Waste heat boiler inner leakage monitoring device

Abstract

The utility model provides a waste heat boiler inner leakage monitoring device, which relates to the field of waste heat boiler inner leakage monitoring equipment, and comprises a cooler and water seal equipment communicated with the cooler, the water seal equipment comprises a runner pipe, a ball bladder, a pressure gauge and an alarm, the ball bladder is movably connected with the tail end of the runner pipe, and the pressure gauge is connected with the alarm. The pressure gauge is arranged on the circulating pipe and is close to the ball bladder; the alarm is arranged on the waste heat boiler and is electrically connected with the pressure gauge; according to the device, the non-condensable gas can be temporarily stored through the ball bladder when the inner leakage phenomenon of the boiler occurs, meanwhile, alarm reminding can be automatically triggered after the pressure value change is detected, the amount of the non-condensable gas directly overflowing into the surrounding environment is remarkably reduced, meanwhile, manual detection at one end of the runner pipe is not needed, and the detection efficiency is improved. The monitoring effect of the inner leakage of the waste heat boiler is obviously improved, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat boiler internal leakage monitoring equipment, and more specifically, to a waste heat boiler internal leakage monitoring device. Background Technology

[0002] A waste heat boiler is a heat exchanger that uses high-temperature, high-pressure process gas to exchange heat with boiler water, cooling the process gas while simultaneously heating the boiler water to produce saturated steam as a byproduct. If a leak occurs in the waste heat boiler, the high-temperature, high-pressure process gas can enter the steam pipeline network, resulting in steam containing toxic, flammable, explosive, and corrosive gases. This can affect the user's normal production and safe operation, and corrode equipment. Large leaks can also cause overpressure in the waste heat boiler or even an explosion, leading to safety accidents.

[0003] The current method for detecting internal leaks in waste heat boilers involves the following steps:

[0004] (1) A steam sampling pipe is led from the steam outlet pipe of the waste boiler to the cooler;

[0005] (2) The steam cooled by the cooler becomes condensate and is then led into the water seal device. The water seal device includes a water seal pool and an inner cylinder set in the water seal pool. A flow area is opened at the bottom of the inner cylinder. If the condensate does not contain non-condensable gas, a portion of the water will be discharged into the ditch from the overflow pipe. If the condensate contains non-condensable gas, the non-condensable gas will flow to the outside from the flow pipe connected to the top of the inner cylinder.

[0006] (3) A portable handheld alarm device is required to detect the waste boiler at the end of the flow pipe. If non-condensable gas is found, the waste boiler should be treated immediately.

[0007] The above methods require manual intervention for detection, which is not convenient. In conclusion, the effectiveness of monitoring leaks inside waste cookers needs to be further improved. Utility Model Content

[0008] The purpose of this invention is to solve the problems mentioned in the background art and to propose a waste heat boiler internal leakage monitoring device.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A waste heat boiler internal leakage monitoring device includes a cooler and a water seal device connected to the cooler. The water seal device includes a flow pipe, a bladder, a pressure gauge and an alarm.

[0011] The bulb is movably connected to the end of the flow tube;

[0012] The pressure gauge is mounted on the flow tube and close to the bulb.

[0013] The alarm is installed on the waste heat boiler and electrically connected to the pressure gauge.

[0014] Furthermore, the flow pipe includes a first branch pipe connecting to the water seal device and a second branch pipe connecting to the bladder.

[0015] The first branch pipe and the second branch pipe are connected by a tee pipe.

[0016] The left and upper pipes of the tee are respectively equipped with a second solenoid valve and a first solenoid valve with independent control.

[0017] The upper part of the tee pipe is connected to the pressure relief pipe, and one end of the pressure relief pipe is connected to the purification equipment.

[0018] When manual intervention is not possible to address the boiler leak, non-condensable gas will continuously be injected into the bladder. Once the bladder is full, the pressure in the flow pipe will reach its maximum. The pressure gauge will then send a signal back to the controller, which will open the second solenoid valve while simultaneously closing the first solenoid valve. The pressure will then be released through the pressure relief pipe to prevent excessive pressure from damaging the bladder. This portion of non-condensable gas can then be processed in the purification equipment before being released to the outside.

[0019] Furthermore, an air pump is installed between the pressure relief pipe and the purification equipment.

[0020] The purpose of the air pump in the above scheme is to extract the non-condensable gas in the bladder, so that the bladder does not need to be disassembled and replaced later, and the probability of non-condensable gas leakage is further reduced.

[0021] Furthermore, the bladder and the flow tube are movably connected by a threaded joint.

[0022] Furthermore, a sealing ring is added at the connection between the bladder and the threaded joint.

[0023] The above solution allows for easy disassembly of the bladder and the flow pipe via a threaded connector, while the sealing ring reduces the probability of non-condensable gas leakage.

[0024] Furthermore, the flow tube is a high-pressure tube.

[0025] The flow tube in the above scheme has good pressure resistance.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] Compared to existing technologies, this device can temporarily store non-condensable gases when boiler internal leakage occurs through a spherical bladder. It can also automatically trigger an alarm when a pressure change is detected, thus significantly reducing the amount of non-condensable gases that directly overflow into the surrounding environment. Furthermore, it eliminates the need for manual detection at one end of the flow pipe, significantly improving the monitoring effect of waste heat boiler internal leakage and enhancing safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 for Figure 1 Enlarged view of section A (labeled A);

[0030] Figure label:

[0031] 1. Cooler; 2. Water seal device; 3. Flow pipe; 4. Ball bladder; 5. Pressure gauge; 6. T-pipe; 7. First solenoid valve; 8. Second solenoid valve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0033] like Figure 1 and Figure 2 As shown, a waste heat boiler internal leakage monitoring device includes a cooler 1 and a water seal device 2 connected to the cooler 1. The water seal device 2 includes a flow pipe 3, a ball 4, a pressure gauge 5, and an alarm.

[0034] The bulb 4 is movably connected to the end of the flow tube 3;

[0035] Pressure gauge 5 is installed on flow tube 3 and close to bulb 4;

[0036] The alarm is installed on the waste heat boiler and electrically connected to pressure gauge 5 (neither the waste heat boiler nor the alarm is shown in the figure).

[0037] Specifically, the bladder 4 and the flow tube 3 are connected by a threaded joint; the threaded joint is not shown in the figure.

[0038] In a further optimization of the above embodiment, a sealing ring is added at the connection between the bladder 4 and the threaded joint, and the flow pipe 3 is a high-pressure pipe.

[0039] It should be noted that the cooler 1, pressure gauge 5, and alarm are all electrically connected to the controller, which is not shown in the figure.

[0040] The working process of this utility model:

[0041] First, the high-temperature and high-pressure process gas is cooled by a waste heat boiler. The resulting steam is then injected into cooler 1, where it becomes condensate and, under the pressure of cooler 1, enters the inner cylinder of water seal device 2.

[0042] If a boiler leak occurs, the condensate contains non-condensable gas, which will then be injected into the bladder 4 through the flow pipe 3. At the same time, the pressure gauge 5 will gradually increase (it should be noted that the pressure value remains constant when the boiler does not leak). The pressure gauge 5 will then send a signal to the controller, which will then activate the alarm to alert the staff to handle the boiler leak.

[0043] After the boiler internal leakage is dealt with, the ball bladder 4 can be manually removed from the flow pipe 3 and replaced. The ball bladder 4 has good sealing performance for non-condensable gases when it is not removed and replaced.

[0044] Compared to existing technologies, this device can temporarily store non-condensable gases when boiler internal leakage occurs through a spherical bladder. It can also automatically trigger an alarm when a pressure change is detected, thus significantly reducing the amount of non-condensable gases that directly overflow into the surrounding environment. Furthermore, it eliminates the need for manual detection at one end of the flow pipe, significantly improving the monitoring effect of waste heat boiler internal leakage and enhancing safety.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the flow pipe 3 includes a first branch pipe connecting to the water seal device 2 and a second branch pipe connecting to the bladder 4.

[0046] The first branch pipe and the second branch pipe are connected by a tee pipe 6.

[0047] The left and upper pipes of the three-way pipe 6 are respectively equipped with an independently controlled second solenoid valve 8 and a first solenoid valve 7.

[0048] The upper pipe of the three-way pipe 6 is connected to the pressure relief pipe, and one end of the pressure relief pipe is connected to the purification equipment (the pressure relief pipe and the purification equipment are not shown in the figure, and the purification equipment is existing technology and will not be improved); In this embodiment, when the boiler internal leakage cannot be dealt with in time, non-condensable gas will be continuously injected into the bladder 4. When the bladder 4 is full, the pressure value in the flow pipe 3 reaches the maximum, and the pressure gauge 5 feeds back a signal to the controller. Then the controller controls the second solenoid valve 8 to open, and at the same time the first solenoid valve 7 closes. Then the pressure relief process can be carried out through the pressure relief pipe to avoid the gas pressure from being too high and damaging the bladder 4. Then this part of non-condensable gas can be passed into the purification equipment for treatment and then discharged to the outside.

[0049] In a further optimization of the above embodiment, an air pump is installed between the pressure relief pipe and the purification equipment. The significance of installing the air pump in this embodiment is that the non-condensable gas in the bladder 4 can be extracted together, so that the bladder 4 does not need to be disassembled and replaced in the future, and the probability of non-condensable gas overflow is further reduced.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat boiler internal leakage monitoring device, comprising a cooler (1) and a water seal device (2) connected to the cooler (1), the water seal device (2) comprising a flow pipe (3), characterized in that, It also includes a bulb (4), a pressure gauge (5), and an alarm; The bulb (4) is movably connected to the end of the flow tube (3); The pressure gauge (5) is installed on the flow tube (3) and close to the bulb (4); The alarm is installed on the waste heat boiler and electrically connected to the pressure gauge (5).

2. The waste heat boiler internal leakage monitoring device according to claim 1, characterized in that, The flow pipe (3) includes a first branch pipe that connects to the water seal device (2) and a second branch pipe that connects to the bladder (4). The first branch pipe and the second branch pipe are connected by a tee pipe (6); The left and upper pipes of the three-way pipe (6) are respectively equipped with a second solenoid valve (8) and a first solenoid valve (7) with independent control. The upper pipe of the tee pipe (6) is connected to the pressure relief pipe, and one end of the pressure relief pipe is connected to the purification equipment.

3. The waste heat boiler internal leakage monitoring device according to claim 2, characterized in that, An air pump is installed between the pressure relief pipe and the purification equipment.

4. The waste heat boiler internal leakage monitoring device according to claim 1, characterized in that, The bladder (4) and the flow tube (3) are movably connected by a threaded joint.

5. The waste heat boiler internal leakage monitoring device according to claim 4, characterized in that, A sealing ring is added to the connection between the bladder (4) and the threaded joint.

6. The waste heat boiler internal leakage monitoring device according to claim 1, characterized in that, The flow tube (3) is a high-pressure tube.

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