CN209873926U - Circulating injection water cooling system - Google Patents
Circulating injection water cooling system Download PDFInfo
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- CN209873926U CN209873926U CN201920475891.4U CN201920475891U CN209873926U CN 209873926 U CN209873926 U CN 209873926U CN 201920475891 U CN201920475891 U CN 201920475891U CN 209873926 U CN209873926 U CN 209873926U
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Abstract
The utility model discloses a circulating injection water cooling system belongs to injection water technical field. The injection water cooling system comprises a main pipeline and branch pipelines, wherein a plurality of groups of cooling points are arranged on the branch pipelines; the utility model discloses a pipeline, including pipeline, flow sensor, control assembly, pipeline. The embodiment of the utility model provides a be linked together the return circuit through the front and back end with the trunk line of lateral conduit to and formed circulation circuit between the water system for injection, alright in order to have no dead water in the assurance system existence and need not discharge the part water for injection when using the water for injection at cold point, thereby can effective control system's microorganism load, avoid taking place the contaminated risk of water for injection, and can reduce the waste of water for injection.
Description
Technical Field
The utility model relates to an injection water technical field specifically is a circulating injection water cooling system.
Background
The nineteenth requirement of GMP of the new edition of China on the circulation temperature of the injection water is that the injection water can adopt the heat preservation circulation of more than 70 ℃, so that most injection water storage and distribution systems in the industry perform the heat preservation circulation at the temperature of not less than 70 ℃.
Currently, the storage and distribution system for water for injection consists of three parts: storage system, distribution system and the point-of-use pipe network part. The injection water prepared by the water distiller enters the storage system, is conveyed into a point pipe network for a workshop through the distribution system, and is recycled back to the storage system, and water is taken from the workshop by opening a point valve. Among them, a point using water for injection at a temperature of 70 ℃ or higher is generally referred to as a high temperature point, and a point using water for injection at a temperature lower than 70 ℃ is generally referred to as a cold point. Therefore, the cold point needs a cooling system, and the temperature of the injection water which is not lower than 70 ℃ is reduced to be below 70 ℃ so as to meet the temperature requirement of the cold point on the injection water.
However, at present, the injection water cooling point cooling system in the industry at least has the problem that the pipe network at the rear end of the branch pipeline is easy to have dead water.
For example, as shown in fig. 1, a cooling system for injection water in the prior art includes a main pipeline, a branch pipeline, a cooling component and a plurality of groups of cooling points, wherein the branch pipeline is communicated with the main pipeline through the cooling component, and can cool the injection water flowing into the branch pipeline, so that the injection water flowing in the branch pipeline is lower than 70 ℃; in addition, a plurality of groups of cold points are added on the branch pipelines, so that the pressure loss of the pipe network is convenient to control, and the construction and operation costs can be reduced; however, because the system is provided with a plurality of groups of cold points, in order to prevent the injection water in the main pipeline from being lower than 70 ℃ caused by the fact that the injection water with the temperature lower than 70 ℃ in the branch pipeline flows back to the main pipeline, when the cold point at the front end of the branch pipeline is used, dead water exists in a pipe network at the rear end of the branch pipeline, and the microbial load of the system cannot be effectively controlled. In addition, if the dead water is removed by periodically discharging the tail end of the branch pipeline, the workload of system verification and the compliance challenge are increased; moreover, when injection water is used at each cold point of the system, injection water with a part higher than 70 ℃ needs to be discharged in the process of temperature rise and drop, so that the waste of the injection water can be caused.
Disclosure of Invention
An object of the utility model is to provide a circulating water for injection cooling system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
a circulating injection water cooling system comprises a main pipeline and branch pipelines communicated with the main pipeline through a cooling assembly, wherein a plurality of groups of cooling points are arranged on the branch pipelines; the tail end of the branch pipeline is provided with a flow sensor, and a temperature sensor for monitoring the tail end temperature of the main pipeline is arranged at the communication part of the tail end of the branch pipeline and the main pipeline; the flow sensor is in communication connection with the control assembly, and the control assembly automatically adjusts the opening degree of the first valve on the main pipeline.
The utility model discloses a preferred scheme, first valve be the diaphragm valve.
The utility model discloses another kind of preferred scheme, the cooling subassembly be the heat exchanger.
The utility model discloses an another kind preferred scheme, the cooling subassembly be double tube sheet shell and tube heat exchanger.
The utility model discloses an another kind preferred scheme, the cooling subassembly be linked together with refrigerated water import and refrigerated water export respectively.
The utility model discloses an another kind preferred scheme, the small transfer line on be equipped with a plurality of groups and the cold U type return bend that is corresponding with the point, the both ends and the small transfer line of U type return bend are linked together, the bottom of U type return bend is linked together with the cold point through the third valve.
The utility model discloses a another kind preferred scheme, control assembly be the PID governing valve.
The utility model discloses an another kind preferred scheme, control assembly carry out electric connection with first valve, temperature sensor and flow sensor respectively.
The embodiment of the utility model provides an above-mentioned technical scheme compares in prior art, has following technological effect:
(1) the embodiment of the utility model provides an injection water cooling system easy operation, it is through setting up the cold point of using of multiunit on the branch pipeline, alright satisfy the cold point of using of multiunit in the workshop simultaneously and be less than 70 ℃ injection water's use to can lowering system's construction and running cost.
(2) The embodiment of the utility model provides a be linked together the formation return circuit through the front and back end with the trunk line of lateral duct to set up flow sensor and set up temperature sensor in the terminal intercommunication department with the trunk line of lateral duct through the end at the lateral duct, alright pass through the aperture of control assembly automatically regulated trunk line such as PID governing valve according to flow sensor's feedback information, thereby can guarantee simultaneously that the velocity of flow of injection water in the lateral duct is not less than 0.9m/s and the trunk line circulates to the temperature of the interior injection water of injection water play and is not less than 70 ℃.
(3) In addition, because a circulation loop is formed among the branch pipeline, the main pipeline and the injection water system, the system can ensure that no dead water exists in the system and the injection water with the discharge part higher than 70 ℃ is not needed when the injection water is used at a cold point, thereby effectively controlling the microbial load of the system, avoiding the risk of polluting the injection water and reducing the waste of the injection water.
Drawings
Fig. 1 is a schematic structural diagram of an injection water cooling system including multiple cooling points in the prior art.
Fig. 2 is a schematic structural diagram of a circulating injection water cooling system according to embodiment 1.
Fig. 3 is a block diagram of a control structure of a circulating injection water cooling system according to embodiment 2.
In the figure: the system comprises a main pipeline 1, an injection water inlet 2, an injection water outlet 3, branch pipelines 4, a cold point 5, a cooling component 6, a first valve 7, a second valve 8, a third valve 9, a fourth valve 10, a temperature sensor 11, a flow sensor 12, a chilled water inlet 13, a chilled water outlet 14 and a bent pipe 15-U.
Detailed Description
The following specific embodiments are specifically and clearly described in the technical solutions of the present application with reference to the drawings provided in the present specification. The drawings in the specification are for clarity of presentation of the technical solutions of the present application, and do not represent shapes or sizes in actual production or use, and reference numerals of the drawings are not limited to the claims involved.
In addition, in the description of the present application, terms used should be construed broadly, and specific meanings of the terms may be understood by those skilled in the art according to actual situations. For example, the term "mounted" as used in this application may be defined as a fixed mounting that is removable or a fixed mounting that is not removable, etc.; the terms "set" and "provided" as used herein may be defined as either a contact or a non-contact arrangement, etc.; the terms "connected" and "coupled" as used herein may be defined as mechanically, electrically, or both fixedly and removably coupled; the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; the terms "front", "rear" and "end" are used with reference to the direction of water flow; all the terms of orientation used are used with reference to the drawings or are based on the direction defined by the actual situation and the common general knowledge.
Example 1
Referring to the attached figure 2, the embodiment provides a circulating injection water cooling system, which comprises a main pipeline 1 and a branch pipeline 4, wherein two ends of the main pipeline 1 are respectively communicated with an injection water inlet 2 and an injection water outlet 3, and the injection water inlet 2 and the injection water outlet 3 are both communicated with an injection water storage system. The main pipeline 1 is provided with a first valve 7, and the first valve 7 is an adjustable diaphragm valve. The front end of the branch pipeline 4 is communicated with the front end of the main pipeline 1 through a cooling assembly 6, and is provided with a second valve 8, and the second valve 8 is a manual diaphragm valve; in addition, the tail end of the branch pipeline 4 is communicated with the tail end of the main pipeline 1, and a fourth valve 10 is arranged, wherein the fourth valve 10 is also a manual diaphragm valve. Wherein, first valve 7 sets up between the intercommunication department of 4 front ends of branch pipes and trunk line 1 and the intercommunication department of 4 end of branch pipes and trunk line 1 to guarantee to control the velocity of flow of injection water in trunk line 1 and the branch pipe 4 through the aperture of adjusting first valve 7.
Further, the branch pipeline 4 on be equipped with a plurality of groups cold with some 5 and a plurality of groups with cold with some 5 corresponding U type return bend 15, the both ends of U type return bend 15 are linked together with branch pipeline 4, the bottom of U type return bend 15 is through being linked together with cold with some 5, cold with some 5 on be equipped with third valve 9, third valve 9 is pneumatic diaphragm valve. By selectively opening and closing the third valve 9 on each group of cold spots 5, the requirement that a single group of cold spots 5 or a plurality of groups of cold spots 5 in a workshop use water for injection at the temperature of lower than 70 ℃ at the same time can be met, and therefore the construction and operation cost of the system can be reduced.
Further, a flow sensor 12 is arranged at the tail end of the branch pipeline 4, and a temperature sensor 11 is arranged at the communication position of the tail end of the branch pipeline 4 and the main pipeline 1; the temperature sensor 11 can monitor the temperature of the end of the main pipeline 1, and the flow sensor 12 is connected with the control component in a communication mode. The flow sensor 12 is a common flow meter sensor in the prior art, the flow and the flow speed of the injection water in the branch pipeline 4 can be monitored through the arrangement of the flow sensor 12, and the monitored information can be fed back to the control assembly; the temperature sensor 11 is a common temperature sensor in the prior art, and the temperature of the injection water at the mixing point of the tail end of the branch pipeline 4 and the main pipeline 1 can be monitored in real time through the arrangement of the temperature sensor 11; control assembly can choose current common controller for use, it carries out communication connection with first valve 7 on the trunk line 1, setting through control assembly, can handle the analysis to flow sensor 12 feedback flow and velocity of flow information, and according to the aperture of handling the first valve 7 of analysis's result automatically regulated, thereby can be when guaranteeing that the velocity of flow of injection water satisfies the requirement in trunk line 1 and the small transfer line 4, can also guarantee that the temperature after injection water in the small transfer line 4 and the injection water in the trunk line 1 mix can not be less than 70 ℃.
Further, in order to improve the cooling efficiency of the system on the injection water, the cooling assembly 6 is a double-tube plate tubular heat exchanger in the prior art, and is respectively communicated with a chilled water inlet 13 and a chilled water outlet 14; the chilled water inlet 13 and the chilled water outlet 14 are both communicated with a chilled water storage system; through the setting of cooling subassembly 6, can make trunk line 1 flow in the injection water rapid cooling who is higher than 70 ℃ in the small transfer line 4 to the injection water that is less than 70 ℃ to can satisfy each group in workshop cold with the user demand of point 5 to injection water.
The cooling system for water for injection provided by this embodiment, when each group of cold consumption point 5 does not use water for injection, does not let in chilled water to cooling module 6, and opens first valve 7, second valve 8 and fourth valve 10 simultaneously, and closes third valve 9 on each group of cold consumption point 5, alright make the water for injection that is higher than 70 ℃ shunt to in the branch pipeline 4 from trunk line 1, and by branch pipeline 4 circulation reflux to trunk line 1 in, thereby can realize the circulation of the water for injection that is higher than 70 ℃. In addition, when one or more groups of cold spots 5 need to use the injection water with the temperature lower than 70 ℃, the first valve 7, the second valve 8 and the fourth valve 10 are opened, and meanwhile, the chilled water is introduced into the cooling component 6; then, under the coordination of the control component, the temperature sensor 11 and the flow sensor 12, the opening degree of the first valve 7 can be automatically adjusted, so that the flow rate of the injection water in the branch pipeline 4 meets the specified requirement, and the injection water mixed by the branch pipeline 4 and the main pipeline 1 is not lower than 70 ℃, and then the third valve 9 on the corresponding cold application point 5 can be opened to use the injection water at the temperature lower than 70 ℃.
Example 2
Referring to fig. 2-3, in order to facilitate accurate control of the opening degree of the first valve 7, the embodiment is modified based on embodiment 1, specifically, the control component is a PID adjusting valve, and the PID adjusting valve is electrically connected to the first valve 7 and the flow sensor 12 respectively. By using the PID control valve, information such as the flow rate and the flow velocity fed back by the flow sensor 12 can be processed and analyzed, and the first valve 7 can be automatically and accurately adjusted according to the result of the processing and analysis. For example, when the flow sensor 12 detects that the flow rate of the injection water in the branch pipe 4 is lower than 0.9m/s, the opening degree of the first valve 7 can be automatically adjusted and reduced through the PID adjusting valve, so that the flow rate of the injection water in the branch pipe 4 is larger than 0.9 m/s; meanwhile, the PID adjusting valve is used for adjusting the opening degree of the first valve 7 according to the temperature monitored by the temperature sensor 11 while reducing the opening degree of the first valve 7, so as to prevent the temperature of the mixed injection water at the tail end of the branch pipe 4 and the injection water in the main pipe 1 from being lower than 70 ℃.
To sum up, the utility model discloses an injection water cooling system easy operation that above-mentioned embodiment provided, it is through setting up the cold point 5 of using of multiunit on branch pipeline 4, alright satisfy the use of the cold point 5 of using of multiunit to being less than 70 ℃ injection water in the workshop simultaneously to can lowering system's construction and running cost.
The utility model discloses an above-mentioned embodiment is still linked together the loop formation through the front and back end with the small transfer line 4 and trunk line 1 to set up flow sensor 12 and set up temperature sensor 11 in the terminal intercommunication department with trunk line 1 of small transfer line 4 through the end at small transfer line 4, alright according to flow sensor 12's feedback information through the aperture of control assembly automatically regulated trunk line 1 such as PID governing valve 7, thereby can guarantee simultaneously that the velocity of flow of injection water is not less than 0.9m/s in the small transfer line 4 and trunk line 1 circulates the temperature of the injection water to the injection water in the water export 3 and is not less than 70 ℃.
In addition, because a circulation loop is formed among the branch pipeline 4, the main pipeline 1 and the injection water system, no dead water exists in the system, and the injection water with the discharge part higher than 70 ℃ is not needed to be discharged when the injection water is used at the cold point 5, so that the microbial load of the system can be effectively controlled, the risk of pollution of the injection water is avoided, and the waste of the injection water can be reduced.
It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.
In addition, the technical solutions of the present application are not limited to the above-described embodiments, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments that can be understood by those skilled in the art may be formed.
Claims (8)
1. A circulating injection water cooling system comprises a main pipeline (1) and branch pipelines (4) communicated with the main pipeline (1) through cooling components (6), wherein a plurality of groups of cold points (5) are arranged on the branch pipelines (4), and the circulating injection water cooling system is characterized in that a flow sensor (12) is arranged at the tail end of each branch pipeline (4), and a temperature sensor (11) used for monitoring the tail end temperature of the main pipeline (1) is arranged at the communication position of the tail end of each branch pipeline (4) and the main pipeline (1); the flow sensor (12) is in communication connection with the control assembly, and the control assembly automatically adjusts the opening degree of the first valve (7) on the main pipeline (1).
2. A circulating injection water cooling system according to claim 1, wherein the first valve (7) is a diaphragm valve.
3. A circulating injection water cooling system according to claim 1, wherein the cooling module (6) is a heat exchanger.
4. A circulating injection water cooling system according to claim 3, wherein the cooling module (6) is a double tube-sheet tube-and-tube heat exchanger.
5. A circulating injection water cooling system according to claim 4, wherein the cooling module (6) is respectively in communication with the chilled water inlet (13) and the chilled water outlet (14).
6. A circulating injection water cooling system according to claim 1, wherein a plurality of sets of U-shaped bent pipes (15) corresponding to the cold spots (5) are arranged on the branch pipes (4), two ends of each U-shaped bent pipe (15) are communicated with the branch pipes (4), and the bottoms of the U-shaped bent pipes (15) are communicated with the cold spots (5) through third valves (9).
7. The circulating injection water cooling system of claim 1, wherein the control unit is a PID control valve.
8. A circulating injection water cooling system according to claim 7, wherein the control unit is electrically connected to the first valve (7) and the flow sensor (12), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475891.4U CN209873926U (en) | 2019-04-10 | 2019-04-10 | Circulating injection water cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475891.4U CN209873926U (en) | 2019-04-10 | 2019-04-10 | Circulating injection water cooling system |
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| CN209873926U true CN209873926U (en) | 2019-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868861A (en) * | 2019-04-10 | 2019-06-11 | 上海凯贤流体科技有限公司 | A kind of circulating water for injection cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868861A (en) * | 2019-04-10 | 2019-06-11 | 上海凯贤流体科技有限公司 | A kind of circulating water for injection cooling system |
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