CN217953978U - Hydrophobic sampling system of heat supply network - Google Patents
Hydrophobic sampling system of heat supply network Download PDFInfo
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- CN217953978U CN217953978U CN202221338337.XU CN202221338337U CN217953978U CN 217953978 U CN217953978 U CN 217953978U CN 202221338337 U CN202221338337 U CN 202221338337U CN 217953978 U CN217953978 U CN 217953978U
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Abstract
The utility model provides a hydrophobic sampling system of heat supply network, includes the sample pipeline of being connected with the hydrophobic pipeline of heat supply network heater, sets gradually sample valve, cooler on the sample pipeline, and the sample pipeline behind the cooler divide into two the tunnel, sets up the stop valve on the sample pipeline of one kind, sets up first bypass valve, booster pump, manometer and second bypass valve on another sample pipeline. The two sampling pipelines are combined and then sequentially provided with an instrument sampling valve and an analysis instrument. Under different operating conditions of the unit, real-time online monitoring of the drainage water quality of the heat supply network is realized by switching two sampling pipelines, and under the operating condition that the load of the unit is lower and the drainage of the heat supply network is in a micro-negative pressure state, online measurement of the drainage water quality of the heat supply network is completed, real-time monitoring of the drainage water quality is ensured, and the water quality supervision and operation control level is improved; the whole set of heat supply network drainage sampling system equipment is fixed on the drainage sampling frame, so that the installation time is saved, and the site installation space is saved.
Description
Technical Field
The utility model relates to a power plant heating system soda sample technical field, concretely relates to hydrophobic sampling system of heat supply network.
Background
The heat supply network drainage system is an important component of a heat supply network initial station heat supply system, the quality of drainage of the heat supply network is influenced by the safety and the stability of the unit after the drainage of the heat supply network is circulated to boiler feed water, therefore, a drainage sampling point is arranged on a drainage pipeline of each heat supply network heater, the quality of drainage of the heat supply network of each heat supply network heater is monitored, and the quality of drainage returned to a thermodynamic system is guaranteed to be qualified.
At present, the conventional design scheme of the heat supply network drainage sampling system is that a hole is formed in a heat supply network drainage pipeline, the sampling pipeline is directly connected to a sampling frame, the heat supply network drainage flows to the drainage sampling frame by self pressure, and the drainage sampling frame is arranged in a heat supply network head station nearby. However, under the working condition that the load of the unit set is low, the steam inlet quantity of the heat supply network heater is insufficient, so that the heat supply network heater is in a micro-negative pressure state, a heat supply network drainage pipeline connected with the heat supply network heater is also in a micro-negative pressure state, and heat supply network drainage cannot flow out of the drainage pipeline and cannot be sent to a heat supply network drainage sampling frame for water quality online monitoring.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that can satisfy the hydrophobic water quality monitoring of heat supply network when normal operating mode, can satisfy again under the lower operating mode of unit load, when the heat supply network is hydrophobic to be in little negative pressure state, accomplish the on-line measuring of the hydrophobic quality of water of heat supply network, guarantee the real-time supervision of hydrophobic quality of water, improve water quality supervision and operation control level. In order to solve the problems, a heat supply network drainage sampling system is provided.
The purpose of the utility model is realized with the following mode:
a heat supply network drainage sampling system comprises a sampling system and a drainage sampling frame, wherein the sampling system is fixed in the drainage sampling frame, the sampling system is connected with a drainage pipeline of a hot water heater through a sampling pipeline, and the sampling system comprises a sampling valve, a cooler, a stop valve, an instrument sampling valve and an analysis instrument which are sequentially connected through the sampling pipeline); and two ends of the stop valve are connected in parallel with a bypass system, and the bypass system is sequentially connected with a first bypass valve, a booster pump and a second bypass valve through a sampling pipeline.
The cooler is connected with a water inlet stop valve through a cooling water pipeline, and the water inlet stop valve is connected with a cooling water inlet through the cooling water pipeline; the cooler is connected with a water outlet stop valve through a cooling water pipeline, and the water outlet stop valve is connected with a cooling water outlet through a cooling water pipeline.
And a local pressure gauge is arranged on a pipeline between the booster pump and the second bypass valve.
The pipe diameter scope of sample pipeline is DN10~ DN20, and the pipeline material is 304 stainless steel.
The cooling coil in the cooler is made of stainless steel tubes.
And a cooling water inlet and a cooling water outlet of the cooler are connected to a heat supply network first station softened water system or an industrial cooling water system, and the flow of the cooling water is 600 to 800ml/min, so that the sample hydrophobic water can be cooled to be below 28 to 35 ℃.
The number of the sampling systems is N, N is a natural number larger than 1, and the N sampling systems are respectively connected with the N drainage pipelines of the heat supply network heaters.
Compared with the prior art, the utility model can meet the requirements that under the working condition of lower load of the unit, when the drainage of the heat supply network is in a micro negative pressure state, the on-line measurement of the drainage water quality of the heat supply network is completed, the real-time monitoring of the drainage water quality is ensured, and the water quality supervision and operation control level is improved; the whole set of heat supply network drainage sampling system equipment is fixed on the drainage sampling frame, so that the installation time is saved and the field installation space is saved.
Drawings
Fig. 1 is a schematic diagram of a heat grid hydrophobic sampling system.
Wherein: the device comprises a heat supply network heater drainage pipeline, a sampling valve, a cooler, a stop valve, a first bypass valve, a booster pump, a pressure gauge, a second bypass valve, a meter sampling valve, a meter 11, a drainage ditch 12, a water inlet stop valve 13, a water outlet stop valve 14, a cooling water pipeline 15, a cooling water inlet 16, a cooling water outlet 17 and a drainage sampling frame 18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Therefore, the following detailed description of the embodiments of the present invention, which is provided in the accompanying drawings, is not intended to limit the scope of the invention, which is claimed, but is merely representative of selected embodiments of the invention, and all other embodiments that can be obtained by one of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The heat supply network drainage sampling system as shown in fig. 1 comprises a sampling system and a drainage sampling frame 18, wherein the sampling system is fixed in the drainage sampling frame 18 and is connected with a hot water heater drainage pipeline 1 through a sampling pipeline 2, and the sampling system comprises a sampling valve 3, a cooler 4, a stop valve 5, an instrument sampling valve 10 and an analysis instrument 11 which are sequentially connected through the sampling pipeline 2; the stop valve 5 both ends connect in parallel has bypass system, bypass system connect gradually first bypass valve 6, booster pump 7 and second bypass valve 9 through sample pipeline 2, sample valve 3, stop valve 5, first bypass valve 6 and second bypass valve 9 are manual stop valves.
The cooler 4 is connected with a water inlet stop valve 13 through a cooling water pipeline 15, and the water inlet stop valve 13 is connected with a cooling water inlet 16 through the cooling water pipeline 15; the cooler 4 is connected with a water outlet stop valve 14 through a cooling water pipeline 15, the water outlet stop valve 14 is connected with a cooling water outlet 17 through the cooling water pipeline 15, and a cooling coil inside the cooler 4 is made of stainless steel pipes. And a cooling water inlet 16 and a cooling water outlet 17 of the cooler 4 are connected to a heat supply network first station softened water system or an industrial cooling water system, and the flow of cooling water is 600 to 800ml/min, so that sample hydrophobic water can be cooled to be below 28 to 35 ℃.
And an on-site pressure gauge 8 is arranged on a pipeline between the booster pump 7 and the second bypass valve 9, the precision of the on-site pressure gauge 8 is 1.5 grade, and the range is 0-0.6 MPa.
The pipe diameter scope of sampling pipe 2 is DN10~ DN20, and the pipeline material is 304 stainless steel.
The power supply of the booster pump 7 and the analysis instrument 11 is taken from a power supply loop in the power supply cabinet nearby.
The number of the sampling systems is N, N is a natural number larger than 1, and the N detection systems are respectively connected with the N heat supply network heater drainage pipelines.
And the cooling water inlets and the cooling water outlets of the N sampling systems are connected in parallel.
The working principle of the system is as follows:
before the drainage sampling, the cooling water inlet stop valve 16 and the cooling water outlet stop valve 17 are opened, and the cooling water is filled in the cooler 4 through the cooling water pipeline 15. When the device is in a normal operation condition, the sampling valve 3 is opened, the stop valve 5 is opened, the first bypass valve 6 and the second bypass valve 9 are closed, the booster pump 7 is closed, and the drainage of the heat supply network passes through the sampling pipeline 2, passes through the sampling valve 3, the cooler 4, the stop valve 5, the instrument sampling valve 10 and the analysis instrument 11, and carries out real-time online monitoring on the drainage water quality; under the working condition that the load of the unit set is low, when the drain water of the heat supply network is in a micro negative pressure state, the sampling valve 3 is opened, the first bypass valve 6 and the second bypass valve 9 are opened, the booster pump 7 is opened, the stop valve 5 is closed, the drain water of the heat supply network is pumped out by the booster pump, the drain water of the heat supply network passes through the sampling pipeline 2, passes through the sampling valve 3, the cooler 4, the first bypass valve 6, the booster pump 7, the second bypass valve 9 and the instrument sampling valve 10 to the analysis instrument 11, the quality of the drain water is monitored on line in real time, and the detected water is discharged into the drainage ditch 12 through a pipeline.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations of the technical features should be considered as the range described in the present specification, and when there is a mutual contradiction or cannot be realized, the combinations of the technical features should be considered as not being present, and are not within the scope of the present invention. Also, it will be apparent to those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the present invention.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (7)
1. A hydrophobic sampling system of heat supply network which characterized in that: the sampling system is fixed in the hydrophobic sampling frame (18), the sampling system is connected with a hot water heater hydrophobic pipeline (1) through a sampling pipeline (2), and the sampling system comprises a sampling valve (3), a cooler (4), a stop valve (5), an instrument sampling valve (10) and an analysis instrument (11) which are sequentially connected through the sampling pipeline (2); stop valve (5) both ends parallelly connected have bypass system, bypass system connect gradually first bypass valve (6), booster pump (7) and second bypass valve (9) through sample pipeline (2).
2. The heat grid hydrophobic sampling system of claim 1, wherein: the cooler (4) is connected with a water inlet stop valve (13) through a cooling water pipeline (15), and the water inlet stop valve (13) is connected with a cooling water inlet (16) through the cooling water pipeline (15); the cooler (4) is connected with a water outlet stop valve (14) through a cooling water pipeline (15), and the water outlet stop valve (14) is connected with a cooling water outlet (17) through the cooling water pipeline (15).
3. The heat grid hydrophobic sampling system of claim 1, wherein: and an on-site pressure gauge (8) is arranged on a pipeline between the booster pump (7) and the second bypass valve (9).
4. The heat grid hydrophobic sampling system of claim 1, wherein: the pipe diameter scope of sampling pipe way (2) is DN10~ DN20, and the pipeline material is 304 stainless steel.
5. A heat network hydrophobic sampling system, as defined in claim 1, wherein: and a cooling coil pipe in the cooler (4) is a stainless steel pipe.
6. A heat network hydrophobic sampling system, as defined in claim 1, wherein: and a cooling water inlet (16) and a cooling water outlet (17) of the cooler (4) are connected to a heat supply network head station softened water system or an industrial cooling water system, and the flow rate of cooling water is 600 to 800ml/min, so that sample drainage water can be cooled to below 28 to 35 ℃.
7. The heat grid hydrophobic sampling system of claim 1, wherein: the number of the sampling systems is N, N is a natural number larger than 1, and the N sampling systems are respectively connected with N heat supply network heater drainage pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221338337.XU CN217953978U (en) | 2022-05-31 | 2022-05-31 | Hydrophobic sampling system of heat supply network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221338337.XU CN217953978U (en) | 2022-05-31 | 2022-05-31 | Hydrophobic sampling system of heat supply network |
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| Publication Number | Publication Date |
|---|---|
| CN217953978U true CN217953978U (en) | 2022-12-02 |
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| CN202221338337.XU Active CN217953978U (en) | 2022-05-31 | 2022-05-31 | Hydrophobic sampling system of heat supply network |
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| CN (1) | CN217953978U (en) |
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2022
- 2022-05-31 CN CN202221338337.XU patent/CN217953978U/en active Active
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