CN209341925U - The shell and tube core sealing structure of pipe bundle drier - Google Patents

Abstract

The utility model relates to a kind of shells of pipe bundle drier and tube core sealing structure, including shell and tube core, tube core is arranged in shell, the shaft at tube core both ends is installed on shell, sealing device is provided between shaft and shell, sealing device includes seal receptacle, airtight and watertight padding and gland, seal receptacle is fastenedly connected with shell, shaft is installed in seal receptacle, gland is fitted in seal receptacle, gland is bolted connection with seal receptacle end face, seal receptacle, seal chamber is formed between gland and shaft, airtight and watertight padding is filled in seal chamber, gland compresses airtight and watertight padding, airtight and watertight padding is suspension type filler.Packing seal is at low cost, suspension type filler wear-resisting property is brilliant, intensity is high, elasticity is good, bumper and absorbing shock is good, it can be effectively solved the sealing problem between the hollow rotating shaft and shell of pipe bundle drier, avoid the sealing life because caused by shaft coaxiality error is big short and material leakage.

Description

The shell and tube core sealing structure of pipe bundle drier

Technical field

The utility model relates to the drying equipment technical fields of the powder granules material such as grain, feed, and in particular to a kind of The shell and tube core sealing structure of pipe bundle drier.

Background technique

Pipe bundle drier is a kind of indirect heating contact drier, be widely used in chemical industry, light industry, food, grain and The drying of the bulk material of the industries such as feed, the material such as powdery, graininess, sheet class without too big viscosity.Pipe bundle drier is Tube bank rotation is driven by motor and speed reducer, material enters in drying machine by feeding packing auger from feed inlet, by mounted in pipe The shovelling plate of core periphery takes up material, and constantly pushes to discharge port one end from feed inlet one end, and material is taken up by shovelling plate to top It is fallen under gravity between tube bank behind portion.

High-temperature steam from the rotary joint of discharge port one end of pipe bundle drier enter tube bank pipe in, along tube bank pipe inside to Feed inlet one end of pipe bundle drier is flowed, high-temperature steam heating tube beam tube, carries out heat through heat transmitting and heat radiation and wet stock Exchange, evaporates the moisture in interbank material, and the steam condensation in tube bank is connect by feed inlet one end rotation of pipe bundle drier Head discharge, can make to be evaporated by moisture in material and complete drying by this process.

Pipe bundle drier is mainly made of shell and tube core, and tube core is arranged in shell, and opposite housing into rotation, tube core by End socket, tube sheet, support plate, shovel admittedly angle steel, shaft and set of heat exchange tubes at, hollow shaft is respectively welded on the end socket of both ends, it is empty Heart shaft is connected to by tube sheet with heat exchanger tube, and hollow rotating shaft is separately connected high temperature steam pipeline and condensate water discharging pipeline, hollow Shaft is each passed through the both ends of the shell of pipe bundle drier, and material to be dried is located in shell, is done with the rotation of tube core Dry and push.To prevent slot leakage of the material between hollow rotating shaft and shell, it usually needs shell and hollow rotating shaft it Between be arranged sealing.Currently, common sealing device is mechanical seal, mechanical seal sealing effect is good, but expensive, causes Pipe bundle drier higher cost, moreover, the general volume of pipe bundle drier is larger, and the hollow rotating shaft at tube core both ends processes system respectively It makes, this is easy for that the concentricity of the hollow rotating shaft at tube core both ends is caused not can guarantee, and therefore, tube core is during rotation, hollow Shaft and mechanical seal friction are serious, cause mechanical seal frangible bad, and sealing life is short, once bad seals easily cause shell The leakage of interior material causes the waste of material and influences the normal operation of pipe bundle drier.

Utility model content

In conclusion in order to overcome the shortcomings of prior art problem, the utility model provides a kind of pipe bundle drier Shell and tube core sealing structure, the sealing device using packing seal as shell and hollow rotating shaft, and packing seal are filled out Material uses suspension type filler, and packing seal is at low cost, and suspension type filler wear-resisting property is brilliant, intensity is high, elasticity is good, bumper and absorbing shock Property is good, can be effectively solved the sealing problem between the hollow rotating shaft and shell of pipe bundle drier, avoids because shaft is coaxial Spend error it is big caused by sealing life is short and material leakage.

In order to solve the above technical problems, the technical solution adopted by the utility model is:

A kind of shell of pipe bundle drier and tube core sealing structure, in which: including shell and tube core, the tube core setting In shell, the shaft at tube core both ends is installed on shell, and sealing device is provided between the shaft and shell, described Sealing device includes seal receptacle, airtight and watertight padding and gland, and the seal receptacle is fastenedly connected with shell, and the shaft is worn In seal receptacle, gland is fitted in the seal receptacle, gland and seal receptacle end face are fastened by bolts company It connects, forms seal chamber between seal receptacle, gland and shaft, be filled with airtight and watertight padding, gland in the seal chamber Airtight and watertight padding is compressed, the airtight and watertight padding is suspension type filler.

Further, the tube core includes shaft, tube sheet, end socket, shovels angle steel, heat exchanger tube and support plate admittedly, and described two A end socket is oppositely arranged, and is fixedly connected on the inside of end socket with tube sheet, and end socket and tube sheet form cavity body structure, and two tube sheets pass through multiple Heat exchanger tube connection, tube bank of multiple set of heat exchange tubes at pipe bundle drier, the cavity of two end sockets of heat exchanger tube connection and tube sheet composition Inner cavity, be provided with shaft on the outside of two end sockets, the shaft is hollow rotating shaft, the inner hole and envelope of hollow rotating shaft Head is connected to the cavity in tube sheet besieged city, described two end sockets being oppositely arranged of solid shovel Bolted angle connection, admittedly setting on the outside of shovel angle steel There is shovelling plate, be provided with support plate on the inside of the solid shovel angle steel, casing is provided in the support plate, heat exchanger tube passes through support Casing on plate.

Further, the shell includes upper housing, lower case and end plate, and the lower case is located at the lower part of tube core, The upper housing cover is mounted in the top of tube core, and end plate is located at the both ends of tube core, end plate connection upper housing and lower case, described The shaft of tube core passes through end plate, and sealing device is arranged between shaft and end plate, and the seal receptacle of sealing device and end plate fasten Connection.

The utility model has the following beneficial effects:

1, the utility model uses sealing device of the packing seal as shell and hollow rotating shaft, and packing seal is filled out Material uses suspension type filler, and packing seal is at low cost, and suspension type filler wear-resisting property is brilliant, intensity is high, elasticity is good, bumper and absorbing shock Property is good, can be effectively solved the sealing problem between the hollow rotating shaft and shell of pipe bundle drier, avoids because shaft is coaxial Spend error it is big caused by sealing life is short and material leakage.

2, by collar supports, heat exchanger tube is installed in casing for the heat exchanger tube of the tube core of the utility model and support plate, is increased The bearing area of big heat exchanger tube guarantees firm supporting, heat exchanger tube is avoided directly to contact with support plate, avoid because support plate thickness compared with It is thin and caused by heat exchanger tube premature abrasion damage, guarantee the service life of heat exchanger tube.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the portion the A enlarged diagram of Fig. 1 of the utility model；

Fig. 3 is the portion the B enlarged diagram of Fig. 1 of the utility model.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

As shown in Figure 1, Figure 2 and Figure 3, a kind of shell of pipe bundle drier and tube core sealing structure, including shell 1 and tube core 2, the shell 1 includes upper housing 11, lower case 12 and end plate 13, and the lower case 12 is located at the lower part of tube core 2, described The cover of upper housing 11 be mounted in the top of tube core 2, end plate 13 is located at the both ends of tube core 2, the connection upper housing 11 of end plate 13 and lower case 12, the shaft 21 of the tube core 2 passes through end plate 13, and sealing device is arranged between shaft 21 and end plate 13, and sealing device Seal receptacle 3 be fastenedly connected with end plate 13.The tube core 2 includes shaft 21, tube sheet 22, end socket 23, shovels angle steel 24, heat exchange admittedly Pipe 25 and support plate 26, two end sockets 23 are oppositely arranged, and 23 inside of end socket is fixedly connected with tube sheet 22, end socket 23 and pipe Plate 22 forms cavity body structure, and two tube sheets 22 are connected by multiple heat exchanger tubes 25, and multiple heat exchanger tubes 25 form pipe bundle drier Tube bank, heat exchanger tube 25 are connected to the inner cavity for the cavity that two end sockets 23 and tube sheet 22 form, are all provided on the outside of two end sockets 23 It is equipped with shaft 21, the shaft 21 is hollow rotating shaft 21, the chamber that the inner hole and end socket 23 and tube sheet 22 of hollow rotating shaft 21 are encircled a city Body connection, the solid shovel angle steel 24 connect two end sockets 23 being oppositely arranged, admittedly shovelling plate 28, institute are provided on the outside of shovel angle steel 24 It is provided with support plate 26 on the inside of the solid shovel angle steel 24 stated, casing 27 is provided in the support plate 26, heat exchanger tube 25 passes through branch Casing 27 on fagging 26.The tube core 2 is arranged in shell 1, and the shaft 21 at 2 both ends of tube core is installed on shell 1, described Shaft 21 and shell 1 between be provided with sealing device, the sealing device includes seal receptacle 3, airtight and watertight padding 4 and filler pressure Lid 5, the seal receptacle 3 are fastenedly connected with shell 1, and the shaft 21 is installed in seal receptacle 3, in the seal receptacle 3 Be fitted with gland 5, gland 5 is bolted connection with 3 end face of seal receptacle, seal receptacle 3, gland 5 and turn Seal chamber is formed between axis 21, airtight and watertight padding 4 is filled in the seal chamber, gland 5 compresses airtight and watertight padding 4, described Airtight and watertight padding 4 be suspension type filler.

In use, when the utility model is used, tube core 2 rotates, solid shovel angle steel 24 on tube core 2 and the shovelling plate being arranged thereon 28 take up the top of the tube bank of the material to be dried in shell 1 to heat exchanger tube 25, and then material falls under gravity into heat exchange Between pipe 25, due to being passed through high-temperature steam in heat exchanger tube 25,25 tube wall of heat exchanger tube is heated, through heat transmitting and heat radiation and material Heat exchange is carried out, the moisture in material is evaporated, achievees the purpose that dried material.The shaft 21 of the utility model and shell 1 Stuffing seal is set between end face, and the airtight and watertight padding 4 of the stuffing seal uses suspension type filler, suspension type filler Using polyurethane elastomer, the material wear-resistant performance is brilliant, intensity is high, elasticity is good, bumper and absorbing shock is good.It can effectively ensure that Sealing effect, moreover, deflection abrasion caused by capable of effectively avoiding due to the coaxiality error of the shaft 21 of 2 two sides of tube core is asked Topic.Sealing effect is good, can effectively avoid the appearance of material leakage problem.

It should be noted that embodiment described above be to the illustrative and not limiting of technical solutions of the utility model, it is affiliated The equivalent replacement of technical field those of ordinary skill or the other modifications made according to the prior art, as long as unpractical beyond this The thinking and range of new technique scheme, should be included within interest field required by the utility model.

Claims (3)

1. a kind of shell of pipe bundle drier and tube core sealing structure, it is characterised in that: described including shell (1) and tube core (2) Tube core (2) setting in the shell (1), the shaft (21) at tube core (2) both ends is installed on shell (1), the shaft (21) Sealing device is provided between shell (1), the sealing device includes seal receptacle (3), airtight and watertight padding (4) and gland (5), the seal receptacle (3) is fastenedly connected with shell (1), and the shaft (21) is installed in seal receptacle (3), and described is close It is fitted with gland (5) in envelope seat (3), gland (5) is bolted connection with seal receptacle (3) end face, seal receptacle (3), seal chamber is formed between gland (5) and shaft (21), is filled with airtight and watertight padding (4) in the seal chamber, filler Gland (5) compresses airtight and watertight padding (4), and the airtight and watertight padding (4) is suspension type filler.

2. the shell of pipe bundle drier according to claim 1 and tube core sealing structure, it is characterised in that: the tube core (2) include shaft (21), tube sheet (22), end socket (23), shovel angle steel (24), heat exchanger tube (25) and support plate (26) admittedly, it is described Two end sockets (23) are oppositely arranged, and are fixedly connected on the inside of end socket (23) with tube sheet (22), and coelosis is organized in end socket (23) and tube sheet (22) Body structure, two tube sheets (22) are connected by multiple heat exchanger tubes (25), the tube bank of multiple heat exchanger tube (25) composition pipe bundle driers, Heat exchanger tube (25) is connected to the inner cavity of the cavity of two end sockets (23) and tube sheet (22) composition, and two end sockets (23) outside is It is provided with shaft (21), the shaft (21) is hollow rotating shaft, the inner hole and end socket (23) and tube sheet of hollow rotating shaft (21) (22) the cavity connection surrounded, the solid shovel angle steel (24) connects two end sockets (23) being oppositely arranged, admittedly shovel angle steel (24) Outside is provided with shovelling plate (28), is provided with support plate (26) on the inside of the solid shovel angle steel (24), in the support plate (26) It is provided with casing (27), heat exchanger tube (25) passes through the casing (27) on support plate (26).

3. the shell of pipe bundle drier according to claim 1 and tube core sealing structure, it is characterised in that: the shell It (1) include upper housing (11), lower case (12) and end plate (13), the lower case (12) is located at the lower part of tube core (2), described Upper housing (11) cover be mounted in the top of tube core (2), end plate (13) is located at the both ends of tube core (2), end plate (13) connection upper housing (11) with lower case (12), the shaft (21) of the tube core (2) passes through end plate (13), sealing device setting shaft (21) with Between end plate (13), and the seal receptacle (3) of sealing device is fastenedly connected with end plate (13).