CN213235146U

CN213235146U - Steam turbine drainage heat recovery device of power plant

Info

Publication number: CN213235146U
Application number: CN202022346682.5U
Authority: CN
Inventors: 李长松; 孟令超; 孙智伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-05-18
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a power plant steam turbine drainage heat recovery device, which comprises a cold water tank, a filter frame, a fixing mechanism and a heat pipe, wherein a cover plate with a rectangular plate-shaped structure is fixed on the top end of the cold water tank through bolts, the heat pipe with a serpentine structure is arranged inside the cold water tank, the filter frame is fixed on the top end of the cover plate through bolts, and a polyvinyl chloride filter screen, an active carbon filter screen and a quartz sand filter screen are sequentially fixed on the inner side wall of the filter frame through screws from top to bottom; the inlet end of heat pipe extends to the cold water storage cistern left side, and inserts in the port of heat pipe inlet end and have the output tube, the heat pipe is given vent to anger the end and is extended to inside the filter frame, the heat pipe periphery is provided with multiunit fixed establishment, fixed establishment includes first splint, second splint, screw thread post and has the lock bolt of nut. This power plant's steam turbine drainage heat recovery unit, simple structure has fine feature of environmental protection.

Description

Steam turbine drainage heat recovery device of power plant

Technical Field

The utility model belongs to the technical field of recovery unit, concretely relates to hydrophobic heat recovery unit of steam turbine of power plant.

Background

The steam turbine is called a steam turbine for short, also called a steam turbine engine, and is a rotary steam power device, high-temperature high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates, the steam turbine converts internal energy into mechanical energy to drive a generator coaxial with the turbine to rotate, and magnetic induction lines are cut to generate electric energy used in life of people, and the steam turbine is main equipment of a modern thermal power plant and is also used for metallurgical industry, chemical industry and ship power devices;

at present, thermal power plants at home and abroad are provided with heat recovery devices for recovering heat surplus in water vapor, but the heat recovery rate of the traditional heat recovery devices is lower and the recovery efficiency is low.

Therefore, in order to meet the current situation, the design and production of the drainage heat recovery device of the power plant steam turbine are urgently needed to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power plant's steam turbine drainage heat recovery unit to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a power plant steam turbine drainage heat recovery device comprises a cold water tank, a filter frame, a fixing mechanism and a heat conduction pipe, wherein a cover plate with a rectangular plate-shaped structure is fixed at the top end of the cold water tank through a bolt, the heat conduction pipe with a snake-shaped structure is arranged inside the cold water tank, the filter frame is fixed at the top end of the cover plate through a bolt, and a polyvinyl chloride filter screen, an active carbon filter screen and a quartz sand filter screen are sequentially fixed on the inner side wall of the filter frame through screws from top to bottom;

the inlet end of heat pipe extends to the cold water storage cistern left side, and inserts in the port of heat pipe inlet end and have the output tube, the heat pipe is given vent to anger the end and is extended to inside the filter frame, the heat pipe periphery is provided with multiunit fixed establishment, fixed establishment includes first splint, second splint, screw thread post and has the lock bolt of nut.

Preferably, the delivery pipe external diameter and the internal diameter phase-match of heat pipe, output pipe and heat pipe periphery all weld solid fixed ring, two sets of through two sets of fixing bolt fixed connection that have the nut between the solid fixed ring, still be provided with the sealing washer between output pipe and the heat pipe.

Preferably, first splint and second splint set up to the V-arrangement structure of mutually opposing, first splint and second splint symmetry centre gripping are in the heat pipe periphery, and first splint and second splint are through two sets of locking bolt fixed connection that have the nut, the fixed welding of second splint one end is kept away from to first splint has the screw thread post, first splint pass through the screw thread hole threaded connection that screw thread post and a set of vertical outer wall of cold water storage cistern were seted up.

Preferably, the right side wall of the cold water tank is connected with a water outlet pipe of the valve, the top end of the cover plate is connected with a water inlet pipe with the valve, the top end of the filter frame is connected with a gas outlet pipe with the valve, and the right side wall of the filter frame is connected with a liquid outlet pipe with the valve.

Preferably, a temperature sensor is fixedly mounted on the right side wall of the cold water tank.

The utility model discloses a technological effect and advantage: according to the device for recovering the drainage heat of the steam turbine of the power plant, the snake-shaped heat conduction pipe is fixed in the cold water tank through the multiple groups of fixing mechanisms, so that the contact area of the heat conduction pipe and the cold water is increased, and the heat transferred by steam is fully absorbed; the gas discharged from the heat conduction pipe is filtered through the quartz sand filter screen, the activated carbon filter screen and the polyvinyl chloride filter screen, so that the integral environmental protection performance is improved; the heat output pipe is inserted into the port of the inlet end of the heat conduction pipe, the heat output pipe is fixedly connected with the port of the inlet end of the heat conduction pipe through two groups of fixing rings through two groups of fixing bolts with nuts, and a sealing ring is arranged between the output pipe and the heat conduction pipe, so that the heat leakage caused by overlarge pressure intensity is avoided; this power plant's steam turbine drainage heat recovery unit, simple structure has fine feature of environmental protection.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic structural view of the fixing mechanism of the present invention;

fig. 3 is an enlarged view of the structure a in fig. 1 according to the present invention.

In the figure: 1 cold water tank, 2 filter frames, 3 fixed establishment, 31 first splint, 32 second splint, 33 screw thread post, 34 locking bolt, 4 heat pipes, 5 apron, 6 temperature-sensing ware, 7 quartz sand filter screens, 8 active carbon filter screens, 9 polyvinyl chloride filter screens, 10 output tubes, 11 solid fixed ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a power plant steam turbine drainage heat recovery device as shown in figures 1-3, which comprises a cold water tank 1, a filter frame 2, a fixing mechanism 3 and a heat pipe 4, wherein a cover plate 5 with a rectangular platy structure is fixed on the top end of the cold water tank 1 through bolts, the heat pipe 4 with a serpentine structure is arranged inside the cold water tank 1, the filter frame 2 is fixed on the top end of the cover plate 5 through bolts, and a polyvinyl chloride filter screen 9, an active carbon filter screen 8 and a quartz sand filter screen 7 are sequentially fixed on the side wall inside the filter frame 2 from top to bottom through bolts;

the inlet end of heat pipe 4 extends to cold water tank 1 left side, and inserts in the port of the inlet end of heat pipe 4 and have output tube 10, heat pipe 4 gives vent to anger the end and extends to inside filtering frame 2, heat pipe 4 periphery is provided with multiunit fixed establishment 3, fixed establishment 3 includes first splint 31, second splint 32, screw thread post 33 and has the lock bolt 34 of nut.

Specifically, output tube 10 external diameter and 4 internal diameter phase-matchs of heat pipe, output tube 10 and the equal welding of 4 peripheries of heat pipe have solid fixed ring 11, and are two sets of gu fixed ring 11 is connected through two sets of fixing bolt fixed connection that have the nut between the fixed ring 11, still be provided with the sealing washer between output tube 10 and the heat pipe 4.

Specifically, first splint 31 and second splint 32 set up to the V-arrangement structure of mutually opposing, first splint 31 and second splint 32 symmetry centre gripping are in heat pipe 4 periphery, and first splint 31 and second splint 32 have the lock bolt 34 fixed connection of nut through two sets of, first splint 31 keeps away from the fixed welding of second splint 32 one end and has threaded post 33, screw hole threaded connection that first splint 31 was seted up through threaded post 33 and 1 a set of vertical outer wall of cold water tank utilizes two sets of drive to have the lock bolt 34 of nut to fix first splint 31 and second splint 32 in heat pipe 4 periphery to screw hole threaded connection seted up through threaded post 33 and 1 inner wall of cold water tank has guaranteed the stable installation of heat pipe 4.

Specifically, 1 right side wall of cold water storage cistern links the outlet pipe of band valve, 5 tops of apron link the inlet tube that the band has the valve, 2 tops of filter frame link the outlet duct that the band has the valve, 2 right side walls of filter frame link the drain pipe that the band has the valve.

Specifically, a temperature sensor 6 is fixedly mounted on the right side wall of the cold water tank 1, so that the temperature of water in the cold water tank 1 can be conveniently detected.

When the device is used, firstly, a proper amount of cold water is added into the cold water tank 1 through the water inlet pipe, then the heat output pipe 10 is inserted into the port of the inlet end of the heat conducting pipe 4, and is fixedly connected by two groups of fixing bolts with nuts by two groups of fixing rings 11, the heat enters the cold water tank 1 through the heat conducting pipe 4, the cold water is fully contacted with the heat conducting pipe 4, and absorbs the heat transferred by the steam, and then discharges the steam into the filter frame 2 through the outlet end of the heat conduction pipe 4, the gas discharged from the heat conducting pipe 4 is filtered by a quartz sand filter screen 7, an active carbon filter screen 8 and a polyvinyl chloride filter screen 9, and finally discharged by an air outlet pipe, then the user knows the temperature of cold water storage cistern 1 water according to temperature-sensing ware 6, discharges the water in cold water storage cistern 1 through the outlet pipe at last, discharges through the water of drain pipe with filtering frame 2 condensation simultaneously.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hydrophobic heat recovery unit of steam turbine of power plant, includes cold water storage cistern (1), crosses filter frame (2), fixed establishment (3) and heat pipe (4), its characterized in that: a cover plate (5) with a rectangular plate-shaped structure is fixed on the top end of the cold water tank (1) through a bolt, a heat conduction pipe (4) with a snake-shaped structure is arranged in the cold water tank (1), a filter frame (2) is fixed on the top end of the cover plate (5) through a bolt, and a polyvinyl chloride filter screen (9), an active carbon filter screen (8) and a quartz sand filter screen (7) are sequentially fixed on the inner side wall of the filter frame (2) from top to bottom through screws;

the inlet end of heat pipe (4) extends to cold water storage cistern (1) left side, and inserts in the port of heat pipe (4) inlet end output tube (10), heat pipe (4) give vent to anger the end and extend to inside filter frame (2), heat pipe (4) periphery is provided with multiunit fixed establishment (3), fixed establishment (3) include first splint (31), second splint (32), screw thread post (33) and have lock bolt (34) of nut.

2. The power plant steam turbine drainage heat recovery device of claim 1, wherein: output tube (10) external diameter and heat pipe (4) internal diameter phase-match, output tube (10) and heat pipe (4) periphery all weld solid fixed ring (11), and are two sets of gu have the fixing bolt fixed connection of nut through two sets of between fixed ring (11), still be provided with the sealing washer between output tube (10) and heat pipe (4).

3. The power plant steam turbine drainage heat recovery device of claim 1, wherein: first splint (31) and second splint (32) set up to the V-arrangement structure of mutually opposing, first splint (31) and second splint (32) symmetry centre gripping are in heat pipe (4) periphery, and first splint (31) and second splint (32) have lock bolt (34) fixed connection of nut through two sets of, second splint (32) one end fixed welding is kept away from in first splint (31) has threaded post (33), threaded hole threaded connection that first splint (31) were seted up through threaded post (33) and a set of vertical outer wall of cold water storage cistern (1).

4. The power plant steam turbine drainage heat recovery device of claim 1, wherein: the cold water tank (1) right side wall is connected with the outlet pipe of the valve, the cover plate (5) top is connected with the inlet pipe with the valve, the filter frame (2) top is connected with the outlet pipe with the valve, and the filter frame (2) right side wall is connected with the outlet pipe with the valve.

5. The power plant steam turbine drainage heat recovery device of claim 1, wherein: and a temperature sensor (6) is fixedly arranged on the right side wall of the cold water tank (1).