CN203857673U - Constant-temperature water tank - Google Patents

Constant-temperature water tank Download PDF

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Publication number
CN203857673U
CN203857673U CN201420131901.XU CN201420131901U CN203857673U CN 203857673 U CN203857673 U CN 203857673U CN 201420131901 U CN201420131901 U CN 201420131901U CN 203857673 U CN203857673 U CN 203857673U
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CN
China
Prior art keywords
water
tank
casing
temperature
pipe
Prior art date
Application number
CN201420131901.XU
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Chinese (zh)
Inventor
孙奉仲
Original Assignee
孙奉仲
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Application filed by 孙奉仲 filed Critical 孙奉仲
Priority to CN201420131901.XU priority Critical patent/CN203857673U/en
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Publication of CN203857673U publication Critical patent/CN203857673U/en

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Abstract

The utility model relates to a constant-temperature water tank which comprises a tank body and a controller, wherein the tank body is partitioned into a first tank body and a second tank body through a vertical partitioning plate; a first heating device is mounted in the first tank body; a second heating device is mounted in the second tank body; the power of the first heating device is higher than that of the second heating device; a water return pipe and a water supplementation pipe are arranged on the top of the first tank body; a drainage pipe is mounted at the bottom of the first tank body; an overflow pipe and a water supply pipeline are mounted on the side wall of the second tank body; the drainage pipe is positioned at a position above the side wall of the second tank body, and the position is lower than the height of the vertical partitioning plate; the water supply pipeline is positioned at a position, which is close to the bottom, below the side wall of the second tank body and supplies water to the outside through a water pump; the drainage pipe and the overflow pipe are connected to a water drainage pipe; a first temperature sensor is mounted on the vertical partition plate; a second temperature sensor is mounted in the water supply pipeline; the constant-temperature water tank is characterized in that an electrical proportional valve and an electronic flowmeter are mounted on a pipeline at an outlet of the water pump; the electronic flowmeter is connected to the electrical proportional valve and supplies a flow feedback signal to the electrical proportional valve. The constant-temperature water tank provided by the utility model is high in water temperature stability and constant in water discharging amount, and can meet a high-precision experiment requirement.

Description

A kind of constant temperature water tank

Technical field

The present invention relates to control field, relate in particular to a kind of constant temperature water tank for power plant's tail flue gas local heat transfer.

Background technology

Constant temperature water tank belongs to industrial circle and the conventional instrument and equipment of scientific research field, at some, need accurately to control the occasion of cooling procedure parameter, in as cooling in the cavity of laser instrument or some scientific experiment, usually need to pass into the specific thermostatted water of temperature range in cooling tube.

Figure 1 shows that constant temperature water tank of the prior art, this constant temperature water tank has utilized two-stage principle of control temperature, has realized the high accuracy of water temperature and has controlled.But this water tank still exists defect, particularly, for some experiment, wish that water tank can continue to provide the thermostatted water of constant flow, to get rid of the impact that changes in flow rate is brought experimental result.Yet, for a long time in experimentation, due to the variation of damping in water pump self reason and water route, often there is continuous variation in water supply flow, to experimental result, bring very large impact, therefore, be desirable to provide and a kind ofly can make the constant temperature water tank that thermostatted water supply is constant.

Summary of the invention

1, the invention technical problem to be solved:

In order to solve the technical problem of above-mentioned existence, the present invention, according to experiment needs, for the particular surroundings of power plant, aims to provide a kind of water supply flow and is applicable to accurately the experiment constant temperature water tank using in power plant.

2, solve the technical scheme that its technical problem adopts:

The utility model provides a kind of constant temperature water tank, comprise casing 1 and controller 2, wherein, described casing 1 is separated into the first casing 11 and the second casing 12 by vertical clapboard 3, in described the first casing 11, first heater 51 is installed, in described the second casing 12, secondary heating mechanism 52 is installed, the power of described first heater 51 is greater than the power of described secondary heating mechanism 52, the top of described the first casing 11 is provided with return pipe 42 and filling pipe 43, the bottom of described the first casing is provided with leak-off pipe 441, overflow pipe 442 and water supply line 41 are installed on the sidewall of described the second casing 12, described leak-off pipe 441 is positioned at the sidewall top position of described the second casing 12 and this position lower than the height of described vertical clapboard 3, described water supply line 41 is positioned at the position that described the second wall box below approaches bottom, by water pump 8, to outside, supply water, described leak-off pipe 441 is all connected to drainpipe 44 with described overflow pipe 442, the first temperature sensor 71 is installed on described vertical clapboard 3, described water supply line 41 inside are provided with the second temperature sensor 72, it is characterized in that, on the pipeline of described water pump 8 outlets, electric Proportion valve 9 and electronic flowmeter 10 are installed, electronic flowmeter 10 is connected to electric Proportion valve 9, and provide flow feedback signal to electric Proportion valve 9.

The volume of described the first casing 11 is greater than the volume of described the second casing 12.

Described controller 2 comprises power supply 21, the first temperature controller 221 being connected with described the first temperature sensor 71, the second temperature controller 222 being connected with described the second temperature sensor 72, described the first temperature controller 221 is controlled the work of described first heater 51 by the first relay 231, described the second temperature controller is controlled described secondary heating mechanism 52 work by the second relay 232.

3, the beneficial effect compared with prior art having:

The utility model is introduced feedback, realizes thermostatted water quantity delivered and remains unchanged in whole experimentation.

Accompanying drawing explanation

Fig. 1 is existing constant temperature water tank schematic diagram;

Fig. 2 is the schematic diagram of constant temperature water tank in the embodiment of the present invention;

Fig. 3 is the schematic diagram of constant temperature water tank controller in the embodiment of the present invention.

The specific embodiment

As shown in Figure 2, the constant temperature water tank that the present embodiment provides comprises casing 1 and controller 2, wherein, described casing 1 is separated into the first casing 11 and the second casing 12 by vertical clapboard 3, in described the first casing 11, first heater 51 is installed, in described the second casing 12, secondary heating mechanism 52 is installed, the power of described first heater 51 is greater than the power of described secondary heating mechanism 52, the top of described the first casing 11 is provided with return pipe 42 and filling pipe 43, the bottom of described the first casing is provided with leak-off pipe 441, overflow pipe 442 and water supply line 41 are installed on the sidewall of described the second casing 12, described leak-off pipe 441 is all connected to drainpipe 44 with described overflow pipe 442, the first temperature sensor 71 is installed on described vertical clapboard 3, described water supply line 41 inside are provided with the second temperature sensor 72, described water supply line 41 is positioned at the position that described the second wall box below approaches bottom, by water pump 8, to outside, supply water, on the pipeline of described water pump 8 outlets, electric Proportion valve 9 and electronic flowmeter 10 are installed, electronic flowmeter 10 is connected to electric Proportion valve 9, and provide flow feedback signal to electric Proportion valve 9.

The volume of described the first casing 11 is greater than the volume of described the second casing 12, and particularly, the volume of described the first casing 11 is twices of the volume of described the second casing 12.

Described leak-off pipe 441 is positioned at the sidewall top position of described the second casing and its height lower than the height of described vertical clapboard 3.

The power of described first heater is greater than the power of described secondary heating mechanism, and particularly, the power of described first heater is 4000KW, and the power of described secondary heating mechanism is 1000KW.

The first control valve 61 is installed on described water supply line 41, the second control valve 62 is installed on described filling pipe 43, the 3rd control valve 63 is installed on described leak-off pipe 441.

As shown in Figure 3, the control system that the constant temperature water tank that the present embodiment provides is used comprises power supply 21, the first temperature controller 221 being connected with described the first temperature sensor 71, the second temperature controller 222 being connected with described the second temperature sensor 72, described the first temperature controller 221 is controlled the work of described first heater 51 by the first relay 231, described the second temperature controller is controlled described secondary heating mechanism 52 work by the second relay 232.

In the present embodiment, constant temperature water tank, for boiler exhaust gas local heat transfer, provides the thermostatted water of 55 ℃ to heat exchanger tube.Heat exchanger tube is arranged in the flue after boiler air preheater, this section of flue gas in flue temperature is between 110-140 ℃, by measuring such as inflow temperature, leaving water temperature, thermostatted water flow, observing the parameters such as heat exchanger tube temperature, seek the impact of the tube wall temperature exchange heat pipe heat exchange property of the heat exchanger tube that is arranged in boiler exhaust gas.

The course of work of water tank is as follows:

Heating period, close the 3rd control valve 63, the first control valve 61 and water pump 8, by moisturizing pipeline, in water tank, filling with water, is 52 ℃ by the control Temperature Setting of the first temperature controller 221 and the second temperature controller, the thermostatted water to 52 ℃ in heating the first casing 11 and the second casing 12.

Working stage, is 53 ℃ by the control Temperature Setting of the first temperature controller 221, and the control Temperature Setting of the second temperature controller 222 is 55 ℃, opens the first control valve 61 and water pump 8.By regulating the aperture of the first control valve 61, control the flow of inlet water of thermostatted water, the heat-transfer character that can observe tube wall under various heat exchange amount.

The interference bringing due to pipeline damping change for fear of flow of inlet water, electric Proportion valve 9 and electronic flowmeter are used in conjunction with, set suitable initial value to electric Proportion valve 9, and the signal of telecommunication that electronic flowmeter 10 is obtained feed back to the signal input part of electric Proportion valve 9.In work, electric Proportion valve 9, according to input signal and the continuous automatic regulating valve door of preset value aperture, reaches the constant object of piping flow.

Change the preset temperature of the first temperature controller 221, the second temperature controller 222, regulate the flow of filling pipe 43, can realize the control to water temperature in constant temperature water tank, the utility model can be realized the accurate control of water temperature any temperature between 40-80 ℃.

Ending phase, first closes the second control valve 62, opens the water in emptying the first casing 11 of the 3rd control valve 63, and after the water in the second casing 12 is drained by water pump 8, the 8, first control valve 61, electric Proportion valve 9 and electronic flowmeter 10 switch off the pump.

Described is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.

Claims (1)

1. a constant temperature water tank, comprise casing and controller, wherein, described casing is separated into the first casing 11 and the second casing by vertical clapboard, in described the first casing, first heater is installed, in described the second casing, secondary heating mechanism is installed, the power of described first heater is greater than the power of described secondary heating mechanism, the top of described the first casing is provided with return pipe and filling pipe, the bottom of described the first casing is provided with leak-off pipe, overflow pipe and water supply line are installed on the sidewall of described the second casing, described leak-off pipe is positioned at the sidewall top position of described the second casing and this position lower than the height of described vertical clapboard, described water supply line is positioned at the position that described the second wall box below approaches bottom, by water pump, to outside, supply water, described leak-off pipe and described overflow pipe are all connected to drainpipe, the first temperature sensor is installed on described vertical clapboard, described water supply line inside is provided with the second temperature sensor, it is characterized in that, electric Proportion valve and electronic flowmeter are installed on the pipeline of described exit of pump, electronic flowmeter is connected to electric Proportion valve, and provide flow feedback signal to electric Proportion valve, described controller comprises power supply, the first temperature controller being connected with described the first temperature sensor, the second temperature controller being connected with described the second temperature sensor, described the first temperature controller is by the work of first heater described in the first Control, described the second temperature controller is worked by secondary heating mechanism described in the second Control.
CN201420131901.XU 2014-03-24 2014-03-24 Constant-temperature water tank CN203857673U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420131901.XU CN203857673U (en) 2014-03-24 2014-03-24 Constant-temperature water tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420131901.XU CN203857673U (en) 2014-03-24 2014-03-24 Constant-temperature water tank

Publications (1)

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CN203857673U true CN203857673U (en) 2014-10-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105665054A (en) * 2016-04-06 2016-06-15 贵州大学 Experimental constant-temperature water tank capable of automatically supplementing water
CN105716224A (en) * 2014-12-22 2016-06-29 株式会社堀场Stec VAPORIZING container, vaporizer, and VAPORIZING DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105716224A (en) * 2014-12-22 2016-06-29 株式会社堀场Stec VAPORIZING container, vaporizer, and VAPORIZING DEVICE
CN105665054A (en) * 2016-04-06 2016-06-15 贵州大学 Experimental constant-temperature water tank capable of automatically supplementing water

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141001

Termination date: 20180324

CF01 Termination of patent right due to non-payment of annual fee