CN215003001U - Steam condensate heat recovery system - Google Patents
Steam condensate heat recovery system Download PDFInfo
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- CN215003001U CN215003001U CN202121322862.8U CN202121322862U CN215003001U CN 215003001 U CN215003001 U CN 215003001U CN 202121322862 U CN202121322862 U CN 202121322862U CN 215003001 U CN215003001 U CN 215003001U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model provides a steam condensate heat recovery system, this system are including condensate tank and water source heat pump set be provided with the condensate inlet of collecting the condensate on the condensate tank for hold the condensate, through the heat recovery of water source heat pump set with the condensate, and cool down through the cooling tower when the condensate temperature is too high. And the water source heat pump unit is used for recovering heat of the condensed water in the condensed water tank and secondarily utilizing the recovered heat through the heat source water outlet pipe. The utility model discloses a set up the water source heat pump set who links to each other with the condensate tank, realize the heat recovery with the condensate tank and transmit the heat source outlet pipe, the energy waste is avoided to low-grade, the great heat of volatility in the recoverable steam condensate water of recovery system. The utility model discloses a steam condensate heat recovery system has realized that the temporary storage, heat recovery and the cooling of factory steam condensate discharge.
Description
Technical Field
The utility model belongs to the technical field of industry waste heat recovery equipment technique and specifically relates to a steam condensate heat recovery system.
Background
After the clean factory building of pharmaceutical industry uses municipal steam, because the steam condensate water is unstable in heat energy, large in fluctuation of temperature and flow rate and difficult to recover, the heat energy is usually abandoned and not recovered. Because the steam condensate water in the plant area has higher discharge temperature and larger instantaneous flow fluctuation, in order to relieve the harm caused by high temperature, a cooling pool is usually required to be arranged, and tap water is introduced to cool to below 40 ℃ and is discharged to a municipal drainage pipe network, so that the heat of the steam condensate water is wasted, and the water consumption and the discharge capacity are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steam condensate heat recovery system to solve the difficult problem of retrieving and the water waste of current steam condensate.
The utility model discloses a realize like this: a steam condensate heat recovery system comprising:
the condensation water tank is provided with a condensation water inlet for collecting condensation water, is used for containing the condensation water and recovers heat in the condensation water through the water source heat pump unit; and
the water source heat pump unit is connected with the condensate tank through a unit water inlet pipe and a unit water outlet pipe, a circulating water pump is arranged on the unit water inlet pipe, a heat source water outlet pipe and a heat source return pipe are arranged on the water source heat pump unit, and the heat source return pipe or the heat source water outlet pipe is provided with the circulating water pump for recovering heat of condensate in the condensate tank and secondarily utilizing the recovered heat through the heat source water outlet pipe.
Further, the utility model discloses can realize according to following technical scheme:
still including the cooling tower, the cooling tower through cooling inlet tube and cooling outlet pipe with the condensate tank is connected be provided with circulating water pump on the cooling inlet tube for the condensate water in the condensate tank is cooled down when the temperature of water is too high in the condensate tank.
And a temperature sensor and a liquid level sensor are arranged in the condensation water tank.
An overflow port is arranged on the condensed water tank and is connected with the municipal drainage pipe network through a pipeline; the bottom of the condensation water tank is provided with a drain pipe, and the drain pipe is provided with a valve.
A differential pressure sensor and an electric differential pressure bypass valve are arranged between a heat source water outlet pipe and a heat source return pipe of the water source heat pump unit, the differential pressure sensor is electrically connected with the electric differential pressure bypass valve, and the differential pressure sensor is used for controlling the opening and closing of the electric differential pressure bypass valve so as to keep the differential pressure between the heat source water outlet pipe and the heat source return pipe constant.
The condensation water tank is a heat preservation water tank.
The utility model discloses a set up the water source heat pump set who links to each other with the condensate tank, realize the heat recovery with the condensate tank and transmit the heat source outlet pipe, low grade, the great heat of volatility in the recoverable steam condensate water of recovery system avoid the energy waste to reduce the running water volume and the blow off volume of using because of the cooling. The cooling tower connected with the condensation water tank is arranged, so that the water in the condensation water tank is prevented from being too high in temperature. The utility model discloses a setting of differential pressure sensor and electronic differential pressure bypass valve can satisfy the change of hot water user demand, can be used to the heating of factory or technology production and use. The utility model discloses a steam condensate heat recovery system has realized that the temporary storage, heat recovery and the cooling of factory steam condensate discharge.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the system comprises a condensation water tank, a circulating water pump, a cooling tower, a heat pump unit, a temperature sensor, a motor-driven differential pressure bypass valve, a differential pressure sensor, a valve, a liquid level sensor and a water level sensor, wherein the condensation water tank is 2, the circulating water pump is 3, the cooling tower is 4, the heat pump unit is 5, the temperature sensor is 6, the motor-driven differential pressure bypass valve is 7, the differential pressure sensor is 8, the valve is 9.
Detailed Description
The following description is given for illustrative embodiments of the present invention with reference to the accompanying drawings.
As shown in FIG. 1, the heat recovery system of the steam condensate of the present invention comprises a condensate tank 1, a cooling tower 3 and a water source heat pump unit 4.
Wherein, condensate tank 1 is holding water tank for hold the condensate water, retrieves the heat in the condensate water through water source heat pump set 4, and cools down through cooling tower 3 when the condensate water temperature is too high. Be provided with the condensate inlet at condensate tank 1 top, be provided with the condensate pipe on the condensate inlet, the steam condensate pipe gets into condensate tank 1 through the condensate pipe, and its capacity can satisfy 2~6 h's under the normal operating condition water holding capacity. The setting of the condensate water tank 1 reduces the influence of the steam condensate flow and the water temperature fluctuation of a factory on a system.
A temperature sensor 5 is arranged in the condensation water tank 1, the upper computer can display the water temperature, an alarm device is arranged on the upper computer, and when the water temperature is higher than a set temperature (for example, set to 40 ℃), the alarm device gives an alarm. Meanwhile, a liquid level sensor 9 is arranged in the condensation water tank 1, when the liquid level sensor 9 detects that the liquid level is too low, the liquid level sensor 9 sends a signal at the moment, and the water source heat pump unit 4 is closed.
An overflow port is arranged on the upper part of one end face of the condensation water tank 1 and is connected with a municipal drainage pipe network through a pipeline. When the water in the condensation water tank 1 reaches or even exceeds the overflow water level, the water overflows through the overflow port and is discharged to a municipal drainage pipe network. The bottom of the condensation water tank 1 is provided with a drain pipe, the drain pipe is provided with a valve 8, and the drain pipe is connected with a municipal drainage pipe network. Can be according to actual need, unscrew the manual drainage of valve 8, with the water of the interior water of condensate tank 1 to municipal drainage pipe network.
The cooling tower 3 is provided with a cooling water inlet pipe and a cooling water outlet pipe which are connected with the condensate water tank 1, and the cooling water outlet pipe of the cooling tower 3 is higher than the highest liquid level of the condensate water tank 1 and is not provided with water supplement, so that two circulating water pumps 2 are only arranged on the water inlet pipe of the cooling tower 3, wherein the circulating water pumps 2 are used for one use. The cooled condensate can flow back from the cooling tower 3 to the condensate tank 1 by gravity.
Generally, the temperature of the water in the condensate tank 1 under normal operating conditions is 30 ℃. When the temperature of water is higher than 37 ℃ (the temperature can be set according to specific needs) in the condensate tank 1, the cooling tower 3 and the cooling water circulating water pump 2 are started, and the condensate water in the condensate tank 1 is cooled through the cooling tower 3. When the temperature of the water in the condensate tank 1 is lower than 32 ℃ (the temperature can be set according to specific needs), the cooling tower 3 and the circulating water pump 2 of the cooling water are closed. The cooling tower 3 is an auxiliary cooling facility for preventing the water in the condensate tank 1 from being excessively high in temperature.
The water source heat pump unit 4 is provided with a unit water inlet pipe and a unit water outlet pipe which are connected with the condensation water tank 1. Because the condensate tank 1 is an open type water tank, the devices and pipelines before the pump are not too many, otherwise the possibility of cavitation exists, two circulating water pumps 2 are only arranged on the water inlet pipe of the unit, wherein the circulating water pumps 2 are used for standby. The water source heat pump unit 4 is provided with a heat source water outlet pipe and a heat source return pipe, and the heat source return pipe or the heat source water outlet pipe is provided with two circulating water pumps 2, wherein the circulating water pumps 2 are used one by one. A differential pressure sensor 7 and an electric differential pressure bypass valve 6 are arranged between a heat source water outlet pipe and a heat source return pipe of the water source heat pump unit 4, and the differential pressure sensor 7 is electrically connected with the electric differential pressure bypass valve 6. The differential pressure sensor 7 controls the opening and closing of the electric differential pressure bypass valve 6 to keep the differential pressure between the heat source water outlet pipe and the heat source return pipe constant.
The water source heat pump unit 4 is used for recovering heat of the condensed water in the condensed water tank 1 and secondarily utilizing the recovered heat through the heat source water outlet pipe. The utility model discloses a water source heat pump set 4 adopts the environmental protection refrigerant, through contrary carnot circulation, with the heat transfer of low temperature side to the high temperature side. The water source heat pump unit 4 can be automatically or manually started. Two circulating water pumps 2 are arranged on the heat source return pipe or the heat source water outlet pipe, wherein the circulating water pumps 2 are used one by one. The water source heat pump unit 4 controls the output of the unit through PID calculation according to the high-temperature side outlet water temperature, so that the high-temperature side outlet water temperature is controlled to be constant, and the high-temperature side outlet water temperature can be set to be 60 ℃ or 65 ℃ (the temperature can be set according to specific needs, but cannot exceed the operation range of the water source heat pump). The heat output by the water source heat pump unit 4 is 15-100%, and continuous adjustment is realized through a frequency conversion technology. When the water temperature in the condensation water tank 1 is lower than 20 ℃ (the temperature can be set according to specific requirements), heat recovery is not needed to be carried out on the water at the temperature, and therefore the water source heat pump unit 4 is turned off at the moment. When the temperature of the outlet water at the high-temperature side of the heat pump unit 4 is higher than 70 ℃ (the temperature can be set according to specific requirements), the water source heat pump unit 4 is closed.
An electric differential pressure bypass valve 6 group and a differential pressure sensor 7 are arranged between the water supply and return main pipes, and the opening degree of the electric differential pressure bypass valve 6 is controlled according to the feedback signal of the differential pressure sensor 7, so that the requirement of the change of the consumption of hot water users is met. When the hot water usage amount becomes small, the differential pressure sensor 7 electrically drives the differential pressure bypass valve 6 to be opened large by differential pressure, so that the bypass flow rate through the differential pressure bypass valve 6 becomes large, and the hot water flow rate through the water source heat pump unit 4 becomes substantially constant.
Claims (6)
1. A heat recovery system for steam condensate water is characterized by comprising:
the condensation water tank is provided with a condensation water inlet for collecting condensation water, is used for containing the condensation water and recovers heat in the condensation water through the water source heat pump unit; and
the water source heat pump unit is connected with the condensate tank through a unit water inlet pipe and a unit water outlet pipe, a circulating water pump is arranged on the unit water inlet pipe, a heat source water outlet pipe and a heat source return pipe are arranged on the water source heat pump unit, and the heat source return pipe or the heat source water outlet pipe is provided with the circulating water pump for recovering heat of condensate in the condensate tank and secondarily utilizing the recovered heat through the heat source water outlet pipe.
2. The steam condensate heat recovery system of claim 1, further comprising a cooling tower connected to the condensate tank through a cooling water inlet pipe and a cooling water outlet pipe, wherein the cooling water inlet pipe is provided with a circulating water pump for cooling the condensate in the condensate tank when the temperature of the water in the condensate tank is too high.
3. The steam condensate heat recovery system of claim 1, wherein a temperature sensor and a level sensor are disposed within the condensate tank.
4. The steam condensate heat recovery system of claim 1, wherein an overflow port is provided in the condensate tank, the overflow port being connected to a municipal drainage pipe network via a conduit; the bottom of the condensation water tank is provided with a drain pipe, and the drain pipe is provided with a valve.
5. The steam condensate heat recovery system of claim 1, wherein a differential pressure sensor and an electric differential pressure bypass valve are arranged between a heat source outlet pipe and a heat source return pipe of the water source heat pump unit, the differential pressure sensor is electrically connected with the electric differential pressure bypass valve, and the differential pressure sensor is used for controlling the opening and closing of the electric differential pressure bypass valve so as to keep the differential pressure between the heat source outlet pipe and the heat source return pipe constant.
6. The steam condensate heat recovery system of claim 1, wherein the condensate tank is a holding tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121322862.8U CN215003001U (en) | 2021-06-15 | 2021-06-15 | Steam condensate heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121322862.8U CN215003001U (en) | 2021-06-15 | 2021-06-15 | Steam condensate heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215003001U true CN215003001U (en) | 2021-12-03 |
Family
ID=79127882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121322862.8U Active CN215003001U (en) | 2021-06-15 | 2021-06-15 | Steam condensate heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215003001U (en) |
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2021
- 2021-06-15 CN CN202121322862.8U patent/CN215003001U/en active Active
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