A lye tank heating device

Abstract

The present invention relates to the technical field of coking alkali liquid tank, and in particular to an alkali liquid tank heating device. It includes a heater, a connecting pipe, a support, a regulating valve, a temperature sensor and a controller; the support is fixed in the alkali liquid tank, the connecting pipe is fixed on the outer wall of the alkali liquid tank, one end of the heater is detachably fixed on the support, and the other end is detachably connected to the connecting pipe; the other end of the heater is connected to the regulating valve, and the regulating valve is connected to the ammonia evaporation wastewater pipeline; the regulating valve, the temperature sensor and the controller are electrically connected and interlocked, and the controller adjusts the opening of the regulating valve or cuts off the regulating valve according to the temperature measured by the temperature sensor. The present invention is convenient and quick to install and disassemble, and is easy to repair, low in cost, and can control the flow of the heating medium to adjust the alkali liquid temperature to avoid alkali embrittlement in the alkali liquid tank.

Description

Technical Field

[0001] The invention relates to the technical field of coking alkali liquid tanks, and in particular to an alkali liquid tank heating device. Background Art

[0002] Lye is a highly corrosive alkaline chemical, which means it can dissolve sticky substances such as fats and has a high chemical reactivity to other substances. Lye is an alkaline solution containing a large amount of hydroxide. Lye is a commonly used medium in coking plants, and the lye tanks that store lye are usually made of carbon steel.

[0003] At present, in order to prevent the alkali solution from crystallizing, the alkali solution tank is usually heated by steam, which has the following defects: 1. Since steam heating cannot control the temperature of the alkali solution, the alkali solution tank often suffers from alkali embrittlement, causing the alkali solution tank to fail. 2. Conventional heaters use coil heaters, which are difficult to repair. 3. The heater uses steam heating, which is costly. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a lye tank heating device, which is quick and easy to install and disassemble, easy to repair, low in cost, and can control the flow of heating medium to adjust the lye temperature, thereby preventing the lye tank from alkali embrittlement.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A lye tank heating device comprises a heater, a connecting pipe, a support, a regulating valve, a temperature sensor and a controller; the support is fixedly connected in the lye tank, the connecting pipe is fixedly connected to the outer wall of the lye tank, one end of the heater is detachably fixed to the support, and the other end is detachably connected to the connecting pipe; the other end of the heater is connected to the regulating valve, and the regulating valve is connected to an ammonia wastewater pipeline; the regulating valve, the temperature sensor and the controller are electrically connected and interlocked, and the controller adjusts the opening degree of the regulating valve or cuts off the regulating valve according to the temperature measured by the temperature sensor.

[0007] The heater is a detachable sleeve heater.

[0008] The heater and the support are connected by using U-shaped bolts.

[0009] The heater is made of S31603 or Ni material.

[0010] The connecting pipe is made of S31603 or Ni material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) The present invention is provided with a regulating valve, a temperature sensor and a controller, which are electrically connected to the controller and interlocked. The controller adjusts the opening degree of the regulating valve or cuts off the regulating valve according to the temperature signal measured by the temperature sensor. The present invention can control the flow rate of the heating medium to adjust the temperature of the alkali solution and avoid alkali embrittlement in the alkali solution tank.

[0013] 2) The present invention is connected to the ammonia evaporation wastewater pipeline and adopts the ammonia evaporation wastewater as the heating medium, which has low cost, high energy utilization rate, energy saving and emission reduction.

[0014] 3) One end of the heater of the present invention is detachably fixed to the support, and the other end is detachably connected to the connecting pipe; the heater is quick and easy to install and disassemble, and is also convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the heater of the present invention;

[0017] Figure 3 It is a schematic diagram of the support structure of the present invention.

[0018] In the figure: 1-heater 2-pipe connection 3-support 4-regulating valve 5-alkali solution tank 6-outer wall of alkali solution tank 7-bottom of alkali solution tank 8-pipe connection flange 9-heater flange 10-U-bolt 11-evaporation ammonia wastewater pipeline DETAILED DESCRIPTION

[0019] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0020] Example:

[0021] like Figure 1-3 As shown, a lye tank heating device includes a heater 1, a connecting pipe 2, a support 3, a regulating valve 4, a temperature sensor and a controller.

[0022] The heater 1 is made of S31603 or Ni material, and the heater 1 is a detachable sleeve heater.

[0023] The support 3 is fixedly connected in the alkali solution tank 5, and the support 3 is located above the alkali solution tank bottom 7. The pipe 2 is fixedly connected to the outer wall 6 of the alkali solution tank, and the pipe 2 is made of S31603 or Ni material.

[0024] One end of the heater 1 is fixed to the support 3 by a U-bolt 10. A heater flange 9 is provided at the other end of the heater 1, and a pipe flange 8 is provided at the end of the pipe 2, and the pipe flange 8 is connected to the heater flange 9 by bolts. The heater 1 is connected to the alkali solution tank 5 in a detachable manner, which is convenient and quick to install and disassemble, and easy to repair.

[0025] The other end of the heater 1 is connected to the regulating valve 4, and the regulating valve 4 is connected to the ammonia evaporation wastewater pipeline 11. The present invention uses ammonia evaporation wastewater as a heating medium, which has low cost, high energy utilization rate, and energy saving and emission reduction.

[0026] The regulating valve 4 and the temperature sensor are electrically connected to the controller and interlocked. The controller adjusts the opening degree of the regulating valve or cuts off the regulating valve according to the temperature measured by the temperature sensor.

[0027] After the alkali solution tank 5 is filled with alkali solution, the heater 1 is fed with ammonia evaporated wastewater. The controller adjusts the opening degree of the regulating valve 4 or cuts off the regulating valve 4 according to the temperature measured by the temperature sensor, thereby controlling the flow rate of the ammonia evaporated wastewater and controlling the alkali solution temperature not to exceed the temperature at which the alkali solution becomes alkali brittle, thereby ensuring stable operation of the equipment.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lye tank heating device, characterized in that: It includes a heater, a connecting pipe, a support, a regulating valve, a temperature sensor and a controller; the support is fixedly connected in an alkali solution tank, the connecting pipe is fixedly connected to the outer wall of the alkali solution tank, one end of the heater is detachably fixed on the support, and the other end is detachably connected to the connecting pipe; the other end of the heater is connected to the regulating valve, and the regulating valve is connected to an ammonia wastewater pipeline; the regulating valve, the temperature sensor and the controller are electrically connected and interlocked, and the controller adjusts the opening degree of the regulating valve or cuts off the regulating valve according to the temperature measured by the temperature sensor.

2. The alkali solution tank heating device according to claim 1, characterized in that: The heater is a detachable sleeve heater.

3. The alkali solution tank heating device according to claim 1, characterized in that: The heater and the support are connected by using U-shaped bolts.

4. The alkali solution tank heating device according to claim 1, characterized in that: The heater is made of S31603 or Ni material.

5. The alkali solution tank heating device according to claim 1, characterized in that: The connecting pipe is made of S31603 or Ni material.

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