Cooling water system for process

Abstract

The cooling water system for the technology comprises a refrigerating unit, a water return set and a water supply set, the water return set is connected with the input end of the refrigerating unit, the water supply set is connected with the output end of the refrigerating unit, and a temperature control flow adjusting set is arranged between the output end of the water return set and the water supply set. And the output water flow of the water supply group meets the water temperature requirement of process cooling water supply by combining with the water flow of the water supply group.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling, and more specifically to a process cooling water system. Background Art

[0002] With the popularization of automation in manufacturing enterprises, production lines are gradually weakening the reliance on the work intensity of operators to support production, and the continuous operation time of various equipment has been greatly extended. Among them, various large-scale host equipment has a large heat generation, and usually requires a specially configured process cooling water system to water-cool the equipment to maintain the efficient and stable long-term operation of various host equipment. There are various high-speed rotating equipment and high-frequency vibration equipment in the production lines of various manufacturing enterprises, which have huge heat generation. They rely on the "one-to-one" process cooling water equipment configured on each production line for cooling. The configuration of its cooling water preparation system is relatively simple, and the energy efficiency index is relatively low, which easily leads to high energy consumption costs. Therefore, it is of great significance to effectively cool down the equipment on various production lines, optimize the equipment refrigeration control, and achieve energy saving and consumption reduction.

[0003] The existing patent, publication number: CN215765511 U, a process cooling water energy-saving utilization system, proposes a process cooling water energy-saving utilization system, arranges a constant pressure make-up water device on the upper part of the cooling water supply device, saves head through gravitational potential energy, reduces the pressure of the process cooling water pump group to achieve energy-saving effect, and reduces energy consumption by seasonal switching of plate heat exchangers. For example, when working in winter, only the first process cooling water plate heat exchanger is started, and the cooling water entering the first process cooling water plate heat exchanger through the cooling water return water supply device is heat exchanged with the workshop return water entering the first process cooling water plate heat exchanger through the constant pressure make-up water device to provide the production workshop with cooling water with a lower temperature. For example, when working in summer, only the second process cooling water plate heat exchanger is started, and the chilled water entering the second process cooling water plate heat exchanger through the chilled water return water supply device is heat exchanged with the workshop return water entering the second process cooling water plate heat exchanger through the constant pressure make-up water device to provide the production workshop with cooling water with a lower temperature.

[0004] However, the plate heat exchanger itself has high manufacturing requirements and high cost. Due to the small gap between the heat transfer surfaces, the narrow channels between the plates, and the unevenness on the heat transfer surfaces, the pressure loss per unit length is large and it is easy to get clogged, resulting in high energy consumption and high cost.

[0005] In view of this, in order to solve the energy consumption problem of the existing process cooling water system, the utility model provides a process cooling water system which is cost-saving and low in energy consumption. Utility Model Content

[0006] The utility model aims to provide a process cooling water system to solve the energy consumption problem and the high cost problem of the existing process cooling water system.

[0007] A process cooling water system comprises a refrigeration unit 10, a return water group and a water supply group, wherein the return water group is connected to the input end of the refrigeration unit 10, and the water supply group is connected to the output end of the refrigeration unit 10. A temperature control flow regulating group 20 is provided between the output end of the return water group and the water supply group. By controlling the water flow of the return water group and combining it with the water flow of the water supply group, the output water flow of the water supply group can meet the water temperature requirement of the process cooling water supply.

[0008] Furthermore, the return water group includes a return water pipe 31, a descaling system group 32, a water pump system group 33, and a standby water pump group 34 in sequence. The water pump system group 33 is connected in parallel with the standby water pump system group 33 and in series with the descaling system group 32. The water pump system group 33 has the same composition structure as the standby water pump system group 33. The input end of the return water group is connected to the process cooling water return pipe 35, and the output end of the return water group is connected to the input end of the refrigeration unit 10.

[0009] Furthermore, the water temperature of the process cooling water return pipe 35 is about 23°C.

[0010] Furthermore, the descaling system group 32 is a parallel pipeline consisting of two branches, one branch is provided with a descaling instrument 321, which filters impurities such as iron filings in the cooling return water of the process, and butterfly valves are provided at both ends of the descaling instrument 321. A butterfly valve is provided on the other branch, which is in a closed state during normal operation. When the descaling instrument 321 needs to be replaced and repaired, the butterfly valves at both ends of the descaling instrument 321 are closed, and the butterfly valve on the branch is opened.

[0011] Furthermore, the water pump system group 33 includes a butterfly valve, a first pressure gauge 331, a first filter 332, a second pressure gauge 333, a drain valve, a rubber flexible joint, a reducer, a water pump 334, a reducer, a rubber flexible joint, a third pressure gauge 335, a check valve 336, and a butterfly valve in sequence.

[0012] Furthermore, the first pressure gauge 331 and the second pressure gauge 333 detect the pressure difference at both ends of the first filter 332, so as to facilitate timely replacement of the first filter 332. Symmetrical reducers and rubber joints are provided at both ends of the water pump 334. The reducers are used to connect the interface of the water pump 334 to the return pipe 31. The rubber joint is used to reduce the vibration of the water pump 334 during operation, so that the pipe is relatively stable. The third pressure gauge 335 is installed at the water outlet end of the water pump 334 to measure the head of the water pump 334. When the water pump system group 33 and the standby water pump group 34 are enabled at the same time, the check valve 336 is used to prevent water from flowing back.

[0013] Furthermore, the input end of the refrigeration unit 10 is provided with a rubber flexible joint, a drain valve, a fourth pressure gauge 11, a first temperature sensor 12, a second filter 13, and a butterfly valve in sequence, and the output end of the refrigeration unit 10 is provided with a rubber flexible joint, a drain pipe, a fifth pressure gauge 14, a second temperature sensor 15, and a butterfly valve in sequence. When the refrigeration unit 10 vibrates during operation, the rubber flexible joints at both ends reduce the vibration, making the pipeline relatively stable.

[0014] Furthermore, the normal outlet water temperature of the refrigeration unit 10 is about 7°C.

[0015] Furthermore, the water supply group includes a water supply pipe 41 , the output end of the refrigeration unit 10 is connected to the water supply pipe 41 , and the output end of the water supply pipe 41 is connected to a process cooling water supply pipe 42 .

[0016] Furthermore, the water temperature of the process cooling water supply pipe 42 is about 18°C.

[0017] Furthermore, the input end of the temperature control flow regulating group 20 is connected to the output end of the return water group, and the output end of the temperature control flow regulating group 20 is connected to the output end of the water supply group. The temperature control flow regulating group 20 contains two branches. The main branch is provided with a temperature control flow regulating valve 21. Both ends of the temperature control flow regulating valve 21 are provided with a reducer and a butterfly valve. A butterfly valve is provided on the side branch, which is in a closed state during normal operation. When the temperature control flow regulating valve 21 needs to be replaced and repaired, the butterfly valves at both ends of the temperature control flow regulating valve 21 are closed, and the butterfly valve on the side branch is opened.

[0018] Furthermore, the temperature control flow regulating group 20 controls the flow of water at a temperature of about 23°C in the return water pipe 31, and mixes it with the water at a temperature of about 7°C in the water supply pipe 41, so that the water temperature of the output process cooling water supply pipe 42 is about 18°C.

[0019] Furthermore, a pressure regulating group 50 is provided between the output end of the water supply group and the input end of the water return group. When the number of users at the water supply end is small, the pressure regulating group 50 is opened to perform water reflux and control the reflux amount.

[0020] Furthermore, the pressure regulating group 50 includes two branches, wherein an electric valve 51 is provided on the main branch, and both ends of the electric valve 51 are provided with a reducer and a butterfly valve. A pressure sensor group 52 is provided on the main branch where the electric valve 51 is located. The pressure sensor group 52 consists of two pressure sensors, which are used to measure the pressure difference on both sides of the electric valve 51 and use the electric valve to adjust the water flow. A butterfly valve is provided on the other side branch, which is in a closed state during normal operation. When the electric valve 51 needs to be replaced and repaired, the butterfly valves at both ends of the electric valve 51 are closed and the butterfly valve on the side branch is opened.

[0021] Beneficial effects of the utility model: The utility model proposes a process cooling water system, including a refrigeration unit 10, a return water group and a water supply group, the return water group is connected to the input end of the refrigeration unit 10, the water supply group is connected to the output end of the refrigeration unit 10, and a temperature control flow regulating group 20 is provided between the output end of the return water group and the water supply group. By controlling the water flow of the return water group and combining it with the water flow of the water supply group, the output water flow of the water supply group can meet the water temperature requirement of the process cooling water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the process cooling water system of this application.

[0023] Figure 2 This is a schematic diagram of the structure of the water pump system group of the process cooling water system of this application.

[0024] Main component symbols

[0025] Refrigeration Unit 10 Temperature control flow regulation group 20 Return pipe 31 Descaling system kit 32 Water pump system group 33 Spare water pump set 34 Process cooling water return pipe 35 Descaling instruments 321 First pressure gauge 331 First filter 332 Second pressure gauge 333 Water pump 334 The third pressure gauge 335 Check valve 336 Fourth pressure gauge 11 First temperature sensor 12 Second filter 13 Fifth pressure gauge 14 Second temperature sensor 15 Water supply pipeline 41 Process cooling water supply pipe 42 Temperature Control Flow Control Valve 21 Pressure regulating group 50 Electric valve 51 Pressure sensor set 52

[0026] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0029] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, it is a schematic diagram of the overall structure of the process cooling water system of this application; Figure 2 The figure shows a schematic diagram of the structure of the water pump system group of the process cooling water system of the present application.

[0032] A process cooling water system comprises a refrigeration unit 10, a return water group and a water supply group, wherein the return water group is connected to the input end of the refrigeration unit 10, and the water supply group is connected to the output end of the refrigeration unit 10. A temperature control flow regulating group 20 is provided between the output end of the return water group and the water supply group. By controlling the water flow of the return water group and combining it with the water flow of the water supply group, the output water flow of the water supply group can meet the water temperature requirement of the process cooling water supply.

[0033] In some embodiments, the return water group includes a return water pipe 31, a descaling system group 32, a water pump system group 33, and a standby water pump group 34 in sequence. The water pump system group 33 is connected in parallel with the standby water pump system group 33 and in series with the descaling system group 32. The water pump system group 33 has the same composition structure as the standby water pump system group 33. The input end of the return water group is connected to the process cooling water return pipe 35, and the output end of the return water group is connected to the input end of the refrigeration unit 10.

[0034] In some embodiments, the water temperature of the process cooling water return pipe 35 is about 23°C.

[0035] In some embodiments, the descaling system group 32 is a parallel pipeline consisting of two branches, one branch is provided with a descaling instrument 321, which filters impurities such as iron filings in the cooling return water of the process, and butterfly valves are provided at both ends of the descaling instrument 321. A butterfly valve is provided on the other branch, which is in a closed state during normal operation. When the descaling instrument 321 needs to be replaced and repaired, the butterfly valves at both ends of the descaling instrument 321 are closed, and the butterfly valve on the branch is opened.

[0036] In some embodiments, the water pump system group 33 includes a butterfly valve, a first pressure gauge 331, a first filter 332, a second pressure gauge 333, a drain valve, a rubber flexible joint, a reducer, a water pump 334, a reducer, a rubber flexible joint, a third pressure gauge 335, a check valve 336, and a butterfly valve in sequence.

[0037] The first pressure gauge 331 and the second pressure gauge 333 detect the pressure difference at both ends of the first filter 332, so as to facilitate timely replacement of the first filter 332. Symmetrical reducers and rubber joints are provided at both ends of the water pump 334. The reducers are used to connect the interface of the water pump 334 to the return pipe 31. The rubber joint is used to reduce the vibration of the water pump 334 during operation, so that the pipe is relatively stable. The third pressure gauge 335 is installed at the water outlet end of the water pump 334 to measure the head of the water pump 334. When the water pump system group 33 and the standby water pump group 34 are enabled at the same time, the check valve 336 is used to prevent water from flowing back.

[0038] The input end of the refrigeration unit 10 is provided with a rubber flexible joint, a discharge valve, a fourth pressure gauge 11, a first temperature sensor 12, a second filter 13, and a butterfly valve in sequence, and the output end of the refrigeration unit 10 is provided with a rubber flexible joint, a discharge pipe, a fifth pressure gauge 14, a second temperature sensor 15, and a butterfly valve in sequence. When the refrigeration unit 10 vibrates during operation, the rubber flexible joints at both ends reduce the vibration, making the pipeline relatively stable.

[0039] In some embodiments, the normal outlet water temperature of the refrigeration unit 10 is about 7°C.

[0040] The water supply group includes a water supply pipeline 41 . The output end of the refrigeration unit 10 is connected to the water supply pipeline 41 . The output end of the water supply pipeline 41 is connected to a process cooling water supply pipe 42 .

[0041] In some embodiments, the water temperature of the process cooling water supply pipe 42 is about 18°C.

[0042] The input end of the temperature control flow regulating group 20 is connected to the output end of the return water group, and the output end of the temperature control flow regulating group 20 is connected to the output end of the water supply group. The temperature control flow regulating group 20 contains two branches. A temperature control flow regulating valve 21 is provided on the main branch. Both ends of the temperature control flow regulating valve 21 are provided with a reducer and a butterfly valve. A butterfly valve is provided on the side branch, which is in a closed state during normal operation. When the temperature control flow regulating valve 21 needs to be replaced and repaired, the butterfly valves at both ends of the temperature control flow regulating valve 21 are closed, and the butterfly valve on the side branch is opened.

[0043] In some embodiments, the temperature control flow regulation group 20 controls the water flow rate at a water temperature of about 23°C in the return water pipe 31, mixes it with the water at a water temperature of about 7°C in the water supply pipe 41, so that the water temperature of the output process cooling water supply pipe 42 is about 18°C.

[0044] In some embodiments, a pressure regulating group 50 is provided between the output end of the water supply group and the input end of the water return group. When the number of users at the water supply end is small, the pressure regulating group 50 is opened to perform water reflux and control the reflux amount.

[0045] The pressure regulating group 50 includes two branches, wherein an electric valve 51 is provided on the main branch, and reducers and butterfly valves are provided at both ends of the electric valve 51. A pressure sensor group 52 is provided on the main branch where the electric valve 51 is located. The pressure sensor group 52 consists of two pressure sensors, which are used to measure the pressure difference on both sides of the electric valve 51 and use the electric valve to adjust the water flow. A butterfly valve is provided on the other branch, which is in a closed state during normal operation. When the electric valve 51 needs to be replaced and repaired, the butterfly valves at both ends of the electric valve 51 are closed and the butterfly valve on the branch is opened.

[0046] Beneficial effects of the utility model: The utility model proposes a process cooling water system, including a refrigeration unit 10, a return water group and a water supply group, the return water group is connected to the input end of the refrigeration unit 10, the water supply group is connected to the output end of the refrigeration unit 10, and a temperature control flow regulating group 20 is provided between the output end of the return water group and the water supply group. By controlling the water flow of the return water group and combining it with the water flow of the water supply group, the output water flow of the water supply group can meet the water temperature requirement of the process cooling water supply.

[0047] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. A process cooling water system, comprising a refrigeration unit (10), a return water group and a water supply group, wherein the return water group is connected to the input end of the refrigeration unit (10), and the water supply group is connected to the output end of the refrigeration unit (10), characterized in that: A temperature control flow regulating group (20) is provided between the output end of the return water group and the water supply group, which controls the water flow of the return water group and combines it with the water flow of the water supply group so that the output water flow of the water supply group meets the water temperature requirement of the process cooling water supply.

2. The process cooling water system according to claim 1, characterized in that: The return water group comprises a return water pipeline (31), a descaling system group (32), a water pump system group (33), and a standby water pump group (34) in sequence. The water pump system group (33) is connected in parallel with the standby water pump system group (33) and in series with the descaling system group (32). The water pump system group (33) and the standby water pump system group (33) have the same composition structure. The input end of the return water group is connected to the process cooling water return pipe (35), and the output end of the return water group is connected to the input end of the refrigeration unit (10).

3. The process cooling water system according to claim 2, characterized in that: The descaling system group (32) is a parallel pipeline consisting of two branches. A descaling device (321) is provided on one branch to filter iron filings impurities in the process cooling return water. Butterfly valves are provided at both ends of the descaling device (321). A butterfly valve is provided on the other branch and is in a closed state during normal operation. When the descaling device (321) needs to be replaced and repaired, the butterfly valves at both ends of the descaling device (321) are closed and the butterfly valve on the branch is opened.

4. The process cooling water system according to claim 2, characterized in that: The water pump system group (33) comprises in sequence a butterfly valve, a first pressure gauge (331), a first filter (332), a second pressure gauge (333), a discharge valve, a rubber flexible joint, a reducer, a water pump (334), a third pressure gauge (335), a check valve (336), and a butterfly valve.

5. The process cooling water system according to claim 4, characterized in that: The first pressure gauge (331) and the second pressure gauge (333) detect the pressure difference between the two ends of the first filter (332), so as to facilitate timely replacement of the first filter (332). Symmetrical reducers and rubber joints are provided at both ends of the water pump (334). The reducers are used to connect the interface of the water pump (334) to the return water pipeline (31). The rubber joint is used to reduce the vibration of the water pump (334) during operation, so that the pipeline is relatively stable. The third pressure gauge (335) is installed at the water outlet of the water pump (334) and is used to measure the head of the water pump (334). When the water pump system group (33) and the standby water pump group (34) are activated at the same time, the check valve (336) is used to prevent water from flowing back.

6. The process cooling water system according to claim 1, characterized in that: The input end of the refrigeration unit (10) is provided with a rubber flexible joint, a discharge valve, a fourth pressure gauge (11), a first temperature sensor (12), a second filter (13), and a butterfly valve in sequence, and the output end of the refrigeration unit (10) is provided with a rubber flexible joint, a discharge pipe, a fifth pressure gauge (14), a second temperature sensor (15), and a butterfly valve in sequence. When the refrigeration unit (10) vibrates during operation, the rubber flexible joints at both ends reduce the vibration, so that the pipeline is relatively stable.

7. The process cooling water system according to claim 1, characterized in that: The water supply group comprises a water supply pipeline (41), the output end of the refrigeration unit (10) is connected to the water supply pipeline (41), and the output end of the water supply pipeline (41) is connected to a process cooling water supply pipe (42).

8. The process cooling water system according to claim 1, characterized in that: The input end of the temperature control flow regulating group (20) is connected to the output end of the return water group, and the output end of the temperature control flow regulating group (20) is connected to the output end of the water supply group. The temperature control flow regulating group (20) contains two branches. The main branch is provided with a temperature control flow regulating valve (21). Both ends of the temperature control flow regulating valve (21) are provided with a reducer and a butterfly valve. A butterfly valve is provided on the side branch and is in a closed state during normal operation. When the temperature control flow regulating valve (21) needs to be replaced and repaired, the butterfly valves at both ends of the temperature control flow regulating valve (21) are closed and the butterfly valve on the side branch is opened.

9. The process cooling water system according to claim 1, characterized in that: A pressure regulating group (50) is provided between the output end of the water supply group and the input end of the water return group. When the number of users at the water supply end is small, the pressure regulating group (50) is opened to perform water return to control the return amount.

10. The process cooling water system according to claim 9, characterized in that: The pressure regulating group (50) comprises two branches, wherein an electric valve (51) is provided on the main branch, and both ends of the electric valve (51) are provided with a reducer and a butterfly valve. A pressure sensor group (52) is provided on the main branch where the electric valve (51) is located, and the pressure sensor group (52) is composed of two pressure sensors and is used to measure the pressure difference on both sides of the electric valve (51) and adjust the water flow rate by using the electric valve. A butterfly valve is provided on the other side branch and is in a closed state during normal operation. When the electric valve (51) needs to be replaced and repaired, the butterfly valves at both ends of the electric valve (51) are closed and the butterfly valve on the side branch is opened.

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