CN216954118U - Municipal steam condensate water recycling and utilizing system - Google Patents

Municipal steam condensate water recycling and utilizing system Download PDF

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Publication number
CN216954118U
CN216954118U CN202220520197.1U CN202220520197U CN216954118U CN 216954118 U CN216954118 U CN 216954118U CN 202220520197 U CN202220520197 U CN 202220520197U CN 216954118 U CN216954118 U CN 216954118U
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temperature
condensed water
steam
heat exchanger
water
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余红海
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Anhui Provincial Architectural Design And Research Institute Co ltd
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Anhui Provincial Architectural Design And Research Institute Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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Abstract

The utility model provides a municipal steam condensate recycling and utilizing system, which comprises a steam pipeline, a pressure-reducing and temperature-reducing valve group, a steam distributing cylinder, a heat exchange unit, a high-temperature condensate water tank, a low-temperature condensate water tank and a positive displacement heat exchanger; the municipal steam is decompressed through the decompression and temperature reduction valve group and then enters the steam distributing cylinder; the steam distributing cylinder conveys steam into the heat exchange unit twice through different branches; high-temperature condensed water of the steam distributing cylinder and the heat exchange unit enters the high-temperature condensed water tank through the back pressure of the high-temperature condensed water; conveying high-temperature condensed water in the high-temperature condensed water tank into the positive displacement heat exchanger through the condensed water pump, and performing heat exchange with tap water in the positive displacement heat exchanger; running water which completes heat exchange enters the low-temperature condensation water tank through the condensation water pipeline and the condensation water drain valve group; the condensed water in the low-temperature condensed water tank is conveyed to domestic water through a pipeline. This is novel through getting into heat exchanger unit twice with the hot water in the gas-distributing cylinder, has done twice recycle, more traditional vapour condensate recovery system has effectively utilized the energy of condensate more.

Description

Municipal steam condensate water recycling and utilizing system
Technical Field
The utility model relates to the technical field of municipal facilities, in particular to a municipal steam condensate recycling and utilizing system.
Background
Steam is essential in industrial production and domestic life. During the use process of the steam, condensation water is inevitably generated due to temperature difference and pressure difference. In order to respond to the policy of energy conservation and emission reduction, steam condensate water is recycled at present. But in the recovery process, a plurality of schemes are only recovery in a form and are not truly recycled, in the prior technical schemes, steam condensate reaches about 90 ℃, the condensate is only connected into a cooling pool, and the temperature is reduced to about 60 ℃ and is directly discharged. Therefore, a lot of heat resources are wasted, the energy and the water quantity of the steam condensate are considerable, and the steam condensate can be well utilized to be a huge benefit.
Therefore, a technical scheme is provided.
SUMMERY OF THE UTILITY MODEL
The problem that exists to current technical scheme. The utility model aims to respond to the national call and recycle steam condensate under the background of low carbon, energy conservation and emission reduction, thereby providing a municipal steam condensate recycling system.
In order to achieve the purpose, the utility model provides the following technical scheme:
a municipal steam condensate recovery and utilization system comprising: the system comprises a steam pipeline, a pressure reducing and cooling valve group, a steam distributing cylinder, a heat exchange unit, a high-temperature condensation water tank, a low-temperature condensation water tank and a positive displacement heat exchanger; the municipal steam enters the steam distributing cylinder after being decompressed by the decompression and cooling valve bank; the steam distributing cylinder conveys steam into the heat exchange unit twice through different branches; high-temperature condensed water of the steam distributing cylinder and the heat exchange unit enters the high-temperature condensed water tank through the back pressure of the high-temperature condensed water; conveying high-temperature condensed water in the high-temperature condensed water tank into the positive displacement heat exchanger through the condensed water pump, and performing heat exchange with tap water in the positive displacement heat exchanger; running water which completes heat exchange enters the low-temperature condensation water tank through the condensation water pipeline and the condensation water drain valve group; the condensed water in the low-temperature condensed water tank is conveyed to domestic water through a pipeline.
As a further improvement of the scheme, the positive displacement heat exchanger comprises a body, wherein the bottom of the heat exchanger body is provided with a high-temperature condensed water inlet, a cold water inlet, a sewage discharge outlet and a condensed water outlet, and the top of the heat exchanger body is provided with a hot water outlet and a safety valve port; the high-temperature condensed water of the steam in the high-temperature condensed water tank enters the positive displacement heat exchanger from the high-temperature condensed water inlet and performs sufficient heat exchange with the cold water entering from the cold water inlet, the required domestic hot water is supplied out from the hot water outlet, and the low-temperature condensed water enters the low-temperature condensed water tank from the condensed water outlet.
As a further improvement of the scheme, the municipal steam pressure is 0.6MPa, and the temperature is 200 ℃.
As a further improvement of the scheme, the municipal steam is decompressed through the decompression and cooling valve bank, the pressure is 0.4Mpa, and the temperature is 145 ℃.
As a further improvement of the scheme, the temperature of the high-temperature condensed water in the high-temperature condensed water tank is 90 ℃.
As a further improvement of the scheme, the low-temperature condensed water in the positive displacement heat exchanger enters the low-temperature condensed water tank at 35 ℃.
Compared with the prior art, the utility model has the beneficial effects that: compared with the traditional steam condensed water recovery system, the system of the utility model more effectively utilizes the energy of the condensed water, and the hot water in the steam distributing cylinder enters the heat exchange unit twice for twice recovery and utilization, thereby fully utilizing the heat, reducing the temperature to the normal temperature, being directly used as the water for washing the garage, supplementing water by an air conditioner, washing and the like, and well recovering the energy.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the system of the present invention;
fig. 2 is a schematic structural diagram of the positive displacement heat exchanger of the present invention.
The drawing is marked with 1, a heat exchanger body; 2. a high temperature condensate inlet; 3. a cold water inlet; 4. a hot water outlet; 5. a sewage draining outlet; 6. a condensed water outlet; 7. a safety valve port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1-2, the municipal steam condensate recycling and utilizing system of the embodiment comprises: the system comprises a steam pipeline, a pressure reducing and cooling valve group, a steam distributing cylinder, a heat exchange unit, a high-temperature condensation water tank, a low-temperature condensation water tank and a positive displacement heat exchanger; the municipal steam is decompressed by the decompression and cooling valve bank and then enters the steam distributing cylinder; the steam distributing cylinder conveys steam into the heat exchange unit through different branches; high-temperature condensed water of the steam distributing cylinder and the heat exchange unit enters the high-temperature condensed water tank through the back pressure of the high-temperature condensed water; conveying high-temperature condensed water in the high-temperature condensed water tank into the positive displacement heat exchanger through the condensed water pump, and performing heat exchange with tap water in the positive displacement heat exchanger; running water which completes heat exchange enters the low-temperature condensation water tank through the condensation water pipeline and the condensation water drain valve group; the condensed water in the low-temperature condensed water tank is conveyed to domestic water through a pipeline.
In the system of the utility model, the positive displacement heat exchanger plays an important role. It reduces the high temperature condensed water to lower temperature water through heat exchange. The positive displacement heat exchanger comprises a heat exchanger body 1, wherein a high-temperature condensed water inlet 2, a cold water inlet 3, a sewage outlet 5 and a condensed water outlet 6 are arranged at the bottom of the heat exchanger body 1, a hot water outlet 4 and a safety valve port 7 are arranged at the top of the heat exchanger body, and a thermometer, a pressure gauge and a temperature sensor are arranged at the top of the heat exchanger body.
The pressure sensor on the top of the positive displacement heat exchanger can transmit the water temperature in the heat exchanger in real time, and the signal can be interlocked with the signal of the whole cooling and heating system. The water temperature signal is displayed on a monitoring interface of the central control room. The high-temperature condensed water of the steam in the high-temperature condensed water tank enters the positive displacement heat exchanger from the high-temperature condensed water inlet 2, the high-temperature condensed water and the cold water entering from the cold water inlet 3 are subjected to full heat exchange, the required domestic hot water is supplied out from the hot water outlet 4, and the low-temperature condensed water enters the low-temperature condensed water tank from the condensed water outlet 6.
Wherein the municipal steam pressure is 0.6MPa, and the temperature is 200 ℃. The municipal steam is decompressed through the decompression and cooling valve bank, the pressure is 0.4Mpa, and the temperature is 145 ℃. The temperature of the high-temperature condensed water in the high-temperature condensed water tank is 90 ℃, and the temperature of the low-temperature condensed water in the positive displacement heat exchanger is 35 ℃ and enters the low-temperature condensed water tank.
Referring to fig. 1, in the present embodiment, the flow of the whole system is that 0.6MPa municipal steam enters the branch cylinder after being reduced to 0.4MPa by the pressure reducing valve bank, a full-open safety valve is arranged on the pipeline at the outlet side of the pressure reducing valve bank, the safety pressure of the safety valve is 0.43MPa, and when the pressure after pressure reduction is higher than the pressure, the pressure is relieved by the safety valve, so as to avoid causing danger. Steam pipes of all branches in the steam distributing cylinder are connected into the heat exchanger unit, high-temperature condensed water at 90 ℃ generated in the heat exchanger unit and the steam distributing cylinder enters the high-temperature condensed water tank, the high-temperature condensed water can be naturally cooled in the water tank so as to avoid cavitation caused by direct water pumping of a water pump, the high-temperature condensed water is sent into the positive displacement heat exchanger by the water pump, and the high-temperature condensed water exchanges heat in the positive displacement heat exchanger to prepare required domestic hot water. After heat exchange, the high-temperature condensed water at 90 ℃ is changed into low-temperature condensed water at 35 ℃, the low-temperature condensed water enters the low-temperature condensed water storage tank from the volumetric heat exchanger, and the condensed water at the moment can be used for washing garages or other washing purposes.
The foregoing is merely illustrative and explanatory of the present invention and various modifications, additions or substitutions may be made to the specific embodiments described by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims (6)

1. A municipal steam condensate recovery and utilization system comprising: the system comprises a steam pipeline, a pressure reducing and cooling valve group, a steam distributing cylinder, a heat exchange unit, a high-temperature condensation water tank, a low-temperature condensation water tank and a positive displacement heat exchanger; the municipal steam is decompressed by the decompression and cooling valve bank and then enters the steam distributing cylinder; the steam distributing cylinder conveys steam into the heat exchange unit twice through different branches; high-temperature condensed water of the steam distributing cylinder and the heat exchange unit enters the high-temperature condensed water tank through the back pressure of the high-temperature condensed water; conveying high-temperature condensed water in the high-temperature condensed water tank into the positive displacement heat exchanger through the condensed water pump, and performing heat exchange with tap water in the positive displacement heat exchanger; running water which completes heat exchange enters the low-temperature condensation water tank through a condensation water pipeline matched with the condensation water drain valve group; the condensed water in the low-temperature condensed water tank is conveyed to domestic water through a pipeline.
2. The municipal steam condensate recovery and utilization system according to claim 1, wherein the positive displacement heat exchanger comprises a heat exchanger body (1), the bottom of the heat exchanger body (1) is provided with a high-temperature condensate inlet (2), a cold water inlet (3), a sewage drain (5) and a condensate outlet (6), and the top is provided with a hot water outlet (4) and a safety valve port (7); high-temperature condensed water of steam in the high-temperature condensed water tank enters the positive displacement heat exchanger from the high-temperature condensed water inlet (2) and is subjected to sufficient heat exchange with cold water entering from the cold water inlet (3), required domestic hot water is supplied out from the hot water outlet (4), and low-temperature condensed water enters the low-temperature condensed water tank from the condensed water outlet (6).
3. The municipal steam condensate recovery and utilization system of claim 1, wherein the municipal steam pressure is 0.6Mpa and the temperature is 200 ℃.
4. The municipal steam condensate recovery and utilization system of claim 1, wherein the municipal steam is depressurized through the pressure reducing and temperature reducing valve set to a pressure of 0.4Mpa and a temperature of 145 ℃.
5. The municipal steam condensate recovery and utilization system of claim 1, wherein the temperature of the high temperature condensate in the high temperature condensate tank is 90 ℃.
6. The municipal steam condensate recovery and utilization system of claim 1, wherein the low temperature condensate in the positive displacement heat exchanger enters the low temperature condensate tank at 35 ℃.
CN202220520197.1U 2022-03-11 2022-03-11 Municipal steam condensate water recycling and utilizing system Active CN216954118U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220520197.1U CN216954118U (en) 2022-03-11 2022-03-11 Municipal steam condensate water recycling and utilizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220520197.1U CN216954118U (en) 2022-03-11 2022-03-11 Municipal steam condensate water recycling and utilizing system

Publications (1)

Publication Number Publication Date
CN216954118U true CN216954118U (en) 2022-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220520197.1U Active CN216954118U (en) 2022-03-11 2022-03-11 Municipal steam condensate water recycling and utilizing system

Country Status (1)

Country Link
CN (1) CN216954118U (en)

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