CN-224229976-U - Constant temperature regulator for waste heat boiler drum wall

Abstract

The utility model relates to the technical field of boilers, in particular to a constant temperature regulating device for a steam drum wall of an exhaust-heat boiler, which comprises a boiler body, wherein the bottom end of the boiler body is fixedly connected with the top end of a connecting block, the connecting block is arranged in a base, a second temperature sensor is arranged in the connecting block, mounting grooves are formed in the top end of the base, two mounting grooves are formed in the mounting grooves and are used for mounting and inserting sliding strips, the sliding strips are fixedly connected with the bottom end of a second mounting plate, the second mounting plate is provided with two sliding strips, a first mounting plate is buckled and mounted at the top end of the boiler body, and a first heating electric plate is arranged on the inner side of the first mounting plate. The device adopts the synchronous monitoring structure of the first temperature sensor at the top and the second temperature sensor at the bottom, and the temperature difference of the upper wall and the lower wall of the steam drum is acquired in real time, and the differential power output of the first heating electric plate and the second heating electric plate is dynamically regulated by combining a PLC (programmable logic controller) so as to reduce the temperature difference of the upper end and the lower end of the wall of the steam drum and keep constant temperature.

Inventors

• ZHANG TAN
• LIU QIAN

Assignees

• 平湖德润环保节能科技有限责任公司

Dates

Publication Date

20260512

Application Date

20250515

Claims (5)

1. 1. The utility model provides a waste heat boiler steam drum wall constant temperature regulating device, includes boiler body (3), its characterized in that, the bottom of boiler body (3) and the top fixed connection of connecting block (6), the inside of base (9) is located to connecting block (6), the internally mounted of connecting block (6) has second temperature sensor (7), the sensing end of second temperature sensor (7) contacts with the bottom of boiler body (3), mounting groove (10) have been seted up on the top of base (9), mounting groove (10) are equipped with two, two mounting groove (10) are used for supplying draw runner (5) installation to insert, draw runner (5) and the bottom fixed connection of second mounting panel (4), second mounting panel (4) are equipped with two, second mounting panel (4) are the arc structure setting, the interior one side of second mounting panel (4) is equipped with second heating electric board (11).
2. 2. The waste heat boiler steam drum wall constant temperature regulating device according to claim 1, wherein a first mounting plate (1) is buckled and mounted at the top end of the boiler body (3), a first heating electric plate (14) is arranged on the inner side of the first mounting plate (1), a first temperature sensor (2) is arranged at the inner top of the first mounting plate (1), and the sensing end of the first temperature sensor (2) is in contact with the top end of the boiler body (3).
3. 3. The waste heat boiler steam drum wall constant temperature regulating device according to claim 2, wherein the outer sides of the first mounting plate (1) and the second mounting plate (4) are fixedly adhered with heat preservation layers (15).
4. 4. The exhaust-heat boiler steam drum wall constant temperature regulating device according to claim 1, wherein the top end of the second mounting plate (4) is provided with a slot (12), the slot (12) is used for mounting and inserting an inserting block (13), the inserting block (13) is provided with two inserting blocks, and the two inserting blocks (13) are respectively and fixedly connected to two ends of the first mounting plate (1).
5. 5. The waste heat boiler drum wall constant temperature regulating device according to claim 1, characterized in that a bolt (8) is installed on the outer side of the second mounting plate (4), and one end of the bolt (8) penetrates through the heat insulation layer (15) and the second mounting plate (4) to be screwed into the insert block (13).

Description

Constant temperature regulator for waste heat boiler drum wall Technical Field The utility model relates to the technical field of boilers, in particular to a constant temperature adjusting device for a steam drum wall of a waste heat boiler. Background The steam drum is the heaviest and expensive thick-wall pressure-bearing member in the boiler, in the start-stop process of the boiler, there is certain difference in temperature between upper and lower walls and inner and outer walls of the steam drum, thermal stress is produced, especially the high-parameter boiler steam drum wall is very thick, the lower half of the steam drum is contacted with boiler water, the boiler water convects heat exchange, the temperature drops faster, so in the cooling process of the blowing out, the upper half wall temperature of the steam drum is higher than the lower half wall temperature, the temperature difference is formed, the safety of the steam drum is threatened if the steam drum wall temperature difference is seriously large, the bending deformation of the steam drum is easy to cause influence on the safe operation and service life of the steam drum, so after the boiler is flameout, the effective control of the steam drum wall temperature difference is very important, and therefore, the waste heat boiler steam drum wall constant temperature regulating device is provided. Disclosure of utility model Aiming at the problems in the prior art, the utility model provides a constant temperature adjusting device for a steam drum wall of a waste heat boiler. The technical scheme includes that the constant temperature adjusting device for the steam drum wall of the waste heat boiler comprises a boiler body, wherein the bottom end of the boiler body is fixedly connected with the top end of a connecting block, the connecting block is arranged in a base, a second temperature sensor is arranged in the connecting block, the sensing end of the second temperature sensor is in contact with the bottom end of the boiler body, two mounting grooves are formed in the top end of the base and are used for mounting and inserting sliding strips, the sliding strips are fixedly connected with the bottom end of a second mounting plate, the second mounting plate is provided with two mounting plates, the second mounting plate is in an arc-shaped structure, and a second heating electric plate is arranged on one inner side of the second mounting plate. Through adopting the technical scheme, the device adopts a synchronous monitoring structure of the top first temperature sensor and the bottom second temperature sensor, and dynamically adjusts the differential power output of the first heating panel and the second heating panel by combining a PLC (programmable logic controller) by collecting the temperature difference of the upper wall and the lower wall of the steam drum in real time, when the temperature of the upper half wall of the steam drum is detected to be higher than that of the lower half wall (such as a furnace shutdown cooling stage), the bottom heating intensity is preferentially improved, the temperature loss of the lower half wall is accurately compensated, and otherwise, the top temperature control is enhanced to form a closed loop feedback adjusting system. Adopt split type mounting panel and slide rail grafting technique, the second mounting panel realizes the horizontal position fine setting through the guide rail cooperation of draw runner and base mounting groove, ensures that arc heating surface and drum outer wall closely laminate. Meanwhile, the first mounting plate at the top adopts a modular assembly mode of insert block-slot positioning and bolt locking, and is matched with a detachable heat preservation layer design, so that the whole device can be quickly assembled, disassembled and maintained. Specifically, the first mounting panel is installed to the top lock of boiler body, the inboard of first mounting panel is equipped with first heating board, the interior top of first mounting panel is equipped with first temperature sensor, first temperature sensor's sensing end contacts with the top of boiler body. Through adopting above-mentioned technical scheme, quick assembly disassembly is realized through buckling mechanism to first mounting panel, and its inboard first heating electric board forms the heating surface with the boiler top, and first temperature sensor adopts contact installation direct monitoring boiler top wall temperature, forms the two-point temperature sampling with bottom second sensor. Specifically, the outside of first mounting panel and second mounting panel is all fixed to be pasted and is had the heat preservation. Through adopting above-mentioned technical scheme, the heat preservation is pasted respectively in the outside of first mounting panel and second mounting panel through the polymer binder, forms radial thermal resistance barrier at first heating electricity board and second heating electri