CN215373620U - Novel shell-and-tube heat exchanger - Google Patents
Novel shell-and-tube heat exchanger Download PDFInfo
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- CN215373620U CN215373620U CN202121258541.6U CN202121258541U CN215373620U CN 215373620 U CN215373620 U CN 215373620U CN 202121258541 U CN202121258541 U CN 202121258541U CN 215373620 U CN215373620 U CN 215373620U
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Abstract
The utility model discloses a novel shell-and-tube heat exchanger, which comprises: the shell is cylindrical, one end of the shell is provided with an opening, and the other end of the shell is provided with a seal head; the tube box is arranged on the opening of the shell and comprises a tube box flat cover and a tube box body, wherein the tube box body is provided with the tube box flat cover, and the tube box flat cover form a cooling liquid cavity; the other end is connected to the opening of the shell through a flange; the tube bundle assembly is arranged in the shell and comprises a tube plate and a U-shaped tube bundle arranged on the tube plate, the U-shaped tube bundle is sealed with the cooling liquid cavity through the tube plate, and the U-shaped tube bundle is communicated with the cooling liquid cavity; the baffle plate is arranged in the shell through a support rod and is perpendicular to the length direction of the tube bundle. According to the utility model, the tube box body is integrally forged, so that the material cost is saved, meanwhile, a welding seam is avoided from being generated in the tube box, and the overall strength and the pressure-bearing capacity of the tube box are improved. The U-shaped tube bundle is arranged in the shell, so that the tube pass of tube pass fluid in the tube bundle is increased, and the heat transfer performance and the pressure bearing performance are good.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a novel shell-and-tube heat exchanger.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production. Among them, the shell-and-tube heat exchanger is a common heat exchanger device in the petrochemical industry, and is the most widely used heat exchanger at present. The shell-and-tube heat exchanger is a dividing wall type heat exchanger which is enclosed in a shell and avoids using a tube bundle as a heat transfer surface, and consists of a shell, a heat transfer tube bundle, a tube plate, a baffle plate and a tube box component. The traditional shell-and-tube heat exchanger has the advantages of simple structure, low cost, wider flow cross section, easy scale cleaning and the like, but because the heat exchange tube has larger diameter and longer tube pass, the shell-and-tube heat exchange tube has the defects of low heat transfer coefficient, large floor area, and poor pressure resistance and anti-seismic performance.
For this reason, chinese invention patent CN109654909A provides a high-temperature high-pressure micro-fine shell-and-tube heat exchanger, which comprises a heat exchanger shell, a tube box, and a heat exchanger tube bundle, wherein the tube box is respectively installed at two ends of the heat exchanger shell; a cold fluid inlet is arranged on one tube box, a cold fluid outlet is arranged on the other tube box, and a hot fluid inlet and a hot fluid outlet are arranged on the shell of the heat exchanger; the heat exchanger tube bundles are multiple and are axially distributed in the heat exchanger shell; a tube plate sealing device is arranged in each tube box; two ends of each heat exchanger tube bundle are inserted on the tube plate sealing device and sealed by the tube plate sealing device, one end of each heat exchanger tube bundle is communicated with the cold fluid inlet, and the other end of each heat exchanger tube bundle is communicated with the cold fluid outlet; each heat exchanger tube bundle is a sine-shaped bent tube or a trapezoid-shaped bent tube. The scheme improves the heat transfer efficiency of the heat exchanger to a certain extent. However, the above solution has the following disadvantages:
(1) flanges are respectively welded at two ends of a tube box of the heat exchanger, and the tube box is connected with a shell of the heat exchanger through the flanges, so that on one hand, the manufacturing cost of the heat exchanger is increased, and on the other hand, the welding seams at the welding flanges at two sides of the tube box have stress loss, and the pressure bearing capacity of the whole structure of the heat exchanger is easily influenced;
(2) the heat exchange tube bundle is sine bending tube or trapezoid bending tube, although the tube pass of tube pass fluid is increased to a certain extent, the sine bending tube or trapezoid bending tube is high in processing cost and inconvenient to install, dirt accumulation is easily caused at a plurality of bending sections, the cleaning is inconvenient, and the service life of the heat exchange tube is influenced.
In view of the above, there is a need for an improved tube bundle heat exchanger structure in the prior art, so as to reduce the manufacturing cost of the heat exchanger, improve the pressure-bearing capacity of the heat exchanger structure, improve the heat transfer efficiency of the heat exchanger, and reduce the deposition of dirt in the heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that the existing tube bundle type heat exchanger is high in manufacturing cost, weak in structural pressure-bearing capacity, low in heat transfer efficiency and easy to cause deposition in a tube to influence the service life of a heat exchange tube bundle.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a novel shell and tube heat exchanger comprising:
the shell is cylindrical, one end of the shell is provided with an opening, and the other end of the shell is provided with a seal head; the shell is provided with an air inlet and an air outlet;
the tube box is arranged on the opening of the shell and comprises a tube box flat cover and a tube box body, one end of the tube box body is provided with the opening, the other end of the tube box body is connected to the opening of the shell through a flange, the tube box flat cover is arranged on the tube box body and forms a cooling liquid cavity together with the tube box body, and the tube box body is provided with a cooling liquid inlet and a cooling liquid outlet;
the tube bundle assembly is arranged in the shell and comprises a tube plate and a U-shaped tube bundle arranged on the tube plate, the U-shaped tube bundle is sealed with the cooling liquid cavity through the tube plate, and the U-shaped tube bundle is communicated with the cooling liquid cavity;
and the baffle plate is arranged in the shell through a support rod and is perpendicular to the length direction of the tube bundle.
In the above scheme, preferably, a heat insulation plate is arranged in the cooling liquid cavity, and the cooling liquid inlet and the cooling liquid outlet are respectively arranged on two sides of the partition plate.
In the foregoing aspect, preferably, the coolant inlet is disposed on a bottom surface of the tube box body, and the coolant outlet is disposed on a top surface of the tube box body.
In the above scheme, preferably, a saddle is arranged on the bottom surface of the housing, the saddle comprises a first saddle and a second saddle which are symmetrically arranged, the saddle comprises a bottom plate and two support plates arranged on the top surface of the bottom plate, and a reinforcing plate is arranged between the support plates; the bottom plate of the first saddle is provided with a bolt hole, and the second saddle is provided with a long hole.
In the above aspect, preferably, a ground plate is provided on a side surface of the reinforcing plate.
In the above aspect, preferably, a lifting lug is disposed on the top surface of the housing.
In the above scheme, preferably, the pipe barrel is provided with a pressure gauge port.
In the above aspect, preferably, the air inlet is provided on a top surface of the tube, and the air outlet is provided on a bottom surface of the tube.
In the above scheme, preferably, the air inlet, the gas outlet the coolant liquid import with all be equipped with the outlet pipe on the coolant liquid export, the outlet pipe include the right angle return bend and with the horizontal segment straight tube that the right angle return bend is connected, the horizontal segment branch pipe with the pipe case with be equipped with the support angle steel between the outer periphery of bobbin.
In the above aspect, preferably, the tube box body is integrally forged.
Compared with the prior art, the novel shell-and-tube heat exchanger provided by the utility model comprises the shell, the tube box, the tube bundle assembly and the baffle plate, wherein the tube box assembly and the baffle plate are arranged in the shell, and the tube box body is integrally forged, so that the manufacturing cost of the tube box is saved, meanwhile, a welding seam is prevented from being generated in the tube box, the integral strength of the tube box is improved, and the service life of the tube box is prevented from being influenced by welding stress. The U-shaped tube bundle is arranged in the shell, so that the tube pass of tube pass fluid in the tube bundle is increased, and the heat transfer performance and the pressure bearing performance are good. The transverse baffle plates arranged in the shell guide shell pass fluid to change the flowing direction for many times, so that the tube bundle can be effectively washed, the heat transfer efficiency is improved, meanwhile, the tube bundle is supported, and the integral pressure bearing capacity of the shell-and-tube heat exchanger is improved.
Drawings
FIG. 1 is a front view of the novel shell and tube heat exchanger of the present invention;
FIG. 2 is a schematic sectional view of the novel shell and tube heat exchanger of the present invention;
FIG. 3 is a side view of the novel shell and tube heat exchanger of the present invention;
FIG. 4 is an internal structural view of the novel shell and tube heat exchanger of the present invention;
figure 5 is a top view of the saddle according to the utility model.
Wherein, the corresponding relationship between the name reference numerals of each part in fig. 1 to 5 is as follows:
the tube bundle assembly comprises a shell 1, a tube box 2, a tube bundle assembly 3, a baffle plate 4, a flange 11, an air inlet 12, an air outlet 13, a tube box body 21, a tube box flat cover 22, a heat insulation plate 23, a cooling liquid inlet 24, a cooling liquid outlet 25, a cooling liquid cavity 20, a tube plate 31, a U-shaped tube bundle 32, a support rod 5, a saddle 6, a first saddle 61, a second saddle 62, a bottom plate 63, a support plate 64, a reinforcing plate 65, a bolt hole 66, a long hole 67, a ground plate 68, an outlet pipe 7, a right-angle elbow 71, a horizontal straight tube 72, support angle steel 73 and a lifting lug 8.
Detailed Description
The utility model provides a novel shell-and-tube heat exchanger, which comprises a shell, a tube bundle assembly and a baffle plate, wherein the shell is integrally formed, the tube bundle assembly and the baffle plate are arranged in the shell, one end of the shell is opened, and the tube bundle is a U-shaped tube bundle, so that the production cost of a cooler is saved. The utility model is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the novel shell-and-tube heat exchanger provided by the utility model comprises a shell 1, a tube box 2 arranged at one end of the shell 1, and a tube bundle assembly 3 and a baffle plate 4 arranged in the shell 1.
The shell 1 is in a cylindrical shape with one open end, the other end of the shell 1 is provided with an end enclosure, and the pipe box 2 is arranged on the opening of the shell 1 and is connected with the opening of the shell 1 through a flange 11. An air inlet 12 and an air outlet 13 are provided on the housing 1.
In one embodiment of the present invention, the gas inlet 12 is disposed on the top surface of the housing 1, and the gas outlet 13 is disposed on the bottom surface of the housing 1, so as to facilitate sufficient circulation of gas in the heat exchanger housing and improve heat exchange efficiency.
The tube box 2 includes a tube box main body 21 and a tube box flat cover 22 disposed on the tube box main body 21, one end of the tube box main body 21 is provided with an opening, the other end is connected with the opening of the housing 1 through the flange 11, the tube box flat cover 22 is disposed on the opening of the tube box main body 21, and forms a cooling liquid cavity 20 with the tube box main body 21. The tube box body 21 is integrally forged, so that the manufacturing cost of the tube box is saved, meanwhile, a welding seam is prevented from being generated in the tube box, the overall strength of the tube box is improved, and the welding stress is prevented from influencing the service life of the tube box. The heat insulation plate 23 is arranged in the channel box body 21, the cooling liquid inlet 24 and the cooling liquid outlet 25 are arranged on the channel box body 21, and the cooling liquid inlet 24 and the cooling liquid outlet 25 are distributed on two sides of the heat insulation plate 23.
In one embodiment of the present invention, the cooling liquid inlet 24 is provided on the bottom surface of the channel body 21, and the cooling liquid outlet 25 is provided on the top surface of the channel body 21, for improving the flow efficiency of the cooling liquid in the heat exchanger, thereby improving the heat exchange efficiency while preventing the deposition of impurities in the cooling liquid.
The tube bundle assembly 3 comprises a tube plate 31 and a U-shaped tube bundle 32 arranged on the tube plate 31, the tube plate 31 is arranged on the bottom surface of the tube box body 21, two ends of the U-shaped tube bundle 32 are respectively arranged on the tube plate 31 and are hermetically arranged with the cooling liquid cavity 20 through the tube plate 31, and the U-shaped tube bundle 32 is communicated with the cooling liquid cavity 20.
The baffle plate 4 is arranged in the shell 1 through a support rod 5, one end of the support rod 5 is fixed on the bottom surface of the tube plate 31, and the baffle plate 4 is arranged perpendicular to the length direction of the shell 1.
In one embodiment of the present invention, as shown in fig. 5, a saddle 6 is provided on the bottom surface of the housing 1, the saddle 6 includes a first saddle 61 and a second saddle 62 which are symmetrically arranged, each saddle 6 includes a bottom plate 63 and two support plates 64 provided on the top surface of the bottom plate 63, and a reinforcement plate 65 is provided between the support plates 64. Be equipped with bolt hole 66 on the bottom plate of first saddle 61, be equipped with slot hole 67 on the bottom plate of second saddle 62, reserve certain flexible volume for the thermal barrier of equipment shrinkage for prevent that equipment from fixing the back completely, structural components such as saddle from taking place expend with heat and contract with cold and causing equipment to damage.
In another embodiment of the present invention, a grounding plate 68 is disposed on a side surface of the reinforcing plate 65, and the grounding plate 68 is grounded, so as to prevent the danger of explosion caused by static electricity generated by friction of fluid in the heat exchanger, and improve the stability of the heat exchanger during operation.
In another embodiment of the present invention, the air inlet 12, the air outlet 13, the cooling fluid inlet 24 and the cooling fluid outlet 25 are provided with outlet pipes 7, each of which comprises a right-angled elbow 71 and a horizontal straight pipe 72 connected to the right-angled elbow 71, and support angle steels 73 are provided between the horizontal branch pipes 72 and the outer circumferential surfaces of the casing 1 and the channel body 21 to improve the stability of the outlet pipes 7. The top surface of the shell 1 is provided with a lifting lug 8.
The working process of the utility model is as follows:
the gas to be cooled enters the shell 1 through the gas inlet 12 on the top surface of the shell 1 and is diffused and circulated in the shell 1, the cooling liquid such as seawater enters the cooling liquid cavity 20 through the cooling liquid inlet 24 and flows along the U-shaped tube bundle 32, and the gas in the shell 1 is cooled and then is discharged from the cooling liquid outlet 25. Due to the arrangement of the heat insulation plate 23 in the cooling liquid cavity 20, the cooling liquid with different temperatures in the cooling liquid cavity 30 can be separated to cool the fuel gas in the shell 1. The flowing direction of the fuel gas in the shell 1 is changed after the fuel gas meets the baffle plate 4 in the circulating process, so that the heat exchange between the fuel gas and the cooling liquid is improved.
The novel shell-and-tube heat exchanger comprises a shell, a tube box, a tube bundle assembly and a baffle plate, wherein the tube bundle assembly and the baffle plate are arranged in the shell, and the tube box body is integrally forged, so that the manufacturing cost of the tube box is saved, meanwhile, a welding seam is prevented from being generated in the tube box, the integral strength of the tube box is improved, and the service life of the shell is prevented from being influenced by welding stress. The U-shaped tube bundle is arranged in the shell, so that the tube pass of tube pass fluid in the tube bundle is increased, and the heat transfer performance and the pressure bearing performance are good. Meanwhile, the shell and the U-shaped tube bundle are separately arranged, the tube bundle can be freely stretched, thermal stress cannot be generated due to temperature difference between the tube wall and the shell wall, and the thermal compensation performance is good.
The transverse baffle plates arranged in the shell guide shell pass fluid to change the flowing direction for many times, so that the tube bundle can be effectively washed, the heat transfer efficiency is improved, meanwhile, the tube bundle is supported, and the integral pressure bearing capacity of the shell-and-tube heat exchanger is improved.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
Claims (10)
1. A novel shell-and-tube heat exchanger is characterized by comprising:
the shell is cylindrical, one end of the shell is provided with an opening, and the other end of the shell is provided with a seal head; the shell is provided with an air inlet and an air outlet;
the tube box is arranged on the opening of the shell and comprises a tube box flat cover and a tube box body, one end of the tube box body is provided with the opening, the other end of the tube box body is connected to the opening of the shell through a flange, the tube box flat cover is arranged on the tube box body and forms a cooling liquid cavity together with the tube box body, and the tube box body is provided with a cooling liquid inlet and a cooling liquid outlet;
the tube bundle assembly is arranged in the shell and comprises a tube plate and a U-shaped tube bundle arranged on the tube plate, the U-shaped tube bundle is sealed with the cooling liquid cavity through the tube plate, and the U-shaped tube bundle is communicated with the cooling liquid cavity;
and the baffle plate is arranged in the shell through a support rod and is perpendicular to the length direction of the tube bundle.
2. A novel shell and tube heat exchanger according to claim 1, characterized in that a heat insulating plate is arranged in the cooling liquid cavity, and the cooling liquid inlet and the cooling liquid outlet are respectively arranged at two sides of the heat insulating plate.
3. A novel shell and tube heat exchanger as recited in claim 1 wherein said coolant inlet is disposed on a bottom surface of said tube box body and said coolant outlet is disposed on a top surface of said tube box body.
4. A shell and tube heat exchanger according to claim 1, characterized in that saddles are provided on the bottom surface of the shell, the saddles comprising a first saddle and a second saddle arranged symmetrically, the saddles comprising a bottom plate and two support plates provided on the top surface of the bottom plate, a reinforcement plate being provided between the support plates; the bottom plate of the first saddle is provided with a bolt hole, and the second saddle is provided with a long hole.
5. A novel shell and tube heat exchanger according to claim 4, characterized in that the side of the strengthening plate is provided with a grounding plate.
6. A novel shell and tube heat exchanger as claimed in claim 1, wherein lifting lugs are provided on the top surface of the shell.
7. A novel shell and tube heat exchanger according to claim 1, characterized in that the shell is provided with a pressure gauge port.
8. A novel shell and tube heat exchanger as claimed in claim 1, wherein the gas inlet is provided on the top surface of the shell and the gas outlet is provided on the bottom surface of the shell.
9. A novel shell and tube heat exchanger as claimed in claim 1, wherein outlet pipes are provided on the air inlet, the air outlet, the coolant inlet and the coolant outlet, the outlet pipes comprise a right-angle elbow and a horizontal straight pipe connected with the right-angle elbow, and support angle steel is provided between the horizontal branch pipe and the outer circumferential surface of the shell and the tube box body.
10. A novel shell and tube heat exchanger as claimed in claim 1, wherein the tube box body is integrally forged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121258541.6U CN215373620U (en) | 2021-06-07 | 2021-06-07 | Novel shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121258541.6U CN215373620U (en) | 2021-06-07 | 2021-06-07 | Novel shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215373620U true CN215373620U (en) | 2021-12-31 |
Family
ID=79633552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121258541.6U Active CN215373620U (en) | 2021-06-07 | 2021-06-07 | Novel shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215373620U (en) |
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2021
- 2021-06-07 CN CN202121258541.6U patent/CN215373620U/en active Active
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