Novel fuel oil heater

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a novel fuel oil heater which completes switching between a first heat exchanger and a second heat exchanger, unkeep and clean the first heat exchanger while continuously heating raw oil, and improve convenience. Comprising a first heat exchanger, a second heat exchanger, supporting seats, an oil inlet assembly, an oil outlet assembly, a medium input assembly and a medium output assembly, the bottom end of the first heat exchanger and the bottom end of the second heat exchanger are each provided with a set of supporting seats, and the two output ends of the oil inlet assembly communicate with the tube pass input ends of the first heat exchanger and the second heat exchanger correspondingly; the tube pass output ends of the first heat exchanger and the second heat exchanger communicate with the two input ends of the oil outlet assembly correspondingly, the medium input assembly communicates with the shell pass input ends of the first heat exchanger and the second heat exchanger correspondingly, and the shell pass output ends of the first heat exchanger and the second heat exchanger communicate with the two input ends of the medium output assembly correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a novel fuel heater. Background Art

[0002] In the production process of heavy oil or residual oil in the fuel system of refineries or power plants, in order to achieve the required viscosity, it is often necessary to heat it in order to improve fluidity.

[0003] In the prior art, a patent document with a publication number of CN211120770U discloses a shell-and-tube heat exchanger, comprising: a cylinder, a first head, a second head, a first tube sheet, a second tube sheet, a heat exchange tube, a baffle, a material inlet, a heat medium inlet, a material outlet, and a heat medium outlet. The first head and the second head are respectively connected to the cylinder through flanges, the first tube sheet and the second tube sheet are respectively fixedly mounted on the left and right sides of the cylinder, the material inlet and the material outlet are respectively arranged in the middle of the first head and the second sealing head, and the heat medium inlet and the heat medium outlet are respectively arranged on the upper right side and the lower left side of the cylinder.

[0004] During use, it was found that when the heat exchanger was clogged and needed to be cleaned and repaired, the entire operation had to be stopped, which resulted in a waste of time and resources while affecting the heating efficiency of the heavy oil or residual oil. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a new fuel heater with improved convenience.

[0006] The utility model discloses a novel fuel oil heater, comprising a first heat exchanger, a second heat exchanger and a support base, wherein a group of support bases are respectively arranged at the bottom ends of the first heat exchanger and the second heat exchanger, and further comprising an oil inlet assembly, an oil outlet assembly, a medium input assembly and a medium output assembly, wherein two groups of output ends of the oil inlet assembly are respectively communicated with the tube side input ends of the first heat exchanger and the second heat exchanger, the tube side output ends of the first heat exchanger and the second heat exchanger are respectively communicated with the two groups of input ends of the oil outlet assembly, the medium input assembly is respectively communicated with the shell side input ends of the first heat exchanger and the second heat exchanger, and the shell side output ends of the first heat exchanger and the second heat exchanger are respectively communicated with the two groups of input ends of the medium output assembly; when in use, the raw oil passes through The high-temperature medium enters the tube side of the No. 1 heat exchanger through the oil inlet assembly and does not enter the No. 2 heat exchanger. Then, the high-temperature medium enters the shell side of the No. 1 heat exchanger through the medium input assembly and does not enter the shell side of the No. 2 heat exchanger, so that the high-temperature medium heats the raw oil inside the No. 1 heat exchanger. When the No. 1 heat exchanger needs to be cleaned, the raw oil enters the shell side of the No. 2 heat exchanger through the oil inlet assembly and does not enter the No. 1 heat exchanger. The high-temperature medium enters the shell side of the No. 2 heat exchanger through the medium input assembly and does not enter the shell side of the No. 1 heat exchanger, thereby completing the switching of the No. 1 heat exchanger and the No. 2 heat exchanger. While the raw oil is continuously heated, the No. 1 heat exchanger can be inspected and cleaned, thereby improving convenience.

[0007] Preferably, the oil inlet assembly includes an oil inlet pipe, a No. 1 three-way pipe, an oil delivery pipe and an oil delivery valve. The output end of the oil inlet pipe is connected to the input end of the No. 1 three-way pipe, the two groups of output ends of the No. 1 three-way pipe are respectively connected to the input ends of the two groups of oil delivery pipes, the output ends of the two groups of oil delivery pipes are respectively connected to the pipe input ends of the No. 1 heat exchanger and the No. 2 heat exchanger, and an oil delivery valve is provided on each group of oil delivery pipes. When it is necessary to allow the crude oil to enter the No. 1 heat exchanger or the No. 2 heat exchanger, the adjustment of the crude oil entering the No. 1 heat exchanger or the No. 2 heat exchanger can be achieved by adjusting the No. 1 oil delivery valve on the oil delivery pipe connected to the No. 1 heat exchanger or the No. 2 heat exchanger, thereby improving flexibility.

[0008] Preferably, the oil outlet assembly includes an oil drain pipe, an oil drain valve and a No. 2 three-way pipe. The pipe output ends of the No. 1 heat exchanger and the No. 2 heat exchanger are respectively connected to the input ends of a group of oil drain pipes, and the output ends of the two groups of oil drain pipes are respectively connected to the two groups of input ends of the No. 2 three-way pipe, and each group of oil drain pipes is respectively provided with a group of oil drain valves. According to the usage of the No. 1 heat exchanger or the No. 2 heat exchanger, the staff opens the oil drain valve on the oil drain pipe connected to the No. 1 heat exchanger or the No. 2 heat exchanger of the staff, so as to realize the switching of the No. 1 heat exchanger and the No. 2 heat exchanger, thereby improving flexibility.

[0009] Preferably, the medium input assembly includes an input pipe, a No. 3 tee, a delivery pipe and a delivery valve. The output end of the input pipe is connected to the input end of the No. 3 tee. The two groups of output ends of the No. 3 tee are respectively connected to the input end of a group of delivery pipes. The output ends of the two groups of delivery pipes are respectively connected to the shell side input ends of the No. 1 heat exchanger and the No. 2 heat exchanger. A group of delivery valves is provided on each group of delivery pipes. When the No. 1 heat exchanger is used, the delivery valve on the delivery pipe connected to the No. 1 heat exchanger is opened and the delivery valve on the delivery pipe connected to the No. 2 heat exchanger is closed, so that the high-temperature steam enters the interior of the No. 1 heat exchanger through the input pipe, the No. 3 tee and the delivery pipe connected to the No. 1 heat exchanger, thereby improving flexibility.

[0010] Preferably, the medium output assembly includes an output pipe, an output valve and four tee pipes, the shell side output ends of the No. 1 heat exchanger and the No. 2 heat exchanger are respectively connected to the input ends of a group of output pipes, each group of output pipes is respectively provided with a group of output valves, and the output ends of the two groups of output pipes are respectively connected to the two groups of input ends of the No. 4 tee pipes; when the No. 1 heat exchanger is in use, the output valve on the output pipe connected to the No. 1 heat exchanger is opened and the output valve on the output pipe connected to the No. 2 heat exchanger is closed, thereby realizing the independent use of the No. 1 heat exchanger and the No. 2 heat exchanger and improving flexibility.

[0011] Preferably, it also includes a connecting pipe and a connecting valve, a connecting pipe is provided between the oil discharge pipe connected to the No. 1 heat exchanger and the oil delivery pipe connected to the No. 2 heat exchanger, and a connecting valve is installed on the connecting pipe; when it is necessary to increase the heating time or heating stroke of the crude oil, the connecting valve is opened, the output valve on the output pipe connected to the No. 1 heat exchanger is closed and the output valve on the output pipe connected to the No. 2 heat exchanger is opened, the oil delivery valve on the oil delivery pipe connected to the No. 1 heat exchanger is opened and the oil delivery valve on the oil delivery pipe connected to the No. 2 heat exchanger is closed, and the crude oil enters the pipe side of the No. 1 heat exchanger through the connecting pipe and enters the pipe side of the No. 2 heat exchanger, so that the high-temperature steam heats the crude oil in the No. 1 heat exchanger and the No. 2 heat exchanger, thereby improving flexibility.

[0012] Preferably, it also includes a drain pipe and a drain valve. A group of drain pipes are respectively arranged at the bottom ends of the No. 1 heat exchanger and the No. 2 heat exchanger, each group of drain pipes is respectively arranged with a drain valve, and the two groups of drain pipes are respectively connected with the shell side of the No. 1 heat exchanger and the No. 2 heat exchanger; when it is necessary to clean and repair the No. 1 heat exchanger or the No. 2 heat exchanger, open the corresponding drain valve to discharge the residual liquid in the shell side of the No. 1 heat exchanger or the No. 2 heat exchanger, thereby improving convenience.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when in use, the crude oil enters the tube side of the No. 1 heat exchanger through the oil inlet assembly and does not enter the No. 2 heat exchanger, and then the high-temperature medium enters the shell side of the No. 1 heat exchanger through the medium input assembly and does not enter the shell side of the No. 2 heat exchanger, so that the high-temperature medium heats the crude oil inside the No. 1 heat exchanger, and when the No. 1 heat exchanger needs to be cleaned, the crude oil enters the shell side of the No. 2 heat exchanger through the oil inlet assembly and does not enter the No. 1 heat exchanger, and the high-temperature medium enters the shell side of the No. 2 heat exchanger through the medium input assembly and does not enter the shell side of the No. 1 heat exchanger, thereby completing the switching of the No. 1 heat exchanger and the No. 2 heat exchanger, and while the crude oil is continuously heated, the No. 1 heat exchanger can be inspected and cleaned, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 yes Figure 2 A partial enlarged structural diagram of the middle part;

[0017] Figure 4 It is an enlarged structural diagram of the connecting pipe, the oil inlet pipe and other structures;

[0018] Figure 5 yes Figure 4 Schematic diagram of the partially enlarged structure of part B in the middle.

[0019] Markings in the attached figure: 1. Heat exchanger No. 1; 2. Heat exchanger No. 2; 3. Support seat; 4. Oil inlet pipe; 5. Tee No. 1; 6. Oil delivery pipe; 7. Oil delivery valve; 8. Oil drain pipe; 9. Oil drain valve; 10. Tee No. 2; 11. Inlet pipe; 12. Tee No. 3; 13. Delivery pipe; 14. Delivery valve; 15. Output pipe; 16. Output valve; 17. Tee No. 4; 18. Connecting pipe; 19. Connecting valve; 20. Drain pipe; 21. Drain valve. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figure 1 and Figure 2As shown, a novel fuel oil heater of the utility model comprises a No. 1 heat exchanger 1, a No. 2 heat exchanger 2 and a support seat 3, wherein a group of support seats 3 are respectively arranged at the bottom ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and further comprises an oil inlet assembly, an oil outlet assembly, a medium input assembly and a medium output assembly, wherein two groups of output ends of the oil inlet assembly are respectively connected with the tube side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and the tube side output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected with two groups of input ends of the oil outlet assembly, and the medium input assembly is respectively connected with the shell side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and the shell side output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected with two groups of input ends of the medium output assembly;

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the oil inlet assembly includes an oil inlet pipe 4, a No. 1 tee pipe 5, an oil delivery pipe 6 and an oil delivery valve 7. The output end of the oil inlet pipe 4 is connected to the input end of the No. 1 tee pipe 5. The two groups of output ends of the No. 1 tee pipe 5 are respectively connected to the input ends of the two groups of oil delivery pipes 6. The output ends of the two groups of oil delivery pipes 6 are respectively connected to the pipe input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2. Each group of oil delivery pipes 6 is respectively provided with an oil delivery valve 7.

[0024] like Figures 1 to 5 As shown, the oil outlet assembly includes an oil drain pipe 8, an oil drain valve 9 and a No. 2 tee pipe 10. The pipe output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected to the input ends of a group of oil drain pipes 8, and the output ends of the two groups of oil drain pipes 8 are respectively connected to the two groups of input ends of the No. 2 tee pipe 10. Each group of oil drain pipes 8 is respectively provided with a group of oil drain valves 9.

[0025] The medium input assembly includes an input pipe 11, a No. 3 tee pipe 12, a delivery pipe 13 and a delivery valve 14. The output end of the input pipe 11 is connected to the input end of the No. 3 tee pipe 12. The two groups of output ends of the No. 3 tee pipe 12 are respectively connected to the input end of a group of delivery pipes 13. The output ends of the two groups of delivery pipes 13 are respectively connected to the shell side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2. A group of delivery valves 14 are respectively provided on each group of delivery pipes 13.

[0026] The medium output assembly includes an output pipe 15, an output valve 16 and a No. 4 three-way pipe 17. The shell side output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected to the input ends of a group of output pipes 15. A group of output valves 16 are respectively provided on each group of output pipes 15. The output ends of the two groups of output pipes 15 are respectively connected to the two groups of input ends of the No. 4 three-way pipe 17.

[0027] In this embodiment, the oil delivery valve 7 on the oil delivery pipe 6 connected to the No. 1 heat exchanger 1, the oil drain valve 9 on the connected oil drain pipe 8, the delivery valve 14 on the connected delivery pipe 13 and the output valve 16 on the connected output pipe 15 are opened respectively, and the oil delivery valve 7 on the oil delivery pipe 6 connected to the No. 2 heat exchanger 2, the oil drain valve 9 on the connected oil drain pipe 8, the delivery valve 14 on the connected delivery pipe 13 and the output valve 16 on the connected output pipe 15 are closed respectively, so that the crude oil can be heated by the No. 1 heat exchanger 1, and the working states of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 can be switched by reverse operation.

[0028] Example 2

[0029] like Figure 1 and Figure 2 As shown, a novel fuel oil heater of the utility model comprises a No. 1 heat exchanger 1, a No. 2 heat exchanger 2 and a support seat 3, wherein a group of support seats 3 are respectively arranged at the bottom ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and further comprises an oil inlet assembly, an oil outlet assembly, a medium input assembly and a medium output assembly, wherein two groups of output ends of the oil inlet assembly are respectively connected with the tube side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and the tube side output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected with two groups of input ends of the oil outlet assembly, and the medium input assembly is respectively connected with the shell side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2, and the shell side output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected with two groups of input ends of the medium output assembly;

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the oil inlet assembly includes an oil inlet pipe 4, a No. 1 tee pipe 5, an oil delivery pipe 6 and an oil delivery valve 7. The output end of the oil inlet pipe 4 is connected to the input end of the No. 1 tee pipe 5. The two groups of output ends of the No. 1 tee pipe 5 are respectively connected to the input ends of the two groups of oil delivery pipes 6. The output ends of the two groups of oil delivery pipes 6 are respectively connected to the pipe input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2. Each group of oil delivery pipes 6 is respectively provided with an oil delivery valve 7.

[0031] like Figures 1 to 5 As shown, the oil outlet assembly includes an oil drain pipe 8, an oil drain valve 9 and a No. 2 tee pipe 10. The pipe output ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2 are respectively connected to the input ends of a group of oil drain pipes 8, and the output ends of the two groups of oil drain pipes 8 are respectively connected to the two groups of input ends of the No. 2 tee pipe 10. Each group of oil drain pipes 8 is respectively provided with a group of oil drain valves 9.

[0032] The medium input assembly includes an input pipe 11, a No. 3 tee pipe 12, a delivery pipe 13 and a delivery valve 14. The output end of the input pipe 11 is connected to the input end of the No. 3 tee pipe 12. The two groups of output ends of the No. 3 tee pipe 12 are respectively connected to the input end of a group of delivery pipes 13. The output ends of the two groups of delivery pipes 13 are respectively connected to the shell side input ends of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2. A group of delivery valves 14 are respectively provided on each group of delivery pipes 13.

[0033] The medium output assembly includes an output pipe 15, an output valve 16 and a fourth tee pipe 17. The shell side output ends of the first heat exchanger 1 and the second heat exchanger 2 are respectively connected to the input ends of a group of output pipes 15. Each group of output pipes 15 is provided with a group of output valves 16. The output ends of the two groups of output pipes 15 are respectively connected to the two groups of input ends of the fourth tee pipe 17.

[0034] It also includes a connecting pipe 18 and a connecting valve 19. A connecting pipe 18 is provided between the oil discharge pipe 8 connected to the first heat exchanger 1 and the oil delivery pipe 6 connected to the second heat exchanger 2. The connecting pipe 18 is provided with a connecting valve 19.

[0035] It also includes a drain pipe 20 and a drain valve 21. A group of drain pipes 20 are respectively arranged at the bottom end of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2. A drain valve 21 is respectively arranged on each group of drain pipes 20. The two groups of drain pipes 20 are respectively connected to the shell side of the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2.

[0036] In this embodiment, the oil delivery valve 7 on the oil delivery pipe 6 connected to the first heat exchanger 1, the oil discharge valve 9 on the connected oil discharge pipe 8, the delivery valve 14 on the connected delivery pipe 13 and the output valve 16 on the connected output pipe 15 are opened respectively, and the oil delivery valve 7 on the oil delivery pipe 6 connected to the second heat exchanger 2, the oil discharge valve 9 on the connected oil discharge pipe 8, the delivery valve 14 on the connected delivery pipe 13 and the output valve 16 on the connected output pipe 15 are closed respectively, so that the raw oil can be heated by the first heat exchanger 1, and the reverse operation can be performed to heat the first heat exchanger 1 and the second heat exchanger 2. Switching of the working state, when it is necessary to increase the heating time or heating stroke of the crude oil, open the connecting valve 19, close the output valve 16 on the output pipe 15 connected to the No. 1 heat exchanger 1 and open the output valve 16 on the output pipe 15 connected to the No. 2 heat exchanger 2, open the oil delivery valve 7 on the oil delivery pipe 6 connected to the No. 1 heat exchanger 1 and close the oil delivery valve 7 on the oil delivery pipe 6 connected to the No. 2 heat exchanger 2, and the crude oil enters the pipe side of the No. 1 heat exchanger 1 and enters the pipe side of the No. 2 heat exchanger 2 through the connecting pipe 18, so that the high-temperature steam heats the crude oil in the No. 1 heat exchanger 1 and the No. 2 heat exchanger 2.

[0037] The first heat exchanger 1 and the second heat exchanger 2 of the novel fuel oil heater of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in the field to make creative efforts.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A novel fuel oil heater, comprising a first heat exchanger (1), a second heat exchanger (2) and a support base (3), wherein a group of support bases (3) are respectively arranged at the bottom ends of the first heat exchanger (1) and the second heat exchanger (2), and characterized in that: It also comprises an oil inlet assembly, an oil outlet assembly, a medium input assembly and a medium output assembly, wherein the two groups of output ends of the oil inlet assembly are respectively connected to the tube side input ends of the first heat exchanger (1) and the second heat exchanger (2), the tube side output ends of the first heat exchanger (1) and the second heat exchanger (2) are respectively connected to the two groups of input ends of the oil outlet assembly, the medium input assembly is respectively connected to the shell side input ends of the first heat exchanger (1) and the second heat exchanger (2), and the shell side output ends of the first heat exchanger (1) and the second heat exchanger (2) are respectively connected to the two groups of input ends of the medium output assembly; The oil inlet assembly comprises an oil inlet pipe (4), a No. 1 three-way pipe (5), an oil delivery pipe (6) and an oil delivery valve (7); the output end of the oil inlet pipe (4) is connected to the input end of the No. 1 three-way pipe (5); the two groups of output ends of the No. 1 three-way pipe (5) are respectively connected to the input ends of the two groups of oil delivery pipes (6); the output ends of the two groups of oil delivery pipes (6) are respectively connected to the pipe-side input ends of the No. 1 heat exchanger (1) and the No. 2 heat exchanger (2); and each group of oil delivery pipes (6) is provided with an oil delivery valve (7); The oil outlet assembly comprises an oil outlet pipe (8), an oil outlet valve (9) and a second three-way pipe (10); the pipe-side output ends of the first heat exchanger (1) and the second heat exchanger (2) are respectively connected to the input ends of a group of oil outlet pipes (8); the output ends of the two groups of oil outlet pipes (8) are respectively connected to the two groups of input ends of the second three-way pipe (10); and each group of oil outlet pipes (8) is respectively provided with a group of oil outlet valves (9); The invention also comprises a connecting pipe (18) and a connecting valve (19); a connecting pipe (18) is provided between the oil discharge pipe (8) connected to the first heat exchanger (1) and the oil delivery pipe (6) connected to the second heat exchanger (2); and a connecting valve (19) is installed on the connecting pipe (18).

2. A novel fuel heater as claimed in claim 1, characterized in that: The medium input assembly comprises an input pipe (11), a third tee pipe (12), a delivery pipe (13) and a delivery valve (14); the output end of the input pipe (11) is connected to the input end of the third tee pipe (12); the two groups of output ends of the third tee pipe (12) are respectively connected to the input end of a group of delivery pipes (13); the output ends of the two groups of delivery pipes (13) are respectively connected to the shell side input ends of the first heat exchanger (1) and the second heat exchanger (2); and each group of delivery pipes (13) is provided with a group of delivery valves (14).

3. A novel fuel heater as claimed in claim 1, characterized in that: The medium output assembly comprises an output pipe (15), an output valve (16) and four three-way pipes (17); the shell side output ends of the first heat exchanger (1) and the second heat exchanger (2) are respectively connected to the input ends of a group of output pipes (15); each group of output pipes (15) is provided with a group of output valves (16); the output ends of the two groups of output pipes (15) are respectively connected to the two groups of input ends of the four three-way pipes (17).

4. A novel fuel oil heater as claimed in claim 1, characterized in that: The heat exchanger further comprises a sewage discharge pipe (20) and a sewage discharge valve (21). The bottom ends of the first heat exchanger (1) and the second heat exchanger (2) are respectively provided with a group of sewage discharge pipes (20). Each group of sewage discharge pipes (20) is respectively provided with a sewage discharge valve (21). The two groups of sewage discharge pipes (20) are respectively communicated with the shell side of the first heat exchanger (1) and the second heat exchanger (2).

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