Hot water recycling system

Abstract

The utility model relates to a hot water recycling system, and belongs to the technical field of hot water recycling. Comprising a hot water tank, a condensate water tank, a hot water cooling pool, a circulating water pool, a hot water circulating pump, a circulating water pump, a condensate water cooling tower, a circulating water cooling tower, a workshop hot water header pipe, a workshop steam condensate water header pipe, a buried pipe, a workshop circulating water pipe network, a circulating water return header pipe, a first conveying water pump, a second conveying water pump, a circulating pipe and a second overflow pipe. And the workshop steam condensate water header pipe is communicated with the condensate water tank through a pipeline. According to the utility model, steam condensate water can be pumped into the workshop hot water main pipe through the second conveying water pump after being gathered into the hot water tank, and hot water of the workshop hot water main pipe can be supplied to a heating pipe network of a workshop and equipment with low temperature requirements in the workshop for heating, and can be supplied to the heating pipe network of the workshop at the same time; the heat of the steam condensate water can be fully utilized, and the heated water flows back to the circulating water cooling tower through the circulating water return main pipe.

Description

Technical Field

[0001] This utility model relates to the field of hot water recycling technology, and in particular to a hot water recycling system. Background Technology

[0002] In the pesticide production process, high-temperature, clean, and stable steam is required from fermentation and purification to formulation. In addition, steam can also be used for equipment disinfection to ensure the hygiene and safety of pesticide production. The latent heat of vaporization released by steam-using equipment is converted into saturated condensate at almost the same temperature and pressure. Since the operating pressure of steam is greater than atmospheric pressure, the heat of condensate can reach 25% of the enthalpy of vaporization, and generally accounts for 20-30% of the total heat of steam.

[0003] In actual use, a large amount of steam condensate is often not fully utilized. Steam condensate, as softened water, also has a large amount of heat energy that can be utilized. Most pesticide companies use steam as a heat source for heating, and the condensate produced is often directly sent to the sewage treatment plant, resulting in a great waste. At the same time, tap water is still used in places that need water replenishment, such as circulating water tanks (with losses) and process water replenishment, causing unnecessary waste. To address this, a hot water recycling system is proposed to make fuller use of water resources and heat energy in the workshop and achieve the goal of energy conservation and consumption reduction. Utility Model Content

[0004] This invention provides a hot water recycling system that solves the problems mentioned in the background, and can make full use of water resources and heat energy in the workshop, thereby improving the utilization rate of resources and energy.

[0005] The solution to the above-mentioned technical problems of this utility model is as follows: A hot water recycling system includes a hot water tank, a condensate tank, a hot water cooling pool, a circulating water pool, a hot water circulating pump, a circulating water pump, a condensate cooling tower, a circulating water cooling tower, a workshop hot water main pipe, a workshop steam condensate main pipe, a buried pipe, a workshop circulating water network, a circulating water return main pipe, a No. 1 delivery pump, a No. 2 delivery pump, a circulating pipe, and a No. 2 overflow pipe. The workshop steam condensate main pipe is connected to the condensate tank through a pipe, and the No. 1 delivery pump is connected to the condensate tank through a pipe. The drive end of the No. 1 delivery pump is connected to the hot water tank and the hot water cooling pool through a pipe, and both pipes are equipped with a No. 1 water valve. The water tank is equipped with a No. 1 overflow pipe, which is connected to the hot water cooling pool. One end of the No. 2 delivery water pump is connected to the workshop's main hot water pipe, and the other end is connected to the hot water tank. The two ends of the hot water circulation pump are connected to the hot water cooling pool and the condensate cooling tower, respectively. The condensate cooling tower is connected to the hot water cooling pool via a circulation pipe. The hot water cooling pool is connected to the circulating water pool via the No. 2 overflow pipe. The circulating water return main pipe is connected to the circulating water cooling tower via a pipe. The circulating water cooling tower is connected to the circulating water pool. The circulating water pool is fixedly connected to a No. 3 overflow pipe, which is connected to a buried pipe. The two ends of the circulating water pump are connected to the circulating water pool and the workshop's circulating water network, respectively.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the condensate cooling tower and the circulating water cooling tower are placed in the top-floor equipment room of the workshop or factory or installed in the open air on the roof. The condensate tank is placed in a low position in the workshop to facilitate the collection of steam condensate.

[0008] Furthermore, the steam condensate from the hot water tank can be pumped into the workshop's main hot water pipe by the No. 2 delivery water pump to supply the workshop's heating network and equipment that does not require high temperatures in the workshop for heating, and then flow back to the circulating water cooling tower through the circulating water return main pipe.

[0009] Furthermore, the circulating water pool requires a water source with a lower temperature, which can be reduced to an acceptable range through a hot water cooling pool and a hot condensate cooling tower.

[0010] Furthermore, in cold regions, to ensure that the circulating water pool does not freeze, a heat source is needed to heat it and ensure that the water temperature is above a certain level. This can be achieved by shutting down the condensate cooling tower and stopping the cooling of the water in the hot water cooling pool, allowing the relatively warm hot water to replenish the circulating water pool. This ensures both the replenishment of the circulating water pool and prevents the circulating water temperature from becoming too low.

[0011] Furthermore, all connecting pipes within the system are equipped with heat-insulating heating jackets to prevent heat loss and avoid burns.

[0012] Furthermore, the selection of the condensate cooling tower and the circulating water cooling tower is determined based on the size of the workshop space and the heat exchange efficiency.

[0013] Furthermore, the motors for the condensate cooling tower and the circulating water cooling tower are variable frequency motors.

[0014] This utility model provides a hot water recycling system, which has the following advantages:

[0015] 1. A condensate tank is provided to collect condensate from all steam-heated equipment in the workshop. The condensate can be transferred to a large-capacity hot water tank by a No. 1 water pump. A condensate cooling tower is provided to cool the condensate. The cooled water can be returned to the hot water cooling pool through a circulation pipe. Excess water in the hot water cooling pool can also be added to the circulation pool through a No. 2 overflow pipe to make up for the loss of circulation water, so that the steam condensate can be fully collected for recycling.

[0016] 2. The temperature of the steam condensate is 80-95℃. After being collected in the hot water tank, it can be pumped into the workshop's main hot water pipe by the No. 2 delivery water pump. The hot water from the workshop's main hot water pipe can be supplied to the workshop's heating network and to heat equipment that does not require high temperatures in the workshop. At the same time, it can be supplied to the workshop's heating network, so that the heat of the steam condensate can be fully utilized. The water after heating flows back to the circulating water cooling tower through the circulating water return main pipe, which can also supply high-quality water to the circulating water pool, so that the water resources and heat energy in the workshop can be utilized more fully, achieving the goal of energy conservation and consumption reduction.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of a hot water recycling system provided in an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Hot water tank; 2. Condensate tank; 3. Hot water cooling pool; 4. Circulating water pool; 5. Hot water circulating pump; 6. Circulating water pump; 7. Condensate cooling tower; 8. Circulating water cooling tower; 9. Workshop hot water main pipe; 10. Workshop steam condensate main pipe; 11. Buried pipe; 12. Workshop circulating water network; 13. Circulating water return main pipe; 14. No. 1 delivery water pump; 15. No. 1 overflow pipe; 16. No. 1 water valve; 17. No. 2 delivery water pump; 18. Circulating pipe; 19. No. 2 overflow pipe; 20. No. 3 overflow pipe. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1As shown, a hot water recycling system includes a hot water tank 1, a condensate tank 2, a hot water cooling pool 3, a circulating water pool 4, a hot water circulating pump 5, a circulating water pump 6, a condensate cooling tower 7, a circulating water cooling tower 8, a workshop hot water main pipe 9, a workshop steam condensate main pipe 10, a buried pipe 11, a workshop circulating water network 12, a circulating water return main pipe 13, a first delivery pump 14, a second delivery pump 17, a circulation pipe 18, and a second overflow pipe 19. The workshop steam condensate main pipe 10 is connected to the condensate tank 2 via a pipe. The first delivery pump 14 is connected to the condensate tank 2 via a pipe. The drive end of the first delivery pump 14 is connected to the hot water tank 1 and the hot water cooling pool 3 via pipes. Both pipes are equipped with a first water valve 16. 1. An overflow pipe 15 is provided, which is connected to the hot water cooling pool 3. One end of the second water pump 17 is connected to the hot water main pipe 9 in the workshop, and the other end is connected to the hot water tank 1. The two ends of the hot water circulation pump 5 are connected to the hot water cooling pool 3 and the condensate cooling tower 7, respectively. The condensate cooling tower 7 is connected to the hot water cooling pool 3 via a circulation pipe 18. The hot water cooling pool 3 is connected to the circulating water pool 4 via the second overflow pipe 19. The circulating water return main pipe 13 is connected to the circulating water cooling tower 8 via a pipe. The circulating water cooling tower 8 is connected to the circulating water pool 4. The circulating water pool 4 is fixedly connected to the third overflow pipe 20, which is connected to the buried pipe 11. The two ends of the circulating water pump 6 are connected to the circulating water pool 4 and the workshop circulating water network 12, respectively.

[0026] Preferably, the condensate cooling tower 7 and the circulating water cooling tower 8 are placed in the top equipment room of the workshop or factory or installed in the open air on the roof, and the condensate tank 2 is placed in a low position in the workshop to facilitate the collection of steam condensate.

[0027] Preferably, the steam condensate from the hot water tank 1 can be pumped into the workshop hot water main pipe 9 by the No. 2 delivery water pump 17, which can supply the workshop heating network and equipment with low temperature requirements in the workshop for heating. Then, it flows back to the circulating water cooling tower 8 through the circulating water return main pipe 13.

[0028] Preferably, the circulating water tank 4 requires a water source with a lower temperature, which can be reduced to an acceptable range by using the hot water cooling tank 3 and the hot condensate cooling tower 7.

[0029] Preferably, in cold regions, to ensure that the circulating water tank 4 does not freeze, a heat source is needed to heat it and ensure that the water temperature is above 5°C. This can be achieved by shutting off the condensate cooling tower 7 and stopping the cooling of the water in the hot water cooling tank 3, allowing the relatively warm hot water to replenish the circulating water tank 4. This ensures both the replenishment of the circulating water tank 4 and prevents the circulating water temperature from becoming too low.

[0030] Preferably, all connecting pipes within the system are equipped with heat-insulating heating jackets to prevent heat loss and avoid burns.

[0031] Preferably, the selection of condensate cooling tower 7 and circulating water cooling tower 8 is determined based on the size of the workshop space and the heat exchange efficiency.

[0032] Preferably, the motors for the condensate cooling tower 7 and the circulating water cooling tower 8 are variable frequency motors.

[0033] The specific working principle and usage method of this utility model are as follows: All condensate generated by steam-heated equipment in the workshop is collected in the condensate tank 2 via the workshop steam condensate main pipe 10, and then transferred to the large-capacity hot water tank 1 via the first delivery water pump 14. The hot water tank 1 is equipped with an overflow pipe 15, allowing excess hot water to be transferred to the hot water cooling pool 3. The hot water in the hot water cooling pool 3 can be pumped into the condensate cooling tower 7 for cooling via the hot water circulation pump 5. The cooled water can then flow back to the hot water cooling pool 3 via the circulation pipe 18. Excess water in the hot water cooling pool 3 can also be replenished to the circulating water pool 4 via the second overflow pipe 19 to compensate for the loss of circulating water. If there is too much water in the circulating water tank 4, it can overflow through the No. 3 overflow pipe 20 to the buried pipe 11 and enter the plant water treatment center. The circulating water pump 6 can pump the water in the circulating water tank 4 into the workshop circulating water network 12. The temperature of the steam condensate is 80-95℃. After being collected in the hot water tank 1, it can be pumped into the workshop hot water main pipe 9 through the No. 2 delivery water pump 17. The hot water in the workshop hot water main pipe 9 can be supplied to the workshop heating network and to heat equipment that does not require high temperature in the workshop. At the same time, it can be supplied to the workshop heating network. The water after heating flows back to the circulating water cooling tower 8 through the circulating water return main pipe 13, thereby supplying the circulating water tank with high-quality water (softened water).

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A hot water recycling system comprising a hot water tank (1), a condensate tank (2), a hot water cooling pool (3), a circulating water pool (4), a hot water circulating pump (5), a circulating water pump (6), a condensate cooling tower (7), a circulating water cooling tower (8), a workshop hot water main pipe (9), a workshop steam condensate main pipe (10), a buried pipe (11), a workshop circulating water pipe network (12), a circulating water return main pipe (13), a first water delivery pump (14), a second water delivery pump (17), a circulating pipe (18), and a second overflow pipe (19), characterized in that: The workshop steam condensate water main (10) is communicated with the condensate tank (2) through a pipeline, the first water delivery pump (14) is communicated with the condensate tank (2) through a pipeline, the driving end of the first water delivery pump (14) is communicated with the hot water tank (1) and the hot water cooling pool (3) through a pipeline, and both pipelines are provided with a first water valve (16), the hot water tank (1) is provided with a first overflow pipe (15), the first overflow pipe (15) is communicated to the hot water cooling pool (3), one end of the second water delivery pump (17) is communicated with the workshop hot water main (9), and the other end is communicated with the hot water tank (1), both ends of the hot water circulating pump (5) are respectively communicated with the hot water cooling pool (3) and the condensate water cooling tower (7), the condensate water cooling tower (7) is communicated with the hot water cooling pool (3) through a circulating pipe (18), the hot water cooling pool (3) is communicated with the circulating water pool (4) through a second overflow pipe (19), the circulating water return main (13) is communicated with the circulating water cooling tower (8) through a pipeline, the circulating water cooling tower (8) is communicated with the circulating water pool (4), the circulating water pool (4) is fixedly communicated with a third overflow pipe (20), the third overflow pipe (20) is communicated with the buried pipe (11), and both ends of the circulating water pump (6) are respectively communicated with the circulating water pool (4) and the workshop circulating water pipe network (12).

2. The hot water recycling system according to claim 1, wherein The condensate water cooling tower (7) and the circulating water cooling tower (8) are placed in the top equipment room of the workshop or are installed on the roof in the open air, and the condensate tank (2) is placed at a lower position in the workshop.

3. The hot water recycling system of claim 1, wherein The steam condensate water of the hot water tank (1) can be pumped into the workshop hot water main (9) by the second water delivery pump (17) and can be supplied to the heating pipe network of the workshop and the equipment with low temperature requirements in the workshop for heating, and then is returned to the circulating water cooling tower (8) through the circulating water return main (13).

4. The hot water recycling system of claim 1, wherein The circulating water pool (4) needs a water source with a lower temperature, and the water temperature can be reduced to an acceptable range through the hot water cooling pool (3) and the condensate water cooling tower (7).

5. The hot water recycling system of claim 1, wherein, In cold regions, the circulating water pool (4) needs to be heated by a heat source to ensure that the water temperature is above 5 DEG C, and the circulating water pool (4) can be heated by closing the condensate water cooling tower (7) and stopping the cooling of the water in the hot water cooling pool (3), so that the hot water with a relatively high temperature is supplemented into the circulating water pool (4).

6. The hot water recycling system of claim 1, wherein, The communication pipelines in the system are provided with heat preservation heating sleeves.

7. The hot water recycling system of claim 1, wherein The selection of the condensate water cooling tower (7) and the circulating water cooling tower (8) is determined according to the size of the space on the scene of the workshop and the heat exchange efficiency.

8. The hot water recycling system of claim 1, wherein, The motors of the condensate water cooling tower (7) and the circulating water cooling tower (8) are variable frequency motors.

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