CN213528677U

CN213528677U - Mercury-free catalyst chloroethylene converter

Info

Publication number: CN213528677U
Application number: CN202022494529.7U
Authority: CN
Inventors: 孙爱荣; 李洪川; 许平; 黄义军; 卢伟; 李俊松
Original assignee: Hubei Changfa Vessel Manufacturing Co ltd
Current assignee: Hubei Changfa Vessel Manufacturing Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-25
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a mercury-free catalyst chloroethylene converter, it includes the vertical jar of body, and sets up the inlet tube and the outlet pipe at both ends about the jar body, the internal fixedly connected with of jar goes up the tube sheet and is located the lower tube sheet of top tube sheet below, go up the tube sheet with be connected with a plurality of tubulations down between the tube sheet, the internal fixedly connected with that goes back of jar is located go up a plurality of first connecting pipes of fixedly connected with on the first mounting panel of tube sheet below and the first mounting panel, pass the upper end of first connecting pipe go up the tube sheet and extend to top tube sheet top, lower extreme extend to first mounting panel below. The utility model discloses can keep apart the gaseous and hot water of HCL who leaks effectively, avoid forming hydrochloric acid and continue to corrode the tubulation to reduce the dangerous degree that HCL gas leakage caused the converter operation.

Description

Mercury-free catalyst chloroethylene converter

Technical Field

The utility model relates to a chloroethylene converter technical field especially relates to a mercury-free catalyst chloroethylene converter.

Background

In the chloroethylene production process, the converter is key equipment, a plurality of tubes for material flowing are arranged in the converter, the tubes are vertically arranged in the converter (the shell of the converter is generally of a vertical tank-shaped structure), the upper end and the lower end of each tube are respectively communicated with an upper tube plate and a lower tube plate, the materials enter the lower tube plate through an inlet tube arranged on the shell of the converter and then enter the tubes to exchange heat with heat exchange media (hot water) in the converter, and finally the materials leave from an outlet tube arranged on the shell of the converter.

Because the material contains HCL gas with extremely high corrosivity, the connecting part of the tube nest and the upper and lower tube plates is easy to corrode, once corrosion occurs, HCL gas in the tube nest can enter the converter to form hydrochloric acid together with hot water, so that corrosion of the vertical tube is further caused, and great danger is brought to normal operation of the converter.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a mercury-free catalyst chloroethylene converter, it has solved among the prior art behind HCL gas corrosion tube array and the last tube sheet junction easily with the hot water formation hydrochloric acid in the converter continue to corrode the problem of tube array.

According to the embodiment of the utility model, a mercury-free catalyst chloroethylene converter, it includes the vertical jar of body, and sets up the inlet tube and the outlet pipe at jar body upper and lower both ends, the internal fixedly connected with of jar goes up the tube sheet and is located the lower tube sheet of last tube sheet below, go up the tube sheet with be connected with a plurality of tubulations down between the tube sheet, the internal still fixedly connected with of jar is located go up a plurality of first connecting pipes of fixedly connected with on the first mounting panel of tube sheet below and the first mounting panel, pass the upper end of first connecting pipe go up the tube sheet and extend to last tube sheet top, lower extreme extend to first mounting panel below.

Among the above-mentioned technical scheme, the tube nest is connected with the lower plate surface of last tube sheet, and after tube sheet and tube nest junction were gone up in the gaseous corrosion of HCL, the gaseous HCL entered into between last tube sheet and the first mounting panel, the internal hot water of jar then flows between first mounting panel below space and last tube sheet top space through the first connecting pipe that sets up, can not get into between last tube sheet and the first mounting panel with the gaseous contact of HCL who leaks to avoid forming hydrochloric acid further to corrode the tube nest.

Compared with the prior art, the utility model discloses following beneficial effect has:

the leakage HCL gas can be effectively isolated from hot water, and the formation of hydrochloric acid is avoided to continuously corrode the tube nest, so that the risk degree of HCL gas leakage to the operation of the converter is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

in the above drawings:

jar body 1, inlet tube 2, outlet pipe 3, go up tube sheet 4, lower tube sheet 5, tubulation 6, first mounting panel 7, first communicating pipe 8, first blast pipe 9, first mounting panel 10, second are gone up mounting panel 11, second communicating pipe 12, second blast pipe 13, second mounting panel 14, inlet pipe 15, discharging pipe 16 down.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides a mercury-free catalyst vinyl chloride converter, which includes a vertical tank 1, and a water inlet pipe 2 and a water outlet pipe 3 which are arranged at the upper end and the lower end of the tank body 1 and are used for the heat exchange medium (hot water) to enter and exit the tank body 1, an upper tube plate 4 and a lower tube plate 5 positioned below the upper tube plate 4 are fixedly connected in the tank body 1, a plurality of tubes 6 are connected between the upper tube plate 4 and the lower tube plate 5, a first lower mounting plate 7 positioned below the upper tube plate 4 is fixedly connected in the tank body 1, a plurality of first communicating pipes 8 are fixedly connected on the first lower mounting plate 7, the upper end of the first communicating pipe 8 penetrates through the upper tube plate 4 and extends to the position above the upper tube plate 4, the lower end of the first communicating pipe 8 extends to the position below the first lower mounting plate 7, and the first communicating pipe 8 is used for allowing the entering hot water to pass through so that the hot water can smoothly enter the space below the first lower mounting plate 7 to exchange heat with the materials in the tubes 6;

wherein, be provided with the confession on the last tube sheet 4 first connecting hole that first connecting pipe 8 passed, and first connecting hole and last tube sheet 4 do not communicate, can guarantee not communicating between first connecting pipe 8 and the last tube sheet 4 like this, avoid hot water and the gaseous contact of HCL.

In the above embodiment, the tank body 1 is further provided with a feeding pipe 15 and a discharging pipe 16 respectively communicated with the upper pipe plate 4 and the lower pipe plate 5; the tube array 6 is connected with the lower plate surface of the upper tube plate 4, when the upper tube plate 4 is corroded at the joint of the tube array 6 by the HCL gas, the HCL gas enters between the upper tube plate 4 and the first lower mounting plate 7, the hot water in the tank body 1 flows between the space below the first lower mounting plate 7 and the space above the upper tube plate 4 through the arranged first communication pipe 8, and cannot enter between the upper tube plate 4 and the first lower mounting plate 7 to contact with the leaked HCL gas, so that the tube array 6 is prevented from being further corroded by the formed hydrochloric acid;

wherein, in order to avoid the gaseous accumulation in jar body 1 of HCL, jar body 1 go up still fixedly connected with go up tube sheet 4 and jar body 1 can be derived through first blast pipe 9 to the gas of leaking on the body 1 of first mounting panel 7 space intercommunication, avoids the gaseous tubulation 6 of HCL to cause further corruption, can also have gas leakage in the quick judgement jar body 1 through whether having gas outflow in first blast pipe 9 like this simultaneously, further guarantees the operation safety of converter.

Preferably, still fixedly connected with is located in jar body 1 go up the first mounting panel 10 of upper tube plate 4 top, just the upper end of first connecting pipe 8 with first last mounting panel 10 fixed connection and with the space intercommunication above the first mounting panel 10, first upper mounting panel 10 and first mounting panel 7 will go up tube plate 4 clamp in the middle, can further reduce the gaseous probability that contacts with the hot water of HCL.

In order to avoid contacting the HCL gas leaked from the joint of the lower tube plate 5 and the tube nest 6 with the hot water, preferably, the tank body 1 is internally further fixedly connected with a lower tube plate 5 and a second upper mounting plate 11 between the first lower mounting plates 7, the second upper mounting plate 11 is fixedly connected with a plurality of second communicating tubes 12, the upper ends of the second communicating tubes 12 are communicated with the second upper mounting plate 11 and the space between the first lower mounting plates 7 and the lower ends of the second upper mounting plates are communicated with the lower tube plate 5, wherein the lower tube plate 5 is provided with a second connecting hole for the second communicating tube 12 to pass through, and the second connecting hole is not communicated with the lower tube plate 5.

Similarly, the leaked gas is between the second upper mounting plate 11 and the lower tube plate 5 and does not contact with the hot water, a second exhaust pipe 13 communicating with the space between the lower tube plate 5 and the second upper mounting plate 11 is fixedly connected to the tank 1 for leading out the HCL gas between the lower tube plate 5 and the second upper mounting plate 11,

whether gas leakage exists in the tank body 1 can be known through the condition in the second exhaust pipe 13, and the operation safety of the converter is ensured.

Preferably, a second lower mounting plate 14 located below the lower tube plate 5 is further fixedly connected in the tank body 1, and the lower end of the second communicating tube 12 is fixedly connected with the second lower mounting plate 14 and is communicated with a space below the second lower mounting plate 14. The second upper mounting plate 11 and the second lower mounting plate 14 sandwich the lower tube plate 5, also to further reduce the chance of contacting the HCL gas with the hot water.

Compared with the prior art, the converter provided by the embodiment has the following beneficial effects:

the leaked HCL gas can be effectively isolated from hot water, and the formation of hydrochloric acid is avoided from continuously corroding the tube nest 6, so that the risk degree of HCL gas leakage to the operation of the converter is reduced;

meanwhile, the HCL gas leakage condition can be timely led out and perceived, and the operation safety of the converter is ensured to the maximum extent.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a mercury-free catalyst chloroethylene converter, includes the vertical jar of body, and sets up the inlet tube and the outlet pipe at jar body upper and lower both ends, jar internal fixedly connected with goes up the tube sheet and is located the lower tube sheet of last tube sheet below, go up the tube sheet with be connected with a plurality of tubulations down between the tube sheet, a serial communication port, jar internal still fixedly connected with is located go up the first mounting panel of tube sheet below and a plurality of first connecting pipes of fixedly connected with on the first mounting panel down, pass the upper end of first connecting pipe go up the tube sheet and extend to last tube sheet top, lower extreme extend to first mounting panel below.

2. A mercury-free catalyst vinyl chloride converter as claimed in claim 1, wherein a first upper mounting plate is fixedly connected to the inside of the tank body above the upper tube plate, and an upper end of the first communication tube is fixedly connected to the first upper mounting plate and communicates with a space above the first upper mounting plate.

3. A mercury-free catalyst vinyl chloride converter as claimed in claim 2, wherein the upper tube plate is provided with a first connection hole through which the first connection pipe passes, and the first connection hole is not communicated with the upper tube plate.

4. A mercury-free catalyst vinyl chloride converter as claimed in any one of claims 1 to 3, wherein a first exhaust pipe is fixedly connected to the tank and communicates with a space between the upper pipe plate and the first lower mounting plate.

5. The mercury-free catalyst vinyl chloride converter as claimed in claim 1, wherein a second upper mounting plate is fixedly connected to the tank body between the lower tube plate and the first lower mounting plate, a plurality of second communicating tubes are fixedly connected to the second upper mounting plate, upper ends of the second communicating tubes are communicated with a space between the second upper mounting plate and the first lower mounting plate, and lower ends of the second communicating tubes pass through the lower tube plate.

6. The mercury-free catalyst vinyl chloride converter as claimed in claim 5, wherein the lower tube plate is provided with a second connection hole through which the second connection tube passes, and the second connection hole is not connected to the lower tube plate.

7. A mercury-free catalyst vinyl chloride converter as claimed in claim 6 wherein a second exhaust pipe is fixedly connected to the tank and communicates with the space between the lower tube sheet and the second upper mounting plate.

8. The mercury-free catalyst vinyl chloride converter as claimed in any one of claims 5 to 7, wherein a second lower mounting plate is fixedly connected to the tank body below the lower tube plate, and a lower end of the second communicating tube is fixedly connected to the second lower mounting plate and communicates with a space below the second lower mounting plate.