CN210198149U

CN210198149U - Floating tube type graphite heat exchanger

Info

Publication number: CN210198149U
Application number: CN201921108016.9U
Authority: CN
Inventors: Wei Wang; 王伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-03-27
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a tubular graphite heat exchanger floats belongs to heat exchanger technical field. The novel tube plate is characterized in that a plurality of graphite tubes and a plurality of baffle plates are arranged in the shell, two ends of each graphite tube penetrate through the auxiliary tube plate and the tube plate, the auxiliary tube plate is located on one side of the shell, a distance pull rod is arranged in the shell and penetrates through the tube plate, plugs are arranged at two ends of the distance pull rod, sealing joints are arranged at two ends of each graphite tube, and the sealing joints are connected with the tube plates through threads. The sealing joint and the tube plate mounting hole are in threaded fit and compression, the sealing piece is used for forming sliding mechanical sealing between the graphite tube and the tube plate, limitation of other factors is avoided, pressure resistance of equipment is improved by more than one time, high heat conductivity of graphite materials is reserved, and a heat exchange effect is guaranteed.

Description

Floating tube type graphite heat exchanger

Technical Field

The utility model relates to a tubular graphite heat exchanger floats belongs to heat exchanger technical field.

Background

The graphite heat exchanger is a heat exchanger made of graphite for a heat transfer component, and the graphite for manufacturing the heat exchanger is impermeable, and impregnation type impermeable graphite and profiling impermeable graphite are commonly used.

The floating head tube type graphite heat exchanger has high skill requirement, high cost, low pressure resistance and difficult maintenance due to the same material bonding structure adopted between the heat exchange tube and the tube plate, and the pressure resistance of the equipment is limited within 0.3MPa due to the limitation of welding, expanded connection and bonding strength between the graphite tube and the tube plate in the prior similar equipment;

the graphite modified polypropylene tubular heat exchanger adopts an expansion joint or welding structure, so that the heat resistance is low, the pressure resistance is low, the aging is fast, the expansion coefficient of the material is large, the interface fracture is easy to generate under the working condition with large temperature difference, the operation is unstable, the service life is short, and the maintenance is difficult.

Disclosure of Invention

To the above problem, the to-be-solved technical problem of the utility model is to provide a tube graphite heat exchanger floats.

The utility model discloses a tubular graphite heat exchanger floats, it contains graphite pipe and casing, the casing both sides are provided with the tube sheet, and are provided with sealed the pad between tube sheet and the casing, the inside a plurality of graphite pipes and several baffling boards that are provided with of casing, supplementary tube sheet and tube sheet are run through at graphite pipe both ends, supplementary tube sheet is located casing one side, the inside distance pull rod that is provided with of casing, and the distance pull rod runs through the tube sheet, distance pull rod both ends are provided with the end cap, the graphite pipe both ends are provided with sealing joint, and pass through threaded connection between sealing joint and the tube sheet.

Preferably, the shell and the tube plate are fixed by fasteners.

Preferably, the graphite pipes are distributed along the axial direction of the shell.

Preferably, the baffles are arranged in a staggered manner along the longitudinal direction of the shell.

Preferably, a sealing element is arranged at the joint of the front end of the sealing joint and the tube plate, and the sealing element is sleeved on the graphite tube.

Preferably, the sealing element is an O-ring or a sealing strip.

Compared with the prior art, the beneficial effects of the utility model are that: this tube graphite heat exchanger floats adopts the mode that sealing joint and tube sheet mounting hole screw-thread fit compress tightly, use the sealing member to form the slip mechanical type between messenger's graphite pipe and the tube sheet and seal, no restriction of other factors, the pressure resistance who makes equipment has improved more than the one time, keep the high heat conductivility of graphite material, guarantee the heat transfer effect, improve equipment pressure application range, enlarge equipment difference in temperature application range, low equipment manufacturing cost, the selection of each spare part is more nimble for use to the spare part combination assembled structure of complete components and parts, choose for use different tube sheets, seal and casing material, make it to deal with different operating mode media, be convenient for the heat exchange tube to change and maintain alone, shorten maintenance duration and cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the installation structure of the graphite tube and the sealing joint of the present invention.

Reference numerals: the device comprises a graphite tube 1, a shell 2, a baffle plate 3, a tube plate 4, a sealing joint 5, a fastener 6, a sealing gasket 7, a distance pull rod 8, an auxiliary tube plate 9, a plug 10 and a sealing element 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the following technical solutions are adopted in the present embodiment: the heat exchange tube comprises a graphite tube 1, a shell 2, baffle plates 3, tube plates 4, a sealing joint 5, a fastener 6, a sealing gasket 7, a distance pull rod 8, an auxiliary tube plate 9, a plug 10 and a sealing element 11, wherein the tube plates 4 are arranged on two sides of the shell 2, the sealing gasket 7 is arranged between the tube plates 4 and the shell 2, the shell 2 and the tube plates 4 are fixed through the fastener 6, the heat exchange tube is convenient to install and disassemble, a plurality of graphite tubes 1 and a plurality of baffle plates 3 are arranged in the shell 2, the graphite tubes 1 are distributed along the axial direction of the shell 2, two ends of each graphite tube 1 penetrate through the auxiliary tube plates 9 and the tube plates 4, the auxiliary tube plates 9 are positioned on one side of the shell 2, the baffle plates 3 are distributed along the longitudinal direction of the shell 2 in a staggered manner, the baffle plates 3 extend the flow path line of a heat exchange medium, the two ends of the distance pull rod 8 are provided with plugs 10, the two ends of the graphite tube 1 are provided with sealing joints 5, the sealing joints 5 are connected with the tube plate 4 through threads, a sealing part 11 is arranged at the joint of the front end of the sealing joint 5 and the tube plate 4, the sealing part 11 is sleeved on the graphite tube 1, and the sealing part 11 is an O-shaped ring or a sealing strip, so that the sealing performance between the graphite tube 1 and the tube plate 4 and between the graphite tube 5 is ensured.

The working principle is as follows: when the heat exchanger works, materials and heat exchange media, one tube pass and one shell pass are subjected to heat exchange, and the baffle plate 3 prolongs the flow path of the heat exchange media, so that the heat exchange efficiency is improved; 1 both ends of graphite pipe are equipped with sealing joint 5 to through threaded connection between sealing joint 5 and the tube sheet 4, every graphite pipe 1 all exists independently and sealed, not only the assembly is simple, the maintenance of single graphite pipe 1 of being convenient for is changed moreover, simultaneously under the great operating mode of the difference in temperature, every graphite pipe 1 all can freely stretch out and draw back, the equipment difference in temperature application range has been enlarged, and the effectual interface fracture damage problem that causes because expend with heat and contract with cold of having solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A floating tube type graphite heat exchanger is characterized in that: it contains graphite pipe (1) and casing (2), casing (2) both sides are provided with tube sheet (4), and are provided with sealed pad (7) between tube sheet (4) and casing (2), casing (2) inside is provided with a plurality of graphite pipes (1) and several baffling board (3), supplementary tube sheet (9) and tube sheet (4) are run through at graphite pipe (1) both ends, supplementary tube sheet (9) are located casing (2) one side, casing (2) inside is provided with distance pull rod (8), and distance pull rod (8) run through tube sheet (4), distance pull rod (8) both ends are provided with end cap (10), graphite pipe (1) both ends are provided with sealing joint (5), and pass through threaded connection between sealing joint (5) and tube sheet (4).

2. The floating tube graphite heat exchanger of claim 1, wherein: the shell (2) and the tube plate (4) are fixed through a fastener (6).

3. The floating tube graphite heat exchanger of claim 1, wherein: the graphite tubes (1) are distributed along the axial direction of the shell (2).

4. The floating tube graphite heat exchanger of claim 1, wherein: the baffle plates (3) are arranged in a staggered mode along the longitudinal direction of the shell (2).

5. The floating tube graphite heat exchanger of claim 1, wherein: and a sealing element (11) is arranged at the joint of the front end of the sealing joint (5) and the tube plate (4), and the sealing element (11) is sleeved on the graphite tube (1).

6. The floating tube graphite heat exchanger of claim 5, wherein: the sealing element (11) is an O-shaped ring or a sealing strip.