Economical single-hole combustion chamber temperature adjusting device

Abstract

The utility model relates to the technical field of coke oven heating, in particular to an economical single-hole combustion chamber temperature adjusting device, which is characterized in that the input end of each heating gas unit I and the input end of each heating gas unit II are respectively connected with a heating gas main pipe; the output end of each first coal gas heating unit and the output end of each second coal gas heating unit are connected with the corresponding combustion chamber, one end of each adjusting unit is connected with the corresponding first coal gas heating unit, and the other end of each adjusting unit is connected with the corresponding second coal gas heating unit. The utility model has the advantages that the structure realizes the communication of the two heating gas main pipes, one regulating valve can be adopted to complete the flow regulation of the two gas heating pipes in the same combustion chamber, and the on-line maintenance and manual regulation are realized by changing the opening position of the T-shaped plug valve; the regulating valve is connected with the stop valve through the three-way connector, it is guaranteed that the regulating valve can be detached at any time when breaking down, and normal production is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coke oven heating technical field especially relates to an economic single -hole combustion chamber temperature regulating device. BACKGROUND

[0002] Single -hole combustion chamber temperature regulation is a popular technology of current coke oven heating, and the mainstream method is to increase the regulating valve between the regulating plug of each hole combustion chamber, the hole plate box or the hole plate box, the exchange plug. In the prior art, the patent name of the announcement number CN221051793U is "a coke oven single -hole combustion chamber temperature regulating device", including coal gas horizontal pipe, exchange plug, branch pipe plus minus plug, hole plate box and coke oven gas main pipe, the coal gas horizontal pipe is connected exchange plug through pipeline in vertical direction, exchange plug is connected branch pipe plus minus plug through pipeline, hole plate box is arranged on the pipeline of exchange plug and branch pipe plus minus plug, branch pipe plus minus plug is connected coke oven gas main pipe through pipeline, it is characterized in that, still include regulating valve, hand valve, regulating valve cylinder, regulating controller, gas source pipe, signal cable and cable bridge, regulating valve is arranged on the pipeline between exchange plug and hole plate box, regulating valve inlet end connects hand valve, the inlet end of hand valve connects regulating valve cylinder, the air inlet end of regulating valve cylinder is connected gas source main pipe through gas source pipe, and the electric signal line of regulating valve cylinder connects regulating controller IO port, and the signal cable of regulating controller is connected to control system through cable bridge;Defects are as follows:

[0003] 1, the size of regulating valve is big, can only realize coarse adjustment, and the adjusting effect is not remarkable;

[0004] 2, because the number of coke oven combustion chamber is numerous, taking a 65 hole carbonization chamber 6.25m ramming coke oven as an example, 132 DN100 regulating valves are needed, whether investment cost, maintenance workload or later energy consumption is very high, and the factory owner is brought huge economic pressure. SUMMARY

[0005] The utility model discloses a kind of economic single -hole combustion chamber temperature regulating device, connect one small-bore regulating valve between heating coal gas unit one, heating coal gas unit two, substantially reduce the quantity of regulating valve, improve regulating effect.

[0006] To achieve the above object, the utility model realizes by the following technical scheme:

[0007] The utility model provides an economic single -hole combustion chamber temperature adjusting device, including heating gas unit one, heating gas unit two, adjusting gas pipeline, adjusting unit, the input of each heating gas unit one and the input of heating gas unit two are connected with heating gas main pipe respectively, the output of each heating gas unit one and the output of heating gas unit two are connected with corresponding combustion chamber, one end of adjusting unit is connected with corresponding heating gas unit one, the other end of adjusting unit is connected with corresponding heating gas unit two.

[0008] Adjusting unit includes branch pipe one, branch pipe two, branch pipe three, one end of branch pipe one and branch pipe two is connected with corresponding heating gas unit one respectively, the other end of branch pipe one and branch pipe two is connected with corresponding heating gas unit two respectively, one end of branch pipe three is connected with branch pipe one, the other end of branch pipe three is connected with branch pipe two.

[0009] Heating gas unit one is equipped with adjusting cock A, orifice box A, exchange cock A from below to above in proper order, and heating gas unit two is equipped with adjusting cock B, orifice box B, exchange cock B from below to above in proper order, and T type cock valve is arranged on branch pipe one, and the pipeline connection of orifice box A, exchange cock A is connected with the first pass of T type cock valve, and the pipeline connection of orifice box B, exchange cock B is connected with the second pass of T type cock valve, and the third pass of T type cock valve is connected with one end of branch pipe three.

[0010] Branch pipe three is equipped with adjusting valve, stop valve D from below to above in proper order, and the pipeline connection between adjusting valve and stop valve D is connected with one end of stop valve C, and the other end of stop valve C is communicated with steam purging pipeline.

[0011] Stop valve A, stop valve B, three-way joint are arranged on branch pipe two, and the remaining two ends of three-way joint are connected with stop valve A, stop valve B respectively, and the remaining end of three-way joint is connected with the other end of branch pipe three.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1, T type cock valve is arranged on branch pipe one, and the pipeline connection of orifice box A, exchange cock A is connected with the first pass of T type cock valve, and the pipeline connection of orifice box B, exchange cock B is connected with the second pass of T type cock valve, and the third pass of T type cock valve is connected with branch pipe three, which realizes the intercommunication of two heating gas main pipes, can adopt one adjusting valve to complete the flow regulation of two gas heating pipelines of same combustion chamber, realizes on-line repair and manual adjustment by changing the opening position of T type cock valve,

[0014] 2, stop valve D is arranged between adjusting valve and T type cock valve, and adjusting valve is connected with stop valve A, stop valve B respectively by three-way joint, which guarantees that adjusting valve can be disassembled at any time when fault occurs, and does not influence normal production.

[0015] 3. The cut-off valve A and cut-off valve B are connected with the regulating cock heating gas pipeline at one end, and connected with the regulating valve through the tee joint at the other end, which can realize the mutual switching of the working loop and standby loop of the heating gas pipeline at any time;

[0016] 4. The cut-off valve C is arranged between the regulating valve and the cut-off valve D, and the cut-off valve C can realize the online steam blowing of the heating gas pipeline, so as to prevent the heating gas pipeline and valve from being blocked by tar and naphthalene;

[0017] 5. A small-diameter regulating valve is connected between the heating gas pipeline I and the heating gas pipeline II, which does not affect the regulating effect, reduces the size of the regulating valve, greatly reduces the number of regulating valves, and reduces the investment cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an economic single-hole combustion chamber temperature regulating device and a use method schematic view.

[0019] Figure 2 It is a process operation schematic view in the A route working and B route standby state.

[0020] Figure 3 It is a process operation schematic view in the B route working and A route standby state.

[0021] Figure 4 It is a process operation schematic view in the A route maintenance state.

[0022] Figure 5 It is a process operation schematic view in the B route maintenance state.

[0023] Figure 6 It is a regulating valve maintenance process operation schematic view.

[0024] Figure 7 It is a device schematic view in which the regulating valve is used to replace the orifice plate.

[0025] Figure 8 It is a T-shaped cock working schematic view.

[0026] In the figure: 1-regulating cock A, 2-orifice plate box A, 3-exchange cock A, 4-tee joint A, 5-regulating cock B, 6-orifice plate box B, 7-exchange cock B, 8-tee joint B, 9-T-shaped cock valve, 10-regulating valve, 11-cut-off valve A, 12-cut-off valve B, 13-cut-off valve C, 14-cut-off valve D, 15-tee joint. DETAILED DESCRIPTION

[0027] The utility model will be described in detail below in combination with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

[0028] The following examples are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are all conventional methods unless otherwise specified.

[0029] Example 1

[0030] An economical single-hole combustion chamber temperature adjusting device, as shown in Figure 1 , comprising heating gas unit one, heating gas unit two, adjusting gas pipeline, adjusting unit, the input end of each heating gas unit one and the input end of heating gas unit two are connected with the heating gas main pipe respectively, the output end of each heating gas unit one and the output end of heating gas unit two are connected with the corresponding combustion chamber, adjusting cock A1, orifice plate box A2, exchange cock A3 are sequentially arranged on the pipeline of heating gas unit one from bottom to top, the remaining two ends of three-way joint A4 are connected with orifice plate box A2 and exchange cock A3 respectively, adjusting cock B5, orifice plate box B6, exchange cock B7 are sequentially arranged on the pipeline of heating gas unit two from bottom to top, the remaining two ends of three-way joint B8 are connected with orifice plate box B6 and exchange cock B7 respectively, the adjusting unit comprises branch pipe one, branch pipe two and branch pipe three, T-shaped cock valve 9 is arranged on the branch pipe one, stop valve A11, stop valve B12 and three-way joint 15 are arranged on the branch pipe two, adjusting valve 10 and stop valve D14 are sequentially arranged on the branch pipe three from bottom to top, the pipeline connection between adjusting valve 10 and stop valve D14 is connected with one end of stop valve C13, the other end of stop valve C13 is communicated with the steam purging pipeline, the remaining one end of three-way joint A4 is connected with the first passage of T-shaped cock valve 9, the remaining one end of three-way joint B8 is connected with the second passage of T-shaped cock valve 9, the third passage of T-shaped cock valve 9 is connected with one end of the branch pipe three, the remaining two ends of three-way joint 15 are connected with stop valve A11 and stop valve B12 respectively, the remaining one end of three-way joint 15 is connected with the other end of the branch pipe three.

[0031] The adjusting valve 10 is selected from a pneumatic adjusting valve or an electric adjusting valve, a single seat valve or a butterfly valve or a V-shaped ball valve, the size is between DN15 and DN40, the flow adjusting range is adjustable, the design temperature of the adjusting valve 10 is 200°C, the design pressure of the adjusting valve 10 is 1MPa; the positioner of the adjusting valve 10 is explosion-proof, the valve position of the adjusting valve 10 can be kept when a fault occurs, and a valve position feedback signal can be output.

[0032] The stop valve D14 is used to replace the adjusting valve 10 during production, the size of the stop valve D14 is the same as the pipe diameter of the branch pipe three where the adjusting valve 10 is located, and the stop valve C13 is used for steam purging.

[0033] Working process:

[0034] T type cock valve 9 includes 0°, 90°, 180° three positions, 0°, 180° for maintenance state, 90° for working state, see Figure 8 ; T type cock valve 9, stop valve A11, stop valve B12, stop valve C13, stop valve D14 are arranged for switching of working circuit, standby circuit, purging, maintenance state, see Figures 2-6 . Economic single-hole combustion chamber temperature control includes normal working condition control, steam purging state control, maintenance state control, as follows:

[0035] 1) see Figure 2 , circuit A works, circuit B standby state process operation flow:

[0036] When working normally, adjust T type cock valve 9 to 90°, when adjusting cock A1, orifice plate box A2, exchange cock A3, exchange cock B7, regulating valve 10 work, adjusting cock B4, orifice plate box B5 is standby, at this time adjusting cock B5, stop valve B12, stop valve D14 is closed, adjusting cock A1, stop valve A11, stop valve C13 is opened; When the switch drives the exchange cock A3 to open, the exchange cock B7 is automatically closed, at this time the adjusting cock A1, orifice plate box A2, exchange cock A3 in the main heating gas circuit are connected, the adjusting cock A1, stop valve A11, regulating valve 10, stop valve C13, T type cock valve 9, exchange cock A3 in the branch heating gas circuit are connected; After a period of time, the switch is reversed, when the exchange cock A3 is closed, the exchange cock B7 is opened, at this time the adjusting cock A1, orifice plate box A2, T type cock valve 9, exchange cock B7 in the main heating gas circuit are connected, the adjusting cock A1, stop valve A11, regulating valve 10, stop valve C13, T type cock valve 9, exchange cock B7 in the branch heating gas circuit are connected, at this time the orifice plate box A2 controls large flow, the regulating valve 10 controls small flow to realize stable adjustment of the combustion chamber.

[0037] see Figure 3 , circuit B works, circuit A standby state process operation flow:

[0038] When the T-shaped cock valve 9 is adjusted to 90°, the regulating cock A1, the orifice box A2, the regulating valve 10 are in standby state, the regulating cock B5, the orifice box B6, the exchange cock A3, the exchange cock B7, the regulating valve 10 are in working state, the regulating cock A1, the stop valve A11, the stop valve D14 are closed, the regulating cock B5, the stop valve B12, the stop valve C13 are opened, when the exchange cock A3 is opened by the exchange machine, the exchange cock B is automatically closed, the regulating cock B5, the orifice box B6, the T-shaped cock valve 9, the exchange cock A3 in the main heating gas line are connected, the regulating cock B5, the stop valve B12, the regulating valve 10, the stop valve C13, the T-shaped cock valve 9, the exchange cock A3 in the branch heating gas line are connected, after a period of time, the exchange machine is reversed, the exchange cock A3 is closed, the exchange cock B7 is opened, the regulating cock B5, the orifice box B6, the exchange cock B7 in the main heating gas line are connected, the regulating cock B5, the stop valve B12, the regulating valve 10, the stop valve C13, the T-shaped cock valve 9, the exchange cock B7 in the branch heating gas line are connected, the orifice box B6 controls large flow, the regulating valve 10 can still realize stable adjustment of the combustion chamber by controlling small flow.

[0039] 2) see Figure 4 , the process operation flow under the loop A purge state:

[0040] When the orifice box A2, the regulating valve 10 need to be purged by steam, the T-shaped cock valve 9 is adjusted to 0°, the regulating cock B5 is opened, the stop valve B12 is closed, the heating gas enters the combustion chamber through the regulating cock B5, the orifice box B6, the exchange cock B7, when the exchange cock A4 is closed by the hydraulic exchange machine, the regulating cock A1, the stop valve A11, the stop valve B13, the stop valve D14 are opened, the purge steam passes through the stop valve D14, the regulating valve 10, the stop valve A11, the regulating cock A1 to purge the regulating valve 10, the stop valve D14, the stop valve B13, the orifice box A2, the regulating cock A1 to purge the orifice box, after the purge is completed, the regulating cock B5 is closed, the T-shaped cock valve 9 is adjusted to 90°, the orifice box A2, the regulating valve 10 return to normal work.

[0041] 3) see Figure 5 , the process operation flow under the loop B maintenance state:

[0042] When the orifice box B6 and the regulating valve 10 need to be purged, the T-shaped cock valve 9 is adjusted to 180°, the stop valve A11 is closed, the regulating cock A1 is opened, the heating gas enters the combustion chamber through the regulating cock A1, the orifice box A2 and the exchange cock A4; when the hydraulic exchange machine drives the exchange cock B7 to close, the regulating cock B5, the stop valve B12, the stop valve C13 and the stop valve D14 are opened, the purge steam passes through the stop valve D14, the regulating valve 10, the stop valve B12 and the regulating cock B5, the regulating valve 10, the stop valve D14, the stop valve B13, the T-shaped cock valve 9, the orifice box B6 and the regulating cock B5 are purged, and the purging is completed. After that, the regulating cock A1 is closed, the T-shaped cock valve 9 is adjusted to 90°, and the orifice box B6 and the regulating valve 10 return to work.

[0043] See Figure 6 , the regulating valve maintenance process flow:

[0044] When the regulating valve 10 needs to be replaced or disassembled and maintained, the T-shaped cock valve 9 is adjusted to 0° or 180°, the regulating cock A1 and the regulating cock B5 are opened, and the stop valve A11, the stop valve B12, the stop valve C13 and the stop valve D14 are closed; at this time, the regulating cock A1, the orifice box A2 and the exchange cock A3 are alternately connected with the regulating cock B5, the orifice box B6 and the exchange cock B7 through the action of the hydraulic exchange machine, and the normal heating of the coke oven is not affected.

[0045] 4) The orifice box A2 can also be replaced by a regulating valve, and the regulating valve is a pneumatic regulating butterfly valve with a flow regulating range of 150-500 m 3 / h; at this time, the pneumatic regulating butterfly valve, the regulating cock A1, the exchange cock A3, the exchange cock B6 and the regulating valve 10 form a normal working circuit, the pneumatic regulating butterfly valve replaces the orifice box A2 to regulate the large flow, the regulating valve 10 is used for accurate regulation of the small flow, and the regulating cock B5 and the orifice box B6 are used as a standby circuit and can be used when the pneumatic regulating butterfly valve and the working circuit thereof fail. The operation process is shown in Figure 2 . This method reduces the labor intensity of manual replacement of the orifice box A2, can realize accurate regulation of the combustion chamber temperature and sudden large disturbance, and the standby orifice box A2 can still play a regulating role when the regulating valve 10 fails, but the investment cost is increased. Even so, the investment cost is still lower than that of the prior art.

[0046] The utility model branch one is equipped with T type plug valve, the first passage connection of pipeline connection between hole plate box A, exchange plug A and T type plug valve, the second passage connection of pipeline connection between hole plate box B, exchange plug B and T type plug valve, the third passage of T type plug valve is connected with branch pipe three, this structure has realized the intercommunication of two heating gas main pipes, can adopt one regulating valve to complete the flow regulation of two gas heating pipelines of same combustion chamber, realizes on -line maintenance and manual adjustment through changing the opening position of T type plug valve, is equipped with stop valve D between regulating valve and T type plug valve, regulating valve adopts three -way connector and is connected with stop valve A, stop valve B respectively, has guaranteed that regulating valve can dismantle at any time when the failure occurs, does not influence normal production, one end of stop valve A, stop valve B is connected with regulating plug heating gas pipeline, is connected with regulating valve through three -way connector on the other, can realize the mutual switching of heating gas pipeline working circuit and standby circuit at any time, is equipped with stop valve C between regulating valve and stop valve D, can carry out on -line steam purging to heating gas pipeline through stop valve C, prevents the tar, naphthalene and blocks heating gas pipeline and valve, adopts one small bore regulating valve and connects between heating gas pipeline one, heating gas pipeline two, does not influence the regulating function at the same time, reduces regulating valve size, has reduced the number of regulating valve greatly, has reduced the investment cost.

Claims

1. An economical single-hole burner temperature regulating device, characterized in that, The device comprises heating gas unit one, heating gas unit two, adjusting gas pipe, adjusting unit, the input end of each heating gas unit one and the input end of heating gas unit two are connected with heating gas main pipe respectively, the output end of each heating gas unit one and the output end of heating gas unit two are connected with corresponding combustion chamber, one end of adjusting unit is connected with corresponding heating gas unit one, the other end of adjusting unit is connected with corresponding heating gas unit two.

2. An economy single-burner combustion chamber thermostat according to claim 1, wherein, The adjusting unit comprises branch pipe one, branch pipe two and branch pipe three, one end of branch pipe one and branch pipe two is connected with corresponding heating gas unit one respectively, the other end of branch pipe one and branch pipe two is connected with corresponding heating gas unit two respectively, one end of branch pipe three is connected with branch pipe one, the other end of branch pipe three is connected with branch pipe two.

3. An economy single-burner combustion chamber thermostat according to claim 2, wherein, The heating gas unit one is provided with adjusting cock A, orifice plate box A and exchange cock A from bottom to top in sequence, the heating gas unit two is provided with adjusting cock B, orifice plate box B and exchange cock B from bottom to top in sequence, T type cock valve is arranged on the branch pipe one, the pipeline connection between orifice plate box A and exchange cock A is connected with the first passage of T type cock valve, the pipeline connection between orifice plate box B and exchange cock B is connected with the second passage of T type cock valve, the third passage of T type cock valve is connected with one end of branch pipe three.

4. An economy single-burner combustion chamber temperature regulating device according to claim 2, wherein The branch pipe three is provided with adjusting valve and stop valve D from bottom to top in sequence, the pipeline connection between adjusting valve and stop valve D is connected with one end of stop valve C, the other end of stop valve C is communicated with steam purging pipeline.

5. An economy single-burner combustion chamber thermostat according to claim 2, wherein, The branch pipe two is provided with stop valve A, stop valve B and three-way joint, the other two ends of three-way joint are connected with stop valve A and stop valve B respectively, the remaining end of three-way joint is connected with the other end of branch pipe three.

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