Air cooler operation efficiency improving system

Abstract

The utility model discloses an air cooler operation efficiency improving system which comprises an air cooler provided with a tube bundle, the tube bundle is provided with a feeding end used for feeding gas phase materials, a liquid outlet end used for discharging condensed liquid phase materials and a gas outlet end used for discharging non-condensable gas, and the gas outlet end is communicated with a return tank. The top of the return tank is communicated with a tail gas discharge pipe; and a pressure release valve is arranged on the tail gas discharge pipe. According to the utility model, non-condensable gas in the air cooler can enter the return tank through the gas outlet end, and is discharged through pressure relief of the return tank; after the non-condensable gas is discharged from the air cooler, the heat exchange area is increased, the temperature of lower liquid is increased more easily, and therefore the operation efficiency of the air cooler is improved. And the air cooler and the return tank are subjected to pressure relief and flow division, so that the phenomenon of gas-liquid entrainment in the tail gas discharge pipe can be avoided, and the handling capacity and corresponding energy consumption of back-end procedures are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air coolers, and in particular relates to a system for improving the operating efficiency of air coolers. Background Art

[0002] At present, in order to improve the utilization efficiency of air coolers and reduce energy consumption, the heat exchange area of ​​the heat exchanger at the top of the quench tower is often expanded so that the high-temperature gas phase from the top of the quench tower can be cooled by heat exchange with the mixed gas once, heat exchanged with hydrogen twice, and heat exchanged with silicon tetrachloride three times, and then the cooled gas is passed into the air cooler to reduce the load and power consumption of the air cooler, thereby extending the service life of the air cooler and reducing the cost of the steam heater. However, non-condensable gas is easy to accumulate at the top of the tube bundle in the air cooler, which leads to a decrease in the cooling supply rate and difficulty in increasing the lower liquid temperature, thereby reducing the operating efficiency of the air cooler. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides an air cooler operation efficiency improvement system, which can improve the operation efficiency of the air cooler.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A system for improving the operating efficiency of an air cooler comprises an air cooler provided with a tube bundle, the tube bundle being provided with a feed end for supplying gaseous materials, a liquid outlet end for discharging condensed liquid materials and a gas outlet end for discharging non-condensable gas, the gas outlet end being connected to a reflux tank, the top of the reflux tank being connected to an exhaust gas discharge pipe, and the exhaust gas discharge pipe being provided with a pressure relief valve.

[0006] The beneficial effects of adopting the above technical scheme are as follows: the non-condensable gas inside the air cooler can enter the reflux tank through the gas outlet end, and be discharged through the reflux tank after pressure relief; wherein, after the non-condensable gas is discharged from the air cooler, the heat exchange area is increased, and it is easier to increase the lower liquid temperature, which is beneficial to improving the operating efficiency of the air cooler; and the pressure relief and diversion of the air cooler and the reflux tank can avoid the phenomenon of gas-liquid entrainment in the exhaust gas discharge pipe, so as to reduce the processing volume and corresponding energy consumption of the back-end process.

[0007] In one embodiment, a first valve is provided between the reflux tank and the gas outlet.

[0008] The beneficial effect of adopting the above technical solution is: the first valve is provided to conveniently control the gas flow between the gas outlet and the reflux tank.

[0009] In one embodiment, one end of the first valve away from the reflux tank is connected to a plurality of gas outlet ends.

[0010] The beneficial effect of adopting the above technical solution is that the end of the first valve away from the reflux tank is connected to several air outlet ends, that is, the first valve can be connected to multiple air coolers, that is, multiple air coolers can achieve pressure relief through the reflux tank.

[0011] In one embodiment, a second valve is provided between any gas outlet and the first valve.

[0012] The beneficial effect of adopting the above technical solution is: a second valve is provided to individually control the gas flow between the gas outlet end of any air cooler and the reflux tank.

[0013] In one embodiment, the air cooler includes a variable frequency fan for cooling the tube bundle, a temperature sensor is provided at the liquid outlet, and the variable frequency fan and the temperature sensor are both electrically connected to a controller.

[0014] The beneficial effects of adopting the above technical solution are: the variable frequency fan can cool the tube bundle to adjust the lower liquid temperature at the liquid outlet end, and the temperature sensor can detect the lower liquid temperature at the liquid outlet end, thereby facilitating and effectively controlling the lower liquid temperature to further improve the operating efficiency of the air cooler.

[0015] In one embodiment, a temperature indicator is provided at the liquid outlet.

[0016] The beneficial effect of adopting the above technical solution is that the temperature indicator can display the lower liquid temperature at the liquid end, thereby facilitating employees to determine the lower liquid temperature on site.

[0017] In one embodiment, a third valve is provided at the liquid outlet.

[0018] The beneficial effect of adopting the above technical solution is: the third valve is provided to conveniently control the flow of liquid phase material at the liquid outlet.

[0019] In one embodiment, a pressure indicator is provided at the feed end.

[0020] The beneficial effect of adopting the above technical solution is that the pressure indicator can display the pressure at the feeding end, thereby facilitating employees to determine the pressure at the feeding end on site.

[0021] In one embodiment, a fourth valve is provided at the feeding end.

[0022] The beneficial effect of adopting the above technical solution is: the fourth valve is provided to conveniently control the flow of gas-phase material at the feeding end.

[0023] The beneficial effects of the utility model are:

[0024] The non-condensable gas inside the air cooler can enter the reflux tank through the gas outlet and be discharged through the reflux tank after pressure relief. After the non-condensable gas is discharged from the air cooler, the heat exchange area increases and it is easier to increase the lower liquid temperature, which is beneficial to improving the operating efficiency of the air cooler. The pressure relief and diversion of the air cooler and the reflux tank can avoid the phenomenon of gas-liquid entrainment in the exhaust gas discharge pipe, so as to reduce the processing volume and corresponding energy consumption of the back-end process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0026] in:

[0027] Figure 1 A schematic structural diagram of an embodiment of the utility model is shown;

[0028] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0029] Reference numerals:

[0030] 1-tube bundle, 2-frequency conversion fan, 3-second valve, 4-first valve, 5-exhaust discharge pipe, 6-pressure relief valve, 7-reflux tank, 8-pressure indicator, 9-temperature sensor, 10-temperature indicator, 11-fourth valve, 12-third valve. DETAILED DESCRIPTION

[0031] The utility model will be further described below in conjunction with the accompanying drawings.

[0032] The utility model provides an air cooler operation efficiency improvement system, such as Figure 1 As shown, it includes an air cooler provided with a tube bundle 1, on which a feed end for supplying gaseous materials, a liquid outlet end for discharging condensed liquid materials, and a gas outlet end for discharging non-condensable gas are provided, the gas outlet end is connected to a reflux tank 7, the top of the reflux tank 7 is connected to a tail gas discharge pipe 5, and a pressure relief valve 6 is provided on the tail gas discharge pipe 5.

[0033] It can be understood that the non-condensable gas inside the air cooler can enter the reflux tank 7 through the gas outlet end, and be discharged after the pressure is released by the reflux tank 7; wherein, after the non-condensable gas is discharged from the air cooler, the heat exchange area is increased, and it is easier to increase the lower liquid temperature, which is beneficial to improving the operating efficiency of the air cooler; and the pressure relief and diversion of the air cooler and the reflux tank 7 can avoid the phenomenon of gas-liquid entrainment in the tail gas discharge pipe 5, so as to reduce the processing volume and corresponding energy consumption of the back-end process; in addition, the gas outlet end and the reflux tank 7 are connected in series separately, which can effectively balance the pressure at both ends to stabilize the internal pressure and corresponding parameters of the tube bundle 1, which is beneficial to reduce the intensity of personnel monitoring and reduce the AB type parameter alarm, so as to make the distillation operation more stable.

[0034] In one embodiment, a first valve 4 is provided between the reflux tank 7 and the gas outlet to facilitate control of the gas flow between the gas outlet and the reflux tank 7 .

[0035] In one embodiment, one end of the first valve 4 away from the reflux tank 7 is connected to a plurality of gas outlet ends.

[0036] It can be understood that one end of the first valve 4 away from the reflux tank 7 is connected to a plurality of air outlet ends, that is, the first valve 4 can be connected to a plurality of air coolers, that is, the plurality of air coolers can achieve pressure relief through the reflux tank 7 .

[0037] In one embodiment, a second valve 3 is provided between any gas outlet and the first valve 4 to individually control the gas flow between the gas outlet of any air cooler and the reflux tank 7 .

[0038] In one embodiment, the air cooler includes a variable frequency fan 2 for cooling the tube bundle 1, a temperature sensor 9 is provided at the liquid outlet, and both the variable frequency fan 2 and the temperature sensor 9 are electrically connected to a controller.

[0039] It is understandable that the variable frequency fan 2 can cool the tube bundle 1 to adjust the lower liquid temperature at the liquid outlet, and the temperature sensor 9 can detect the lower liquid temperature at the liquid outlet, thereby facilitating and effectively controlling the lower liquid temperature to further improve the operating efficiency of the air cooler.

[0040] It should be noted that the controller can be a PCB board equipped with a C51 single-chip microcomputer.

[0041] In one embodiment, a temperature indicator 10 is provided at the liquid outlet.

[0042] It is understandable that the temperature indicator 10 can display the lower liquid temperature at the liquid end, thereby facilitating employees to determine the lower liquid temperature on site.

[0043] In one embodiment, a third valve 12 is provided at the liquid outlet to facilitate control of the flow of liquid phase material at the liquid outlet.

[0044] In one embodiment, a pressure indicator gauge 8 is provided at the feed end.

[0045] It can be understood that the pressure indicator 8 can display the pressure at the supply end, thereby facilitating employees to determine the pressure at the supply end on site.

[0046] In one embodiment, a fourth valve 11 is provided at the feed end to facilitate control of the flow of gaseous materials at the feed end.

[0047] The working process of the utility model is:

[0048] The gas phase material enters the tube bundle 1 of the air cooler from the feed end;

[0049] Part of the gaseous material is condensed into liquid material and enters the next process from the liquid outlet; while the non-condensable gas at the top is separately led out into the reflux tank 7, and discharged to the tail gas recovery process through the tail gas discharge pipe 5 at the top of the reflux tank 7.

[0050] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0051] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A system for improving the operating efficiency of an air cooler, comprising an air cooler provided with a tube bundle (1), characterized in that: The tube bundle (1) is provided with a feed end for feeding gaseous materials, a liquid outlet end for discharging condensed liquid materials, and a gas outlet end for discharging non-condensable gas. The gas outlet end is connected to a reflux tank (7). The top of the reflux tank (7) is connected to an exhaust gas discharge pipe (5). A pressure relief valve (6) is provided on the exhaust gas discharge pipe (5).

2. The air cooler operation efficiency improvement system according to claim 1, characterized in that: A first valve (4) is provided between the reflux tank (7) and the gas outlet end.

3. The air cooler operation efficiency improvement system according to claim 2, characterized in that: One end of the first valve (4) away from the reflux tank (7) is connected to a plurality of gas outlet ends.

4. The air cooler operation efficiency improvement system according to claim 3, characterized in that: A second valve (3) is provided between any of the gas outlet ends and the first valve (4).

5. The air cooler operation efficiency improvement system according to claim 1, characterized in that: The air cooler comprises a variable frequency fan (2) for cooling the tube bundle (1); a temperature sensor (9) is provided at the liquid outlet; and both the variable frequency fan (2) and the temperature sensor (9) are electrically connected to a controller.

6. The air cooler operation efficiency improvement system according to claim 1, characterized in that: The liquid outlet is provided with a temperature indicator (10).

7. The air cooler operation efficiency improvement system according to claim 6, characterized in that: The liquid outlet is provided with a third valve (12).

8. The air cooler operation efficiency improvement system according to claim 1, characterized in that: The feed end is provided with a pressure indicator (8).

9. The air cooler operation efficiency improvement system according to claim 8, characterized in that: The feeding end is provided with a fourth valve (11).

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