CN205919554U

CN205919554U - Absorption refrigeration unit

Info

Publication number: CN205919554U
Application number: CN201620640466.2U
Authority: CN
Inventors: 董小林; 王升; 王娟; 刘华; 张治平
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2016-06-22
Filing date: 2016-06-22
Publication date: 2017-02-01
Anticipated expiration: 2026-06-22

Abstract

The utility model provides an absorption refrigeration unit, including absorber (1), its be provided with the opening on the bottom of absorber (1), the unit is still including the dirty discharging equipment (2) of collection, collection dirty discharging equipment (2) set up the bottom of absorber (1), just collection dirty discharging equipment (2) are including setting up absorber (1) bottom downside middle position department just passes through the opening with the dirty groove (21) of absorber (1) inside collection that is linked together. Through the utility model discloses can reach fine getting rid of because the uncontrollable impurity that causes is remained in the production technology, can also prevent effectively that tiny impurity from blockking up cloth liquid device, solves the jam problem of the tiny accumulation of impurities to unit cloth liquid device.

Description

A kind of absorption refrigeration unit

Technical field

This utility model belongs to refrigeration technology field and in particular to a kind of absorption refrigeration unit.

Background technology

Lithium bromide absorption-type machine unit requires very high, the weldering that therefore unit is related in installation process to the vacuum performance of unit Connect operation more, necessarily lead to unit to produce the debris such as substantial amounts of welding slag in installation process.Meanwhile, lithium-bromide solution also has one Fixed corrosivity, in order to slow down the corrosion that unit is in operation, unit is many before runtime will to be passivated, that is, pass through in solution Adding corrosion inhibiter makes the materials such as steel plate and heat exchanger tube within unit generate one layer of fine and close oxide-film.Entering with passivating process OK, partial impurities can also be produced.

The liquid distributor that the lithium bromide product of main flow is adopted at present mainly has spray and drips two kinds of pouring, if inside unit The debris such as welding slag, corrosion are more, necessarily cause the blocking of liquid distributor, thus affecting the refrigeration of unit, heating performance.For this One phenomenon, at present each producer following several measure is mainly taken to the anti-blocking of lithium bromide chiller.

1st, strictly control the welding slag in production process, drift along, float the impurity such as rust.Focus on cleaning to make in producing each operation Industry.The debris such as welding slag are carried out with strict polishing chipping operation.

2nd, adopt hole spraying technique on solution, sprayed by hole on solution, accumulation does not cause in bottom to make the debris such as welding slag The blocking of shower device is dripped at rear portion.

Uncontrollable factor is had using first method, the skilled operation degree of workman and experience have to the content of debris Important impact.Second can suppress the blocking of liquid distributor to a certain extent, but the suppression for the less impurity of granule Make with inconspicuous, if equally will also result in the stifled of Drip irrigation in the accumulation of System Solution continuous cyclic process small particles Plug.

Or affecting relatively because the clogging-preventing measures of lithium bromide absorption-type machine unit of the prior art have uncontrollable factor Or do not have greatly the technical problem of effective inhibitory action etc., therefore this utility model for the blocking of the less impurity of granule Research design goes out a kind of absorption refrigeration unit.

Utility model content

Therefore, the technical problems to be solved in the utility model is to overcome the anti-blocking of absorption installation of the prior art to arrange Do not have effective inhibitory action or applying the uncontrollable factor of presence and affecting the larger blocking for the less impurity of granule Defect, thus providing a kind of absorption refrigeration unit.

This utility model provides a kind of absorption refrigeration unit, and including absorber, it sets on the bottom of described absorber It is equipped with opening, described unit also includes dirt collection tapping equipment, described dirt collection tapping equipment is arranged on the bottom of described absorber, and Described dirt collection tapping equipment includes being arranged on the downside of described absorber bottom central position and by described opening and described suction Receive the sewage sump being connected inside device.

Preferably, being shaped as of the vertical section of the long side direction along excessively described absorber central axis for the described sewage sump Rectangular cross-sectional.

Preferably, being shaped as of the vertical section of the long side direction along excessively described absorber central axis for the described sewage sump Triangular-section.

Preferably, described dirt collection tapping equipment also includes the bottom being arranged on described sewage sump and the discharge being communicated to outside Pipeline.

Preferably, described discharge pipe is additionally provided with vent valves.

Preferably, also include being arranged at described dirt collection trench bottom for being expelled to the solution in described sewage sump outside it Discharge pipe, described dirt collection trench bottom and the bottom inner bottom surface higher than described sewage sump are stretched out in one end of described discharge pipe, another End is communicated to the solution pump outside described absorber.

Preferably, the absorbent of described absorption refrigeration unit is lithium bromide.

This utility model also provides a kind of blowdown control method of absorption refrigeration unit, and it utilizes aforesaid absorption system Cold group, is controlled to the blowdown process of described unit by described dirt collection tapping equipment.

Preferably, when described dirt collection tapping equipment includes discharge pipe and vent valves, and when miscellaneous in described absorber After matter accumulation a period of time, open described vent valves, carry out blowdown；When in described absorber, solution impurity content is less, Close vent valves, stop blowdown.

Preferably, when in described absorber, solution content is less, by described discharge pipe to described absorber inside Carry out the filling of solution.

A kind of absorption refrigeration unit that this utility model provides has the advantages that

Or 1. the clogging-preventing measures solving absorption refrigeration unit exist the impact of uncontrollable factor larger for The blocking of the less impurity of granule does not have the defect of effective inhibitory action, can either exclude well in production technology due to not The controlled impurities left causing, moreover it is possible to be effectively prevented tiny impurity blocking liquid distributor, solves fine impurities and gathers to machine The blockage problem of group liquid distributor；

2. the pump housing probability of malfunction that solution pump causes because of impurity in solution can also be effectively reduced simultaneously, be conducive to unit real Now stably run.

Brief description

Fig. 1 is the first embodiment absorber portion of the absorption refrigeration unit that this utility model has dirt collection tapping equipment The structural representation dividing；

Fig. 2 is the sectional view in the a-a direction of Fig. 1；

Fig. 3 is the second embodiment absorber portion of the absorption refrigeration unit that this utility model has dirt collection tapping equipment The structural representation dividing；

Fig. 4 is the sectional view in the b-b direction of Fig. 3.

In figure reference is expressed as:

1 absorber, 2 dirt collection tapping equipments, 21 sewage sumps, 22 discharge pipes, 23 vent valves, 3 rows Outlet pipe.

Specific embodiment

As Figure 1-4, this utility model provides a kind of absorption refrigeration unit, and including absorber 1, it is in described absorption The bottom of device 1 is provided with opening, also includes dirt collection tapping equipment 2, and described dirt collection tapping equipment 2 is arranged on described absorber 1 Bottom, and described dirt collection tapping equipment 2 include being arranged on the downside of described absorber 1 bottom central position and with described absorber The sewage sump 21 being connected inside 1.

Because the liquid level of solution in absorber internal cavity is higher, and solution moves even rotation, therefore logical Crossing on the downside of absorber bottom surface setting can be effectively by absorber solution with the sewage sump being connected inside absorber Impurity is accommodated in this sewage sump by the sedimentation of gravity it is therefore prevented that depositing due to impurity in the part such as liquid distributor in unit And occur blocking situation；Or solve absorption refrigeration unit clogging-preventing measures exist uncontrollable factor (due to Artificial operation) or affecting the defect that the larger blocking for the less impurity of granule does not have effective inhibitory action, can either Exclude well in production technology due to the uncontrollable impurities left causing moreover it is possible to be effectively prevented tiny impurity blocking cloth liquid Device, solves the blockage problem to unit liquid distributor for the fine impurities accumulation.

The effect described sewage sump 21 being arranged on the central position of described absorber 1 bottom is: due to absorber Middle solution is continuous flowing, and the probability that there is the impurity being settled down with central position is greater than at marginal position, Therefore the central position by sewage sump is arranged on absorber bottom can be effectively so that the impurity sedimentation in solution falls Enter in this sewage sump, improve blowdown, impurity removal, anticlogging effect and effect.

As shown in Figure 1-2 it is preferable that described sewage sump 21 is along the long side direction of excessively described absorber 1 central axis Vertical section be shaped as rectangular cross-sectional.This be one kind of sewage sump preferred embodiment and version, will dirt collection Groove is arranged to the form of rectangular structure, and top surface is fitted with the bottom surface of absorber, bottom surface is plane and the long edge of cuboid The rectangular structure that absorber long side direction extends, such structure processes fast and easy, and sewage sump can pass through screw, spiral shell The mode such as bolt or bonding is fixed on absorber bottom surface it is also possible to be integrally formed with absorber.

It is further preferred that the sewage sump 21 of this rectangular structure is along the short side direction of described absorber 1 and excessively described suction The vertical section shape receiving device 1 central axis is also rectangular shape.

As shown in Figure 3-4 it is preferable that described sewage sump 21 is along the long side direction of excessively described absorber 1 central axis Vertical section be shaped as triangular-section.By the above-mentioned section of sewage sump is set to triangular-section, that is, can be effective Ground forms the triangular prism extending along absorber short side direction, and two points in this described triangular-section be respectively positioned on described In the bottom face of absorber 1, that is, triangular prism upper surface is plane, fits with absorber bottom surface, another in triangular-section An outer point is that the minimum point of vertical direction is at triangular prism bottom.Because in absorber, liquid level is higher, Therefore solution internal flow is relatively stable, and such structure enables to make in gravity with the fine impurities that solution circulation flow is moved With under can be deposited in dirt collection trench bottom, and bottom accumulation (impurity in absorber is received and assembles to this triangular ridges At the lowest positions of post), and then efficiently and conveniently impurity is discharged from this absorber, improve contaminant removal effectiveness.

It is further preferred that described sewage sump 21 is along the short side direction of described absorber 1 and excessively described absorber 1 central shaft The vertical section of line is shaped as rectangular shape.

Preferably, described dirt collection tapping equipment 2 also includes being arranged on the bottom (or bottom) of described sewage sump 21 and connecting Pass to the discharge pipe 22 of outside.Can be had by being communicated to the discharge pipe of outside in dirt collection trench bottom (or bottom) setting The pollutions such as impurity are discharged sewage sump by effect ground.

Preferably, described discharge pipe 22 is additionally provided with vent valves 23.Can be effective by arranging vent valves Ground is controlled to discharge process with practical situation as needed, plays to open, close or increase or reduce and opens aperture to control The purpose of emission flow processed and effect.

Preferably, also include being arranged at described sewage sump 21 bottom for the solution in described sewage sump 21 is expelled to it Outside discharge pipe 3, described sewage sump 21 bottom is stretched out and higher than in the bottom of described sewage sump 21 in one end of described discharge pipe 3 Bottom surface, the other end is communicated to the solution pump (not shown) outside described absorber 1.By arrange solution pump and its with absorber phase Absorber bottom can be completed the solution after Absorption and is expelled in solution pump by discharge pipe by discharge pipe even effectively, Provide condition for realizing kind of refrigeration cycle；Further, by being arranged at one end of discharge pipe higher than in the bottom of sewage sump Bottom surface (i.e. the bottom of bottom surface), can be effectively prevented the depositing contaminants that solution pumping is drawn onto sewage sump bottom, reduce solution The probability of malfunction that pump causes because of drawing solution impurity.

Preferably, described absorber 1 fills into absorbent by the way of the spray of upper hole.Can by way of upper hole sprays Larger solid impurity is made to stay spray bottom of the tube, primarily to playing the effect preventing spray equipment rear portion aperture clogs.

Preferably, the absorbent of described absorption refrigeration unit is lithium bromide.This is absorption refrigeration of the present utility model The species of a kind of preferred absorbent of agent group, that is, form lithium bromide absorption refrigerating set.

This utility model also provides a kind of blowdown control method of absorption refrigeration unit, and it utilizes aforesaid absorption system Cold group, is controlled to the blowdown process of described unit by described dirt collection tapping equipment 2.By using aforesaid absorption Refrigeration unit and by dirt collection tapping equipment, the blowdown process of unit is controlled can be effectively by absorber solution Impurity is accommodated in this sewage sump by the sedimentation of gravity it is therefore prevented that depositing due to impurity in the part such as liquid distributor in unit And occur blocking situation；Or solve absorption refrigeration unit clogging-preventing measures exist uncontrollable factor (due to Artificial operation) or affecting the defect that the larger blocking for the less impurity of granule does not have effective inhibitory action, can either Exclude well in production technology due to the uncontrollable impurities left causing moreover it is possible to be effectively prevented tiny impurity blocking cloth liquid Device, solves the blockage problem to unit liquid distributor for the fine impurities accumulation.

Preferably, when described dirt collection tapping equipment 2 includes discharge pipe 22 and vent valves 23, and work as described absorber In 1 impurities accumulation for a period of time after, open described vent valves 23, carry out blowdown；When solution impurity content in described absorber 1 When less, close vent valves 23, stop blowdown.This is dirt collection tapping equipment to be entered by vent valves according to actual situation The concrete operation step of row blowdown and form, are capable of carrying out blowdown when impurity level is larger, stop row when impurity level is less Dirty purpose and effect.

Preferably, when in described absorber 1, solution content is less, by described discharge pipe 22 from outside to described suction Receive the filling carrying out (a certain amount of) solution inside device 1, thus reach maintaining the stable purpose of amount of solution and effect in unit.

Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free Ground combination, superposition.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model Protection domain within.The above is only preferred implementation of the present utility model it is noted that for the art For those of ordinary skill, on the premise of without departing from this utility model know-why, some improvement and modification can also be made, These improve and modification also should be regarded as protection domain of the present utility model.

Claims

1. a kind of absorption refrigeration unit, including absorber (1) it is characterised in that: on the bottom of described absorber (1) arrange There is opening, described unit also includes dirt collection tapping equipment (2), described dirt collection tapping equipment (2) is arranged on described absorber (1) Bottom, and described dirt collection tapping equipment (2) includes being arranged on the downside of described absorber (1) bottom central position and by described Opening and the sewage sump (21) being connected inside described absorber (1).

2. absorption refrigeration unit according to claim 1 it is characterised in that: described sewage sump (21) is along excessively described suction Receive device (1) central axis the vertical section of long side direction be shaped as rectangular cross-sectional.

3. absorption refrigeration unit according to claim 1 it is characterised in that: described sewage sump (21) is along excessively described suction Receive device (1) central axis the vertical section of long side direction be shaped as triangular-section.

4. the absorption refrigeration unit according to one of claim 1-3 it is characterised in that: described dirt collection tapping equipment (2) Also include the bottom being arranged on described sewage sump (21) and the discharge pipe (22) being communicated to outside.

5. absorption refrigeration unit according to claim 4 it is characterised in that: also set up on described discharge pipe (22) There are vent valves (23).

6. according to claim 1-3, absorption refrigeration unit described in one of 5 it is characterised in that: also include being arranged at described collection Dirty groove (21) bottom is used for for the solution in described sewage sump (21) being expelled to its outside discharge pipe (3), described discharge pipe (3) One end stretch into described sewage sump (21) bottom and the bottom inner bottom surface higher than described sewage sump (21), the other end is communicated to described The outside solution pump of absorber (1).

7. according to claim 1-3, absorption refrigeration unit described in one of 5 it is characterised in that: described absorption refrigeration unit Absorbent be lithium bromide.