Novel heat exchange device of low-temperature liquid water bath type vaporizer

Abstract

The utility model discloses a novel heat exchange device of a low-temperature liquid water bath type vaporizer, and belongs to the technical field of low-temperature liquid water bath type vaporizers. The heat exchanger comprises a fixing support, finned tubes and winding tubes, the finned tubes and the winding tubes are arranged from bottom to top and fixedly installed through the fixing support, lower ports of the finned tubes are connected with a liquid inlet pipeline, upper ports of the finned tubes are connected with the winding tubes, outlets of the winding tubes are connected with an air outlet pipeline, and the air outlet pipeline is connected with a heat exchanger. The finned tube comprises a plurality of transverse tubes which are sequentially arranged from bottom to top in the transverse direction, and the transverse tubes are connected through winding tube connecting tubes. According to the utility model, the finned tube and the winding tube are respectively utilized through two stages of low-temperature liquid gasification and heating, so that the heat exchange efficiency is improved, and the equipment material and the manufacturing cost are greatly reduced. The problems that a single round pipe with a smooth outer surface is adopted as a heat exchange pipe of a water bath type vaporizer heat exchange device on the market, the heat exchange area of a unit length of the common round pipe is small, and the heat exchange efficiency is low are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-temperature liquid water bath type vaporizers, in particular to a novel heat exchange device of low-temperature liquid water bath type vaporizers. Background Art

[0002] Cryogenic liquid water bath vaporizer (abbreviated as water bath vaporizer) is a special equipment used to vaporize cryogenic liquids (such as liquid oxygen, liquid nitrogen, liquid argon and liquefied natural gas, etc.) in petroleum, air separation and chemical plants. However, the heat exchange device of the existing water bath vaporizer on the market uses a single round tube with a smooth outer surface. This ordinary round tube has a small heat exchange area per unit length and low heat exchange efficiency. In order to achieve the heat exchange area and gasification heating effect, the length of the round tube is continuously increased, and the cylinder is also enlarged. This structure greatly increases the equipment material and manufacturing costs, and the overall weight and floor space of the equipment also increase. Utility Model Content

[0003] In view of the problems existing in the above background technology, the utility model proposes a novel heat exchange device for a low-temperature liquid water bath type vaporizer. The utility model has good heat exchange efficiency and can reduce equipment material and manufacturing costs.

[0004] To this end, the utility model adopts the following technical scheme: a novel heat exchange device for a low-temperature liquid water bath gasifier, comprising a fixed bracket, a fin tube and a winding tube, the fin tube and the winding tube are arranged from bottom to top and fixedly installed by the fixed bracket, the lower port of the fin tube is connected to the liquid inlet pipeline, the upper port of the fin tube is connected to the winding tube, the outlet of the winding tube is connected to the air outlet pipeline, and the fin tube includes a plurality of transverse tubes arranged in sequence from bottom to top, and the transverse tubes are connected by the winding tube.

[0005] The utility model can achieve the following beneficial effects: the utility model uses finned tubes and wound tubes in two stages of low-temperature liquid gasification and heating, respectively, to improve heat exchange efficiency, thereby greatly reducing equipment materials and manufacturing costs. It solves the problem that the heat exchange tubes of the existing water bath vaporizer heat exchange device on the market use a single round tube with a smooth outer surface, which has a small heat exchange area per unit length and low heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of the utility model.

[0007] Figure 2 Schematic diagram of the transverse structure of the fin tube.

[0008] Figure 3 It is a schematic diagram of the transverse structure of the winding tube. DETAILED DESCRIPTION

[0009] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. The described embodiments are only for illustration and explanation of the present invention and do not constitute the sole limitation of the present invention.

[0010] like Figure 1-Figure 3 As shown, the utility model includes a fixed bracket, a fin tube 6 and a winding tube 2. The fin tube 6 and the winding tube 2 are arranged from bottom to top and fixedly installed by the fixed bracket. The lower port of the fin tube is connected to the liquid inlet pipeline 5, the upper port of the fin tube is connected to the winding tube 2, the outlet of the winding tube 2 is connected to the air outlet pipeline 10, and the fin tube 6 includes a plurality of transverse tubes arranged in sequence from bottom to top, and the transverse tubes are connected by a winding tube connecting tube 8.

[0011] As a preferred embodiment of the present invention, the center of the finned tube 6 is a circular tube, and the outer surface of the circular tube is connected to 8 or 12 thin plates. The outer diameter of the fin is generally 100-200mm, and it is extruded as a whole. The central tube of the winding tube 2 is a circular tube, and the thin plates connected to the outer end are spirally connected, with an outer diameter of 28-50mm, and it is extruded as a whole. The inlet of all the finned tubes 6 at the bottom layer is connected to the manifold of the liquid inlet pipeline 5. The outlet of the winding tube 2 at the top layer is connected to the manifold of the gas outlet pipeline 10. The number of finned tubes 6 is greater than or equal to the number required for the cryogenic liquid to be completely vaporized into cryogenic gas; the number of winding tubes 2 is greater than or equal to the number required for the cryogenic gas to be heated to the set temperature. The finned tubes 6 and the winding tubes 2 are fixedly installed on the fixed bracket 3 by U-bolts, and the fixed bracket 3 is firmly fixed inside the cylinder 1.

[0012] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel heat exchange device for a low-temperature liquid water bath vaporizer, characterized in that: The heat exchange device of the novel low-temperature liquid water bath gasifier comprises a fixed bracket, a fin tube (6) and a finned tube (2). The fin tube (6) and the finned tube (2) are arranged from bottom to top and fixedly installed by the fixed bracket. The lower end of the fin tube is connected to the liquid inlet pipeline (5), the upper end of the fin tube is connected to the finned tube (2), the outlet of the finned tube (2) is connected to the gas outlet pipeline (10), and the fin tube (6) comprises a plurality of transverse tubes arranged in sequence from bottom to top, and the transverse tubes are connected by a finned tube connecting tube (8).

2. The heat exchange device of a novel low-temperature liquid water bath type vaporizer according to claim 1 is characterized in that: The center of the fin tube (6) is a round tube, the outer surface of the round tube is connected with 8 or 12 thin plates, the outer diameter of the fin is 100-200 mm, and the whole is extruded.

3. The heat exchange device of a novel low-temperature liquid water bath type vaporizer according to claim 1 is characterized in that: The central tube of the sheet-winding tube (2) is a round tube, the thin sheets connected at the outer ends are spiral-shaped, the outer diameter is 28-50 mm, and the whole is extruded.

4. The heat exchange device of the novel low-temperature liquid water bath type vaporizer according to claim 3 is characterized in that: The inlets of all the fin tubes (6) at the bottom layer are connected to the manifold of the liquid inlet pipeline (5).

5. The heat exchange device of the novel low-temperature liquid water bath type vaporizer according to claim 4 is characterized in that: The outlet of the uppermost winding tube (2) is connected to the collecting pipe of the air outlet pipeline (10).

6. The heat exchange device of the novel low-temperature liquid water bath type vaporizer according to claim 5 is characterized in that: The number of fin tubes (6) is greater than or equal to the number required for completely vaporizing the cryogenic liquid into cryogenic gas; and the number of wound tubes (2) is greater than or equal to the number required for heating the cryogenic gas to a set temperature.

7. The heat exchange device of the novel low-temperature liquid water bath type vaporizer according to claim 6 is characterized in that: The fin tube (6) and the finned tube (2) are fixedly mounted on the fixing bracket (3) by means of U-shaped bolts, and the fixing bracket (3) is firmly fixed inside the cylinder (1).

Images