A bellows connector buffer tank

Abstract

This utility model relates to the field of boiler buffer tank technology, and more particularly to a corrugated pipe connector buffer tank, which includes a support plate, a spherical buffer tank disposed on the upper side of the support plate, and a corrugated pipe connector assembly and a pressure relief assembly disposed on the outer wall of the spherical buffer tank. The pressure relief assembly includes a pressure relief pipe, which is fixedly connected to and installed on the outer wall of the spherical buffer tank. An abutment ring seat is fixedly installed on the inner wall of the pressure relief pipe. A self-locking electric push rod is disposed on the upper inner end of the pressure relief pipe. A pressure sensor is fixedly installed on the output end of the self-locking electric push rod. A telescopic rod is fixedly installed below the pressure sensor. A valve plate is fixedly installed at the lower end of the telescopic rod. A spring is sleeved on the outer side of the telescopic rod. A second sealing ring is fixedly installed below the valve plate. This utility model, through the configured pressure relief assembly, can flexibly adjust the automatic pressure relief threshold by controlling the extension and retraction of the automatic electric push rod, and can flexibly adjust according to different operating conditions, thus improving the applicability of this utility model.

Description

Technical Field

[0001] This utility model relates to the field of boiler buffer tank technology, and in particular to a corrugated pipe connector buffer tank. Background Technology

[0002] In modern industry, boilers are crucial heat energy supply equipment, and their safe and stable operation is of paramount importance. Corrugated pipe connectors and buffer tanks, as key components in boiler systems, are primarily used to mitigate pressure fluctuations during system operation, preventing damage to the boiler and related piping equipment due to sudden pressure changes.

[0003] However, existing bellows-connected buffer tanks have certain limitations in practical applications. When the operating conditions of the boiler system change, such as a sudden increase or decrease in load, the pressure inside the buffer tank may rise sharply. If the pressure exceeds the tolerance range of the tank or related equipment, it will pose a serious threat to the safety of the entire boiler system. Currently, most buffer tanks on the market use pressure relief devices with fixed pressure thresholds. Once installed, the pressure relief value of such devices is difficult to change, and cannot be flexibly adjusted according to different boiler operating conditions, medium characteristics, and external environmental conditions.

[0004] Therefore, there is an urgent need to invent a bellows connector buffer tank that can flexibly adjust the pressure relief threshold according to actual usage conditions and automatically relieve pressure when the pressure is too high, so as to improve the safety, stability and economy of boiler system operation. To this end, we have proposed a bellows connector buffer tank. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a corrugated pipe connector buffer tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A corrugated pipe connector buffer tank includes a support plate, a spherical buffer tank is disposed on the upper side of the support plate, and a corrugated pipe connector assembly and a pressure relief assembly are disposed on the outer wall of the spherical buffer tank; the pressure relief assembly includes a pressure relief pipe, which is fixedly connected and installed on the outer wall of the spherical buffer tank, and an abutment ring seat is fixedly installed on the inner side wall of the pressure relief pipe. A self-locking electric push rod is disposed on the upper inner side of the pressure relief pipe, a pressure sensor is fixedly installed on the output end of the self-locking electric push rod, a telescopic rod is fixedly installed on the lower side of the pressure sensor, a valve plate is fixedly installed on the lower end of the telescopic rod, a spring is sleeved on the outer side of the telescopic rod, a second sealing ring is fixedly installed on the lower side of the valve plate, the second sealing ring abuts against the upper side of the abutment ring seat, and a plurality of vent holes are equidistantly opened on the side wall of the valve plate.

[0008] Furthermore, the vent extends to the upper side of the valve plate, and the outer diameter of the valve plate is smaller than the inner diameter of the pressure relief pipe.

[0009] Furthermore, a collar is screwed onto the outer wall of the pressure relief pipe, and several connecting rods are fixedly connected between the collar and the outer wall of the self-locking electric push rod.

[0010] Furthermore, the corrugated pipe connection assembly includes a connecting pipe and a high-strength stainless steel corrugated pipe. The connecting pipe is fixedly installed on the outer wall of the spherical buffer tank. A flange is fixedly installed on the outer end of the connecting pipe. A first mating flange and a second mating flange are fixedly connected to both ends of the high-strength stainless steel corrugated pipe, respectively. The first mating flange is screwed to the flange.

[0011] Furthermore, a first sealing ring is embedded in the flange, and a spiral air inlet is fixedly installed on the inner wall of the connecting pipe. Both the first and second sealing rings are made of high-temperature resistant rubber.

[0012] Furthermore, several reinforcing rods are fixedly connected to the inner wall of the spherical buffer tank.

[0013] Furthermore, a pressure gauge is fixedly installed on the outer wall of the spherical buffer tank, the detection end of the pressure gauge extends into the interior of the spherical buffer tank, an arc groove is fixedly installed on the upper side of the support plate, the spherical buffer tank is placed on the upper side of the arc groove, and a controller is fixedly installed on the upper side of the support plate.

[0014] Furthermore, an output pipe is fixedly connected to the right side of the spherical buffer tank, and a solenoid valve is fixedly installed on the output pipe.

[0015] Compared with related technologies, the corrugated pipe connector buffer tank proposed in this utility model has the following beneficial effects:

[0016] In this utility model, a bellows connector buffer tank is described. The buffer tank of this utility model adopts a spherical shape. Compared with the traditional cylindrical buffer tank, the internal stress distribution of the spherical buffer tank is more uniform. At the same time, several sets of distributed reinforcing rods are set inside, which greatly improves the structural strength of the entire spherical buffer tank. In addition, a pressure relief component is also provided on the spherical buffer tank. When the self-locking electric push rod in the hydraulic component is activated, it can drive the distance between its output end and the valve plate to adjust, thereby changing the compression of the spring. The rebound force provided by the spring can be monitored in real time by a pressure sensor. When the pressure inside the spherical buffer tank is greater than the rebound force provided by the spring, the valve plate will be pushed upward to automatically relieve pressure. This pressure relief component can flexibly adjust the automatic pressure relief threshold by controlling the extension and retraction of the automatic electric push rod, and can be flexibly adjusted according to different operating conditions, thus improving the applicability of this utility model. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a corrugated pipe connector buffer tank proposed in this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of a corrugated pipe connector buffer tank proposed in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the bellows connection assembly;

[0020] Figure 4 A three-dimensional structural diagram of some components of the bellows connection assembly;

[0021] Figure 5 This is a three-dimensional structural diagram of the pressure relief assembly;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of some components of the pressure relief assembly Figure 1 ;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of some components of the pressure relief assembly Figure 2 .

[0024] In the diagram: 1. Support plate; 2. Arc groove; 3. Spherical buffer tank; 4. Pressure gauge; 5. Bellows connection assembly; 51. Connecting pipe; 52. Flange; 53. First mating flange; 54. High-strength stainless steel bellows; 55. Second mating flange; 56. First sealing ring; 57. Spiral air inlet; 6. Pressure relief assembly; 61. Pressure relief pipe; 62. Abutment ring seat; 63. Collar; 64. Connecting rod; 65. Self-locking electric push rod; 66. Valve plate; 67. Second sealing ring; 68. Exhaust port; 69. Telescopic rod; 610. Pressure sensor; 611. Spring; 7. Output pipe; 8. Solenoid valve; 9. Controller; 10. Reinforcing rod. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1-7A corrugated pipe connector buffer tank includes a support plate 1, a spherical buffer tank 3 on the upper side of the support plate 1, a corrugated pipe connector assembly 5 and a pressure relief assembly 6 on the outer wall of the spherical buffer tank 3; the pressure relief assembly 6 includes a pressure relief pipe 61, which is fixedly connected to the outer wall of the spherical buffer tank 3, and an abutment ring seat 62 is fixedly installed on the inner side wall of the pressure relief pipe 61. A self-locking electric push rod 65 is provided at the upper inner end of the pressure relief pipe 61, a pressure sensor 610 is fixedly installed at the output end of the self-locking electric push rod 65, a telescopic rod 69 is fixedly installed below the pressure sensor 610, a valve plate 66 is fixedly installed at the lower end of the telescopic rod 69, a spring 611 is sleeved on the outer side of the telescopic rod 69, a second sealing ring 67 is fixedly installed below the valve plate 66, the second sealing ring 67 abuts against the upper side of the abutment ring seat 62, and a plurality of vent holes 68 are equidistantly opened on the side wall of the valve plate 66.

[0027] In this method, several reinforcing rods 10 are fixedly connected to the inner wall of the spherical buffer tank 3.

[0028] By setting up the above-mentioned reinforcement rod 10, the internal strength of the spherical buffer tank 3 is greatly improved, thereby enhancing the safety of the spherical buffer tank 3 in use.

[0029] In this configuration, the vent 68 extends to the upper side of the valve plate 66, the outer diameter of the valve plate 66 is smaller than the inner diameter of the pressure relief pipe 61, and a collar 63 is screwed onto the outer wall of the pressure relief pipe 61. Several connecting rods 64 are fixedly connected between the collar 63 and the outer wall of the self-locking electric push rod 65.

[0030] With the above-mentioned configuration, the self-locking electric push rod 65 has a self-locking function after the drive is completed, which enables the output end to have stability after adjusting the deformation of the spring 611.

[0031] In this method, the bellows connection assembly 5 includes a connecting pipe 51 and a high-strength stainless steel bellows 54. The connecting pipe 51 is fixedly connected to the outer wall of the spherical buffer tank 3. A flange 52 is fixedly installed at the outer end of the connecting pipe 51. A first mating flange 53 and a second mating flange 55 are fixedly connected to both ends of the high-strength stainless steel bellows 54, respectively. The first mating flange 53 is screwed to the flange 52. A first sealing ring 56 is embedded on the flange 52. A spiral air inlet 57 is fixedly installed on the inner wall of the connecting pipe 51. The first sealing ring 56 and the second sealing ring 67 are both made of high-temperature resistant rubber.

[0032] Through the above-described configuration, the high-strength stainless steel corrugated pipe 54 is used to connect the boiler, thereby connecting the boiler to this device and preventing excessive pressure inside the boiler, thus providing a buffer and pressure relief effect. The spiral air inlet 57 ensures that when the gas in the boiler flows into the spherical buffer tank 3, it does so in a spiral manner, reducing the impact of the gas on the inner wall of the spherical buffer tank 3 and thus improving the protection of the spherical buffer tank 3. The high-strength stainless steel corrugated pipe 54 has a self-adaptive deformation function, which can adapt to docking installation work at a certain angle.

[0033] In this method, a pressure gauge 4 is fixedly installed on the outer wall of the spherical buffer tank 3, and the detection end of the pressure gauge 4 extends into the interior of the spherical buffer tank 3. An arc groove 2 is fixedly installed on the upper side of the support plate 1, and the spherical buffer tank 3 is placed on the upper side of the arc groove 2. A controller 9 is fixedly installed on the upper side of the support plate 1.

[0034] With the above-mentioned setup, pressure gauge 4 is used to monitor the pressure inside spherical buffer tank 3, and controller 9 is used to control the working status of each electrical component in this utility model.

[0035] In this configuration, an output pipe 7 is fixedly connected to the right side of the spherical buffer tank 3, and a solenoid valve 8 is fixedly installed on the output pipe 7.

[0036] With the above-described configuration, the output pipe 7 is used to introduce the gas in the spherical buffer tank 3 into the thermal circulation system. In industry, to avoid the waste of thermal energy, the gas in the spherical buffer tank 3 can be introduced into the thermal energy circulation system to reduce the waste of thermal energy and improve the overall utilization rate of energy.

[0037] In this specific implementation, the self-locking electric push rod 65 is connected to the controller 9 via a wire, and the controller 9 has a built-in pressure threshold adjustment program. When it is necessary to adjust the pressure relief threshold, the technician can input the target pressure value through the operating interface of the controller 9. The controller 9 compares this target pressure value with the pressure value inside the spherical buffer tank 3, which is fed back in real time by the pressure gauge 4. If it is necessary to increase the pressure relief threshold, the controller 9 sends an extension command to the self-locking electric push rod 65. The extension of the self-locking electric push rod 65 causes the pressure sensor 610 and the valve plate 66 to move downward, further compressing the spring 611 and increasing the rebound force of the spring 611. If it is necessary to decrease the pressure relief threshold, the controller 9 sends a shortening command to the self-locking electric push rod 65, reducing the compression of the spring 611 and decreasing the rebound force. The pressure sensor 610 monitors the rebound force of the spring 611 in real time and feeds the data back to the controller 9 to ensure the accuracy of the pressure relief threshold adjustment.

[0038] Furthermore, the spiral air intake duct 57 is arranged in a 180° spiral on the inner wall of the connecting pipe 51, with the spiral rising to a height of two-thirds of the length of the connecting pipe 51. This design extends the spiral path of the gas as it enters the spherical buffer tank 3, slows down the gas flow rate, and continuously changes the airflow direction. This greatly disperses the impact force of the gas on the inner wall of the spherical buffer tank 3, reducing the impact force on the inner wall by approximately 40%-50% compared to traditional air intake methods.

[0039] In the specific implementation of this application, an intelligent early warning function is also provided. The controller 9 has a built-in pressure anomaly judgment program. When the pressure gauge 4 detects that the pressure in the spherical buffer tank 3 rises sharply in a short period of time and the rate of rise exceeds the preset threshold (e.g., 0.5 MPa per second), in addition to controlling the self-locking electric push rod 65 to adjust the pressure relief threshold, the controller 9 will also trigger the audible and visual alarm (not shown in the figure) installed on the support plate 1 to remind the operator by flashing red light and beeping. At the same time, the pressure anomaly information is sent to the operator's mobile terminal device through a wireless communication module (not shown in the figure, but existing mature technologies such as Bluetooth and WiFi can be used) so that timely measures can be taken, further improving the safety of the boiler system operation.

[0040] The working principle of the corrugated pipe connector buffer tank provided by this utility model is as follows:

[0041] 1. Gas introduction and buffering

[0042] The gas generated by the boiler system enters the spherical buffer tank 3 through the bellows connection assembly 5. When the gas enters the spherical buffer tank 3 through the connecting pipe 51, the spiral air inlet 57 on the inner wall of the connecting pipe 51 plays a role, causing the gas to enter in a spiral shape. This air inlet method can reduce the direct impact of the gas on the inner wall of the spherical buffer tank 3, reduce the pressure on the inner wall, thereby protecting the spherical buffer tank 3 and extending its service life. At the same time, the spherical design of the spherical buffer tank 3 makes its internal stress distribution more uniform. Combined with several internally fixed reinforcing rods 10, the structural strength and stability of the buffer tank are further improved, effectively coping with the pressure generated when the gas enters.

[0043] 2. Pressure monitoring and regulation

[0044] During the operation of the spherical buffer tank 3, a pressure gauge 4 installed on its outer wall monitors the internal pressure in real time and feeds the data back to the controller 9 on the support plate 1. When the operating conditions of the boiler system change, causing the internal pressure of the spherical buffer tank 3 to rise, the pressure relief component 6 begins to function. The self-locking electric push rod 65 can adjust its output position according to actual needs through the controller 9, thereby changing the distance between it and the valve plate 66, and thus adjusting the compression of the spring 611. The rebound force provided by the spring 611 is monitored in real time by the pressure sensor 610, and the data is transmitted to the controller 9. When the pressure inside the spherical buffer tank 3 exceeds the rebound pressure provided by the spring 611, the valve plate 66 is subjected to upward pressure, overcomes the resistance of the spring 611 and moves upward. The second sealing ring 67 on the lower side of the valve plate 66 separates from the abutment ring seat 62, and the gas is discharged through the exhaust hole 68 on the side wall of the valve plate 66, realizing automatic pressure relief and avoiding damage to the boiler and related equipment due to excessive pressure. In addition, by adjusting the extension and retraction of the self-locking electric push rod 65, the automatic pressure relief threshold can be flexibly adjusted, so that it can adapt to different boiler operating conditions, medium characteristics and external environment, greatly improving the applicability of the buffer tank.

[0045] 3. Gas output and thermal energy utilization

[0046] Once the pressure inside the spherical buffer tank 3 reaches a suitable range, to avoid heat energy waste and improve overall energy utilization, gas can be introduced into the thermal circulation system through the output pipe 7. The solenoid valve 8, installed on the output pipe 7, is controlled by the controller 9. When gas needs to be output, the controller 9 issues a command to open the solenoid valve 8, allowing the gas inside the spherical buffer tank 3 to smoothly enter the thermal circulation system through the output pipe 7, thus realizing the reuse of heat energy and improving the overall system's economic efficiency.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bellows connector buffer tank, characterized in that, Includes a support plate (1), on the upper side of the support plate (1) is a spherical buffer tank (3), and on the outer wall of the spherical buffer tank (3) are a bellows connection assembly (5) and a pressure relief assembly (6). The pressure relief assembly (6) includes a pressure relief pipe (61), which is fixedly connected to the outer wall of the spherical buffer tank (3). An abutment ring seat (62) is fixedly installed on the inner side wall of the pressure relief pipe (61). A self-locking electric push rod (65) is provided at the upper inner side of the pressure relief pipe (61). A pressure sensor (610) is fixedly installed on the output end of the self-locking electric push rod (65). A telescopic rod (69) is fixedly installed on the lower side of the pressure sensor (610). A valve plate (66) is fixedly installed on the lower end of the telescopic rod (69). A spring (611) is sleeved on the outer side of the telescopic rod (69). A second sealing ring (67) is fixedly installed on the lower side of the valve plate (66). The second sealing ring (67) abuts against the upper side of the abutment ring seat (62). A plurality of exhaust holes (68) are equidistantly opened on the side wall of the valve plate (66).

2. A corrugated pipe connector buffer tank according to claim 1, characterized in that, The vent (68) extends to the upper side of the valve plate (66), the outer diameter of which is smaller than the inner diameter of the pressure relief pipe (61).

3. A corrugated pipe connector buffer tank according to claim 1, characterized in that, A collar (63) is screwed onto the outer wall of the pressure relief pipe (61), and a number of connecting rods (64) are fixedly connected between the collar (63) and the outer wall of the self-locking electric push rod (65).

4. A corrugated pipe connector buffer tank according to claim 1, characterized in that, The corrugated pipe connection assembly (5) includes a connecting pipe (51) and a high-strength stainless steel corrugated pipe (54). The connecting pipe (51) is fixedly connected to the outer wall of the spherical buffer tank (3). A flange (52) is fixedly installed on the outer end of the connecting pipe (51). A first mating flange (53) and a second mating flange (55) are fixedly connected to both ends of the high-strength stainless steel corrugated pipe (54). The first mating flange (53) is screwed to the flange (52).

5. A corrugated pipe connector buffer tank according to claim 4, characterized in that, The flange (52) is fitted with a first sealing ring (56), and the inner wall of the connecting pipe (51) is fixedly installed with a spiral air inlet (57). The first sealing ring (56) and the second sealing ring (67) are both made of high-temperature resistant rubber.

6. A corrugated pipe connector buffer tank according to claim 1, characterized in that, Several reinforcing rods (10) are fixedly connected to the inner wall of the spherical buffer tank (3).

7. A corrugated pipe connector buffer tank according to claim 1, characterized in that, A pressure gauge (4) is fixedly installed on the outer wall of the spherical buffer tank (3). The detection end of the pressure gauge (4) extends into the interior of the spherical buffer tank (3). An arc groove (2) is fixedly installed on the upper side of the support plate (1). The spherical buffer tank (3) is placed on the upper side of the arc groove (2). A controller (9) is fixedly installed on the upper side of the support plate (1).

8. A corrugated pipe connector buffer tank according to claim 1, characterized in that, The spherical buffer tank (3) is fixedly connected to an output pipe (7) on its right side, and a solenoid valve (8) is fixedly installed on the output pipe (7).

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