Biomass boiler sealing performance testing device

Abstract

The utility model discloses a biomass boiler sealing performance testing device which comprises an air compressor, the top of the air compressor is communicated with a communicating pipe, a pressure gauge is fixedly installed between the air compressor and the communicating pipe, and a port, far away from the air compressor, of the communicating pipe is in threaded connection with an installation pipe. And the bottom of the mounting pipe is fixedly connected with a regulating valve. The mounting pipe is in threaded connection with the port of the communicating pipe, and the furnace body pipeline is communicated with the inflating pipe body through the connecting hose, so that the sealing ring body on the inner surface of the connecting hose is tightly attached to the outer surface of the furnace body pipeline; the connecting hose is tightly pressed to enable the sealing ring body to be tightly attached to the outer surface of the furnace body pipeline, so that the sealing effect of the connecting position is improved, after connection is completed, the air compressor can be started, the furnace body is filled with gas, the gas flow is adjusted through the adjusting valve, certain pressure is filled, and the pressure change is observed through the pressure gauge.

Description

Technical Field

[0001] This utility model belongs to the field of biomass boiler testing technology, and in particular relates to a biomass boiler sealing performance testing device. Background Technology

[0002] Biomass boilers convert chemical energy into thermal energy by burning biomass fuel, producing high-temperature flue gas. The high-temperature flue gas passes through the boiler's heating surface, transferring heat to the working medium (water or steam), causing the working medium to heat up or generate steam. During the maintenance of biomass boilers, it is often necessary to perform a sealing test.

[0003] The most common method is to perform a pressure test. First, all openings and connections of the boiler are sealed with gas seals to ensure the boiler forms a sealed space. A certain pressure of gas, usually air or nitrogen, is then injected into the sealed boiler using a pressure source. Pressure sensors and gauges are then used to continuously monitor pressure changes inside the boiler. If the pressure remains stable within a specified time, the boiler is considered to be well-sealed; if the pressure drops rapidly, it indicates a leak. If a pressure drop is detected, a leak detector (such as soapy water) can be applied to potential leak areas to observe for bubbles and pinpoint the leak location.

[0004] The gas filling pipe and the furnace body pipe interface are generally connected by a flange port. The connection is sealed with a sealing ring and then tightened one by one with mounting bolts. However, with long-term use, the repeated rotation of the bolts may damage the sealing ring, causing the connection to loosen and resulting in poor sealing effect, thus reducing the accuracy of the test. Utility Model Content

[0005] The purpose of this invention is to provide a biomass boiler sealing performance testing device, which improves the sealing performance of the connection between the gas filling pipe and the boiler pipeline, thereby solving the aforementioned background technical problems.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A biomass boiler sealing performance testing device includes an air compressor, a connecting pipe connected to the top of the air compressor, a pressure gauge fixedly installed between the air compressor and the connecting pipe, an installation pipe threadedly connected to the port of the connecting pipe away from the air compressor, a regulating valve fixedly connected to the bottom of the installation pipe, a connecting hose connected to the end face of the installation pipe away from the connecting pipe through an air inflator, a sealing ring embedded in the inner surface of the connecting hose and located on the outer side, and a fastening component provided on the outer surface of the connecting hose, the connecting hose is compressed by the contraction of the fastening component, and at the same time the inner surface of the sealing ring is compressed, so that the inner surface of the sealing ring is tightly fitted with the outer surface of the connecting pipe.

[0007] Preferably, the fastening assembly includes a clamp wrapped around the outer surface of the connecting hose. Both ends of the clamp's notch are integrally formed with ring seats. A connecting shaft is rotatably attached to the inner surface of the rear ring seat. A rod is fixedly connected to the surface of the connecting shaft. A threaded bolt is fixedly connected to the end face of the rod away from the connecting shaft. A rotating cylinder is rotatably attached to the inner surface of the front ring seat. A sleeve is integrally fixedly connected to the front of the rotating cylinder. The threaded bolt penetrates the inner surface of the sleeve. A fastening nut is threadedly connected to the outer surface of the threaded bolt. One end face of the fastening nut is tightly fitted with the sleeve.

[0008] Preferably, the clamp is a flexible, bendable ring, and the clamp is pressed onto the outer ring of the sealing ring at a position corresponding to that position.

[0009] Preferably, the inner surface of the connecting hose has an annular groove that is adapted to the sealing ring body, and the sealing ring body is embedded in the inner surface of the groove.

[0010] Preferably, a pressure relief valve is connected to the bottom of the connecting pipe near the port of the mounting pipe.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses a threaded connection to the port of the connecting pipe and a connecting hose to connect the furnace body pipe and the gas filling pipe. This allows the sealing ring on the inner surface of the connecting hose to fit tightly against the outer surface of the furnace body pipe. The fastening component, with its flexibility, presses the connecting hose to ensure the sealing ring fits tightly against the outer surface of the furnace body pipe, thus increasing the sealing effect at the connection. After the connection is completed, the air compressor can be turned on to fill the furnace with gas. The gas flow rate can be adjusted by the regulating valve. After filling to a certain pressure, the pressure change can be observed by the pressure gauge.

[0013] 2. In this utility model, a clamp is fitted onto the outer surface of the connecting hose and positioned corresponding to the sealing ring. Then, the fastening nut is rotated, causing the fastening nut to rotate on the outer surface of the threaded bolt. The rotation of the fastening nut drives the rod to move. Since the rotating drum and the connecting shaft are respectively attached to and rotate on the inner surface of the corresponding ring seat, and the flexibility of the clamp is utilized to shrink the clamp, thereby compressing the connecting hose.

[0014] 3. This utility model sets a groove so that the sealing ring is embedded in the inner surface of the groove, thereby limiting the position of the sealing ring.

[0015] 4. By setting a pressure relief valve, the gas in the furnace body can be discharged when there is no leakage in the furnace body. Attached Figure Description

[0016] in:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the air inflator and the connecting hose of this utility model;

[0019] Figure 3 This is a partial enlarged view of point A of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Air compressor; 2. Connecting pipe; 3. Pressure gauge; 4. Installation pipe; 5. Regulating valve; 6. Inflation pipe body; 7. Connecting hose; 8. Sealing ring body; 9. Clamp; 10. Ring seat; 11. Connecting shaft; 12. Rod body; 13. Threaded bolt; 14. Rotary drum; 15. Sleeve seat; 16. Fastening nut; 17. Groove; 18. Pressure relief valve. Detailed Implementation

[0022] In the following description, an embodiment of the biomass boiler sealing performance testing device of the present invention will be described with reference to the accompanying drawings.

[0023] Example 1:

[0024] Figure 1-3This invention illustrates a biomass boiler sealing performance testing device according to an embodiment of the present invention. It includes an air compressor 1, a connecting pipe 2 connected to the top of the air compressor 1, a pressure gauge 3 fixedly installed between the air compressor 1 and the connecting pipe 2, an installation pipe 4 threadedly connected to the end of the connecting pipe 2 away from the air compressor 1, a regulating valve 5 fixedly connected to the bottom of the installation pipe 4, and a connecting hose 7 connected to the end face of the installation pipe 4 away from the connecting pipe 2 via an air inlet pipe 6. A sealing ring 8 is embedded in the inner surface of the connecting hose 7 at its outer position, and a fastening assembly is provided on the outer surface of the connecting hose 7, including a clamp wrapped around the outer surface of the connecting hose 7. 9. The clamp 9 is a flexible, bendable ring. The clamp 9 is pressed onto the outer ring of the sealing ring 8 at the corresponding position. Both ends of the notch of the clamp 9 are integrally formed with ring seats 10. The inner surface of the rear ring seat 10 is fitted with a rotatable connecting shaft 11. The surface of the connecting shaft 11 is fixedly connected to a rod 12. The end face of the rod 12 away from the connecting shaft 11 is fixedly connected to a threaded bolt 13. The inner surface of the front ring seat 10 is fitted with a rotatable rotating cylinder 14. The front of the rotating cylinder 14 is integrally fixedly connected to a sleeve 15. The threaded bolt 13 penetrates the inner surface of the sleeve 15. The outer surface of the threaded bolt 13 is threadedly connected to a fastening nut 16. One end face of the fastening nut 16 is connected to the sleeve 15. The clamp 9 is fitted tightly onto the outer surface of the connecting hose 7, corresponding to the sealing ring 8. Then, the fastening nut 16 is rotated, causing it to rotate on the outer surface of the threaded bolt 13. This rotation of the fastening nut 16 moves the rod 12. Since the rotating drum 14 and connecting shaft 11 rotate against the inner surfaces of their respective ring seats 10, and the clamp 9 is flexible enough to contract, the connecting hose 7 is compressed. The contraction of the fastening assembly compresses the connecting hose 7 and simultaneously compresses the inner surface of the sealing ring 8, ensuring that the inner surface of the sealing ring 8 is flush with the connecting pipe. The outer surface of the tube is tightly fitted, and the tube 4 is threaded to the port of the connecting tube 2. The furnace body pipe and the gas filling pipe 6 are connected by the connecting hose 7, so that the sealing ring 8 on the inner surface of the connecting hose 7 is tightly fitted to the outer surface of the furnace body pipe. The connecting hose 7 is pressed tightly by the fastening component using its own flexibility, so that the sealing ring 8 is tightly fitted to the outer surface of the furnace body pipe, thereby increasing the sealing effect at the connection. After the connection is completed, the air compressor 1 can be turned on and the furnace body can be filled with gas. The gas flow rate can be adjusted by the regulating valve 5. After filling to a certain pressure, the pressure change can be observed by the pressure gauge 3.

[0025] Example 2:

[0026] Figure 1-3This invention illustrates a biomass boiler sealing performance testing device according to an embodiment of the present invention. It includes an air compressor 1, a connecting pipe 2 connected to the top of the air compressor 1, a pressure gauge 3 fixedly installed between the air compressor 1 and the connecting pipe 2, an installation pipe 4 threadedly connected to the end of the connecting pipe 2 away from the air compressor 1, a regulating valve 5 fixedly connected to the bottom of the installation pipe 4, and a connecting hose 7 connected to the end face of the installation pipe 4 away from the connecting pipe 2 via an air inlet pipe 6. A sealing ring 8 is embedded in the inner surface of the connecting hose 7 at its outer position, and a fastening assembly is provided on the outer surface of the connecting hose 7. The tightening of the fastening assembly tightens the connection hose. The pipe 7 is compressed, and at the same time, the inner surface of the sealing ring 8 is compressed, so that the inner surface of the sealing ring 8 is tightly fitted with the outer surface of the connecting pipe. The inner surface of the connecting hose 7 has an annular groove 17 that is adapted to the sealing ring 8. The sealing ring 8 is embedded in the inner surface of the groove 17. By setting the groove 17, the sealing ring 8 is embedded in the inner surface of the groove 17, thereby limiting the position of the sealing ring 8. The bottom of the connecting pipe 2 near the port of the installation pipe 4 is connected to a pressure relief valve 18. By setting the pressure relief valve 18, when there is no leakage in the furnace body, the gas in the furnace body can be discharged through the pressure relief valve 18.

[0027] Working Principle: In use, this utility model connects the installation pipe 4 to the end of the connecting pipe 2 via a threaded connection, and connects the furnace body pipe and the gas filling pipe 6 via a connecting hose 7. This ensures that the sealing ring 8 on the inner surface of the connecting hose 7 is tightly fitted to the outer surface of the furnace body pipe. A clamp 9 is fitted onto the outer surface of the connecting hose 7, corresponding to the sealing ring 8. Then, the fastening nut 16 is rotated, causing it to rotate on the outer surface of the threaded bolt 13. This rotation of the fastening nut 16 drives the rod 12 to move. Since the rotating drum 14 and the connecting shaft 11 rotate and fit against the inner surface of their respective ring seats 10,... By utilizing the flexibility of clamp 9, clamp 9 can be contracted to compress the connecting hose 7. Compressing the connecting hose 7 allows the sealing ring 8 to fit tightly against the outer surface of the furnace body pipe, thereby increasing the sealing effect at the connection. After the connection is completed, the air compressor 1 can be turned on to fill the furnace with gas. The gas flow rate can be adjusted by regulating valve 5. After filling to a certain pressure, the pressure change can be observed through pressure gauge 3. If the pressure drops rapidly, it indicates a leak. If a pressure drop is found, a leak detector (such as soapy water) can be applied to the possible leak area to observe whether bubbles are generated to determine the location of the leak.

Claims

1. A biomass boiler sealing performance testing device, comprising an air compressor (1), characterized in that, The top of the air compressor (1) is connected to a connecting pipe (2). A pressure gauge (3) is fixedly installed between the air compressor (1) and the connecting pipe (2). The port of the connecting pipe (2) away from the air compressor (1) is threadedly connected to an installation pipe (4). A regulating valve (5) is fixedly connected to the bottom of the installation pipe (4). The end face of the installation pipe (4) away from the connecting pipe (2) is connected to a connecting hose (7) through an inflation pipe body (6). A sealing ring body (8) is embedded on the inner surface of the connecting hose (7) and located on the outer side. A fastening component is provided on the outer surface of the connecting hose (7). The connecting hose (7) is pressed by the contraction of the fastening component, and at the same time, the inner surface of the sealing ring body (8) is pressed, so that the inner surface of the sealing ring body (8) is tightly fitted with the outer surface of the connecting pipe.

2. The biomass boiler sealing performance testing device according to claim 1, characterized in that, The fastening assembly includes a clamp (9) wrapped around the outer surface of the connecting hose (7). Both ends of the clamp (9) are integrally formed with ring seats (10). The inner surface of the rear ring seat (10) is fitted with a connecting shaft (11). A rod (12) is fixedly connected to the surface of the connecting shaft (11). A threaded bolt (13) is fixedly connected to the end face of the rod (12) away from the connecting shaft (11). A rotating cylinder (14) is fitted with the inner surface of the front ring seat (10). A sleeve (15) is integrally fixedly connected to the front of the rotating cylinder (14). The threaded bolt (13) penetrates the inner surface of the sleeve (15). A fastening nut (16) is threadedly connected to the outer surface of the threaded bolt (13). One end face of the fastening nut (16) is tightly fitted with the sleeve (15).

3. The biomass boiler sealing performance testing device according to claim 2, characterized in that, The clamp (9) is a flexible bendable ring body, and the clamp (9) is pressed onto the outer ring of the sealing ring body (8) at the corresponding position.

4. The biomass boiler sealing performance testing device according to claim 1, characterized in that, The inner surface of the connecting hose (7) is provided with an annular groove (17) that is adapted to the sealing ring body (8), and the sealing ring body (8) is embedded in the inner surface of the groove (17).

5. The biomass boiler sealing performance testing device according to claim 1, characterized in that, The bottom of the connecting pipe (2) near the port of the mounting pipe (4) is connected to a pressure relief valve (18).

Images