Chemical wastewater buffer tank with cooling function

By introducing spiral and coiled heat pipes and a refrigeration circulation system into the chemical wastewater buffer tank, the problem of insufficient cooling of the chemical wastewater buffer tank was solved, and rapid cooling of the wastewater and stable operation of the equipment were achieved.

CN224241787UActive Publication Date: 2026-05-15ZIBO WANHUA MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIBO WANHUA MASCH EQUIP CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing chemical wastewater buffer tanks lack effective cooling devices, causing high-temperature wastewater to enter subsequent treatment equipment, affecting microbial activity and equipment lifespan.

Method used

Design a chemical wastewater buffer tank with cooling function. The tank uses spiral and coiled heat-conducting pipes in close contact with the inner liner, combined with a refrigeration cycle system including a plate evaporator, condenser, compressor, dryer filter and expansion valve to achieve rapid cooling.

Benefits of technology

It effectively reduces the temperature of chemical wastewater, prevents harmful reactions, ensures the safety and stability of treatment equipment, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224241787U_ABST
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Abstract

The utility model discloses a chemical wastewater buffer tank with a cooling function, and belongs to the technical field of buffer tanks. The chemical wastewater buffer tank with the cooling function comprises a main body and a cooling mechanism, the main body comprises a buffer tank, an inner container is installed at the top end in the buffer tank, a heat absorption pipe is installed at the bottom end in the inner container, a first heat conduction pipe is installed in the heat absorption pipe, the outer side of the inner container is sleeved with a second heat conduction pipe, and a second heat conduction pipe is installed at the bottom end of the inner container; two ends of the first heat-conducting pipe are respectively connected with one ends of the second heat-conducting pipe and the third heat-conducting pipe; the cooling mechanism comprises a plate-type evaporator, the plate-type evaporator is arranged on one side of the buffer tank, a heating medium outlet of the plate-type evaporator is sleeved with a circulating pump, the output end of the circulating pump is sleeved with a first connecting pipe, and a heating medium inlet of the plate-type evaporator is sleeved with a second connecting pipe; one end of the first connecting pipe and one end of the second connecting pipe are respectively connected with the other end of the second heat conduction pipe and the other end of the third heat conduction pipe.
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Description

Technical Field

[0001] This utility model relates to the field of buffer tank technology, specifically a chemical wastewater buffer tank with cooling function. Background Technology

[0002] The main function of chemical wastewater buffer tanks is to temporarily store wastewater and balance the time difference and flow fluctuation between wastewater generation and treatment.

[0003] Based on the above, the inventors have discovered the following problems: Most existing chemical wastewater buffer tanks only have buffer storage functions and lack effective cooling devices, making it impossible to cool down high-temperature wastewater in a timely manner. The generated chemical wastewater often has a high temperature. If it directly enters the subsequent treatment equipment, the high-temperature wastewater may inhibit the activity of microorganisms in the treatment equipment, affecting the biochemical treatment effect; it may also cause the treatment equipment to age and be damaged due to high temperature, reducing the service life of the equipment.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a chemical wastewater buffer tank with cooling function in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a chemical wastewater buffer tank with a cooling function, so as to solve the problem mentioned in the background art that most existing chemical wastewater buffer tanks only have a buffer storage function and lack an effective cooling device.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A chemical wastewater buffer tank with cooling function includes a main body and a cooling mechanism. The main body includes a buffer tank, with an inner liner installed at the top of the buffer tank. A heat-absorbing pipe is installed at the bottom of the inner liner, and a first heat-conducting pipe is installed inside the heat-absorbing pipe. A second heat-conducting pipe is sleeved on the outside of the inner liner and installed at the bottom of the inner liner. The two ends of the first heat-conducting pipe are respectively connected to one end of the second heat-conducting pipe and one end of the third heat-conducting pipe. The cooling mechanism includes a plate evaporator, which is disposed on one side of the buffer tank. A circulating pump is fitted at the heat medium outlet of the plate evaporator, and a first connecting pipe is fitted at the output end of the circulating pump. A second connecting pipe is fitted at the heat medium inlet of the plate evaporator, and one end of the first connecting pipe and the second connecting pipe are respectively connected to the other ends of the second heat-conducting pipe and the third heat-conducting pipe.

[0008] Furthermore, a housing is installed on one side of the plate evaporator, and a condenser is embedded on one side of the housing.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the condenser is embedded on one side of the casing, which condenses the high-temperature and high-pressure gaseous refrigerant discharged by the compressor into a liquid state, releases heat, provides a key heat dissipation link for the refrigeration cycle, and ensures the continuous and stable operation of the refrigeration system.

[0010] Furthermore, a compressor is installed on one side of the bottom of the housing, and the output end of the compressor is connected to the input end of the condenser through a pipe.

[0011] The beneficial effect of adopting the above-mentioned further scheme is that the compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas, increasing the pressure and temperature of the refrigerant, providing conditions for the condensation process of the condenser, and is the core of the refrigeration cycle, ensuring refrigeration efficiency.

[0012] Furthermore, a dryer filter is installed on the other side of the bottom of the housing, and the output end of the condenser is connected to the input end of the dryer filter through a pipe.

[0013] The beneficial effects of adopting the above-mentioned further solutions are that the dryer filter removes moisture and impurities from the refrigerant, prevents ice blockage or blockage in the refrigeration system, protects the expansion valve and plate evaporator from corrosion, extends the service life of the refrigeration system, and ensures stable refrigeration performance.

[0014] Furthermore, an expansion valve is fixedly installed on the inner side of the housing, and the output end of the dryer filter is connected to one end of the expansion valve through a pipe.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the expansion valve throttles and reduces the pressure of the liquid refrigerant, causing it to rapidly vaporize and absorb heat in the plate evaporator to achieve a cooling effect; at the same time, it controls the refrigerant flow rate, adjusts the cooling capacity of the refrigeration system, and adapts to the cooling requirements under different operating conditions.

[0016] Furthermore, one end of the expansion valve is connected to the refrigerant inlet of the plate evaporator via a pipe, and the refrigerant outlet of the plate evaporator is connected to the input end of the compressor via a pipe.

[0017] The beneficial effects of adopting the above-mentioned further scheme are that the compressor compresses the refrigerant, the condenser condenses it, the dryer filter purifies it, the expansion valve reduces the pressure, the plate evaporator vaporizes and absorbs heat, and the gaseous refrigerant after absorbing heat returns to the compressor, continuously carrying away the heat of the heat transfer medium and ensuring the efficient operation of the cooling mechanism.

[0018] Furthermore, the first and second heat pipes are both spiral-shaped, and the third heat pipe is coiled.

[0019] The beneficial effects of adopting the above-mentioned further scheme are that the spiral-shaped first heat pipe, the second heat pipe, and the coiled third heat pipe greatly increase the contact area with the inner liner, extend the heat exchange path, enhance the heat transfer efficiency, and enable the chemical wastewater to cool down rapidly.

[0020] Furthermore, the inner side of the first heat-conducting pipe abuts against the outer wall of the inner liner, the outer side of the second heat-conducting pipe abuts against the inner wall of the heat-absorbing pipe, and the upper end of the third heat-conducting pipe abuts against the bottom end of the inner liner.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the first heat pipe, the second heat pipe, and the third heat pipe are closely connected to the inner tank and the heat absorption pipe, respectively, reducing the heat transfer gap and ensuring that the heat of the chemical wastewater can be efficiently transferred to the heat medium in the first heat pipe, the second heat pipe, and the third heat pipe, thereby improving the overall performance of the cooling system.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: In the main body of this chemical wastewater buffer tank with cooling function, the spiral first heat-conducting pipe, the second heat-conducting pipe, and the coiled third heat-conducting pipe increase the heat exchange area. By closely contacting the inner tank and the heat-absorbing pipe, the heat of the chemical wastewater is efficiently transferred. The circulating pump of the cooling mechanism drives the heat medium to circulate between the heat-conducting pipe and the plate evaporator. The refrigeration cycle composed of the compressor, condenser, dryer filter, and expansion valve carries away the heat of the heat medium, realizing rapid cooling of the chemical wastewater in the inner tank of the buffer tank, preventing the wastewater from causing harmful reactions due to high temperature, and ensuring the safety and stability of the treatment. The compressor compresses the refrigerant, the condenser condenses, the dryer filter purifies, the expansion valve reduces the pressure, and the plate evaporator vaporizes and absorbs heat. The gaseous refrigerant after absorbing heat returns to the compressor, continuously carrying away the heat of the heat medium and ensuring the efficient operation of the cooling mechanism. The spiral first heat-conducting pipe, the second heat-conducting pipe, and the coiled third heat-conducting pipe greatly increase the contact area with the inner tank, extend the heat exchange path, enhance the heat transfer efficiency, and enable the chemical wastewater to cool down rapidly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a chemical wastewater buffer tank with cooling function disclosed in an embodiment of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the cooling mechanism of the chemical wastewater buffer tank with cooling function disclosed in an embodiment of the present invention. Figure 1 ;

[0025] Figure 3 This is a three-dimensional structural diagram of the cooling mechanism of the chemical wastewater buffer tank with cooling function disclosed in an embodiment of the present invention. Figure 2 ;

[0026] Figure 4This is a three-dimensional cross-sectional structural diagram of a chemical wastewater buffer tank with cooling function disclosed in an embodiment of the present utility model.

[0027] Figure 5 This is a three-dimensional structural diagram of the first heat-conducting pipe, the second heat-conducting pipe, and the third heat-conducting pipe of the chemical wastewater buffer tank with cooling function disclosed in an embodiment of this utility model.

[0028] In the diagram: 1. Main body; 101. Buffer tank; 102. Heat absorption pipe; 103. First heat conduction pipe; 104. Second heat conduction pipe; 105. Third heat conduction pipe; 106. Inner liner; 2. Cooling mechanism; 201. Plate evaporator; 203. Condenser; 204. Compressor; 205. Expansion valve; 206. Dryer filter; 207. Second connecting pipe; 208. Circulation pump; 209. First connecting pipe; 210. Housing. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5This utility model provides a technical solution: a chemical wastewater buffer tank with cooling function, comprising a main body 1 and a cooling mechanism 2. The main body 1 includes a buffer tank 101, with an inner liner 106 installed at the top of the buffer tank 101, a heat absorption pipe 102 installed at the bottom of the inner liner 106, a first heat conduction pipe 103 installed inside the heat absorption pipe 102, a second heat conduction pipe 104 sleeved on the outside of the inner liner 106, and a second heat conduction pipe 104 installed at the bottom of the inner liner 106. The two ends of the first heat conduction pipe 103 are respectively connected to one end of the second heat conduction pipe 104 and one end of the third heat conduction pipe 105. The cooling mechanism 2 includes a plate evaporator 201, which is disposed on one side of the buffer tank 101. A circulation pump 208 is fitted at the heat medium outlet of the plate evaporator 201, and a first connecting pipe 209 is fitted at the output end of the circulation pump 208. The heat medium inlet of the evaporator 201 is fitted with a second connecting pipe 207. One end of the first connecting pipe 209 and the second connecting pipe 207 are respectively connected to the other end of the second heat-conducting pipe 104 and the third heat-conducting pipe 105. In the main body 1, the spiral first heat-conducting pipe 103, the second heat-conducting pipe 104 and the coiled third heat-conducting pipe 105 increase the heat exchange area. By tightly contacting the inner tank 106 and the heat absorption pipe 102, the heat of the chemical wastewater is efficiently transferred. The circulation pump 208 of the cooling mechanism 2 drives the heat medium to circulate between the heat-conducting pipe and the plate evaporator 201. The refrigeration cycle composed of the compressor 204, condenser 203, dryer filter 206 and expansion valve 205 carries away the heat of the heat medium, realizing the rapid cooling of the chemical wastewater in the inner tank 106 of the buffer tank 101, preventing the wastewater from undergoing harmful reactions due to high temperature, and ensuring the safety and stability of the treatment.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5A housing 210 is installed on one side of the plate evaporator 201. A condenser 203 is embedded on one side of the housing 210. A compressor 204 is installed on one side of the bottom interior of the housing 210. The output end of the compressor 204 is connected to the input end of the condenser 203 via a pipe. A dryer filter 206 is installed on the other side of the bottom interior of the housing 210. The output end of the condenser 203 is connected to the input end of the dryer filter 206 via a pipe. An expansion valve 205 is fixedly installed inside the housing 210. The output end of the dryer filter 206 is connected to one end of the expansion valve 205 via a pipe. One end of the expansion valve 205 is connected to the refrigerant inlet of the plate evaporator 201 via a pipe. The refrigerant outlet of the plate evaporator 201 is connected to the input end of the compressor 204 via a pipe. The condenser 203, embedded on one side of the housing 210, condenses the high-temperature, high-pressure gaseous refrigerant discharged from the compressor 204 into a liquid state, releasing heat and providing a key heat dissipation link for the refrigeration cycle, ensuring the continuous and stable operation of the refrigeration system. In a constant-cycle operation, compressor 204 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas, increasing the refrigerant's pressure and temperature to provide conditions for the condensation process in condenser 203. It is the core power source of the refrigeration cycle, ensuring refrigeration efficiency. Dryer filter 206 removes moisture and impurities from the refrigerant, preventing ice blockage or clogging in the refrigeration system, protecting expansion valve 205 and plate evaporator 201 from corrosion, extending the service life of the refrigeration system, and ensuring stable refrigeration performance. Expansion valve 205 throttles and reduces the pressure of liquid refrigerant, causing it to rapidly vaporize and absorb heat in plate evaporator 201, achieving a cooling effect. Simultaneously, it controls the refrigerant flow rate, adjusting the refrigeration capacity of the system to adapt to cooling requirements under different operating conditions. Compressor 204 compresses the refrigerant, condenser 203 condenses it, dryer filter 206 purifies it, expansion valve 205 reduces the pressure, and plate evaporator 201 vaporizes and absorbs heat. The gaseous refrigerant, after absorbing heat, returns to compressor 204, continuously carrying away heat from the heat transfer medium, ensuring efficient operation of cooling mechanism 2.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5The first heat pipe 103 and the second heat pipe 104 are both spiral-shaped, and the third heat pipe 105 is coiled. The inner side of the first heat pipe 103 abuts against the outer wall of the inner liner 106, the outer side of the second heat pipe 104 abuts against the inner wall of the heat absorber 102, and the upper end of the third heat pipe 105 abuts against the bottom end of the inner liner 106. The spiral-shaped first heat pipe 103, the second heat pipe 104 and the coiled third heat pipe 105 significantly increase the contact area with the inner liner 106, extend the heat exchange path, enhance the heat transfer efficiency, and enable the chemical wastewater to cool down quickly. The first heat pipe 103, the second heat pipe 104 and the third heat pipe 105 are respectively in close contact with the inner liner 106 and the heat absorber 102, reducing the heat transfer gap and ensuring that the heat of the chemical wastewater can be efficiently transferred to the heat medium in the first heat pipe 103, the second heat pipe 104 and the third heat pipe 105, thereby improving the overall performance of the cooling system.

[0035] Specifically, the working principle of this type of chemical wastewater buffer tank with cooling function is as follows: During use, chemical wastewater enters the inner liner 106 of the buffer tank 101. The spiral-shaped first heat-conducting pipe 103, the second heat-conducting pipe 104, and the coiled third heat-conducting pipe 105, due to their large contact area with the wastewater, quickly absorb heat. The inner side of the first heat-conducting pipe 103 abuts against the outer wall of the inner liner 106, the outer side of the second heat-conducting pipe 104 abuts against the inner wall of the heat-absorbing pipe 102, and the upper end of the third heat-conducting pipe 105 abuts against the bottom end of the inner liner 106, ensuring efficient heat transfer to the heat transfer medium inside the pipes. In the cooling mechanism 2, the compressor 204 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas, which is then sent into the cooling system. The condenser 203 condenses the refrigerant into a liquid state. The dryer filter 206 removes moisture and impurities from the liquid refrigerant. After being throttled and depressurized by the expansion valve 205, the low-temperature and low-pressure liquid refrigerant enters the plate evaporator 201 to vaporize and absorb heat, carrying away the heat of the heat medium entering the plate evaporator 201. The gaseous refrigerant, after absorbing heat, returns to the compressor 204. At the same time, the circulation pump 208 drives the heat medium that has finished heat exchange inside the plate evaporator 201 to circulate inside the first heat pipe 103, the second heat pipe 104, and the third heat pipe 105, continuously carrying away the heat of the wastewater in the inner tank 106, thereby achieving continuous cooling of the chemical wastewater and ensuring the safe and stable treatment of wastewater.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A chemical wastewater buffer tank with cooling function, characterized in that, The system includes a main body (1) and a cooling mechanism (2). The main body (1) includes a buffer tank (101). An inner liner (106) is installed at the top of the buffer tank (101). A heat-absorbing pipe (102) is installed at the bottom of the inner liner (106). A first heat-conducting pipe (103) is installed inside the heat-absorbing pipe (102). A second heat-conducting pipe (104) is sleeved on the outside of the inner liner (106). The bottom of the inner liner (106) is also fitted with the second heat-conducting pipe (104). The two ends of the first heat-conducting pipe (103) are connected to the second heat-conducting pipe (104) and the third heat-conducting pipe (104) respectively. 5) One end is connected; the cooling mechanism (2) includes a plate evaporator (201), the plate evaporator (201) is disposed on one side of the buffer tank (101), the heat medium outlet of the plate evaporator (201) is fitted with a circulating pump (208), the output end of the circulating pump (208) is fitted with a first connecting pipe (209), the heat medium inlet of the plate evaporator (201) is fitted with a second connecting pipe (207), one end of the first connecting pipe (209) and the second connecting pipe (207) are respectively connected to the other end of the second heat-conducting pipe (104) and the third heat-conducting pipe (105).

2. A chemical wastewater buffer tank with cooling function according to claim 1, characterized in that, A housing (210) is installed on one side of the plate evaporator (201), and a condenser (203) is embedded on one side of the housing (210).

3. A chemical wastewater buffer tank with cooling function according to claim 2, characterized in that, A compressor (204) is installed on one side of the bottom of the housing (210), and the output end of the compressor (204) is connected to the input end of the condenser (203) through a pipe.

4. A chemical wastewater buffer tank with cooling function according to claim 3, characterized in that, A dryer filter (206) is installed on the other side of the bottom of the housing (210), and the output end of the condenser (203) is connected to the input end of the dryer filter (206) through a pipe.

5. A chemical wastewater buffer tank with cooling function according to claim 4, characterized in that, An expansion valve (205) is fixedly installed on the inner side of the housing (210), and the output end of the dryer filter (206) is connected to one end of the expansion valve (205) through a pipe.

6. A chemical wastewater buffer tank with cooling function according to claim 5, characterized in that, One end of the expansion valve (205) is connected to the refrigerant inlet of the plate evaporator (201) via a pipe, and the refrigerant outlet of the plate evaporator (201) is connected to the input end of the compressor (204) via a pipe.

7. A chemical wastewater buffer tank with cooling function according to claim 1, characterized in that, The first heat pipe (103) and the second heat pipe (104) are both spiral-shaped, and the third heat pipe (105) is coiled.

8. A chemical wastewater buffer tank with cooling function according to claim 1, characterized in that, The inner side of the first heat-conducting pipe (103) abuts against the outer wall of the inner liner (106), the outer side of the second heat-conducting pipe (104) abuts against the inner wall of the heat-absorbing pipe (102), and the upper end of the third heat-conducting pipe (105) abuts against the bottom end of the inner liner (106).