CN211527850U - Coke oven ascending pipe heat exchanger test device - Google Patents
Coke oven ascending pipe heat exchanger test device Download PDFInfo
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- CN211527850U CN211527850U CN202020327030.4U CN202020327030U CN211527850U CN 211527850 U CN211527850 U CN 211527850U CN 202020327030 U CN202020327030 U CN 202020327030U CN 211527850 U CN211527850 U CN 211527850U
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Abstract
The utility model belongs to the technical field of the coke oven heat transfer, especially, relate to a coke oven tedge heat exchanger test device. The water pump is connected to the water inlet end at the bottom of the steam drum through the matching of a connecting pipeline and the valve body; the water outlet end of the bottom of the steam drum is connected with the inlet ends of the four groups of saturated steam heat exchangers through a forced circulation pump; the outlet end of the saturated steam heat exchanger is connected with the upper end backflow port of the steam drum; and a steam outlet at the upper end of the steam drum is connected with the hot steam heat exchanger, the upper end of the superheated steam heat exchanger is connected with a second diffusing pipe, and the upper end of the steam drum is connected with a first diffusing pipe. The heat exchanger structure form is optimized from the angle of engineering test, and the problems of old technology and low heat exchange efficiency of the existing coke oven ascending pipe heat exchanger are solved.
Description
Technical Field
The utility model belongs to the technical field of the coke oven heat transfer, especially, relate to a coke oven tedge heat exchanger test device.
Background
At present, with the high importance of a coking plant on resource recycling, the waste heat recovery of the raw gas is one of the main ways for reducing the energy consumption of the coke oven, and the existing process is to make the raw gas with high temperature of 650-850 ℃ escaping from a coking chamber enter a gas collecting pipe through an ascending pipe heat exchanger to recover the waste heat. At present, the heat exchanger of the ascending pipe mainly comprises a water jacket type heat exchanger of the ascending pipe and a coil type heat exchanger of the ascending pipe, which have respective performance defects, and meanwhile, the technical innovation of the heat exchanger of the ascending pipe is slow, so that the popularization difficulty of the heat exchanger of the ascending pipe is further increased. The application provides a coke oven ascending pipe heat exchanger test device for better optimizing the structural form of a heat exchanger, disclosing the reason of low heat exchange efficiency of the heat exchanger and scientifically guiding the structural improvement direction of the heat exchanger to solve the problems of old technology and low heat exchange efficiency of the existing coke oven ascending pipe heat exchanger.
SUMMERY OF THE UTILITY MODEL
Aiming at solving the problems of the defects and the shortcomings of the prior art; the utility model aims to provide a simple structure, reasonable in design, convenient to use's coke oven tedge heat exchanger test device, it is from the experimental angle of engineering, optimizes heat exchanger structural style better from the research, has solved the old, the low problem of heat exchange efficiency of current coke oven tedge heat exchanger technique.
In order to achieve the above object, the utility model adopts the following technical scheme: the system comprises a water pump, a steam drum, a forced circulation pump, a saturated steam heat exchanger, a superheated steam heat exchanger, a first diffusion pipe and a second diffusion pipe; the water pump is connected to the water inlet end at the bottom of the steam drum through the matching of a connecting pipeline and the valve body; the water outlet end of the bottom of the steam drum is connected with the inlet ends of the four groups of saturated steam heat exchangers through a forced circulation pump; the outlet end of the saturated steam heat exchanger is connected with the upper end backflow port of the steam drum; the upper end of the superheated steam heat exchanger is connected with a second diffusion pipe; the upper end of the steam pocket is connected with a first diffusion pipe.
Preferably, the water pumps are in a group in pairs and are connected with the variable frequency motor.
Preferably, the connecting pipe between the water pump, the steam drum, the forced circulation pump, the saturated steam heat exchanger, the superheated steam heat exchanger, the first diffusing pipe and the second diffusing pipe is connected with a temperature sensor, a pressure sensor and a flow sensor.
Preferably, an adjustable orifice plate and a flow meter are arranged at the water inlet of the saturated steam heat exchanger.
Preferably, the forced circulation pumps are in a group two by two and are connected with the variable frequency motor.
After the structure is adopted, the utility model discloses beneficial effect does:
1. the testing device can respectively measure and calculate the steam content of each saturated steam heat exchanger according to the flow velocity and the pipeline area measured by the inlet flow meter and the outlet flow meter of the four saturated steam heat exchangers, so that the actual heat exchange quantity of each saturated steam heat exchanger is calculated.
2. And calculating the enthalpy value of saturated steam at the inlet according to the pressure gauge, the thermometer and the flowmeter at the inlet of the superheated steam heat exchanger, and calculating the enthalpy value of the superheated steam through the temperature measuring device and the flowmeter at the outlet of the superheated steam heat exchanger, thereby calculating the actual heat exchange capacity of the superheated steam heat exchanger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail by the following specific embodiments and the accompanying drawings.
FIG. 1 is a system diagram of a testing apparatus of the present invention;
description of reference numerals: the system comprises a water pump 1, a steam drum 2, a forced circulation pump 3, a saturated steam heat exchanger 4, a superheated steam heat exchanger 5, a first diffusion pipe 6 and a second diffusion pipe 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: the system comprises a water pump 1, a steam drum 2, a forced circulation pump 3, a saturated steam heat exchanger 4, a superheated steam heat exchanger 5, a first diffusion pipe 6 and a second diffusion pipe 7; the water supply pump 1 pressurizes water supplied by an existing circulating water supply main pipe or desalted water of a plant network and then injects the pressurized water into the steam drum 2, the forced circulation water pump 3 injects saturated water from the steam drum 2 into the saturated steam heat exchanger 4 according to set pressure and flow, the saturated water is changed into a steam-water mixture to flow back to the steam drum 2 after the saturated steam heat exchanger 4 absorbs heat of raw gas, the steam drum 2 performs steam-water separation on the entered steam-water mixture, the saturated water enters the forced circulation water pump 3, the saturated steam enters the superheated steam heat exchanger 5 along a pipeline and is changed into superheated steam after absorbing heat of the raw gas, and the superheated steam is discharged through the second diffusion pipe 7 after passing through a temperature and flow measuring device.
Wherein, two liang of water pumps 1 be a set of, one is used for one and is equipped with, and adopt inverter motor, can guarantee system safety and stability nature, can adapt to the pressure and the flow of different experimental operating mode demands simultaneously.
Furthermore, the steam drum 2 adopts a liquid level automatic control device, and the water supply flow of the water supply pump 1 is controlled according to the real-time liquid level measured by the liquid level measuring instrument, so that the liquid level of the steam drum 2 is always in a normal range.
Further, forced circulation water pump 3 one with one spare, and adopt inverter motor, can guarantee system safety and stability, can adapt to the pressure and the flow of different experimental operating mode demands simultaneously.
Furthermore, the four saturated steam heat exchangers 4 conform to the actual cycle period and the coke discharging rule of coke oven coking, and the total saturated steam quantity produced by the four saturated steam heat exchangers 4 can be ensured to be stable; an adjustable throttle orifice plate and a flowmeter are arranged at the water inlet of each saturated steam heat exchanger 4, and the balance of the water inlet flow of each saturated steam heat exchanger 4 is ensured by adjusting the throttle orifice plate.
Furthermore, one superheated steam heat exchanger 5 is arranged, the amount of saturated steam produced by the four saturated steam heat exchangers 4 can be well matched, the heat of raw coke oven gas can be well utilized, and superheated steam with the temperature of more than 400 ℃ required by customers can be produced.
Furthermore, silencers are additionally arranged on the diffusing pipe 6 and the diffusing pipe II 7, so that the steam releasing noise is guaranteed to be within an allowable range and is harmless to the environment.
The test procedure of this embodiment is as follows:
s1: and opening a diffusing pipe 6 of the steam pocket 2, opening the water feeding pump 1, and adjusting the liquid level to a proper range according to the measurement data of the liquid level measuring instrument of the steam pocket 2.
S2: and (3) opening the forced circulation water pump 3, pumping water in the steam pocket into four saturated steam heat exchangers 4, and enabling the steam-water mixture to enter the steam pocket 2 for steam-water separation to form a circulation loop.
S3: the blow-off pipe 6 of the steam drum 2 is closed and the blow-off pipe 7 of the superheated steam heat exchanger 5 is opened.
After the structure is adopted, the utility model discloses beneficial effect does:
1. the testing device can respectively measure and calculate the steam content of each saturated steam heat exchanger according to the flow velocity and the pipeline area measured by the inlet flow meter and the outlet flow meter of the four saturated steam heat exchangers, so that the actual heat exchange quantity of each saturated steam heat exchanger is calculated.
2. And calculating the enthalpy value of saturated steam at the inlet according to the pressure gauge and the flowmeter at the inlet of the superheated steam heat exchanger, and calculating the enthalpy value of the superheated steam through the temperature measuring device and the flowmeter at the outlet of the superheated steam heat exchanger, thereby calculating the actual heat exchange capacity of the superheated steam heat exchanger.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A coke oven ascending pipe heat exchanger test device is characterized in that: the system comprises a water pump (1), a steam drum (2), a forced circulation pump (3), a saturated steam heat exchanger (4), a superheated steam heat exchanger (5), a first diffusion pipe (6) and a second diffusion pipe (7); the water pump (1) is connected to the water inlet end of the bottom of the steam drum (2) through the matching of a connecting pipeline and the valve body; the water outlet end at the bottom of the steam drum (2) is connected with the inlet ends of the four groups of saturated steam heat exchangers (4) through a forced circulation pump (3); the outlet end of the saturated steam heat exchanger (4) is connected with the upper end backflow port of the steam drum (2); a steam outlet at the upper end of the steam drum (2) is connected with the hot steam heat exchanger (5), and the upper end of the superheated steam heat exchanger (5) is connected with a second diffusion pipe (7); the upper end of the steam pocket (2) is connected with a first diffusion pipe (6).
2. The coke oven riser heat exchanger testing device of claim 1, wherein: the water pumps (1) are in a group in pairs and are connected with the variable frequency motor.
3. The coke oven riser heat exchanger testing device of claim 1, wherein: and temperature, pressure and flow sensors are connected on connecting pipes among the water pump (1), the steam drum (2), the forced circulation pump (3), the saturated steam heat exchanger (4), the superheated steam heat exchanger (5), the first diffusing pipe (6) and the second diffusing pipe (7).
4. The coke oven riser heat exchanger testing device of claim 1, wherein: an adjustable throttle orifice plate and a flowmeter are arranged at a water inlet of the saturated steam heat exchanger (4).
5. The coke oven riser heat exchanger testing device of claim 1, wherein: the forced circulation pumps (3) are in a group in pairs and are connected with the variable frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327030.4U CN211527850U (en) | 2020-03-16 | 2020-03-16 | Coke oven ascending pipe heat exchanger test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327030.4U CN211527850U (en) | 2020-03-16 | 2020-03-16 | Coke oven ascending pipe heat exchanger test device |
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| Publication Number | Publication Date |
|---|---|
| CN211527850U true CN211527850U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020327030.4U Active CN211527850U (en) | 2020-03-16 | 2020-03-16 | Coke oven ascending pipe heat exchanger test device |
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| CN (1) | CN211527850U (en) |
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2020
- 2020-03-16 CN CN202020327030.4U patent/CN211527850U/en active Active
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