Thermal control temperature compensator for power plant

Abstract

The utility model relates to the technical field of temperature compensators, in particular to a thermal control temperature compensator for a power plant, which is characterized in that a thermal insulation mechanism is mounted on a steam pipeline, so that steam passes through the middle of the thermal insulation mechanism, and when the temperature changes drastically, a telescopic pipe is controlled by a driving mechanism to stretch or contract; meanwhile, the telescopic pipe also drives the heat insulation mechanism to stretch or contract, the expansion and contraction degree of the steam pipeline is adjusted, and in the expansion and contraction process, the heat insulation mechanism is guided and limited through the supporting mechanism, so that the practicability of the equipment is improved; comprising a thermal insulation mechanism; the device further comprises a compensation mechanism and a supporting mechanism, the compensation mechanism is installed on the thermal insulation mechanism and carries out expansion and shrinkage adjustment according to temperature changes, and the supporting mechanism is installed on the thermal insulation mechanism and carries out supporting and limiting on the compensation mechanism and the thermal insulation mechanism. The compensation mechanism comprises a driving mechanism and a telescopic pipe, the telescopic pipe is installed in the thermal insulation mechanism, and the driving mechanism is installed on the thermal insulation mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of temperature compensator, in particular to a power plant thermal control temperature compensator. BACKGROUND

[0002] The working principle of temperature compensator is mainly based on the thermal expansion and contraction characteristics of materials to ensure the normal use of the pipeline, but the existing temperature compensator such as the temperature compensator for clamping and pressing type pipeline system disclosed in the invention patent with announcement number CN114151634B and the temperature compensator for clamping and pressing type connecting pipeline disclosed in the utility model patent with announcement number CN213982460U can realize thermal expansion and contraction and adjust the tension of the pipeline.

[0003] But in the use process, it is found that the steam pipeline in the thermal power plant has a sharp temperature change and a large internal pressure, and the existing temperature compensator has a relatively simple structure, so the control precision of the expansion and contraction amount is poor under this working condition, which leads to poor practicability, so there is an urgent need for a power plant thermal control temperature compensator to improve the above problems. INVENTION CONTENTS

[0004] To solve the above technical problems, the utility model provides a power plant thermal control temperature compensator, which installs a temperature insulation mechanism on the steam pipeline, so that the steam passes through the middle of the temperature insulation mechanism, and when the temperature changes sharply, the driving mechanism controls the expansion or contraction of the telescopic pipe, and the telescopic pipe also drives the expansion or contraction of the heat insulation mechanism, adjusts the expansion and contraction degree of the steam pipeline, and in the expansion and contraction process, the support mechanism guides and limits the temperature insulation mechanism, thereby improving the practicability of the equipment.

[0005] The utility model discloses a power plant thermal control temperature compensator, which comprises a temperature insulation mechanism, a compensation mechanism and a support mechanism, the compensation mechanism is installed on the temperature insulation mechanism, and the expansion and contraction adjustment is carried out according to the temperature change, and the support mechanism is installed on the temperature insulation mechanism and supports and limits the compensation mechanism and the temperature insulation mechanism.

[0006] The compensation mechanism comprises a driving mechanism and a telescopic pipe, the telescopic pipe is installed in the temperature insulation mechanism, and the driving mechanism is installed on the temperature insulation mechanism.

[0007] The temperature insulation mechanism is installed on the steam pipeline, so that the steam passes through the middle of the temperature insulation mechanism, and when the temperature changes sharply, the driving mechanism controls the expansion or contraction of the telescopic pipe, and the telescopic pipe also drives the expansion or contraction of the heat insulation mechanism, adjusts the expansion and contraction degree of the steam pipeline, and in the expansion and contraction process, the support mechanism guides and limits the temperature insulation mechanism, thereby improving the practicability of the equipment.

[0008] Preferably, the temperature insulation mechanism comprises two sets of connecting flanges, two sets of first high-temperature-resistant sleeves, two sets of second high-temperature-resistant sleeves and a conveying pipe, the two sets of first high-temperature-resistant sleeves and the two sets of second high-temperature-resistant sleeves are respectively installed on the two sets of connecting flanges, the two sets of first high-temperature-resistant sleeves are in sliding connection, the two sets of second high-temperature-resistant sleeves are in sliding connection, two ends of the conveying pipe are respectively installed on the two sets of connecting flanges, and the conveying pipe is located in the two sets of second high-temperature-resistant sleeves, and a temperature sensor is arranged in the conveying pipe; the two sets of connecting flanges are installed on the steam pipeline, steam passes through the conveying pipe, the temperature in the conveying pipe is monitored by the temperature sensor, when the temperature sensor detects a sharp change in temperature, the driving mechanism drives the expansion pipe to expand or contract, the two sets of first high-temperature-resistant sleeves slide relative to each other, the two sets of second high-temperature-resistant sleeves slide relative to each other, and the steam pipeline is compensated, thereby improving the practicability of the equipment.

[0009] Preferably, the driving mechanism comprises an oil storage cylinder, a hydraulic cylinder, a piston, an electric control valve, an oil conveying pipe and an oil inlet valve, the oil storage cylinder is fixedly installed on the outer first high-temperature-resistant sleeve, the hydraulic cylinder is fixedly installed on the oil storage cylinder, the piston is slidingly installed in the oil storage cylinder, one end of the hydraulic cylinder is connected to a side end of the piston, a breathing hole is arranged at a left end of the oil storage cylinder, one end of the oil conveying pipe is installed on the oil storage cylinder through the electric control valve, the other end of the oil conveying pipe is communicated with the inside of the expansion pipe, and the oil inlet valve is installed at the bottom of the oil storage cylinder; the cooling oil is discharged into the oil storage cylinder through the oil inlet valve, the piston slides in the oil storage cylinder through repeated expansion and contraction of the hydraulic cylinder, the electric control valve cooperates with the expansion and contraction of the hydraulic cylinder to discharge the cooling oil into the expansion pipe, and part of the cooling oil is reserved in the oil storage cylinder, when the expansion pipe needs to be expanded, the hydraulic cylinder is expanded to make the piston slide to the right, and the electric control valve is opened to discharge the cooling oil in the oil storage cylinder into the expansion pipe, when the expansion pipe needs to be contracted, the hydraulic cylinder is contracted to make the piston slide to the left to discharge part of the cooling oil in the expansion pipe back to the oil storage cylinder, thereby improving the practicability of the equipment.

[0010] Preferably, the supporting mechanism comprises a plurality of supports, a plurality of screws, a plurality of nuts and a plurality of rollers, the plurality of supports are respectively installed on the two sets of first high-temperature-resistant sleeves, the plurality of screws are respectively threadedly installed on the plurality of supports, the plurality of rollers are respectively rotationally installed on one end of the plurality of screws, and the plurality of nuts are respectively threadedly installed on the plurality of screws; the plurality of rollers are supported on the steam pipeline by rotating the plurality of screws, the plurality of nuts are tightened to respectively limit the plurality of screws, and the plurality of screws cooperate with the plurality of screws and the plurality of rollers to support the temperature insulation mechanism, thereby improving the stability of the equipment.

[0011] Preferably, the end faces of the two sets of connecting flanges are respectively provided with sealing gasket installation grooves; the sealing gasket installation grooves are installed on the end faces of the two sets of connecting flanges, thereby improving the sealing effect of the two sets of connecting flanges.

[0012] Preferably, the inside of the telescopic pipe is provided with a pressure sensor; the pressure sensor detects the pressure greater than the pressure in the telescopic pipe and transmits the detection result to the monitoring room, so that the staff can know the pressure in the telescopic pipe in real time, thereby improving the practicability of the equipment.

[0013] Preferably, the conveying pipe is made of elastic high-temperature-resistant material.

[0014] Compared with the prior art, the beneficial effects of the utility model are that the temperature insulation mechanism is installed on the steam pipeline, steam passes through the temperature insulation mechanism, when the temperature changes sharply, the telescopic pipe is controlled to expand or contract through the driving mechanism, the temperature insulation mechanism is also driven to expand or contract by the telescopic pipe, the expansion and contraction degree of the steam pipeline is adjusted, and the temperature insulation mechanism is guided and limited by the supporting mechanism during the expansion and contraction process, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the first axonometric structure schematic view of the utility model;

[0016] Figure 2 is the second axonometric structure schematic view of the utility model;

[0017] Figure 3 is the front view structure schematic view of the utility model;

[0018] Figure 4 is the front view structure schematic view of the utility model;

[0019] Figure 5 is the A part enlarged structure schematic view in the utility model Figure 4 .

[0020] Markings in the drawings: 1, telescopic pipe; 2, connecting flange; 3, first high-temperature-resistant sleeve; 4, second high-temperature-resistant sleeve; 5, conveying pipe; 6, oil storage cylinder; 7, hydraulic cylinder; 8, piston; 9, electric control valve; 10, oil conveying pipe; 11, oil inlet valve; 12, temperature sensor; 13, support; 14, screw rod; 15, nut; 16, roller; 17, sealing gasket mounting groove. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] EMBODIMENT

[0023] As Figures 1 to 5The utility model discloses a power plant temperature compensation device for heat control, including temperature insulation mechanism, still including compensation mechanism and support mechanism, compensation mechanism installs on temperature insulation mechanism, and according to temperature change, expansion and contraction adjustment are carried out, and support mechanism installs on temperature insulation mechanism, and compensation mechanism and temperature insulation mechanism are supported and limited by temperature insulation mechanism.

[0024] The compensation mechanism includes a driving mechanism and a telescopic pipe 1, and the telescopic pipe 1 is installed in the temperature insulation mechanism, and the driving mechanism is installed on the temperature insulation mechanism.

[0025] The temperature insulation mechanism includes two sets of connecting flanges 2, two sets of first high-temperature-resistant sleeve pipes 3, two sets of second high-temperature-resistant sleeve pipes 4 and a conveying pipe 5, the two sets of first high-temperature-resistant sleeve pipes 3 and the two sets of second high-temperature-resistant sleeve pipes 4 are respectively installed on the two sets of connecting flanges 2, the two sets of first high-temperature-resistant sleeve pipes 3 are in sliding connection, the two sets of second high-temperature-resistant sleeve pipes 4 are in sliding connection, the two ends of the conveying pipe 5 are respectively installed on the two sets of connecting flanges 2, and the conveying pipe 5 is located in the two sets of second high-temperature-resistant sleeve pipes 4, and a temperature sensor 12 is arranged in the conveying pipe 5.

[0026] The driving mechanism includes an oil storage cylinder 6, a hydraulic cylinder 7, a piston 8, an electric control valve 9, an oil conveying pipe 10 and an oil inlet valve 11, the oil storage cylinder 6 is fixedly installed on the first high-temperature-resistant sleeve pipe 3, the hydraulic cylinder 7 is fixedly installed on the oil storage cylinder 6, the piston 8 is slidingly installed in the oil storage cylinder 6, one end of the hydraulic cylinder 7 is connected with a side end of the piston 8, a breathing hole is arranged at the left end of the oil storage cylinder 6, one end of the oil conveying pipe 10 is installed on the oil storage cylinder 6 through the electric control valve 9, the other end of the oil conveying pipe 10 is communicated with the inside of the telescopic pipe 1, and the oil inlet valve 11 is installed at the bottom of the oil storage cylinder 6.

[0027] The support mechanism includes a plurality of supports 13, a plurality of screw rods 14, a plurality of nuts 15 and a plurality of rollers 16, the plurality of supports 13 are respectively installed on the two sets of first high-temperature-resistant sleeve pipes 3, the plurality of screw rods 14 are respectively threadedly installed on the plurality of supports 13, the plurality of rollers 16 are respectively rotationally installed on one end of the plurality of screw rods 14, and the plurality of nuts 15 are respectively threadedly installed on the plurality of screw rods 14.

[0028] Sealing pad mounting grooves 17 are arranged on the end faces of the two sets of connecting flanges 2.

[0029] A pressure sensor is arranged in the telescopic pipe 1.

[0030] The conveying pipe 5 is made of elastic high-temperature-resistant material.

[0031] Two groups of connecting flanges 2 are installed on the steam pipeline, steam passes through the conveying pipe 5, the temperature in the conveying pipe 5 is monitored by the temperature sensor 12, when the temperature sensor 12 detects that the temperature changes sharply, the hydraulic cylinder 7 is extended, the piston 8 slides to the right, and the electric control valve 9 is opened, the cooling oil in the oil storage cylinder 6 is discharged into the telescopic pipe 1, when the telescopic pipe 1 needs to be contracted, the hydraulic cylinder 7 is contracted, the piston 8 slides to the left, part of the cooling oil in the telescopic pipe 1 is discharged back to the oil storage cylinder 6, and a plurality of screw rods 14, a plurality of screw rods 14 and a plurality of rollers 16 support the temperature isolation mechanism, so that the control precision of the expansion and contraction amount is improved.

[0032] The hydraulic cylinder 7, the electric control valve 9 and the temperature sensor 12 of the power plant heat control temperature compensator are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0033] The preferred embodiments of the utility model are described above, and it should be pointed out that for ordinary technical personnel in the technical field, a plurality of improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A thermal control temperature compensator for power plants, comprising a thermal insulation mechanism; characterized in that, It also includes a compensation mechanism and a support mechanism. The compensation mechanism is installed on the insulation mechanism and expands and contracts according to temperature changes. The support mechanism is installed on the insulation mechanism and supports and limits the compensation mechanism and the insulation mechanism. The compensation mechanism includes a drive mechanism and a telescopic tube (1). The telescopic tube (1) is installed in the heat insulation mechanism, and the drive mechanism is installed on the heat insulation mechanism.

2. The power plant thermal control temperature compensator as described in claim 1, characterized in that, The heat insulation mechanism includes two sets of connecting flanges (2), two sets of first high-temperature resistant sleeves (3), two sets of second high-temperature resistant sleeves (4), and a conveying pipe (5). The two sets of first high-temperature resistant sleeves (3) and the two sets of second high-temperature resistant sleeves (4) are respectively installed on the two sets of connecting flanges (2), and the two sets of first high-temperature resistant sleeves (3) are slidably connected, and the two sets of second high-temperature resistant sleeves (4) are slidably connected. The two ends of the conveying pipe (5) are respectively installed on the two sets of connecting flanges (2), and the conveying pipe (5) is located in the two sets of second high-temperature resistant sleeves (4). A temperature sensor (12) is installed inside the conveying pipe (5).

3. A power plant thermal control temperature compensator as described in claim 2, characterized in that, The drive mechanism includes an oil reservoir (6), a hydraulic cylinder (7), a piston (8), an electric control valve (9), an oil delivery pipe (10), and an oil inlet valve (11). The oil reservoir (6) is fixedly installed on the outer first high-temperature resistant sleeve (3). The hydraulic cylinder (7) is fixedly installed on the oil reservoir (6). The piston (8) is slidably installed in the oil reservoir (6). One end of the hydraulic cylinder (7) is connected to the side end of the piston (8). A vent hole is provided on the left end of the oil reservoir (6). One end of the oil delivery pipe (10) is installed on the oil reservoir (6) through the electric control valve (9). The other end of the oil delivery pipe (10) is connected to the inside of the telescopic pipe (1). The oil inlet valve (11) is installed at the bottom of the oil reservoir (6).

4. A power plant thermal control temperature compensator as described in claim 2, characterized in that, The support mechanism includes multiple sets of brackets (13), multiple sets of screws (14), multiple sets of nuts (15), and multiple sets of rollers (16). The multiple sets of brackets (13) are respectively installed on two sets of first high-temperature resistant sleeves (3). The multiple sets of screws (14) are respectively threaded onto the multiple sets of brackets (13). The multiple sets of rollers (16) are respectively rotatably installed on one end of the multiple sets of screws (14). The multiple sets of nuts (15) are respectively threaded onto the multiple sets of screws (14).

5. A power plant thermal control temperature compensator as described in claim 2, characterized in that, Both sets of connecting flanges (2) are provided with sealing gasket mounting grooves (17) on their end faces.

6. A power plant thermal control temperature compensator as described in claim 1, characterized in that, A pressure sensor is installed inside the telescopic tube (1).

7. A power plant thermal control temperature compensator as described in claim 2, characterized in that, The delivery pipe (5) is made of elastic high-temperature resistant material.

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