a first pipe side inlet connecting pipe (134) communicated with the outer port of the second spiral channel (1432) far from the central pipe (142); The heat exchange tubes (120) are at least two groups, wherein the lower end tube orifices of the first group of heat exchange tubes are communicated with the upper port of the central tube (142), the side wall of the first shell-side cylinder (110) is provided with a second tube-side inlet connecting tube (113) communicated with the lower end tube orifices of the second group of heat exchange tubes, and the second tube-side inlet connecting tube (113) is positioned above the condensation supercooling piece (140); the first helical channel (1431) having a central portion relatively close to the central tube (142) and a peripheral portion relatively far from the central tube (142); The lower port of the first shell-side cylinder (110) is opposite to and communicates with the upper port of the central portion of the first spiral channel (1431), and the periphery of the lower port of the first shell-side cylinder (110) extends horizontally outward to form a baffle (114) covering the upper port of the peripheral portion of the first spiral channel (1431).
2. The condensing apparatus of claim 1, characterized in that portions of said baffle (114) relatively far from said non-condensable gas outlet (132) extend outwardly to an inner peripheral wall of said second shell-side cylinder (130).
3. The condensing apparatus of claim 1, characterized in that the lower end of said first shell-side cylinder (110) is in the shape of a reverse cone.
4. A condensation device according to claim 3, wherein the side wall of the inverted cone is opposite the non-condensable gas outlet (132).
5. The condensing equipment according to any one of claims 1-4, characterized in that a second shell-side outlet (135) is provided at the bottom of said second shell-side cylinder (130).
6. The condensing apparatus of claim 5, wherein a first liquid level gauge (136) and a second liquid level gauge (137) are arranged on the side wall of the second shell-side cylinder (130), the first liquid level gauge (136) is arranged corresponding to the central part of the condensing and supercooling channel (141) in the up-down direction, and the second liquid level gauge (137) is arranged below the condensing and supercooling channel (141) and above the second shell-side outlet (135).

Description

Condensing equipment Technical Field The invention belongs to the technical field of heat exchange, and particularly relates to condensing equipment. Background The supercooling of the medium to be condensed usually needs to be condensed and cooled in a condenser, then the medium is input into a liquid storage tank for gas-liquid separation, the liquid after gas-liquid separation is stored in the liquid storage tank, and the noncondensable gas after gas-liquid separation is discharged. Whereas the supercooling of the medium to be condensed usually requires a secondary cooling, i.e. at least two condensers are required in series or the volume of the condensers is very large. And the existing liquid storage tank and the condenser are separately designed, so that the liquid storage tank usually needs to consider a larger gas-liquid separation space, a space for storing liquid and various connecting pipes, and the size of the liquid storage tank is huge. Therefore, the whole occupied area of the condensing equipment formed by combining the existing condensers and the liquid storage tank is large, the investment is large, and the pressure loss of the system is increased by the connecting pipeline between the two condensers and the connecting pipeline between the condensers and the liquid storage tank. Disclosure of Invention The invention aims to solve the technical problem of providing condensing equipment which has a compact structure and can realize condensation, supercooling, gas-liquid separation and liquid storage functions in a smaller space. The invention solves the technical problems by adopting the technical scheme that the condensing equipment comprises: A first shell-side cylinder extending up and down, the upper part of which is provided with a shell-side inlet for inputting shell-side medium to be condensed, and the lower end of which is opened to be used as a first shell-side outlet for outputting shell-side medium; the heat exchange tube is axially arranged in the first shell side cylinder; It is characterized in that the method also comprises the following steps: the second shell side cylinder body extends up and down, and at least the upper part of the second shell side cylinder body is sleeved on the periphery of the bottom of the first shell side cylinder body; The condensing and supercooling piece is arranged in the second shell-side cylinder and below the first shell-side cylinder, and is provided with a condensing and supercooling channel which extends up and down, and the upper port of the condensing and supercooling channel is communicated with the first shell-side outlet of the first shell-side cylinder; A non-condensable gas outlet is arranged on the second shell side cylinder body at a position above the condensing supercooling member; The space of the second shell-side cylinder body, which is positioned below the condensation supercooling piece, is used as a liquid storage cavity communicated with the lower port of the condensation supercooling channel, and the liquid storage cavity is communicated with the noncondensable gas outlet through the gap. Therefore, the design of the heat exchange tube can perform primary condensation on the shell side medium to be condensed, the shell side medium subjected to primary condensation performs secondary condensation and gas-liquid separation in the condensation supercooling channel, liquid after gas-liquid separation flows into the liquid storage cavity under the action of self gravity, non-condensable gas is output from the non-condensable gas outlet through the spiral channel, and therefore the condensation, gas-liquid separation and liquid storage functions can be realized in a small space. In addition, the invention integrates condensation, gas-liquid separation and liquid storage into one condensing device without arranging a connecting pipeline. Meanwhile, the condensing equipment is vertically installed, and great economic benefits are brought to investment, occupied land, system operation cost and the like. In order to improve the condensation and gas-liquid separation effects, preferably, the condensation supercooling channel is spirally arranged from inside to outside. Therefore, the contact area between the condensation supercooling channel and the shell side medium can be increased, and the condensation and gas-liquid separation effects are improved. The condensation supercooling channel can be electrified for refrigeration, preferably, the condensation supercooling member is provided with a central tube and a spiral plate, the central tube extends up and down, the upper port of the central tube is communicated with the lower end tube orifice of the heat exchange tube, the lower port of the central tube is closed, the spiral plate is arranged on the periphery of the central tube, the spiral plate is provided with two adjacent spiral channels which are wound clockwise or anticlockwise along the circumferential direction, the first s