CN213335694U

CN213335694U - Pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger

Info

Publication number: CN213335694U
Application number: CN202022383141.XU
Authority: CN
Inventors: 王伟; 于长伟; 庄元�
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-01
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a withstand voltage type unilateral double tube sheet seal tube graphite heat exchanger that floats, inside a plurality of graphite pipes and a plurality of baffling boards of being provided with of casing, the inside pull rod that is provided with of casing, the pull rod outside is provided with the sleeve pipe, and the sleeve pipe outside is provided with the distance pipe, and the pull rod both ends are provided with fastener, little sealed pad, and the pull rod both ends are provided with the end cap, and the casing both ends are provided with one-level tube sheet, division board, second grade tube sheet, and every division board is equipped with two inspection mouths, the graphite pipe both ends are provided with I type thread sealing joint and II type thread sealing joint. The utility model increases the pressure application range to be less than or equal to 0.8MPa, and the temperature application range can reach 170 ℃ at most, so that the utility model can be more generally used as a heater; the sealing performance of the equipment is improved, the problem that the existing equipment cannot be timely known when slight leakage occurs is solved, the equipment runs more stably, and the service life of the equipment is prolonged.

Description

Pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger

Technical Field

The utility model relates to a heat exchanger specifically is a sealed floating tube graphite heat exchanger of withstand voltage type unilateral double tube sheet.

Background

The tubular graphite heat exchanger is a heat exchanger made of graphite tubes for heat transfer components. The tubular graphite heat exchanger has the advantages of excellent corrosion resistance, difficult scaling of a heat transfer surface and good heat transfer performance. However, because of the limitation of a sealing type, the floating head tube type graphite heat exchanger can only be used for low pressure, the highest working pressure of the existing widely used floating head tube type graphite heat exchanger is generally only 0.3 MPa, the floating head tube type graphite heat exchanger cannot be suitable for a higher pressure working condition, the temperature application range of the equipment is less than 120 ℃, the floating head tube type graphite heat exchanger cannot be used as a heater, the equipment cannot be easily found when slight leakage occurs, the equipment needs to be immediately shut down for maintenance when serious leakage occurs, sufficient emergency response time does not exist, and the medium-sized equipment can only adopt a horizontal installation type due to the limitation of the strength of a. Therefore, the utility model provides a withstand voltage type unilateral double-tube-plate seals tubular graphite heat exchanger that floats to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide a withstand voltage type unilateral double-tubesheet seals tube graphite heat exchanger that floats to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger comprises a graphite tube, a shell, a primary tube plate, an isolation plate, a sealing assembly, a screw and a large sealing gasket, 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 primary tube plate and the secondary tube plate, a pull rod is arranged in the shell, and the pull rod runs through one-level tube sheet and second grade tube sheet, and the pull rod outside is provided with the sleeve pipe, and the sleeve pipe outside is provided with the distance tube, and the pull rod both ends are provided with fastener, little sealed pad, and the pull rod both ends are provided with the end cap, and the casing both ends are provided with one-level tube sheet, division board, second grade tube sheet, and it is sealed through big sealed pad and fastener between one-level tube sheet, division board, the second grade tube sheet, all adopts the pattern of countersunk head fastening in one-level tube sheet and the second grade tube sheet outside, and every division board is equipped with two inspection ports, the graphite pipe both ends are provided with.

As a further proposal of the utility model, the outside of the pull rod is provided with a sleeve, and the sleeve is connected with the one-level tube plate.

As the utility model discloses scheme further again, seal assembly comprises one-level sealing washer, second grade sealing washer, isolation pad, and the sealing washer is O type circle or sealing strip, and the isolation pad is corrosion-resistant material.

As the utility model discloses the scheme of furthering again, pass through threaded connection between I type thread sealing joint and II type thread sealing joint and one-level tube sheet and the second grade tube sheet.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses further improve equipment pressure application range, make pressure application range improve to be less than or equal to 0.8MPa, further improve equipment temperature application range makes temperature application range can reach the highest 170 ℃, makes it can be more general as the heater use.

2. The utility model discloses further improve equipment's leakproofness makes it can be applicable to the operating mode of forbidden seepage to solve the problem that current equipment can't in time learn when slight seepage appears.

3. The utility model discloses make equipment can extend on current basis and use the main equipment at the well main equipment of vertical installation and horizontal installation, make equipment operation more stable, prolonged equipment life.

Drawings

Fig. 1 is a schematic structural diagram of a pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger.

Fig. 2 is a schematic structural diagram of a tube plate in a pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger.

Fig. 3 is a schematic structural diagram of a sealing assembly in a pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger.

In the figure: 1. a graphite tube; 2. a housing; 3. a baffle plate; 4. a pull rod; 5. a sleeve; 6. a distance tube; 7. a primary tube sheet; 8. a separator plate; 9. a seal assembly; 10. a screw; 11. type II thread sealing joints; 12. a plug; 13. a small seal gasket; 14. a secondary tube sheet; 15. a type I threaded seal joint; 16. a large seal gasket; 17. a fastener; 18. a primary seal ring; 19. a secondary seal ring; 20 spacer mat.

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.

Referring to fig. 1 to 3, in an embodiment of the present invention, a pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger includes a graphite tube 1, a housing 2, a baffle plate 3, a pull rod 4, a sleeve 5, a distance tube 6, a first-level tube plate 7, a separation plate 8, a sealing assembly 9, a screw rod 10, a second-level thread sealing joint 11, a plug 12, a small sealing gasket 13, a second-level tube plate 14, a first-level thread sealing joint 15, a large sealing gasket 16, and a fastening member 17, wherein two ends of the apparatus are equipped with different types of end sockets or other apparatuses, and are connected to the outside through a connection.

The device comprises a shell 2, a plurality of graphite tubes 1 and a plurality of baffle plates 3 are arranged in the shell 2, two ends of each graphite tube 1 penetrate through a primary tube plate 7 and a secondary tube plate 14, a pull rod 4 is arranged in the shell 2, the pull rod 4 penetrates through the primary tube plate 7 and the secondary tube plate 14, a sleeve 5 is arranged outside the pull rod 4, the sleeve 5 is connected with the primary tube plate 7, a distance tube 6 is arranged outside the sleeve 5, fasteners 17 and small sealing gaskets 13 are arranged at two ends of the pull rod 4, plugs 12 are arranged at two ends of the pull rod 4, the primary tube plate 7, a separation plate 8 and the secondary tube plate 14 are arranged at two ends of the shell 2, the primary tube plate 7, the separation plate 8 and the secondary tube plate 14 are sealed through large sealing gaskets 16 and fasteners 17, the outer sides of the primary tube plate 7 and the secondary tube plate;

graphite pipe 1 both ends are provided with I type thread sealing joint 15 and II type thread sealing joint 11, and pass through threaded connection between I type thread sealing joint 15 and II type thread sealing joint 11 and one-level tube sheet 7 and second grade tube sheet 14, and seal assembly 9 comprises one-level sealing washer 18, second grade sealing washer 19, barrier pad 20, and the sealing washer is O type circle or sealing strip, and the barrier pad is corrosion-resistant material.

The utility model discloses a theory of operation: when the material is corrosive and the medium is non-corrosive: the first-stage tube plate 7 is made of carbon steel or stainless steel to ensure pressure resistance and sealing performance, the second-stage tube plate 14 is made of corrosion-resistant nonmetal or other materials to ensure corrosion resistance and sealing performance, the I-shaped threaded sealing joint 15, the II-shaped threaded sealing joint 11, the sealing assembly 9 and the sealing gasket can be made of different materials according to materials and media, the sleeve 5 is connected with the first-stage tube plate 7 and used for preventing corrosion, the distance tube 6 is arranged outside the sleeve 5 and used for fixing the baffle plate 3, the fastening piece 17 and the small sealing gasket 13 are arranged at two ends of the pull rod 4 to tension the tube plates and further ensure pressure resistance, the plugs 12 are arranged at two ends of the pull rod 4 and used for preventing the fastening piece 17 and the pull rod 4 from being corroded, the outer sides of the first-stage tube plate 7 and the second-stage tube plate 14 are both in a countersunk fastening mode so as to facilitate pressure test of equipment and connection of other, each division plate 8 is provided with two inspection ports for checking whether leakage exists in a pressure test and a production process, the I-type thread sealing joint 15 and the II-type thread sealing joint 11 are in thread fit and compression with the mounting holes of the first-stage tube plate 7 and the second-stage tube plate 14, and a sealing assembly 9 is used for forming sliding mechanical sealing between the graphite tube 1 and the tube plates.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger comprises a graphite tube (1), a shell (2), a first-stage tube plate (7), a partition plate (8), a sealing assembly (9), a screw (10) and a large sealing gasket (16), and is characterized in that the shell (2) is internally provided with a plurality of graphite tubes (1) and a plurality of baffle plates (3), the two ends of each graphite tube (1) penetrate through the first-stage tube plate (7) and a second-stage tube plate (14), a pull rod (4) is arranged inside the shell (2), the pull rod (4) penetrates through the first-stage tube plate (7) and the second-stage tube plate (14), a sleeve (5) is arranged outside the pull rod (4), distance tubes (6) are arranged outside the sleeve (5), fasteners (17) and small sealing gaskets (13) are arranged at the two ends of the pull rod (4), end caps (12) are arranged at the two ends of the shell (, Division board (8), second grade tube sheet (14), it is sealed through big sealed pad (16) and fastener (17) between one-level tube sheet (7), division board (8), second grade tube sheet (14), the type of countersunk head fastening is all adopted in one-level tube sheet (7) and second grade tube sheet (14) outside, and every division board (8) are equipped with two inspection hatches, graphite pipe (1) both ends are provided with I type thread sealing joint (15) and II type thread sealing joint (11).

2. The pressure-resistant single-side double-tube-plate sealed floating tube type graphite heat exchanger is characterized in that a sleeve (5) is arranged outside the pull rod (4), and the sleeve (5) is connected with the primary tube plate (7).

3. The pressure-resistant single-side double-tube-plate-sealed floating tube type graphite heat exchanger of claim 1, wherein the sealing assembly (9) comprises a primary sealing ring (18), a secondary sealing ring (19) and an isolating pad (20), the primary sealing ring (18) and the secondary sealing ring (19) are O-shaped rings or sealing strips, and the isolating pad (20) is made of corrosion-resistant materials.

4. The pressure-resistant single-side double-tube-plate-seal floating tube type graphite heat exchanger is characterized in that the I-type threaded seal joint (15) and the II-type threaded seal joint (11) are in threaded connection with the primary tube plate (7) and the secondary tube plate (14).