CN211575976U - Stable heat exchanger unit resistance monitoring devices - Google Patents

Stable heat exchanger unit resistance monitoring devices Download PDF

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Publication number
CN211575976U
CN211575976U CN201922399144.XU CN201922399144U CN211575976U CN 211575976 U CN211575976 U CN 211575976U CN 201922399144 U CN201922399144 U CN 201922399144U CN 211575976 U CN211575976 U CN 211575976U
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water
heat exchanger
valve
exchanger unit
inlet
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高远
王嬖伟
李国田
宋伟
王北平
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Heilongjiang Zhongneng Control Engineering Co ltd
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Heilongjiang Zhongneng Control Engineering Co ltd
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Abstract

The utility model provides a stable heat exchanger unit resistance monitoring devices, belongs to plate heat exchanger unit technical equipment application technical field, the utility model discloses a solve plate heat exchanger unit different at different time quantum operating condition, calculate the problem of the actual resistance of hardly confirming plate heat exchanger unit through the theory. The outlet end of the flow monitoring pipe group is communicated with the inlet end of the circulating system, the outlet end of the circulating system is communicated with the inlet end of the steady flow tank group, the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group are respectively communicated with the water supply end outlet and the water supply end inlet of the unit to be detected through the shutoff valve, a pressure transmitter is arranged between the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group, the tap water system is divided into two branches which are communicated with the inlet end of the circulating system, and a water supplementing system and a pressure testing system. The utility model discloses a stable heat exchanger unit resistance monitoring devices can accurately confirm the resistance loss under the different operating condition of plate heat exchanger unit.

Description

Stable heat exchanger unit resistance monitoring devices
Technical Field
The utility model relates to a monitoring devices especially relates to a stable heat exchanger unit resistance monitoring devices, belongs to plate heat exchanger unit technical equipment application technical field.
Background
The plate type heat exchange unit is a heat exchange device commonly used in the heat supply and cold supply industries at present, has the advantages of high efficiency, energy conservation, intellectualization, automation and the like, and is widely applied to systems such as urban central heat supply, air conditioning systems, domestic hot water and the like. The plate heat exchanger unit mainly comprises a plate heat exchanger, an intelligent temperature control device, an intelligent electric control device, a water pump, a valve, an instrument, a sensor and the like. The plate heat exchanger unit has compact structure, dense arrangement of water pumps, valves, elbows, tees, reducing diameters and the like, different working states in different time periods, and difficult determination of the actual resistance of the plate heat exchanger unit through theoretical calculation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stable heat exchanger unit resistance monitoring devices to it is different at the different time quantum operating condition to solve plate heat exchanger unit, calculates the problem of hardly confirming plate heat exchanger unit's actual resistance through the theory.
A stable resistance monitoring device of a heat exchange unit comprises a PLC control cabinet, a tap water system, a circulating system, a water supplementing system, a flow monitoring pipe group, a shutoff valve, a steady flow tank group, a pressure transmitter, a pressure test system and a water recovery system;
the outlet end of the flow monitoring pipe group is communicated with the inlet end of the circulating system, the outlet end of the circulating system is communicated with the inlet end of the steady flow tank group, the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group are respectively communicated with the water supply end outlet and the water supply end inlet of the unit to be detected through a shutoff valve, a pressure transmitter is arranged between the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group, the running water system is divided into two branches to be communicated with the inlet end of the circulating system, a water supplementing system and a pressure test system are respectively arranged on the two branches, the outlet end and the inlet end of the reclaimed water system are respectively communicated with the running water system and the drain outlet of the unit to be detected, and the PLC control cabinet is respectively electrically connected with the.
Preferably: the tap water system comprises an inlet shutoff valve, a filter, an electromagnetic valve, a remote water meter, a float valve and a water tank, wherein the inlet of the water tank is communicated with a municipal tap water pipeline, and the inlet shutoff valve, the filter, the electromagnetic valve, the remote water meter and the float valve are sequentially arranged at the inlet of the water tank.
Preferably: the circulating system comprises a plurality of groups of parallel circulating pipelines, and each group of circulating pipelines is sequentially provided with a check valve, a flexible connection and a water pump.
Preferably: the water supplementing system comprises a water supplementing pipeline, a water inlet shutoff valve, a water supplementing pump, a check valve, an expansion tank and a water outlet shutoff valve, wherein the water inlet shutoff valve, the water supplementing pump, the check valve, the expansion tank and the water outlet shutoff valve are sequentially arranged on the water supplementing pipeline.
Preferably: the flow monitoring pipe group comprises a plurality of flow monitoring pipelines, and each flow monitoring pipeline is sequentially provided with a flowmeter, an electric regulating valve and a shut-off valve.
Preferably: the pressure test system comprises an inlet shutoff valve, an outlet shutoff valve, a check valve, a water replenishing pump, a high-pressure plunger pump and an electrical measurement pressure relief valve, wherein the water replenishing pump, the high-pressure plunger pump and the electrical measurement pressure relief valve are respectively arranged in parallel through three pipelines, and the three pipelines are respectively provided with the inlet shutoff valve, the outlet shutoff valve and the check valve.
Preferably: the recovery water system includes recovery tank and immersible pump, and recovery tank's entry end and the outlet intercommunication of examining the unit of examining, the immersible pump setting is in recovery tank, the exit end and the running water system intercommunication of immersible pump.
The utility model discloses compare with current product and have following effect:
the utility model provides a stable heat exchanger unit resistance monitoring device, which can accurately determine the resistance loss of a plate type heat exchanger unit under different working states;
the steady flow tank group reduces the pressure fluctuation of the water flow at the outlet of the water pump by adjusting the steam-water ratio in the tank body and matching with the baffle plate in the pipe body, and stabilizes the water flow in the device and the plate heat exchanger unit to be tested;
the device is matched with a circulating system to provide power for water flow in the device; the start and stop of the water replenishing pump are controlled, and the water replenishing system is matched for replenishing water and keeping pressure for the device.
Drawings
Fig. 1 is a schematic structural diagram of a stable heat exchanger unit resistance monitoring device.
In the figure, 1-a PLC control cabinet, 3-a tap water system, 4-a circulating system, 5-a water replenishing system, 6-a flow meter, 7-an electric regulating valve, 8-a shut-off valve, 9-a steady flow tank group, 10-a pressure transmitter, 12-a pressure test system and 13-a reclaimed water system.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the stable resistance monitoring device for a heat exchanger unit disclosed in this embodiment includes a PLC control cabinet 1, a tap water system 3, a circulation system 4, a water charging system 5, a flow monitoring pipe set, a shutoff valve 8, a steady flow tank set 9, a pressure transmitter 10, a pressure test system 12, and a recovered water system 13;
the outlet end of the flow monitoring pipe group is communicated with the inlet end of the circulating system 4, the outlet end of the circulating system 4 is communicated with the inlet end of the steady flow tank group 9, the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group 9 are respectively communicated with the water supply end outlet and the water supply end inlet of the unit to be detected through a shutoff valve 8, and a pressure transmitter 10 is arranged between the inlet end of the flow monitoring pipe group and the outlet end of the steady flow tank group 9, the tap water system 3 is divided into two branches to be communicated with the inlet end of the circulating system 4, the water supplementing system 5 and the pressure test system 12 are respectively arranged on the two branches, the outlet end and the inlet end of the recovered water system 13 are respectively communicated with the tap water system 3 and the drain opening of the unit to be detected, and the PLC control cabinet 1 is respectively electrically connected with the tap water system 3, the circulating system 4, the water supplementing system 5, the flow monitoring pipe group, the pressure transmitter 10, the pressure test system 12 and the recovered water system.
Further: the tap water system 3 comprises an inlet shutoff valve, a filter, an electromagnetic valve, a remote water meter, a float valve and a water tank, wherein the inlet of the water tank is communicated with a municipal tap water pipeline, and the inlet shutoff valve, the filter, the electromagnetic valve, the remote water meter and the float valve are sequentially arranged at the inlet of the water tank.
Further: the circulating system 4 comprises a plurality of groups of parallel circulating pipelines, and each group of circulating pipelines is sequentially provided with a check valve, a flexible connection and a water pump.
Further: the water supplementing system 5 comprises a water supplementing pipeline, a water inlet shutoff valve, a water supplementing pump, a check valve, an expansion tank and a water outlet shutoff valve, wherein the water inlet shutoff valve, the water supplementing pump, the check valve, the expansion tank and the water outlet shutoff valve are sequentially arranged on the water supplementing pipeline.
Further: the flow monitoring pipe group comprises a plurality of flow monitoring pipelines, and each flow monitoring pipeline is sequentially provided with a flowmeter 6, an electric regulating valve 7 and a shut-off valve.
Further: the pressure test system 12 comprises an inlet shutoff valve, an outlet shutoff valve, a check valve, a water replenishing pump, a high-pressure plunger pump and an electrical measurement pressure relief valve, wherein the water replenishing pump, the high-pressure plunger pump and the electrical measurement pressure relief valve are respectively arranged in parallel through three pipelines, and the three pipelines are respectively provided with the inlet shutoff valve, the outlet shutoff valve and the check valve.
Further: the recycled water system 13 comprises a recycled water tank and a submersible pump, the inlet end of the recycled water tank is communicated with a water outlet of the unit to be detected, the submersible pump is arranged in the recycled water tank, and the outlet end of the submersible pump is communicated with a tap water system.
Through the hose among this technical scheme with the board-like heat exchanger unit treat measure the volume end and be connected with this device, wait to examine through water charging system and examine the unit and this device moisturizing level pressure, select assorted circulating pump and flowmeter according to the specification of examining the unit, carry out the simulation condition experiment to it, finally detect board-like heat exchanger unit actual work resistance.
The PLC control cabinet monitors the flowmeter, the electric regulating valve and the pressure transmitter. The flow of the device is adjusted by controlling the electric regulating valve through collecting the data of the flow meter, and the data of the pressure transmitter is collected for calculation after the flow is stable.
The electric control cabinet controls the working frequency of a circulating pump in the circulating system and is matched with the circulating system to provide power for water flow in the device; the start and stop of the water replenishing pump are controlled, and the water replenishing system is matched for replenishing water and keeping pressure for the device.
The water tank-tap water system is connected with municipal water to provide water storage for the device. The system comprises an inlet shutoff valve, a filter, an electromagnetic valve, a remote water meter, a ball float valve, a water tank and other equipment, and the connection mode is shown in a flow chart, so that the water quality of the whole system is cleaned and measured.
The circulating system provides power for water flow during the experiment of the device. The system comprises a check valve, a flexible connection and water pump equipment, and the connection mode is shown in a flow chart. The system is formed by connecting a plurality of groups of circulating pumps in parallel, and a plurality of circulating pumps can be started simultaneously to meet the flow requirement when necessary.
The water replenishing system is used for replenishing water and keeping pressure for the device. The system comprises an inlet and outlet closing valve, a water replenishing pump, a check valve and expansion tank equipment, and the connection mode is shown in a flow chart. The expansion tank in the system stabilizes the fluctuation effect of water pressure and reduces the pressure fluctuation in the operation process of the device.
The steady flow tank group reduces the water flow pressure fluctuation at the outlet of the water pump by adjusting the steam-water ratio in the tank body and matching with the partition plate in the pipe body, and stabilizes the water flow in the device and the plate heat exchanger unit to be tested.
And (3) steady flow tank group: the medium flows into the tank, and the turbulence of the medium is reduced by adjusting the volume of the air in the reserved tank and matching the air with the partition plate in the tank body, so that the flow state of the medium is stable.
Pressure test system: a pressure test system is added in the device, and the pressure test can be directly carried out on the unit to be tested. The system comprises an inlet and outlet closing valve, a check valve, a water replenishing pump and high-pressure plunger pump equipment, and the connection mode is shown in a flow chart. The water replenishing pump and the high-pressure plunger pump are connected in parallel in the system, so that the water replenishing time can be reduced. An electric measurement pressure relief valve is arranged in the system, and the whole equipment and the unit to be detected are protected against overpressure.
A water recovery system: a recovery water tank is added in the device, and a submersible pump and the like are used for recovering the medium in the device and the unit to be detected and are reused. During the use with the sluicing hose with this device and wait to examine the sluicing kneck of unit and be connected, make the device and wait to examine the unit in the rivers flow back to the recovery water tank through liquid level difference in height, the medium passes through the immersible pump in the recovery water tank and retrieves to the water tank.
The working principle is as follows:
the water supply and return interfaces of the unit to be detected are connected with the water supply and return interfaces of the device through hoses, a proper circulating pump, a flowmeter and an adjusting valve are selected according to the calculated flow of the unit to be detected, and the pipeline shutoff valve where the circulating pump, the flowmeter and the adjusting valve are located in the device is opened and the rest is closed. And starting a water replenishing pump of the water replenishing system to fill water into the equipment and the unit to be detected from the water tank, and reaching the preset pressure. And starting the circulating pump, controlling the opening of the electric regulating valve through the PLC cabinet, regulating the flow to reach a value to be measured, reading the numerical value of the pressure transmitter after the system runs stably, and calculating the resistance.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims (7)

1. The utility model provides a stable heat exchanger unit resistance monitoring devices which characterized in that: the system comprises a PLC control cabinet (1), a tap water system (3), a circulating system (4), a water replenishing system (5), a flow monitoring pipe set, a shutoff valve (8), a steady flow tank set (9), a pressure transmitter (10), a pressure test system (12) and a water recovery system (13);
the outlet end of flow monitoring nest of tubes is linked together with the entry end of circulation system (4), the exit end of circulation system (4) is linked together with the entry end of stationary flow jar group (9), the entry end of flow monitoring nest of tubes and the exit end of stationary flow jar group (9) are linked together through shutoff valve (8) and the water supply end export of examining the unit and water supply end entry respectively, and be equipped with pressure transmitter (10) between the entry end of flow monitoring nest of tubes and the exit end of stationary flow jar group (9), water system (3) divide two branches and are linked together with the entry end of circulation system (4), be equipped with water charging system (5) and pressure test system (12) on two branches respectively, the exit end and the entry end of recovered water system (13) are linked together with running water system (3) and the outlet of examining the unit respectively, PLC switch board (1) respectively with running water system (3), The circulating system (4), the water replenishing system (5), the flow monitoring pipe set, the pressure transmitter (10), the pressure testing system (12) and the water recycling system (13) are electrically connected.
2. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the tap water system (3) comprises an inlet shutoff valve, a filter, an electromagnetic valve, a remote water meter, a float valve and a water tank, wherein the inlet of the water tank is communicated with a municipal tap water pipeline, and the inlet shutoff valve, the filter, the electromagnetic valve, the remote water meter and the float valve are sequentially arranged at the inlet of the water tank.
3. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the circulating system (4) comprises a plurality of groups of circulating pipelines connected in parallel, and each group of circulating pipelines is sequentially provided with a check valve, a flexible connection and a water pump.
4. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the water supplementing system (5) comprises a water supplementing pipeline, a water inlet shutoff valve, a water supplementing pump, a check valve, an expansion tank and a water outlet shutoff valve, wherein the water supplementing pipeline is sequentially provided with the water inlet shutoff valve, the water supplementing pump, the check valve, the expansion tank and the water outlet shutoff valve.
5. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the flow monitoring pipe group comprises a plurality of flow monitoring pipelines, and each flow monitoring pipeline is sequentially provided with a flowmeter (6), an electric regulating valve (7) and a shut-off valve.
6. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the pressure test system (12) comprises an inlet shutoff valve, an outlet shutoff valve, a check valve, a water supplementing pump, a high-pressure plunger pump and an electrical measurement pressure relief valve, wherein the water supplementing pump, the high-pressure plunger pump and the electrical measurement pressure relief valve are respectively arranged in parallel through three pipelines, and the three pipelines are respectively provided with the inlet shutoff valve, the outlet shutoff valve and the check valve.
7. The stable heat exchanger unit resistance monitoring device of claim 1, wherein: the recycled water system (13) comprises a recycled water tank and a submersible pump, the inlet end of the recycled water tank is communicated with a water outlet of the unit to be detected, the submersible pump is arranged in the recycled water tank, and the outlet end of the submersible pump is communicated with a tap water system.
CN201922399144.XU 2019-12-27 2019-12-27 Stable heat exchanger unit resistance monitoring devices Active CN211575976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922399144.XU CN211575976U (en) 2019-12-27 2019-12-27 Stable heat exchanger unit resistance monitoring devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922399144.XU CN211575976U (en) 2019-12-27 2019-12-27 Stable heat exchanger unit resistance monitoring devices

Publications (1)

Publication Number Publication Date
CN211575976U true CN211575976U (en) 2020-09-25

Family

ID=72551577

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922399144.XU Active CN211575976U (en) 2019-12-27 2019-12-27 Stable heat exchanger unit resistance monitoring devices

Country Status (1)

Country Link
CN (1) CN211575976U (en)

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