CN218410068U - Integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery function - Google Patents
Integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery function Download PDFInfo
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- CN218410068U CN218410068U CN202221638862.3U CN202221638862U CN218410068U CN 218410068 U CN218410068 U CN 218410068U CN 202221638862 U CN202221638862 U CN 202221638862U CN 218410068 U CN218410068 U CN 218410068U
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Abstract
The utility model belongs to the technical field of waste heat utilization, in particular to an integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery, which comprises a steam condensate inlet pipeline, a steam condensate discharge pipeline, a steam inlet pipeline, a condensed water discharge pipeline, a water-water heat exchanger and a plurality of steam-water heat exchangers, wherein the steam condensate inlet pipeline is connected with a steam condensate inlet of the water-water heat exchanger, the steam condensate discharge pipeline is connected with a steam condensate outlet of the water-water heat exchanger, the steam inlet pipeline is respectively connected with steam inlets of the steam-water heat exchangers, and the condensed water discharge pipeline is respectively connected with condensed water outlets of the steam-water heat exchangers; the solar water heater also comprises a circulating water pipeline, wherein the circulating water pipeline is respectively connected with the water-water heat exchanger and the plurality of steam-water heat exchangers, and the circulating water pipeline is connected with a heat tracing hot water user. The utility model provides an effectively utilize low-grade steam condensate in order to improve the whole sled dress type double heat source heat transfer system of system energy utilization efficiency.
Description
Technical Field
The utility model belongs to the technical field of waste heat utilization, in particular to take two heat source heat transfer systems of whole sled dress type of lime set waste heat recovery.
Background
The heat tracing of process system pipelines and equipment is one of the core contents of petrochemical enterprise devices. The petrochemical industry is one of the most energy-consuming industrial departments in China, and in the nine-high energy-consuming industry related to the action of 'energy audit and energy-saving planning' of thousands of enterprises started in 2006, the energy-consuming key enterprises of the petrochemical industry account for about one third. Therefore, the energy utilization condition and the energy saving effect of the petrochemical industry have very important influence on the promotion of energy saving of the whole industry. The energy utilization efficiency of the petrochemical industry in China is improved quickly, the unit energy consumption of part of product production devices is close to or exceeds the international level, but the energy utilization efficiency is still far away from the international advanced level. Therefore, in China, "carbon dioxide emission strives to reach the peak value before 2030 years, and strives to realize carbon neutralization before 2060 years. "under the promise of China to the international society, energy conservation and carbon reduction in the petrochemical industry are particularly important.
In the traditional petrochemical enterprise device process pipeline and equipment heat tracing system design, steam heat tracing, electric heat tracing and hot water heat tracing methods are often adopted. Steam and electricity are high-grade energy sources, and the utilization rate of the heat tracing energy sources is low when the steam and the electricity are directly used; the traditional hot water heat tracing is also the steam heat exchange into hot water, and the problem of low energy utilization rate also exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a take whole sled dress type double heat source heat transfer system of condensate waste heat recovery of low-grade steam condensate in order to improve system energy utilization efficiency effectively.
The utility model discloses the technical scheme who adopts does:
an integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery comprises a steam condensate inlet pipeline, a steam condensate discharge pipeline, a steam inlet pipeline, a condensed water discharge pipeline, a water-water heat exchanger and a plurality of steam-water heat exchangers, wherein the steam condensate inlet pipeline is connected to a steam condensate inlet of the water-water heat exchanger; the heat tracing system further comprises a circulating water pipeline, one end of the circulating water pipeline is respectively connected with a circulating water inlet of the water-water heat exchanger and circulating water inlets of the steam-water heat exchangers, the other end of the circulating water pipeline is respectively connected with a circulating water outlet of the water-water heat exchanger and circulating water outlets of the steam-water heat exchangers, and heat tracing hot water users are connected to the circulating water pipeline.
The utility model discloses a water-water heat exchanger carries out the heat transfer with technology steam condensate and companion's hot water user's circulating water, and companion's the not enough partial heat transfer volume of surplus that hot water user's circulating water required is as supplementing by vapour-water heat exchanger, thereby the utility model discloses make full use of technology steam condensate's waste heat improves energy efficiency.
As the utility model discloses a preferred scheme, circulating pipe is connected with secondary side water supply temperature changer on the road, is connected with lime set electrical control valve on the steam condensate gets into the pipeline, is connected with steam electrical control valve on the steam admission pipeline, and lime set electrical control valve and steam electrical control valve are connected with secondary side water supply temperature changer respectively.
The secondary side water supply temperature is measured by a secondary side water supply temperature transmitter and then linked with the condensate electric regulating valve and the steam electric regulating valve. The adjusting sequence is as follows: when the secondary side water supply temperature is higher than the set temperature, the steam electric regulating valve is turned down, and if the steam electric regulating valve is still too high after being completely turned off, the condensate electric regulating valve is turned down; when the secondary side water supply temperature is lower than the set temperature, the electric regulating valve for the large condensate is opened first, and if the temperature is not reached to the set temperature after all the valves are opened, the electric regulating valve for the steam is opened again.
As the preferred scheme of the utility model, a bypass pipeline is connected between the steam condensate inlet pipeline and the steam condensate outlet pipeline, and an electric two-way regulating valve is connected on the bypass pipeline; and the opening of the electric two-way regulating valve on the bypass pipeline is controlled by a pressure difference value measured by a pressure transmitter on the steam condensate inlet pipeline and a pressure transmitter on the steam condensate outlet pipeline. The water-water heat exchanger fully utilizes the waste heat of the condensate, and when the heat consumption is low in summer and the steam condensate is rich, the redundant condensate is controlled by the electric two-way regulating valve and is discharged through the bypass pipe.
As the utility model discloses an optimal scheme, it has a plurality of circulating water pump to connect in parallel on the circulating water pipeline, and the pressure difference and a plurality of circulating water pump frequency conversion chain control that the gained are measured to the pressure transmitter between the both sides of heat tracing hot water user. The rotating speed of the water pumps is changed by the plurality of circulating water pumps according to the pressure difference value measured by the pressure transmitter, the water supply is adjusted, and the pressure stability of a circulating water pipeline is ensured.
As the preferred proposal of the utility model, the circulating water pipeline is also connected with a dirt separator. Circulating water passes through a heat tracing hot water user and is filtered by a dirt separator.
As the preferred proposal of the utility model, the circulating water pipeline is also connected with an electronic water treatment instrument. The circulating water passes through a dirt separator and then is subjected to algae removal, sterilization and disinfection treatment by an electronic water treatment instrument.
As the utility model discloses an optimal scheme, be connected with the moisturizing pipeline between condensate discharge line and the circulating water pipeline, be connected with the moisturizing case on the moisturizing pipeline, be provided with a plurality of parallelly connected level pressure moisturizing pumps on the moisturizing pipeline. The condensed water in the condensed water discharge pipeline is preferentially discharged into the water replenishing tank. When the system is in water shortage and the pressure is too low, water is pumped from the water replenishing tank through the constant-pressure water replenishing pump to replenish water for the system. When the system pressure returns to normal and water shortage does not occur, the condensed water stops being discharged into the water replenishing tank, and the redundant condensed water is connected to the closed intelligent condensed water recoverer through the condensed water discharge pipeline.
As the preferred proposal of the utility model, the water replenishing tank is also connected with a desalted water replenishing pipeline. And the condensed water of the condensed water discharge pipeline is preferentially selected for water supplement in the water supplement tank, when the condensed water is insufficient, the electromagnetic valve on the desalted water supplement pipeline is opened, and the desalted water enters the water supplement tank.
As the preferred scheme of the utility model, install magnetism on the moisturizing case and turn over the board level gauge. When the water replenishing tank reaches a high water level, closing a pipeline for introducing desalted water or condensed water; and when the water level is low, the constant-pressure water replenishing pump stops replenishing water to the system.
As the utility model discloses a preferred scheme, still there is diaphragm type atmospheric pressure expansion tank on the level pressure moisturizing pipeline through the pipe connection. When the system pressure is lower than a set value, water is supplemented to the system through the contraction of the diaphragm type air pressure expansion tank so as to maintain the lowest working pressure of the system; when the pressure of the system continuously drops and the diaphragm type air pressure expansion tank cannot meet the water supplementing requirement of the system, the constant pressure water supplementing pump is started to supplement water to the system.
The utility model has the advantages that:
1. the utility model discloses a water-water heat exchanger carries out the heat transfer with technology steam condensate and companion's hot water user's circulating water, and companion's the not enough partial heat transfer volume of surplus that hot water user's circulating water required is as supplementing by vapour-water heat exchanger, thereby the utility model discloses make full use of technology steam condensate's waste heat improves energy efficiency.
2. The integral skid-mounted double-heat-source heat exchange system with the condensate waste heat recovery integrates and skid-mounts all equipment and corresponding components such as a matched instrument, a safety valve, a full-automatic temperature control valve, a temperature transmitter, a pressure transmitter and the like on an integral base, is convenient to place and mount, and has small occupied area and small volume.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-steam condensate enters a pipeline; 2-a steam condensate discharge pipeline; 3-steam inlet pipe; 4-a condensed water discharge pipeline; 5-a water-water heat exchanger; 6-steam-water heat exchanger; 7-a circulating water pipeline; 8-a bypass line; 9-water supplementing pipeline; 11-electric regulating valve for condensate; 12-an incoming line pressure transmitter; 21-exhaust line pressure transmitter; 31-electric steam regulating valve; 71-heat tracing hot water user; 72-secondary side water supply temperature transmitter; 73-a circulating water pump; 74-a dirt separator; 75-electronic water treatment instrument; 76-a front end pressure transmitter; 77-rear end pressure transmitter; 81-electric two-way regulating valve; 91-supplementing water tanks; 92-constant pressure water replenishing pump; 93-desalted water replenishing pipeline; 94-magnetic turn plate level gauge; 95-diaphragm type pneumatic expansion tank.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, the integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery of the embodiment comprises a steam condensate inlet pipeline 1, a steam condensate outlet pipeline 2, a steam inlet pipeline 3, a condensed water outlet pipeline 4, a water-water heat exchanger 5 and two steam-water heat exchangers 6, wherein the steam condensate inlet pipeline 1 is connected to a steam condensate inlet of the water-water heat exchanger 5, the steam condensate outlet pipeline 2 is connected to a steam condensate outlet of the water-water heat exchanger 5, the steam inlet pipeline 3 is respectively connected to steam inlets of the two steam-water heat exchangers 6, and the condensed water outlet pipeline 4 is respectively connected to condensed water outlets of the two steam-water heat exchangers 6; the heat tracing system further comprises a circulating water pipeline 7, one end of the circulating water pipeline 7 is respectively connected with a circulating water inlet of the water-water heat exchanger 5 and circulating water inlets of the two steam-water heat exchangers 6, the other end of the circulating water pipeline 7 is respectively connected with a circulating water outlet of the water-water heat exchanger 5 and circulating water outlets of the two steam-water heat exchangers 6, and a heat tracing hot water user 71 is connected to the circulating water pipeline 7.
The utility model discloses a water-water heat exchanger 5 carries out the heat transfer with technology steam condensate and the circulating water of companion's hot water user 71, and the required surplus not enough partial heat transfer volume of the circulating water of companion's hot water user 71 is as supplementing by vapour-water heat exchanger 6, thereby the utility model discloses make full use of technology steam condensate's waste heat improves energy utilization efficiency.
When the process steam condensate is insufficient or absent, the steam-water heat exchanger 6 should be able to adequately ensure that the total heat load is met. And when any one steam-water heat exchanger 6 stops working, the heat exchange capacity of the residual steam-water heat exchanger 6 is not lower than 65-70% of the total heat load.
The integral skid-mounted double-heat-source heat exchange system with the condensate waste heat recovery integrates and skid-mounts all equipment and corresponding components such as a matched instrument, a safety valve, a full-automatic temperature control valve, a temperature transmitter, a pressure transmitter and the like on an integral base, is convenient to place and mount, and has small occupied area and small volume.
Furthermore, a secondary side water supply temperature transmitter 72 is connected to the circulating water pipeline 7, a condensate electric regulating valve 11 is connected to the steam condensate inlet pipeline 1, a steam electric regulating valve 31 is connected to the steam inlet pipeline 3, and the condensate electric regulating valve 11 and the steam electric regulating valve 31 are respectively linked with the secondary side water supply temperature transmitter 72. The secondary side water supply temperature is measured by the secondary side water supply temperature transmitter 72 and linked with the condensate electric control valve 11 and the steam electric control valve 31. The adjusting sequence is as follows: when the secondary side water supply temperature is higher than the set temperature, the steam electric regulating valve 31 is closed, if the temperature is still too high after all the steam electric regulating valve is closed, the condensate electric regulating valve 11 is closed; when the secondary side water supply temperature is lower than the set temperature, the electric regulating valve 11 for the large condensate is opened first, and if the temperature is not reached to the set temperature after all the valves are opened, the electric regulating valve 31 for the steam is opened again.
Furthermore, a bypass pipeline 8 is connected between the steam condensate inlet pipeline 1 and the steam condensate discharge pipeline 2, and an electric two-way regulating valve 81 is connected on the bypass pipeline 8; the steam condensate inlet pipeline 1 is provided with an inlet pipeline pressure transmitter 12, the steam condensate outlet pipeline 2 is provided with an outlet pipeline pressure transmitter 21, and the inlet pipeline pressure transmitter 12 and the outlet pipeline pressure transmitter 21 measure the obtained difference value to control the opening of the electric two-way regulating valve 81 in a linkage manner. The water-water heat exchanger 5 fully utilizes the residual heat of the condensate, and when the heat consumption is low in summer and the steam condensate is rich, the redundant condensate is controlled by the electric two-way regulating valve 81 and is discharged through the bypass pipe.
Specifically, a plurality of circulating water pumps 73 are connected in parallel to the circulating water pipeline 7, a front end pressure transmitter 76 and a rear end pressure transmitter 77 are connected between two sides of the heat tracing hot water user 71, and a pressure difference value measured by the front end pressure transmitter 76 and the rear end pressure transmitter 77 is controlled by the plurality of circulating water pumps 73 in a frequency conversion interlocking manner. The rotating speed of the water pumps 73 is changed according to the pressure difference of circulating water on two sides of the heat tracing hot water user 71, the water supply is adjusted, and the pressure stability of a circulating water pipeline is guaranteed. A dirt separator 74 is also connected to the circulating water line 7. The circulating water passes through the heat tracing hot water user 71 and then is filtered by the dirt separator 74. The circulating water pipeline 7 is also connected with an electronic water treatment instrument 75. The circulating water is filtered by a dirt separator 74 and then is subjected to algae removal, sterilization and disinfection by an electronic water treatment instrument 75. The constant pressure water replenishing pipeline 9 is also connected with a diaphragm type air pressure expansion tank 95 through a pipeline. When the system pressure is lower than a set value, the diaphragm type air pressure expansion tank 95 contracts to supplement water to the system so as to maintain the lowest working pressure of the system; when the system pressure continuously drops and the diaphragm type air pressure expansion tank 95 cannot meet the water replenishing requirement of the system, the constant pressure water replenishing pump 92 is started to replenish water to the system.
In order to replenish the system, a constant pressure water replenishing pipeline 9 is connected between the condensed water discharge pipeline 4 and the circulating water pipeline 7, a water replenishing tank 91 is connected to the water replenishing pipeline 9, and a plurality of constant pressure water replenishing pumps 92 are connected in parallel to the water replenishing pipeline 9. The condensed water in the condensed water discharge line 4 is preferentially discharged into the water replenishing tank 91. When the system is in water shortage and the pressure is too low and the diaphragm type air pressure expansion tank 95 cannot meet the water replenishing requirement of the system, the constant pressure water replenishing pump 92 is started to pump water from the water replenishing tank 91 to replenish water for the system. When the system pressure returns to normal and water shortage does not occur, the condensed water stops being discharged into the water replenishing tank 91, and the redundant condensed water is connected to the closed intelligent condensed water recoverer through the condensed water discharge pipeline 4. The water replenishing tank 91 is also connected with a desalted water replenishing pipeline 93. The water in the make-up water tank 91 is preferably the condensed water in the condensed water discharge pipeline 4, and when the condensed water is insufficient, the electromagnetic valve on the desalted water make-up pipeline 93 is opened, and the desalted water enters the make-up water tank 91. The water replenishing tank 91 is provided with a magnetic turning plate liquid level meter 94. When the water replenishing tank 91 reaches a high water level, the pipeline for introducing desalted water or condensed water is closed; at a low water level, the constant pressure water replenishing pump 92 stops replenishing water to the system.
The working process comprises the following steps:
as shown in fig. 1, the whole skid-mounted double-heat-source heat exchange system with condensate waste heat recovery adopts a plurality of heat exchange heat exchangers to be used in parallel, and the number of the heat exchange heat exchangers 6 including one water-water heat exchanger 5 and two steam-water heat exchangers 6 can be configured according to the heat exchange quantity. The primary side heat source of the water-water heat exchanger 5 is steam condensate, and the primary side heat source of the steam-water heat exchanger 6 is steam. The heat-tracing hot water after heat exchange is supplied to a heat-tracing hot water user 71, the temperature of the hot water is measured by a secondary side water supply temperature transmitter 72, after heat exchange by the heat-tracing hot water user 71, the water is filtered by a dirt separator 74, subjected to algae removal and sterilization by an electronic water treatment instrument 75, and then conveyed to the water inlet-water heat exchanger 5 and the steam-water heat exchanger 6 by a circulating water pump 73 for heat exchange again. When the system is in water shortage and the pressure is lower than a set value, the diaphragm type air pressure expansion tank 95 contracts to supplement water to the system so as to maintain the lowest working pressure of the system; when the system pressure continuously drops and the diaphragm type air pressure expansion tank 95 cannot meet the water replenishing requirement of the system, the constant pressure water replenishing pump 92 is started to pump water from the water replenishing tank 91 to replenish water to the system.
The secondary side water supply temperature is measured by the secondary side water supply temperature transmitter 72 and linked with the condensate electric control valve 11 and the steam electric control valve 31. The adjusting sequence is as follows: when the secondary side water supply temperature is higher than the set temperature, the steam electric regulating valve 31 is turned down, if the temperature is still too high after the secondary side water supply temperature is completely closed, the condensate electric regulating valve 11 is turned down; when the secondary side water supply temperature is lower than the set temperature, the electric regulating valve 11 for the large condensate is opened first, and if the temperature is not reached to the set temperature after all the valves are opened, the electric regulating valve 31 for the steam is opened again. The water-water heat exchanger 5 for recovering the condensate waste heat fully utilizes the condensate waste heat, and when the heat consumption is low in summer and the steam condensate is rich, the redundant condensate is controlled by the electric two-way regulating valve 81 and is discharged through the bypass pipe.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a take two heat source heat transfer systems of whole sled dress type of condensate waste heat recovery which characterized in that: the system comprises a steam condensate inlet pipeline (1), a steam condensate discharge pipeline (2), a steam inlet pipeline (3), a condensed water discharge pipeline (4), a water-water heat exchanger (5) and a plurality of steam-water heat exchangers (6), wherein the steam condensate inlet pipeline (1) is connected to a steam condensate inlet of the water-water heat exchanger (5), the steam condensate discharge pipeline (2) is connected to a steam condensate outlet of the water-water heat exchanger (5), the steam inlet pipeline (3) is respectively connected with steam inlets of the plurality of steam-water heat exchangers (6), and the condensed water discharge pipeline (4) is respectively connected with condensed water outlets of the plurality of steam-water heat exchangers (6); the solar water heater further comprises a circulating water pipeline (7), one end of the circulating water pipeline (7) is connected with a circulating water inlet of the water-water heat exchanger (5) and circulating water inlets of the steam-water heat exchangers (6) respectively, the other end of the circulating water pipeline (7) is connected with a circulating water outlet of the water-water heat exchanger (5) and circulating water outlets of the steam-water heat exchangers (6) respectively, and a heat tracing hot water user (71) is connected to the circulating water pipeline (7).
2. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: be connected with secondary side water supply temperature transmitter (72) on circulating water pipeline (7), be connected with on steam condensate entering pipeline (1) and congeal liquid electrical control valve (11), be connected with on steam entering pipeline (3) steam electrical control valve (31), congeal liquid electrical control valve (11) and steam electrical control valve (31) all interlock with secondary side water supply temperature transmitter (72).
3. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: a bypass pipeline (8) is connected between the steam condensate inlet pipeline (1) and the steam condensate discharge pipeline (2), and an electric two-way regulating valve (81) is connected to the bypass pipeline (8); an inlet pipeline pressure transmitter (12) is arranged on the steam condensate inlet pipeline (1), and an outlet pipeline pressure transmitter (21) is arranged on the steam condensate outlet pipeline (2).
4. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: a plurality of circulating water pumps (73) which are connected in parallel are arranged on the circulating water pipeline (7), a front end pressure transmitter (76) and a rear end pressure transmitter (77) are connected to the circulating water pipeline (7), and the front end pressure transmitter (76) and the rear end pressure transmitter (77) are respectively arranged on two sides of the heat tracing hot water user (71).
5. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: the circulating water pipeline (7) is also connected with a dirt separator (74).
6. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: and the circulating water pipeline (7) is also connected with an electronic water treatment instrument (75).
7. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 1, is characterized in that: a constant-pressure water replenishing pipeline (9) is connected between the condensed water discharge pipeline (4) and the circulating water pipeline (7), a water replenishing tank (91) is connected to the constant-pressure water replenishing pipeline (9), and a plurality of constant-pressure water replenishing pumps (92) connected in parallel are arranged on the water replenishing pipeline (9).
8. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 7, is characterized in that: the water replenishing tank (91) is also connected with a desalted water replenishing pipeline (93).
9. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in claim 8, is characterized in that: and a magnetic turning plate liquid level meter (94) is arranged on the water supplementing tank (91).
10. The integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery as claimed in any one of claims 7 to 9, is characterized in that: and the constant-pressure water supplementing pipeline (9) is also connected with a diaphragm type air pressure expansion tank (95) through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221638862.3U CN218410068U (en) | 2022-06-28 | 2022-06-28 | Integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221638862.3U CN218410068U (en) | 2022-06-28 | 2022-06-28 | Integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery function |
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| CN218410068U true CN218410068U (en) | 2023-01-31 |
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| CN202221638862.3U Active CN218410068U (en) | 2022-06-28 | 2022-06-28 | Integral skid-mounted double-heat-source heat exchange system with condensate waste heat recovery function |
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| CN (1) | CN218410068U (en) |
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- 2022-06-28 CN CN202221638862.3U patent/CN218410068U/en active Active
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