Demisting device and control system for air temperature gasification equipment

Abstract

The present invention discloses a demisting device for air-temperature gasification equipment and its control system. The cylinder of the device has a cavity inside, an air inlet at the side end of the cavity, and an air outlet at the top of the cavity. A mesh cover, an electric heating tube, a baffle group and a fan are sequentially arranged inside the cavity from the air inlet to the air outlet. The mist passes through the mesh cover and is preheated by the electric heating tube. It is then guided by the baffle group. A part of the mist forms droplets and settles to the bottom of the cylinder to be discharged. The other part of the hot mist is led out of the cylinder into the air environment through the fan. The whole process realizes automatic control of the electric heating tube and the fan through the main circuit and the manual / automatic / stop control circuit. In the above manner, the demisting device for air-temperature gasification equipment of the present invention and its control system can remove the fog on site, which is beneficial to the convection heat exchange between the air-temperature gasifier and the air on site, and is beneficial to the warming of the air environment on site, ensuring the safety of on-site operation, and can realize automatic control of the electric heating tube and the fan, with better demisting effect.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separation, and in particular to a demisting device for air-temperature gasification equipment and a control system thereof. Background Art

[0002] Coal-to-gas gasification stations or large peak-shaving stations generally use air-temperature gasifiers to absorb heat from the air in the form of air convection during the gasification process of liquefied natural gas. However, this process is greatly affected by the outside world and can cause a large amount of fog to be generated on site, seriously affecting the operation of on-site personnel and creating serious safety hazards.

[0003] At present, de-icing devices are generally used to remove ice from the fins of the liquid inlet part of the vaporizer, but the effect on the generated mist is not very good. Another method is to install a fan on the top of the vaporizer to speed up the convection of the gas. The installation of the fan has some effect, but the installation height is too high, and it is inconvenient to lay cables.

[0004] When the air-temperature vaporizer has sufficient heat exchange, it is inevitable that fog will be generated during convection, even if a fan is installed. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a defogger device for air-temperature gasification equipment and a control system thereof, which can remove fog on site, is beneficial to the convection heat exchange between the air-temperature gasifier and the air on site, is beneficial to the warming of the air environment on site, ensures the safety of on-site operation, can realize automatic control of the electric heating pipe and the fan, and has a better defogger effect.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a demisting device for air temperature gasification equipment, comprising: a cylinder having a cavity inside the cylinder,

[0007] The side end of the cavity is provided with an air inlet for introducing mist, the top of the cavity is provided with an air outlet for discharging hot mist, and the inside of the cavity is provided with a mesh cover, an electric heating tube, a baffle group and a fan in sequence from the air inlet to the air outlet.

[0008] After the mist passes through the mesh cover, it is preheated by an electric heating tube and then guided through a baffle group. A part of it forms droplets and settles to the bottom of the cylinder for discharge, while the other part of the hot mist is led out of the cylinder into the air environment through a fan.

[0009] In a preferred embodiment of the present invention, the baffle group includes a first baffle group arranged transversely and a second baffle group arranged longitudinally, the first baffle group includes a plurality of first baffles arranged in parallel at equal intervals, and the second baffle group includes a plurality of second baffles arranged in parallel at equal intervals.

[0010] In a preferred embodiment of the present invention, a first baffle channel is formed between adjacent first baffles, and after being heated, the mist flows from left to right along the path of the first baffle channel through the first baffle;

[0011] A second baffle channel is formed between adjacent second baffles, and the mist passing through the first baffle continues to pass through the second baffle from bottom to top along the path of the second baffle channel.

[0012] In a preferred embodiment of the present invention, the electric heating tube is an explosion-proof electric heating tube, which is arranged longitudinally along the cavity and arranged at the inlet side of the first baffle group.

[0013] In a preferred embodiment of the present invention, the fan is an explosion-proof fan, which is arranged at the top of the cavity and located at the outlet of the second baffle group.

[0014] In a preferred embodiment of the present invention, the mist is introduced through the air inlet at the side end of the cavity, preheated by the electric heating tube and then passes through the first baffle group. Under the guiding action of the first baffle group, the mist enters the bottom space on the right side of the cavity, and then the hot mist flows upward through the second baffle group, thus forming a circulation, and finally the hot mist passes through the fan and is blown into the air from the air outlet.

[0015] In a preferred embodiment of the present invention, a drain port is provided at the bottom of the cavity, and the mist inside the cavity forms droplets after passing through the baffle group and settles into the cavity and is discharged through the drain port.

[0016] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a control system for a demisting device of an air temperature gasification equipment, comprising a main circuit and a manual / automatic / stop control circuit connected to the main circuit,

[0017] The main circuit includes three live wires L1, L2, and L3. The three live wires are connected in parallel with explosion-proof electric heating tubes and explosion-proof fans. The explosion-proof electric heating tubes are connected in series with the main circuit contactor KM1, and the explosion-proof fans are connected in series with the main circuit contactor KM2.

[0018] The main circuit provides power to the explosion-proof electric heating tube and explosion-proof fan through a three-phase power supply. The main circuit is also equipped with an air switch QF1 connected to three live wires for connecting and disconnecting the main power supply.

[0019] In a preferred embodiment of the present invention, the manual / automatic / stop control circuit includes a power switch QK1, a temperature controller WK, a manual / automatic / stop switch QK2, an AC contactor KM1', an AC contactor KM2', a power indicator light HL1, a heating indicator light HL2 and a fan indicator light HL3.

[0020] The power switch QK1 is used to connect and disconnect the control circuit power supply. The temperature controller WK, AC contactor KM1' and AC contactor KM2' are connected in parallel. The temperature controller WK is also connected to the temperature probe BT.

[0021] Contactor KM1' and contactor KM2' respectively connect and disconnect the power supply of the explosion-proof electric heating tube and the explosion-proof fan, and connect the power supply of the corresponding indicator light. The circuit of contactor KM1' is connected with time relay T1.

[0022] In a preferred embodiment of the present invention, the electrical control process is:

[0023] The manual / automatic / stop control circuit includes a power switch QK1, a temperature controller WK, a manual / automatic / stop switch QK2, an AC contactor KM1', an AC contactor KM2', a power indicator light HL1, a heating indicator light HL2 and a fan indicator light HL3.

[0024] The power switch QK1 is used to connect and disconnect the control circuit power supply. The temperature controller WK, AC contactor KM1' and AC contactor KM2' are connected in parallel. The temperature controller WK is also connected to the temperature probe BT.

[0025] Contactor KM1' and contactor KM2' respectively connect and disconnect the power supply of the explosion-proof electric heating tube and the explosion-proof fan, and connect the power supply of the corresponding indicator light. The circuit of contactor KM1' is connected with time relay T1.

[0026] The beneficial effects of the present invention are as follows: the demisting device of the air-temperature gasification equipment and the control system thereof can remove the on-site fog, which is beneficial to the on-site air-temperature gasifier and air convection heat exchange, which is beneficial to the on-site air environment warming, ensuring the safety of on-site operation, and can realize automatic control of the electric heating tube and the fan, and has a better demisting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0028] Figure 1 It is a structural schematic diagram of a preferred embodiment of the demisting device of the air temperature gasification equipment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a preferred embodiment of a panel of a demisting device for air temperature gasification equipment of the present invention;

[0030] Figure 3 This is a control principle diagram of the demisting device of the air temperature gasification equipment of the present invention;

[0031] The components in the accompanying drawings are marked as follows: 100, cylinder, 110, cavity, 130, air outlet, 140, sewage outlet, 200, mesh cover, 300, electric heating tube, 400, baffle group, 410, first baffle group, 411, first baffle, 412, first baffle channel, 420, second baffle group, 421, second baffle, 422, second baffle channel, 500, fan. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 3 , the embodiment of the present invention includes:

[0034] Embodiment 1:

[0035] A demisting device for air temperature vaporization equipment includes: a cylinder 100, a cavity 110 is provided inside the cylinder 100, a side end of the cavity 110 has an air inlet for introducing mist, and a top of the cavity 110 has an air outlet 130 for discharging hot mist.

[0036] The cavity 110 is provided with a mesh cover 200, an electric heating tube 300, a baffle group 400 and a fan 500 in sequence from the air inlet to the air outlet 130. The mist generated by the air temperature vaporizer is introduced into the cavity 110 through the air inlet.

[0037] After passing through the mesh cover 200, the mist is preheated by the electric heating tube 300 and then guided by the baffle group 400. A part of the mist forms droplets and settles to the bottom of the cylinder 100 and is exhausted, while the other part of the hot mist is led out of the cylinder into the air environment through the fan 500.

[0038] The electric heating tube 300 is an explosion-proof electric heating tube, which is longitudinally arranged along the cavity 110 and arranged at the inlet side of the first baffle group 410, and can preheat the mist inside the cavity 110 to promote the dissipation of the mist.

[0039] The baffle group 400 includes a first baffle group 410 arranged transversely and a second baffle group 420 arranged longitudinally:

[0040] The first baffle group 410 includes a plurality of first baffles 411 arranged in parallel at equal intervals, and a first baffle channel 412 is formed between adjacent first baffles 411. After being heated, the mist passes through the first baffles 411 from left to right along the path of the first baffle channel 412.

[0041] The second baffle group 420 includes a plurality of second baffles 421 arranged in parallel at equal intervals, and a second baffle channel 422 is formed between adjacent second baffles 421. After passing through the first baffle 411, the mist continues to pass through the second baffle 421 from bottom to top along the path of the second baffle channel 422.

[0042] The fan 500 is an explosion-proof fan, which is arranged at the top of the cavity 110 and located at the outlet of the second baffle group 420. The hot mist inside the cavity 110 is led out of the cylinder 100 into the air environment through the explosion-proof fan.

[0043] A drain port 140 is provided at the bottom of the cavity 110 . After passing through the baffle assembly 400 , the mist inside the cavity 110 partially forms droplets and settles into the cavity 110 , and is discharged through the drain port 140 .

[0044] The working process of the demisting device of the above-mentioned air temperature gasification equipment is:

[0045] The mist is introduced into the cavity 110 through the air inlet at the side end of the cylinder 100, and the mist is preheated by the electric heating tube 300.

[0046] After being heated, the hot mist passes through the first baffle channel 412 of the first baffle group 410, and enters the bottom space on the right side of the cavity 110 under the guiding effect of the first baffle group 410. Then, the hot mist flows upward and continues to pass through the second baffle channel 422 of the second baffle group 420, thus forming a circulation of the hot mist.

[0047] Then, a part of the hot mist forms droplets and settles to the bottom of the cylinder 100 and is discharged in time, and the other part of the hot mist passes through the fan 500 and is led out of the cylinder 100 into the air environment through the air outlet 130.

[0048] Embodiment 2:

[0049] A control system for a demisting device of air temperature gasification equipment comprises: a main circuit and a manual / automatic / stop control circuit connected with the main circuit.

[0050] The main circuit includes three live wires L1, L2, and L3. Explosion-proof electric heating tubes and explosion-proof fans are connected in parallel on the three live wires. The explosion-proof electric heating tubes are connected in series with a main circuit contactor KM1, and the explosion-proof fan is connected in series with a main circuit contactor KM2.

[0051] The main circuit provides power to the explosion-proof electric heating tube and explosion-proof fan through a three-phase power supply. The main circuit is also provided with an air switch QF1 connected to three live wires. The air switch QF1 is used to connect and disconnect the main power supply.

[0052] The manual / automatic / stop control circuit includes a power switch QK1, a temperature controller WK, a manual / automatic / stop switching switch QK2, an AC contactor KM1', an AC contactor KM2', a power indicator light HL1, a heating indicator light HL2 and a fan indicator light HL3.

[0053] The power switch QK1 is used to connect and disconnect the control circuit power supply, and the manual / automatic / stop switch QK2 is turned to the corresponding position to adapt to different operating environments on site.

[0054] Thermostat WK, AC contactor KM1' and AC contactor KM2' are arranged in parallel. Thermostat WK is connected to temperature probe BT for detecting and controlling the air flow temperature in the defogger. The temperature value is set by thermostat WK so that the air flow temperature in the defogger is maintained within a constant range.

[0055] AC contactor KM1' and AC contactor KM2' are used to connect and disconnect the power supply of explosion-proof electric heating tube and explosion-proof fan respectively, and connect the power supply of corresponding indicator light:

[0056] The AC contactor KM1' is connected to the line with relay T1, which is a power-off delay relay. When QK1 is turned on, relay T1 is energized and turned on. When the KM1' AC contactor is disconnected, the explosion-proof electric heating tube stops heating, but the heating tube is still in a high-temperature state. At this time, relay T1 delays for 1 minute, and the normally closed contact of relay T1 is disconnected, cutting off the driving power of KM2' AC contactor. KM2' is disconnected, that is, the explosion-proof fan stops running. By delaying for 1 minute, it is ensured that the explosion-proof heating tube drops to normal temperature.

[0057] The specific control process is:

[0058] First, supply the three-phase power supply, turn the power switch QK1 to "on", and the power indicator HL1 will light up:

[0059] a. Turn the manual / automatic / stop switch QK2 to "manual", the AC contactors KM1' and KM2' are energized, the explosion-proof electric heating tube and the explosion-proof fan are powered on, the explosion-proof electric heating tube and the explosion-proof fan start to run, and the heating indicator light HL2 and the fan indicator light HL3 light up;

[0060] Turn the manual / auto / stop switch QK2 to "stop".

[0061] The AC contactor KM1' is disconnected, the power supply of the explosion-proof electric heating tube is disconnected, the explosion-proof electric heating tube stops running, and the heating indicator light HL2 goes out. At the same time, after a delay of 1 minute under the control of the time relay T1, the contactor KM2' is disconnected, the power supply of the explosion-proof fan is disconnected, the explosion-proof fan stops running, and the fan indicator light HL3 goes out;

[0062] b. Turn the manual / automatic / stop switch QK2 to "automatic", the AC contactors KM1' and KM2' are energized, the explosion-proof electric heating tube and the explosion-proof fan are powered on, the explosion-proof electric heating tube and the explosion-proof fan start to run, the heating indicator light HL2 and the fan indicator light HL3 light up,

[0063] If the air outlet temperature is higher than the set value, the AC contactor KM1' is disconnected, the explosion-proof electric heating tube stops running, and the heating indicator light HL2 goes out;

[0064] Turn the manual / auto / stop switch QK2 to "stop".

[0065] The AC contactor KM1' is disconnected, the power supply of the explosion-proof electric heating tube is disconnected, the explosion-proof electric heating tube stops running, the heating indicator light HL2 goes out, and at the same time, after a delay of 1 minute under the control of the time relay T1, the AC contactor KM2' is disconnected, the power supply of the explosion-proof fan is disconnected, the explosion-proof fan stops running, and the fan indicator light HL3 goes out.

[0066] The beneficial effects of the demisting device of air temperature gasification equipment and the control system thereof of the present invention are:

[0067] The mist eliminator is used to heat the mist by backflow, heating and circulation, and then the mist is blown into the air by the fan, and part of the moisture is discharged through the drain valve;

[0068] It can remove the fog on site, which is beneficial to the convection heat exchange between the air-temperature vaporizer and the air on site, which is beneficial to the warming of the air environment on site and ensures the safety of on-site operations;

[0069] It has wider applicability, can choose different electric heaters and fans, and is suitable for different types of gas stations;

[0070] Simple structure, small footprint, easy to be arranged on site near the gasifier;

[0071] It can realize automatic control of the electric heating tube and the fan, and has a better demisting effect.

[0072] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A demisting device for air temperature gasification equipment, characterized in that: include: The cylinder has a cavity inside. The side end of the cavity is provided with an air inlet for introducing mist, the top of the cavity is provided with an air outlet for discharging hot mist, and the inside of the cavity is provided with a mesh cover, an electric heating tube, a baffle group and a fan in sequence from the air inlet to the air outlet. The baffle plate group includes a first baffle plate group arranged transversely and a second baffle plate group arranged longitudinally, the first baffle plate group includes a plurality of first baffle plates arranged in parallel at equal intervals, and the second baffle plate group includes a plurality of second baffle plates arranged in parallel at equal intervals. A first baffle channel is formed between adjacent first baffles. After being heated, the mist passes through the first baffle from left to right along the path of the first baffle channel. A second baffle channel is formed between adjacent second baffles. After passing through the first baffle, the mist continues to pass through the second baffle from bottom to top along the path of the second baffle channel. After the mist passes through the mesh, it is preheated by an electric heating tube, and then guided by a baffle group. A part of it forms droplets and settles to the bottom of the cylinder for discharge, while the other part of the hot mist is led out of the cylinder into the air environment through the fan. The mist is introduced from the air inlet at the side end of the cavity, preheated by the electric heating tube, and then passes through the first baffle group. Under the guidance of the first baffle group, it enters the bottom space on the right side of the cavity, and then the hot mist flows upward through the second baffle group, thus forming a circulation. Finally, the hot mist passes through the fan and is blown into the air from the air outlet. A sewage outlet is provided at the bottom of the cavity. After passing through the baffle group, part of the mist inside the cavity forms droplets and settles inside the cavity and is discharged through the sewage outlet.

2. The demisting device for air temperature gasification equipment according to claim 1, characterized in that: The electric heating tube adopts an explosion-proof electric heating tube, which is arranged longitudinally along the cavity and arranged at the inlet side of the first baffle group.

3. The demisting device for air temperature gasification equipment according to claim 1, characterized in that: The fan adopts an explosion-proof fan, which is arranged at the top of the cavity and located at the outlet position of the second baffle group.

4. A control system for a demisting device of an air temperature gasification device, characterized in that: include: The demisting device for air temperature gasification equipment according to any one of claims 1 to 3, It also includes the main circuit and the manual / automatic / stop control circuit connected to the main circuit. The main circuit includes three live wires L1, L2, and L3. The three live wires are connected in parallel with explosion-proof electric heating tubes and explosion-proof fans. The explosion-proof electric heating tubes are connected in series with the main circuit contactor KM1, and the explosion-proof fans are connected in series with the main circuit contactor KM2. The main circuit provides power to the explosion-proof electric heating tube and explosion-proof fan through a three-phase power supply. The main circuit is also equipped with an air switch QF1 connected to three live wires for connecting and disconnecting the main power supply.

5. The control system of the demisting device of air temperature gasification equipment according to claim 4, characterized in that: The manual / automatic / stop control circuit includes a power switch QK1, a temperature controller WK, a manual / automatic / stop switch QK2, an AC contactor KM1', an AC contactor KM2', a power indicator light HL1, a heating indicator light HL2 and a fan indicator light HL3. The power switch QK1 is used to connect and disconnect the control circuit power supply. The temperature controller WK, AC contactor KM1' and AC contactor KM2' are connected in parallel. The temperature controller WK is also connected to the temperature probe BT. Contactor KM1' and contactor KM2' respectively connect and disconnect the power supply of the explosion-proof electric heating tube and the explosion-proof fan, and connect the power supply of the corresponding indicator light. The circuit of contactor KM1' is connected with time relay T1.

6. The control system of the demisting device of air temperature gasification equipment according to claim 5, characterized in that: The electrical control process is: First, supply the three-phase power supply, turn the power switch QK1 to "on", and the power indicator HL1 will light up: The manual / automatic / stop switch QK2 is turned to "manual", the AC contactors KM1' and KM2' are energized, the explosion-proof electric heating tube and the explosion-proof fan are powered on, the explosion-proof electric heating tube and the explosion-proof fan start to run, and the heating indicator light HL2 and the fan indicator light HL3 light up; Turn the manual / auto / stop switch QK2 to "stop". The AC contactor KM1' is disconnected, the power supply of the explosion-proof electric heating tube is disconnected, the explosion-proof electric heating tube stops running, and the heating indicator light HL2 goes out. At the same time, after a delay of 1 minute under the control of the time relay T1, the contactor KM2' is disconnected, the power supply of the explosion-proof fan is disconnected, the explosion-proof fan stops running, and the fan indicator light HL3 goes out; b. Turn the manual / automatic / stop switch QK2 to "automatic", the AC contactors KM1' and KM2' are energized, the explosion-proof electric heating tube and the explosion-proof fan are powered on, the explosion-proof electric heating tube and the explosion-proof fan start to run, the heating indicator HL2 and the fan indicator HL3 light up, If the air outlet temperature is higher than the set value, the AC contactor KM1' is disconnected, the explosion-proof electric heating tube stops running, and the heating indicator light HL2 goes out; Turn the manual / auto / stop switch QK2 to "stop". The AC contactor KM1' is disconnected, the power supply of the explosion-proof electric heating tube is disconnected, the explosion-proof electric heating tube stops running, the heating indicator light HL2 goes out, and at the same time, after a delay of 1 minute under the control of the time relay T1, the AC contactor KM2' is disconnected, the power supply of the explosion-proof fan is disconnected, the explosion-proof fan stops running, and the fan indicator light HL3 goes out.

Images