A device for dewaxing a gas

Abstract

The utility model provides a device is removed in gas among wax, including frame body, still including preprocessing module, main wax removal module, depth purification module and regeneration module, preprocessing module, main wax removal module, depth purification module and regeneration module all install on frame body, preprocessing module is used for to the wax containing gas carries out the preliminary filtration and temperature regulation, main wax removal module is connected with preprocessing module and is used for the gas to carry out main waxiness removal, depth purification module is connected with main wax removal module and is used for removing the trace waxiness of remaining in gas. The utility model can efficiently remove the waxiness in gas, and the regeneration module can restore the performance of wax removal component, prolongs the life.

Description

Technical Field

[0001] This utility model relates to the field of gas dewaxing technology, and in particular to a device for dewaxing in gas. Background Technology

[0002] In industrial production, if wax-containing gases are directly emitted or used, the wax will adhere to equipment parts, affecting equipment operating efficiency and potentially causing environmental pollution. Therefore, wax-containing gases need to be dewaxed.

[0003] In existing wax removal technologies for waxy gases, some devices only perform single-stage wax removal, which is insufficient to completely remove trace amounts of wax. This results in insufficient purity of the treated gas, failing to meet subsequent use or emission requirements and affecting production processes and environmental quality. Utility Model Content

[0004] To address the above problems, this utility model provides a device for dewaxing in gas.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A device for dewaxing gas includes a frame, a pretreatment module, a main dewaxing module, a deep purification module, and a regeneration module. The pretreatment module, main dewaxing module, deep purification module, and regeneration module are all mounted on the frame. The pretreatment module is used for preliminary filtration and temperature regulation of the wax-containing gas. The main dewaxing module is connected to the pretreatment module for removing the main wax from the gas. The deep purification module is connected to the main dewaxing module for removing residual trace amounts of wax from the gas. The regeneration module is connected to both the main dewaxing module and the deep purification module for regenerating the dewaxing components.

[0007] Preferably, the pretreatment module includes a primary filter, a heat exchanger, and a temperature sensor connected in sequence. The primary filter is equipped with a metal filter screen for removing solid particles from the gas.

[0008] Preferably, the main dewaxing module includes a housing, several parallel filter units disposed within the housing, a wax collection tank disposed at the bottom of the housing, and a pressure sensor located at the top of the housing. The filter units are used to trap wax particles in the gas.

[0009] Preferably, the filtration unit includes a support frame and a ceramic filter membrane fixed on the support frame, wherein the pore size of the ceramic filter membrane is 0.1-1μm.

[0010] Preferably, the deep purification module includes an adsorption tower filled with a mixed adsorbent of activated carbon and molecular sieve, wherein the mass ratio of activated carbon to molecular sieve is 3:1-5:1.

[0011] Preferably, the regeneration module includes a hot air generator, a steam generator, and a circulating fan. The hot air generator is used to generate hot air at 120-180°C, and the steam generator is used to generate saturated steam at a pressure of 0.3-0.6 MPa.

[0012] Preferably, the regeneration module is connected to the shell of the main dewaxing module and the adsorption tower of the deep purification module via pipelines, and is used to introduce hot air or saturated steam to regenerate the filter unit and adsorbent.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The device undergoes pretreatment, main dewaxing, and deep purification module-based staged treatment, which can efficiently remove wax from the gas, and the regeneration module can restore the performance of the dewaxing components and extend their service life.

[0015] 2. The modules work together in a coordinated manner, with a high degree of automation control, reducing manual intervention and avoiding secondary pollution, ensuring that the treated gas meets the standards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is the front view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] In the diagram: 1. Frame, 2. Pre-treatment module, 3. Main dewaxing module, 4. Deep purification module, and 5. Regeneration module. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Reference Figure 1-3 A device for dewaxing gas is disclosed, with a frame 1 as the basic supporting structure. All functional modules are installed on the frame 1 by bolts or clips, ensuring the overall structural stability of the device and facilitating installation, disassembly, and subsequent maintenance. The modules are connected sequentially via corrosion-resistant pipelines, with valves installed on the pipelines to control the gas flow direction and flow rate, ensuring orderly connection between modules and guaranteeing that the wax-containing gas completes dewaxing according to the preset process, while also meeting the operational requirements of the device under different working conditions.

[0022] Pretreatment module 2, as the pretreatment unit of the device, has the core function of creating conditions for the efficient operation of the subsequent main dewaxing module 3. It mainly consists of a primary filter, a heat exchanger and a temperature sensor connected in sequence. The components are connected in series through pipelines to form a complete pretreatment process.

[0023] Primary Filter: The internal metal filter screen features a multi-layered structure with precisely designed pore sizes. This effectively intercepts solid particles mixed in with wax-containing gases, preventing them from entering subsequent modules and causing blockages or wear, thus affecting the dewaxing effect and the lifespan of the device. A drain port is located at the bottom of the filter; periodically opening the drain port removes trapped solid particles, ensuring continuous and stable filter operation.

[0024] Heat exchanger: Connected to the outlet of the primary filter, it adopts a partitioned heat exchange structure, exchanging heat with the wax-containing gas through a hot or cold medium to regulate the temperature of the wax-containing gas. When the temperature of the wax-containing gas is too high or too low, the heat exchanger can adjust its temperature to a suitable range for the main dewaxing module 3, avoiding abnormal temperature from affecting the wax retention effect. The heat exchanger is equipped with an external insulation layer to reduce heat loss and improve heat exchange efficiency.

[0025] Temperature sensor: Installed on the heat exchanger outlet pipe and connected to the control system of the device, it monitors the temperature of the wax-containing gas after temperature regulation in real time and transmits the temperature data to the control system. When the gas temperature is detected to exceed the preset range, the control system can automatically adjust the supply of heat or cold medium to the heat exchanger to ensure that the gas temperature entering the main dewaxing module 3 meets the process requirements.

[0026] The main dewaxing module 3 is the core unit of the device for removing wax. It is responsible for removing the main wax from the gas. It mainly consists of a shell, a filter unit, a wax collection tank and a pressure sensor. All components work together to achieve wax interception and collection.

[0027] Housing: A sealed structure design ensures stable flow of wax-containing gas within the housing, preventing gas leakage. A gas inlet is located on one side of the housing, connecting to the outlet pipe of pretreatment module 2, and a gas outlet is located on the other side, connecting to the inlet pipe of deep purification module 4. Wax removal is completed as the gas flows from the inlet to the outlet within the housing. The housing is made of wear-resistant and corrosion-resistant materials, suitable for the working environment containing wax-containing gas.

[0028] Filter Units: Several filter units are installed in parallel within the housing. Each filter unit is connected to the housing via a fixed bracket, ensuring stability and unimpeded gas flow. The filter unit is a key component for trapping wax particles, and its structure directly affects dewaxing efficiency. Each filter unit consists of a support frame and a ceramic filter membrane. The support frame, made of rigid material, provides support for the ceramic filter membrane, preventing deformation or damage under gas pressure. The ceramic filter membrane, fixed to the support frame and manufactured using a special process, has uniform pore size, effectively trapping wax particles in the gas. It also possesses excellent high-temperature resistance and chemical corrosion resistance, making it suitable for long-term use.

[0029] Wax Collection Tank: Located at the bottom of the housing and connected to the interior, after the filter unit traps wax particles, some of the wax particles naturally settle into the wax collection tank under gravity. A wax discharge port is located at the bottom of the wax collection tank, and a valve is installed at the discharge port. Regularly opening the valve allows the collected wax to be discharged, preventing wax accumulation in the tank and affecting the operation of the device.

[0030] Pressure sensor: Installed on the top of the housing and connected to the control system, it monitors the gas pressure inside the housing in real time. As the filter unit operates for longer periods, the amount of wax particles trapped on its surface gradually increases, leading to an increase in gas pressure inside the housing. When the pressure sensor detects that the pressure has reached a preset value, it indicates that the filter unit has reached a certain level of contamination. The control system can then send a signal to prompt the operator to regenerate or replace the filter unit, ensuring the continuous and efficient operation of the main dewaxing module 3.

[0031] The deep purification module 4 is used to remove trace amounts of wax remaining in the gas after it has been treated by the main dewaxing module 3, further improving the gas purity so that it meets the requirements for subsequent use or emission. It is mainly composed of an adsorption tower.

[0032] The adsorption tower adopts a vertical structure design. A gas inlet is located at the bottom of the tower, connecting to the outlet pipe of the main dewaxing module 3, while a gas outlet is located at the top for discharging the purified gas. The interior of the adsorption tower is filled with a mixed adsorbent of activated carbon and molecular sieves, uniformly packed in a specific mass ratio to form an adsorption layer. Wax-containing gas enters from the bottom of the adsorption tower and flows upward through the adsorption layer. Trace amounts of wax in the gas are adsorbed and retained by the adsorbent, thus achieving deep purification of the gas. An inspection port is located on the side of the adsorption tower for easy replacement or regeneration of the adsorbent. A differential pressure gauge is also installed on the tower to monitor the gas pressure difference between the inlet and outlet. When the pressure difference is too large, it indicates that the adsorbent is nearing saturation and requires immediate intervention.

[0033] The function of the regeneration module is to regenerate the filter unit of the main dewaxing module 3 and the adsorbent of the deep purification module 4, restore their dewaxing or adsorption capacity, extend the service life of the components, and reduce the operating cost of the device. It mainly consists of a hot air generator, a steam generator and a circulating fan. Each component is connected to the main dewaxing module 3 and the deep purification module 4 through pipelines.

[0034] Hot air generator and steam generator: The hot air generator produces hot air within a specific temperature range, and the steam generator produces saturated steam within a specific pressure range. Both are connected to the control system, and the hot air temperature or saturated steam pressure can be adjusted according to regeneration requirements. Hot air and saturated steam are used as regeneration media, respectively, and are suitable for regeneration scenarios of different components. Alternatively, a single medium or a mixture of media can be selected for regeneration depending on the actual operating conditions.

[0035] Circulating fan: Connected to the piping of the hot air generator, steam generator, and various processing modules, it provides power for the flow of the regeneration medium. During the regeneration process, the circulating fan can drive hot air or saturated steam through the filter unit or adsorbent layer along a preset path, ensuring full contact between the regeneration medium and the components to be regenerated. Through heating and purging, the wax trapped on the surface of the filter unit or the wax adsorbed in the adsorbent is removed, and the wax-containing regeneration waste gas is transported to the designated treatment system to avoid secondary pollution.

[0036] Regeneration Piping and Control: The regeneration module is connected to the shell of the main dewaxing module 3 and the adsorption tower of the deep purification module 4 via dedicated pipelines. Valves and flow meters are installed on the pipelines to control the flow direction, flow rate, and regeneration time of the regeneration medium. The regeneration process is automatically controlled by the control system, which can preset regeneration programs and initiate regeneration operations based on the contamination level or operating time of each module. This achieves automated and precise control of the regeneration process, ensuring regeneration effectiveness while reducing manual intervention.

Claims

1. A device for dewaxing in gas, comprising a frame (1), characterized in that, It also includes a pretreatment module (2), a main dewaxing module (3), a deep purification module (4), and a regeneration module. The pretreatment module (2), the main dewaxing module (3), the deep purification module (4), and the regeneration module are all installed on the frame (1). The pretreatment module (2) is used to perform preliminary filtration and temperature adjustment on the wax-containing gas. The main dewaxing module (3) is connected to the pretreatment module (2) to remove the main wax from the gas. The deep purification module (4) is connected to the main dewaxing module (3) to remove the residual trace wax in the gas. The regeneration module is connected to the main dewaxing module (3) and the deep purification module (4) respectively to regenerate the dewaxing components.

2. The apparatus for dewaxing in gas according to claim 1, characterized in that, The pretreatment module (2) includes a primary filter, a heat exchanger and a temperature sensor connected in sequence. The primary filter is equipped with a metal filter screen for removing solid particles from the gas.

3. The apparatus for dewaxing in gas according to claim 1, characterized in that, The main dewaxing module (3) includes a housing, several parallel filter units arranged inside the housing, a wax collection tank at the bottom of the housing, and a pressure sensor at the top of the housing. The filter units are used to trap wax particles in the gas.

4. The apparatus for dewaxing in gas according to claim 3, characterized in that, The filtration unit includes a support frame and a ceramic filter membrane fixed on the support frame, wherein the pore size of the ceramic filter membrane is 0.1-1μm.

5. The apparatus for dewaxing in gas according to claim 1, characterized in that, The deep purification module (4) includes an adsorption tower, which is filled with a mixed adsorbent of activated carbon and molecular sieve, wherein the mass ratio of activated carbon to molecular sieve is 3:1-5:

1.

6. The apparatus for dewaxing in gas according to claim 1, characterized in that, The regeneration module includes a hot air generator, a steam generator, and a circulating fan. The hot air generator is used to generate hot air at 120-180°C, and the steam generator is used to generate saturated steam at a pressure of 0.3-0.6 MPa.

7. The apparatus for dewaxing in gas according to claim 5, characterized in that, The regeneration module is connected to the shell of the main dewaxing module (3) and the adsorption tower of the deep purification module (4) through pipelines, and is used to introduce hot air or saturated steam to regenerate the filter unit and adsorbent.

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